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dbghelp: Implement the image_private.h functions for Mach-O modules.

This commit is contained in:
Ken Thomases 2015-06-24 17:17:47 -05:00 committed by Alexandre Julliard
parent 729b53fb9e
commit 0bfa11455c
2 changed files with 177 additions and 38 deletions
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13
dlls/dbghelp/image_private.h
View File

@ -123,6 +123,7 @@ struct image_file_map
struct
{
const macho_section* section;
const char* mapped;
}* sect;
#endif
} macho;
@ -155,6 +156,13 @@ extern void elf_unmap_section(struct image_section_map* ism) DECLSPEC_HI
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;
@ -168,6 +176,7 @@ static inline BOOL image_find_section(struct image_file_map* fmap, const char* n
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;
}
@ -179,6 +188,7 @@ static inline const char* image_map_section(struct image_section_map* ism)
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;
}
@ -190,6 +200,7 @@ static inline void image_unmap_section(struct image_section_map* ism)
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;
}
@ -201,6 +212,7 @@ static inline DWORD_PTR image_get_map_rva(const struct image_section_map* ism)
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;
}
@ -212,6 +224,7 @@ static inline unsigned image_get_map_size(const struct image_section_map* ism)
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;
}

178
dlls/dbghelp/macho_module.c
View File

@ -24,12 +24,6 @@
#include "config.h"
#include "wine/port.h"
#include "ntstatus.h"
#define WIN32_NO_STATUS
#include "dbghelp_private.h"
#ifdef HAVE_MACH_O_LOADER_H
#include <assert.h>
#include <stdarg.h>
#include <errno.h>
@ -40,6 +34,16 @@
# include <sys/mman.h>
#endif
#include "ntstatus.h"
#define WIN32_NO_STATUS
#include "dbghelp_private.h"
#include "winternl.h"
#include "wine/library.h"
#include "wine/debug.h"
#include "image_private.h"
#ifdef HAVE_MACH_O_LOADER_H
#include <mach-o/fat.h>
#include <mach-o/loader.h>
#include <mach-o/nlist.h>
@ -62,11 +66,6 @@ struct dyld_all_image_infos {
};
#endif
#include "winternl.h"
#include "wine/library.h"
#include "wine/debug.h"
#include "image_private.h"
#ifdef WORDS_BIGENDIAN
#define swap_ulong_be_to_host(n) (n)
#else
@ -146,7 +145,8 @@ static void macho_calc_range(const struct macho_file_map* fmap, unsigned long of
*
* Maps a range (offset, length in bytes) from a Mach-O file into memory
*/
static const char* macho_map_range(const struct macho_file_map* fmap, unsigned long offset, unsigned long len)
static const char* macho_map_range(const struct macho_file_map* fmap, unsigned long offset, unsigned long len,
const char** base)
{
unsigned long misalign, aligned_offset, aligned_map_end, map_size;
const void* aligned_ptr;
@ -161,6 +161,8 @@ static const char* macho_map_range(const struct macho_file_map* fmap, unsigned l
TRACE("Mapped (0x%08lx - 0x%08lx) to %p\n", aligned_offset, aligned_map_end, aligned_ptr);
if (aligned_ptr == MAP_FAILED) return IMAGE_NO_MAP;
if (base)
*base = aligned_ptr;
return (const char*)aligned_ptr + misalign;
}
@ -169,12 +171,12 @@ static const char* macho_map_range(const struct macho_file_map* fmap, unsigned l
*
* Unmaps a range (offset, length in bytes) of a Mach-O file from memory
*/
static void macho_unmap_range(const void** mapped, const struct macho_file_map* fmap,
static void macho_unmap_range(const char** base, const void** mapped, const struct macho_file_map* fmap,
unsigned long offset, unsigned long len)
{
TRACE("(%p, %p/%d, 0x%08lx, 0x%08lx)\n", mapped, fmap, fmap->fd, offset, len);
TRACE("(%p, %p, %p/%d, 0x%08lx, 0x%08lx)\n", base, mapped, fmap, fmap->fd, offset, len);
if (mapped && *mapped != IMAGE_NO_MAP)
if ((mapped && *mapped != IMAGE_NO_MAP) || (base && *base != IMAGE_NO_MAP))
{
unsigned long misalign, aligned_offset, aligned_map_end, map_size;
void* aligned_ptr;
@ -182,11 +184,17 @@ static void macho_unmap_range(const void** mapped, const struct macho_file_map*
macho_calc_range(fmap, offset, len, &aligned_offset, &aligned_map_end,
&map_size, &misalign);
if (mapped)
aligned_ptr = (char*)*mapped - misalign;
else
aligned_ptr = (void*)*base;
if (munmap(aligned_ptr, map_size) < 0)
WARN("Couldn't unmap the range\n");
TRACE("Unmapped (0x%08lx - 0x%08lx) from %p - %p\n", aligned_offset, aligned_map_end, aligned_ptr, (char*)aligned_ptr + map_size);
if (mapped)
*mapped = IMAGE_NO_MAP;
if (base)
*base = IMAGE_NO_MAP;
}
}
@ -213,25 +221,25 @@ static BOOL macho_map_ranges(const struct macho_file_map* fmap,
if (aligned_map_end1 < aligned_offset2 || aligned_map_end2 < aligned_offset1)
{
*mapped1 = macho_map_range(fmap, offset1, len1);
*mapped1 = macho_map_range(fmap, offset1, len1, NULL);
if (*mapped1 != IMAGE_NO_MAP)
{
*mapped2 = macho_map_range(fmap, offset2, len2);
*mapped2 = macho_map_range(fmap, offset2, len2, NULL);
if (*mapped2 == IMAGE_NO_MAP)
macho_unmap_range(mapped1, fmap, offset1, len1);
macho_unmap_range(NULL, mapped1, fmap, offset1, len1);
}
}
else
{
if (offset1 < offset2)
{
*mapped1 = macho_map_range(fmap, offset1, offset2 + len2 - offset1);
*mapped1 = macho_map_range(fmap, offset1, offset2 + len2 - offset1, NULL);
if (*mapped1 != IMAGE_NO_MAP)
*mapped2 = (const char*)*mapped1 + offset2 - offset1;
}
else
{
*mapped2 = macho_map_range(fmap, offset2, offset1 + len1 - offset2);
*mapped2 = macho_map_range(fmap, offset2, offset1 + len1 - offset2, NULL);
if (*mapped2 != IMAGE_NO_MAP)
*mapped1 = (const char*)*mapped2 + offset1 - offset2;
}
@ -265,24 +273,108 @@ static void macho_unmap_ranges(const struct macho_file_map* fmap,
if (aligned_map_end1 < aligned_offset2 || aligned_map_end2 < aligned_offset1)
{
macho_unmap_range(mapped1, fmap, offset1, len1);
macho_unmap_range(mapped2, fmap, offset2, len2);
macho_unmap_range(NULL, mapped1, fmap, offset1, len1);
macho_unmap_range(NULL, mapped2, fmap, offset2, len2);
}
else
{
if (offset1 < offset2)
{
macho_unmap_range(mapped1, fmap, offset1, offset2 + len2 - offset1);
macho_unmap_range(NULL, mapped1, fmap, offset1, offset2 + len2 - offset1);
*mapped2 = IMAGE_NO_MAP;
}
else
{
macho_unmap_range(mapped2, fmap, offset2, offset1 + len1 - offset2);
macho_unmap_range(NULL, mapped2, fmap, offset2, offset1 + len1 - offset2);
*mapped1 = IMAGE_NO_MAP;
}
}
}
/******************************************************************
* macho_find_section
*/
BOOL macho_find_section(struct image_file_map* ifm, const char* segname, const char* sectname, struct image_section_map* ism)
{
struct macho_file_map* fmap;
unsigned i;
char tmp[sizeof(fmap->sect[0].section->sectname)];
/* Other parts of dbghelp use section names like ".eh_frame". Mach-O uses
names like "__eh_frame". Convert those. */
if (sectname[0] == '.')
{
lstrcpynA(tmp, "__", sizeof(tmp));
lstrcpynA(tmp + 2, sectname + 1, sizeof(tmp) - 2);
sectname = tmp;
}
fmap = &ifm->u.macho;
for (i = 0; i < fmap->num_sections; i++)
{
if (strcmp(fmap->sect[i].section->sectname, sectname) == 0 &&
(!segname || strcmp(fmap->sect[i].section->sectname, segname) == 0))
{
ism->fmap = ifm;
ism->sidx = i;
return TRUE;
}
}
ism->fmap = NULL;
ism->sidx = -1;
return FALSE;
}
/******************************************************************
* macho_map_section
*/
const char* macho_map_section(struct image_section_map* ism)
{
struct macho_file_map* fmap = &ism->fmap->u.macho;
assert(ism->fmap->modtype == DMT_MACHO);
if (ism->sidx < 0 || ism->sidx >= ism->fmap->u.macho.num_sections)
return IMAGE_NO_MAP;
return macho_map_range(fmap, fmap->sect[ism->sidx].section->offset, fmap->sect[ism->sidx].section->size,
&fmap->sect[ism->sidx].mapped);
}
/******************************************************************
* macho_unmap_section
*/
void macho_unmap_section(struct image_section_map* ism)
{
struct macho_file_map* fmap = &ism->fmap->u.macho;
if (ism->sidx >= 0 && ism->sidx < fmap->num_sections && fmap->sect[ism->sidx].mapped != IMAGE_NO_MAP)
{
macho_unmap_range(&fmap->sect[ism->sidx].mapped, NULL, fmap, fmap->sect[ism->sidx].section->offset,
fmap->sect[ism->sidx].section->size);
}
}
/******************************************************************
* macho_get_map_rva
*/
DWORD_PTR macho_get_map_rva(const struct image_section_map* ism)
{
if (ism->sidx < 0 || ism->sidx >= ism->fmap->u.macho.num_sections)
return 0;
return ism->fmap->u.macho.sect[ism->sidx].section->addr - ism->fmap->u.macho.segs_start;
}
/******************************************************************
* macho_get_map_size
*/
unsigned macho_get_map_size(const struct image_section_map* ism)
{
if (ism->sidx < 0 || ism->sidx >= ism->fmap->u.macho.num_sections)
return 0;
return ism->fmap->u.macho.sect[ism->sidx].section->size;
}
/******************************************************************
* macho_map_load_commands
*
@ -293,7 +385,7 @@ static const struct load_command* macho_map_load_commands(struct macho_file_map*
if (fmap->load_commands == IMAGE_NO_MAP)
{
fmap->load_commands = (const struct load_command*) macho_map_range(
fmap, sizeof(fmap->mach_header), fmap->mach_header.sizeofcmds);
fmap, sizeof(fmap->mach_header), fmap->mach_header.sizeofcmds, NULL);
TRACE("Mapped load commands: %p\n", fmap->load_commands);
}
@ -310,7 +402,7 @@ static void macho_unmap_load_commands(struct macho_file_map* fmap)
if (fmap->load_commands != IMAGE_NO_MAP)
{
TRACE("Unmapping load commands: %p\n", fmap->load_commands);
macho_unmap_range((const void**)&fmap->load_commands, fmap,
macho_unmap_range(NULL, (const void**)&fmap->load_commands, fmap,
sizeof(fmap->mach_header), fmap->mach_header.sizeofcmds);
}
}
@ -423,6 +515,7 @@ static int macho_load_section_info(struct macho_file_map* fmap, const struct loa
for (i = 0; i < sc->nsects; i++)
{
fmap->sect[*section_index].section = &section[i];
fmap->sect[*section_index].mapped = IMAGE_NO_MAP;
(*section_index)++;
}
@ -556,7 +649,10 @@ static BOOL macho_map_file(const WCHAR* filenameW, struct image_file_map* ifm)
i = 0;
if (macho_enum_load_commands(fmap, TARGET_SEGMENT_COMMAND, macho_load_section_info, &i) < 0)
{
fmap->num_sections = 0;
goto done;
}
fmap->segs_size -= fmap->segs_start;
TRACE("segs_start: 0x%08lx, segs_size: 0x%08lx\n", (unsigned long)fmap->segs_start,
@ -580,6 +676,12 @@ static void macho_unmap_file(struct image_file_map* ifm)
TRACE("(%p/%d)\n", ifm, ifm->u.macho.fd);
if (ifm->u.macho.fd != -1)
{
struct image_section_map ism;
ism.fmap = ifm;
for (ism.sidx = 0; ism.sidx < ifm->u.macho.num_sections; ism.sidx++)
macho_unmap_section(&ism);
HeapFree(GetProcessHeap(), 0, ifm->u.macho.sect);
macho_unmap_load_commands(&ifm->u.macho);
close(ifm->u.macho.fd);
@ -1443,6 +1545,30 @@ struct module* macho_load_module(struct process* pcs, const WCHAR* name, unsign
#else /* HAVE_MACH_O_LOADER_H */
BOOL macho_find_section(struct image_file_map* ifm, const char* segname, const char* sectname, struct image_section_map* ism)
{
return FALSE;
}
const char* macho_map_section(struct image_section_map* ism)
{
return NULL;
}
void macho_unmap_section(struct image_section_map* ism)
{
}
DWORD_PTR macho_get_map_rva(const struct image_section_map* ism)
{
return 0;
}
unsigned macho_get_map_size(const struct image_section_map* ism)
{
return 0;
}
BOOL macho_synchronize_module_list(struct process* pcs)
{
return FALSE;