mirror of
git://source.winehq.org/git/wine.git
synced 2024-11-01 11:08:45 +00:00
49f0bf6f0b
Images in the shared cache have their segments mapped non-contiguously. We don't know how to find where the non-__TEXT segments actually are. Also, the code assumes that the image is mapped contiguously in various places. So, we just ignore those segments. Treating the non-contiguous segments as though they were contiguous caused their apparent memory ranges to overlap, leading to addresses being attributed to the wrong module, let alone symbol.
234 lines
8 KiB
C
234 lines
8 KiB
C
/*
|
|
* File elf_private.h - definitions for processing of ELF files
|
|
*
|
|
* Copyright (C) 1996, Eric Youngdale.
|
|
* 1999-2007 Eric Pouech
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* This library 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
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
|
|
*/
|
|
|
|
#ifdef HAVE_ELF_H
|
|
# include <elf.h>
|
|
#endif
|
|
#ifdef HAVE_SYS_ELF32_H
|
|
# include <sys/elf32.h>
|
|
#endif
|
|
#ifdef HAVE_SYS_EXEC_ELF_H
|
|
# include <sys/exec_elf.h>
|
|
#endif
|
|
#if !defined(DT_NUM)
|
|
# if defined(DT_COUNT)
|
|
# define DT_NUM DT_COUNT
|
|
# else
|
|
/* this seems to be a satisfactory value on Solaris, which doesn't support this AFAICT */
|
|
# define DT_NUM 24
|
|
# endif
|
|
#endif
|
|
#ifdef HAVE_LINK_H
|
|
# include <link.h>
|
|
#endif
|
|
#ifdef HAVE_SYS_LINK_H
|
|
# include <sys/link.h>
|
|
#endif
|
|
#ifdef HAVE_MACH_O_LOADER_H
|
|
#include <mach-o/loader.h>
|
|
|
|
#ifdef _WIN64
|
|
typedef struct mach_header_64 macho_mach_header;
|
|
typedef struct section_64 macho_section;
|
|
#else
|
|
typedef struct mach_header macho_mach_header;
|
|
typedef struct section macho_section;
|
|
#endif
|
|
#endif
|
|
|
|
#define IMAGE_NO_MAP ((void*)-1)
|
|
|
|
#ifdef __ELF__
|
|
|
|
#ifdef _WIN64
|
|
#define Elf_Ehdr Elf64_Ehdr
|
|
#define Elf_Shdr Elf64_Shdr
|
|
#define Elf_Phdr Elf64_Phdr
|
|
#define Elf_Dyn Elf64_Dyn
|
|
#define Elf_Sym Elf64_Sym
|
|
#define Elf_auxv_t Elf64_auxv_t
|
|
#else
|
|
#define Elf_Ehdr Elf32_Ehdr
|
|
#define Elf_Shdr Elf32_Shdr
|
|
#define Elf_Phdr Elf32_Phdr
|
|
#define Elf_Dyn Elf32_Dyn
|
|
#define Elf_Sym Elf32_Sym
|
|
#define Elf_auxv_t Elf32_auxv_t
|
|
#endif
|
|
#else
|
|
#ifndef SHT_NULL
|
|
#define SHT_NULL 0
|
|
#endif
|
|
#endif
|
|
|
|
/* structure holding information while handling an ELF image
|
|
* allows one by one section mapping for memory savings
|
|
*/
|
|
struct image_file_map
|
|
{
|
|
enum module_type modtype;
|
|
unsigned addr_size; /* either 16 (not used), 32 or 64 */
|
|
union
|
|
{
|
|
struct elf_file_map
|
|
{
|
|
size_t elf_size;
|
|
size_t elf_start;
|
|
int fd;
|
|
const char* shstrtab;
|
|
struct image_file_map* alternate; /* another ELF file (linked to this one) */
|
|
char* target_copy;
|
|
#ifdef __ELF__
|
|
Elf_Ehdr elfhdr;
|
|
struct
|
|
{
|
|
Elf_Shdr shdr;
|
|
const char* mapped;
|
|
}* sect;
|
|
#endif
|
|
} elf;
|
|
struct macho_file_map
|
|
{
|
|
size_t segs_size;
|
|
size_t segs_start;
|
|
int fd;
|
|
struct image_file_map* dsym; /* the debug symbols file associated with this one */
|
|
|
|
#ifdef HAVE_MACH_O_LOADER_H
|
|
macho_mach_header mach_header;
|
|
const struct load_command* load_commands;
|
|
const struct uuid_command* uuid;
|
|
|
|
/* The offset in the file which is this architecture. mach_header was
|
|
* read from arch_offset. */
|
|
unsigned arch_offset;
|
|
|
|
int num_sections;
|
|
struct
|
|
{
|
|
const macho_section* section;
|
|
const char* mapped;
|
|
unsigned int ignored : 1;
|
|
}* sect;
|
|
#endif
|
|
} macho;
|
|
struct pe_file_map
|
|
{
|
|
HANDLE hMap;
|
|
IMAGE_NT_HEADERS ntheader;
|
|
unsigned full_count;
|
|
void* full_map;
|
|
struct
|
|
{
|
|
IMAGE_SECTION_HEADER shdr;
|
|
const char* mapped;
|
|
}* sect;
|
|
const char* strtable;
|
|
} pe;
|
|
} u;
|
|
};
|
|
|
|
struct image_section_map
|
|
{
|
|
struct image_file_map* fmap;
|
|
long sidx;
|
|
};
|
|
|
|
extern BOOL elf_find_section(struct image_file_map* fmap, const char* name,
|
|
unsigned sht, struct image_section_map* ism) DECLSPEC_HIDDEN;
|
|
extern const char* elf_map_section(struct image_section_map* ism) DECLSPEC_HIDDEN;
|
|
extern void elf_unmap_section(struct image_section_map* ism) DECLSPEC_HIDDEN;
|
|
extern DWORD_PTR elf_get_map_rva(const struct image_section_map* ism) DECLSPEC_HIDDEN;
|
|
extern unsigned elf_get_map_size(const struct image_section_map* ism) DECLSPEC_HIDDEN;
|
|
|
|
extern BOOL macho_find_section(struct image_file_map* ifm, const char* segname,
|
|
const char* sectname, struct image_section_map* ism) DECLSPEC_HIDDEN;
|
|
extern const char* macho_map_section(struct image_section_map* ism) DECLSPEC_HIDDEN;
|
|
extern void macho_unmap_section(struct image_section_map* ism) DECLSPEC_HIDDEN;
|
|
extern DWORD_PTR macho_get_map_rva(const struct image_section_map* ism) DECLSPEC_HIDDEN;
|
|
extern unsigned macho_get_map_size(const struct image_section_map* ism) DECLSPEC_HIDDEN;
|
|
|
|
extern BOOL pe_find_section(struct image_file_map* fmap, const char* name,
|
|
struct image_section_map* ism) DECLSPEC_HIDDEN;
|
|
extern const char* pe_map_section(struct image_section_map* psm) DECLSPEC_HIDDEN;
|
|
extern void pe_unmap_section(struct image_section_map* psm) DECLSPEC_HIDDEN;
|
|
extern DWORD_PTR pe_get_map_rva(const struct image_section_map* psm) DECLSPEC_HIDDEN;
|
|
extern unsigned pe_get_map_size(const struct image_section_map* psm) DECLSPEC_HIDDEN;
|
|
|
|
static inline BOOL image_find_section(struct image_file_map* fmap, const char* name,
|
|
struct image_section_map* ism)
|
|
{
|
|
switch (fmap->modtype)
|
|
{
|
|
case DMT_ELF: return elf_find_section(fmap, name, SHT_NULL, ism);
|
|
case DMT_MACHO: return macho_find_section(fmap, NULL, name, ism);
|
|
case DMT_PE: return pe_find_section(fmap, name, ism);
|
|
default: assert(0); return FALSE;
|
|
}
|
|
}
|
|
|
|
static inline const char* image_map_section(struct image_section_map* ism)
|
|
{
|
|
if (!ism->fmap) return NULL;
|
|
switch (ism->fmap->modtype)
|
|
{
|
|
case DMT_ELF: return elf_map_section(ism);
|
|
case DMT_MACHO: return macho_map_section(ism);
|
|
case DMT_PE: return pe_map_section(ism);
|
|
default: assert(0); return NULL;
|
|
}
|
|
}
|
|
|
|
static inline void image_unmap_section(struct image_section_map* ism)
|
|
{
|
|
if (!ism->fmap) return;
|
|
switch (ism->fmap->modtype)
|
|
{
|
|
case DMT_ELF: elf_unmap_section(ism); break;
|
|
case DMT_MACHO: macho_unmap_section(ism); break;
|
|
case DMT_PE: pe_unmap_section(ism); break;
|
|
default: assert(0); return;
|
|
}
|
|
}
|
|
|
|
static inline DWORD_PTR image_get_map_rva(const struct image_section_map* ism)
|
|
{
|
|
if (!ism->fmap) return 0;
|
|
switch (ism->fmap->modtype)
|
|
{
|
|
case DMT_ELF: return elf_get_map_rva(ism);
|
|
case DMT_MACHO: return macho_get_map_rva(ism);
|
|
case DMT_PE: return pe_get_map_rva(ism);
|
|
default: assert(0); return 0;
|
|
}
|
|
}
|
|
|
|
static inline unsigned image_get_map_size(const struct image_section_map* ism)
|
|
{
|
|
if (!ism->fmap) return 0;
|
|
switch (ism->fmap->modtype)
|
|
{
|
|
case DMT_ELF: return elf_get_map_size(ism);
|
|
case DMT_MACHO: return macho_get_map_size(ism);
|
|
case DMT_PE: return pe_get_map_size(ism);
|
|
default: assert(0); return 0;
|
|
}
|
|
}
|