diff --git a/benchmarks/math_benchmark.cpp b/benchmarks/math_benchmark.cpp
index 3602de4..a9748cd 100644
--- a/benchmarks/math_benchmark.cpp
+++ b/benchmarks/math_benchmark.cpp
@@ -16,6 +16,7 @@
 
 #include "benchmark.h"
 
+#include <fenv.h>
 #include <math.h>
 
 // Avoid optimization.
@@ -113,10 +114,49 @@
 }
 BENCHMARK(BM_math_isinf_ZERO);
 
+static void BM_math_sin_fast(int iters) {
+  StartBenchmarkTiming();
 
+  d = 1.0;
+  for (int i = 0; i < iters; ++i) {
+    d += sin(d);
+  }
 
+  StopBenchmarkTiming();
+}
+BENCHMARK(BM_math_sin_fast);
 
+static void BM_math_sin_feupdateenv(int iters) {
+  StartBenchmarkTiming();
 
+  d = 1.0;
+  for (int i = 0; i < iters; ++i) {
+    fenv_t __libc_save_rm;
+    feholdexcept(&__libc_save_rm);
+    fesetround(FE_TONEAREST);
+    d += sin(d);
+    feupdateenv(&__libc_save_rm);
+  }
+
+  StopBenchmarkTiming();
+}
+BENCHMARK(BM_math_sin_feupdateenv);
+
+static void BM_math_sin_fesetenv(int iters) {
+  StartBenchmarkTiming();
+
+  d = 1.0;
+  for (int i = 0; i < iters; ++i) {
+    fenv_t __libc_save_rm;
+    feholdexcept(&__libc_save_rm);
+    fesetround(FE_TONEAREST);
+    d += sin(d);
+    fesetenv(&__libc_save_rm);
+  }
+
+  StopBenchmarkTiming();
+}
+BENCHMARK(BM_math_sin_fesetenv);
 
 static void BM_math_fpclassify_NORMAL(int iters) {
   StartBenchmarkTiming();
diff --git a/libc/arch-arm64/bionic/__bionic_clone.S b/libc/arch-arm64/bionic/__bionic_clone.S
index 76fe24e..74db4b5 100644
--- a/libc/arch-arm64/bionic/__bionic_clone.S
+++ b/libc/arch-arm64/bionic/__bionic_clone.S
@@ -31,12 +31,6 @@
 // pid_t __bionic_clone(int flags, void* child_stack, pid_t* parent_tid, void* tls, pid_t* child_tid, int (*fn)(void*), void* arg);
 
 ENTRY(__bionic_clone)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     # Copy 'fn' and 'arg' onto the child stack.
     stp     x5, x6, [x1, #-16]
 
@@ -47,11 +41,6 @@
     # Are we the child?
     cbz     x0, .L_bc_child
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     # Set errno if something went wrong.
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
diff --git a/libc/arch-arm64/bionic/syscall.S b/libc/arch-arm64/bionic/syscall.S
index 42e8883..658af78 100644
--- a/libc/arch-arm64/bionic/syscall.S
+++ b/libc/arch-arm64/bionic/syscall.S
@@ -29,13 +29,6 @@
 #include <private/bionic_asm.h>
 
 ENTRY(syscall)
-    /* create AAPCS frame pointer */
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     /* Move syscall No. from x0 to x8 */
     mov     x8, x0
     /* Move syscall parameters from x1 thru x6 to x0 thru x5 */
@@ -47,11 +40,6 @@
     mov     x5, x6
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     /* check if syscall returned successfully */
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
diff --git a/libc/arch-arm64/syscalls/__accept4.S b/libc/arch-arm64/syscalls/__accept4.S
index 34f2c52..1c2a674 100644
--- a/libc/arch-arm64/syscalls/__accept4.S
+++ b/libc/arch-arm64/syscalls/__accept4.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(__accept4)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_accept4
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/__brk.S b/libc/arch-arm64/syscalls/__brk.S
index fb63fb9..85ed767 100644
--- a/libc/arch-arm64/syscalls/__brk.S
+++ b/libc/arch-arm64/syscalls/__brk.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(__brk)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_brk
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/__connect.S b/libc/arch-arm64/syscalls/__connect.S
index e578ccc..0d664f0 100644
--- a/libc/arch-arm64/syscalls/__connect.S
+++ b/libc/arch-arm64/syscalls/__connect.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(__connect)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_connect
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/__epoll_pwait.S b/libc/arch-arm64/syscalls/__epoll_pwait.S
index 57b01c2..45275c0 100644
--- a/libc/arch-arm64/syscalls/__epoll_pwait.S
+++ b/libc/arch-arm64/syscalls/__epoll_pwait.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(__epoll_pwait)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_epoll_pwait
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/__exit.S b/libc/arch-arm64/syscalls/__exit.S
index 8600b13..e358513 100644
--- a/libc/arch-arm64/syscalls/__exit.S
+++ b/libc/arch-arm64/syscalls/__exit.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(__exit)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_exit
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/__getcpu.S b/libc/arch-arm64/syscalls/__getcpu.S
index e81ba23..5e4368f 100644
--- a/libc/arch-arm64/syscalls/__getcpu.S
+++ b/libc/arch-arm64/syscalls/__getcpu.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(__getcpu)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_getcpu
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/__getcwd.S b/libc/arch-arm64/syscalls/__getcwd.S
index fc48f80..bd4fbaa 100644
--- a/libc/arch-arm64/syscalls/__getcwd.S
+++ b/libc/arch-arm64/syscalls/__getcwd.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(__getcwd)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_getcwd
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/__getdents64.S b/libc/arch-arm64/syscalls/__getdents64.S
index 9c65918..bf0f9a4 100644
--- a/libc/arch-arm64/syscalls/__getdents64.S
+++ b/libc/arch-arm64/syscalls/__getdents64.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(__getdents64)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_getdents64
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/__getpriority.S b/libc/arch-arm64/syscalls/__getpriority.S
index 486ea8f..57ceabf 100644
--- a/libc/arch-arm64/syscalls/__getpriority.S
+++ b/libc/arch-arm64/syscalls/__getpriority.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(__getpriority)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_getpriority
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/__ioctl.S b/libc/arch-arm64/syscalls/__ioctl.S
index 30ff73c..f632555 100644
--- a/libc/arch-arm64/syscalls/__ioctl.S
+++ b/libc/arch-arm64/syscalls/__ioctl.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(__ioctl)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_ioctl
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/__openat.S b/libc/arch-arm64/syscalls/__openat.S
index 22e2f6a..e1b0da3 100644
--- a/libc/arch-arm64/syscalls/__openat.S
+++ b/libc/arch-arm64/syscalls/__openat.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(__openat)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_openat
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/__ppoll.S b/libc/arch-arm64/syscalls/__ppoll.S
index 1739dea..31e5578 100644
--- a/libc/arch-arm64/syscalls/__ppoll.S
+++ b/libc/arch-arm64/syscalls/__ppoll.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(__ppoll)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_ppoll
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/__pselect6.S b/libc/arch-arm64/syscalls/__pselect6.S
index 2770164..b0e4770 100644
--- a/libc/arch-arm64/syscalls/__pselect6.S
+++ b/libc/arch-arm64/syscalls/__pselect6.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(__pselect6)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_pselect6
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/__ptrace.S b/libc/arch-arm64/syscalls/__ptrace.S
index 3746530..054bb6f 100644
--- a/libc/arch-arm64/syscalls/__ptrace.S
+++ b/libc/arch-arm64/syscalls/__ptrace.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(__ptrace)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_ptrace
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/__reboot.S b/libc/arch-arm64/syscalls/__reboot.S
index b1ea418..e24553c 100644
--- a/libc/arch-arm64/syscalls/__reboot.S
+++ b/libc/arch-arm64/syscalls/__reboot.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(__reboot)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_reboot
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/__rt_sigaction.S b/libc/arch-arm64/syscalls/__rt_sigaction.S
index 33e07cb..3d84544 100644
--- a/libc/arch-arm64/syscalls/__rt_sigaction.S
+++ b/libc/arch-arm64/syscalls/__rt_sigaction.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(__rt_sigaction)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_rt_sigaction
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/__rt_sigpending.S b/libc/arch-arm64/syscalls/__rt_sigpending.S
index fa6812e..60f0a10 100644
--- a/libc/arch-arm64/syscalls/__rt_sigpending.S
+++ b/libc/arch-arm64/syscalls/__rt_sigpending.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(__rt_sigpending)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_rt_sigpending
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/__rt_sigprocmask.S b/libc/arch-arm64/syscalls/__rt_sigprocmask.S
index 537f8bd..7f5b3ac 100644
--- a/libc/arch-arm64/syscalls/__rt_sigprocmask.S
+++ b/libc/arch-arm64/syscalls/__rt_sigprocmask.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(__rt_sigprocmask)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_rt_sigprocmask
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/__rt_sigsuspend.S b/libc/arch-arm64/syscalls/__rt_sigsuspend.S
index b8a99c6..08b1197 100644
--- a/libc/arch-arm64/syscalls/__rt_sigsuspend.S
+++ b/libc/arch-arm64/syscalls/__rt_sigsuspend.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(__rt_sigsuspend)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_rt_sigsuspend
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/__rt_sigtimedwait.S b/libc/arch-arm64/syscalls/__rt_sigtimedwait.S
index 869442c..8bc9a7a 100644
--- a/libc/arch-arm64/syscalls/__rt_sigtimedwait.S
+++ b/libc/arch-arm64/syscalls/__rt_sigtimedwait.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(__rt_sigtimedwait)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_rt_sigtimedwait
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/__sched_getaffinity.S b/libc/arch-arm64/syscalls/__sched_getaffinity.S
index 8ca23d4..c0d392c 100644
--- a/libc/arch-arm64/syscalls/__sched_getaffinity.S
+++ b/libc/arch-arm64/syscalls/__sched_getaffinity.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(__sched_getaffinity)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_sched_getaffinity
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/__set_tid_address.S b/libc/arch-arm64/syscalls/__set_tid_address.S
index 5514aed..296c907 100644
--- a/libc/arch-arm64/syscalls/__set_tid_address.S
+++ b/libc/arch-arm64/syscalls/__set_tid_address.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(__set_tid_address)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_set_tid_address
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/__signalfd4.S b/libc/arch-arm64/syscalls/__signalfd4.S
index ea49fc5..3932003 100644
--- a/libc/arch-arm64/syscalls/__signalfd4.S
+++ b/libc/arch-arm64/syscalls/__signalfd4.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(__signalfd4)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_signalfd4
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/__socket.S b/libc/arch-arm64/syscalls/__socket.S
index f96a1ab..db7f2aa 100644
--- a/libc/arch-arm64/syscalls/__socket.S
+++ b/libc/arch-arm64/syscalls/__socket.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(__socket)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_socket
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/__timer_create.S b/libc/arch-arm64/syscalls/__timer_create.S
index 87183b4..a5e69e3 100644
--- a/libc/arch-arm64/syscalls/__timer_create.S
+++ b/libc/arch-arm64/syscalls/__timer_create.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(__timer_create)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_timer_create
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/__timer_delete.S b/libc/arch-arm64/syscalls/__timer_delete.S
index c21ec4f..44a7481 100644
--- a/libc/arch-arm64/syscalls/__timer_delete.S
+++ b/libc/arch-arm64/syscalls/__timer_delete.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(__timer_delete)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_timer_delete
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/__timer_getoverrun.S b/libc/arch-arm64/syscalls/__timer_getoverrun.S
index 47f1ef9..e1d959a 100644
--- a/libc/arch-arm64/syscalls/__timer_getoverrun.S
+++ b/libc/arch-arm64/syscalls/__timer_getoverrun.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(__timer_getoverrun)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_timer_getoverrun
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/__timer_gettime.S b/libc/arch-arm64/syscalls/__timer_gettime.S
index 4eaa655..7632290 100644
--- a/libc/arch-arm64/syscalls/__timer_gettime.S
+++ b/libc/arch-arm64/syscalls/__timer_gettime.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(__timer_gettime)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_timer_gettime
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/__timer_settime.S b/libc/arch-arm64/syscalls/__timer_settime.S
index aef0cc4..92e4a76 100644
--- a/libc/arch-arm64/syscalls/__timer_settime.S
+++ b/libc/arch-arm64/syscalls/__timer_settime.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(__timer_settime)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_timer_settime
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/__waitid.S b/libc/arch-arm64/syscalls/__waitid.S
index 6d9e940..9267239 100644
--- a/libc/arch-arm64/syscalls/__waitid.S
+++ b/libc/arch-arm64/syscalls/__waitid.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(__waitid)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_waitid
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/_exit.S b/libc/arch-arm64/syscalls/_exit.S
index 37d1499..38b073b 100644
--- a/libc/arch-arm64/syscalls/_exit.S
+++ b/libc/arch-arm64/syscalls/_exit.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(_exit)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_exit_group
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/acct.S b/libc/arch-arm64/syscalls/acct.S
index f391cd8..15e3086 100644
--- a/libc/arch-arm64/syscalls/acct.S
+++ b/libc/arch-arm64/syscalls/acct.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(acct)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_acct
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/bind.S b/libc/arch-arm64/syscalls/bind.S
index 10dd01f..b3925db 100644
--- a/libc/arch-arm64/syscalls/bind.S
+++ b/libc/arch-arm64/syscalls/bind.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(bind)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_bind
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/capget.S b/libc/arch-arm64/syscalls/capget.S
index d01dc47..b897e5d 100644
--- a/libc/arch-arm64/syscalls/capget.S
+++ b/libc/arch-arm64/syscalls/capget.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(capget)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_capget
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/capset.S b/libc/arch-arm64/syscalls/capset.S
index c4ed92e..1d94aa3 100644
--- a/libc/arch-arm64/syscalls/capset.S
+++ b/libc/arch-arm64/syscalls/capset.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(capset)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_capset
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/chdir.S b/libc/arch-arm64/syscalls/chdir.S
index 6f1baf0..a7bf6c2 100644
--- a/libc/arch-arm64/syscalls/chdir.S
+++ b/libc/arch-arm64/syscalls/chdir.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(chdir)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_chdir
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/chroot.S b/libc/arch-arm64/syscalls/chroot.S
index b15f04a..98bd5d1 100644
--- a/libc/arch-arm64/syscalls/chroot.S
+++ b/libc/arch-arm64/syscalls/chroot.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(chroot)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_chroot
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/clock_getres.S b/libc/arch-arm64/syscalls/clock_getres.S
index b18c10b..b6e7e56 100644
--- a/libc/arch-arm64/syscalls/clock_getres.S
+++ b/libc/arch-arm64/syscalls/clock_getres.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(clock_getres)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_clock_getres
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/clock_gettime.S b/libc/arch-arm64/syscalls/clock_gettime.S
index b3518c1..ffdde57 100644
--- a/libc/arch-arm64/syscalls/clock_gettime.S
+++ b/libc/arch-arm64/syscalls/clock_gettime.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(clock_gettime)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_clock_gettime
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/clock_nanosleep.S b/libc/arch-arm64/syscalls/clock_nanosleep.S
index eddf6f1..b64ff68 100644
--- a/libc/arch-arm64/syscalls/clock_nanosleep.S
+++ b/libc/arch-arm64/syscalls/clock_nanosleep.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(clock_nanosleep)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_clock_nanosleep
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/clock_settime.S b/libc/arch-arm64/syscalls/clock_settime.S
index c6ba5c0..adc1680 100644
--- a/libc/arch-arm64/syscalls/clock_settime.S
+++ b/libc/arch-arm64/syscalls/clock_settime.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(clock_settime)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_clock_settime
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/close.S b/libc/arch-arm64/syscalls/close.S
index a623895..b4b72d9 100644
--- a/libc/arch-arm64/syscalls/close.S
+++ b/libc/arch-arm64/syscalls/close.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(close)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_close
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/delete_module.S b/libc/arch-arm64/syscalls/delete_module.S
index a57517d..ed51847 100644
--- a/libc/arch-arm64/syscalls/delete_module.S
+++ b/libc/arch-arm64/syscalls/delete_module.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(delete_module)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_delete_module
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/dup.S b/libc/arch-arm64/syscalls/dup.S
index b7e04ed..9584c51 100644
--- a/libc/arch-arm64/syscalls/dup.S
+++ b/libc/arch-arm64/syscalls/dup.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(dup)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_dup
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/dup3.S b/libc/arch-arm64/syscalls/dup3.S
index fada63d..e303fba 100644
--- a/libc/arch-arm64/syscalls/dup3.S
+++ b/libc/arch-arm64/syscalls/dup3.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(dup3)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_dup3
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/epoll_create1.S b/libc/arch-arm64/syscalls/epoll_create1.S
index 94990bf..4ca8bfa 100644
--- a/libc/arch-arm64/syscalls/epoll_create1.S
+++ b/libc/arch-arm64/syscalls/epoll_create1.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(epoll_create1)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_epoll_create1
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/epoll_ctl.S b/libc/arch-arm64/syscalls/epoll_ctl.S
index ea6f735..c1c0dba 100644
--- a/libc/arch-arm64/syscalls/epoll_ctl.S
+++ b/libc/arch-arm64/syscalls/epoll_ctl.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(epoll_ctl)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_epoll_ctl
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/eventfd.S b/libc/arch-arm64/syscalls/eventfd.S
index afa88b3..ace608e 100644
--- a/libc/arch-arm64/syscalls/eventfd.S
+++ b/libc/arch-arm64/syscalls/eventfd.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(eventfd)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_eventfd2
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/execve.S b/libc/arch-arm64/syscalls/execve.S
index 031b6d4..ab0cb57 100644
--- a/libc/arch-arm64/syscalls/execve.S
+++ b/libc/arch-arm64/syscalls/execve.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(execve)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_execve
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/faccessat.S b/libc/arch-arm64/syscalls/faccessat.S
index cebbf18..30a3852 100644
--- a/libc/arch-arm64/syscalls/faccessat.S
+++ b/libc/arch-arm64/syscalls/faccessat.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(faccessat)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_faccessat
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/fallocate.S b/libc/arch-arm64/syscalls/fallocate.S
index 94832aa..3092b34 100644
--- a/libc/arch-arm64/syscalls/fallocate.S
+++ b/libc/arch-arm64/syscalls/fallocate.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(fallocate)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_fallocate
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/fchdir.S b/libc/arch-arm64/syscalls/fchdir.S
index afba3c1..f7687f8 100644
--- a/libc/arch-arm64/syscalls/fchdir.S
+++ b/libc/arch-arm64/syscalls/fchdir.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(fchdir)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_fchdir
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/fchmod.S b/libc/arch-arm64/syscalls/fchmod.S
index 35f9dec..acc6718 100644
--- a/libc/arch-arm64/syscalls/fchmod.S
+++ b/libc/arch-arm64/syscalls/fchmod.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(fchmod)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_fchmod
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/fchmodat.S b/libc/arch-arm64/syscalls/fchmodat.S
index 59bfb8a..23c2fd5 100644
--- a/libc/arch-arm64/syscalls/fchmodat.S
+++ b/libc/arch-arm64/syscalls/fchmodat.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(fchmodat)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_fchmodat
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/fchown.S b/libc/arch-arm64/syscalls/fchown.S
index 2294187..8e9db62 100644
--- a/libc/arch-arm64/syscalls/fchown.S
+++ b/libc/arch-arm64/syscalls/fchown.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(fchown)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_fchown
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/fchownat.S b/libc/arch-arm64/syscalls/fchownat.S
index ff24187..3cf2c3d 100644
--- a/libc/arch-arm64/syscalls/fchownat.S
+++ b/libc/arch-arm64/syscalls/fchownat.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(fchownat)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_fchownat
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/fcntl.S b/libc/arch-arm64/syscalls/fcntl.S
index a9d6976..45eff74 100644
--- a/libc/arch-arm64/syscalls/fcntl.S
+++ b/libc/arch-arm64/syscalls/fcntl.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(fcntl)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_fcntl
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/fdatasync.S b/libc/arch-arm64/syscalls/fdatasync.S
index 4cf4de3..77b76c4 100644
--- a/libc/arch-arm64/syscalls/fdatasync.S
+++ b/libc/arch-arm64/syscalls/fdatasync.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(fdatasync)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_fdatasync
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/fgetxattr.S b/libc/arch-arm64/syscalls/fgetxattr.S
index 914ea7f..1f8edb6 100644
--- a/libc/arch-arm64/syscalls/fgetxattr.S
+++ b/libc/arch-arm64/syscalls/fgetxattr.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(fgetxattr)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_fgetxattr
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/flistxattr.S b/libc/arch-arm64/syscalls/flistxattr.S
index 2a64381..997529e 100644
--- a/libc/arch-arm64/syscalls/flistxattr.S
+++ b/libc/arch-arm64/syscalls/flistxattr.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(flistxattr)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_flistxattr
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/flock.S b/libc/arch-arm64/syscalls/flock.S
index 0d87233..0e1c3f5 100644
--- a/libc/arch-arm64/syscalls/flock.S
+++ b/libc/arch-arm64/syscalls/flock.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(flock)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_flock
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/fremovexattr.S b/libc/arch-arm64/syscalls/fremovexattr.S
index e2ef649..d43430f 100644
--- a/libc/arch-arm64/syscalls/fremovexattr.S
+++ b/libc/arch-arm64/syscalls/fremovexattr.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(fremovexattr)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_fremovexattr
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/fsetxattr.S b/libc/arch-arm64/syscalls/fsetxattr.S
index eb41951..f40f875 100644
--- a/libc/arch-arm64/syscalls/fsetxattr.S
+++ b/libc/arch-arm64/syscalls/fsetxattr.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(fsetxattr)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_fsetxattr
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/fstat64.S b/libc/arch-arm64/syscalls/fstat64.S
index ee0d9e7..9afe95b 100644
--- a/libc/arch-arm64/syscalls/fstat64.S
+++ b/libc/arch-arm64/syscalls/fstat64.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(fstat64)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_fstat
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/fstatat64.S b/libc/arch-arm64/syscalls/fstatat64.S
index 4ff3039..30efd3b 100644
--- a/libc/arch-arm64/syscalls/fstatat64.S
+++ b/libc/arch-arm64/syscalls/fstatat64.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(fstatat64)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_newfstatat
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/fstatfs64.S b/libc/arch-arm64/syscalls/fstatfs64.S
index b908b57..67ae67e 100644
--- a/libc/arch-arm64/syscalls/fstatfs64.S
+++ b/libc/arch-arm64/syscalls/fstatfs64.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(fstatfs64)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_fstatfs
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/fsync.S b/libc/arch-arm64/syscalls/fsync.S
index bac2e8b..e22589e 100644
--- a/libc/arch-arm64/syscalls/fsync.S
+++ b/libc/arch-arm64/syscalls/fsync.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(fsync)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_fsync
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/ftruncate.S b/libc/arch-arm64/syscalls/ftruncate.S
index ca4315a..b45a170 100644
--- a/libc/arch-arm64/syscalls/ftruncate.S
+++ b/libc/arch-arm64/syscalls/ftruncate.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(ftruncate)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_ftruncate
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/getegid.S b/libc/arch-arm64/syscalls/getegid.S
index 593f51d..675731c 100644
--- a/libc/arch-arm64/syscalls/getegid.S
+++ b/libc/arch-arm64/syscalls/getegid.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(getegid)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_getegid
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/geteuid.S b/libc/arch-arm64/syscalls/geteuid.S
index 845acbc..8d9461e 100644
--- a/libc/arch-arm64/syscalls/geteuid.S
+++ b/libc/arch-arm64/syscalls/geteuid.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(geteuid)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_geteuid
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/getgid.S b/libc/arch-arm64/syscalls/getgid.S
index 5f34355..4653fd8 100644
--- a/libc/arch-arm64/syscalls/getgid.S
+++ b/libc/arch-arm64/syscalls/getgid.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(getgid)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_getgid
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/getgroups.S b/libc/arch-arm64/syscalls/getgroups.S
index d0e2540..f22f1e9 100644
--- a/libc/arch-arm64/syscalls/getgroups.S
+++ b/libc/arch-arm64/syscalls/getgroups.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(getgroups)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_getgroups
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/getitimer.S b/libc/arch-arm64/syscalls/getitimer.S
index 2d4d541..25d0b38 100644
--- a/libc/arch-arm64/syscalls/getitimer.S
+++ b/libc/arch-arm64/syscalls/getitimer.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(getitimer)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_getitimer
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/getpeername.S b/libc/arch-arm64/syscalls/getpeername.S
index 1f64130..aefd0c5 100644
--- a/libc/arch-arm64/syscalls/getpeername.S
+++ b/libc/arch-arm64/syscalls/getpeername.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(getpeername)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_getpeername
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/getpgid.S b/libc/arch-arm64/syscalls/getpgid.S
index 01d876f..4c750fb 100644
--- a/libc/arch-arm64/syscalls/getpgid.S
+++ b/libc/arch-arm64/syscalls/getpgid.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(getpgid)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_getpgid
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/getpid.S b/libc/arch-arm64/syscalls/getpid.S
index 94b823c..1802ce8 100644
--- a/libc/arch-arm64/syscalls/getpid.S
+++ b/libc/arch-arm64/syscalls/getpid.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(getpid)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_getpid
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/getppid.S b/libc/arch-arm64/syscalls/getppid.S
index 0a46878..540ecc4 100644
--- a/libc/arch-arm64/syscalls/getppid.S
+++ b/libc/arch-arm64/syscalls/getppid.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(getppid)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_getppid
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/getresgid.S b/libc/arch-arm64/syscalls/getresgid.S
index bc121fc..3ce5799 100644
--- a/libc/arch-arm64/syscalls/getresgid.S
+++ b/libc/arch-arm64/syscalls/getresgid.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(getresgid)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_getresgid
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/getresuid.S b/libc/arch-arm64/syscalls/getresuid.S
index 28cd9a4..56851cc 100644
--- a/libc/arch-arm64/syscalls/getresuid.S
+++ b/libc/arch-arm64/syscalls/getresuid.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(getresuid)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_getresuid
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/getrlimit.S b/libc/arch-arm64/syscalls/getrlimit.S
index aa966ca..1f74773 100644
--- a/libc/arch-arm64/syscalls/getrlimit.S
+++ b/libc/arch-arm64/syscalls/getrlimit.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(getrlimit)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_getrlimit
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/getrusage.S b/libc/arch-arm64/syscalls/getrusage.S
index aaaf3a2..8154e4a 100644
--- a/libc/arch-arm64/syscalls/getrusage.S
+++ b/libc/arch-arm64/syscalls/getrusage.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(getrusage)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_getrusage
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/getsid.S b/libc/arch-arm64/syscalls/getsid.S
index e75b7b4..f99623f 100644
--- a/libc/arch-arm64/syscalls/getsid.S
+++ b/libc/arch-arm64/syscalls/getsid.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(getsid)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_getsid
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/getsockname.S b/libc/arch-arm64/syscalls/getsockname.S
index 61e4b4b..e8bc006 100644
--- a/libc/arch-arm64/syscalls/getsockname.S
+++ b/libc/arch-arm64/syscalls/getsockname.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(getsockname)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_getsockname
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/getsockopt.S b/libc/arch-arm64/syscalls/getsockopt.S
index 3740df9..4559d1d 100644
--- a/libc/arch-arm64/syscalls/getsockopt.S
+++ b/libc/arch-arm64/syscalls/getsockopt.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(getsockopt)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_getsockopt
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/gettimeofday.S b/libc/arch-arm64/syscalls/gettimeofday.S
index a72ac91..3b6104b 100644
--- a/libc/arch-arm64/syscalls/gettimeofday.S
+++ b/libc/arch-arm64/syscalls/gettimeofday.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(gettimeofday)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_gettimeofday
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/getuid.S b/libc/arch-arm64/syscalls/getuid.S
index d749cc3..4e37d47 100644
--- a/libc/arch-arm64/syscalls/getuid.S
+++ b/libc/arch-arm64/syscalls/getuid.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(getuid)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_getuid
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/getxattr.S b/libc/arch-arm64/syscalls/getxattr.S
index 451eef5..3f69956 100644
--- a/libc/arch-arm64/syscalls/getxattr.S
+++ b/libc/arch-arm64/syscalls/getxattr.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(getxattr)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_getxattr
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/init_module.S b/libc/arch-arm64/syscalls/init_module.S
index 42ec765..cc1a0da 100644
--- a/libc/arch-arm64/syscalls/init_module.S
+++ b/libc/arch-arm64/syscalls/init_module.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(init_module)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_init_module
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/inotify_add_watch.S b/libc/arch-arm64/syscalls/inotify_add_watch.S
index 066816c..fbc8dd4 100644
--- a/libc/arch-arm64/syscalls/inotify_add_watch.S
+++ b/libc/arch-arm64/syscalls/inotify_add_watch.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(inotify_add_watch)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_inotify_add_watch
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/inotify_init1.S b/libc/arch-arm64/syscalls/inotify_init1.S
index d6bee8c..5726d0c 100644
--- a/libc/arch-arm64/syscalls/inotify_init1.S
+++ b/libc/arch-arm64/syscalls/inotify_init1.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(inotify_init1)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_inotify_init1
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/inotify_rm_watch.S b/libc/arch-arm64/syscalls/inotify_rm_watch.S
index ee9c70f..37eabcf 100644
--- a/libc/arch-arm64/syscalls/inotify_rm_watch.S
+++ b/libc/arch-arm64/syscalls/inotify_rm_watch.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(inotify_rm_watch)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_inotify_rm_watch
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/ioprio_get.S b/libc/arch-arm64/syscalls/ioprio_get.S
index 4a4a749..7e394c6 100644
--- a/libc/arch-arm64/syscalls/ioprio_get.S
+++ b/libc/arch-arm64/syscalls/ioprio_get.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(ioprio_get)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_ioprio_get
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/ioprio_set.S b/libc/arch-arm64/syscalls/ioprio_set.S
index 8b48f12..ca43ed6 100644
--- a/libc/arch-arm64/syscalls/ioprio_set.S
+++ b/libc/arch-arm64/syscalls/ioprio_set.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(ioprio_set)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_ioprio_set
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/kill.S b/libc/arch-arm64/syscalls/kill.S
index 15c399b..7fc2c5a 100644
--- a/libc/arch-arm64/syscalls/kill.S
+++ b/libc/arch-arm64/syscalls/kill.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(kill)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_kill
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/klogctl.S b/libc/arch-arm64/syscalls/klogctl.S
index 1d161ec..abbee55 100644
--- a/libc/arch-arm64/syscalls/klogctl.S
+++ b/libc/arch-arm64/syscalls/klogctl.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(klogctl)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_syslog
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/lgetxattr.S b/libc/arch-arm64/syscalls/lgetxattr.S
index 2799285..e1a760c 100644
--- a/libc/arch-arm64/syscalls/lgetxattr.S
+++ b/libc/arch-arm64/syscalls/lgetxattr.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(lgetxattr)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_lgetxattr
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/linkat.S b/libc/arch-arm64/syscalls/linkat.S
index e65aa3f..c3e2cd8 100644
--- a/libc/arch-arm64/syscalls/linkat.S
+++ b/libc/arch-arm64/syscalls/linkat.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(linkat)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_linkat
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/listen.S b/libc/arch-arm64/syscalls/listen.S
index 44ae288..9b7be28 100644
--- a/libc/arch-arm64/syscalls/listen.S
+++ b/libc/arch-arm64/syscalls/listen.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(listen)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_listen
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/listxattr.S b/libc/arch-arm64/syscalls/listxattr.S
index b31d22c..a5e55c7 100644
--- a/libc/arch-arm64/syscalls/listxattr.S
+++ b/libc/arch-arm64/syscalls/listxattr.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(listxattr)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_listxattr
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/llistxattr.S b/libc/arch-arm64/syscalls/llistxattr.S
index fdcafde..447e208 100644
--- a/libc/arch-arm64/syscalls/llistxattr.S
+++ b/libc/arch-arm64/syscalls/llistxattr.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(llistxattr)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_llistxattr
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/lremovexattr.S b/libc/arch-arm64/syscalls/lremovexattr.S
index 741fa86..1f620db 100644
--- a/libc/arch-arm64/syscalls/lremovexattr.S
+++ b/libc/arch-arm64/syscalls/lremovexattr.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(lremovexattr)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_lremovexattr
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/lseek.S b/libc/arch-arm64/syscalls/lseek.S
index 3d16e75..1b858b2 100644
--- a/libc/arch-arm64/syscalls/lseek.S
+++ b/libc/arch-arm64/syscalls/lseek.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(lseek)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_lseek
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/lsetxattr.S b/libc/arch-arm64/syscalls/lsetxattr.S
index a7fe1df..8315bba 100644
--- a/libc/arch-arm64/syscalls/lsetxattr.S
+++ b/libc/arch-arm64/syscalls/lsetxattr.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(lsetxattr)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_lsetxattr
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/madvise.S b/libc/arch-arm64/syscalls/madvise.S
index 8eed274..17282c0 100644
--- a/libc/arch-arm64/syscalls/madvise.S
+++ b/libc/arch-arm64/syscalls/madvise.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(madvise)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_madvise
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/mincore.S b/libc/arch-arm64/syscalls/mincore.S
index 21dbe14..abdcf6c 100644
--- a/libc/arch-arm64/syscalls/mincore.S
+++ b/libc/arch-arm64/syscalls/mincore.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(mincore)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_mincore
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/mkdirat.S b/libc/arch-arm64/syscalls/mkdirat.S
index efd9786..d6bafca 100644
--- a/libc/arch-arm64/syscalls/mkdirat.S
+++ b/libc/arch-arm64/syscalls/mkdirat.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(mkdirat)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_mkdirat
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/mknodat.S b/libc/arch-arm64/syscalls/mknodat.S
index 1bf42d0..598e789 100644
--- a/libc/arch-arm64/syscalls/mknodat.S
+++ b/libc/arch-arm64/syscalls/mknodat.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(mknodat)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_mknodat
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/mlock.S b/libc/arch-arm64/syscalls/mlock.S
index e09e7fc..631ce02 100644
--- a/libc/arch-arm64/syscalls/mlock.S
+++ b/libc/arch-arm64/syscalls/mlock.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(mlock)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_mlock
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/mlockall.S b/libc/arch-arm64/syscalls/mlockall.S
index bfb2b60..42dac9e 100644
--- a/libc/arch-arm64/syscalls/mlockall.S
+++ b/libc/arch-arm64/syscalls/mlockall.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(mlockall)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_mlockall
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/mmap.S b/libc/arch-arm64/syscalls/mmap.S
index 437698a..da18e10 100644
--- a/libc/arch-arm64/syscalls/mmap.S
+++ b/libc/arch-arm64/syscalls/mmap.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(mmap)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_mmap
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/mount.S b/libc/arch-arm64/syscalls/mount.S
index 34170d8..c43a71f 100644
--- a/libc/arch-arm64/syscalls/mount.S
+++ b/libc/arch-arm64/syscalls/mount.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(mount)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_mount
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/mprotect.S b/libc/arch-arm64/syscalls/mprotect.S
index cdb4bc8..a7d26dd 100644
--- a/libc/arch-arm64/syscalls/mprotect.S
+++ b/libc/arch-arm64/syscalls/mprotect.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(mprotect)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_mprotect
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/mremap.S b/libc/arch-arm64/syscalls/mremap.S
index 605b39d..337bbae 100644
--- a/libc/arch-arm64/syscalls/mremap.S
+++ b/libc/arch-arm64/syscalls/mremap.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(mremap)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_mremap
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/msync.S b/libc/arch-arm64/syscalls/msync.S
index e511e86..c54797e 100644
--- a/libc/arch-arm64/syscalls/msync.S
+++ b/libc/arch-arm64/syscalls/msync.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(msync)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_msync
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/munlock.S b/libc/arch-arm64/syscalls/munlock.S
index f837c9c..b1ec016 100644
--- a/libc/arch-arm64/syscalls/munlock.S
+++ b/libc/arch-arm64/syscalls/munlock.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(munlock)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_munlock
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/munlockall.S b/libc/arch-arm64/syscalls/munlockall.S
index 93e9121..f9162a8 100644
--- a/libc/arch-arm64/syscalls/munlockall.S
+++ b/libc/arch-arm64/syscalls/munlockall.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(munlockall)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_munlockall
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/munmap.S b/libc/arch-arm64/syscalls/munmap.S
index f2b22bd..6bd5afe 100644
--- a/libc/arch-arm64/syscalls/munmap.S
+++ b/libc/arch-arm64/syscalls/munmap.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(munmap)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_munmap
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/nanosleep.S b/libc/arch-arm64/syscalls/nanosleep.S
index e33311a..c84accc 100644
--- a/libc/arch-arm64/syscalls/nanosleep.S
+++ b/libc/arch-arm64/syscalls/nanosleep.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(nanosleep)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_nanosleep
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/personality.S b/libc/arch-arm64/syscalls/personality.S
index c37cae2..02bcf9b 100644
--- a/libc/arch-arm64/syscalls/personality.S
+++ b/libc/arch-arm64/syscalls/personality.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(personality)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_personality
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/pipe2.S b/libc/arch-arm64/syscalls/pipe2.S
index ab2e259..f4da37d 100644
--- a/libc/arch-arm64/syscalls/pipe2.S
+++ b/libc/arch-arm64/syscalls/pipe2.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(pipe2)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_pipe2
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/prctl.S b/libc/arch-arm64/syscalls/prctl.S
index dd46fd4..2e6dca7 100644
--- a/libc/arch-arm64/syscalls/prctl.S
+++ b/libc/arch-arm64/syscalls/prctl.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(prctl)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_prctl
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/pread64.S b/libc/arch-arm64/syscalls/pread64.S
index ddc6c12..2aba596 100644
--- a/libc/arch-arm64/syscalls/pread64.S
+++ b/libc/arch-arm64/syscalls/pread64.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(pread64)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_pread64
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/prlimit64.S b/libc/arch-arm64/syscalls/prlimit64.S
index 39d31b0..a2173d9 100644
--- a/libc/arch-arm64/syscalls/prlimit64.S
+++ b/libc/arch-arm64/syscalls/prlimit64.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(prlimit64)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_prlimit64
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/pwrite64.S b/libc/arch-arm64/syscalls/pwrite64.S
index 81e2cf7..5674a7c 100644
--- a/libc/arch-arm64/syscalls/pwrite64.S
+++ b/libc/arch-arm64/syscalls/pwrite64.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(pwrite64)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_pwrite64
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/read.S b/libc/arch-arm64/syscalls/read.S
index c529576..906fb98 100644
--- a/libc/arch-arm64/syscalls/read.S
+++ b/libc/arch-arm64/syscalls/read.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(read)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_read
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/readahead.S b/libc/arch-arm64/syscalls/readahead.S
index e8394cc..2994b83 100644
--- a/libc/arch-arm64/syscalls/readahead.S
+++ b/libc/arch-arm64/syscalls/readahead.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(readahead)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_readahead
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/readlinkat.S b/libc/arch-arm64/syscalls/readlinkat.S
index d7cadcc..1782c94 100644
--- a/libc/arch-arm64/syscalls/readlinkat.S
+++ b/libc/arch-arm64/syscalls/readlinkat.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(readlinkat)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_readlinkat
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/readv.S b/libc/arch-arm64/syscalls/readv.S
index 98d0742..bc988d4 100644
--- a/libc/arch-arm64/syscalls/readv.S
+++ b/libc/arch-arm64/syscalls/readv.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(readv)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_readv
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/recvfrom.S b/libc/arch-arm64/syscalls/recvfrom.S
index 63181f1..16f97d5 100644
--- a/libc/arch-arm64/syscalls/recvfrom.S
+++ b/libc/arch-arm64/syscalls/recvfrom.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(recvfrom)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_recvfrom
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/recvmmsg.S b/libc/arch-arm64/syscalls/recvmmsg.S
index cb1fbfc..bd1495a 100644
--- a/libc/arch-arm64/syscalls/recvmmsg.S
+++ b/libc/arch-arm64/syscalls/recvmmsg.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(recvmmsg)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_recvmmsg
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/recvmsg.S b/libc/arch-arm64/syscalls/recvmsg.S
index 8a91a5f..c9b78c4 100644
--- a/libc/arch-arm64/syscalls/recvmsg.S
+++ b/libc/arch-arm64/syscalls/recvmsg.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(recvmsg)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_recvmsg
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/removexattr.S b/libc/arch-arm64/syscalls/removexattr.S
index 6fb557a..c12cc84 100644
--- a/libc/arch-arm64/syscalls/removexattr.S
+++ b/libc/arch-arm64/syscalls/removexattr.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(removexattr)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_removexattr
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/renameat.S b/libc/arch-arm64/syscalls/renameat.S
index e4efeb8..cf79472 100644
--- a/libc/arch-arm64/syscalls/renameat.S
+++ b/libc/arch-arm64/syscalls/renameat.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(renameat)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_renameat
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/sched_get_priority_max.S b/libc/arch-arm64/syscalls/sched_get_priority_max.S
index 74f919b..672d0ea 100644
--- a/libc/arch-arm64/syscalls/sched_get_priority_max.S
+++ b/libc/arch-arm64/syscalls/sched_get_priority_max.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(sched_get_priority_max)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_sched_get_priority_max
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/sched_get_priority_min.S b/libc/arch-arm64/syscalls/sched_get_priority_min.S
index d043b3b..f5cf1f3 100644
--- a/libc/arch-arm64/syscalls/sched_get_priority_min.S
+++ b/libc/arch-arm64/syscalls/sched_get_priority_min.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(sched_get_priority_min)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_sched_get_priority_min
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/sched_getparam.S b/libc/arch-arm64/syscalls/sched_getparam.S
index fedcec8..7ffe8fb 100644
--- a/libc/arch-arm64/syscalls/sched_getparam.S
+++ b/libc/arch-arm64/syscalls/sched_getparam.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(sched_getparam)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_sched_getparam
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/sched_getscheduler.S b/libc/arch-arm64/syscalls/sched_getscheduler.S
index 1225601..b69b8c0 100644
--- a/libc/arch-arm64/syscalls/sched_getscheduler.S
+++ b/libc/arch-arm64/syscalls/sched_getscheduler.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(sched_getscheduler)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_sched_getscheduler
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/sched_rr_get_interval.S b/libc/arch-arm64/syscalls/sched_rr_get_interval.S
index 796edda..0be14ba 100644
--- a/libc/arch-arm64/syscalls/sched_rr_get_interval.S
+++ b/libc/arch-arm64/syscalls/sched_rr_get_interval.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(sched_rr_get_interval)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_sched_rr_get_interval
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/sched_setaffinity.S b/libc/arch-arm64/syscalls/sched_setaffinity.S
index 2a7022d..f5cbc77 100644
--- a/libc/arch-arm64/syscalls/sched_setaffinity.S
+++ b/libc/arch-arm64/syscalls/sched_setaffinity.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(sched_setaffinity)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_sched_setaffinity
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/sched_setparam.S b/libc/arch-arm64/syscalls/sched_setparam.S
index dd82a10..cff64f5 100644
--- a/libc/arch-arm64/syscalls/sched_setparam.S
+++ b/libc/arch-arm64/syscalls/sched_setparam.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(sched_setparam)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_sched_setparam
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/sched_setscheduler.S b/libc/arch-arm64/syscalls/sched_setscheduler.S
index 25e1e36..31600a0 100644
--- a/libc/arch-arm64/syscalls/sched_setscheduler.S
+++ b/libc/arch-arm64/syscalls/sched_setscheduler.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(sched_setscheduler)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_sched_setscheduler
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/sched_yield.S b/libc/arch-arm64/syscalls/sched_yield.S
index cbee020..21ad601 100644
--- a/libc/arch-arm64/syscalls/sched_yield.S
+++ b/libc/arch-arm64/syscalls/sched_yield.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(sched_yield)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_sched_yield
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/sendfile.S b/libc/arch-arm64/syscalls/sendfile.S
index 1705d3c..db90caa 100644
--- a/libc/arch-arm64/syscalls/sendfile.S
+++ b/libc/arch-arm64/syscalls/sendfile.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(sendfile)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_sendfile
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/sendmmsg.S b/libc/arch-arm64/syscalls/sendmmsg.S
index 2277110..e85798a 100644
--- a/libc/arch-arm64/syscalls/sendmmsg.S
+++ b/libc/arch-arm64/syscalls/sendmmsg.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(sendmmsg)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_sendmmsg
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/sendmsg.S b/libc/arch-arm64/syscalls/sendmsg.S
index 96fcb9a..25eff84 100644
--- a/libc/arch-arm64/syscalls/sendmsg.S
+++ b/libc/arch-arm64/syscalls/sendmsg.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(sendmsg)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_sendmsg
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/sendto.S b/libc/arch-arm64/syscalls/sendto.S
index 67589ba..39e4e4e 100644
--- a/libc/arch-arm64/syscalls/sendto.S
+++ b/libc/arch-arm64/syscalls/sendto.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(sendto)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_sendto
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/setgid.S b/libc/arch-arm64/syscalls/setgid.S
index fbaa785..a9789f7 100644
--- a/libc/arch-arm64/syscalls/setgid.S
+++ b/libc/arch-arm64/syscalls/setgid.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(setgid)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_setgid
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/setgroups.S b/libc/arch-arm64/syscalls/setgroups.S
index 48035b6..ce9bf01 100644
--- a/libc/arch-arm64/syscalls/setgroups.S
+++ b/libc/arch-arm64/syscalls/setgroups.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(setgroups)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_setgroups
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/setitimer.S b/libc/arch-arm64/syscalls/setitimer.S
index 42af94b..d8e3d7e 100644
--- a/libc/arch-arm64/syscalls/setitimer.S
+++ b/libc/arch-arm64/syscalls/setitimer.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(setitimer)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_setitimer
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/setns.S b/libc/arch-arm64/syscalls/setns.S
index f695597..615f888 100644
--- a/libc/arch-arm64/syscalls/setns.S
+++ b/libc/arch-arm64/syscalls/setns.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(setns)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_setns
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/setpgid.S b/libc/arch-arm64/syscalls/setpgid.S
index 5653256..6015264 100644
--- a/libc/arch-arm64/syscalls/setpgid.S
+++ b/libc/arch-arm64/syscalls/setpgid.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(setpgid)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_setpgid
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/setpriority.S b/libc/arch-arm64/syscalls/setpriority.S
index 121bcaa..d2f517e 100644
--- a/libc/arch-arm64/syscalls/setpriority.S
+++ b/libc/arch-arm64/syscalls/setpriority.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(setpriority)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_setpriority
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/setregid.S b/libc/arch-arm64/syscalls/setregid.S
index 6389551..7b333bf 100644
--- a/libc/arch-arm64/syscalls/setregid.S
+++ b/libc/arch-arm64/syscalls/setregid.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(setregid)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_setregid
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/setresgid.S b/libc/arch-arm64/syscalls/setresgid.S
index bf78249..39504bd 100644
--- a/libc/arch-arm64/syscalls/setresgid.S
+++ b/libc/arch-arm64/syscalls/setresgid.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(setresgid)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_setresgid
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/setresuid.S b/libc/arch-arm64/syscalls/setresuid.S
index 83200da..5acbffd 100644
--- a/libc/arch-arm64/syscalls/setresuid.S
+++ b/libc/arch-arm64/syscalls/setresuid.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(setresuid)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_setresuid
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/setreuid.S b/libc/arch-arm64/syscalls/setreuid.S
index 2253eec..63630d6 100644
--- a/libc/arch-arm64/syscalls/setreuid.S
+++ b/libc/arch-arm64/syscalls/setreuid.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(setreuid)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_setreuid
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/setrlimit.S b/libc/arch-arm64/syscalls/setrlimit.S
index 034ae36..f9f56a6 100644
--- a/libc/arch-arm64/syscalls/setrlimit.S
+++ b/libc/arch-arm64/syscalls/setrlimit.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(setrlimit)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_setrlimit
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/setsid.S b/libc/arch-arm64/syscalls/setsid.S
index 64123df..04c28e3 100644
--- a/libc/arch-arm64/syscalls/setsid.S
+++ b/libc/arch-arm64/syscalls/setsid.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(setsid)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_setsid
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/setsockopt.S b/libc/arch-arm64/syscalls/setsockopt.S
index fe8da22..0ebc6d0 100644
--- a/libc/arch-arm64/syscalls/setsockopt.S
+++ b/libc/arch-arm64/syscalls/setsockopt.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(setsockopt)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_setsockopt
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/settimeofday.S b/libc/arch-arm64/syscalls/settimeofday.S
index 50debf9..474e40d 100644
--- a/libc/arch-arm64/syscalls/settimeofday.S
+++ b/libc/arch-arm64/syscalls/settimeofday.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(settimeofday)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_settimeofday
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/setuid.S b/libc/arch-arm64/syscalls/setuid.S
index 0a9adbe..fe52921 100644
--- a/libc/arch-arm64/syscalls/setuid.S
+++ b/libc/arch-arm64/syscalls/setuid.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(setuid)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_setuid
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/setxattr.S b/libc/arch-arm64/syscalls/setxattr.S
index ebfd607..8d0b415 100644
--- a/libc/arch-arm64/syscalls/setxattr.S
+++ b/libc/arch-arm64/syscalls/setxattr.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(setxattr)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_setxattr
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/shutdown.S b/libc/arch-arm64/syscalls/shutdown.S
index 6e878d6..e35cdea 100644
--- a/libc/arch-arm64/syscalls/shutdown.S
+++ b/libc/arch-arm64/syscalls/shutdown.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(shutdown)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_shutdown
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/sigaltstack.S b/libc/arch-arm64/syscalls/sigaltstack.S
index 46794d4..6a38203 100644
--- a/libc/arch-arm64/syscalls/sigaltstack.S
+++ b/libc/arch-arm64/syscalls/sigaltstack.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(sigaltstack)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_sigaltstack
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/socketpair.S b/libc/arch-arm64/syscalls/socketpair.S
index c42ff24..dcd7223 100644
--- a/libc/arch-arm64/syscalls/socketpair.S
+++ b/libc/arch-arm64/syscalls/socketpair.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(socketpair)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_socketpair
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/statfs64.S b/libc/arch-arm64/syscalls/statfs64.S
index 66662ee..55633c1 100644
--- a/libc/arch-arm64/syscalls/statfs64.S
+++ b/libc/arch-arm64/syscalls/statfs64.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(statfs64)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_statfs
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/swapoff.S b/libc/arch-arm64/syscalls/swapoff.S
index 1d465b0..dcef4af 100644
--- a/libc/arch-arm64/syscalls/swapoff.S
+++ b/libc/arch-arm64/syscalls/swapoff.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(swapoff)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_swapoff
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/swapon.S b/libc/arch-arm64/syscalls/swapon.S
index 7e5f850..aef7627 100644
--- a/libc/arch-arm64/syscalls/swapon.S
+++ b/libc/arch-arm64/syscalls/swapon.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(swapon)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_swapon
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/symlinkat.S b/libc/arch-arm64/syscalls/symlinkat.S
index 0081cf2..9830865 100644
--- a/libc/arch-arm64/syscalls/symlinkat.S
+++ b/libc/arch-arm64/syscalls/symlinkat.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(symlinkat)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_symlinkat
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/sync.S b/libc/arch-arm64/syscalls/sync.S
index 67bc554..3ef0460 100644
--- a/libc/arch-arm64/syscalls/sync.S
+++ b/libc/arch-arm64/syscalls/sync.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(sync)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_sync
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/sysinfo.S b/libc/arch-arm64/syscalls/sysinfo.S
index 0797a39..7dbe152 100644
--- a/libc/arch-arm64/syscalls/sysinfo.S
+++ b/libc/arch-arm64/syscalls/sysinfo.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(sysinfo)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_sysinfo
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/tgkill.S b/libc/arch-arm64/syscalls/tgkill.S
index 9366c70..477c477 100644
--- a/libc/arch-arm64/syscalls/tgkill.S
+++ b/libc/arch-arm64/syscalls/tgkill.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(tgkill)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_tgkill
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/timerfd_create.S b/libc/arch-arm64/syscalls/timerfd_create.S
index 1e9d2e3..83b5910 100644
--- a/libc/arch-arm64/syscalls/timerfd_create.S
+++ b/libc/arch-arm64/syscalls/timerfd_create.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(timerfd_create)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_timerfd_create
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/timerfd_gettime.S b/libc/arch-arm64/syscalls/timerfd_gettime.S
index 56d7f96..253cb79 100644
--- a/libc/arch-arm64/syscalls/timerfd_gettime.S
+++ b/libc/arch-arm64/syscalls/timerfd_gettime.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(timerfd_gettime)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_timerfd_gettime
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/timerfd_settime.S b/libc/arch-arm64/syscalls/timerfd_settime.S
index 29af0f1..8872481 100644
--- a/libc/arch-arm64/syscalls/timerfd_settime.S
+++ b/libc/arch-arm64/syscalls/timerfd_settime.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(timerfd_settime)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_timerfd_settime
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/times.S b/libc/arch-arm64/syscalls/times.S
index 9487186..33c7d55 100644
--- a/libc/arch-arm64/syscalls/times.S
+++ b/libc/arch-arm64/syscalls/times.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(times)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_times
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/truncate.S b/libc/arch-arm64/syscalls/truncate.S
index 3bbe356..f15253b 100644
--- a/libc/arch-arm64/syscalls/truncate.S
+++ b/libc/arch-arm64/syscalls/truncate.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(truncate)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_truncate
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/umask.S b/libc/arch-arm64/syscalls/umask.S
index ca72092..8b907b4 100644
--- a/libc/arch-arm64/syscalls/umask.S
+++ b/libc/arch-arm64/syscalls/umask.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(umask)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_umask
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/umount2.S b/libc/arch-arm64/syscalls/umount2.S
index a959625..5646dba 100644
--- a/libc/arch-arm64/syscalls/umount2.S
+++ b/libc/arch-arm64/syscalls/umount2.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(umount2)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_umount2
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/uname.S b/libc/arch-arm64/syscalls/uname.S
index 2f87563..09ec096 100644
--- a/libc/arch-arm64/syscalls/uname.S
+++ b/libc/arch-arm64/syscalls/uname.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(uname)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_uname
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/unlinkat.S b/libc/arch-arm64/syscalls/unlinkat.S
index 0025726..992f675 100644
--- a/libc/arch-arm64/syscalls/unlinkat.S
+++ b/libc/arch-arm64/syscalls/unlinkat.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(unlinkat)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_unlinkat
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/unshare.S b/libc/arch-arm64/syscalls/unshare.S
index 55462b4..1062dcd 100644
--- a/libc/arch-arm64/syscalls/unshare.S
+++ b/libc/arch-arm64/syscalls/unshare.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(unshare)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_unshare
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/utimensat.S b/libc/arch-arm64/syscalls/utimensat.S
index aa5cfbf..8a25ed6 100644
--- a/libc/arch-arm64/syscalls/utimensat.S
+++ b/libc/arch-arm64/syscalls/utimensat.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(utimensat)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_utimensat
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/wait4.S b/libc/arch-arm64/syscalls/wait4.S
index 93183e5..a0d5d62 100644
--- a/libc/arch-arm64/syscalls/wait4.S
+++ b/libc/arch-arm64/syscalls/wait4.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(wait4)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_wait4
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/write.S b/libc/arch-arm64/syscalls/write.S
index b7288d1..d64552e 100644
--- a/libc/arch-arm64/syscalls/write.S
+++ b/libc/arch-arm64/syscalls/write.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(write)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_write
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/arch-arm64/syscalls/writev.S b/libc/arch-arm64/syscalls/writev.S
index 13af454..45d5c8d 100644
--- a/libc/arch-arm64/syscalls/writev.S
+++ b/libc/arch-arm64/syscalls/writev.S
@@ -3,20 +3,9 @@
 #include <private/bionic_asm.h>
 
 ENTRY(writev)
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, __NR_writev
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libc/bionic/ndk_cruft.cpp b/libc/bionic/ndk_cruft.cpp
index b73c47e..15a3206 100644
--- a/libc/bionic/ndk_cruft.cpp
+++ b/libc/bionic/ndk_cruft.cpp
@@ -245,4 +245,9 @@
   return __getdents64(fd, dirp, count);
 }
 
+// This is a BSDism that we never implemented correctly. Used by Firefox.
+extern "C" int issetugid() {
+  return 0;
+}
+
 #endif
diff --git a/libc/tools/gensyscalls.py b/libc/tools/gensyscalls.py
index a34b763..96583d6 100755
--- a/libc/tools/gensyscalls.py
+++ b/libc/tools/gensyscalls.py
@@ -95,20 +95,9 @@
 #
 
 arm64_call = syscall_stub_header + """\
-    stp     x29, x30, [sp, #-16]!
-    .cfi_def_cfa_offset 16
-    .cfi_rel_offset x29, 0
-    .cfi_rel_offset x30, 8
-    mov     x29,  sp
-
     mov     x8, %(__NR_name)s
     svc     #0
 
-    ldp     x29, x30, [sp], #16
-    .cfi_def_cfa_offset 0
-    .cfi_restore x29
-    .cfi_restore x30
-
     cmn     x0, #(MAX_ERRNO + 1)
     cneg    x0, x0, hi
     b.hi    __set_errno
diff --git a/libm/amd64/fenv.c b/libm/amd64/fenv.c
index b058de2..4b24ff9 100755
--- a/libm/amd64/fenv.c
+++ b/libm/amd64/fenv.c
@@ -30,6 +30,15 @@
 #include <fenv.h>
 #include <machine/fpu.h>
 
+#define SSE_MASK_SHIFT 7
+
+/*
+ * The following symbol is simply the bitwise-inclusive OR of all floating-point
+ * rounding direction constants defined above.
+ */
+#define X87_ROUND_MASK  (FE_TONEAREST | FE_DOWNWARD | FE_UPWARD | FE_TOWARDZERO)
+#define SSE_ROUND_SHIFT 3
+
 /*
  * The following constant represents the default floating-point environment
  * (that is, the one installed at program startup) and has type pointer to
@@ -203,7 +212,7 @@
    */
   __asm__ __volatile__ ("fnstcw %0" : "=m" (control));
 
-  return (control & _X87_ROUND_MASK);
+  return (control & X87_ROUND_MASK);
 }
 
 /*
@@ -218,14 +227,14 @@
   unsigned int mxcsr;
 
   /* Check whether requested rounding direction is supported */
-  if (round & ~_X87_ROUND_MASK)
+  if (round & ~X87_ROUND_MASK)
     return (-1);
 
   /* Store the current x87 control word register */
   __asm__ __volatile__ ("fnstcw %0" : "=m" (control));
 
   /* Set the rounding direction */
-  control &= ~_X87_ROUND_MASK;
+  control &= ~X87_ROUND_MASK;
   control |= round;
 
   /* Load the x87 control word register */
@@ -233,8 +242,8 @@
 
   /* Same for the SSE environment */
   __asm__ __volatile__ ("stmxcsr %0" : "=m" (mxcsr));
-  mxcsr &= ~(_X87_ROUND_MASK << _SSE_ROUND_SHIFT);
-  mxcsr |= round << _SSE_ROUND_SHIFT;
+  mxcsr &= ~(X87_ROUND_MASK << SSE_ROUND_SHIFT);
+  mxcsr |= round << SSE_ROUND_SHIFT;
   __asm__ __volatile__ ("ldmxcsr %0" : : "m" (mxcsr));
 
   return (0);
@@ -291,7 +300,7 @@
   mxcsr &= ~FE_ALL_EXCEPT;
 
   /* Mask all exceptions */
-  mxcsr |= FE_ALL_EXCEPT << _SSE_MASK_SHIFT;
+  mxcsr |= FE_ALL_EXCEPT << SSE_MASK_SHIFT;
 
   /* Store the MXCSR register */
   __asm__ __volatile__ ("ldmxcsr %0" : : "m" (mxcsr));
@@ -362,11 +371,11 @@
   __asm__ __volatile__ ("fnstcw %0" : "=m" (control));
   __asm__ __volatile__ ("stmxcsr %0" : "=m" (mxcsr));
 
-  omask = ~(control | (mxcsr >> _SSE_MASK_SHIFT)) & FE_ALL_EXCEPT;
+  omask = ~(control | (mxcsr >> SSE_MASK_SHIFT)) & FE_ALL_EXCEPT;
   control &= ~mask;
   __asm__ __volatile__ ("fldcw %0" : : "m" (control));
 
-  mxcsr &= ~(mask << _SSE_MASK_SHIFT);
+  mxcsr &= ~(mask << SSE_MASK_SHIFT);
   __asm__ __volatile__ ("ldmxcsr %0" : : "m" (mxcsr));
 
   return (omask);
@@ -383,11 +392,11 @@
   __asm__ __volatile__ ("fnstcw %0" : "=m" (control));
   __asm__ __volatile__ ("stmxcsr %0" : "=m" (mxcsr));
 
-  omask = ~(control | (mxcsr >> _SSE_MASK_SHIFT)) & FE_ALL_EXCEPT;
+  omask = ~(control | (mxcsr >> SSE_MASK_SHIFT)) & FE_ALL_EXCEPT;
   control |= mask;
   __asm__ __volatile__ ("fldcw %0" : : "m" (control));
 
-  mxcsr |= mask << _SSE_MASK_SHIFT;
+  mxcsr |= mask << SSE_MASK_SHIFT;
   __asm__ __volatile__ ("ldmxcsr %0" : : "m" (mxcsr));
 
   return (omask);
diff --git a/libm/arm/fenv.c b/libm/arm/fenv.c
index a0108e8..2124730 100644
--- a/libm/arm/fenv.c
+++ b/libm/arm/fenv.c
@@ -28,10 +28,11 @@
 
 #include <fenv.h>
 
-/*
- * Hopefully the system ID byte is immutable, so it's valid to use
- * this as a default environment.
- */
+#define FPSCR_ENABLE_SHIFT 8
+#define FPSCR_ENABLE_MASK  (FE_ALL_EXCEPT << FPSCR_ENABLE_SHIFT)
+
+#define FPSCR_RMODE_SHIFT 22
+
 const fenv_t __fe_dfl_env = 0;
 
 int fegetenv(fenv_t* __envp) {
@@ -86,14 +87,14 @@
 int fegetround(void) {
   fenv_t _fpscr;
   fegetenv(&_fpscr);
-  return ((_fpscr >> _FPSCR_RMODE_SHIFT) & 0x3);
+  return ((_fpscr >> FPSCR_RMODE_SHIFT) & 0x3);
 }
 
 int fesetround(int __round) {
   fenv_t _fpscr;
   fegetenv(&_fpscr);
-  _fpscr &= ~(0x3 << _FPSCR_RMODE_SHIFT);
-  _fpscr |= (__round << _FPSCR_RMODE_SHIFT);
+  _fpscr &= ~(0x3 << FPSCR_RMODE_SHIFT);
+  _fpscr |= (__round << FPSCR_RMODE_SHIFT);
   fesetenv(&_fpscr);
   return 0;
 }
@@ -102,7 +103,7 @@
   fenv_t __env;
   fegetenv(&__env);
   *__envp = __env;
-  __env &= ~(FE_ALL_EXCEPT | _FPSCR_ENABLE_MASK);
+  __env &= ~(FE_ALL_EXCEPT | FPSCR_ENABLE_MASK);
   fesetenv(&__env);
   return 0;
 }
@@ -118,21 +119,21 @@
 int feenableexcept(int __mask) {
   fenv_t __old_fpscr, __new_fpscr;
   fegetenv(&__old_fpscr);
-  __new_fpscr = __old_fpscr | (__mask & FE_ALL_EXCEPT) << _FPSCR_ENABLE_SHIFT;
+  __new_fpscr = __old_fpscr | (__mask & FE_ALL_EXCEPT) << FPSCR_ENABLE_SHIFT;
   fesetenv(&__new_fpscr);
-  return ((__old_fpscr >> _FPSCR_ENABLE_SHIFT) & FE_ALL_EXCEPT);
+  return ((__old_fpscr >> FPSCR_ENABLE_SHIFT) & FE_ALL_EXCEPT);
 }
 
 int fedisableexcept(int __mask) {
   fenv_t __old_fpscr, __new_fpscr;
   fegetenv(&__old_fpscr);
-  __new_fpscr = __old_fpscr & ~((__mask & FE_ALL_EXCEPT) << _FPSCR_ENABLE_SHIFT);
+  __new_fpscr = __old_fpscr & ~((__mask & FE_ALL_EXCEPT) << FPSCR_ENABLE_SHIFT);
   fesetenv(&__new_fpscr);
-  return ((__old_fpscr >> _FPSCR_ENABLE_SHIFT) & FE_ALL_EXCEPT);
+  return ((__old_fpscr >> FPSCR_ENABLE_SHIFT) & FE_ALL_EXCEPT);
 }
 
 int fegetexcept(void) {
   fenv_t __fpscr;
   fegetenv(&__fpscr);
-  return ((__fpscr & _FPSCR_ENABLE_MASK) >> _FPSCR_ENABLE_SHIFT);
+  return ((__fpscr & FPSCR_ENABLE_MASK) >> FPSCR_ENABLE_SHIFT);
 }
diff --git a/libm/arm64/fenv.c b/libm/arm64/fenv.c
index 9db21ef..ce560a7 100644
--- a/libm/arm64/fenv.c
+++ b/libm/arm64/fenv.c
@@ -28,114 +28,168 @@
 
 #include <fenv.h>
 
-/*
- * Hopefully the system ID byte is immutable, so it's valid to use
- * this as a default environment.
- */
-const fenv_t __fe_dfl_env = 0;
+#define FPCR_EXCEPT_SHIFT 8
+#define FPCR_EXCEPT_MASK  (FE_ALL_EXCEPT << FPCR_EXCEPT_SHIFT)
 
-int fegetenv(fenv_t* __envp) {
-  fenv_t _fpcr, _fpsr;
-  __asm__ __volatile__("mrs %0,fpcr" : "=r" (_fpcr));
-  __asm__ __volatile__("mrs %0,fpsr" : "=r" (_fpsr));
-  *__envp = (_fpcr | _fpsr);
+#define FPCR_RMODE_SHIFT 22
+
+const fenv_t __fe_dfl_env = { 0 /* control */, 0 /* status */};
+
+typedef __uint32_t fpu_control_t;   // FPCR, Floating-point Control Register.
+typedef __uint32_t fpu_status_t;    // FPSR, Floating-point Status Register.
+
+#define __get_fpcr(__fpcr) __asm__ __volatile__("mrs %0,fpcr" : "=r" (__fpcr))
+#define __get_fpsr(__fpsr) __asm__ __volatile__("mrs %0,fpsr" : "=r" (__fpsr))
+#define __set_fpcr(__fpcr) __asm__ __volatile__("msr fpcr,%0" : :"ri" (__fpcr))
+#define __set_fpsr(__fpsr) __asm__ __volatile__("msr fpsr,%0" : :"ri" (__fpsr))
+
+int fegetenv(fenv_t* envp) {
+  __get_fpcr(envp->__control);
+  __get_fpsr(envp->__status);
   return 0;
 }
 
-int fesetenv(const fenv_t* __envp) {
-  fenv_t _fpcr = (*__envp & FPCR_MASK);
-  fenv_t _fpsr = (*__envp & FPSR_MASK);
-  __asm__ __volatile__("msr fpcr,%0" : :"ri" (_fpcr));
-  __asm__ __volatile__("msr fpsr,%0" : :"ri" (_fpsr));
+int fesetenv(const fenv_t* envp) {
+  fpu_control_t fpcr;
+
+  __get_fpcr(fpcr);
+  if (envp->__control != fpcr) {
+    __set_fpcr(envp->__control);
+  }
+  __set_fpsr(envp->__status);
   return 0;
 }
 
-int feclearexcept(int __excepts) {
-  fexcept_t __fpscr;
-  fegetenv(&__fpscr);
-  __fpscr &= ~__excepts;
-  fesetenv(&__fpscr);
+int feclearexcept(int excepts) {
+  fpu_status_t fpsr;
+
+  excepts &= FE_ALL_EXCEPT;
+  __get_fpsr(fpsr);
+  fpsr &= ~excepts;
+  __set_fpsr(fpsr);
   return 0;
 }
 
-int fegetexceptflag(fexcept_t* __flagp, int __excepts) {
-  fexcept_t __fpscr;
-  fegetenv(&__fpscr);
-  *__flagp = __fpscr & __excepts;
+int fegetexceptflag(fexcept_t* flagp, int excepts) {
+  fpu_status_t fpsr;
+
+  excepts &= FE_ALL_EXCEPT;
+  __get_fpsr(fpsr);
+  *flagp = fpsr & excepts;
   return 0;
 }
 
-int fesetexceptflag(const fexcept_t* __flagp, int __excepts) {
-  fexcept_t __fpscr;
-  fegetenv(&__fpscr);
-  __fpscr &= ~__excepts;
-  __fpscr |= *__flagp & __excepts;
-  fesetenv(&__fpscr);
+int fesetexceptflag(const fexcept_t* flagp, int excepts) {
+  fpu_status_t fpsr;
+
+  excepts &= FE_ALL_EXCEPT;
+  __get_fpsr(fpsr);
+  fpsr &= ~excepts;
+  fpsr |= *flagp & excepts;
+  __set_fpsr(fpsr);
   return 0;
 }
 
-int feraiseexcept(int __excepts) {
-  fexcept_t __ex = __excepts;
-  fesetexceptflag(&__ex, __excepts);
+int feraiseexcept(int excepts) {
+  fexcept_t ex = excepts;
+
+  fesetexceptflag(&ex, excepts);
   return 0;
 }
 
-int fetestexcept(int __excepts) {
-  fexcept_t __fpscr;
-  fegetenv(&__fpscr);
-  return (__fpscr & __excepts);
+int fetestexcept(int excepts) {
+  fpu_status_t fpsr;
+
+  excepts &= FE_ALL_EXCEPT;
+  __get_fpsr(fpsr);
+  return (fpsr & excepts);
 }
 
 int fegetround(void) {
-  fenv_t _fpscr;
-  fegetenv(&_fpscr);
-  return ((_fpscr >> _FPSCR_RMODE_SHIFT) & 0x3);
+  fpu_control_t fpcr;
+
+  __get_fpcr(fpcr);
+  return ((fpcr >> FPCR_RMODE_SHIFT) & FE_TOWARDZERO);
 }
 
-int fesetround(int __round) {
-  fenv_t _fpscr;
-  fegetenv(&_fpscr);
-  _fpscr &= ~(0x3 << _FPSCR_RMODE_SHIFT);
-  _fpscr |= (__round << _FPSCR_RMODE_SHIFT);
-  fesetenv(&_fpscr);
+int fesetround(int round) {
+  fpu_control_t fpcr, new_fpcr;
+
+  round &= FE_TOWARDZERO;
+  __get_fpcr(fpcr);
+  new_fpcr = fpcr & ~(FE_TOWARDZERO << FPCR_RMODE_SHIFT);
+  new_fpcr |= (round << FPCR_RMODE_SHIFT);
+  if (new_fpcr != fpcr) {
+    __set_fpcr(new_fpcr);
+  }
   return 0;
 }
 
-int feholdexcept(fenv_t* __envp) {
-  fenv_t __env;
-  fegetenv(&__env);
-  *__envp = __env;
-  __env &= ~(FE_ALL_EXCEPT | _FPSCR_ENABLE_MASK);
-  fesetenv(&__env);
+int feholdexcept(fenv_t* envp) {
+  fenv_t env;
+  fpu_status_t fpsr;
+  fpu_control_t fpcr, new_fpcr;
+
+  __get_fpsr(fpsr);
+  __get_fpcr(fpcr);
+  env.__status = fpsr;
+  env.__control = fpcr;
+  *envp = env;
+
+  // Set exceptions to untrapped.
+  new_fpcr = fpcr & ~(FE_ALL_EXCEPT << FPCR_EXCEPT_SHIFT);
+  if (new_fpcr != fpcr) {
+    __set_fpcr(new_fpcr);
+  }
+
+  // Clear all exceptions.
+  fpsr &= ~FE_ALL_EXCEPT;
+  __set_fpsr(fpsr);
   return 0;
 }
 
-int feupdateenv(const fenv_t* __envp) {
-  fexcept_t __fpscr;
-  fegetenv(&__fpscr);
-  fesetenv(__envp);
-  feraiseexcept(__fpscr & FE_ALL_EXCEPT);
+int feupdateenv(const fenv_t* envp) {
+  fpu_status_t fpsr;
+  fpu_control_t fpcr;
+
+  // Set FPU Control register.
+  __get_fpcr(fpcr);
+  if (envp->__control != fpcr) {
+    __set_fpcr(envp->__control);
+  }
+
+  // Set FPU Status register to status | currently raised exceptions.
+  __get_fpsr(fpsr);
+  fpsr = envp->__status | (fpsr & FE_ALL_EXCEPT);
+  __set_fpsr(fpsr);
   return 0;
 }
 
-int feenableexcept(int __mask) {
-  fenv_t __old_fpscr, __new_fpscr;
-  fegetenv(&__old_fpscr);
-  __new_fpscr = __old_fpscr | (__mask & FE_ALL_EXCEPT) << _FPSCR_ENABLE_SHIFT;
-  fesetenv(&__new_fpscr);
-  return ((__old_fpscr >> _FPSCR_ENABLE_SHIFT) & FE_ALL_EXCEPT);
+int feenableexcept(int mask) {
+  fpu_control_t old_fpcr, new_fpcr;
+
+  __get_fpcr(old_fpcr);
+  new_fpcr = old_fpcr | ((mask & FE_ALL_EXCEPT) << FPCR_EXCEPT_SHIFT);
+  if (new_fpcr != old_fpcr) {
+    __set_fpcr(new_fpcr);
+  }
+  return ((old_fpcr >> FPCR_EXCEPT_SHIFT) & FE_ALL_EXCEPT);
 }
 
-int fedisableexcept(int __mask) {
-  fenv_t __old_fpscr, __new_fpscr;
-  fegetenv(&__old_fpscr);
-  __new_fpscr = __old_fpscr & ~((__mask & FE_ALL_EXCEPT) << _FPSCR_ENABLE_SHIFT);
-  fesetenv(&__new_fpscr);
-  return ((__old_fpscr >> _FPSCR_ENABLE_SHIFT) & FE_ALL_EXCEPT);
+int fedisableexcept(int mask) {
+  fpu_control_t old_fpcr, new_fpcr;
+
+  __get_fpcr(old_fpcr);
+  new_fpcr = old_fpcr & ~((mask & FE_ALL_EXCEPT) << FPCR_EXCEPT_SHIFT);
+  if (new_fpcr != old_fpcr) {
+    __set_fpcr(new_fpcr);
+  }
+  return ((old_fpcr >> FPCR_EXCEPT_SHIFT) & FE_ALL_EXCEPT);
 }
 
 int fegetexcept(void) {
-  fenv_t __fpscr;
-  fegetenv(&__fpscr);
-  return ((__fpscr & _FPSCR_ENABLE_MASK) >> _FPSCR_ENABLE_SHIFT);
+  fpu_control_t fpcr;
+
+  __get_fpcr(fpcr);
+  return ((fpcr & FPCR_EXCEPT_MASK) >> FPCR_EXCEPT_SHIFT);
 }
diff --git a/libm/i387/fenv.c b/libm/i387/fenv.c
index 3ab9c58..f64f8dc 100644
--- a/libm/i387/fenv.c
+++ b/libm/i387/fenv.c
@@ -31,6 +31,8 @@
 #include "npx.h"
 #include "fenv.h"
 
+#define ROUND_MASK   (FE_TONEAREST | FE_DOWNWARD | FE_UPWARD | FE_TOWARDZERO)
+
 /*
  * As compared to the x87 control word, the SSE unit's control word
  * has the rounding control bits offset by 3 and the exception mask
@@ -327,7 +329,7 @@
    * unit on an Opteron 244.
    */
   __fnstcw(&control);
-  return (control & _ROUND_MASK);
+  return (control & ROUND_MASK);
 }
 
 int
@@ -336,16 +338,16 @@
   __uint32_t mxcsr;
   __uint16_t control;
 
-  if (round & ~_ROUND_MASK) {
+  if (round & ~ROUND_MASK) {
     return (-1);
   } else {
     __fnstcw(&control);
-    control &= ~_ROUND_MASK;
+    control &= ~ROUND_MASK;
     control |= round;
     __fldcw(control);
     if (__HAS_SSE()) {
       __stmxcsr(&mxcsr);
-      mxcsr &= ~(_ROUND_MASK << _SSE_ROUND_SHIFT);
+      mxcsr &= ~(ROUND_MASK << _SSE_ROUND_SHIFT);
       mxcsr |= round << _SSE_ROUND_SHIFT;
       __ldmxcsr(mxcsr);
     }
diff --git a/libm/include/amd64/machine/fenv.h b/libm/include/amd64/machine/fenv.h
index 79a4120..c2b25ed 100644
--- a/libm/include/amd64/machine/fenv.h
+++ b/libm/include/amd64/machine/fenv.h
@@ -51,7 +51,6 @@
  */
 #define FE_ALL_EXCEPT   (FE_INVALID | FE_DENORMAL | FE_DIVBYZERO | \
                          FE_OVERFLOW | FE_UNDERFLOW | FE_INEXACT)
-#define _SSE_MASK_SHIFT 7
 
 /*
  * Each symbol representing the rounding direction, expands to an integer
@@ -65,14 +64,6 @@
 #define FE_TOWARDZERO 0xc00
 
 /*
- * The following symbol is simply the bitwise-inclusive OR of all floating-point
- * rounding direction constants defined above.
- */
-#define _X87_ROUND_MASK  (FE_TONEAREST | FE_DOWNWARD | FE_UPWARD | \
-                          FE_TOWARDZERO)
-#define _SSE_ROUND_SHIFT 3
-
-/*
  * fenv_t represents the entire floating-point environment.
  */
 typedef struct {
diff --git a/libm/include/arm/machine/fenv.h b/libm/include/arm/machine/fenv.h
index d8749dd..0e483e3 100644
--- a/libm/include/arm/machine/fenv.h
+++ b/libm/include/arm/machine/fenv.h
@@ -52,17 +52,12 @@
 #define FE_ALL_EXCEPT (FE_DIVBYZERO | FE_INEXACT | FE_INVALID | \
                        FE_OVERFLOW | FE_UNDERFLOW)
 
-#define _FPSCR_ENABLE_SHIFT 8
-#define _FPSCR_ENABLE_MASK  (FE_ALL_EXCEPT << _FPSCR_ENABLE_SHIFT)
-
 /* Rounding modes. */
 #define FE_TONEAREST  0x0
 #define FE_UPWARD     0x1
 #define FE_DOWNWARD   0x2
 #define FE_TOWARDZERO 0x3
 
-#define _FPSCR_RMODE_SHIFT 22
-
 __END_DECLS
 
 #endif /* !_ARM_FENV_H_ */
diff --git a/libm/include/arm64/machine/fenv.h b/libm/include/arm64/machine/fenv.h
index 2efeee3..a8568b8 100644
--- a/libm/include/arm64/machine/fenv.h
+++ b/libm/include/arm64/machine/fenv.h
@@ -27,15 +27,44 @@
  */
 
 /*
- * Rewritten for Android.
+ * In ARMv8, AArch64 state, floating-point operation is controlled by:
  *
- * The ARM FPSCR (Floating-point Status and Control Register) described here:
- * http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.ddi0344b/Chdfafia.html
- * has been split into the FPCR (Floating-point Control Register) and FPSR
- * (Floating-point Status Register) on the ARMv8. These are described briefly in
- * "Procedure Call Standard for the ARM 64-bit Architecture"
- * http://infocenter.arm.com/help/topic/com.arm.doc.ihi0055a/IHI0055A_aapcs64.pdf
- * section 5.1.2 SIMD and Floating-Point Registers
+ *  * FPCR - 32Bit Floating-Point Control Register:
+ *      * [31:27] - Reserved, Res0;
+ *      * [26]    - AHP, Alternative half-precision control bit;
+ *      * [25]    - DN, Default NaN mode control bit;
+ *      * [24]    - FZ, Flush-to-zero mode control bit;
+ *      * [23:22] - RMode, Rounding Mode control field:
+ *            * 00  - Round to Nearest (RN) mode;
+ *            * 01  - Round towards Plus Infinity (RP) mode;
+ *            * 10  - Round towards Minus Infinity (RM) mode;
+ *            * 11  - Round towards Zero (RZ) mode.
+ *      * [21:20] - Stride, ignored during AArch64 execution;
+ *      * [19]    - Reserved, Res0;
+ *      * [18:16] - Len, ignored during AArch64 execution;
+ *      * [15]    - IDE, Input Denormal exception trap;
+ *      * [14:13] - Reserved, Res0;
+ *      * [12]    - IXE, Inexact exception trap;
+ *      * [11]    - UFE, Underflow exception trap;
+ *      * [10]    - OFE, Overflow exception trap;
+ *      * [9]     - DZE, Division by Zero exception;
+ *      * [8]     - IOE, Invalid Operation exception;
+ *      * [7:0]   - Reserved, Res0.
+ *
+ *  * FPSR - 32Bit Floating-Point Status Register:
+ *      * [31]    - N, Negative condition flag for AArch32 (AArch64 sets PSTATE.N);
+ *      * [30]    - Z, Zero condition flag for AArch32 (AArch64 sets PSTATE.Z);
+ *      * [29]    - C, Carry conditon flag for AArch32 (AArch64 sets PSTATE.C);
+ *      * [28]    - V, Overflow conditon flag for AArch32 (AArch64 sets PSTATE.V);
+ *      * [27]    - QC, Cumulative saturation bit, Advanced SIMD only;
+ *      * [26:8]  - Reserved, Res0;
+ *      * [7]     - IDC, Input Denormal cumulative exception;
+ *      * [6:5]   - Reserved, Res0;
+ *      * [4]     - IXC, Inexact cumulative exception;
+ *      * [3]     - UFC, Underflow cumulative exception;
+ *      * [2]     - OFC, Overflow cumulative exception;
+ *      * [1]     - DZC, Division by Zero cumulative exception;
+ *      * [0]     - IOC, Invalid Operation cumulative exception.
  */
 
 #ifndef _ARM64_FENV_H_
@@ -45,7 +74,11 @@
 
 __BEGIN_DECLS
 
-typedef __uint32_t fenv_t;
+typedef struct {
+  __uint32_t __control;     /* FPCR, Floating-point Control Register */
+  __uint32_t __status;      /* FPSR, Floating-point Status Register */
+} fenv_t;
+
 typedef __uint32_t fexcept_t;
 
 /* Exception flags. */
@@ -54,11 +87,9 @@
 #define FE_OVERFLOW   0x04
 #define FE_UNDERFLOW  0x08
 #define FE_INEXACT    0x10
+#define FE_DENORMAL   0x80
 #define FE_ALL_EXCEPT (FE_DIVBYZERO | FE_INEXACT | FE_INVALID | \
-                       FE_OVERFLOW | FE_UNDERFLOW)
-
-#define _FPSCR_ENABLE_SHIFT 8
-#define _FPSCR_ENABLE_MASK  (FE_ALL_EXCEPT << _FPSCR_ENABLE_SHIFT)
+                       FE_OVERFLOW | FE_UNDERFLOW | FE_DENORMAL)
 
 /* Rounding modes. */
 #define FE_TONEAREST  0x0
@@ -66,56 +97,6 @@
 #define FE_DOWNWARD   0x2
 #define FE_TOWARDZERO 0x3
 
-#define _FPSCR_RMODE_SHIFT 22
-
-#define FPCR_IOE    (1 << 8)
-#define FPCR_DZE    (1 << 9)
-#define FPCR_OFE    (1 << 10)
-#define FPCR_UFE    (1 << 11)
-#define FPCR_IXE    (1 << 12)
-#define FPCR_IDE    (1 << 15)
-#define FPCR_LEN    (7 << 16)
-#define FPCR_STRIDE (3 << 20)
-#define FPCR_RMODE  (3 << 22)
-#define FPCR_FZ     (1 << 24)
-#define FPCR_DN     (1 << 25)
-#define FPCR_AHP    (1 << 26)
-#define FPCR_MASK   (FPCR_IOE | \
-                     FPCR_DZE | \
-                     FPCR_OFE | \
-                     FPCR_UFE | \
-                     FPCR_IXE | \
-                     FPCR_IDE | \
-                     FPCR_LEN | \
-                     FPCR_STRIDE | \
-                     FPCR_RMODE | \
-                     FPCR_FZ | \
-                     FPCR_DN | \
-                     FPCR_AHP )
-
-#define FPSR_IOC    (1 << 0)
-#define FPSR_DZC    (1 << 1)
-#define FPSR_OFC    (1 << 2)
-#define FPSR_UFC    (1 << 3)
-#define FPSR_IXC    (1 << 4)
-#define FPSR_IDC    (1 << 7)
-#define FPSR_QC     (1 << 27)
-#define FPSR_V      (1 << 28)
-#define FPSR_C      (1 << 29)
-#define FPSR_Z      (1 << 30)
-#define FPSR_N      (1 << 31)
-#define FPSR_MASK   (FPSR_IOC | \
-                     FPSR_DZC | \
-                     FPSR_OFC | \
-                     FPSR_UFC | \
-                     FPSR_IXC | \
-                     FPSR_IDC | \
-                     FPSR_QC | \
-                     FPSR_V | \
-                     FPSR_C | \
-                     FPSR_Z | \
-                     FPSR_N )
-
 __END_DECLS
 
 #endif /* !_ARM64_FENV_H_ */
diff --git a/libm/include/i387/machine/fenv.h b/libm/include/i387/machine/fenv.h
index f3fabb6..de45add 100644
--- a/libm/include/i387/machine/fenv.h
+++ b/libm/include/i387/machine/fenv.h
@@ -63,8 +63,6 @@
 #define FE_DOWNWARD   0x0400
 #define FE_UPWARD     0x0800
 #define FE_TOWARDZERO 0x0c00
-#define _ROUND_MASK   (FE_TONEAREST | FE_DOWNWARD | \
-                       FE_UPWARD | FE_TOWARDZERO)
 
 __END_DECLS
 
diff --git a/libm/include/mips/machine/fenv.h b/libm/include/mips/machine/fenv.h
index 37f0f9c..689e1cb 100644
--- a/libm/include/mips/machine/fenv.h
+++ b/libm/include/mips/machine/fenv.h
@@ -87,19 +87,12 @@
 #define FE_ALL_EXCEPT (FE_DIVBYZERO | FE_INEXACT | \
                        FE_INVALID | FE_OVERFLOW | FE_UNDERFLOW)
 
-#define _FCSR_CAUSE_SHIFT 10
-#define _ENABLE_SHIFT     5
-#define _FCSR_ENABLE_MASK (FE_ALL_EXCEPT << _ENABLE_SHIFT)
-
 /* Rounding modes */
 #define FE_TONEAREST  0x0000
 #define FE_TOWARDZERO 0x0001
 #define FE_UPWARD     0x0002
 #define FE_DOWNWARD   0x0003
 
-#define _FCSR_RMODE_SHIFT 0
-#define _FCSR_RMASK       0x3
-
 __END_DECLS
 
 #endif /* !_MIPS_FENV_H_ */
diff --git a/libm/mips/fenv.c b/libm/mips/fenv.c
index 893bc30..aacd526 100644
--- a/libm/mips/fenv.c
+++ b/libm/mips/fenv.c
@@ -28,6 +28,12 @@
 
 #include <fenv.h>
 
+#define FCSR_CAUSE_SHIFT 10
+#define FCSR_ENABLE_SHIFT 5
+#define FCSR_ENABLE_MASK (FE_ALL_EXCEPT << FCSR_ENABLE_SHIFT)
+
+#define FCSR_RMASK       0x3
+
 /*
  * Hopefully the system ID byte is immutable, so it's valid to use
  * this as a default environment.
@@ -55,7 +61,7 @@
   fexcept_t __fcsr;
   fegetenv(&__fcsr);
   __excepts &= FE_ALL_EXCEPT;
-  __fcsr &= ~(__excepts | (__excepts << _FCSR_CAUSE_SHIFT));
+  __fcsr &= ~(__excepts | (__excepts << FCSR_CAUSE_SHIFT));
   fesetenv(&__fcsr);
   return 0;
 }
@@ -84,7 +90,7 @@
   /* Ensure that flags are all legal */
   __excepts &= FE_ALL_EXCEPT;
   /* Cause bit needs to be set as well for generating the exception*/
-  __fcsr |= __excepts | (__excepts << _FCSR_CAUSE_SHIFT);
+  __fcsr |= __excepts | (__excepts << FCSR_CAUSE_SHIFT);
   fesetenv(&__fcsr);
   return 0;
 }
@@ -98,14 +104,14 @@
 int fegetround(void) {
   fenv_t _fcsr;
   fegetenv(&_fcsr);
-  return (_fcsr & _FCSR_RMASK);
+  return (_fcsr & FCSR_RMASK);
 }
 
 int fesetround(int __round) {
   fenv_t _fcsr;
   fegetenv(&_fcsr);
-  _fcsr &= ~_FCSR_RMASK;
-  _fcsr |= (__round & _FCSR_RMASK ) ;
+  _fcsr &= ~FCSR_RMASK;
+  _fcsr |= (__round & FCSR_RMASK);
   fesetenv(&_fcsr);
   return 0;
 }
@@ -114,7 +120,7 @@
   fenv_t __env;
   fegetenv(&__env);
   *__envp = __env;
-  __env &= ~(FE_ALL_EXCEPT | _FCSR_ENABLE_MASK);
+  __env &= ~(FE_ALL_EXCEPT | FCSR_ENABLE_MASK);
   fesetenv(&__env);
   return 0;
 }
@@ -130,21 +136,21 @@
 int feenableexcept(int __mask) {
   fenv_t __old_fcsr, __new_fcsr;
   fegetenv(&__old_fcsr);
-  __new_fcsr = __old_fcsr | (__mask & FE_ALL_EXCEPT) << _ENABLE_SHIFT;
+  __new_fcsr = __old_fcsr | (__mask & FE_ALL_EXCEPT) << FCSR_ENABLE_SHIFT;
   fesetenv(&__new_fcsr);
-  return ((__old_fcsr >> _ENABLE_SHIFT) & FE_ALL_EXCEPT);
+  return ((__old_fcsr >> FCSR_ENABLE_SHIFT) & FE_ALL_EXCEPT);
 }
 
 int fedisableexcept(int __mask) {
   fenv_t __old_fcsr, __new_fcsr;
   fegetenv(&__old_fcsr);
-  __new_fcsr = __old_fcsr & ~((__mask & FE_ALL_EXCEPT) << _ENABLE_SHIFT);
+  __new_fcsr = __old_fcsr & ~((__mask & FE_ALL_EXCEPT) << FCSR_ENABLE_SHIFT);
   fesetenv(&__new_fcsr);
-  return ((__old_fcsr >> _ENABLE_SHIFT) & FE_ALL_EXCEPT);
+  return ((__old_fcsr >> FCSR_ENABLE_SHIFT) & FE_ALL_EXCEPT);
 }
 
 int fegetexcept(void) {
   fenv_t __fcsr;
   fegetenv(&__fcsr);
-  return ((__fcsr & _FCSR_ENABLE_MASK) >> _ENABLE_SHIFT);
+  return ((__fcsr & FCSR_ENABLE_MASK) >> FCSR_ENABLE_SHIFT);
 }
diff --git a/tests/math_test.cpp b/tests/math_test.cpp
index b0d541a..b4f5b14 100644
--- a/tests/math_test.cpp
+++ b/tests/math_test.cpp
@@ -1295,3 +1295,18 @@
   float fr = frexpf(14.1f, &exp);
   ASSERT_FLOAT_EQ(14.1f, scalbnf(fr, exp));
 }
+
+TEST(math, exp2_STRICT_ALIGN_OpenBSD_bug) {
+  // OpenBSD/x86's libm had a bug here, but it was already fixed in FreeBSD:
+  // http://svnweb.FreeBSD.org/base/head/lib/msun/src/math_private.h?revision=240827&view=markup
+  ASSERT_DOUBLE_EQ(5.0, exp2(log2(5)));
+  ASSERT_FLOAT_EQ(5.0f, exp2f(log2f(5)));
+  ASSERT_DOUBLE_EQ(5.0L, exp2l(log2l(5)));
+}
+
+TEST(math, nextafterl_OpenBSD_bug) {
+  // OpenBSD/x86's libm had a bug here.
+  ASSERT_TRUE(nextafter(1.0, 0.0) - 1.0 < 0.0);
+  ASSERT_TRUE(nextafterf(1.0f, 0.0f) - 1.0f < 0.0f);
+  ASSERT_TRUE(nextafterl(1.0L, 0.0L) - 1.0L < 0.0L);
+}