Unify our assembler macros.

Our <machine/asm.h> files were modified from upstream, to the extent
that no architecture was actually using the upstream ENTRY or END macros,
assuming that architecture even had such a macro upstream. This patch moves
everyone to the same macros, with just a few tweaks remaining in the
<machine/asm.h> files, which no one should now use directly.

I've removed most of the unused cruft from the <machine/asm.h> files, though
there's still rather a lot in the mips/mips64 ones.

Bug: 12229603
Change-Id: I2fff287dc571ac1087abe9070362fb9420d85d6d
diff --git a/libc/arch-arm/bionic/__get_sp.S b/libc/arch-arm/bionic/__get_sp.S
index 2a7e7b7..aabec6d 100644
--- a/libc/arch-arm/bionic/__get_sp.S
+++ b/libc/arch-arm/bionic/__get_sp.S
@@ -26,7 +26,7 @@
  * SUCH DAMAGE.
  */
 
-#include <machine/asm.h>
+#include <private/bionic_asm.h>
 
 ENTRY(__get_sp)
   mov r0, sp
diff --git a/libc/arch-arm/bionic/_setjmp.S b/libc/arch-arm/bionic/_setjmp.S
index 239947e..64a0a31 100644
--- a/libc/arch-arm/bionic/_setjmp.S
+++ b/libc/arch-arm/bionic/_setjmp.S
@@ -34,7 +34,7 @@
  * SUCH DAMAGE.
  */
 
-#include <machine/asm.h>
+#include <private/bionic_asm.h>
 #include <machine/setjmp.h>
 #include <machine/cpu-features.h>
 
diff --git a/libc/arch-arm/bionic/abort_arm.S b/libc/arch-arm/bionic/abort_arm.S
index 1d01ed2..6b181ef 100644
--- a/libc/arch-arm/bionic/abort_arm.S
+++ b/libc/arch-arm/bionic/abort_arm.S
@@ -26,7 +26,7 @@
  * SUCH DAMAGE.
  */
 
-#include <machine/asm.h>
+#include <private/bionic_asm.h>
 
 /*
  * Coding the abort function in assembly so that registers are guaranteed to
diff --git a/libc/arch-arm/bionic/memcmp.S b/libc/arch-arm/bionic/memcmp.S
index 0dc3af0..70a2a58 100644
--- a/libc/arch-arm/bionic/memcmp.S
+++ b/libc/arch-arm/bionic/memcmp.S
@@ -27,7 +27,7 @@
  */
 
 #include <machine/cpu-features.h>
-#include <machine/asm.h>
+#include <private/bionic_asm.h>
 
 
 #ifdef HAVE_32_BYTE_CACHE_LINE
diff --git a/libc/arch-arm/bionic/memcmp16.S b/libc/arch-arm/bionic/memcmp16.S
index afbb1b0..3f2f2f1 100644
--- a/libc/arch-arm/bionic/memcmp16.S
+++ b/libc/arch-arm/bionic/memcmp16.S
@@ -27,7 +27,7 @@
  */
 
 #include <machine/cpu-features.h>
-#include <machine/asm.h>
+#include <private/bionic_asm.h>
 
 /*
  * Optimized memcmp16() for ARM9.
diff --git a/libc/arch-arm/bionic/memcpy.S b/libc/arch-arm/bionic/memcpy.S
index f25b3e3..2c9b10c 100644
--- a/libc/arch-arm/bionic/memcpy.S
+++ b/libc/arch-arm/bionic/memcpy.S
@@ -27,7 +27,7 @@
  */
 
 #include <machine/cpu-features.h>
-#include <machine/asm.h>
+#include <private/bionic_asm.h>
 
 #if defined(__ARM_NEON__) && !defined(ARCH_ARM_USE_NON_NEON_MEMCPY)
 
diff --git a/libc/arch-arm/bionic/memcpy.a9.S b/libc/arch-arm/bionic/memcpy.a9.S
index 2ba1ff5..259701d 100644
--- a/libc/arch-arm/bionic/memcpy.a9.S
+++ b/libc/arch-arm/bionic/memcpy.a9.S
@@ -44,7 +44,7 @@
  */
 
 #include <machine/cpu-features.h>
-#include <machine/asm.h>
+#include <private/bionic_asm.h>
 
 	.syntax unified
 	/* This implementation requires ARM state.  */
diff --git a/libc/arch-arm/bionic/setjmp.S b/libc/arch-arm/bionic/setjmp.S
index 8927086..ed59d07 100644
--- a/libc/arch-arm/bionic/setjmp.S
+++ b/libc/arch-arm/bionic/setjmp.S
@@ -34,7 +34,7 @@
  * SUCH DAMAGE.
  */
 
-#include <machine/asm.h>
+#include <private/bionic_asm.h>
 #include <machine/setjmp.h>
 #include <machine/cpu-features.h>
 
@@ -112,7 +112,7 @@
 
 	add	sp, sp, #4	/* unalign the stack */
 	.cfi_adjust_cfa_offset -4
-	ldmfd	sp!, {r0, r1, r14} 
+	ldmfd	sp!, {r0, r1, r14}
 	.cfi_def_cfa_offset 0
 
 #ifdef __ARM_HAVE_VFP
diff --git a/libc/arch-arm/bionic/sigsetjmp.S b/libc/arch-arm/bionic/sigsetjmp.S
index 59ab9da..7016f50 100644
--- a/libc/arch-arm/bionic/sigsetjmp.S
+++ b/libc/arch-arm/bionic/sigsetjmp.S
@@ -35,7 +35,7 @@
 
 #define _ALIGN_TEXT .align 0
 
-#include <machine/asm.h>
+#include <private/bionic_asm.h>
 #include <machine/setjmp.h>
 
 /*
diff --git a/libc/arch-arm/bionic/strcmp.S b/libc/arch-arm/bionic/strcmp.S
index 42d41d1..6dba942 100644
--- a/libc/arch-arm/bionic/strcmp.S
+++ b/libc/arch-arm/bionic/strcmp.S
@@ -28,7 +28,7 @@
  */
 
 #include <machine/cpu-features.h>
-#include <machine/asm.h>
+#include <private/bionic_asm.h>
 
 	.text