mirror of
https://github.com/Zenithsiz/ftmemsim-valgrind.git
synced 2026-02-03 10:05:29 +00:00
c5931781bc
in the CPUID data on recent Intel processors. git-svn-id: svn://svn.valgrind.org/valgrind/trunk@11810
162 lines
4.0 KiB
ArmAsm
162 lines
4.0 KiB
ArmAsm
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/*--------------------------------------------------------------------*/
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/*--- CPUID interface. m_cpuid.S ---*/
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/*--------------------------------------------------------------------*/
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/*
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This file is part of Valgrind, a dynamic binary instrumentation
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framework.
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Copyright (C) 2000-2010 Julian Seward
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jseward@acm.org
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307, USA.
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The GNU General Public License is contained in the file COPYING.
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*/
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#include "pub_core_basics_asm.h"
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/*
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Bool VG_(has_cpuid)(void)
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*/
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#if defined(VGA_x86)
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.text
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.globl VG_(has_cpuid)
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VG_(has_cpuid):
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pushl %ebp
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movl %esp, %ebp
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pushl %ecx
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pushfl
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pushfl
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popl %eax
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movl %eax, %ecx
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xorl $0x200000, %eax
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pushl %eax
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popfl
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pushfl
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popl %eax
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popfl
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xorl %ecx, %eax
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andl $0x200000, %eax
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shrl $21, %eax
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popl %ecx
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movl %ebp, %esp
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popl %ebp
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ret
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#elif defined(VGA_amd64)
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.text
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.globl VG_(has_cpuid)
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VG_(has_cpuid):
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movq $1, %rax
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ret
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#endif
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/*
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void VG_(cpuid)(UInt eax, UInt ecx,
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UInt* eax_ret, UInt* ebx_ret, UInt* ecx_ret, UInt* edx_ret)
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*/
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#if defined(VGA_x86)
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.text
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.globl VG_(cpuid)
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VG_(cpuid):
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pushl %ebp
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movl %esp, %ebp
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pushl %eax
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pushl %ebx
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pushl %ecx
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pushl %edx
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pushl %esi
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movl 8(%ebp), %eax
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movl 12(%ebp), %ecx
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cpuid
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movl 16(%ebp), %esi
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testl %esi, %esi
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jz 1f
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movl %eax, (%esi)
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1:
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movl 20(%ebp), %esi
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testl %esi, %esi
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jz 2f
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movl %ebx, (%esi)
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2:
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movl 24(%ebp), %esi
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testl %esi, %esi
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jz 3f
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movl %ecx, (%esi)
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3:
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movl 28(%ebp), %esi
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testl %esi, %esi
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jz 4f
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movl %edx, (%esi)
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4:
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popl %esi
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popl %edx
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popl %ecx
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popl %ebx
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popl %eax
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movl %ebp, %esp
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popl %ebp
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ret
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#elif defined(VGA_amd64)
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.text
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.globl VG_(cpuid)
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VG_(cpuid):
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pushq %rbp
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movq %rsp, %rbp
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pushq %rbx
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movl %edi, %eax
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movq %rcx, %rdi
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movl %esi, %ecx
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movq %rdx, %rsi
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/*
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eax_ret now in %rsi
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ebx_ret now in %rdi
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ecx_ret now in %r8
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edx_ret now in %r9
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*/
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cpuid
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testq %rsi, %rsi
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jz 1f
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movl %eax, (%rsi)
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1:
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testq %rdi, %rdi
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jz 2f
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movl %ebx, (%rdi)
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2:
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testq %r8, %r8
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jz 3f
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movl %ecx, (%r8)
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3:
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testq %r9, %r9
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jz 4f
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movl %edx, (%r9)
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4:
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popq %rbx
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movq %rbp, %rsp
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popq %rbp
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ret
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#endif
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#if defined(VGP_x86_linux) || defined(VGP_amd64_linux)
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/* Let the linker know we don't need an executable stack */
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.section .note.GNU-stack,"",@progbits
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#endif
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/*--------------------------------------------------------------------*/
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/*--- end ---*/
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/*--------------------------------------------------------------------*/
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