mirror of
https://github.com/Zenithsiz/ftmemsim-valgrind.git
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514f201d55
namespace pollution. Also broadened a couple of _dl_* suppressions so that vgtest_ume passes on my machine. git-svn-id: svn://svn.valgrind.org/valgrind/trunk@3993
124 lines
4.6 KiB
C
124 lines
4.6 KiB
C
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/*--------------------------------------------------------------------*/
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/*--- User-mode execve. pub_core_ume.h ---*/
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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) 2000-2005 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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#ifndef __PUB_CORE_UME_H
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#define __PUB_CORE_UME_H
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//--------------------------------------------------------------------
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// PURPOSE: This module implements user-mode execve, ie. program loading
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// and exec'ing. It is shared between stage1 and stage2.
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//--------------------------------------------------------------------
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#include <elf.h>
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#include <sys/types.h>
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/*------------------------------------------------------------*/
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/*--- General stuff ---*/
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/*------------------------------------------------------------*/
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/* This is only here so it can be shared between stage1 and stage2 */
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extern
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void VG_(foreach_map)(int (*fn)(char *start, char *end,
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const char *perm, off_t offset,
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int maj, int min, int ino, void* extra),
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void* extra);
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/* Jump to 'dst', but first set the stack pointer to 'stack'. Also,
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clear all the integer registers before entering 'dst'. It's
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important that the stack pointer is set to exactly 'stack' and not
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(eg) stack - apparently_harmless_looking_small_offset. Basically
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because the code at 'dst' might be wanting to scan the area above
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'stack' (viz, the auxv array), and putting spurious words on the
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stack confuses it.
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This is only exported so that vgtest_ume.c can use it.
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*/
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extern
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__attribute__((noreturn))
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void VG_(jump_and_switch_stacks) ( Addr stack, Addr dst );
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/*------------------------------------------------------------*/
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/*--- Loading ELF files ---*/
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/*------------------------------------------------------------*/
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// Info needed to load and run a program. IN/INOUT/OUT refers to the
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// inputs/outputs of do_exec().
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struct exeinfo
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{
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Addr map_base; // IN: if non-zero, base address of mappings
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char** argv; // IN: the original argv
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Addr exe_base; // INOUT: lowest (allowed) address of exe
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Addr exe_end; // INOUT: highest (allowed) address
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Addr phdr; // OUT: address phdr was mapped at
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int phnum; // OUT: number of phdrs
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Addr interp_base; // OUT: where interpreter (ld.so) was mapped
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Addr entry; // OUT: entrypoint in main executable
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Addr init_eip; // OUT: initial eip
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Addr brkbase; // OUT: base address of brk segment
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// These are the extra args added by #! scripts
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char* interp_name; // OUT: the interpreter name
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char* interp_args; // OUT: the args for the interpreter
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};
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// Does everything short of actually running 'exe': finds the file,
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// checks execute permissions, sets up interpreter if program is a script,
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// reads headers, maps file into memory, and returns important info about
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// the program.
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extern int VG_(do_exec)(const char *exe, struct exeinfo *info);
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/*------------------------------------------------------------*/
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/*--- Finding and dealing with auxv ---*/
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/*------------------------------------------------------------*/
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struct ume_auxv
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{
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Word a_type;
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union {
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void *a_ptr;
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Word a_val;
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} u;
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};
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extern struct ume_auxv *VG_(find_auxv)(UWord* orig_esp);
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/* Our private auxv entries */
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#define AT_UME_PADFD 0xff01 /* padding file fd */
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#define AT_UME_EXECFD 0xff02 /* stage1 executable fd */
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#endif /* __PUB_CORE_UME_H */
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/*--------------------------------------------------------------------*/
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/*--- end ---*/
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/*--------------------------------------------------------------------*/
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