mirror of
https://github.com/Zenithsiz/ftmemsim-valgrind.git
synced 2026-02-03 18:13:01 +00:00
057f9b7069
expected to be loaded (as expressed in the ELF headers) and where it was actually loaded, and not (as valgrind was doing) the absolute value of the load address for the interpreter. Note that when prelink is not in use the two are normally the same, as the intpreter (like all shared libraries) is normally linked with a zero load address. When prelinked that is no longer true. With that fixed, the hack to patch out AT_BASE to avoid confusing gdb on systems where prelink is in use is no longer needed. Fixes BZ#329612 git-svn-id: svn://svn.valgrind.org/valgrind/trunk@13768
98 lines
4.0 KiB
C
98 lines
4.0 KiB
C
|
|
/*--------------------------------------------------------------------*/
|
|
/*--- User-mode execve. pub_core_ume.h ---*/
|
|
/*--------------------------------------------------------------------*/
|
|
|
|
/*
|
|
This file is part of Valgrind, a dynamic binary instrumentation
|
|
framework.
|
|
|
|
Copyright (C) 2000-2013 Julian Seward
|
|
jseward@acm.org
|
|
|
|
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; either version 2 of the
|
|
License, or (at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful, but
|
|
WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program; if not, write to the Free Software
|
|
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
|
02111-1307, USA.
|
|
|
|
The GNU General Public License is contained in the file COPYING.
|
|
*/
|
|
|
|
#ifndef __PUB_CORE_UME_H
|
|
#define __PUB_CORE_UME_H
|
|
|
|
#include "pub_core_basics.h" // VG_ macro
|
|
|
|
//--------------------------------------------------------------------
|
|
// PURPOSE: This module implements user-mode execve, ie. program loading
|
|
// and exec'ing.
|
|
//--------------------------------------------------------------------
|
|
|
|
/*------------------------------------------------------------*/
|
|
/*--- Loading files ---*/
|
|
/*------------------------------------------------------------*/
|
|
|
|
// Info needed to load and run a program. IN/INOUT/OUT refers to the
|
|
// inputs/outputs of do_exec().
|
|
typedef
|
|
struct {
|
|
const HChar** argv; // IN: the original argv
|
|
|
|
Addr exe_base; // INOUT: lowest (allowed) address of exe
|
|
Addr exe_end; // INOUT: highest (allowed) address
|
|
|
|
#if !defined(VGO_darwin)
|
|
Addr phdr; // OUT: address phdr was mapped at
|
|
Int phnum; // OUT: number of phdrs
|
|
UInt stack_prot; // OUT: stack permissions
|
|
PtrdiffT interp_offset; // OUT: relocation offset for ld.so
|
|
#else
|
|
Addr stack_start; // OUT: address of start of stack segment (hot)
|
|
Addr stack_end; // OUT: address of end of stack segment (cold)
|
|
Addr text; // OUT: address of executable's Mach header
|
|
Bool dynamic; // OUT: False iff executable is static
|
|
char* executable_path; // OUT: path passed to execve()
|
|
#endif
|
|
|
|
Addr entry; // OUT: entrypoint in main executable
|
|
Addr init_ip; // OUT: address of first instruction to execute
|
|
Addr brkbase; // OUT: base address of brk segment
|
|
Addr init_toc; // OUT: address of table-of-contents, on
|
|
// platforms for which that makes sense
|
|
// (ppc64-linux only)
|
|
|
|
// These are the extra args added by #! scripts
|
|
HChar* interp_name; // OUT: the interpreter name
|
|
HChar* interp_args; // OUT: the args for the interpreter
|
|
}
|
|
ExeInfo;
|
|
|
|
// Do a number of appropriate checks to see if the file looks executable by
|
|
// the kernel: ie. it's a file, it's readable and executable, and it's in
|
|
// either binary or "#!" format. On success, 'out_fd' gets the fd of the file
|
|
// if it's non-NULL. Otherwise the fd is closed.
|
|
extern SysRes VG_(pre_exec_check)(const HChar* exe_name, Int* out_fd,
|
|
Bool allow_setuid);
|
|
|
|
// Does everything short of actually running 'exe': finds the file,
|
|
// checks execute permissions, sets up interpreter if program is a script,
|
|
// reads headers, maps file into memory, and returns important info about
|
|
// the program.
|
|
extern Int VG_(do_exec)(const HChar* exe, ExeInfo* info);
|
|
|
|
#endif /* __PUB_CORE_UME_H */
|
|
|
|
/*--------------------------------------------------------------------*/
|
|
/*--- end ---*/
|
|
/*--------------------------------------------------------------------*/
|