mirror of
https://github.com/Zenithsiz/ftmemsim-valgrind.git
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4e12afbac2
into the core. Renamed them with capital letters at the same time (eg. arg1-->ARG1, res-->RES) to reduce likelihood of name conflicts, and also it doesn't hurt to make it clearer that they're macros. The result is a very big diff, but conceptually it's very simple. git-svn-id: svn://svn.valgrind.org/valgrind/trunk@3126
124 lines
5.4 KiB
C
124 lines
5.4 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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Dealing with registers
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------------------------------------------------------------------ */
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// Accessors for the ThreadArchState
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#define PLATFORM_SYSCALL_NUM guest_EAX
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#define PLATFORM_SYSCALL_ARG1 guest_EBX
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#define PLATFORM_SYSCALL_ARG2 guest_ECX
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#define PLATFORM_SYSCALL_ARG3 guest_EDX
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#define PLATFORM_SYSCALL_ARG4 guest_ESI
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#define PLATFORM_SYSCALL_ARG5 guest_EDI
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#define PLATFORM_SYSCALL_ARG6 guest_EBP
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#define PLATFORM_SYSCALL_RET guest_EAX
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// Setting a syscall result
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#define PLATFORM_SET_SYSCALL_RESULT(regs, val) \
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((regs).vex.guest_EAX = (val))
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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, SYSCALL_RET, post_reg_write, \
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Vg_CoreSysCall, zztid, O_SYSCALL_RET, sizeof(UWord))
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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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vki_modify_ldt_t* info );
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extern Int VG_(sys_get_thread_area) ( ThreadId tid,
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vki_modify_ldt_t* 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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mmap() stuff
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------------------------------------------------------------------ */
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#define PLATFORM_DO_MMAP(ret, start, length, prot, flags, fd, offset) { \
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UWord __args[6]; \
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\
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__args[0] = (UWord)(start); \
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__args[1] = (length); \
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__args[2] = (prot); \
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__args[3] = (flags); \
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__args[4] = (fd); \
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__args[5] = (offset); \
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\
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ret = VG_(do_syscall)(__NR_mmap, (UWord)(&(__args[0])) ); \
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}
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#define PLATFORM_GET_MMAP_ARGS(tst, a1, a2, a3, a4, a5, a6) do {\
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UInt *arg_block = (UInt*)SYSCALL_ARG1(tst->arch); \
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PRE_MEM_READ( "old_mmap(args)", (Addr)arg_block, 6*sizeof(UWord) );\
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a1 = arg_block[0]; \
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a2 = arg_block[1]; \
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a3 = arg_block[2]; \
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a4 = arg_block[3]; \
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a5 = arg_block[4]; \
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a6 = arg_block[5]; \
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} while (0)
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#endif // __X86_LINUX_CORE_PLATFORM_H
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/*--------------------------------------------------------------------*/
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/*--- end ---*/
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/*--------------------------------------------------------------------*/
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