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dbghelp: Read the r_debug and link_map structs corresponding to the target's architecture. 

Signed-off-by: Zebediah Figura <zfigura@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
oldstable
Zebediah Figura 2018-06-04 16:51:34 -05:00 committed by Alexandre Julliard
parent 7e4fd17d5b
commit 99e818154a
1 changed files with 84 additions and 26 deletions
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110
dlls/dbghelp/elf_module.c
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@ -78,6 +78,15 @@ struct r_debug
};
#endif /* HAVE_STRUCT_R_DEBUG */
struct r_debug32
{
int r_version;
DWORD r_map;
Elf32_Addr r_brk;
int r_state;
Elf32_Addr r_ldbase;
};
#ifndef HAVE_STRUCT_LINK_MAP
struct link_map
{
@ -88,6 +97,14 @@ struct link_map
};
#endif /* HAVE_STRUCT_LINK_MAP */
struct link_map32
{
Elf32_Addr l_addr;
DWORD l_name;
DWORD l_ld;
DWORD l_next, l_prev;
};
WINE_DEFAULT_DEBUG_CHANNEL(dbghelp);
struct elf_info
@ -1648,36 +1665,77 @@ static BOOL elf_enum_modules_internal(const struct process* pcs,
const WCHAR* main_name,
enum_elf_modules_cb cb, void* user)
{
struct r_debug dbg_hdr;
void* lm_addr;
struct link_map lm;
char bufstr[256];
WCHAR bufstrW[MAX_PATH];
WCHAR bufstrW[MAX_PATH];
char bufstr[256];
void *lm_addr;
if (!pcs->dbg_hdr_addr ||
!ReadProcessMemory(pcs->handle, (void*)pcs->dbg_hdr_addr,
&dbg_hdr, sizeof(dbg_hdr), NULL))
return FALSE;
/* Now walk the linked list. In all known ELF implementations,
* the dynamic loader maintains this linked list for us. In some
* cases the first entry doesn't appear with a name, in other cases it
* does.
*/
for (lm_addr = (void*)dbg_hdr.r_map; lm_addr; lm_addr = (void*)lm.l_next)
if (pcs->is_64bit)
{
if (!ReadProcessMemory(pcs->handle, lm_addr, &lm, sizeof(lm), NULL))
return FALSE;
struct r_debug dbg_hdr;
struct link_map lm;
if (lm.l_prev != NULL && /* skip first entry, normally debuggee itself */
lm.l_name != NULL &&
ReadProcessMemory(pcs->handle, lm.l_name, bufstr, sizeof(bufstr), NULL))
if (!pcs->dbg_hdr_addr ||
!ReadProcessMemory(pcs->handle, (void*)pcs->dbg_hdr_addr,
&dbg_hdr, sizeof(dbg_hdr), NULL))
return FALSE;
/* Now walk the linked list. In all known ELF implementations,
* the dynamic loader maintains this linked list for us. In some
* cases the first entry doesn't appear with a name, in other cases it
* does.
*/
for (lm_addr = (void*)dbg_hdr.r_map; lm_addr; lm_addr = (void*)lm.l_next)
{
bufstr[sizeof(bufstr) - 1] = '\0';
MultiByteToWideChar(CP_UNIXCP, 0, bufstr, -1, bufstrW, sizeof(bufstrW) / sizeof(WCHAR));
if (main_name && !bufstrW[0]) strcpyW(bufstrW, main_name);
if (!cb(bufstrW, (unsigned long)lm.l_addr, (unsigned long)lm.l_ld, FALSE, user)) break;
}
if (!ReadProcessMemory(pcs->handle, lm_addr, &lm, sizeof(lm), NULL))
return FALSE;
if (lm.l_prev != NULL && /* skip first entry, normally debuggee itself */
lm.l_name != NULL &&
ReadProcessMemory(pcs->handle, lm.l_name, bufstr, sizeof(bufstr), NULL))
{
bufstr[sizeof(bufstr) - 1] = '\0';
MultiByteToWideChar(CP_UNIXCP, 0, bufstr, -1, bufstrW,
sizeof(bufstrW) / sizeof(WCHAR));
if (main_name && !bufstrW[0]) strcpyW(bufstrW, main_name);
if (!cb(bufstrW, (unsigned long)lm.l_addr, (unsigned long)lm.l_ld, FALSE, user))
break;
}
}
}
else
{
struct r_debug32 dbg_hdr;
struct link_map32 lm;
if (!pcs->dbg_hdr_addr ||
!ReadProcessMemory(pcs->handle, (void*)pcs->dbg_hdr_addr,
&dbg_hdr, sizeof(dbg_hdr), NULL))
return FALSE;
/* Now walk the linked list. In all known ELF implementations,
* the dynamic loader maintains this linked list for us. In some
* cases the first entry doesn't appear with a name, in other cases it
* does.
*/
for (lm_addr = (void *)(DWORD_PTR)dbg_hdr.r_map; lm_addr;
lm_addr = (void *)(DWORD_PTR)lm.l_next)
{
if (!ReadProcessMemory(pcs->handle, lm_addr, &lm, sizeof(lm), NULL))
return FALSE;
if (lm.l_prev && /* skip first entry, normally debuggee itself */
lm.l_name &&
ReadProcessMemory(pcs->handle, (void *)(DWORD_PTR)lm.l_name,
bufstr, sizeof(bufstr), NULL))
{
bufstr[sizeof(bufstr) - 1] = '\0';
MultiByteToWideChar(CP_UNIXCP, 0, bufstr, -1, bufstrW,
sizeof(bufstrW) / sizeof(WCHAR));
if (main_name && !bufstrW[0]) strcpyW(bufstrW, main_name);
if (!cb(bufstrW, (unsigned long)lm.l_addr, (unsigned long)lm.l_ld, FALSE, user))
break;
}
}
}
#ifdef AT_SYSINFO_EHDR