Zebediah Figura : dbghelp: Read the ELF program header corresponding to the target's architecture.
Alexandre Julliard
julliard at winehq.org
Tue Jun 5 17:06:40 CDT 2018
Module: wine
Branch: master
Commit: bd620ffb443eaa2dba997dc5597cb37c44d757b7
URL: https://source.winehq.org/git/wine.git/?a=commit;h=bd620ffb443eaa2dba997dc5597cb37c44d757b7
Author: Zebediah Figura <zfigura at codeweavers.com>
Date: Mon Jun 4 16:51:30 2018 -0500
dbghelp: Read the ELF program header corresponding to the target's architecture.
Signed-off-by: Zebediah Figura <zfigura at codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard at winehq.org>
---
dlls/dbghelp/elf_module.c | 31 ++++++++++++++++++++++++-------
dlls/dbghelp/image_private.h | 2 --
2 files changed, 24 insertions(+), 9 deletions(-)
diff --git a/dlls/dbghelp/elf_module.c b/dlls/dbghelp/elf_module.c
index 8049210..f84df83 100644
--- a/dlls/dbghelp/elf_module.c
+++ b/dlls/dbghelp/elf_module.c
@@ -332,7 +332,6 @@ static BOOL elf_map_file(struct elf_map_file_data* emfd, struct image_file_map*
static const BYTE elf_signature[4] = { ELFMAG0, ELFMAG1, ELFMAG2, ELFMAG3 };
struct stat statbuf;
unsigned int i;
- Elf_Phdr phdr;
size_t tmp, page_mask = sysconf( _SC_PAGESIZE ) - 1;
char* filename;
unsigned len;
@@ -429,13 +428,31 @@ static BOOL elf_map_file(struct elf_map_file_data* emfd, struct image_file_map*
fmap->u.elf.elf_start = ~0L;
for (i = 0; i < fmap->u.elf.elfhdr.e_phnum; i++)
{
- if (elf_map_file_read(fmap, emfd, &phdr, sizeof(phdr),
- fmap->u.elf.elfhdr.e_phoff + i * sizeof(phdr)) &&
- phdr.p_type == PT_LOAD)
+ if (fmap->addr_size == 32)
{
- tmp = (phdr.p_vaddr + phdr.p_memsz + page_mask) & ~page_mask;
- if (fmap->u.elf.elf_size < tmp) fmap->u.elf.elf_size = tmp;
- if (phdr.p_vaddr < fmap->u.elf.elf_start) fmap->u.elf.elf_start = phdr.p_vaddr;
+ Elf32_Phdr phdr;
+
+ if (elf_map_file_read(fmap, emfd, &phdr, sizeof(phdr),
+ fmap->u.elf.elfhdr.e_phoff + i * sizeof(phdr)) &&
+ phdr.p_type == PT_LOAD)
+ {
+ tmp = (phdr.p_vaddr + phdr.p_memsz + page_mask) & ~page_mask;
+ if (fmap->u.elf.elf_size < tmp) fmap->u.elf.elf_size = tmp;
+ if (phdr.p_vaddr < fmap->u.elf.elf_start) fmap->u.elf.elf_start = phdr.p_vaddr;
+ }
+ }
+ else
+ {
+ Elf64_Phdr phdr;
+
+ if (elf_map_file_read(fmap, emfd, &phdr, sizeof(phdr),
+ fmap->u.elf.elfhdr.e_phoff + i * sizeof(phdr)) &&
+ phdr.p_type == PT_LOAD)
+ {
+ tmp = (phdr.p_vaddr + phdr.p_memsz + page_mask) & ~page_mask;
+ if (fmap->u.elf.elf_size < tmp) fmap->u.elf.elf_size = tmp;
+ if (phdr.p_vaddr < fmap->u.elf.elf_start) fmap->u.elf.elf_start = phdr.p_vaddr;
+ }
}
}
/* if non relocatable ELF, then remove fixed address from computation
diff --git a/dlls/dbghelp/image_private.h b/dlls/dbghelp/image_private.h
index 42781e4..3951464 100644
--- a/dlls/dbghelp/image_private.h
+++ b/dlls/dbghelp/image_private.h
@@ -59,12 +59,10 @@ typedef struct section macho_section;
#ifdef __ELF__
#ifdef _WIN64
-#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_Phdr Elf32_Phdr
#define Elf_Dyn Elf32_Dyn
#define Elf_Sym Elf32_Sym
#define Elf_auxv_t Elf32_auxv_t
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