diff --git a/libc/arch-arm64/arm64.mk b/libc/arch-arm64/arm64.mk
index 62974b6..223bc74 100644
--- a/libc/arch-arm64/arm64.mk
+++ b/libc/arch-arm64/arm64.mk
@@ -1,7 +1,6 @@
 # arm64 specific configs
 
 libc_common_src_files_arm64 := \
-    bionic/index.cpp \
     bionic/memchr.c \
     bionic/__memcmp16.cpp \
     bionic/memrchr.c \
diff --git a/libc/arch-mips64/mips64.mk b/libc/arch-mips64/mips64.mk
index 9a24c61..2b18042 100644
--- a/libc/arch-mips64/mips64.mk
+++ b/libc/arch-mips64/mips64.mk
@@ -1,7 +1,6 @@
 # mips64 specific configs
 
 libc_common_src_files_mips64 := \
-    bionic/index.cpp \
     bionic/memchr.c \
     bionic/memcmp.c \
     bionic/memmove.c \
diff --git a/libc/arch-x86/bionic/__bionic_clone.S b/libc/arch-x86/bionic/__bionic_clone.S
index 7c972de..0c0feff 100644
--- a/libc/arch-x86/bionic/__bionic_clone.S
+++ b/libc/arch-x86/bionic/__bionic_clone.S
@@ -25,8 +25,8 @@
         int     $0x80
 
         # Check result.
-        cmpl    $0, %eax
-        je      .L_bc_child
+        testl    %eax, %eax
+        jz      .L_bc_child
         jg      .L_bc_parent
 
         # An error occurred, so set errno and return -1.
@@ -34,7 +34,6 @@
         pushl   %eax
         call    __set_errno
         addl    $4, %esp
-        orl     $-1, %eax
         jmp     .L_bc_return
 
 .L_bc_child:
@@ -44,7 +43,7 @@
         hlt
 
 .L_bc_parent:
-        # we're the parent; nothing to do.
+        # We're the parent; nothing to do.
 .L_bc_return:
         popl    %edi
         popl    %esi
diff --git a/libc/arch-x86/bionic/syscall.S b/libc/arch-x86/bionic/syscall.S
index 0178f41..8e76c4e 100644
--- a/libc/arch-x86/bionic/syscall.S
+++ b/libc/arch-x86/bionic/syscall.S
@@ -40,7 +40,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     # Restore the callee save registers.
     pop    %ebp
diff --git a/libc/arch-x86/bionic/vfork.S b/libc/arch-x86/bionic/vfork.S
index ec6f6ca..ffa6b16 100644
--- a/libc/arch-x86/bionic/vfork.S
+++ b/libc/arch-x86/bionic/vfork.S
@@ -39,7 +39,6 @@
   negl    %eax
   pushl   %eax
   call    __set_errno
-  orl     $-1, %eax
 1:
-    jmp     *%ecx  // Jump to the stored return address.
+  jmp     *%ecx  // Jump to the stored return address.
 END(vfork)
diff --git a/libc/arch-x86/silvermont/string/sse2-memmove-slm.S b/libc/arch-x86/silvermont/string/sse2-memmove-slm.S
index 79a0a36..b971f0b 100644
--- a/libc/arch-x86/silvermont/string/sse2-memmove-slm.S
+++ b/libc/arch-x86/silvermont/string/sse2-memmove-slm.S
@@ -74,13 +74,13 @@
 #endif
 
 #ifdef USE_AS_BCOPY
-# define SRC           PARMS
-# define DEST          SRC+4
-# define LEN           DEST+4
+# define SRC		PARMS
+# define DEST		SRC+4
+# define LEN		DEST+4
 #else
-# define DEST          PARMS
-# define SRC           DEST+4
-# define LEN           SRC+4
+# define DEST		PARMS
+# define SRC		DEST+4
+# define LEN		SRC+4
 #endif
 
 #define CFI_PUSH(REG)		\
@@ -109,15 +109,15 @@
 /* Check whether we should copy backward or forward.  */
 	cmp	%eax, %edx
 	je	L(mm_return)
-	ja	L(mm_len_0_or_more_backward)
+	jg	L(mm_len_0_or_more_backward)
 
 /* Now do checks for lengths. We do [0..16], [0..32], [0..64], [0..128]
 	separately.  */
 	cmp	$16, %ecx
 	jbe	L(mm_len_0_16_bytes_forward)
 
-	cmpl    $32, %ecx
-	jg	L(mm_len_32_or_more_forward)
+	cmpl	$32, %ecx
+	ja	L(mm_len_32_or_more_forward)
 
 /* Copy [0..32] and return.  */
 	movdqu	(%eax), %xmm0
@@ -127,8 +127,8 @@
 	jmp	L(mm_return)
 
 L(mm_len_32_or_more_forward):
-	cmpl    $64, %ecx
-	jg	L(mm_len_64_or_more_forward)
+	cmpl	$64, %ecx
+	ja	L(mm_len_64_or_more_forward)
 
 /* Copy [0..64] and return.  */
 	movdqu	(%eax), %xmm0
@@ -142,8 +142,8 @@
 	jmp	L(mm_return)
 
 L(mm_len_64_or_more_forward):
-	cmpl    $128, %ecx
-	jg	L(mm_len_128_or_more_forward)
+	cmpl	$128, %ecx
+	ja	L(mm_len_128_or_more_forward)
 
 /* Copy [0..128] and return.  */
 	movdqu	(%eax), %xmm0
@@ -165,72 +165,66 @@
 	jmp	L(mm_return)
 
 L(mm_len_128_or_more_forward):
-
-	cmp     $SHARED_CACHE_SIZE_HALF, %ecx
-	jae     L(mm_large_page_forward)
-
 	PUSH (%esi)
 	PUSH (%edi)
-	movl	%eax, %esi
-	movl	%edx, %edi
 
 /* Aligning the address of destination.  */
-	movdqu	(%esi), %xmm0
-	movdqu	16(%esi), %xmm1
-	movdqu	32(%esi), %xmm2
-	movdqu	48(%esi), %xmm3
+	movdqu	(%eax), %xmm0
+	movdqu	16(%eax), %xmm1
+	movdqu	32(%eax), %xmm2
+	movdqu	48(%eax), %xmm3
 
-	leal	64(%edi), %edx
-	andl	$-64, %edx
+	leal	64(%edx), %edi
+	andl	$-64, %edi
+	subl	%edx, %eax
 
-	movl	%esi, %eax
-	subl	%edi, %eax
+	movdqu	(%eax, %edi), %xmm4
+	movdqu	16(%eax, %edi), %xmm5
+	movdqu	32(%eax, %edi), %xmm6
+	movdqu	48(%eax, %edi), %xmm7
 
-	movdqu	(%edx, %eax), %xmm4
-	movdqu	16(%edx, %eax), %xmm5
-	movdqu	32(%edx, %eax), %xmm6
-	movdqu	48(%edx, %eax), %xmm7
+	movdqu	%xmm0, (%edx)
+	movdqu	%xmm1, 16(%edx)
+	movdqu	%xmm2, 32(%edx)
+	movdqu	%xmm3, 48(%edx)
+	movdqa	%xmm4, (%edi)
+	movaps	%xmm5, 16(%edi)
+	movaps	%xmm6, 32(%edi)
+	movaps	%xmm7, 48(%edi)
+	addl	$64, %edi
 
-	movdqu	%xmm0, (%edi)
-	movdqu	%xmm1, 16(%edi)
-	movdqu	%xmm2, 32(%edi)
-	movdqu	%xmm3, 48(%edi)
-	movdqa	%xmm4, (%edx)
-	movdqa	%xmm5, 16(%edx)
-	movdqa	%xmm6, 32(%edx)
-	movdqa	%xmm7, 48(%edx)
-	addl	$64, %edx
-
-	leal	(%edi, %ecx), %ebx
+	leal	(%edx, %ecx), %ebx
 	andl	$-64, %ebx
-
-	cmp	%edx, %ebx
+	cmp	%edi, %ebx
 	jbe	L(mm_copy_remaining_forward)
 
+	cmp	$SHARED_CACHE_SIZE_HALF, %ecx
+	jae	L(mm_large_page_loop_forward)
+
 	.p2align 4
 L(mm_main_loop_forward):
 
-	prefetcht0 128(%edx, %eax)
+	prefetcht0 128(%eax, %edi)
 
-	movdqu	(%edx, %eax), %xmm0
-	movdqu	16(%edx, %eax), %xmm1
-	movdqu	32(%edx, %eax), %xmm2
-	movdqu	48(%edx, %eax), %xmm3
-	movdqa	%xmm0, (%edx)
-	movdqa	%xmm1, 16(%edx)
-	movdqa	%xmm2, 32(%edx)
-	movdqa	%xmm3, 48(%edx)
-	leal	64(%edx), %edx
-	cmp	%edx, %ebx
+	movdqu	(%eax, %edi), %xmm0
+	movdqu	16(%eax, %edi), %xmm1
+	movdqu	32(%eax, %edi), %xmm2
+	movdqu	48(%eax, %edi), %xmm3
+	movdqa	%xmm0, (%edi)
+	movaps	%xmm1, 16(%edi)
+	movaps	%xmm2, 32(%edi)
+	movaps	%xmm3, 48(%edi)
+	leal	64(%edi), %edi
+	cmp	%edi, %ebx
 	ja	L(mm_main_loop_forward)
 
 L(mm_copy_remaining_forward):
-	addl	%edi, %ecx
-	subl	%edx, %ecx
-/* We copied all up till %edx position in the dst.
+	addl	%edx, %ecx
+	subl	%edi, %ecx
+/* We copied all up till %edi position in the dst.
 	In %ecx now is how many bytes are left to copy.
 	Now we need to advance %esi. */
-	leal	(%edx, %eax), %esi
+	leal	(%edi, %eax), %esi
 
 L(mm_remaining_0_64_bytes_forward):
 	cmp	$32, %ecx
@@ -251,8 +245,8 @@
 	ja	L(mm_remaining_3_4_bytes_forward)
 	movzbl	-1(%esi,%ecx), %eax
 	movzbl	(%esi), %ebx
-	movb	%al, -1(%edx,%ecx)
-	movb	%bl, (%edx)
+	movb	%al, -1(%edi,%ecx)
+	movb	%bl, (%edi)
 	jmp	L(mm_return_pop_all)
 
 L(mm_remaining_33_64_bytes_forward):
@@ -260,40 +254,39 @@
 	movdqu	16(%esi), %xmm1
 	movdqu	-32(%esi, %ecx), %xmm2
 	movdqu	-16(%esi, %ecx), %xmm3
-	movdqu	%xmm0, (%edx)
-	movdqu	%xmm1, 16(%edx)
-	movdqu	%xmm2, -32(%edx, %ecx)
-	movdqu	%xmm3, -16(%edx, %ecx)
+	movdqu	%xmm0, (%edi)
+	movdqu	%xmm1, 16(%edi)
+	movdqu	%xmm2, -32(%edi, %ecx)
+	movdqu	%xmm3, -16(%edi, %ecx)
 	jmp	L(mm_return_pop_all)
 
 L(mm_remaining_17_32_bytes_forward):
 	movdqu	(%esi), %xmm0
 	movdqu	-16(%esi, %ecx), %xmm1
-	movdqu	%xmm0, (%edx)
-	movdqu	%xmm1, -16(%edx, %ecx)
-	jmp	L(mm_return_pop_all)
-
-L(mm_remaining_3_4_bytes_forward):
-	movzwl	-2(%esi,%ecx), %eax
-	movzwl	(%esi), %ebx
-	movw	%ax, -2(%edx,%ecx)
-	movw	%bx, (%edx)
-	jmp	L(mm_return_pop_all)
-
-L(mm_remaining_5_8_bytes_forward):
-	movl	(%esi), %eax
-	movl	-4(%esi,%ecx), %ebx
-	movl	%eax, (%edx)
-	movl	%ebx, -4(%edx,%ecx)
+	movdqu	%xmm0, (%edi)
+	movdqu	%xmm1, -16(%edi, %ecx)
 	jmp	L(mm_return_pop_all)
 
 L(mm_remaining_9_16_bytes_forward):
 	movq	(%esi), %xmm0
 	movq	-8(%esi, %ecx), %xmm1
-	movq	%xmm0, (%edx)
-	movq	%xmm1, -8(%edx, %ecx)
+	movq	%xmm0, (%edi)
+	movq	%xmm1, -8(%edi, %ecx)
 	jmp	L(mm_return_pop_all)
 
+L(mm_remaining_5_8_bytes_forward):
+	movl	(%esi), %eax
+	movl	-4(%esi,%ecx), %ebx
+	movl	%eax, (%edi)
+	movl	%ebx, -4(%edi,%ecx)
+	jmp	L(mm_return_pop_all)
+
+L(mm_remaining_3_4_bytes_forward):
+	movzwl	-2(%esi,%ecx), %eax
+	movzwl	(%esi), %ebx
+	movw	%ax, -2(%edi,%ecx)
+	movw	%bx, (%edi)
+	jmp	L(mm_return_pop_all)
 
 L(mm_len_0_16_bytes_forward):
 	testb	$24, %cl
@@ -334,15 +327,20 @@
 	movq	%xmm1, -8(%edx, %ecx)
 	jmp	L(mm_return)
 
+L(mm_recalc_len):
+/* Compute in %ecx how many bytes are left to copy after
+	the main loop stops.  */
+	movl	%ebx, %ecx
+	subl	%edx, %ecx
 /* The code for copying backwards.  */
 L(mm_len_0_or_more_backward):
 
-/* Now do checks for lengths. We do [0..16], [0..32], [0..64], [0..128]
+/* Now do checks for lengths. We do [0..16], [16..32], [32..64], [64..128]
 	separately.  */
 	cmp	$16, %ecx
 	jbe	L(mm_len_0_16_bytes_backward)
 
-	cmpl    $32, %ecx
+	cmpl	$32, %ecx
 	jg	L(mm_len_32_or_more_backward)
 
 /* Copy [0..32] and return.  */
@@ -353,7 +351,7 @@
 	jmp	L(mm_return)
 
 L(mm_len_32_or_more_backward):
-	cmpl    $64, %ecx
+	cmpl	$64, %ecx
 	jg	L(mm_len_64_or_more_backward)
 
 /* Copy [0..64] and return.  */
@@ -368,7 +366,7 @@
 	jmp	L(mm_return)
 
 L(mm_len_64_or_more_backward):
-	cmpl    $128, %ecx
+	cmpl	$128, %ecx
 	jg	L(mm_len_128_or_more_backward)
 
 /* Copy [0..128] and return.  */
@@ -391,10 +389,6 @@
 	jmp	L(mm_return)
 
 L(mm_len_128_or_more_backward):
-
-	cmp     $SHARED_CACHE_SIZE_HALF, %ecx
-	jae     L(mm_large_page_backward)
-
 	PUSH (%esi)
 	PUSH (%edi)
 
@@ -429,17 +423,11 @@
 	leal	64(%edx), %ebx
 	andl	$-64, %ebx
 
-/* Compute in %ecx how many bytes are left to copy after
-	the main loop stops.  */
-	movl	%ebx, %ecx
-	subl	%edx, %ecx
-
 	cmp	%edi, %ebx
-	jb	L(mm_main_loop_backward)
+	jae	L(mm_main_loop_backward_end)
 
-	POP (%edi)
-	POP (%esi)
-	jmp	L(mm_len_0_or_more_backward)
+	cmp	$SHARED_CACHE_SIZE_HALF, %ecx
+	jae	L(mm_large_page_loop_backward)
 
 	.p2align 4
 L(mm_main_loop_backward):
@@ -457,9 +445,10 @@
 	leal	-64(%edi), %edi
 	cmp	%edi, %ebx
 	jb	L(mm_main_loop_backward)
+L(mm_main_loop_backward_end):
 	POP (%edi)
 	POP (%esi)
-	jmp	L(mm_len_0_or_more_backward)
+	jmp	L(mm_recalc_len)
 
 /* Copy [0..16] and return.  */
 L(mm_len_0_16_bytes_backward):
@@ -508,151 +497,30 @@
 	RETURN
 
 L(mm_return_pop_all):
-	movl	%edi, %eax
+	movl	%edx, %eax
 	POP (%edi)
 	POP (%esi)
 	RETURN
 
 /* Big length copy forward part.  */
 
-L(mm_large_page_forward):
-/* Aligning the address of destination. We need to save
-	16 bits from the source in order not to overwrite them.  */
-
-	PUSH (%esi)
-	PUSH (%edi)
-	movl	%eax, %esi
-	movl	%edx, %edi
-
-	movdqu	(%esi), %xmm0
-	movdqu	16(%esi), %xmm1
-	movdqu	32(%esi), %xmm2
-	movdqu	48(%esi), %xmm3
-
-	leal	64(%edi), %edx
-	andl	$-64, %edx
-
-	movl	%esi, %eax
-	subl	%edi, %eax
-
-	movdqu	(%edx, %eax), %xmm4
-	movdqu	16(%edx, %eax), %xmm5
-	movdqu	32(%edx, %eax), %xmm6
-	movdqu	48(%edx, %eax), %xmm7
-
-	movdqu	%xmm0, (%edi)
-	movdqu	%xmm1, 16(%edi)
-	movdqu	%xmm2, 32(%edi)
-	movdqu	%xmm3, 48(%edi)
-	movntdq	%xmm4, (%edx)
-	movntdq	%xmm5, 16(%edx)
-	movntdq	%xmm6, 32(%edx)
-	movntdq	%xmm7, 48(%edx)
-	addl	$64, %edx
-
-	leal	(%edi, %ecx), %ebx
-	andl	$-128, %ebx
-
-	cmp	%edx, %ebx
-	jbe	L(mm_copy_remaining_forward)
-
 	.p2align 4
 L(mm_large_page_loop_forward):
-	movdqu	(%edx, %eax), %xmm0
-	movdqu	16(%edx, %eax), %xmm1
-	movdqu	32(%edx, %eax), %xmm2
-	movdqu	48(%edx, %eax), %xmm3
-	movdqu	64(%edx, %eax), %xmm4
-	movdqu	80(%edx, %eax), %xmm5
-	movdqu	96(%edx, %eax), %xmm6
-	movdqu	112(%edx, %eax), %xmm7
-	movntdq	%xmm0, (%edx)
-	movntdq	%xmm1, 16(%edx)
-	movntdq	%xmm2, 32(%edx)
-	movntdq	%xmm3, 48(%edx)
-	movntdq	%xmm4, 64(%edx)
-	movntdq	%xmm5, 80(%edx)
-	movntdq	%xmm6, 96(%edx)
-	movntdq	%xmm7, 112(%edx)
-	leal	128(%edx), %edx
-	cmp	%edx, %ebx
+	movdqu	(%eax, %edi), %xmm0
+	movdqu	16(%eax, %edi), %xmm1
+	movdqu	32(%eax, %edi), %xmm2
+	movdqu	48(%eax, %edi), %xmm3
+	movntdq	%xmm0, (%edi)
+	movntdq	%xmm1, 16(%edi)
+	movntdq	%xmm2, 32(%edi)
+	movntdq	%xmm3, 48(%edi)
+	leal	64(%edi), %edi
+	cmp	%edi, %ebx
 	ja	L(mm_large_page_loop_forward)
 	sfence
-
-	addl	%edi, %ecx
-	subl	%edx, %ecx
-/* We copied all up till %edx position in the dst.
-	In %ecx now is how many bytes are left to copy.
-	Now we need to advance %esi. */
-	leal	(%edx, %eax), %esi
-
-	cmp	$64, %ecx
-	jb	L(mm_remaining_0_64_bytes_forward)
-
-	movdqu	(%esi), %xmm0
-	movdqu	16(%esi), %xmm1
-	movdqu	32(%esi), %xmm2
-	movdqu	48(%esi), %xmm3
-	movdqu	-64(%esi, %ecx), %xmm4
-	movdqu	-48(%esi, %ecx), %xmm5
-	movdqu	-32(%esi, %ecx), %xmm6
-	movdqu	-16(%esi, %ecx), %xmm7
-	movdqu	%xmm0, (%edx)
-	movdqu	%xmm1, 16(%edx)
-	movdqu	%xmm2, 32(%edx)
-	movdqu	%xmm3, 48(%edx)
-	movdqu	%xmm4, -64(%edx, %ecx)
-	movdqu	%xmm5, -48(%edx, %ecx)
-	movdqu	%xmm6, -32(%edx, %ecx)
-	movdqu	%xmm7, -16(%edx, %ecx)
-	jmp	L(mm_return_pop_all)
-
+	jmp	L(mm_copy_remaining_forward)
 
 /* Big length copy backward part.  */
-L(mm_large_page_backward):
-/* Aligning the address of destination. We need to save
-	16 bits from the source in order not to overwrite them.  */
-
-	PUSH (%esi)
-	PUSH (%edi)
-
-	movdqu	-16(%eax, %ecx), %xmm0
-	movdqu	-32(%eax, %ecx), %xmm1
-	movdqu	-48(%eax, %ecx), %xmm2
-	movdqu	-64(%eax, %ecx), %xmm3
-
-	leal	(%edx, %ecx), %edi
-	andl	$-64, %edi
-
-	movl	%eax, %esi
-	subl	%edx, %esi
-
-	movdqu	-16(%edi, %esi), %xmm4
-	movdqu	-32(%edi, %esi), %xmm5
-	movdqu	-48(%edi, %esi), %xmm6
-	movdqu	-64(%edi, %esi), %xmm7
-
-	movdqu	%xmm0, -16(%edx, %ecx)
-	movdqu	%xmm1, -32(%edx, %ecx)
-	movdqu	%xmm2, -48(%edx, %ecx)
-	movdqu	%xmm3, -64(%edx, %ecx)
-	movntdq	%xmm4, -16(%edi)
-	movntdq	%xmm5, -32(%edi)
-	movntdq	%xmm6, -48(%edi)
-	movntdq	%xmm7, -64(%edi)
-	leal	-64(%edi), %edi
-
-	leal	128(%edx), %ebx
-	andl	$-64, %ebx
-
-/* Compute in %ecx how many bytes are left to copy after
-	the main loop stops.  */
-	movl	%ebx, %ecx
-	subl	%edx, %ecx
-
-	cmp	%edi, %ebx
-	jae	L(mm_len_0_or_more_backward)
-
 	.p2align 4
 L(mm_large_page_loop_backward):
 	movdqu	-64(%edi, %esi), %xmm0
@@ -666,8 +534,9 @@
 	leal	-64(%edi), %edi
 	cmp	%edi, %ebx
 	jb	L(mm_large_page_loop_backward)
+	sfence
 	POP (%edi)
 	POP (%esi)
-	jmp	L(mm_len_0_or_more_backward)
+	jmp	L(mm_recalc_len)
 
 END (MEMMOVE)
diff --git a/libc/arch-x86/syscalls/__accept4.S b/libc/arch-x86/syscalls/__accept4.S
index 18a76a1..2d9cc42 100644
--- a/libc/arch-x86/syscalls/__accept4.S
+++ b/libc/arch-x86/syscalls/__accept4.S
@@ -20,7 +20,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ecx
     popl    %ebx
diff --git a/libc/arch-x86/syscalls/__brk.S b/libc/arch-x86/syscalls/__brk.S
index 2439752..632dfcf 100644
--- a/libc/arch-x86/syscalls/__brk.S
+++ b/libc/arch-x86/syscalls/__brk.S
@@ -15,7 +15,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ebx
     ret
diff --git a/libc/arch-x86/syscalls/__connect.S b/libc/arch-x86/syscalls/__connect.S
index 3149e8c..5ee4fbf 100644
--- a/libc/arch-x86/syscalls/__connect.S
+++ b/libc/arch-x86/syscalls/__connect.S
@@ -20,7 +20,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ecx
     popl    %ebx
diff --git a/libc/arch-x86/syscalls/__epoll_pwait.S b/libc/arch-x86/syscalls/__epoll_pwait.S
index 67545b1..641ca6d 100644
--- a/libc/arch-x86/syscalls/__epoll_pwait.S
+++ b/libc/arch-x86/syscalls/__epoll_pwait.S
@@ -35,7 +35,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ebp
     popl    %edi
diff --git a/libc/arch-x86/syscalls/__exit.S b/libc/arch-x86/syscalls/__exit.S
index d768306..8578f56 100644
--- a/libc/arch-x86/syscalls/__exit.S
+++ b/libc/arch-x86/syscalls/__exit.S
@@ -15,7 +15,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ebx
     ret
diff --git a/libc/arch-x86/syscalls/__fcntl64.S b/libc/arch-x86/syscalls/__fcntl64.S
index b2d5664..ef58d15 100644
--- a/libc/arch-x86/syscalls/__fcntl64.S
+++ b/libc/arch-x86/syscalls/__fcntl64.S
@@ -23,7 +23,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %edx
     popl    %ecx
diff --git a/libc/arch-x86/syscalls/__fstatfs64.S b/libc/arch-x86/syscalls/__fstatfs64.S
index d80ecc5..0ca3360 100644
--- a/libc/arch-x86/syscalls/__fstatfs64.S
+++ b/libc/arch-x86/syscalls/__fstatfs64.S
@@ -23,7 +23,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %edx
     popl    %ecx
diff --git a/libc/arch-x86/syscalls/__getcpu.S b/libc/arch-x86/syscalls/__getcpu.S
index 23ce3f0..b181877 100644
--- a/libc/arch-x86/syscalls/__getcpu.S
+++ b/libc/arch-x86/syscalls/__getcpu.S
@@ -23,7 +23,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %edx
     popl    %ecx
diff --git a/libc/arch-x86/syscalls/__getcwd.S b/libc/arch-x86/syscalls/__getcwd.S
index 5454d7a..b71ba0d 100644
--- a/libc/arch-x86/syscalls/__getcwd.S
+++ b/libc/arch-x86/syscalls/__getcwd.S
@@ -19,7 +19,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ecx
     popl    %ebx
diff --git a/libc/arch-x86/syscalls/__getpriority.S b/libc/arch-x86/syscalls/__getpriority.S
index 2d97f0d..103431d 100644
--- a/libc/arch-x86/syscalls/__getpriority.S
+++ b/libc/arch-x86/syscalls/__getpriority.S
@@ -19,7 +19,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ecx
     popl    %ebx
diff --git a/libc/arch-x86/syscalls/__ioctl.S b/libc/arch-x86/syscalls/__ioctl.S
index eb248fb..99d2d2c 100644
--- a/libc/arch-x86/syscalls/__ioctl.S
+++ b/libc/arch-x86/syscalls/__ioctl.S
@@ -23,7 +23,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %edx
     popl    %ecx
diff --git a/libc/arch-x86/syscalls/__llseek.S b/libc/arch-x86/syscalls/__llseek.S
index 7a1ea83..0cdb98a 100644
--- a/libc/arch-x86/syscalls/__llseek.S
+++ b/libc/arch-x86/syscalls/__llseek.S
@@ -31,7 +31,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %edi
     popl    %esi
diff --git a/libc/arch-x86/syscalls/__mmap2.S b/libc/arch-x86/syscalls/__mmap2.S
index 603ee2b..47131ef 100644
--- a/libc/arch-x86/syscalls/__mmap2.S
+++ b/libc/arch-x86/syscalls/__mmap2.S
@@ -35,7 +35,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ebp
     popl    %edi
diff --git a/libc/arch-x86/syscalls/__openat.S b/libc/arch-x86/syscalls/__openat.S
index a6db672..aec10e5 100644
--- a/libc/arch-x86/syscalls/__openat.S
+++ b/libc/arch-x86/syscalls/__openat.S
@@ -27,7 +27,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %esi
     popl    %edx
diff --git a/libc/arch-x86/syscalls/__ppoll.S b/libc/arch-x86/syscalls/__ppoll.S
index d8ac98a..92197b7 100644
--- a/libc/arch-x86/syscalls/__ppoll.S
+++ b/libc/arch-x86/syscalls/__ppoll.S
@@ -31,7 +31,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %edi
     popl    %esi
diff --git a/libc/arch-x86/syscalls/__pselect6.S b/libc/arch-x86/syscalls/__pselect6.S
index 9c66a3c..38402f0 100644
--- a/libc/arch-x86/syscalls/__pselect6.S
+++ b/libc/arch-x86/syscalls/__pselect6.S
@@ -35,7 +35,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ebp
     popl    %edi
diff --git a/libc/arch-x86/syscalls/__ptrace.S b/libc/arch-x86/syscalls/__ptrace.S
index 54e8221..cea5847 100644
--- a/libc/arch-x86/syscalls/__ptrace.S
+++ b/libc/arch-x86/syscalls/__ptrace.S
@@ -27,7 +27,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %esi
     popl    %edx
diff --git a/libc/arch-x86/syscalls/__reboot.S b/libc/arch-x86/syscalls/__reboot.S
index daea66e..4546994 100644
--- a/libc/arch-x86/syscalls/__reboot.S
+++ b/libc/arch-x86/syscalls/__reboot.S
@@ -27,7 +27,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %esi
     popl    %edx
diff --git a/libc/arch-x86/syscalls/__rt_sigaction.S b/libc/arch-x86/syscalls/__rt_sigaction.S
index d182a82..bfbe5ba 100644
--- a/libc/arch-x86/syscalls/__rt_sigaction.S
+++ b/libc/arch-x86/syscalls/__rt_sigaction.S
@@ -27,7 +27,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %esi
     popl    %edx
diff --git a/libc/arch-x86/syscalls/__rt_sigpending.S b/libc/arch-x86/syscalls/__rt_sigpending.S
index d83ccc0..dac478a 100644
--- a/libc/arch-x86/syscalls/__rt_sigpending.S
+++ b/libc/arch-x86/syscalls/__rt_sigpending.S
@@ -19,7 +19,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ecx
     popl    %ebx
diff --git a/libc/arch-x86/syscalls/__rt_sigprocmask.S b/libc/arch-x86/syscalls/__rt_sigprocmask.S
index 4ca9443..f112360 100644
--- a/libc/arch-x86/syscalls/__rt_sigprocmask.S
+++ b/libc/arch-x86/syscalls/__rt_sigprocmask.S
@@ -27,7 +27,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %esi
     popl    %edx
diff --git a/libc/arch-x86/syscalls/__rt_sigsuspend.S b/libc/arch-x86/syscalls/__rt_sigsuspend.S
index f1a4cf3..ef505c0 100644
--- a/libc/arch-x86/syscalls/__rt_sigsuspend.S
+++ b/libc/arch-x86/syscalls/__rt_sigsuspend.S
@@ -19,7 +19,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ecx
     popl    %ebx
diff --git a/libc/arch-x86/syscalls/__rt_sigtimedwait.S b/libc/arch-x86/syscalls/__rt_sigtimedwait.S
index 4fae0f7..d19c7db 100644
--- a/libc/arch-x86/syscalls/__rt_sigtimedwait.S
+++ b/libc/arch-x86/syscalls/__rt_sigtimedwait.S
@@ -27,7 +27,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %esi
     popl    %edx
diff --git a/libc/arch-x86/syscalls/__sched_getaffinity.S b/libc/arch-x86/syscalls/__sched_getaffinity.S
index bddbab5..e7cb8f1 100644
--- a/libc/arch-x86/syscalls/__sched_getaffinity.S
+++ b/libc/arch-x86/syscalls/__sched_getaffinity.S
@@ -23,7 +23,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %edx
     popl    %ecx
diff --git a/libc/arch-x86/syscalls/__set_thread_area.S b/libc/arch-x86/syscalls/__set_thread_area.S
index 0772ffe..dda23a0 100644
--- a/libc/arch-x86/syscalls/__set_thread_area.S
+++ b/libc/arch-x86/syscalls/__set_thread_area.S
@@ -15,7 +15,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ebx
     ret
diff --git a/libc/arch-x86/syscalls/__set_tid_address.S b/libc/arch-x86/syscalls/__set_tid_address.S
index e61c2ac..1566d9a 100644
--- a/libc/arch-x86/syscalls/__set_tid_address.S
+++ b/libc/arch-x86/syscalls/__set_tid_address.S
@@ -15,7 +15,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ebx
     ret
diff --git a/libc/arch-x86/syscalls/__sigaction.S b/libc/arch-x86/syscalls/__sigaction.S
index b4ca292..f1a51d2 100644
--- a/libc/arch-x86/syscalls/__sigaction.S
+++ b/libc/arch-x86/syscalls/__sigaction.S
@@ -23,7 +23,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %edx
     popl    %ecx
diff --git a/libc/arch-x86/syscalls/__signalfd4.S b/libc/arch-x86/syscalls/__signalfd4.S
index 1faafac..335e206 100644
--- a/libc/arch-x86/syscalls/__signalfd4.S
+++ b/libc/arch-x86/syscalls/__signalfd4.S
@@ -27,7 +27,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %esi
     popl    %edx
diff --git a/libc/arch-x86/syscalls/__socket.S b/libc/arch-x86/syscalls/__socket.S
index 2386b98..368680f 100644
--- a/libc/arch-x86/syscalls/__socket.S
+++ b/libc/arch-x86/syscalls/__socket.S
@@ -20,7 +20,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ecx
     popl    %ebx
diff --git a/libc/arch-x86/syscalls/__statfs64.S b/libc/arch-x86/syscalls/__statfs64.S
index 69dd87e..6bb9d99 100644
--- a/libc/arch-x86/syscalls/__statfs64.S
+++ b/libc/arch-x86/syscalls/__statfs64.S
@@ -23,7 +23,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %edx
     popl    %ecx
diff --git a/libc/arch-x86/syscalls/__timer_create.S b/libc/arch-x86/syscalls/__timer_create.S
index 520046f..3d28ae9 100644
--- a/libc/arch-x86/syscalls/__timer_create.S
+++ b/libc/arch-x86/syscalls/__timer_create.S
@@ -23,7 +23,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %edx
     popl    %ecx
diff --git a/libc/arch-x86/syscalls/__timer_delete.S b/libc/arch-x86/syscalls/__timer_delete.S
index 8fff727..7d64d6d 100644
--- a/libc/arch-x86/syscalls/__timer_delete.S
+++ b/libc/arch-x86/syscalls/__timer_delete.S
@@ -15,7 +15,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ebx
     ret
diff --git a/libc/arch-x86/syscalls/__timer_getoverrun.S b/libc/arch-x86/syscalls/__timer_getoverrun.S
index 372625b..cb37765 100644
--- a/libc/arch-x86/syscalls/__timer_getoverrun.S
+++ b/libc/arch-x86/syscalls/__timer_getoverrun.S
@@ -15,7 +15,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ebx
     ret
diff --git a/libc/arch-x86/syscalls/__timer_gettime.S b/libc/arch-x86/syscalls/__timer_gettime.S
index 9588bf7..5c43f4a 100644
--- a/libc/arch-x86/syscalls/__timer_gettime.S
+++ b/libc/arch-x86/syscalls/__timer_gettime.S
@@ -19,7 +19,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ecx
     popl    %ebx
diff --git a/libc/arch-x86/syscalls/__timer_settime.S b/libc/arch-x86/syscalls/__timer_settime.S
index 7b0ab43..da7c587 100644
--- a/libc/arch-x86/syscalls/__timer_settime.S
+++ b/libc/arch-x86/syscalls/__timer_settime.S
@@ -27,7 +27,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %esi
     popl    %edx
diff --git a/libc/arch-x86/syscalls/__waitid.S b/libc/arch-x86/syscalls/__waitid.S
index 7e63f8a..7e3ecdd 100644
--- a/libc/arch-x86/syscalls/__waitid.S
+++ b/libc/arch-x86/syscalls/__waitid.S
@@ -31,7 +31,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %edi
     popl    %esi
diff --git a/libc/arch-x86/syscalls/_exit.S b/libc/arch-x86/syscalls/_exit.S
index 5b569b9..36e884a 100644
--- a/libc/arch-x86/syscalls/_exit.S
+++ b/libc/arch-x86/syscalls/_exit.S
@@ -15,7 +15,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ebx
     ret
diff --git a/libc/arch-x86/syscalls/acct.S b/libc/arch-x86/syscalls/acct.S
index 7fa4508..a036114 100644
--- a/libc/arch-x86/syscalls/acct.S
+++ b/libc/arch-x86/syscalls/acct.S
@@ -15,7 +15,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ebx
     ret
diff --git a/libc/arch-x86/syscalls/bind.S b/libc/arch-x86/syscalls/bind.S
index c99ada1..ab5a29e 100644
--- a/libc/arch-x86/syscalls/bind.S
+++ b/libc/arch-x86/syscalls/bind.S
@@ -20,7 +20,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ecx
     popl    %ebx
diff --git a/libc/arch-x86/syscalls/capget.S b/libc/arch-x86/syscalls/capget.S
index 82065cf..5441e49 100644
--- a/libc/arch-x86/syscalls/capget.S
+++ b/libc/arch-x86/syscalls/capget.S
@@ -19,7 +19,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ecx
     popl    %ebx
diff --git a/libc/arch-x86/syscalls/capset.S b/libc/arch-x86/syscalls/capset.S
index 8c9367f..d04e411 100644
--- a/libc/arch-x86/syscalls/capset.S
+++ b/libc/arch-x86/syscalls/capset.S
@@ -19,7 +19,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ecx
     popl    %ebx
diff --git a/libc/arch-x86/syscalls/chdir.S b/libc/arch-x86/syscalls/chdir.S
index 00986d4..d32a0bd 100644
--- a/libc/arch-x86/syscalls/chdir.S
+++ b/libc/arch-x86/syscalls/chdir.S
@@ -15,7 +15,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ebx
     ret
diff --git a/libc/arch-x86/syscalls/chroot.S b/libc/arch-x86/syscalls/chroot.S
index cb8a099..63d7e00 100644
--- a/libc/arch-x86/syscalls/chroot.S
+++ b/libc/arch-x86/syscalls/chroot.S
@@ -15,7 +15,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ebx
     ret
diff --git a/libc/arch-x86/syscalls/clock_getres.S b/libc/arch-x86/syscalls/clock_getres.S
index 5fef51a..321299c 100644
--- a/libc/arch-x86/syscalls/clock_getres.S
+++ b/libc/arch-x86/syscalls/clock_getres.S
@@ -19,7 +19,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ecx
     popl    %ebx
diff --git a/libc/arch-x86/syscalls/clock_gettime.S b/libc/arch-x86/syscalls/clock_gettime.S
index 4275edc..54f769a 100644
--- a/libc/arch-x86/syscalls/clock_gettime.S
+++ b/libc/arch-x86/syscalls/clock_gettime.S
@@ -19,7 +19,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ecx
     popl    %ebx
diff --git a/libc/arch-x86/syscalls/clock_nanosleep.S b/libc/arch-x86/syscalls/clock_nanosleep.S
index 1f0fcc6..ca961c0 100644
--- a/libc/arch-x86/syscalls/clock_nanosleep.S
+++ b/libc/arch-x86/syscalls/clock_nanosleep.S
@@ -27,7 +27,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %esi
     popl    %edx
diff --git a/libc/arch-x86/syscalls/clock_settime.S b/libc/arch-x86/syscalls/clock_settime.S
index 4f59a10..ab8c43e 100644
--- a/libc/arch-x86/syscalls/clock_settime.S
+++ b/libc/arch-x86/syscalls/clock_settime.S
@@ -19,7 +19,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ecx
     popl    %ebx
diff --git a/libc/arch-x86/syscalls/close.S b/libc/arch-x86/syscalls/close.S
index 3f4e034..0b3e73a 100644
--- a/libc/arch-x86/syscalls/close.S
+++ b/libc/arch-x86/syscalls/close.S
@@ -15,7 +15,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ebx
     ret
diff --git a/libc/arch-x86/syscalls/delete_module.S b/libc/arch-x86/syscalls/delete_module.S
index 8923f46..757c8c1 100644
--- a/libc/arch-x86/syscalls/delete_module.S
+++ b/libc/arch-x86/syscalls/delete_module.S
@@ -19,7 +19,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ecx
     popl    %ebx
diff --git a/libc/arch-x86/syscalls/dup.S b/libc/arch-x86/syscalls/dup.S
index ed922de..64e1538 100644
--- a/libc/arch-x86/syscalls/dup.S
+++ b/libc/arch-x86/syscalls/dup.S
@@ -15,7 +15,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ebx
     ret
diff --git a/libc/arch-x86/syscalls/dup3.S b/libc/arch-x86/syscalls/dup3.S
index d1a714d..a0ecd19 100644
--- a/libc/arch-x86/syscalls/dup3.S
+++ b/libc/arch-x86/syscalls/dup3.S
@@ -23,7 +23,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %edx
     popl    %ecx
diff --git a/libc/arch-x86/syscalls/epoll_create1.S b/libc/arch-x86/syscalls/epoll_create1.S
index 69ddd9b..5b6a1ba 100644
--- a/libc/arch-x86/syscalls/epoll_create1.S
+++ b/libc/arch-x86/syscalls/epoll_create1.S
@@ -15,7 +15,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ebx
     ret
diff --git a/libc/arch-x86/syscalls/epoll_ctl.S b/libc/arch-x86/syscalls/epoll_ctl.S
index 2a50db8..3fd8acd 100644
--- a/libc/arch-x86/syscalls/epoll_ctl.S
+++ b/libc/arch-x86/syscalls/epoll_ctl.S
@@ -27,7 +27,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %esi
     popl    %edx
diff --git a/libc/arch-x86/syscalls/eventfd.S b/libc/arch-x86/syscalls/eventfd.S
index 48a07a2..55c5e6a 100644
--- a/libc/arch-x86/syscalls/eventfd.S
+++ b/libc/arch-x86/syscalls/eventfd.S
@@ -19,7 +19,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ecx
     popl    %ebx
diff --git a/libc/arch-x86/syscalls/execve.S b/libc/arch-x86/syscalls/execve.S
index 345b5a4..7ad54f7 100644
--- a/libc/arch-x86/syscalls/execve.S
+++ b/libc/arch-x86/syscalls/execve.S
@@ -23,7 +23,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %edx
     popl    %ecx
diff --git a/libc/arch-x86/syscalls/faccessat.S b/libc/arch-x86/syscalls/faccessat.S
index 1f340f7..115d645 100644
--- a/libc/arch-x86/syscalls/faccessat.S
+++ b/libc/arch-x86/syscalls/faccessat.S
@@ -27,7 +27,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %esi
     popl    %edx
diff --git a/libc/arch-x86/syscalls/fallocate64.S b/libc/arch-x86/syscalls/fallocate64.S
index be3d45b..f8bde62 100644
--- a/libc/arch-x86/syscalls/fallocate64.S
+++ b/libc/arch-x86/syscalls/fallocate64.S
@@ -35,7 +35,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ebp
     popl    %edi
diff --git a/libc/arch-x86/syscalls/fchdir.S b/libc/arch-x86/syscalls/fchdir.S
index da95c0b..56e496c 100644
--- a/libc/arch-x86/syscalls/fchdir.S
+++ b/libc/arch-x86/syscalls/fchdir.S
@@ -15,7 +15,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ebx
     ret
diff --git a/libc/arch-x86/syscalls/fchmod.S b/libc/arch-x86/syscalls/fchmod.S
index fe189f4..4badcea 100644
--- a/libc/arch-x86/syscalls/fchmod.S
+++ b/libc/arch-x86/syscalls/fchmod.S
@@ -19,7 +19,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ecx
     popl    %ebx
diff --git a/libc/arch-x86/syscalls/fchmodat.S b/libc/arch-x86/syscalls/fchmodat.S
index 794450b..552e85c 100644
--- a/libc/arch-x86/syscalls/fchmodat.S
+++ b/libc/arch-x86/syscalls/fchmodat.S
@@ -27,7 +27,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %esi
     popl    %edx
diff --git a/libc/arch-x86/syscalls/fchown.S b/libc/arch-x86/syscalls/fchown.S
index 5e82388..7e82637 100644
--- a/libc/arch-x86/syscalls/fchown.S
+++ b/libc/arch-x86/syscalls/fchown.S
@@ -23,7 +23,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %edx
     popl    %ecx
diff --git a/libc/arch-x86/syscalls/fchownat.S b/libc/arch-x86/syscalls/fchownat.S
index bfe61e9..de039d0 100644
--- a/libc/arch-x86/syscalls/fchownat.S
+++ b/libc/arch-x86/syscalls/fchownat.S
@@ -31,7 +31,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %edi
     popl    %esi
diff --git a/libc/arch-x86/syscalls/fdatasync.S b/libc/arch-x86/syscalls/fdatasync.S
index 17846ce..fdb5578 100644
--- a/libc/arch-x86/syscalls/fdatasync.S
+++ b/libc/arch-x86/syscalls/fdatasync.S
@@ -15,7 +15,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ebx
     ret
diff --git a/libc/arch-x86/syscalls/fgetxattr.S b/libc/arch-x86/syscalls/fgetxattr.S
index 335d298..3ed63d3 100644
--- a/libc/arch-x86/syscalls/fgetxattr.S
+++ b/libc/arch-x86/syscalls/fgetxattr.S
@@ -27,7 +27,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %esi
     popl    %edx
diff --git a/libc/arch-x86/syscalls/flistxattr.S b/libc/arch-x86/syscalls/flistxattr.S
index 5cab5ad..2840114 100644
--- a/libc/arch-x86/syscalls/flistxattr.S
+++ b/libc/arch-x86/syscalls/flistxattr.S
@@ -23,7 +23,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %edx
     popl    %ecx
diff --git a/libc/arch-x86/syscalls/flock.S b/libc/arch-x86/syscalls/flock.S
index 277dd2a..dc9ef02 100644
--- a/libc/arch-x86/syscalls/flock.S
+++ b/libc/arch-x86/syscalls/flock.S
@@ -19,7 +19,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ecx
     popl    %ebx
diff --git a/libc/arch-x86/syscalls/fremovexattr.S b/libc/arch-x86/syscalls/fremovexattr.S
index a60e031..1e77f82 100644
--- a/libc/arch-x86/syscalls/fremovexattr.S
+++ b/libc/arch-x86/syscalls/fremovexattr.S
@@ -19,7 +19,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ecx
     popl    %ebx
diff --git a/libc/arch-x86/syscalls/fsetxattr.S b/libc/arch-x86/syscalls/fsetxattr.S
index c4d4854..703a8d7 100644
--- a/libc/arch-x86/syscalls/fsetxattr.S
+++ b/libc/arch-x86/syscalls/fsetxattr.S
@@ -31,7 +31,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %edi
     popl    %esi
diff --git a/libc/arch-x86/syscalls/fstat64.S b/libc/arch-x86/syscalls/fstat64.S
index 054f6de..970eeb1 100644
--- a/libc/arch-x86/syscalls/fstat64.S
+++ b/libc/arch-x86/syscalls/fstat64.S
@@ -19,7 +19,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ecx
     popl    %ebx
diff --git a/libc/arch-x86/syscalls/fstatat64.S b/libc/arch-x86/syscalls/fstatat64.S
index 928d071..476578d 100644
--- a/libc/arch-x86/syscalls/fstatat64.S
+++ b/libc/arch-x86/syscalls/fstatat64.S
@@ -27,7 +27,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %esi
     popl    %edx
diff --git a/libc/arch-x86/syscalls/fsync.S b/libc/arch-x86/syscalls/fsync.S
index f12d010..9fc84b7 100644
--- a/libc/arch-x86/syscalls/fsync.S
+++ b/libc/arch-x86/syscalls/fsync.S
@@ -15,7 +15,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ebx
     ret
diff --git a/libc/arch-x86/syscalls/ftruncate.S b/libc/arch-x86/syscalls/ftruncate.S
index 062982c..6765d98 100644
--- a/libc/arch-x86/syscalls/ftruncate.S
+++ b/libc/arch-x86/syscalls/ftruncate.S
@@ -19,7 +19,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ecx
     popl    %ebx
diff --git a/libc/arch-x86/syscalls/ftruncate64.S b/libc/arch-x86/syscalls/ftruncate64.S
index 71920be..21e26ce 100644
--- a/libc/arch-x86/syscalls/ftruncate64.S
+++ b/libc/arch-x86/syscalls/ftruncate64.S
@@ -23,7 +23,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %edx
     popl    %ecx
diff --git a/libc/arch-x86/syscalls/getdents.S b/libc/arch-x86/syscalls/getdents.S
index 0b045b2..0627532 100644
--- a/libc/arch-x86/syscalls/getdents.S
+++ b/libc/arch-x86/syscalls/getdents.S
@@ -23,7 +23,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %edx
     popl    %ecx
diff --git a/libc/arch-x86/syscalls/getegid.S b/libc/arch-x86/syscalls/getegid.S
index 61e7839..445cd97 100644
--- a/libc/arch-x86/syscalls/getegid.S
+++ b/libc/arch-x86/syscalls/getegid.S
@@ -11,7 +11,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     ret
 END(getegid)
diff --git a/libc/arch-x86/syscalls/geteuid.S b/libc/arch-x86/syscalls/geteuid.S
index 80bcf7a..8290a93 100644
--- a/libc/arch-x86/syscalls/geteuid.S
+++ b/libc/arch-x86/syscalls/geteuid.S
@@ -11,7 +11,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     ret
 END(geteuid)
diff --git a/libc/arch-x86/syscalls/getgid.S b/libc/arch-x86/syscalls/getgid.S
index 87d31a7..d90767f 100644
--- a/libc/arch-x86/syscalls/getgid.S
+++ b/libc/arch-x86/syscalls/getgid.S
@@ -11,7 +11,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     ret
 END(getgid)
diff --git a/libc/arch-x86/syscalls/getgroups.S b/libc/arch-x86/syscalls/getgroups.S
index d9b7d80..d36c09c 100644
--- a/libc/arch-x86/syscalls/getgroups.S
+++ b/libc/arch-x86/syscalls/getgroups.S
@@ -19,7 +19,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ecx
     popl    %ebx
diff --git a/libc/arch-x86/syscalls/getitimer.S b/libc/arch-x86/syscalls/getitimer.S
index 8f3a0ee..ebf1260 100644
--- a/libc/arch-x86/syscalls/getitimer.S
+++ b/libc/arch-x86/syscalls/getitimer.S
@@ -19,7 +19,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ecx
     popl    %ebx
diff --git a/libc/arch-x86/syscalls/getpeername.S b/libc/arch-x86/syscalls/getpeername.S
index 1ea42a0..abecd4e 100644
--- a/libc/arch-x86/syscalls/getpeername.S
+++ b/libc/arch-x86/syscalls/getpeername.S
@@ -20,7 +20,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ecx
     popl    %ebx
diff --git a/libc/arch-x86/syscalls/getpgid.S b/libc/arch-x86/syscalls/getpgid.S
index 179c7db..e74ed3b 100644
--- a/libc/arch-x86/syscalls/getpgid.S
+++ b/libc/arch-x86/syscalls/getpgid.S
@@ -15,7 +15,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ebx
     ret
diff --git a/libc/arch-x86/syscalls/getpid.S b/libc/arch-x86/syscalls/getpid.S
index cecaf74..0e12d5a 100644
--- a/libc/arch-x86/syscalls/getpid.S
+++ b/libc/arch-x86/syscalls/getpid.S
@@ -11,7 +11,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     ret
 END(getpid)
diff --git a/libc/arch-x86/syscalls/getppid.S b/libc/arch-x86/syscalls/getppid.S
index b932044..025fa42 100644
--- a/libc/arch-x86/syscalls/getppid.S
+++ b/libc/arch-x86/syscalls/getppid.S
@@ -11,7 +11,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     ret
 END(getppid)
diff --git a/libc/arch-x86/syscalls/getresgid.S b/libc/arch-x86/syscalls/getresgid.S
index ce8d89a..fe08cdf 100644
--- a/libc/arch-x86/syscalls/getresgid.S
+++ b/libc/arch-x86/syscalls/getresgid.S
@@ -23,7 +23,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %edx
     popl    %ecx
diff --git a/libc/arch-x86/syscalls/getresuid.S b/libc/arch-x86/syscalls/getresuid.S
index f444d16..8e292fc 100644
--- a/libc/arch-x86/syscalls/getresuid.S
+++ b/libc/arch-x86/syscalls/getresuid.S
@@ -23,7 +23,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %edx
     popl    %ecx
diff --git a/libc/arch-x86/syscalls/getrlimit.S b/libc/arch-x86/syscalls/getrlimit.S
index 66f4e6f..fdb5a03 100644
--- a/libc/arch-x86/syscalls/getrlimit.S
+++ b/libc/arch-x86/syscalls/getrlimit.S
@@ -19,7 +19,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ecx
     popl    %ebx
diff --git a/libc/arch-x86/syscalls/getrusage.S b/libc/arch-x86/syscalls/getrusage.S
index 8d4fd7b..ae5f796 100644
--- a/libc/arch-x86/syscalls/getrusage.S
+++ b/libc/arch-x86/syscalls/getrusage.S
@@ -19,7 +19,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ecx
     popl    %ebx
diff --git a/libc/arch-x86/syscalls/getsid.S b/libc/arch-x86/syscalls/getsid.S
index 39e5551..e1dc87f 100644
--- a/libc/arch-x86/syscalls/getsid.S
+++ b/libc/arch-x86/syscalls/getsid.S
@@ -15,7 +15,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ebx
     ret
diff --git a/libc/arch-x86/syscalls/getsockname.S b/libc/arch-x86/syscalls/getsockname.S
index ec0cc84..254b755 100644
--- a/libc/arch-x86/syscalls/getsockname.S
+++ b/libc/arch-x86/syscalls/getsockname.S
@@ -20,7 +20,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ecx
     popl    %ebx
diff --git a/libc/arch-x86/syscalls/getsockopt.S b/libc/arch-x86/syscalls/getsockopt.S
index cf109f1..2ef630c 100644
--- a/libc/arch-x86/syscalls/getsockopt.S
+++ b/libc/arch-x86/syscalls/getsockopt.S
@@ -20,7 +20,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ecx
     popl    %ebx
diff --git a/libc/arch-x86/syscalls/gettimeofday.S b/libc/arch-x86/syscalls/gettimeofday.S
index 801e7ab..709a17b 100644
--- a/libc/arch-x86/syscalls/gettimeofday.S
+++ b/libc/arch-x86/syscalls/gettimeofday.S
@@ -19,7 +19,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ecx
     popl    %ebx
diff --git a/libc/arch-x86/syscalls/getuid.S b/libc/arch-x86/syscalls/getuid.S
index e91305a..c375d30 100644
--- a/libc/arch-x86/syscalls/getuid.S
+++ b/libc/arch-x86/syscalls/getuid.S
@@ -11,7 +11,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     ret
 END(getuid)
diff --git a/libc/arch-x86/syscalls/getxattr.S b/libc/arch-x86/syscalls/getxattr.S
index 5bd1ab8..db9c9dd 100644
--- a/libc/arch-x86/syscalls/getxattr.S
+++ b/libc/arch-x86/syscalls/getxattr.S
@@ -27,7 +27,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %esi
     popl    %edx
diff --git a/libc/arch-x86/syscalls/init_module.S b/libc/arch-x86/syscalls/init_module.S
index 8afd644..543b31e 100644
--- a/libc/arch-x86/syscalls/init_module.S
+++ b/libc/arch-x86/syscalls/init_module.S
@@ -23,7 +23,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %edx
     popl    %ecx
diff --git a/libc/arch-x86/syscalls/inotify_add_watch.S b/libc/arch-x86/syscalls/inotify_add_watch.S
index 0de8f88..f58c6d1 100644
--- a/libc/arch-x86/syscalls/inotify_add_watch.S
+++ b/libc/arch-x86/syscalls/inotify_add_watch.S
@@ -23,7 +23,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %edx
     popl    %ecx
diff --git a/libc/arch-x86/syscalls/inotify_init1.S b/libc/arch-x86/syscalls/inotify_init1.S
index 0920618..2c7b100 100644
--- a/libc/arch-x86/syscalls/inotify_init1.S
+++ b/libc/arch-x86/syscalls/inotify_init1.S
@@ -15,7 +15,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ebx
     ret
diff --git a/libc/arch-x86/syscalls/inotify_rm_watch.S b/libc/arch-x86/syscalls/inotify_rm_watch.S
index 37394c5..c453478 100644
--- a/libc/arch-x86/syscalls/inotify_rm_watch.S
+++ b/libc/arch-x86/syscalls/inotify_rm_watch.S
@@ -19,7 +19,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ecx
     popl    %ebx
diff --git a/libc/arch-x86/syscalls/ioprio_get.S b/libc/arch-x86/syscalls/ioprio_get.S
index ff78773..491c2f3 100644
--- a/libc/arch-x86/syscalls/ioprio_get.S
+++ b/libc/arch-x86/syscalls/ioprio_get.S
@@ -19,7 +19,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ecx
     popl    %ebx
diff --git a/libc/arch-x86/syscalls/ioprio_set.S b/libc/arch-x86/syscalls/ioprio_set.S
index 7a3e919..e80602c 100644
--- a/libc/arch-x86/syscalls/ioprio_set.S
+++ b/libc/arch-x86/syscalls/ioprio_set.S
@@ -23,7 +23,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %edx
     popl    %ecx
diff --git a/libc/arch-x86/syscalls/kill.S b/libc/arch-x86/syscalls/kill.S
index fbf5fa8..0c1e24a 100644
--- a/libc/arch-x86/syscalls/kill.S
+++ b/libc/arch-x86/syscalls/kill.S
@@ -19,7 +19,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ecx
     popl    %ebx
diff --git a/libc/arch-x86/syscalls/klogctl.S b/libc/arch-x86/syscalls/klogctl.S
index 03f24b8..869324a 100644
--- a/libc/arch-x86/syscalls/klogctl.S
+++ b/libc/arch-x86/syscalls/klogctl.S
@@ -23,7 +23,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %edx
     popl    %ecx
diff --git a/libc/arch-x86/syscalls/lgetxattr.S b/libc/arch-x86/syscalls/lgetxattr.S
index 6ee2c55..3ed4f11 100644
--- a/libc/arch-x86/syscalls/lgetxattr.S
+++ b/libc/arch-x86/syscalls/lgetxattr.S
@@ -27,7 +27,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %esi
     popl    %edx
diff --git a/libc/arch-x86/syscalls/linkat.S b/libc/arch-x86/syscalls/linkat.S
index d9876eb..e0c7e5f 100644
--- a/libc/arch-x86/syscalls/linkat.S
+++ b/libc/arch-x86/syscalls/linkat.S
@@ -31,7 +31,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %edi
     popl    %esi
diff --git a/libc/arch-x86/syscalls/listen.S b/libc/arch-x86/syscalls/listen.S
index b671b25..c65f970 100644
--- a/libc/arch-x86/syscalls/listen.S
+++ b/libc/arch-x86/syscalls/listen.S
@@ -20,7 +20,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ecx
     popl    %ebx
diff --git a/libc/arch-x86/syscalls/listxattr.S b/libc/arch-x86/syscalls/listxattr.S
index e86b82e..98a5114 100644
--- a/libc/arch-x86/syscalls/listxattr.S
+++ b/libc/arch-x86/syscalls/listxattr.S
@@ -23,7 +23,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %edx
     popl    %ecx
diff --git a/libc/arch-x86/syscalls/llistxattr.S b/libc/arch-x86/syscalls/llistxattr.S
index 8d13da8..a5ab636 100644
--- a/libc/arch-x86/syscalls/llistxattr.S
+++ b/libc/arch-x86/syscalls/llistxattr.S
@@ -23,7 +23,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %edx
     popl    %ecx
diff --git a/libc/arch-x86/syscalls/lremovexattr.S b/libc/arch-x86/syscalls/lremovexattr.S
index 9dab0a3..508abba 100644
--- a/libc/arch-x86/syscalls/lremovexattr.S
+++ b/libc/arch-x86/syscalls/lremovexattr.S
@@ -19,7 +19,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ecx
     popl    %ebx
diff --git a/libc/arch-x86/syscalls/lseek.S b/libc/arch-x86/syscalls/lseek.S
index 2d03f46..5f77831 100644
--- a/libc/arch-x86/syscalls/lseek.S
+++ b/libc/arch-x86/syscalls/lseek.S
@@ -23,7 +23,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %edx
     popl    %ecx
diff --git a/libc/arch-x86/syscalls/lsetxattr.S b/libc/arch-x86/syscalls/lsetxattr.S
index 1452298..d878684 100644
--- a/libc/arch-x86/syscalls/lsetxattr.S
+++ b/libc/arch-x86/syscalls/lsetxattr.S
@@ -31,7 +31,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %edi
     popl    %esi
diff --git a/libc/arch-x86/syscalls/madvise.S b/libc/arch-x86/syscalls/madvise.S
index fd4af11..3e8c7fd 100644
--- a/libc/arch-x86/syscalls/madvise.S
+++ b/libc/arch-x86/syscalls/madvise.S
@@ -23,7 +23,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %edx
     popl    %ecx
diff --git a/libc/arch-x86/syscalls/mincore.S b/libc/arch-x86/syscalls/mincore.S
index 01eb519..7096f6c 100644
--- a/libc/arch-x86/syscalls/mincore.S
+++ b/libc/arch-x86/syscalls/mincore.S
@@ -23,7 +23,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %edx
     popl    %ecx
diff --git a/libc/arch-x86/syscalls/mkdirat.S b/libc/arch-x86/syscalls/mkdirat.S
index b022838..862a18c 100644
--- a/libc/arch-x86/syscalls/mkdirat.S
+++ b/libc/arch-x86/syscalls/mkdirat.S
@@ -23,7 +23,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %edx
     popl    %ecx
diff --git a/libc/arch-x86/syscalls/mknodat.S b/libc/arch-x86/syscalls/mknodat.S
index 233c0b2..e03ba42 100644
--- a/libc/arch-x86/syscalls/mknodat.S
+++ b/libc/arch-x86/syscalls/mknodat.S
@@ -27,7 +27,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %esi
     popl    %edx
diff --git a/libc/arch-x86/syscalls/mlock.S b/libc/arch-x86/syscalls/mlock.S
index fb4641f..f582f77 100644
--- a/libc/arch-x86/syscalls/mlock.S
+++ b/libc/arch-x86/syscalls/mlock.S
@@ -19,7 +19,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ecx
     popl    %ebx
diff --git a/libc/arch-x86/syscalls/mlockall.S b/libc/arch-x86/syscalls/mlockall.S
index 9403351..becca81 100644
--- a/libc/arch-x86/syscalls/mlockall.S
+++ b/libc/arch-x86/syscalls/mlockall.S
@@ -15,7 +15,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ebx
     ret
diff --git a/libc/arch-x86/syscalls/mount.S b/libc/arch-x86/syscalls/mount.S
index d99f5f4..7be2811 100644
--- a/libc/arch-x86/syscalls/mount.S
+++ b/libc/arch-x86/syscalls/mount.S
@@ -31,7 +31,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %edi
     popl    %esi
diff --git a/libc/arch-x86/syscalls/mprotect.S b/libc/arch-x86/syscalls/mprotect.S
index 3205f83..0516c45 100644
--- a/libc/arch-x86/syscalls/mprotect.S
+++ b/libc/arch-x86/syscalls/mprotect.S
@@ -23,7 +23,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %edx
     popl    %ecx
diff --git a/libc/arch-x86/syscalls/mremap.S b/libc/arch-x86/syscalls/mremap.S
index 2b20079..42e75ce 100644
--- a/libc/arch-x86/syscalls/mremap.S
+++ b/libc/arch-x86/syscalls/mremap.S
@@ -27,7 +27,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %esi
     popl    %edx
diff --git a/libc/arch-x86/syscalls/msync.S b/libc/arch-x86/syscalls/msync.S
index 339e381..66722f2 100644
--- a/libc/arch-x86/syscalls/msync.S
+++ b/libc/arch-x86/syscalls/msync.S
@@ -23,7 +23,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %edx
     popl    %ecx
diff --git a/libc/arch-x86/syscalls/munlock.S b/libc/arch-x86/syscalls/munlock.S
index 5fb29cb..2fc3aa7 100644
--- a/libc/arch-x86/syscalls/munlock.S
+++ b/libc/arch-x86/syscalls/munlock.S
@@ -19,7 +19,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ecx
     popl    %ebx
diff --git a/libc/arch-x86/syscalls/munlockall.S b/libc/arch-x86/syscalls/munlockall.S
index 238f812..1bc99ea 100644
--- a/libc/arch-x86/syscalls/munlockall.S
+++ b/libc/arch-x86/syscalls/munlockall.S
@@ -11,7 +11,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     ret
 END(munlockall)
diff --git a/libc/arch-x86/syscalls/munmap.S b/libc/arch-x86/syscalls/munmap.S
index 2d348db..878aae7 100644
--- a/libc/arch-x86/syscalls/munmap.S
+++ b/libc/arch-x86/syscalls/munmap.S
@@ -19,7 +19,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ecx
     popl    %ebx
diff --git a/libc/arch-x86/syscalls/nanosleep.S b/libc/arch-x86/syscalls/nanosleep.S
index 9d8ae9d..fe8af90 100644
--- a/libc/arch-x86/syscalls/nanosleep.S
+++ b/libc/arch-x86/syscalls/nanosleep.S
@@ -19,7 +19,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ecx
     popl    %ebx
diff --git a/libc/arch-x86/syscalls/personality.S b/libc/arch-x86/syscalls/personality.S
index 412bbed..8c8e0ff 100644
--- a/libc/arch-x86/syscalls/personality.S
+++ b/libc/arch-x86/syscalls/personality.S
@@ -15,7 +15,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ebx
     ret
diff --git a/libc/arch-x86/syscalls/pipe2.S b/libc/arch-x86/syscalls/pipe2.S
index bfe03a2..99c4e8b 100644
--- a/libc/arch-x86/syscalls/pipe2.S
+++ b/libc/arch-x86/syscalls/pipe2.S
@@ -19,7 +19,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ecx
     popl    %ebx
diff --git a/libc/arch-x86/syscalls/prctl.S b/libc/arch-x86/syscalls/prctl.S
index fca343f..63ec899 100644
--- a/libc/arch-x86/syscalls/prctl.S
+++ b/libc/arch-x86/syscalls/prctl.S
@@ -31,7 +31,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %edi
     popl    %esi
diff --git a/libc/arch-x86/syscalls/pread64.S b/libc/arch-x86/syscalls/pread64.S
index 6cf4e4b..6b3c8ad 100644
--- a/libc/arch-x86/syscalls/pread64.S
+++ b/libc/arch-x86/syscalls/pread64.S
@@ -31,7 +31,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %edi
     popl    %esi
diff --git a/libc/arch-x86/syscalls/prlimit64.S b/libc/arch-x86/syscalls/prlimit64.S
index 65316a7..6aa875f 100644
--- a/libc/arch-x86/syscalls/prlimit64.S
+++ b/libc/arch-x86/syscalls/prlimit64.S
@@ -27,7 +27,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %esi
     popl    %edx
diff --git a/libc/arch-x86/syscalls/pwrite64.S b/libc/arch-x86/syscalls/pwrite64.S
index cccea8b..7d53095 100644
--- a/libc/arch-x86/syscalls/pwrite64.S
+++ b/libc/arch-x86/syscalls/pwrite64.S
@@ -31,7 +31,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %edi
     popl    %esi
diff --git a/libc/arch-x86/syscalls/read.S b/libc/arch-x86/syscalls/read.S
index f80db31..9814c8f 100644
--- a/libc/arch-x86/syscalls/read.S
+++ b/libc/arch-x86/syscalls/read.S
@@ -23,7 +23,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %edx
     popl    %ecx
diff --git a/libc/arch-x86/syscalls/readahead.S b/libc/arch-x86/syscalls/readahead.S
index f53769a..49a17d0 100644
--- a/libc/arch-x86/syscalls/readahead.S
+++ b/libc/arch-x86/syscalls/readahead.S
@@ -27,7 +27,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %esi
     popl    %edx
diff --git a/libc/arch-x86/syscalls/readlinkat.S b/libc/arch-x86/syscalls/readlinkat.S
index 229dafe..1a161c0 100644
--- a/libc/arch-x86/syscalls/readlinkat.S
+++ b/libc/arch-x86/syscalls/readlinkat.S
@@ -27,7 +27,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %esi
     popl    %edx
diff --git a/libc/arch-x86/syscalls/readv.S b/libc/arch-x86/syscalls/readv.S
index 8cb01a0..8b5ff41 100644
--- a/libc/arch-x86/syscalls/readv.S
+++ b/libc/arch-x86/syscalls/readv.S
@@ -23,7 +23,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %edx
     popl    %ecx
diff --git a/libc/arch-x86/syscalls/recvfrom.S b/libc/arch-x86/syscalls/recvfrom.S
index dd99a09..53d08f6 100644
--- a/libc/arch-x86/syscalls/recvfrom.S
+++ b/libc/arch-x86/syscalls/recvfrom.S
@@ -20,7 +20,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ecx
     popl    %ebx
diff --git a/libc/arch-x86/syscalls/recvmmsg.S b/libc/arch-x86/syscalls/recvmmsg.S
index f916fcd..3ef8740 100644
--- a/libc/arch-x86/syscalls/recvmmsg.S
+++ b/libc/arch-x86/syscalls/recvmmsg.S
@@ -20,7 +20,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ecx
     popl    %ebx
diff --git a/libc/arch-x86/syscalls/recvmsg.S b/libc/arch-x86/syscalls/recvmsg.S
index 12dad28..150672d 100644
--- a/libc/arch-x86/syscalls/recvmsg.S
+++ b/libc/arch-x86/syscalls/recvmsg.S
@@ -20,7 +20,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ecx
     popl    %ebx
diff --git a/libc/arch-x86/syscalls/removexattr.S b/libc/arch-x86/syscalls/removexattr.S
index 3974a07..e7c55eb 100644
--- a/libc/arch-x86/syscalls/removexattr.S
+++ b/libc/arch-x86/syscalls/removexattr.S
@@ -19,7 +19,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ecx
     popl    %ebx
diff --git a/libc/arch-x86/syscalls/renameat.S b/libc/arch-x86/syscalls/renameat.S
index 2982f51..5dfe65f 100644
--- a/libc/arch-x86/syscalls/renameat.S
+++ b/libc/arch-x86/syscalls/renameat.S
@@ -27,7 +27,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %esi
     popl    %edx
diff --git a/libc/arch-x86/syscalls/sched_get_priority_max.S b/libc/arch-x86/syscalls/sched_get_priority_max.S
index 3205c72..d8debe2 100644
--- a/libc/arch-x86/syscalls/sched_get_priority_max.S
+++ b/libc/arch-x86/syscalls/sched_get_priority_max.S
@@ -15,7 +15,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ebx
     ret
diff --git a/libc/arch-x86/syscalls/sched_get_priority_min.S b/libc/arch-x86/syscalls/sched_get_priority_min.S
index 39c4d2c..e9689fa 100644
--- a/libc/arch-x86/syscalls/sched_get_priority_min.S
+++ b/libc/arch-x86/syscalls/sched_get_priority_min.S
@@ -15,7 +15,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ebx
     ret
diff --git a/libc/arch-x86/syscalls/sched_getparam.S b/libc/arch-x86/syscalls/sched_getparam.S
index 47cb4af..6b5e7c8 100644
--- a/libc/arch-x86/syscalls/sched_getparam.S
+++ b/libc/arch-x86/syscalls/sched_getparam.S
@@ -19,7 +19,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ecx
     popl    %ebx
diff --git a/libc/arch-x86/syscalls/sched_getscheduler.S b/libc/arch-x86/syscalls/sched_getscheduler.S
index 07fbe6b..a2c5746 100644
--- a/libc/arch-x86/syscalls/sched_getscheduler.S
+++ b/libc/arch-x86/syscalls/sched_getscheduler.S
@@ -15,7 +15,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ebx
     ret
diff --git a/libc/arch-x86/syscalls/sched_rr_get_interval.S b/libc/arch-x86/syscalls/sched_rr_get_interval.S
index e7a1038..f8012f3 100644
--- a/libc/arch-x86/syscalls/sched_rr_get_interval.S
+++ b/libc/arch-x86/syscalls/sched_rr_get_interval.S
@@ -19,7 +19,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ecx
     popl    %ebx
diff --git a/libc/arch-x86/syscalls/sched_setaffinity.S b/libc/arch-x86/syscalls/sched_setaffinity.S
index bb35259..76013f9 100644
--- a/libc/arch-x86/syscalls/sched_setaffinity.S
+++ b/libc/arch-x86/syscalls/sched_setaffinity.S
@@ -23,7 +23,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %edx
     popl    %ecx
diff --git a/libc/arch-x86/syscalls/sched_setparam.S b/libc/arch-x86/syscalls/sched_setparam.S
index 3e93c4c..aca4bd9 100644
--- a/libc/arch-x86/syscalls/sched_setparam.S
+++ b/libc/arch-x86/syscalls/sched_setparam.S
@@ -19,7 +19,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ecx
     popl    %ebx
diff --git a/libc/arch-x86/syscalls/sched_setscheduler.S b/libc/arch-x86/syscalls/sched_setscheduler.S
index fcabf12..fad72c6 100644
--- a/libc/arch-x86/syscalls/sched_setscheduler.S
+++ b/libc/arch-x86/syscalls/sched_setscheduler.S
@@ -23,7 +23,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %edx
     popl    %ecx
diff --git a/libc/arch-x86/syscalls/sched_yield.S b/libc/arch-x86/syscalls/sched_yield.S
index a8b22e3..8b4a9be 100644
--- a/libc/arch-x86/syscalls/sched_yield.S
+++ b/libc/arch-x86/syscalls/sched_yield.S
@@ -15,7 +15,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ebx
     ret
diff --git a/libc/arch-x86/syscalls/sendfile.S b/libc/arch-x86/syscalls/sendfile.S
index 30bf3ad..7bd86d0 100644
--- a/libc/arch-x86/syscalls/sendfile.S
+++ b/libc/arch-x86/syscalls/sendfile.S
@@ -27,7 +27,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %esi
     popl    %edx
diff --git a/libc/arch-x86/syscalls/sendfile64.S b/libc/arch-x86/syscalls/sendfile64.S
index 5a7f2bb..bd76043 100644
--- a/libc/arch-x86/syscalls/sendfile64.S
+++ b/libc/arch-x86/syscalls/sendfile64.S
@@ -27,7 +27,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %esi
     popl    %edx
diff --git a/libc/arch-x86/syscalls/sendmmsg.S b/libc/arch-x86/syscalls/sendmmsg.S
index 09a3292..4bc3c40 100644
--- a/libc/arch-x86/syscalls/sendmmsg.S
+++ b/libc/arch-x86/syscalls/sendmmsg.S
@@ -20,7 +20,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ecx
     popl    %ebx
diff --git a/libc/arch-x86/syscalls/sendmsg.S b/libc/arch-x86/syscalls/sendmsg.S
index eaf7fb3..eb8fc63 100644
--- a/libc/arch-x86/syscalls/sendmsg.S
+++ b/libc/arch-x86/syscalls/sendmsg.S
@@ -20,7 +20,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ecx
     popl    %ebx
diff --git a/libc/arch-x86/syscalls/sendto.S b/libc/arch-x86/syscalls/sendto.S
index 0cf5e0a..8cb72c8 100644
--- a/libc/arch-x86/syscalls/sendto.S
+++ b/libc/arch-x86/syscalls/sendto.S
@@ -20,7 +20,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ecx
     popl    %ebx
diff --git a/libc/arch-x86/syscalls/setgid.S b/libc/arch-x86/syscalls/setgid.S
index b0b7185..baa1b1a 100644
--- a/libc/arch-x86/syscalls/setgid.S
+++ b/libc/arch-x86/syscalls/setgid.S
@@ -15,7 +15,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ebx
     ret
diff --git a/libc/arch-x86/syscalls/setgroups.S b/libc/arch-x86/syscalls/setgroups.S
index be227ca..364aaad 100644
--- a/libc/arch-x86/syscalls/setgroups.S
+++ b/libc/arch-x86/syscalls/setgroups.S
@@ -19,7 +19,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ecx
     popl    %ebx
diff --git a/libc/arch-x86/syscalls/setitimer.S b/libc/arch-x86/syscalls/setitimer.S
index 4a323da..409c4c6 100644
--- a/libc/arch-x86/syscalls/setitimer.S
+++ b/libc/arch-x86/syscalls/setitimer.S
@@ -23,7 +23,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %edx
     popl    %ecx
diff --git a/libc/arch-x86/syscalls/setns.S b/libc/arch-x86/syscalls/setns.S
index fa69b4a..ddbe758 100644
--- a/libc/arch-x86/syscalls/setns.S
+++ b/libc/arch-x86/syscalls/setns.S
@@ -19,7 +19,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ecx
     popl    %ebx
diff --git a/libc/arch-x86/syscalls/setpgid.S b/libc/arch-x86/syscalls/setpgid.S
index eba780c..ac1b12d 100644
--- a/libc/arch-x86/syscalls/setpgid.S
+++ b/libc/arch-x86/syscalls/setpgid.S
@@ -19,7 +19,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ecx
     popl    %ebx
diff --git a/libc/arch-x86/syscalls/setpriority.S b/libc/arch-x86/syscalls/setpriority.S
index 5ea0519..93c1e07 100644
--- a/libc/arch-x86/syscalls/setpriority.S
+++ b/libc/arch-x86/syscalls/setpriority.S
@@ -23,7 +23,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %edx
     popl    %ecx
diff --git a/libc/arch-x86/syscalls/setregid.S b/libc/arch-x86/syscalls/setregid.S
index ae5bfca..0ecfa9a 100644
--- a/libc/arch-x86/syscalls/setregid.S
+++ b/libc/arch-x86/syscalls/setregid.S
@@ -19,7 +19,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ecx
     popl    %ebx
diff --git a/libc/arch-x86/syscalls/setresgid.S b/libc/arch-x86/syscalls/setresgid.S
index 64b5f7e..a6914c4 100644
--- a/libc/arch-x86/syscalls/setresgid.S
+++ b/libc/arch-x86/syscalls/setresgid.S
@@ -23,7 +23,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %edx
     popl    %ecx
diff --git a/libc/arch-x86/syscalls/setresuid.S b/libc/arch-x86/syscalls/setresuid.S
index 2a29fa5..c33c1ca 100644
--- a/libc/arch-x86/syscalls/setresuid.S
+++ b/libc/arch-x86/syscalls/setresuid.S
@@ -23,7 +23,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %edx
     popl    %ecx
diff --git a/libc/arch-x86/syscalls/setreuid.S b/libc/arch-x86/syscalls/setreuid.S
index 200a83a..4244988 100644
--- a/libc/arch-x86/syscalls/setreuid.S
+++ b/libc/arch-x86/syscalls/setreuid.S
@@ -19,7 +19,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ecx
     popl    %ebx
diff --git a/libc/arch-x86/syscalls/setrlimit.S b/libc/arch-x86/syscalls/setrlimit.S
index 64a46c0..3e86504 100644
--- a/libc/arch-x86/syscalls/setrlimit.S
+++ b/libc/arch-x86/syscalls/setrlimit.S
@@ -19,7 +19,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ecx
     popl    %ebx
diff --git a/libc/arch-x86/syscalls/setsid.S b/libc/arch-x86/syscalls/setsid.S
index 382ad0c..398c110 100644
--- a/libc/arch-x86/syscalls/setsid.S
+++ b/libc/arch-x86/syscalls/setsid.S
@@ -11,7 +11,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     ret
 END(setsid)
diff --git a/libc/arch-x86/syscalls/setsockopt.S b/libc/arch-x86/syscalls/setsockopt.S
index e57c9d2..6ef168f 100644
--- a/libc/arch-x86/syscalls/setsockopt.S
+++ b/libc/arch-x86/syscalls/setsockopt.S
@@ -20,7 +20,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ecx
     popl    %ebx
diff --git a/libc/arch-x86/syscalls/settimeofday.S b/libc/arch-x86/syscalls/settimeofday.S
index 4b2eca9..37e11c5 100644
--- a/libc/arch-x86/syscalls/settimeofday.S
+++ b/libc/arch-x86/syscalls/settimeofday.S
@@ -19,7 +19,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ecx
     popl    %ebx
diff --git a/libc/arch-x86/syscalls/setuid.S b/libc/arch-x86/syscalls/setuid.S
index cf10ad6..fcea66d 100644
--- a/libc/arch-x86/syscalls/setuid.S
+++ b/libc/arch-x86/syscalls/setuid.S
@@ -15,7 +15,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ebx
     ret
diff --git a/libc/arch-x86/syscalls/setxattr.S b/libc/arch-x86/syscalls/setxattr.S
index 5edba2d..d6473cd 100644
--- a/libc/arch-x86/syscalls/setxattr.S
+++ b/libc/arch-x86/syscalls/setxattr.S
@@ -31,7 +31,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %edi
     popl    %esi
diff --git a/libc/arch-x86/syscalls/shutdown.S b/libc/arch-x86/syscalls/shutdown.S
index f1d606a..32fa17a 100644
--- a/libc/arch-x86/syscalls/shutdown.S
+++ b/libc/arch-x86/syscalls/shutdown.S
@@ -20,7 +20,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ecx
     popl    %ebx
diff --git a/libc/arch-x86/syscalls/sigaltstack.S b/libc/arch-x86/syscalls/sigaltstack.S
index 64872df..6882a78 100644
--- a/libc/arch-x86/syscalls/sigaltstack.S
+++ b/libc/arch-x86/syscalls/sigaltstack.S
@@ -19,7 +19,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ecx
     popl    %ebx
diff --git a/libc/arch-x86/syscalls/socketpair.S b/libc/arch-x86/syscalls/socketpair.S
index 4027752..945faa0 100644
--- a/libc/arch-x86/syscalls/socketpair.S
+++ b/libc/arch-x86/syscalls/socketpair.S
@@ -20,7 +20,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ecx
     popl    %ebx
diff --git a/libc/arch-x86/syscalls/swapoff.S b/libc/arch-x86/syscalls/swapoff.S
index 1657e64..0e21033 100644
--- a/libc/arch-x86/syscalls/swapoff.S
+++ b/libc/arch-x86/syscalls/swapoff.S
@@ -15,7 +15,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ebx
     ret
diff --git a/libc/arch-x86/syscalls/swapon.S b/libc/arch-x86/syscalls/swapon.S
index 16d0617..a4d5e03 100644
--- a/libc/arch-x86/syscalls/swapon.S
+++ b/libc/arch-x86/syscalls/swapon.S
@@ -19,7 +19,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ecx
     popl    %ebx
diff --git a/libc/arch-x86/syscalls/symlinkat.S b/libc/arch-x86/syscalls/symlinkat.S
index 78f9fa7..618f5d8 100644
--- a/libc/arch-x86/syscalls/symlinkat.S
+++ b/libc/arch-x86/syscalls/symlinkat.S
@@ -23,7 +23,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %edx
     popl    %ecx
diff --git a/libc/arch-x86/syscalls/sync.S b/libc/arch-x86/syscalls/sync.S
index a0cf66f..a1f1782 100644
--- a/libc/arch-x86/syscalls/sync.S
+++ b/libc/arch-x86/syscalls/sync.S
@@ -15,7 +15,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ebx
     ret
diff --git a/libc/arch-x86/syscalls/sysinfo.S b/libc/arch-x86/syscalls/sysinfo.S
index 1619edb..c3eabb0 100644
--- a/libc/arch-x86/syscalls/sysinfo.S
+++ b/libc/arch-x86/syscalls/sysinfo.S
@@ -15,7 +15,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ebx
     ret
diff --git a/libc/arch-x86/syscalls/tgkill.S b/libc/arch-x86/syscalls/tgkill.S
index 69ffdf8..385827b 100644
--- a/libc/arch-x86/syscalls/tgkill.S
+++ b/libc/arch-x86/syscalls/tgkill.S
@@ -23,7 +23,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %edx
     popl    %ecx
diff --git a/libc/arch-x86/syscalls/timerfd_create.S b/libc/arch-x86/syscalls/timerfd_create.S
index c0bc5b5..343195e 100644
--- a/libc/arch-x86/syscalls/timerfd_create.S
+++ b/libc/arch-x86/syscalls/timerfd_create.S
@@ -19,7 +19,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ecx
     popl    %ebx
diff --git a/libc/arch-x86/syscalls/timerfd_gettime.S b/libc/arch-x86/syscalls/timerfd_gettime.S
index 5dd7ad7..9b3a314 100644
--- a/libc/arch-x86/syscalls/timerfd_gettime.S
+++ b/libc/arch-x86/syscalls/timerfd_gettime.S
@@ -19,7 +19,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ecx
     popl    %ebx
diff --git a/libc/arch-x86/syscalls/timerfd_settime.S b/libc/arch-x86/syscalls/timerfd_settime.S
index bb027df..819b723 100644
--- a/libc/arch-x86/syscalls/timerfd_settime.S
+++ b/libc/arch-x86/syscalls/timerfd_settime.S
@@ -27,7 +27,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %esi
     popl    %edx
diff --git a/libc/arch-x86/syscalls/times.S b/libc/arch-x86/syscalls/times.S
index 075750d..f5739d3 100644
--- a/libc/arch-x86/syscalls/times.S
+++ b/libc/arch-x86/syscalls/times.S
@@ -15,7 +15,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ebx
     ret
diff --git a/libc/arch-x86/syscalls/truncate.S b/libc/arch-x86/syscalls/truncate.S
index 9270a53..427f95f 100644
--- a/libc/arch-x86/syscalls/truncate.S
+++ b/libc/arch-x86/syscalls/truncate.S
@@ -19,7 +19,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ecx
     popl    %ebx
diff --git a/libc/arch-x86/syscalls/truncate64.S b/libc/arch-x86/syscalls/truncate64.S
index 89c2c4a..2c49751 100644
--- a/libc/arch-x86/syscalls/truncate64.S
+++ b/libc/arch-x86/syscalls/truncate64.S
@@ -23,7 +23,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %edx
     popl    %ecx
diff --git a/libc/arch-x86/syscalls/umask.S b/libc/arch-x86/syscalls/umask.S
index 81df64d..3affc8d 100644
--- a/libc/arch-x86/syscalls/umask.S
+++ b/libc/arch-x86/syscalls/umask.S
@@ -15,7 +15,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ebx
     ret
diff --git a/libc/arch-x86/syscalls/umount2.S b/libc/arch-x86/syscalls/umount2.S
index cd21623..d2b3549 100644
--- a/libc/arch-x86/syscalls/umount2.S
+++ b/libc/arch-x86/syscalls/umount2.S
@@ -19,7 +19,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ecx
     popl    %ebx
diff --git a/libc/arch-x86/syscalls/uname.S b/libc/arch-x86/syscalls/uname.S
index 9d65e85..e996805 100644
--- a/libc/arch-x86/syscalls/uname.S
+++ b/libc/arch-x86/syscalls/uname.S
@@ -15,7 +15,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ebx
     ret
diff --git a/libc/arch-x86/syscalls/unlinkat.S b/libc/arch-x86/syscalls/unlinkat.S
index 68bf05b..6417d2b 100644
--- a/libc/arch-x86/syscalls/unlinkat.S
+++ b/libc/arch-x86/syscalls/unlinkat.S
@@ -23,7 +23,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %edx
     popl    %ecx
diff --git a/libc/arch-x86/syscalls/unshare.S b/libc/arch-x86/syscalls/unshare.S
index 7e48cb1..a289d4d 100644
--- a/libc/arch-x86/syscalls/unshare.S
+++ b/libc/arch-x86/syscalls/unshare.S
@@ -15,7 +15,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %ebx
     ret
diff --git a/libc/arch-x86/syscalls/utimensat.S b/libc/arch-x86/syscalls/utimensat.S
index 4b2a9b6..d8c9080 100644
--- a/libc/arch-x86/syscalls/utimensat.S
+++ b/libc/arch-x86/syscalls/utimensat.S
@@ -27,7 +27,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %esi
     popl    %edx
diff --git a/libc/arch-x86/syscalls/wait4.S b/libc/arch-x86/syscalls/wait4.S
index bd4bd50..fda75c0 100644
--- a/libc/arch-x86/syscalls/wait4.S
+++ b/libc/arch-x86/syscalls/wait4.S
@@ -27,7 +27,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %esi
     popl    %edx
diff --git a/libc/arch-x86/syscalls/write.S b/libc/arch-x86/syscalls/write.S
index a464196..115974e 100644
--- a/libc/arch-x86/syscalls/write.S
+++ b/libc/arch-x86/syscalls/write.S
@@ -23,7 +23,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %edx
     popl    %ecx
diff --git a/libc/arch-x86/syscalls/writev.S b/libc/arch-x86/syscalls/writev.S
index da9ae7c..77e5cd1 100644
--- a/libc/arch-x86/syscalls/writev.S
+++ b/libc/arch-x86/syscalls/writev.S
@@ -23,7 +23,6 @@
     pushl   %eax
     call    __set_errno
     addl    $4, %esp
-    orl     $-1, %eax
 1:
     popl    %edx
     popl    %ecx
diff --git a/libc/arch-x86_64/bionic/__bionic_clone.S b/libc/arch-x86_64/bionic/__bionic_clone.S
index db7d05c..173ab5c 100644
--- a/libc/arch-x86_64/bionic/__bionic_clone.S
+++ b/libc/arch-x86_64/bionic/__bionic_clone.S
@@ -45,17 +45,22 @@
         # Make the system call.
         movl    $__NR_clone, %eax
         syscall
-        testl   %eax, %eax
-        jns     1f
+
+        # Check result.
+        testq   %rax, %rax
+        jz      .L_bc_child
+        jg      .L_bc_parent
 
         # An error occurred, set errno and return -1.
         negl    %eax
         movl    %eax, %edi
         call    __set_errno
-        orl     $-1, %eax
-        jmp     2f
-1:
-        jnz     2f
+        ret
+
+.L_bc_child:
+        # We don't want anyone to unwind past this point.
+        .cfi_undefined %rip
+        .cfi_undefined %rbp
 
         # We're in the child now, so call __bionic_clone_entry
         # with the arguments from the child stack moved into
@@ -64,7 +69,9 @@
         popq    %rsi  # arg
         call    __bionic_clone_entry
         hlt
-2:
+
+.L_bc_parent:
+        # We're the parent; nothing to do.
         ret
 END(__bionic_clone)
 .hidden __bionic_clone
diff --git a/libc/arch-x86_64/bionic/syscall.S b/libc/arch-x86_64/bionic/syscall.S
index a98a436..d5694cb 100644
--- a/libc/arch-x86_64/bionic/syscall.S
+++ b/libc/arch-x86_64/bionic/syscall.S
@@ -58,7 +58,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(syscall)
diff --git a/libc/arch-x86_64/bionic/vfork.S b/libc/arch-x86_64/bionic/vfork.S
index b323f30..7c14cc0 100644
--- a/libc/arch-x86_64/bionic/vfork.S
+++ b/libc/arch-x86_64/bionic/vfork.S
@@ -40,7 +40,6 @@
   negl    %eax
   movl    %eax, %edi
   call    __set_errno
-  orq     $-1, %rax
 1:
   ret
 END(vfork)
diff --git a/libc/arch-x86_64/string/sse2-memmove-slm.S b/libc/arch-x86_64/string/sse2-memmove-slm.S
index ee8440e..0dbffad 100644
--- a/libc/arch-x86_64/string/sse2-memmove-slm.S
+++ b/libc/arch-x86_64/string/sse2-memmove-slm.S
@@ -99,7 +99,7 @@
 /* Check whether we should copy backward or forward.  */
 	cmp	%rsi, %rdi
 	je	L(mm_return)
-	ja	L(mm_len_0_or_more_backward)
+	jg	L(mm_len_0_or_more_backward)
 
 /* Now do checks for lengths. We do [0..16], [0..32], [0..64], [0..128]
 	separately.  */
@@ -107,7 +107,7 @@
 	jbe	L(mm_len_0_16_bytes_forward)
 
 	cmp	$32, %rdx
-	jg	L(mm_len_32_or_more_forward)
+	ja	L(mm_len_32_or_more_forward)
 
 /* Copy [0..32] and return.  */
 	movdqu	(%rsi), %xmm0
@@ -118,7 +118,7 @@
 
 L(mm_len_32_or_more_forward):
 	cmp	$64, %rdx
-	jg	L(mm_len_64_or_more_forward)
+	ja	L(mm_len_64_or_more_forward)
 
 /* Copy [0..64] and return.  */
 	movdqu	(%rsi), %xmm0
@@ -133,7 +133,7 @@
 
 L(mm_len_64_or_more_forward):
 	cmp	$128, %rdx
-	jg	L(mm_len_128_or_more_forward)
+	ja	L(mm_len_128_or_more_forward)
 
 /* Copy [0..128] and return.  */
 	movdqu	(%rsi), %xmm0
@@ -155,13 +155,6 @@
 	jmp	L(mm_return)
 
 L(mm_len_128_or_more_forward):
-
-	cmp	$SHARED_CACHE_SIZE_HALF, %rdx
-	jae	L(mm_large_page_forward)
-
-	mov	%rsi, %r8  // copy src to r8
-	mov	%rdi, %r9  // copy dst to r9
-
 /* Aligning the address of destination.  */
 /*  save first unaligned 64 bytes */
 	movdqu	(%rsi), %xmm0
@@ -169,56 +162,57 @@
 	movdqu	32(%rsi), %xmm2
 	movdqu	48(%rsi), %xmm3
 
-	lea	64(%r9), %rdi
-	and	$-64, %rdi  /* rdi now aligned to next 64 byte boundary */
+	lea	64(%rdi), %r8
+	and	$-64, %r8  /* r8 now aligned to next 64 byte boundary */
+	sub	%rdi, %rsi /* rsi = src - dst = diff */
 
-	sub	%r9, %rsi /* rsi = src - dst = diff */
+	movdqu	(%r8, %rsi), %xmm4
+	movdqu	16(%r8, %rsi), %xmm5
+	movdqu	32(%r8, %rsi), %xmm6
+	movdqu	48(%r8, %rsi), %xmm7
 
-	movdqu	(%rdi, %rsi), %xmm4
-	movdqu	16(%rdi, %rsi), %xmm5
-	movdqu	32(%rdi, %rsi), %xmm6
-	movdqu	48(%rdi, %rsi), %xmm7
+	movdqu	%xmm0, (%rdi)
+	movdqu	%xmm1, 16(%rdi)
+	movdqu	%xmm2, 32(%rdi)
+	movdqu	%xmm3, 48(%rdi)
+	movdqa	%xmm4, (%r8)
+	movaps	%xmm5, 16(%r8)
+	movaps	%xmm6, 32(%r8)
+	movaps	%xmm7, 48(%r8)
+	add	$64, %r8
 
-	movdqu	%xmm0, (%r9)
-	movdqu	%xmm1, 16(%r9)
-	movdqu	%xmm2, 32(%r9)
-	movdqu	%xmm3, 48(%r9)
-	movdqa	%xmm4, (%rdi)
-	movdqa	%xmm5, 16(%rdi)
-	movdqa	%xmm6, 32(%rdi)
-	movdqa	%xmm7, 48(%rdi)
-	add	$64, %rdi
-
-	lea	(%r9, %rdx), %rbx
+	lea	(%rdi, %rdx), %rbx
 	and	$-64, %rbx
-
-	cmp	%rdi, %rbx
+	cmp	%r8, %rbx
 	jbe	L(mm_copy_remaining_forward)
 
+	cmp	$SHARED_CACHE_SIZE_HALF, %rdx
+	jae	L(mm_large_page_loop_forward)
+
 	.p2align 4
 L(mm_main_loop_forward):
 
-	prefetcht0 128(%rdi, %rsi)
+	prefetcht0 128(%r8, %rsi)
 
-	movdqu	(%rdi, %rsi), %xmm0
-	movdqu	16(%rdi, %rsi), %xmm1
-	movdqu	32(%rdi, %rsi), %xmm2
-	movdqu	48(%rdi, %rsi), %xmm3
-	movdqa	%xmm0, (%rdi)
-	movdqa	%xmm1, 16(%rdi)
-	movdqa	%xmm2, 32(%rdi)
-	movdqa	%xmm3, 48(%rdi)
-	lea	64(%rdi), %rdi
-	cmp	%rdi, %rbx
+	movdqu	(%r8, %rsi), %xmm0
+	movdqu	16(%r8, %rsi), %xmm1
+	movdqu	32(%r8, %rsi), %xmm2
+	movdqu	48(%r8, %rsi), %xmm3
+	movdqa	%xmm0, (%r8)
+	movaps	%xmm1, 16(%r8)
+	movaps	%xmm2, 32(%r8)
+	movaps	%xmm3, 48(%r8)
+	lea	64(%r8), %r8
+	cmp	%r8, %rbx
 	ja	L(mm_main_loop_forward)
 
 L(mm_copy_remaining_forward):
-	add	%r9, %rdx
-	sub	%rdi, %rdx
+	add	%rdi, %rdx
+	sub	%r8, %rdx
 /* We copied all up till %rdi position in the dst.
 	In %rdx now is how many bytes are left to copy.
 	Now we need to advance %r8. */
-	lea	(%rdi, %rsi), %r8
+	lea	(%r8, %rsi), %r9
 
 L(mm_remaining_0_64_bytes_forward):
 	cmp	$32, %rdx
@@ -237,49 +231,49 @@
 	cmpb	$2, %dl
 	.p2align 4,,1
 	ja	L(mm_remaining_3_4_bytes_forward)
-	movzbl	-1(%r8,%rdx), %esi
-	movzbl	(%r8), %ebx
-	movb	%sil, -1(%rdi,%rdx)
-	movb	%bl, (%rdi)
+	movzbl	-1(%r9,%rdx), %esi
+	movzbl	(%r9), %ebx
+	movb	%sil, -1(%r8,%rdx)
+	movb	%bl, (%r8)
 	jmp	L(mm_return)
 
 L(mm_remaining_33_64_bytes_forward):
-	movdqu	(%r8), %xmm0
-	movdqu	16(%r8), %xmm1
-	movdqu	-32(%r8, %rdx), %xmm2
-	movdqu	-16(%r8, %rdx), %xmm3
-	movdqu	%xmm0, (%rdi)
-	movdqu	%xmm1, 16(%rdi)
-	movdqu	%xmm2, -32(%rdi, %rdx)
-	movdqu	%xmm3, -16(%rdi, %rdx)
+	movdqu	(%r9), %xmm0
+	movdqu	16(%r9), %xmm1
+	movdqu	-32(%r9, %rdx), %xmm2
+	movdqu	-16(%r9, %rdx), %xmm3
+	movdqu	%xmm0, (%r8)
+	movdqu	%xmm1, 16(%r8)
+	movdqu	%xmm2, -32(%r8, %rdx)
+	movdqu	%xmm3, -16(%r8, %rdx)
 	jmp	L(mm_return)
 
 L(mm_remaining_17_32_bytes_forward):
-	movdqu	(%r8), %xmm0
-	movdqu	-16(%r8, %rdx), %xmm1
-	movdqu	%xmm0, (%rdi)
-	movdqu	%xmm1, -16(%rdi, %rdx)
-	jmp	L(mm_return)
-
-L(mm_remaining_3_4_bytes_forward):
-	movzwl	-2(%r8,%rdx), %esi
-	movzwl	(%r8), %ebx
-	movw	%si, -2(%rdi,%rdx)
-	movw	%bx, (%rdi)
+	movdqu	(%r9), %xmm0
+	movdqu	-16(%r9, %rdx), %xmm1
+	movdqu	%xmm0, (%r8)
+	movdqu	%xmm1, -16(%r8, %rdx)
 	jmp	L(mm_return)
 
 L(mm_remaining_5_8_bytes_forward):
-	movl	(%r8), %esi
-	movl	-4(%r8,%rdx), %ebx
-	movl	%esi, (%rdi)
-	movl	%ebx, -4(%rdi,%rdx)
+	movl	(%r9), %esi
+	movl	-4(%r9,%rdx), %ebx
+	movl	%esi, (%r8)
+	movl	%ebx, -4(%r8,%rdx)
 	jmp	L(mm_return)
 
 L(mm_remaining_9_16_bytes_forward):
-	mov	(%r8), %rsi
-	mov	-8(%r8, %rdx), %rbx
-	mov	%rsi, (%rdi)
-	mov	%rbx, -8(%rdi, %rdx)
+	mov	(%r9), %rsi
+	mov	-8(%r9, %rdx), %rbx
+	mov	%rsi, (%r8)
+	mov	%rbx, -8(%r8, %rdx)
+	jmp	L(mm_return)
+
+L(mm_remaining_3_4_bytes_forward):
+	movzwl	-2(%r9,%rdx), %esi
+	movzwl	(%r9), %ebx
+	movw	%si, -2(%r8,%rdx)
+	movw	%bx, (%r8)
 	jmp	L(mm_return)
 
 L(mm_len_0_16_bytes_forward):
@@ -321,16 +315,21 @@
 	mov	%rsi, -8(%rdi, %rdx)
 	jmp	L(mm_return)
 
+L(mm_recalc_len):
+/* Compute in %rdx how many bytes are left to copy after
+	the main loop stops.  */
+	mov 	%rbx, %rdx
+	sub 	%rdi, %rdx
 /* The code for copying backwards.  */
 L(mm_len_0_or_more_backward):
 
-/* Now do checks for lengths. We do [0..16], [0..32], [0..64], [0..128]
+/* Now do checks for lengths. We do [0..16], [16..32], [32..64], [64..128]
 	separately.  */
 	cmp	$16, %rdx
 	jbe	L(mm_len_0_16_bytes_backward)
 
 	cmp	$32, %rdx
-	jg	L(mm_len_32_or_more_backward)
+	ja	L(mm_len_32_or_more_backward)
 
 /* Copy [0..32] and return.  */
 	movdqu	(%rsi), %xmm0
@@ -341,7 +340,7 @@
 
 L(mm_len_32_or_more_backward):
 	cmp	$64, %rdx
-	jg	L(mm_len_64_or_more_backward)
+	ja	L(mm_len_64_or_more_backward)
 
 /* Copy [0..64] and return.  */
 	movdqu	(%rsi), %xmm0
@@ -356,7 +355,7 @@
 
 L(mm_len_64_or_more_backward):
 	cmp	$128, %rdx
-	jg	L(mm_len_128_or_more_backward)
+	ja	L(mm_len_128_or_more_backward)
 
 /* Copy [0..128] and return.  */
 	movdqu	(%rsi), %xmm0
@@ -378,10 +377,6 @@
 	jmp	L(mm_return)
 
 L(mm_len_128_or_more_backward):
-
-	cmp	$SHARED_CACHE_SIZE_HALF, %rdx
-	jae	L(mm_large_page_backward)
-
 /* Aligning the address of destination. We need to save
 	16 bits from the source in order not to overwrite them.  */
 	movdqu	-16(%rsi, %rdx), %xmm0
@@ -405,22 +400,19 @@
 	movdqu	%xmm2, -48(%rdi, %rdx)
 	movdqu	%xmm3, -64(%rdi, %rdx)
 	movdqa	%xmm4, -16(%r9)
-	movdqa	%xmm5, -32(%r9)
-	movdqa	%xmm6, -48(%r9)
-	movdqa	%xmm7, -64(%r9)
+	movaps	%xmm5, -32(%r9)
+	movaps	%xmm6, -48(%r9)
+	movaps	%xmm7, -64(%r9)
 	lea	-64(%r9), %r9
 
 	lea	64(%rdi), %rbx
 	and	$-64, %rbx
 
-/* Compute in %rdx how many bytes are left to copy after
-	the main loop stops.  */
-	mov 	%rbx, %rdx
-	sub 	%rdi, %rdx
-
 	cmp	%r9, %rbx
-	jb	L(mm_main_loop_backward)
-	jmp	L(mm_len_0_or_more_backward)
+	jae	L(mm_recalc_len)
+
+	cmp	$SHARED_CACHE_SIZE_HALF, %rdx
+	jae	L(mm_large_page_loop_backward)
 
 	.p2align 4
 L(mm_main_loop_backward):
@@ -432,13 +424,13 @@
 	movdqu	-32(%r9, %r8), %xmm2
 	movdqu	-16(%r9, %r8), %xmm3
 	movdqa	%xmm0, -64(%r9)
-	movdqa	%xmm1, -48(%r9)
-	movdqa	%xmm2, -32(%r9)
-	movdqa	%xmm3, -16(%r9)
+	movaps	%xmm1, -48(%r9)
+	movaps	%xmm2, -32(%r9)
+	movaps	%xmm3, -16(%r9)
 	lea	-64(%r9), %r9
 	cmp	%r9, %rbx
 	jb	L(mm_main_loop_backward)
-	jmp	L(mm_len_0_or_more_backward)
+	jmp	L(mm_recalc_len)
 
 /* Copy [0..16] and return.  */
 L(mm_len_0_16_bytes_backward):
@@ -485,138 +477,23 @@
 
 /* Big length copy forward part.  */
 
-L(mm_large_page_forward):
-/* Aligning the address of destination. We need to save
-	16 bits from the source in order not to overwrite them.  */
-
-	mov	%rsi, %r8
-	mov	%rdi, %r9
-
-	movdqu	(%rsi), %xmm0
-	movdqu	16(%rsi), %xmm1
-	movdqu	32(%rsi), %xmm2
-	movdqu	48(%rsi), %xmm3
-
-	lea	64(%r9), %rdi
-	and	$-64, %rdi      /* rdi = aligned dst */
-
-	sub	%r9, %rsi        /* rsi = diff */
-
-	movdqu	(%rdi, %rsi), %xmm4
-	movdqu	16(%rdi, %rsi), %xmm5
-	movdqu	32(%rdi, %rsi), %xmm6
-	movdqu	48(%rdi, %rsi), %xmm7
-
-	movdqu	%xmm0, (%r9)
-	movdqu	%xmm1, 16(%r9)
-	movdqu	%xmm2, 32(%r9)
-	movdqu	%xmm3, 48(%r9)
-	movntdq	%xmm4, (%rdi)
-	movntdq	%xmm5, 16(%rdi)
-	movntdq	%xmm6, 32(%rdi)
-	movntdq	%xmm7, 48(%rdi)
-	add	$64, %rdi
-
-	lea	(%r9, %rdx), %rbx
-	and	$-128, %rbx
-
-	cmp	%rdi, %rbx
-	jbe	L(mm_copy_remaining_forward)
-
 	.p2align 4
 L(mm_large_page_loop_forward):
-	movdqu	(%rdi, %rsi), %xmm0
-	movdqu	16(%rdi, %rsi), %xmm1
-	movdqu	32(%rdi, %rsi), %xmm2
-	movdqu	48(%rdi, %rsi), %xmm3
-	movdqu	64(%rdi, %rsi), %xmm4
-	movdqu	80(%rdi, %rsi), %xmm5
-	movdqu	96(%rdi, %rsi), %xmm6
-	movdqu	112(%rdi, %rsi), %xmm7
-	movntdq	%xmm0, (%rdi)
-	movntdq	%xmm1, 16(%rdi)
-	movntdq	%xmm2, 32(%rdi)
-	movntdq	%xmm3, 48(%rdi)
-	movntdq	%xmm4, 64(%rdi)
-	movntdq	%xmm5, 80(%rdi)
-	movntdq	%xmm6, 96(%rdi)
-	movntdq	%xmm7, 112(%rdi)
-	lea 	128(%rdi), %rdi
-	cmp	%rdi, %rbx
+	movdqu	(%r8, %rsi), %xmm0
+	movdqu	16(%r8, %rsi), %xmm1
+	movdqu	32(%r8, %rsi), %xmm2
+	movdqu	48(%r8, %rsi), %xmm3
+	movntdq	%xmm0, (%r8)
+	movntdq	%xmm1, 16(%r8)
+	movntdq	%xmm2, 32(%r8)
+	movntdq	%xmm3, 48(%r8)
+	lea 	64(%r8), %r8
+	cmp	%r8, %rbx
 	ja	L(mm_large_page_loop_forward)
 	sfence
-
-	add 	%r9, %rdx
-	sub 	%rdi, %rdx
-/* We copied all up till %rdi position in the dst.
-	In %rdx now is how many bytes are left to copy.
-	Now we need to advance %r8. */
-	lea 	(%rdi, %rsi), %r8
-
-	cmp	$64, %rdx
-	jb	L(mm_remaining_0_64_bytes_forward)
-
-	movdqu	(%r8), %xmm0
-	movdqu	16(%r8), %xmm1
-	movdqu	32(%r8), %xmm2
-	movdqu	48(%r8), %xmm3
-	movdqu	-64(%r8, %rdx), %xmm4
-	movdqu	-48(%r8, %rdx), %xmm5
-	movdqu	-32(%r8, %rdx), %xmm6
-	movdqu	-16(%r8, %rdx), %xmm7
-	movdqu	%xmm0, (%rdi)
-	movdqu	%xmm1, 16(%rdi)
-	movdqu	%xmm2, 32(%rdi)
-	movdqu	%xmm3, 48(%rdi)
-	movdqu	%xmm4, -64(%rdi, %rdx)
-	movdqu	%xmm5, -48(%rdi, %rdx)
-	movdqu	%xmm6, -32(%rdi, %rdx)
-	movdqu	%xmm7, -16(%rdi, %rdx)
-	jmp	L(mm_return)
-
+	jmp	L(mm_copy_remaining_forward)
 
 /* Big length copy backward part.  */
-L(mm_large_page_backward):
-/* Aligning the address of destination. We need to save
-	16 bits from the source in order not to overwrite them.  */
-
-	movdqu	-16(%rsi, %rdx), %xmm0
-	movdqu	-32(%rsi, %rdx), %xmm1
-	movdqu	-48(%rsi, %rdx), %xmm2
-	movdqu	-64(%rsi, %rdx), %xmm3
-
-	lea	(%rdi, %rdx), %r9
-	and	$-64, %r9
-
-	mov 	%rsi, %r8
-	sub 	%rdi, %r8
-
-	movdqu	-16(%r9, %r8), %xmm4
-	movdqu	-32(%r9, %r8), %xmm5
-	movdqu	-48(%r9, %r8), %xmm6
-	movdqu	-64(%r9, %r8), %xmm7
-
-	movdqu	%xmm0, -16(%rdi, %rdx)
-	movdqu	%xmm1, -32(%rdi, %rdx)
-	movdqu	%xmm2, -48(%rdi, %rdx)
-	movdqu	%xmm3, -64(%rdi, %rdx)
-	movntdq	%xmm4, -16(%r9)
-	movntdq	%xmm5, -32(%r9)
-	movntdq	%xmm6, -48(%r9)
-	movntdq	%xmm7, -64(%r9)
-	lea 	-64(%r9), %r9
-
-	lea 	128(%rdi), %rbx
-	and 	$-64, %rbx
-
-/* Compute in %rdx how many bytes are left to copy after
-	the main loop stops.  */
-	mov 	%rbx, %rdx
-	sub 	%rdi, %rdx
-
-	cmp	%r9, %rbx
-	jae	L(mm_len_0_or_more_backward)
-
 	.p2align 4
 L(mm_large_page_loop_backward):
 	movdqu	-64(%r9, %r8), %xmm0
@@ -630,6 +507,7 @@
 	lea 	-64(%r9), %r9
 	cmp	%r9, %rbx
 	jb	L(mm_large_page_loop_backward)
-	jmp	L(mm_len_0_or_more_backward)
+	sfence
+	jmp	L(mm_recalc_len)
 
 END (MEMMOVE)
diff --git a/libc/arch-x86_64/syscalls/__accept4.S b/libc/arch-x86_64/syscalls/__accept4.S
index cf4837f..375a78b 100644
--- a/libc/arch-x86_64/syscalls/__accept4.S
+++ b/libc/arch-x86_64/syscalls/__accept4.S
@@ -11,7 +11,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(__accept4)
diff --git a/libc/arch-x86_64/syscalls/__arch_prctl.S b/libc/arch-x86_64/syscalls/__arch_prctl.S
index ac5d96e..6c72a6c 100644
--- a/libc/arch-x86_64/syscalls/__arch_prctl.S
+++ b/libc/arch-x86_64/syscalls/__arch_prctl.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(__arch_prctl)
diff --git a/libc/arch-x86_64/syscalls/__brk.S b/libc/arch-x86_64/syscalls/__brk.S
index a69f404..18ebc10 100644
--- a/libc/arch-x86_64/syscalls/__brk.S
+++ b/libc/arch-x86_64/syscalls/__brk.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(__brk)
diff --git a/libc/arch-x86_64/syscalls/__connect.S b/libc/arch-x86_64/syscalls/__connect.S
index 288484e..a7d2e93 100644
--- a/libc/arch-x86_64/syscalls/__connect.S
+++ b/libc/arch-x86_64/syscalls/__connect.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(__connect)
diff --git a/libc/arch-x86_64/syscalls/__epoll_pwait.S b/libc/arch-x86_64/syscalls/__epoll_pwait.S
index 306e12e..4271b53 100644
--- a/libc/arch-x86_64/syscalls/__epoll_pwait.S
+++ b/libc/arch-x86_64/syscalls/__epoll_pwait.S
@@ -11,7 +11,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(__epoll_pwait)
diff --git a/libc/arch-x86_64/syscalls/__exit.S b/libc/arch-x86_64/syscalls/__exit.S
index af3ada4..bcbaffc 100644
--- a/libc/arch-x86_64/syscalls/__exit.S
+++ b/libc/arch-x86_64/syscalls/__exit.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(__exit)
diff --git a/libc/arch-x86_64/syscalls/__getcpu.S b/libc/arch-x86_64/syscalls/__getcpu.S
index 8650db4..c25f294 100644
--- a/libc/arch-x86_64/syscalls/__getcpu.S
+++ b/libc/arch-x86_64/syscalls/__getcpu.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(__getcpu)
diff --git a/libc/arch-x86_64/syscalls/__getcwd.S b/libc/arch-x86_64/syscalls/__getcwd.S
index c762804..1743838 100644
--- a/libc/arch-x86_64/syscalls/__getcwd.S
+++ b/libc/arch-x86_64/syscalls/__getcwd.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(__getcwd)
diff --git a/libc/arch-x86_64/syscalls/__getpriority.S b/libc/arch-x86_64/syscalls/__getpriority.S
index 8aaae8f..349f574 100644
--- a/libc/arch-x86_64/syscalls/__getpriority.S
+++ b/libc/arch-x86_64/syscalls/__getpriority.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(__getpriority)
diff --git a/libc/arch-x86_64/syscalls/__ioctl.S b/libc/arch-x86_64/syscalls/__ioctl.S
index 646d819..2775911 100644
--- a/libc/arch-x86_64/syscalls/__ioctl.S
+++ b/libc/arch-x86_64/syscalls/__ioctl.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(__ioctl)
diff --git a/libc/arch-x86_64/syscalls/__openat.S b/libc/arch-x86_64/syscalls/__openat.S
index e065cca..dce4c7c 100644
--- a/libc/arch-x86_64/syscalls/__openat.S
+++ b/libc/arch-x86_64/syscalls/__openat.S
@@ -11,7 +11,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(__openat)
diff --git a/libc/arch-x86_64/syscalls/__ppoll.S b/libc/arch-x86_64/syscalls/__ppoll.S
index 6edaa36..31ba7e9 100644
--- a/libc/arch-x86_64/syscalls/__ppoll.S
+++ b/libc/arch-x86_64/syscalls/__ppoll.S
@@ -11,7 +11,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(__ppoll)
diff --git a/libc/arch-x86_64/syscalls/__pselect6.S b/libc/arch-x86_64/syscalls/__pselect6.S
index a2aec7a..a212c4e 100644
--- a/libc/arch-x86_64/syscalls/__pselect6.S
+++ b/libc/arch-x86_64/syscalls/__pselect6.S
@@ -11,7 +11,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(__pselect6)
diff --git a/libc/arch-x86_64/syscalls/__ptrace.S b/libc/arch-x86_64/syscalls/__ptrace.S
index 8ec8ac1..0a64fee 100644
--- a/libc/arch-x86_64/syscalls/__ptrace.S
+++ b/libc/arch-x86_64/syscalls/__ptrace.S
@@ -11,7 +11,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(__ptrace)
diff --git a/libc/arch-x86_64/syscalls/__reboot.S b/libc/arch-x86_64/syscalls/__reboot.S
index 9b8ef70..398d078 100644
--- a/libc/arch-x86_64/syscalls/__reboot.S
+++ b/libc/arch-x86_64/syscalls/__reboot.S
@@ -11,7 +11,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(__reboot)
diff --git a/libc/arch-x86_64/syscalls/__rt_sigaction.S b/libc/arch-x86_64/syscalls/__rt_sigaction.S
index b038f6e..f146b02 100644
--- a/libc/arch-x86_64/syscalls/__rt_sigaction.S
+++ b/libc/arch-x86_64/syscalls/__rt_sigaction.S
@@ -11,7 +11,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(__rt_sigaction)
diff --git a/libc/arch-x86_64/syscalls/__rt_sigpending.S b/libc/arch-x86_64/syscalls/__rt_sigpending.S
index e0c50c1..9d1698b 100644
--- a/libc/arch-x86_64/syscalls/__rt_sigpending.S
+++ b/libc/arch-x86_64/syscalls/__rt_sigpending.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(__rt_sigpending)
diff --git a/libc/arch-x86_64/syscalls/__rt_sigprocmask.S b/libc/arch-x86_64/syscalls/__rt_sigprocmask.S
index 2a0ab5e..1ac9b81 100644
--- a/libc/arch-x86_64/syscalls/__rt_sigprocmask.S
+++ b/libc/arch-x86_64/syscalls/__rt_sigprocmask.S
@@ -11,7 +11,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(__rt_sigprocmask)
diff --git a/libc/arch-x86_64/syscalls/__rt_sigsuspend.S b/libc/arch-x86_64/syscalls/__rt_sigsuspend.S
index 6fa6565..1059f0b 100644
--- a/libc/arch-x86_64/syscalls/__rt_sigsuspend.S
+++ b/libc/arch-x86_64/syscalls/__rt_sigsuspend.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(__rt_sigsuspend)
diff --git a/libc/arch-x86_64/syscalls/__rt_sigtimedwait.S b/libc/arch-x86_64/syscalls/__rt_sigtimedwait.S
index 46ee04b..de2e4cb 100644
--- a/libc/arch-x86_64/syscalls/__rt_sigtimedwait.S
+++ b/libc/arch-x86_64/syscalls/__rt_sigtimedwait.S
@@ -11,7 +11,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(__rt_sigtimedwait)
diff --git a/libc/arch-x86_64/syscalls/__sched_getaffinity.S b/libc/arch-x86_64/syscalls/__sched_getaffinity.S
index 3707226..410954c 100644
--- a/libc/arch-x86_64/syscalls/__sched_getaffinity.S
+++ b/libc/arch-x86_64/syscalls/__sched_getaffinity.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(__sched_getaffinity)
diff --git a/libc/arch-x86_64/syscalls/__set_tid_address.S b/libc/arch-x86_64/syscalls/__set_tid_address.S
index 4a8f153..c59c8b8 100644
--- a/libc/arch-x86_64/syscalls/__set_tid_address.S
+++ b/libc/arch-x86_64/syscalls/__set_tid_address.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(__set_tid_address)
diff --git a/libc/arch-x86_64/syscalls/__signalfd4.S b/libc/arch-x86_64/syscalls/__signalfd4.S
index fafe371..6ddcf5a 100644
--- a/libc/arch-x86_64/syscalls/__signalfd4.S
+++ b/libc/arch-x86_64/syscalls/__signalfd4.S
@@ -11,7 +11,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(__signalfd4)
diff --git a/libc/arch-x86_64/syscalls/__socket.S b/libc/arch-x86_64/syscalls/__socket.S
index 67621fc..209e329 100644
--- a/libc/arch-x86_64/syscalls/__socket.S
+++ b/libc/arch-x86_64/syscalls/__socket.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(__socket)
diff --git a/libc/arch-x86_64/syscalls/__timer_create.S b/libc/arch-x86_64/syscalls/__timer_create.S
index 2f41c88..3450d2b 100644
--- a/libc/arch-x86_64/syscalls/__timer_create.S
+++ b/libc/arch-x86_64/syscalls/__timer_create.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(__timer_create)
diff --git a/libc/arch-x86_64/syscalls/__timer_delete.S b/libc/arch-x86_64/syscalls/__timer_delete.S
index 2009916..fd60a16 100644
--- a/libc/arch-x86_64/syscalls/__timer_delete.S
+++ b/libc/arch-x86_64/syscalls/__timer_delete.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(__timer_delete)
diff --git a/libc/arch-x86_64/syscalls/__timer_getoverrun.S b/libc/arch-x86_64/syscalls/__timer_getoverrun.S
index fe71efe..f5309a3 100644
--- a/libc/arch-x86_64/syscalls/__timer_getoverrun.S
+++ b/libc/arch-x86_64/syscalls/__timer_getoverrun.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(__timer_getoverrun)
diff --git a/libc/arch-x86_64/syscalls/__timer_gettime.S b/libc/arch-x86_64/syscalls/__timer_gettime.S
index 44fe2ff..7e2bc92 100644
--- a/libc/arch-x86_64/syscalls/__timer_gettime.S
+++ b/libc/arch-x86_64/syscalls/__timer_gettime.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(__timer_gettime)
diff --git a/libc/arch-x86_64/syscalls/__timer_settime.S b/libc/arch-x86_64/syscalls/__timer_settime.S
index 1240aa1..f5401a0 100644
--- a/libc/arch-x86_64/syscalls/__timer_settime.S
+++ b/libc/arch-x86_64/syscalls/__timer_settime.S
@@ -11,7 +11,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(__timer_settime)
diff --git a/libc/arch-x86_64/syscalls/__waitid.S b/libc/arch-x86_64/syscalls/__waitid.S
index 0d4fc58..229f20c 100644
--- a/libc/arch-x86_64/syscalls/__waitid.S
+++ b/libc/arch-x86_64/syscalls/__waitid.S
@@ -11,7 +11,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(__waitid)
diff --git a/libc/arch-x86_64/syscalls/_exit.S b/libc/arch-x86_64/syscalls/_exit.S
index 3c15897..9c80f00 100644
--- a/libc/arch-x86_64/syscalls/_exit.S
+++ b/libc/arch-x86_64/syscalls/_exit.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(_exit)
diff --git a/libc/arch-x86_64/syscalls/acct.S b/libc/arch-x86_64/syscalls/acct.S
index 59af17d..91ecf5b 100644
--- a/libc/arch-x86_64/syscalls/acct.S
+++ b/libc/arch-x86_64/syscalls/acct.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(acct)
diff --git a/libc/arch-x86_64/syscalls/bind.S b/libc/arch-x86_64/syscalls/bind.S
index 20dfa2d..5d426cb 100644
--- a/libc/arch-x86_64/syscalls/bind.S
+++ b/libc/arch-x86_64/syscalls/bind.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(bind)
diff --git a/libc/arch-x86_64/syscalls/capget.S b/libc/arch-x86_64/syscalls/capget.S
index 9cf73fb..d3d151e 100644
--- a/libc/arch-x86_64/syscalls/capget.S
+++ b/libc/arch-x86_64/syscalls/capget.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(capget)
diff --git a/libc/arch-x86_64/syscalls/capset.S b/libc/arch-x86_64/syscalls/capset.S
index f6cf2eb..421f156 100644
--- a/libc/arch-x86_64/syscalls/capset.S
+++ b/libc/arch-x86_64/syscalls/capset.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(capset)
diff --git a/libc/arch-x86_64/syscalls/chdir.S b/libc/arch-x86_64/syscalls/chdir.S
index a04f3aa..7a6f651 100644
--- a/libc/arch-x86_64/syscalls/chdir.S
+++ b/libc/arch-x86_64/syscalls/chdir.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(chdir)
diff --git a/libc/arch-x86_64/syscalls/chroot.S b/libc/arch-x86_64/syscalls/chroot.S
index 491086d..0f53fd9 100644
--- a/libc/arch-x86_64/syscalls/chroot.S
+++ b/libc/arch-x86_64/syscalls/chroot.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(chroot)
diff --git a/libc/arch-x86_64/syscalls/clock_getres.S b/libc/arch-x86_64/syscalls/clock_getres.S
index d1d491e..bad0d78 100644
--- a/libc/arch-x86_64/syscalls/clock_getres.S
+++ b/libc/arch-x86_64/syscalls/clock_getres.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(clock_getres)
diff --git a/libc/arch-x86_64/syscalls/clock_gettime.S b/libc/arch-x86_64/syscalls/clock_gettime.S
index 89ae616..20850c8 100644
--- a/libc/arch-x86_64/syscalls/clock_gettime.S
+++ b/libc/arch-x86_64/syscalls/clock_gettime.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(clock_gettime)
diff --git a/libc/arch-x86_64/syscalls/clock_nanosleep.S b/libc/arch-x86_64/syscalls/clock_nanosleep.S
index 3833113..2ef0d05 100644
--- a/libc/arch-x86_64/syscalls/clock_nanosleep.S
+++ b/libc/arch-x86_64/syscalls/clock_nanosleep.S
@@ -11,7 +11,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(clock_nanosleep)
diff --git a/libc/arch-x86_64/syscalls/clock_settime.S b/libc/arch-x86_64/syscalls/clock_settime.S
index 15b27aa..6a3b75b 100644
--- a/libc/arch-x86_64/syscalls/clock_settime.S
+++ b/libc/arch-x86_64/syscalls/clock_settime.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(clock_settime)
diff --git a/libc/arch-x86_64/syscalls/close.S b/libc/arch-x86_64/syscalls/close.S
index 361d82f..41c8403 100644
--- a/libc/arch-x86_64/syscalls/close.S
+++ b/libc/arch-x86_64/syscalls/close.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(close)
diff --git a/libc/arch-x86_64/syscalls/delete_module.S b/libc/arch-x86_64/syscalls/delete_module.S
index 33f2354..d3f3862 100644
--- a/libc/arch-x86_64/syscalls/delete_module.S
+++ b/libc/arch-x86_64/syscalls/delete_module.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(delete_module)
diff --git a/libc/arch-x86_64/syscalls/dup.S b/libc/arch-x86_64/syscalls/dup.S
index dfc0def..bf2ca51 100644
--- a/libc/arch-x86_64/syscalls/dup.S
+++ b/libc/arch-x86_64/syscalls/dup.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(dup)
diff --git a/libc/arch-x86_64/syscalls/dup3.S b/libc/arch-x86_64/syscalls/dup3.S
index dcb4155..f5c929c 100644
--- a/libc/arch-x86_64/syscalls/dup3.S
+++ b/libc/arch-x86_64/syscalls/dup3.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(dup3)
diff --git a/libc/arch-x86_64/syscalls/epoll_create1.S b/libc/arch-x86_64/syscalls/epoll_create1.S
index fa3c6d7..196a3c7 100644
--- a/libc/arch-x86_64/syscalls/epoll_create1.S
+++ b/libc/arch-x86_64/syscalls/epoll_create1.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(epoll_create1)
diff --git a/libc/arch-x86_64/syscalls/epoll_ctl.S b/libc/arch-x86_64/syscalls/epoll_ctl.S
index 72df97f..2a3517c 100644
--- a/libc/arch-x86_64/syscalls/epoll_ctl.S
+++ b/libc/arch-x86_64/syscalls/epoll_ctl.S
@@ -11,7 +11,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(epoll_ctl)
diff --git a/libc/arch-x86_64/syscalls/eventfd.S b/libc/arch-x86_64/syscalls/eventfd.S
index 99f585c..3ed4baf 100644
--- a/libc/arch-x86_64/syscalls/eventfd.S
+++ b/libc/arch-x86_64/syscalls/eventfd.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(eventfd)
diff --git a/libc/arch-x86_64/syscalls/execve.S b/libc/arch-x86_64/syscalls/execve.S
index ea89d7d..1fe29c7 100644
--- a/libc/arch-x86_64/syscalls/execve.S
+++ b/libc/arch-x86_64/syscalls/execve.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(execve)
diff --git a/libc/arch-x86_64/syscalls/faccessat.S b/libc/arch-x86_64/syscalls/faccessat.S
index 238a4e1..3ea905c 100644
--- a/libc/arch-x86_64/syscalls/faccessat.S
+++ b/libc/arch-x86_64/syscalls/faccessat.S
@@ -11,7 +11,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(faccessat)
diff --git a/libc/arch-x86_64/syscalls/fallocate.S b/libc/arch-x86_64/syscalls/fallocate.S
index 9ba36b9..abaa303 100644
--- a/libc/arch-x86_64/syscalls/fallocate.S
+++ b/libc/arch-x86_64/syscalls/fallocate.S
@@ -11,7 +11,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(fallocate)
diff --git a/libc/arch-x86_64/syscalls/fchdir.S b/libc/arch-x86_64/syscalls/fchdir.S
index da14edd..b01bb57 100644
--- a/libc/arch-x86_64/syscalls/fchdir.S
+++ b/libc/arch-x86_64/syscalls/fchdir.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(fchdir)
diff --git a/libc/arch-x86_64/syscalls/fchmod.S b/libc/arch-x86_64/syscalls/fchmod.S
index a6d15fc..868638f 100644
--- a/libc/arch-x86_64/syscalls/fchmod.S
+++ b/libc/arch-x86_64/syscalls/fchmod.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(fchmod)
diff --git a/libc/arch-x86_64/syscalls/fchmodat.S b/libc/arch-x86_64/syscalls/fchmodat.S
index daf71ab..e045a13 100644
--- a/libc/arch-x86_64/syscalls/fchmodat.S
+++ b/libc/arch-x86_64/syscalls/fchmodat.S
@@ -11,7 +11,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(fchmodat)
diff --git a/libc/arch-x86_64/syscalls/fchown.S b/libc/arch-x86_64/syscalls/fchown.S
index 8c68a15..9ba775b 100644
--- a/libc/arch-x86_64/syscalls/fchown.S
+++ b/libc/arch-x86_64/syscalls/fchown.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(fchown)
diff --git a/libc/arch-x86_64/syscalls/fchownat.S b/libc/arch-x86_64/syscalls/fchownat.S
index e5265dd..7789d2d 100644
--- a/libc/arch-x86_64/syscalls/fchownat.S
+++ b/libc/arch-x86_64/syscalls/fchownat.S
@@ -11,7 +11,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(fchownat)
diff --git a/libc/arch-x86_64/syscalls/fcntl.S b/libc/arch-x86_64/syscalls/fcntl.S
index c562385..a20d938 100644
--- a/libc/arch-x86_64/syscalls/fcntl.S
+++ b/libc/arch-x86_64/syscalls/fcntl.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(fcntl)
diff --git a/libc/arch-x86_64/syscalls/fdatasync.S b/libc/arch-x86_64/syscalls/fdatasync.S
index 3f9ee72..5ea8ebd 100644
--- a/libc/arch-x86_64/syscalls/fdatasync.S
+++ b/libc/arch-x86_64/syscalls/fdatasync.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(fdatasync)
diff --git a/libc/arch-x86_64/syscalls/fgetxattr.S b/libc/arch-x86_64/syscalls/fgetxattr.S
index 77f095b..096c30f 100644
--- a/libc/arch-x86_64/syscalls/fgetxattr.S
+++ b/libc/arch-x86_64/syscalls/fgetxattr.S
@@ -11,7 +11,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(fgetxattr)
diff --git a/libc/arch-x86_64/syscalls/flistxattr.S b/libc/arch-x86_64/syscalls/flistxattr.S
index cd39298..e0e5b8b 100644
--- a/libc/arch-x86_64/syscalls/flistxattr.S
+++ b/libc/arch-x86_64/syscalls/flistxattr.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(flistxattr)
diff --git a/libc/arch-x86_64/syscalls/flock.S b/libc/arch-x86_64/syscalls/flock.S
index af2dbef..981d86e 100644
--- a/libc/arch-x86_64/syscalls/flock.S
+++ b/libc/arch-x86_64/syscalls/flock.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(flock)
diff --git a/libc/arch-x86_64/syscalls/fremovexattr.S b/libc/arch-x86_64/syscalls/fremovexattr.S
index 4387563..655bdef 100644
--- a/libc/arch-x86_64/syscalls/fremovexattr.S
+++ b/libc/arch-x86_64/syscalls/fremovexattr.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(fremovexattr)
diff --git a/libc/arch-x86_64/syscalls/fsetxattr.S b/libc/arch-x86_64/syscalls/fsetxattr.S
index 610890c..fa2bddc 100644
--- a/libc/arch-x86_64/syscalls/fsetxattr.S
+++ b/libc/arch-x86_64/syscalls/fsetxattr.S
@@ -11,7 +11,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(fsetxattr)
diff --git a/libc/arch-x86_64/syscalls/fstat64.S b/libc/arch-x86_64/syscalls/fstat64.S
index 6abb146..9e7aa2d 100644
--- a/libc/arch-x86_64/syscalls/fstat64.S
+++ b/libc/arch-x86_64/syscalls/fstat64.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(fstat64)
diff --git a/libc/arch-x86_64/syscalls/fstatat64.S b/libc/arch-x86_64/syscalls/fstatat64.S
index b85506c..5418cd0 100644
--- a/libc/arch-x86_64/syscalls/fstatat64.S
+++ b/libc/arch-x86_64/syscalls/fstatat64.S
@@ -11,7 +11,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(fstatat64)
diff --git a/libc/arch-x86_64/syscalls/fstatfs64.S b/libc/arch-x86_64/syscalls/fstatfs64.S
index 983e6b7..ee2daa2 100644
--- a/libc/arch-x86_64/syscalls/fstatfs64.S
+++ b/libc/arch-x86_64/syscalls/fstatfs64.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(fstatfs64)
diff --git a/libc/arch-x86_64/syscalls/fsync.S b/libc/arch-x86_64/syscalls/fsync.S
index 0392620..12eabd3 100644
--- a/libc/arch-x86_64/syscalls/fsync.S
+++ b/libc/arch-x86_64/syscalls/fsync.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(fsync)
diff --git a/libc/arch-x86_64/syscalls/ftruncate.S b/libc/arch-x86_64/syscalls/ftruncate.S
index 437b3e2..11161a7 100644
--- a/libc/arch-x86_64/syscalls/ftruncate.S
+++ b/libc/arch-x86_64/syscalls/ftruncate.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(ftruncate)
diff --git a/libc/arch-x86_64/syscalls/getdents.S b/libc/arch-x86_64/syscalls/getdents.S
index a47c26b..15e0f7e 100644
--- a/libc/arch-x86_64/syscalls/getdents.S
+++ b/libc/arch-x86_64/syscalls/getdents.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(getdents)
diff --git a/libc/arch-x86_64/syscalls/getegid.S b/libc/arch-x86_64/syscalls/getegid.S
index c1b8fae..6f9c2a8 100644
--- a/libc/arch-x86_64/syscalls/getegid.S
+++ b/libc/arch-x86_64/syscalls/getegid.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(getegid)
diff --git a/libc/arch-x86_64/syscalls/geteuid.S b/libc/arch-x86_64/syscalls/geteuid.S
index f2f1035..88000ef 100644
--- a/libc/arch-x86_64/syscalls/geteuid.S
+++ b/libc/arch-x86_64/syscalls/geteuid.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(geteuid)
diff --git a/libc/arch-x86_64/syscalls/getgid.S b/libc/arch-x86_64/syscalls/getgid.S
index e9b38c7..8f8eaa6 100644
--- a/libc/arch-x86_64/syscalls/getgid.S
+++ b/libc/arch-x86_64/syscalls/getgid.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(getgid)
diff --git a/libc/arch-x86_64/syscalls/getgroups.S b/libc/arch-x86_64/syscalls/getgroups.S
index b12836e..5358a3e 100644
--- a/libc/arch-x86_64/syscalls/getgroups.S
+++ b/libc/arch-x86_64/syscalls/getgroups.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(getgroups)
diff --git a/libc/arch-x86_64/syscalls/getitimer.S b/libc/arch-x86_64/syscalls/getitimer.S
index 79484d1..b6a6e8e 100644
--- a/libc/arch-x86_64/syscalls/getitimer.S
+++ b/libc/arch-x86_64/syscalls/getitimer.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(getitimer)
diff --git a/libc/arch-x86_64/syscalls/getpeername.S b/libc/arch-x86_64/syscalls/getpeername.S
index a276cac..98e06fb 100644
--- a/libc/arch-x86_64/syscalls/getpeername.S
+++ b/libc/arch-x86_64/syscalls/getpeername.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(getpeername)
diff --git a/libc/arch-x86_64/syscalls/getpgid.S b/libc/arch-x86_64/syscalls/getpgid.S
index c2f5c09..158f14d 100644
--- a/libc/arch-x86_64/syscalls/getpgid.S
+++ b/libc/arch-x86_64/syscalls/getpgid.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(getpgid)
diff --git a/libc/arch-x86_64/syscalls/getpid.S b/libc/arch-x86_64/syscalls/getpid.S
index 65b8df4..a2d732c 100644
--- a/libc/arch-x86_64/syscalls/getpid.S
+++ b/libc/arch-x86_64/syscalls/getpid.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(getpid)
diff --git a/libc/arch-x86_64/syscalls/getppid.S b/libc/arch-x86_64/syscalls/getppid.S
index ce3dbda..e4853e0 100644
--- a/libc/arch-x86_64/syscalls/getppid.S
+++ b/libc/arch-x86_64/syscalls/getppid.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(getppid)
diff --git a/libc/arch-x86_64/syscalls/getresgid.S b/libc/arch-x86_64/syscalls/getresgid.S
index 0edc20a..d65fb13 100644
--- a/libc/arch-x86_64/syscalls/getresgid.S
+++ b/libc/arch-x86_64/syscalls/getresgid.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(getresgid)
diff --git a/libc/arch-x86_64/syscalls/getresuid.S b/libc/arch-x86_64/syscalls/getresuid.S
index b900c99..80d85c6 100644
--- a/libc/arch-x86_64/syscalls/getresuid.S
+++ b/libc/arch-x86_64/syscalls/getresuid.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(getresuid)
diff --git a/libc/arch-x86_64/syscalls/getrlimit.S b/libc/arch-x86_64/syscalls/getrlimit.S
index 6a9c9b6..ea0ca7d 100644
--- a/libc/arch-x86_64/syscalls/getrlimit.S
+++ b/libc/arch-x86_64/syscalls/getrlimit.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(getrlimit)
diff --git a/libc/arch-x86_64/syscalls/getrusage.S b/libc/arch-x86_64/syscalls/getrusage.S
index 210d586..7a60738 100644
--- a/libc/arch-x86_64/syscalls/getrusage.S
+++ b/libc/arch-x86_64/syscalls/getrusage.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(getrusage)
diff --git a/libc/arch-x86_64/syscalls/getsid.S b/libc/arch-x86_64/syscalls/getsid.S
index de3e3c0..75e3fad 100644
--- a/libc/arch-x86_64/syscalls/getsid.S
+++ b/libc/arch-x86_64/syscalls/getsid.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(getsid)
diff --git a/libc/arch-x86_64/syscalls/getsockname.S b/libc/arch-x86_64/syscalls/getsockname.S
index ccabf71..3c7c2f8 100644
--- a/libc/arch-x86_64/syscalls/getsockname.S
+++ b/libc/arch-x86_64/syscalls/getsockname.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(getsockname)
diff --git a/libc/arch-x86_64/syscalls/getsockopt.S b/libc/arch-x86_64/syscalls/getsockopt.S
index c4f456e..725757c 100644
--- a/libc/arch-x86_64/syscalls/getsockopt.S
+++ b/libc/arch-x86_64/syscalls/getsockopt.S
@@ -11,7 +11,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(getsockopt)
diff --git a/libc/arch-x86_64/syscalls/gettimeofday.S b/libc/arch-x86_64/syscalls/gettimeofday.S
index 261bb6e..4867c30 100644
--- a/libc/arch-x86_64/syscalls/gettimeofday.S
+++ b/libc/arch-x86_64/syscalls/gettimeofday.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(gettimeofday)
diff --git a/libc/arch-x86_64/syscalls/getuid.S b/libc/arch-x86_64/syscalls/getuid.S
index 4cb9efd..d7306e1 100644
--- a/libc/arch-x86_64/syscalls/getuid.S
+++ b/libc/arch-x86_64/syscalls/getuid.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(getuid)
diff --git a/libc/arch-x86_64/syscalls/getxattr.S b/libc/arch-x86_64/syscalls/getxattr.S
index 6bdb762..7c66b0e 100644
--- a/libc/arch-x86_64/syscalls/getxattr.S
+++ b/libc/arch-x86_64/syscalls/getxattr.S
@@ -11,7 +11,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(getxattr)
diff --git a/libc/arch-x86_64/syscalls/init_module.S b/libc/arch-x86_64/syscalls/init_module.S
index eb048c0..187f5a2 100644
--- a/libc/arch-x86_64/syscalls/init_module.S
+++ b/libc/arch-x86_64/syscalls/init_module.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(init_module)
diff --git a/libc/arch-x86_64/syscalls/inotify_add_watch.S b/libc/arch-x86_64/syscalls/inotify_add_watch.S
index 3e124e7..47e15ab 100644
--- a/libc/arch-x86_64/syscalls/inotify_add_watch.S
+++ b/libc/arch-x86_64/syscalls/inotify_add_watch.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(inotify_add_watch)
diff --git a/libc/arch-x86_64/syscalls/inotify_init1.S b/libc/arch-x86_64/syscalls/inotify_init1.S
index 8d82115..160b0d5 100644
--- a/libc/arch-x86_64/syscalls/inotify_init1.S
+++ b/libc/arch-x86_64/syscalls/inotify_init1.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(inotify_init1)
diff --git a/libc/arch-x86_64/syscalls/inotify_rm_watch.S b/libc/arch-x86_64/syscalls/inotify_rm_watch.S
index ece1510..4c5874e 100644
--- a/libc/arch-x86_64/syscalls/inotify_rm_watch.S
+++ b/libc/arch-x86_64/syscalls/inotify_rm_watch.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(inotify_rm_watch)
diff --git a/libc/arch-x86_64/syscalls/ioprio_get.S b/libc/arch-x86_64/syscalls/ioprio_get.S
index 48c1402..729a288 100644
--- a/libc/arch-x86_64/syscalls/ioprio_get.S
+++ b/libc/arch-x86_64/syscalls/ioprio_get.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(ioprio_get)
diff --git a/libc/arch-x86_64/syscalls/ioprio_set.S b/libc/arch-x86_64/syscalls/ioprio_set.S
index 4cdc8b3..477fe61 100644
--- a/libc/arch-x86_64/syscalls/ioprio_set.S
+++ b/libc/arch-x86_64/syscalls/ioprio_set.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(ioprio_set)
diff --git a/libc/arch-x86_64/syscalls/kill.S b/libc/arch-x86_64/syscalls/kill.S
index 51ca35c..f234585 100644
--- a/libc/arch-x86_64/syscalls/kill.S
+++ b/libc/arch-x86_64/syscalls/kill.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(kill)
diff --git a/libc/arch-x86_64/syscalls/klogctl.S b/libc/arch-x86_64/syscalls/klogctl.S
index 8c0ccce..057b066 100644
--- a/libc/arch-x86_64/syscalls/klogctl.S
+++ b/libc/arch-x86_64/syscalls/klogctl.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(klogctl)
diff --git a/libc/arch-x86_64/syscalls/lgetxattr.S b/libc/arch-x86_64/syscalls/lgetxattr.S
index 6f195ea..525ee3b 100644
--- a/libc/arch-x86_64/syscalls/lgetxattr.S
+++ b/libc/arch-x86_64/syscalls/lgetxattr.S
@@ -11,7 +11,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(lgetxattr)
diff --git a/libc/arch-x86_64/syscalls/linkat.S b/libc/arch-x86_64/syscalls/linkat.S
index b9a2b14..815af86 100644
--- a/libc/arch-x86_64/syscalls/linkat.S
+++ b/libc/arch-x86_64/syscalls/linkat.S
@@ -11,7 +11,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(linkat)
diff --git a/libc/arch-x86_64/syscalls/listen.S b/libc/arch-x86_64/syscalls/listen.S
index 104b514..d3d7103 100644
--- a/libc/arch-x86_64/syscalls/listen.S
+++ b/libc/arch-x86_64/syscalls/listen.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(listen)
diff --git a/libc/arch-x86_64/syscalls/listxattr.S b/libc/arch-x86_64/syscalls/listxattr.S
index fe57e39..89fd63c 100644
--- a/libc/arch-x86_64/syscalls/listxattr.S
+++ b/libc/arch-x86_64/syscalls/listxattr.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(listxattr)
diff --git a/libc/arch-x86_64/syscalls/llistxattr.S b/libc/arch-x86_64/syscalls/llistxattr.S
index aa0a54d..cfff2e7 100644
--- a/libc/arch-x86_64/syscalls/llistxattr.S
+++ b/libc/arch-x86_64/syscalls/llistxattr.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(llistxattr)
diff --git a/libc/arch-x86_64/syscalls/lremovexattr.S b/libc/arch-x86_64/syscalls/lremovexattr.S
index 4b5ee65..0b6994a 100644
--- a/libc/arch-x86_64/syscalls/lremovexattr.S
+++ b/libc/arch-x86_64/syscalls/lremovexattr.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(lremovexattr)
diff --git a/libc/arch-x86_64/syscalls/lseek.S b/libc/arch-x86_64/syscalls/lseek.S
index cf19776..b2e8c16 100644
--- a/libc/arch-x86_64/syscalls/lseek.S
+++ b/libc/arch-x86_64/syscalls/lseek.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(lseek)
diff --git a/libc/arch-x86_64/syscalls/lsetxattr.S b/libc/arch-x86_64/syscalls/lsetxattr.S
index 67d93eb..fdaf98a 100644
--- a/libc/arch-x86_64/syscalls/lsetxattr.S
+++ b/libc/arch-x86_64/syscalls/lsetxattr.S
@@ -11,7 +11,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(lsetxattr)
diff --git a/libc/arch-x86_64/syscalls/madvise.S b/libc/arch-x86_64/syscalls/madvise.S
index e4ef923..3f567fd 100644
--- a/libc/arch-x86_64/syscalls/madvise.S
+++ b/libc/arch-x86_64/syscalls/madvise.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(madvise)
diff --git a/libc/arch-x86_64/syscalls/mincore.S b/libc/arch-x86_64/syscalls/mincore.S
index d92755c..e6b2521 100644
--- a/libc/arch-x86_64/syscalls/mincore.S
+++ b/libc/arch-x86_64/syscalls/mincore.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(mincore)
diff --git a/libc/arch-x86_64/syscalls/mkdirat.S b/libc/arch-x86_64/syscalls/mkdirat.S
index 9e5dbd6..abba2d5 100644
--- a/libc/arch-x86_64/syscalls/mkdirat.S
+++ b/libc/arch-x86_64/syscalls/mkdirat.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(mkdirat)
diff --git a/libc/arch-x86_64/syscalls/mknodat.S b/libc/arch-x86_64/syscalls/mknodat.S
index 49aac35..d3d78c9 100644
--- a/libc/arch-x86_64/syscalls/mknodat.S
+++ b/libc/arch-x86_64/syscalls/mknodat.S
@@ -11,7 +11,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(mknodat)
diff --git a/libc/arch-x86_64/syscalls/mlock.S b/libc/arch-x86_64/syscalls/mlock.S
index f0b0c6e..0c69eb7 100644
--- a/libc/arch-x86_64/syscalls/mlock.S
+++ b/libc/arch-x86_64/syscalls/mlock.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(mlock)
diff --git a/libc/arch-x86_64/syscalls/mlockall.S b/libc/arch-x86_64/syscalls/mlockall.S
index 420cb03..89ba9b6 100644
--- a/libc/arch-x86_64/syscalls/mlockall.S
+++ b/libc/arch-x86_64/syscalls/mlockall.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(mlockall)
diff --git a/libc/arch-x86_64/syscalls/mmap.S b/libc/arch-x86_64/syscalls/mmap.S
index 9c3fc0f..7b9f6e0 100644
--- a/libc/arch-x86_64/syscalls/mmap.S
+++ b/libc/arch-x86_64/syscalls/mmap.S
@@ -11,7 +11,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(mmap)
diff --git a/libc/arch-x86_64/syscalls/mount.S b/libc/arch-x86_64/syscalls/mount.S
index df488c3..04534c9 100644
--- a/libc/arch-x86_64/syscalls/mount.S
+++ b/libc/arch-x86_64/syscalls/mount.S
@@ -11,7 +11,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(mount)
diff --git a/libc/arch-x86_64/syscalls/mprotect.S b/libc/arch-x86_64/syscalls/mprotect.S
index 9ef61b5..d849bb1 100644
--- a/libc/arch-x86_64/syscalls/mprotect.S
+++ b/libc/arch-x86_64/syscalls/mprotect.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(mprotect)
diff --git a/libc/arch-x86_64/syscalls/mremap.S b/libc/arch-x86_64/syscalls/mremap.S
index 55e24bf..8af367e 100644
--- a/libc/arch-x86_64/syscalls/mremap.S
+++ b/libc/arch-x86_64/syscalls/mremap.S
@@ -11,7 +11,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(mremap)
diff --git a/libc/arch-x86_64/syscalls/msync.S b/libc/arch-x86_64/syscalls/msync.S
index 40524e3..c0ff0f9 100644
--- a/libc/arch-x86_64/syscalls/msync.S
+++ b/libc/arch-x86_64/syscalls/msync.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(msync)
diff --git a/libc/arch-x86_64/syscalls/munlock.S b/libc/arch-x86_64/syscalls/munlock.S
index b508259..d669f54 100644
--- a/libc/arch-x86_64/syscalls/munlock.S
+++ b/libc/arch-x86_64/syscalls/munlock.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(munlock)
diff --git a/libc/arch-x86_64/syscalls/munlockall.S b/libc/arch-x86_64/syscalls/munlockall.S
index 4314e2b..b7a9abc 100644
--- a/libc/arch-x86_64/syscalls/munlockall.S
+++ b/libc/arch-x86_64/syscalls/munlockall.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(munlockall)
diff --git a/libc/arch-x86_64/syscalls/munmap.S b/libc/arch-x86_64/syscalls/munmap.S
index 15d503c..4360bd0 100644
--- a/libc/arch-x86_64/syscalls/munmap.S
+++ b/libc/arch-x86_64/syscalls/munmap.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(munmap)
diff --git a/libc/arch-x86_64/syscalls/nanosleep.S b/libc/arch-x86_64/syscalls/nanosleep.S
index d303fcb..2eced5b 100644
--- a/libc/arch-x86_64/syscalls/nanosleep.S
+++ b/libc/arch-x86_64/syscalls/nanosleep.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(nanosleep)
diff --git a/libc/arch-x86_64/syscalls/personality.S b/libc/arch-x86_64/syscalls/personality.S
index 0379707..17ad7ee 100644
--- a/libc/arch-x86_64/syscalls/personality.S
+++ b/libc/arch-x86_64/syscalls/personality.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(personality)
diff --git a/libc/arch-x86_64/syscalls/pipe2.S b/libc/arch-x86_64/syscalls/pipe2.S
index d0a6768..83eb0a6 100644
--- a/libc/arch-x86_64/syscalls/pipe2.S
+++ b/libc/arch-x86_64/syscalls/pipe2.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(pipe2)
diff --git a/libc/arch-x86_64/syscalls/prctl.S b/libc/arch-x86_64/syscalls/prctl.S
index f7f561b..c79220d 100644
--- a/libc/arch-x86_64/syscalls/prctl.S
+++ b/libc/arch-x86_64/syscalls/prctl.S
@@ -11,7 +11,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(prctl)
diff --git a/libc/arch-x86_64/syscalls/pread64.S b/libc/arch-x86_64/syscalls/pread64.S
index 5828a06..1c4dc68 100644
--- a/libc/arch-x86_64/syscalls/pread64.S
+++ b/libc/arch-x86_64/syscalls/pread64.S
@@ -11,7 +11,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(pread64)
diff --git a/libc/arch-x86_64/syscalls/prlimit64.S b/libc/arch-x86_64/syscalls/prlimit64.S
index 12be53a..823feba 100644
--- a/libc/arch-x86_64/syscalls/prlimit64.S
+++ b/libc/arch-x86_64/syscalls/prlimit64.S
@@ -11,7 +11,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(prlimit64)
diff --git a/libc/arch-x86_64/syscalls/pwrite64.S b/libc/arch-x86_64/syscalls/pwrite64.S
index 1ada9d9..13bcb58 100644
--- a/libc/arch-x86_64/syscalls/pwrite64.S
+++ b/libc/arch-x86_64/syscalls/pwrite64.S
@@ -11,7 +11,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(pwrite64)
diff --git a/libc/arch-x86_64/syscalls/read.S b/libc/arch-x86_64/syscalls/read.S
index 0ff6c2a..400c87a 100644
--- a/libc/arch-x86_64/syscalls/read.S
+++ b/libc/arch-x86_64/syscalls/read.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(read)
diff --git a/libc/arch-x86_64/syscalls/readahead.S b/libc/arch-x86_64/syscalls/readahead.S
index a32c1c2..2a2978b 100644
--- a/libc/arch-x86_64/syscalls/readahead.S
+++ b/libc/arch-x86_64/syscalls/readahead.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(readahead)
diff --git a/libc/arch-x86_64/syscalls/readlinkat.S b/libc/arch-x86_64/syscalls/readlinkat.S
index a1c3ade..51d1f0c 100644
--- a/libc/arch-x86_64/syscalls/readlinkat.S
+++ b/libc/arch-x86_64/syscalls/readlinkat.S
@@ -11,7 +11,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(readlinkat)
diff --git a/libc/arch-x86_64/syscalls/readv.S b/libc/arch-x86_64/syscalls/readv.S
index a6f51cf..4199751 100644
--- a/libc/arch-x86_64/syscalls/readv.S
+++ b/libc/arch-x86_64/syscalls/readv.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(readv)
diff --git a/libc/arch-x86_64/syscalls/recvfrom.S b/libc/arch-x86_64/syscalls/recvfrom.S
index feb3a63..61ca1b2 100644
--- a/libc/arch-x86_64/syscalls/recvfrom.S
+++ b/libc/arch-x86_64/syscalls/recvfrom.S
@@ -11,7 +11,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(recvfrom)
diff --git a/libc/arch-x86_64/syscalls/recvmmsg.S b/libc/arch-x86_64/syscalls/recvmmsg.S
index 9da70e2..ce14ba5 100644
--- a/libc/arch-x86_64/syscalls/recvmmsg.S
+++ b/libc/arch-x86_64/syscalls/recvmmsg.S
@@ -11,7 +11,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(recvmmsg)
diff --git a/libc/arch-x86_64/syscalls/recvmsg.S b/libc/arch-x86_64/syscalls/recvmsg.S
index 6716aca..8655d07 100644
--- a/libc/arch-x86_64/syscalls/recvmsg.S
+++ b/libc/arch-x86_64/syscalls/recvmsg.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(recvmsg)
diff --git a/libc/arch-x86_64/syscalls/removexattr.S b/libc/arch-x86_64/syscalls/removexattr.S
index 89b2c4f..9736463 100644
--- a/libc/arch-x86_64/syscalls/removexattr.S
+++ b/libc/arch-x86_64/syscalls/removexattr.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(removexattr)
diff --git a/libc/arch-x86_64/syscalls/renameat.S b/libc/arch-x86_64/syscalls/renameat.S
index 9d69c3e..0be2ef9 100644
--- a/libc/arch-x86_64/syscalls/renameat.S
+++ b/libc/arch-x86_64/syscalls/renameat.S
@@ -11,7 +11,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(renameat)
diff --git a/libc/arch-x86_64/syscalls/sched_get_priority_max.S b/libc/arch-x86_64/syscalls/sched_get_priority_max.S
index 41b2d1d..0f92739 100644
--- a/libc/arch-x86_64/syscalls/sched_get_priority_max.S
+++ b/libc/arch-x86_64/syscalls/sched_get_priority_max.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(sched_get_priority_max)
diff --git a/libc/arch-x86_64/syscalls/sched_get_priority_min.S b/libc/arch-x86_64/syscalls/sched_get_priority_min.S
index 61b746f..8450e9d 100644
--- a/libc/arch-x86_64/syscalls/sched_get_priority_min.S
+++ b/libc/arch-x86_64/syscalls/sched_get_priority_min.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(sched_get_priority_min)
diff --git a/libc/arch-x86_64/syscalls/sched_getparam.S b/libc/arch-x86_64/syscalls/sched_getparam.S
index 23d34b2..a784640 100644
--- a/libc/arch-x86_64/syscalls/sched_getparam.S
+++ b/libc/arch-x86_64/syscalls/sched_getparam.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(sched_getparam)
diff --git a/libc/arch-x86_64/syscalls/sched_getscheduler.S b/libc/arch-x86_64/syscalls/sched_getscheduler.S
index 12f0ba0..090b322 100644
--- a/libc/arch-x86_64/syscalls/sched_getscheduler.S
+++ b/libc/arch-x86_64/syscalls/sched_getscheduler.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(sched_getscheduler)
diff --git a/libc/arch-x86_64/syscalls/sched_rr_get_interval.S b/libc/arch-x86_64/syscalls/sched_rr_get_interval.S
index 0ff852f..0977f2e 100644
--- a/libc/arch-x86_64/syscalls/sched_rr_get_interval.S
+++ b/libc/arch-x86_64/syscalls/sched_rr_get_interval.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(sched_rr_get_interval)
diff --git a/libc/arch-x86_64/syscalls/sched_setaffinity.S b/libc/arch-x86_64/syscalls/sched_setaffinity.S
index 250ecb6..af8e7a2 100644
--- a/libc/arch-x86_64/syscalls/sched_setaffinity.S
+++ b/libc/arch-x86_64/syscalls/sched_setaffinity.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(sched_setaffinity)
diff --git a/libc/arch-x86_64/syscalls/sched_setparam.S b/libc/arch-x86_64/syscalls/sched_setparam.S
index 30a7963..2964607 100644
--- a/libc/arch-x86_64/syscalls/sched_setparam.S
+++ b/libc/arch-x86_64/syscalls/sched_setparam.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(sched_setparam)
diff --git a/libc/arch-x86_64/syscalls/sched_setscheduler.S b/libc/arch-x86_64/syscalls/sched_setscheduler.S
index 137f9f0..333d1b8 100644
--- a/libc/arch-x86_64/syscalls/sched_setscheduler.S
+++ b/libc/arch-x86_64/syscalls/sched_setscheduler.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(sched_setscheduler)
diff --git a/libc/arch-x86_64/syscalls/sched_yield.S b/libc/arch-x86_64/syscalls/sched_yield.S
index 097c7dc..a972154 100644
--- a/libc/arch-x86_64/syscalls/sched_yield.S
+++ b/libc/arch-x86_64/syscalls/sched_yield.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(sched_yield)
diff --git a/libc/arch-x86_64/syscalls/sendfile.S b/libc/arch-x86_64/syscalls/sendfile.S
index 72e5de4..c1b6497 100644
--- a/libc/arch-x86_64/syscalls/sendfile.S
+++ b/libc/arch-x86_64/syscalls/sendfile.S
@@ -11,7 +11,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(sendfile)
diff --git a/libc/arch-x86_64/syscalls/sendmmsg.S b/libc/arch-x86_64/syscalls/sendmmsg.S
index 7407c12..940c0b6 100644
--- a/libc/arch-x86_64/syscalls/sendmmsg.S
+++ b/libc/arch-x86_64/syscalls/sendmmsg.S
@@ -11,7 +11,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(sendmmsg)
diff --git a/libc/arch-x86_64/syscalls/sendmsg.S b/libc/arch-x86_64/syscalls/sendmsg.S
index e56e58c..6d94bb6 100644
--- a/libc/arch-x86_64/syscalls/sendmsg.S
+++ b/libc/arch-x86_64/syscalls/sendmsg.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(sendmsg)
diff --git a/libc/arch-x86_64/syscalls/sendto.S b/libc/arch-x86_64/syscalls/sendto.S
index f0c14b0..bfe4636 100644
--- a/libc/arch-x86_64/syscalls/sendto.S
+++ b/libc/arch-x86_64/syscalls/sendto.S
@@ -11,7 +11,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(sendto)
diff --git a/libc/arch-x86_64/syscalls/setgid.S b/libc/arch-x86_64/syscalls/setgid.S
index abaf343..ef4fb31 100644
--- a/libc/arch-x86_64/syscalls/setgid.S
+++ b/libc/arch-x86_64/syscalls/setgid.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(setgid)
diff --git a/libc/arch-x86_64/syscalls/setgroups.S b/libc/arch-x86_64/syscalls/setgroups.S
index 4bbc7ec..65e6180 100644
--- a/libc/arch-x86_64/syscalls/setgroups.S
+++ b/libc/arch-x86_64/syscalls/setgroups.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(setgroups)
diff --git a/libc/arch-x86_64/syscalls/setitimer.S b/libc/arch-x86_64/syscalls/setitimer.S
index da81d0b..bee4996 100644
--- a/libc/arch-x86_64/syscalls/setitimer.S
+++ b/libc/arch-x86_64/syscalls/setitimer.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(setitimer)
diff --git a/libc/arch-x86_64/syscalls/setns.S b/libc/arch-x86_64/syscalls/setns.S
index bab147b..521769b 100644
--- a/libc/arch-x86_64/syscalls/setns.S
+++ b/libc/arch-x86_64/syscalls/setns.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(setns)
diff --git a/libc/arch-x86_64/syscalls/setpgid.S b/libc/arch-x86_64/syscalls/setpgid.S
index 6dfefa3..348612b 100644
--- a/libc/arch-x86_64/syscalls/setpgid.S
+++ b/libc/arch-x86_64/syscalls/setpgid.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(setpgid)
diff --git a/libc/arch-x86_64/syscalls/setpriority.S b/libc/arch-x86_64/syscalls/setpriority.S
index 89770e9..0940368 100644
--- a/libc/arch-x86_64/syscalls/setpriority.S
+++ b/libc/arch-x86_64/syscalls/setpriority.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(setpriority)
diff --git a/libc/arch-x86_64/syscalls/setregid.S b/libc/arch-x86_64/syscalls/setregid.S
index 9eaa7e9..0338ecf 100644
--- a/libc/arch-x86_64/syscalls/setregid.S
+++ b/libc/arch-x86_64/syscalls/setregid.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(setregid)
diff --git a/libc/arch-x86_64/syscalls/setresgid.S b/libc/arch-x86_64/syscalls/setresgid.S
index 95206b3..10e1244 100644
--- a/libc/arch-x86_64/syscalls/setresgid.S
+++ b/libc/arch-x86_64/syscalls/setresgid.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(setresgid)
diff --git a/libc/arch-x86_64/syscalls/setresuid.S b/libc/arch-x86_64/syscalls/setresuid.S
index c42dda9..229b11b 100644
--- a/libc/arch-x86_64/syscalls/setresuid.S
+++ b/libc/arch-x86_64/syscalls/setresuid.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(setresuid)
diff --git a/libc/arch-x86_64/syscalls/setreuid.S b/libc/arch-x86_64/syscalls/setreuid.S
index 935f751..e96e2d3 100644
--- a/libc/arch-x86_64/syscalls/setreuid.S
+++ b/libc/arch-x86_64/syscalls/setreuid.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(setreuid)
diff --git a/libc/arch-x86_64/syscalls/setrlimit.S b/libc/arch-x86_64/syscalls/setrlimit.S
index dd393ae..662587d 100644
--- a/libc/arch-x86_64/syscalls/setrlimit.S
+++ b/libc/arch-x86_64/syscalls/setrlimit.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(setrlimit)
diff --git a/libc/arch-x86_64/syscalls/setsid.S b/libc/arch-x86_64/syscalls/setsid.S
index 9c50a89..293ecf5 100644
--- a/libc/arch-x86_64/syscalls/setsid.S
+++ b/libc/arch-x86_64/syscalls/setsid.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(setsid)
diff --git a/libc/arch-x86_64/syscalls/setsockopt.S b/libc/arch-x86_64/syscalls/setsockopt.S
index 2332ec9..aee6613 100644
--- a/libc/arch-x86_64/syscalls/setsockopt.S
+++ b/libc/arch-x86_64/syscalls/setsockopt.S
@@ -11,7 +11,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(setsockopt)
diff --git a/libc/arch-x86_64/syscalls/settimeofday.S b/libc/arch-x86_64/syscalls/settimeofday.S
index 121c0b6..0d00c89 100644
--- a/libc/arch-x86_64/syscalls/settimeofday.S
+++ b/libc/arch-x86_64/syscalls/settimeofday.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(settimeofday)
diff --git a/libc/arch-x86_64/syscalls/setuid.S b/libc/arch-x86_64/syscalls/setuid.S
index f426705..19e2a10 100644
--- a/libc/arch-x86_64/syscalls/setuid.S
+++ b/libc/arch-x86_64/syscalls/setuid.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(setuid)
diff --git a/libc/arch-x86_64/syscalls/setxattr.S b/libc/arch-x86_64/syscalls/setxattr.S
index c02aa84..3e4d50b 100644
--- a/libc/arch-x86_64/syscalls/setxattr.S
+++ b/libc/arch-x86_64/syscalls/setxattr.S
@@ -11,7 +11,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(setxattr)
diff --git a/libc/arch-x86_64/syscalls/shutdown.S b/libc/arch-x86_64/syscalls/shutdown.S
index 96a65f8..346be33 100644
--- a/libc/arch-x86_64/syscalls/shutdown.S
+++ b/libc/arch-x86_64/syscalls/shutdown.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(shutdown)
diff --git a/libc/arch-x86_64/syscalls/sigaltstack.S b/libc/arch-x86_64/syscalls/sigaltstack.S
index 57dc41a..271fafc 100644
--- a/libc/arch-x86_64/syscalls/sigaltstack.S
+++ b/libc/arch-x86_64/syscalls/sigaltstack.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(sigaltstack)
diff --git a/libc/arch-x86_64/syscalls/socketpair.S b/libc/arch-x86_64/syscalls/socketpair.S
index 4e76e83..5466dc9 100644
--- a/libc/arch-x86_64/syscalls/socketpair.S
+++ b/libc/arch-x86_64/syscalls/socketpair.S
@@ -11,7 +11,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(socketpair)
diff --git a/libc/arch-x86_64/syscalls/statfs64.S b/libc/arch-x86_64/syscalls/statfs64.S
index 9341d43..6a2637c 100644
--- a/libc/arch-x86_64/syscalls/statfs64.S
+++ b/libc/arch-x86_64/syscalls/statfs64.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(statfs64)
diff --git a/libc/arch-x86_64/syscalls/swapoff.S b/libc/arch-x86_64/syscalls/swapoff.S
index 2f2dafe..7e55758 100644
--- a/libc/arch-x86_64/syscalls/swapoff.S
+++ b/libc/arch-x86_64/syscalls/swapoff.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(swapoff)
diff --git a/libc/arch-x86_64/syscalls/swapon.S b/libc/arch-x86_64/syscalls/swapon.S
index 3db7921..d2f5f66 100644
--- a/libc/arch-x86_64/syscalls/swapon.S
+++ b/libc/arch-x86_64/syscalls/swapon.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(swapon)
diff --git a/libc/arch-x86_64/syscalls/symlinkat.S b/libc/arch-x86_64/syscalls/symlinkat.S
index 54b4d4e..5bbf1cb 100644
--- a/libc/arch-x86_64/syscalls/symlinkat.S
+++ b/libc/arch-x86_64/syscalls/symlinkat.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(symlinkat)
diff --git a/libc/arch-x86_64/syscalls/sync.S b/libc/arch-x86_64/syscalls/sync.S
index f58c788..9911715 100644
--- a/libc/arch-x86_64/syscalls/sync.S
+++ b/libc/arch-x86_64/syscalls/sync.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(sync)
diff --git a/libc/arch-x86_64/syscalls/sysinfo.S b/libc/arch-x86_64/syscalls/sysinfo.S
index d483693..104bb2c 100644
--- a/libc/arch-x86_64/syscalls/sysinfo.S
+++ b/libc/arch-x86_64/syscalls/sysinfo.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(sysinfo)
diff --git a/libc/arch-x86_64/syscalls/tgkill.S b/libc/arch-x86_64/syscalls/tgkill.S
index 7d217b0..e3b9972 100644
--- a/libc/arch-x86_64/syscalls/tgkill.S
+++ b/libc/arch-x86_64/syscalls/tgkill.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(tgkill)
diff --git a/libc/arch-x86_64/syscalls/timerfd_create.S b/libc/arch-x86_64/syscalls/timerfd_create.S
index a518e4f..3f1b23a 100644
--- a/libc/arch-x86_64/syscalls/timerfd_create.S
+++ b/libc/arch-x86_64/syscalls/timerfd_create.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(timerfd_create)
diff --git a/libc/arch-x86_64/syscalls/timerfd_gettime.S b/libc/arch-x86_64/syscalls/timerfd_gettime.S
index 1d0853a..b1017ad 100644
--- a/libc/arch-x86_64/syscalls/timerfd_gettime.S
+++ b/libc/arch-x86_64/syscalls/timerfd_gettime.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(timerfd_gettime)
diff --git a/libc/arch-x86_64/syscalls/timerfd_settime.S b/libc/arch-x86_64/syscalls/timerfd_settime.S
index a23af4e..8610a1d 100644
--- a/libc/arch-x86_64/syscalls/timerfd_settime.S
+++ b/libc/arch-x86_64/syscalls/timerfd_settime.S
@@ -11,7 +11,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(timerfd_settime)
diff --git a/libc/arch-x86_64/syscalls/times.S b/libc/arch-x86_64/syscalls/times.S
index 520d062..07590b9 100644
--- a/libc/arch-x86_64/syscalls/times.S
+++ b/libc/arch-x86_64/syscalls/times.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(times)
diff --git a/libc/arch-x86_64/syscalls/truncate.S b/libc/arch-x86_64/syscalls/truncate.S
index dfb6687..db2121f 100644
--- a/libc/arch-x86_64/syscalls/truncate.S
+++ b/libc/arch-x86_64/syscalls/truncate.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(truncate)
diff --git a/libc/arch-x86_64/syscalls/umask.S b/libc/arch-x86_64/syscalls/umask.S
index 360ad71..badea76 100644
--- a/libc/arch-x86_64/syscalls/umask.S
+++ b/libc/arch-x86_64/syscalls/umask.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(umask)
diff --git a/libc/arch-x86_64/syscalls/umount2.S b/libc/arch-x86_64/syscalls/umount2.S
index e2de44b..93e6fa0 100644
--- a/libc/arch-x86_64/syscalls/umount2.S
+++ b/libc/arch-x86_64/syscalls/umount2.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(umount2)
diff --git a/libc/arch-x86_64/syscalls/uname.S b/libc/arch-x86_64/syscalls/uname.S
index 8ad40fa..4b0d1c5 100644
--- a/libc/arch-x86_64/syscalls/uname.S
+++ b/libc/arch-x86_64/syscalls/uname.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(uname)
diff --git a/libc/arch-x86_64/syscalls/unlinkat.S b/libc/arch-x86_64/syscalls/unlinkat.S
index 83bb59f..f322f7d 100644
--- a/libc/arch-x86_64/syscalls/unlinkat.S
+++ b/libc/arch-x86_64/syscalls/unlinkat.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(unlinkat)
diff --git a/libc/arch-x86_64/syscalls/unshare.S b/libc/arch-x86_64/syscalls/unshare.S
index 044af99..b5395c1 100644
--- a/libc/arch-x86_64/syscalls/unshare.S
+++ b/libc/arch-x86_64/syscalls/unshare.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(unshare)
diff --git a/libc/arch-x86_64/syscalls/utimensat.S b/libc/arch-x86_64/syscalls/utimensat.S
index 4d263ff..f90caf2 100644
--- a/libc/arch-x86_64/syscalls/utimensat.S
+++ b/libc/arch-x86_64/syscalls/utimensat.S
@@ -11,7 +11,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(utimensat)
diff --git a/libc/arch-x86_64/syscalls/wait4.S b/libc/arch-x86_64/syscalls/wait4.S
index 7de78ac..7948331 100644
--- a/libc/arch-x86_64/syscalls/wait4.S
+++ b/libc/arch-x86_64/syscalls/wait4.S
@@ -11,7 +11,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(wait4)
diff --git a/libc/arch-x86_64/syscalls/write.S b/libc/arch-x86_64/syscalls/write.S
index eab3904..7e3a563 100644
--- a/libc/arch-x86_64/syscalls/write.S
+++ b/libc/arch-x86_64/syscalls/write.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(write)
diff --git a/libc/arch-x86_64/syscalls/writev.S b/libc/arch-x86_64/syscalls/writev.S
index b21e3d6..5fc040a 100644
--- a/libc/arch-x86_64/syscalls/writev.S
+++ b/libc/arch-x86_64/syscalls/writev.S
@@ -10,7 +10,6 @@
     negl    %eax
     movl    %eax, %edi
     call    __set_errno
-    orq     $-1, %rax
 1:
     ret
 END(writev)
diff --git a/libc/arch-x86_64/x86_64.mk b/libc/arch-x86_64/x86_64.mk
index 2f0cf2d..bd5e9c1 100644
--- a/libc/arch-x86_64/x86_64.mk
+++ b/libc/arch-x86_64/x86_64.mk
@@ -1,7 +1,6 @@
 # x86_64 specific configs
 
 libc_common_src_files_x86_64 := \
-    bionic/index.cpp \
     bionic/memchr.c \
     bionic/memrchr.c \
     bionic/strchr.cpp \
diff --git a/libc/bionic/ndk_cruft.cpp b/libc/bionic/ndk_cruft.cpp
index ed60ea4..cb9c9c9 100644
--- a/libc/bionic/ndk_cruft.cpp
+++ b/libc/bionic/ndk_cruft.cpp
@@ -32,6 +32,7 @@
 #include <ctype.h>
 #include <inttypes.h>
 #include <pthread.h>
+#include <signal.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <sys/resource.h>
@@ -226,4 +227,15 @@
   return wcsstr(haystack, needle);
 }
 
+// This was removed from POSIX 2008.
+extern "C" sighandler_t bsd_signal(int signum, sighandler_t handler) {
+  return signal(signum, handler);
+}
+
+// sysv_signal() was never in POSIX.
+extern sighandler_t _signal(int signum, sighandler_t handler, int flags);
+extern "C" sighandler_t sysv_signal(int signum, sighandler_t handler) {
+  return _signal(signum, handler, SA_RESETHAND);
+}
+
 #endif
diff --git a/libc/bionic/signal.cpp b/libc/bionic/signal.cpp
index 48b2e72..66d75bd 100644
--- a/libc/bionic/signal.cpp
+++ b/libc/bionic/signal.cpp
@@ -28,7 +28,12 @@
 
 #include <signal.h>
 
-static sighandler_t _signal(int signum, sighandler_t handler, int flags) {
+#ifdef __LP64__
+static
+#else
+__LIBC_HIDDEN__
+#endif
+sighandler_t _signal(int signum, sighandler_t handler, int flags) {
   struct sigaction sa;
   sigemptyset(&sa.sa_mask);
   sa.sa_handler = handler;
@@ -41,14 +46,6 @@
   return (sighandler_t) sa.sa_handler;
 }
 
-sighandler_t bsd_signal(int signum, sighandler_t handler) {
-  return _signal(signum, handler, SA_RESTART);
-}
-
-sighandler_t sysv_signal(int signum, sighandler_t handler) {
-  return _signal(signum, handler, SA_RESETHAND);
-}
-
 sighandler_t signal(int signum, sighandler_t handler) {
-  return bsd_signal(signum, handler);
+  return _signal(signum, handler, SA_RESTART);
 }
diff --git a/libc/include/signal.h b/libc/include/signal.h
index 45c1cda..0063b24 100644
--- a/libc/include/signal.h
+++ b/libc/include/signal.h
@@ -102,8 +102,6 @@
 extern int sigaction(int, const struct sigaction*, struct sigaction*);
 
 extern sighandler_t signal(int, sighandler_t);
-extern sighandler_t bsd_signal(int, sighandler_t);
-extern sighandler_t sysv_signal(int, sighandler_t);
 
 extern int siginterrupt(int, int);
 
diff --git a/libc/include/string.h b/libc/include/string.h
index c9ae03b..7727c0e 100644
--- a/libc/include/string.h
+++ b/libc/include/string.h
@@ -43,7 +43,6 @@
 extern void*  memset(void *, int, size_t);
 extern void*  memmem(const void *, size_t, const void *, size_t) __purefunc;
 
-extern char*  index(const char *, int) __purefunc;
 extern char*  strchr(const char *, int) __purefunc;
 extern char* __strchr_chk(const char *, int, size_t);
 
diff --git a/libc/include/strings.h b/libc/include/strings.h
index 8f5fec5..c4d5f6c 100644
--- a/libc/include/strings.h
+++ b/libc/include/strings.h
@@ -47,7 +47,6 @@
 #define bzero(b, len) (void)(memset((b), '\0', (len)))
 
 int	 ffs(int);
-char	*index(const char *, int);
 int	 strcasecmp(const char *, const char *);
 int	 strncasecmp(const char *, const char *, size_t);
 
diff --git a/libc/tools/gensyscalls.py b/libc/tools/gensyscalls.py
index 5e4ddc5..a34b763 100755
--- a/libc/tools/gensyscalls.py
+++ b/libc/tools/gensyscalls.py
@@ -183,7 +183,6 @@
     pushl   %%eax
     call    __set_errno
     addl    $4, %%esp
-    orl     $-1, %%eax
 1:
 """
 
@@ -205,7 +204,6 @@
     negl    %%eax
     movl    %%eax, %%edi
     call    __set_errno
-    orq     $-1, %%rax
 1:
     ret
 END(%(func)s)
diff --git a/tests/string_test.cpp b/tests/string_test.cpp
index f17e575..c62f43b 100644
--- a/tests/string_test.cpp
+++ b/tests/string_test.cpp
@@ -909,6 +909,35 @@
   }
 }
 
+TEST(string, memmove_cache_size) {
+  size_t len = 600000;
+  int max_alignment = 31;
+  int alignments[] = {0, 5, 11, 29, 30};
+  char* ptr = reinterpret_cast<char*>(malloc(sizeof(char) * len));
+  char* ptr1 = reinterpret_cast<char*>(malloc(2 * sizeof(char) * len));
+  char* glob_ptr2 = reinterpret_cast<char*>(malloc(2 * sizeof(char) * len + max_alignment));
+  size_t pos = 64;
+
+  ASSERT_TRUE(ptr != NULL);
+  ASSERT_TRUE(ptr1 != NULL);
+  ASSERT_TRUE(glob_ptr2 != NULL);
+
+  for (int i = 0; i < 5; i++) {
+    char* ptr2 = glob_ptr2 + alignments[i];
+    memset(ptr1, random() & 255, 2 * len);
+    memset(ptr1, random() & 255, len);
+    memcpy(ptr2, ptr1, 2 * len);
+    memcpy(ptr, ptr1, len);
+    memcpy(ptr1 + pos, ptr, len);
+
+    ASSERT_TRUE(memmove(ptr2 + pos, ptr, len) == ptr2 + pos);
+    ASSERT_EQ(0, memcmp(ptr2, ptr1, 2 * len));
+  }
+  free(ptr);
+  free(ptr1);
+  free(glob_ptr2);
+}
+
 static void verify_memmove(char* src_copy, char* dst, char* src, size_t size) {
   memset(dst, 0, size);
   memcpy(src, src_copy, size);