mirror of
https://github.com/Zenithsiz/ftmemsim-valgrind.git
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d1ad5601fb
- factor out differences in ucontext types across different archs. git-svn-id: svn://svn.valgrind.org/valgrind/trunk@2751
99 lines
4.1 KiB
C
99 lines
4.1 KiB
C
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/*--------------------------------------------------------------------*/
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/*--- x86-Linux-specific stuff for the core. ---*/
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/*--- x86-linux/core_platform.h ---*/
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/*--------------------------------------------------------------------*/
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/*
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This file is part of Valgrind, an extensible x86 protected-mode
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emulator for monitoring program execution on x86-Unixes.
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Copyright (C) 2000-2004 Nicholas Nethercote
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njn25@cam.ac.uk
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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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#ifndef __X86_LINUX_CORE_PLATFORM_H
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#define __X86_LINUX_CORE_PLATFORM_H
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//#include "core_platform_asm.h" // platform-specific asm stuff
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//#include "platform_arch.h" // platform-specific tool stuff
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/* ---------------------------------------------------------------------
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Interesting registers
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------------------------------------------------------------------ */
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// Accessors for the arch_thread_t
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#define PLATFORM_SYSCALL_NUM(regs) ((regs).m_eax)
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#define PLATFORM_SYSCALL_RET(regs) ((regs).m_eax)
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#define PLATFORM_SYSCALL_ARG1(regs) ((regs).m_ebx)
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#define PLATFORM_SYSCALL_ARG2(regs) ((regs).m_ecx)
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#define PLATFORM_SYSCALL_ARG3(regs) ((regs).m_edx)
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#define PLATFORM_SYSCALL_ARG4(regs) ((regs).m_esi)
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#define PLATFORM_SYSCALL_ARG5(regs) ((regs).m_edi)
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#define PLATFORM_SYSCALL_ARG6(regs) ((regs).m_ebp)
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#define PLATFORM_PRE_SYSCALL_RESULT(regs, val) ((regs).m_eax = (val))
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// Interesting register numbers
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#define R_SYSCALL_NUM R_EAX
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#define R_SYSCALL_ARG1 R_EBX
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#define R_SYSCALL_RET R_EAX
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// Setting thread regs and shadow regs from within the core
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#define SET_SYSCALL_RETVAL(zztid, zzval) \
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SET_THREAD_REG(zztid, zzval, PLATFORM_SYSCALL_RET, R_SYSCALL_RET, \
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post_reg_write_syscall_return)
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#endif // __X86_LINUX_CORE_PLATFORM_H
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/* ---------------------------------------------------------------------
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Exports of vg_ldt.c
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------------------------------------------------------------------ */
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// XXX: eventually all these should be x86-private, and not visible to the
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// core (except maybe do_useseg()?)
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/* Simulate the modify_ldt syscall. */
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extern Int VG_(sys_modify_ldt) ( ThreadId tid,
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Int func, void* ptr, UInt bytecount );
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/* Simulate the {get,set}_thread_area syscalls. */
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extern Int VG_(sys_set_thread_area) ( ThreadId tid,
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struct vki_modify_ldt_ldt_s* info );
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extern Int VG_(sys_get_thread_area) ( ThreadId tid,
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struct vki_modify_ldt_ldt_s* info );
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/* Called from generated code. Given a segment selector and a virtual
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address, return a linear address, and do limit checks too. */
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extern Addr VG_(do_useseg) ( UInt seg_selector, Addr virtual_addr );
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/* ---------------------------------------------------------------------
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ucontext stuff
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------------------------------------------------------------------ */
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#define UCONTEXT_INSTR_PTR(uc) ((uc)->uc_mcontext.eip)
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#define UCONTEXT_STACK_PTR(uc) ((uc)->uc_mcontext.esp)
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#define UCONTEXT_FRAME_PTR(uc) ((uc)->uc_mcontext.ebp)
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#define UCONTEXT_SYSCALL_NUM(uc) ((uc)->uc_mcontext.eax)
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/*--------------------------------------------------------------------*/
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/*--- end ---*/
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/*--------------------------------------------------------------------*/
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