diff options
Diffstat (limited to 'ANDROID_3.4.5/arch/x86/lib/cmpxchg8b_emu.S')
| -rw-r--r-- | ANDROID_3.4.5/arch/x86/lib/cmpxchg8b_emu.S | 57 |
1 files changed, 0 insertions, 57 deletions
diff --git a/ANDROID_3.4.5/arch/x86/lib/cmpxchg8b_emu.S b/ANDROID_3.4.5/arch/x86/lib/cmpxchg8b_emu.S deleted file mode 100644 index 828cb710..00000000 --- a/ANDROID_3.4.5/arch/x86/lib/cmpxchg8b_emu.S +++ /dev/null @@ -1,57 +0,0 @@ -/* - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; version 2 - * of the License. - * - */ - -#include <linux/linkage.h> -#include <asm/alternative-asm.h> -#include <asm/frame.h> -#include <asm/dwarf2.h> - - -.text - -/* - * Inputs: - * %esi : memory location to compare - * %eax : low 32 bits of old value - * %edx : high 32 bits of old value - * %ebx : low 32 bits of new value - * %ecx : high 32 bits of new value - */ -ENTRY(cmpxchg8b_emu) -CFI_STARTPROC - -# -# Emulate 'cmpxchg8b (%esi)' on UP except we don't -# set the whole ZF thing (caller will just compare -# eax:edx with the expected value) -# -cmpxchg8b_emu: - pushfl - cli - - cmpl (%esi), %eax - jne not_same - cmpl 4(%esi), %edx - jne half_same - - movl %ebx, (%esi) - movl %ecx, 4(%esi) - - popfl - ret - - not_same: - movl (%esi), %eax - half_same: - movl 4(%esi), %edx - - popfl - ret - -CFI_ENDPROC -ENDPROC(cmpxchg8b_emu) |