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[DBGHELP]

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sync dbghelp with wine 1.1.41

svn path=/trunk/; revision=46325
This commit is contained in:
Christoph von Wittich
2010-03-21 21:08:48 +00:00
parent 3e76f1bac8
commit 2bdad0ba67
8 changed files with 968 additions and 515 deletions
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reactos/dll/win32/dbghelp/dbghelp_private.h
+34 -16
View File
@@ -313,6 +313,36 @@ enum module_type
};
struct process;
struct module;
/* a module can be made of several debug information formats, so we have to
* support them all
*/
enum format_info
{
DFI_ELF,
DFI_PE,
DFI_MACHO,
DFI_DWARF,
DFI_LAST
};
struct module_format
{
struct module* module;
void (*remove)(struct process* pcs, struct module_format* modfmt);
void (*loc_compute)(struct process* pcs,
const struct module_format* modfmt,
const struct symt_function* func,
struct location* loc);
union
{
struct elf_module_info* elf_info;
struct dwarf2_module_info_s* dwarf2_info;
struct pe_module_info* pe_info;
struct macho_module_info* macho_info;
} u;
};
struct module
{
@@ -324,10 +354,7 @@ struct module
unsigned short is_virtual : 1;
/* specific information for debug types */
struct elf_module_info* elf_info;
struct dwarf2_module_info_s*dwarf2_info;
struct macho_module_info* macho_info;
struct module_format* format_info[DFI_LAST];
/* memory allocation pool */
struct pool pool;
@@ -340,10 +367,6 @@ struct module
unsigned sorttab_size;
struct symt_ht** addr_sorttab;
struct hash_table ht_symbols;
void (*loc_compute)(struct process* pcs,
const struct module* module,
const struct symt_function* func,
struct location* loc);
/* types */
struct hash_table ht_types;
@@ -471,11 +494,10 @@ extern DWORD calc_crc32(int fd);
typedef BOOL (*enum_modules_cb)(const WCHAR*, unsigned long addr, void* user);
/* elf_module.c */
#define ELF_NO_MAP ((const void*)-1)
extern BOOL elf_enum_modules(HANDLE hProc, enum_modules_cb, void*);
extern BOOL elf_fetch_file_info(const WCHAR* name, DWORD* base, DWORD* size, DWORD* checksum);
struct elf_file_map;
extern BOOL elf_load_debug_info(struct module* module, struct elf_file_map* fmap);
struct image_file_map;
extern BOOL elf_load_debug_info(struct module* module, struct image_file_map* fmap);
extern struct module*
elf_load_module(struct process* pcs, const WCHAR* name, unsigned long);
extern BOOL elf_read_wine_loader_dbg_info(struct process* pcs);
@@ -565,11 +587,7 @@ extern BOOL stabs_parse(struct module* module, unsigned long load_offset
/* dwarf.c */
extern BOOL dwarf2_parse(struct module* module, unsigned long load_offset,
const struct elf_thunk_area* thunks,
const unsigned char* debug, unsigned int debug_size,
const unsigned char* abbrev, unsigned int abbrev_size,
const unsigned char* str, unsigned int str_size,
const unsigned char* line, unsigned int line_size,
const unsigned char* loclist, unsigned int loclist_size);
struct image_file_map* fmap);
/* stack.c */
extern BOOL sw_read_mem(struct cpu_stack_walk* csw, DWORD64 addr, void* ptr, DWORD sz);
reactos/dll/win32/dbghelp/dwarf.c
+113 -53
View File
@@ -51,6 +51,7 @@
#include "oleauto.h"
#include "dbghelp_private.h"
#include "image_private.h"
#include "wine/debug.h"
@@ -139,6 +140,7 @@ struct attribute
union
{
unsigned long uvalue;
ULONGLONG lluvalue;
long svalue;
const char* string;
struct dwarf2_block block;
@@ -157,6 +159,7 @@ typedef struct dwarf2_section_s
{
const unsigned char* address;
unsigned size;
DWORD_PTR rva;
} dwarf2_section_t;
enum dwarf2_sections {section_debug, section_string, section_abbrev, section_line, section_max};
@@ -512,9 +515,8 @@ static void dwarf2_fill_attr(const dwarf2_parse_context_t* ctx,
break;
case DW_FORM_data8:
attr->u.block.size = 8;
attr->u.block.ptr = data;
data += 8;
attr->u.lluvalue = dwarf2_get_u8(data);
TRACE("data8<%s>\n", wine_dbgstr_longlong(attr->u.uvalue));
break;
case DW_FORM_ref1:
@@ -1480,6 +1482,11 @@ static void dwarf2_parse_variable(dwarf2_subprogram_t* subpgm,
v.n1.n2.n3.lVal = value.u.uvalue;
break;
case DW_FORM_data8:
v.n1.n2.vt = VT_UI8;
v.n1.n2.n3.llVal = value.u.lluvalue;
break;
case DW_FORM_sdata:
v.n1.n2.vt = VT_I4;
v.n1.n2.n3.lVal = value.u.svalue;
@@ -1511,12 +1518,6 @@ static void dwarf2_parse_variable(dwarf2_subprogram_t* subpgm,
}
break;
case DW_FORM_data8:
v.n1.n2.vt = VT_I1 | VT_BYREF;
v.n1.n2.n3.byref = pool_alloc(&subpgm->ctx->module->pool, value.u.block.size);
memcpy(v.n1.n2.n3.byref, value.u.block.ptr, value.u.block.size);
break;
default:
FIXME("Unsupported form for const value %s (%lx)\n",
name.u.string, value.form);
@@ -1952,7 +1953,7 @@ static BOOL dwarf2_parse_line_numbers(const dwarf2_section_t* sections,
const char** p;
/* section with line numbers stripped */
if (sections[section_line].address == ELF_NO_MAP)
if (sections[section_line].address == IMAGE_NO_MAP)
return FALSE;
traverse.data = sections[section_line].address + offset;
@@ -2211,7 +2212,7 @@ static BOOL dwarf2_parse_compilation_unit(const dwarf2_section_t* sections,
return ret;
}
static BOOL dwarf2_lookup_loclist(const struct module* module, const BYTE* start,
static BOOL dwarf2_lookup_loclist(const struct module_format* modfmt, const BYTE* start,
unsigned long ip,
dwarf2_traverse_context_t* lctx)
{
@@ -2219,7 +2220,7 @@ static BOOL dwarf2_lookup_loclist(const struct module* module, const BYTE* start
const BYTE* ptr = start;
DWORD len;
while (ptr < module->dwarf2_info->debug_loc.address + module->dwarf2_info->debug_loc.size)
while (ptr < modfmt->u.dwarf2_info->debug_loc.address + modfmt->u.dwarf2_info->debug_loc.size)
{
beg = dwarf2_get_u4(ptr); ptr += 4;
end = dwarf2_get_u4(ptr); ptr += 4;
@@ -2240,7 +2241,7 @@ static BOOL dwarf2_lookup_loclist(const struct module* module, const BYTE* start
}
static enum location_error loc_compute_frame(struct process* pcs,
const struct module* module,
const struct module_format* modfmt,
const struct symt_function* func,
DWORD ip, struct location* frame)
{
@@ -2266,8 +2267,8 @@ static enum location_error loc_compute_frame(struct process* pcs,
break;
case loc_dwarf2_location_list:
WARN("Searching loclist for %s\n", func->hash_elt.name);
if (!dwarf2_lookup_loclist(module,
module->dwarf2_info->debug_loc.address + pframe->offset,
if (!dwarf2_lookup_loclist(modfmt,
modfmt->u.dwarf2_info->debug_loc.address + pframe->offset,
ip, &lctx))
return loc_err_out_of_scope;
if ((err = compute_location(&lctx, frame, pcs->handle, NULL)) < 0) return err;
@@ -2289,7 +2290,7 @@ static enum location_error loc_compute_frame(struct process* pcs,
}
static void dwarf2_location_compute(struct process* pcs,
const struct module* module,
const struct module_format* modfmt,
const struct symt_function* func,
struct location* loc)
{
@@ -2308,14 +2309,14 @@ static void dwarf2_location_compute(struct process* pcs,
/* instruction pointer relative to compiland's start */
ip = pcs->ctx_frame.InstructionOffset - ((struct symt_compiland*)func->container)->address;
if ((err = loc_compute_frame(pcs, module, func, ip, &frame)) == 0)
if ((err = loc_compute_frame(pcs, modfmt, func, ip, &frame)) == 0)
{
switch (loc->kind)
{
case loc_dwarf2_location_list:
/* Then, if the variable has a location list, find it !! */
if (dwarf2_lookup_loclist(module,
module->dwarf2_info->debug_loc.address + loc->offset,
if (dwarf2_lookup_loclist(modfmt,
modfmt->u.dwarf2_info->debug_loc.address + loc->offset,
ip, &lctx))
goto do_compute;
err = loc_err_out_of_scope;
@@ -2350,56 +2351,115 @@ static void dwarf2_location_compute(struct process* pcs,
}
}
static void dwarf2_module_remove(struct process* pcs, struct module_format* modfmt)
{
HeapFree(GetProcessHeap(), 0, modfmt->u.dwarf2_info);
HeapFree(GetProcessHeap(), 0, modfmt);
}
static inline BOOL dwarf2_init_section(dwarf2_section_t* section, struct image_file_map* fmap,
const char* sectname, struct image_section_map* ism)
{
struct image_section_map local_ism;
if (!ism) ism = &local_ism;
if (!image_find_section(fmap, sectname, ism))
{
section->address = NULL;
section->size = 0;
section->rva = 0;
return FALSE;
}
section->address = (const BYTE*)image_map_section(ism);
section->size = image_get_map_size(ism);
section->rva = image_get_map_rva(ism);
return TRUE;
}
BOOL dwarf2_parse(struct module* module, unsigned long load_offset,
const struct elf_thunk_area* thunks,
const unsigned char* debug, unsigned int debug_size,
const unsigned char* abbrev, unsigned int abbrev_size,
const unsigned char* str, unsigned int str_size,
const unsigned char* line, unsigned int line_size,
const unsigned char* loclist, unsigned int loclist_size)
struct image_file_map* fmap)
{
dwarf2_section_t section[section_max];
unsigned char* ptr;
dwarf2_traverse_context_t mod_ctx;
struct image_section_map debug_sect, debug_str_sect, debug_abbrev_sect,
debug_line_sect, debug_loclist_sect;
BOOL ret = TRUE;
struct module_format* dwarf2_modfmt;
mod_ctx.start_data = mod_ctx.data = debug;
mod_ctx.end_data = debug + debug_size;
if (!dwarf2_init_section(&section[section_debug], fmap, ".debug_info", &debug_sect))
{
/* no Dwarf debug info here, so there's no error */
return TRUE;
}
dwarf2_init_section(&section[section_abbrev], fmap, ".debug_abbrev", &debug_abbrev_sect);
dwarf2_init_section(&section[section_string], fmap, ".debug_str", &debug_str_sect);
dwarf2_init_section(&section[section_line], fmap, ".debug_line", &debug_line_sect);
module->loc_compute = dwarf2_location_compute;
if (section[section_debug].address == IMAGE_NO_MAP ||
section[section_abbrev].address == IMAGE_NO_MAP ||
section[section_string].address == IMAGE_NO_MAP)
{
ret = FALSE;
goto leave;
}
section[section_debug].address = debug;
section[section_debug].size = debug_size;
section[section_abbrev].address = abbrev;
section[section_abbrev].size = abbrev_size;
section[section_string].address = str;
section[section_string].size = str_size;
section[section_line].address = line;
section[section_line].size = line_size;
if (fmap->modtype == DMT_ELF)
{
/* debug info might have a different base address than .so file
* when elf file is prelinked after splitting off debug info
* adjust symbol base addresses accordingly
*/
load_offset += fmap->u.elf.elf_start - debug_sect.fmap->u.elf.elf_start;
}
if (loclist_size)
TRACE("Loading Dwarf2 information for %s\n", debugstr_w(module->module.ModuleName));
mod_ctx.start_data = mod_ctx.data = section[section_debug].address;
mod_ctx.end_data = mod_ctx.data + section[section_debug].size;
dwarf2_modfmt = HeapAlloc(GetProcessHeap(), 0, sizeof(*dwarf2_modfmt));
if (!dwarf2_modfmt) return FALSE;
dwarf2_modfmt->module = module;
dwarf2_modfmt->remove = dwarf2_module_remove;
dwarf2_modfmt->loc_compute = dwarf2_location_compute;
dwarf2_modfmt->u.dwarf2_info = NULL;
dwarf2_modfmt->module->format_info[DFI_DWARF] = dwarf2_modfmt;
image_find_section(fmap, ".debug_loc", &debug_loclist_sect);
if (image_get_map_size(&debug_loclist_sect))
{
/* initialize the dwarf2 specific info block for this module.
* As we'll need later on the .debug_loc section content, we copy it in
* the module structure for later reuse
* As we'll need later the .debug_loc section content, we won't unmap this
* section upon existing this function
*/
module->dwarf2_info = HeapAlloc(GetProcessHeap(), 0, sizeof(*module->dwarf2_info) + loclist_size);
if (!module->dwarf2_info) return FALSE;
ptr = (unsigned char*)(module->dwarf2_info + 1);
memcpy(ptr, loclist, loclist_size);
module->dwarf2_info->debug_loc.address = ptr;
module->dwarf2_info->debug_loc.size = loclist_size;
dwarf2_modfmt->u.dwarf2_info = HeapAlloc(GetProcessHeap(), 0,
sizeof(*dwarf2_modfmt->u.dwarf2_info));
if (!dwarf2_modfmt->u.dwarf2_info) goto leave;
dwarf2_modfmt->u.dwarf2_info->debug_loc.address = (const BYTE*)image_map_section(&debug_loclist_sect);
dwarf2_modfmt->u.dwarf2_info->debug_loc.size = image_get_map_size(&debug_loclist_sect);
}
else image_unmap_section(&debug_loclist_sect);
while (mod_ctx.data < mod_ctx.end_data)
{
dwarf2_parse_compilation_unit(section, module, thunks, &mod_ctx, load_offset);
dwarf2_parse_compilation_unit(section, dwarf2_modfmt->module, thunks, &mod_ctx, load_offset);
}
module->module.SymType = SymDia;
module->module.CVSig = 'D' | ('W' << 8) | ('A' << 16) | ('R' << 24);
dwarf2_modfmt->module->module.SymType = SymDia;
dwarf2_modfmt->module->module.CVSig = 'D' | ('W' << 8) | ('A' << 16) | ('R' << 24);
/* FIXME: we could have a finer grain here */
module->module.GlobalSymbols = TRUE;
module->module.TypeInfo = TRUE;
module->module.SourceIndexed = TRUE;
module->module.Publics = TRUE;
return TRUE;
dwarf2_modfmt->module->module.GlobalSymbols = TRUE;
dwarf2_modfmt->module->module.TypeInfo = TRUE;
dwarf2_modfmt->module->module.SourceIndexed = TRUE;
dwarf2_modfmt->module->module.Publics = TRUE;
leave:
image_unmap_section(&debug_sect);
image_unmap_section(&debug_abbrev_sect);
image_unmap_section(&debug_str_sect);
image_unmap_section(&debug_line_sect);
return ret;
}
reactos/dll/win32/dbghelp/elf_module.c
+248 -273
View File
@@ -48,40 +48,11 @@
#include "dbghelp_private.h"
#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
#include "image_private.h"
#include "wine/library.h"
#include "wine/debug.h"
struct elf_module_info
{
DWORD_PTR elf_addr;
unsigned short elf_mark : 1,
elf_loader : 1;
};
#ifdef __ELF__
#define ELF_INFO_DEBUG_HEADER 0x0001
@@ -98,44 +69,6 @@ struct elf_info
const WCHAR* module_name; /* OUT found module name (if ELF_INFO_NAME is set) */
};
#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
#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
#endif
/* structure holding information while handling an ELF image
* allows one by one section mapping for memory savings
*/
struct elf_file_map
{
Elf_Ehdr elfhdr;
size_t elf_size;
size_t elf_start;
struct
{
Elf_Shdr shdr;
const char* mapped;
}* sect;
int fd;
const char* shstrtab;
struct elf_file_map* alternate; /* another ELF file (linked to this one) */
};
struct elf_section_map
{
struct elf_file_map* fmap;
long sidx;
};
struct symtab_elt
{
struct hash_table_elt ht_elt;
@@ -152,28 +85,39 @@ struct elf_thunk_area
unsigned long rva_end;
};
struct elf_module_info
{
unsigned long elf_addr;
unsigned short elf_mark : 1,
elf_loader : 1;
struct image_file_map file_map;
};
/******************************************************************
* elf_map_section
*
* Maps a single section into memory from an ELF file
*/
static const char* elf_map_section(struct elf_section_map* esm)
const char* elf_map_section(struct image_section_map* ism)
{
struct elf_file_map* fmap = &ism->fmap->u.elf;
unsigned pgsz = getpagesize();
unsigned ofst, size;
if (esm->sidx < 0 || esm->sidx >= esm->fmap->elfhdr.e_shnum ||
esm->fmap->sect[esm->sidx].shdr.sh_type == SHT_NOBITS)
return ELF_NO_MAP;
assert(ism->fmap->modtype == DMT_ELF);
if (ism->sidx < 0 || ism->sidx >= ism->fmap->u.elf.elfhdr.e_shnum ||
fmap->sect[ism->sidx].shdr.sh_type == SHT_NOBITS)
return IMAGE_NO_MAP;
/* align required information on page size (we assume pagesize is a power of 2) */
ofst = esm->fmap->sect[esm->sidx].shdr.sh_offset & ~(pgsz - 1);
size = ((esm->fmap->sect[esm->sidx].shdr.sh_offset +
esm->fmap->sect[esm->sidx].shdr.sh_size + pgsz - 1) & ~(pgsz - 1)) - ofst;
esm->fmap->sect[esm->sidx].mapped = mmap(NULL, size, PROT_READ, MAP_PRIVATE,
esm->fmap->fd, ofst);
if (esm->fmap->sect[esm->sidx].mapped == ELF_NO_MAP) return ELF_NO_MAP;
return esm->fmap->sect[esm->sidx].mapped + (esm->fmap->sect[esm->sidx].shdr.sh_offset & (pgsz - 1));
ofst = fmap->sect[ism->sidx].shdr.sh_offset & ~(pgsz - 1);
size = ((fmap->sect[ism->sidx].shdr.sh_offset +
fmap->sect[ism->sidx].shdr.sh_size + pgsz - 1) & ~(pgsz - 1)) - ofst;
fmap->sect[ism->sidx].mapped = mmap(NULL, size, PROT_READ, MAP_PRIVATE,
fmap->fd, ofst);
if (fmap->sect[ism->sidx].mapped == IMAGE_NO_MAP) return IMAGE_NO_MAP;
return fmap->sect[ism->sidx].mapped + (fmap->sect[ism->sidx].shdr.sh_offset & (pgsz - 1));
}
/******************************************************************
@@ -182,32 +126,34 @@ static const char* elf_map_section(struct elf_section_map* esm)
* Finds a section by name (and type) into memory from an ELF file
* or its alternate if any
*/
static BOOL elf_find_section(struct elf_file_map* fmap, const char* name,
unsigned sht, struct elf_section_map* esm)
BOOL elf_find_section(struct image_file_map* _fmap, const char* name,
unsigned sht, struct image_section_map* ism)
{
struct elf_file_map* fmap;
unsigned i;
while (fmap)
while (_fmap)
{
if (fmap->shstrtab == ELF_NO_MAP)
fmap = &_fmap->u.elf;
if (fmap->shstrtab == IMAGE_NO_MAP)
{
struct elf_section_map hdr_esm = {fmap, fmap->elfhdr.e_shstrndx};
if ((fmap->shstrtab = elf_map_section(&hdr_esm)) == ELF_NO_MAP) break;
struct image_section_map hdr_ism = {_fmap, fmap->elfhdr.e_shstrndx};
if ((fmap->shstrtab = elf_map_section(&hdr_ism)) == IMAGE_NO_MAP) break;
}
for (i = 0; i < fmap->elfhdr.e_shnum; i++)
{
if (strcmp(fmap->shstrtab + fmap->sect[i].shdr.sh_name, name) == 0 &&
(sht == SHT_NULL || sht == fmap->sect[i].shdr.sh_type))
{
esm->fmap = fmap;
esm->sidx = i;
ism->fmap = _fmap;
ism->sidx = i;
return TRUE;
}
}
fmap = fmap->alternate;
_fmap = fmap->alternate;
}
esm->fmap = NULL;
esm->sidx = -1;
ism->fmap = NULL;
ism->sidx = -1;
return FALSE;
}
@@ -216,46 +162,67 @@ static BOOL elf_find_section(struct elf_file_map* fmap, const char* name,
*
* Unmaps a single section from memory
*/
static void elf_unmap_section(struct elf_section_map* esm)
void elf_unmap_section(struct image_section_map* ism)
{
if (esm->sidx >= 0 && esm->sidx < esm->fmap->elfhdr.e_shnum && esm->fmap->sect[esm->sidx].mapped != ELF_NO_MAP)
struct elf_file_map* fmap = &ism->fmap->u.elf;
if (ism->sidx >= 0 && ism->sidx < fmap->elfhdr.e_shnum && fmap->sect[ism->sidx].mapped != IMAGE_NO_MAP)
{
unsigned pgsz = getpagesize();
unsigned ofst, size;
ofst = esm->fmap->sect[esm->sidx].shdr.sh_offset & ~(pgsz - 1);
size = ((esm->fmap->sect[esm->sidx].shdr.sh_offset +
esm->fmap->sect[esm->sidx].shdr.sh_size + pgsz - 1) & ~(pgsz - 1)) - ofst;
if (munmap((char*)esm->fmap->sect[esm->sidx].mapped, size) < 0)
ofst = fmap->sect[ism->sidx].shdr.sh_offset & ~(pgsz - 1);
size = ((fmap->sect[ism->sidx].shdr.sh_offset +
fmap->sect[ism->sidx].shdr.sh_size + pgsz - 1) & ~(pgsz - 1)) - ofst;
if (munmap((char*)fmap->sect[ism->sidx].mapped, size) < 0)
WARN("Couldn't unmap the section\n");
esm->fmap->sect[esm->sidx].mapped = ELF_NO_MAP;
fmap->sect[ism->sidx].mapped = IMAGE_NO_MAP;
}
}
static void elf_end_find(struct elf_file_map* fmap)
static void elf_end_find(struct image_file_map* fmap)
{
struct elf_section_map esm;
struct image_section_map ism;
while (fmap)
{
esm.fmap = fmap;
esm.sidx = fmap->elfhdr.e_shstrndx;
elf_unmap_section(&esm);
fmap->shstrtab = ELF_NO_MAP;
fmap = fmap->alternate;
ism.fmap = fmap;
ism.sidx = fmap->u.elf.elfhdr.e_shstrndx;
elf_unmap_section(&ism);
fmap->u.elf.shstrtab = IMAGE_NO_MAP;
fmap = fmap->u.elf.alternate;
}
}
/******************************************************************
* elf_get_map_rva
*
* Get the RVA of an ELF section
*/
DWORD_PTR elf_get_map_rva(const struct image_section_map* ism)
{
if (ism->sidx < 0 || ism->sidx >= ism->fmap->u.elf.elfhdr.e_shnum)
return 0;
return ism->fmap->u.elf.sect[ism->sidx].shdr.sh_addr - ism->fmap->u.elf.elf_start;
}
/******************************************************************
* elf_get_map_size
*
* Get the size of an ELF section
*/
static inline unsigned elf_get_map_size(const struct elf_section_map* esm)
unsigned elf_get_map_size(const struct image_section_map* ism)
{
if (esm->sidx < 0 || esm->sidx >= esm->fmap->elfhdr.e_shnum)
if (ism->sidx < 0 || ism->sidx >= ism->fmap->u.elf.elfhdr.e_shnum)
return 0;
return esm->fmap->sect[esm->sidx].shdr.sh_size;
return ism->fmap->u.elf.sect[ism->sidx].shdr.sh_size;
}
static inline void elf_reset_file_map(struct image_file_map* fmap)
{
fmap->u.elf.fd = -1;
fmap->u.elf.shstrtab = IMAGE_NO_MAP;
fmap->u.elf.alternate = NULL;
}
/******************************************************************
@@ -263,7 +230,7 @@ static inline unsigned elf_get_map_size(const struct elf_section_map* esm)
*
* Maps an ELF file into memory (and checks it's a real ELF file)
*/
static BOOL elf_map_file(const WCHAR* filenameW, struct elf_file_map* fmap)
static BOOL elf_map_file(const WCHAR* filenameW, struct image_file_map* fmap)
{
static const BYTE elf_signature[4] = { ELFMAG0, ELFMAG1, ELFMAG2, ELFMAG3 };
struct stat statbuf;
@@ -278,56 +245,55 @@ static BOOL elf_map_file(const WCHAR* filenameW, struct elf_file_map* fmap)
if (!(filename = HeapAlloc(GetProcessHeap(), 0, len))) return FALSE;
WideCharToMultiByte(CP_UNIXCP, 0, filenameW, -1, filename, len, NULL, NULL);
fmap->fd = -1;
fmap->shstrtab = ELF_NO_MAP;
fmap->alternate = NULL;
elf_reset_file_map(fmap);
fmap->modtype = DMT_ELF;
/* check that the file exists, and that the module hasn't been loaded yet */
if (stat(filename, &statbuf) == -1 || S_ISDIR(statbuf.st_mode)) goto done;
/* Now open the file, so that we can mmap() it. */
if ((fmap->fd = open(filename, O_RDONLY)) == -1) goto done;
if ((fmap->u.elf.fd = open(filename, O_RDONLY)) == -1) goto done;
if (read(fmap->fd, &fmap->elfhdr, sizeof(fmap->elfhdr)) != sizeof(fmap->elfhdr))
if (read(fmap->u.elf.fd, &fmap->u.elf.elfhdr, sizeof(fmap->u.elf.elfhdr)) != sizeof(fmap->u.elf.elfhdr))
goto done;
/* and check for an ELF header */
if (memcmp(fmap->elfhdr.e_ident,
if (memcmp(fmap->u.elf.elfhdr.e_ident,
elf_signature, sizeof(elf_signature))) goto done;
/* and check 32 vs 64 size according to current machine */
#ifdef _WIN64
if (fmap->elfhdr.e_ident[EI_CLASS] != ELFCLASS64) goto done;
if (fmap->u.elf.elfhdr.e_ident[EI_CLASS] != ELFCLASS64) goto done;
#else
if (fmap->elfhdr.e_ident[EI_CLASS] != ELFCLASS32) goto done;
if (fmap->u.elf.elfhdr.e_ident[EI_CLASS] != ELFCLASS32) goto done;
#endif
fmap->sect = HeapAlloc(GetProcessHeap(), 0,
fmap->elfhdr.e_shnum * sizeof(fmap->sect[0]));
if (!fmap->sect) goto done;
fmap->u.elf.sect = HeapAlloc(GetProcessHeap(), 0,
fmap->u.elf.elfhdr.e_shnum * sizeof(fmap->u.elf.sect[0]));
if (!fmap->u.elf.sect) goto done;
lseek(fmap->fd, fmap->elfhdr.e_shoff, SEEK_SET);
for (i = 0; i < fmap->elfhdr.e_shnum; i++)
lseek(fmap->u.elf.fd, fmap->u.elf.elfhdr.e_shoff, SEEK_SET);
for (i = 0; i < fmap->u.elf.elfhdr.e_shnum; i++)
{
read(fmap->fd, &fmap->sect[i].shdr, sizeof(fmap->sect[i].shdr));
fmap->sect[i].mapped = ELF_NO_MAP;
read(fmap->u.elf.fd, &fmap->u.elf.sect[i].shdr, sizeof(fmap->u.elf.sect[i].shdr));
fmap->u.elf.sect[i].mapped = IMAGE_NO_MAP;
}
/* grab size of module once loaded in memory */
lseek(fmap->fd, fmap->elfhdr.e_phoff, SEEK_SET);
fmap->elf_size = 0;
fmap->elf_start = ~0L;
for (i = 0; i < fmap->elfhdr.e_phnum; i++)
lseek(fmap->u.elf.fd, fmap->u.elf.elfhdr.e_phoff, SEEK_SET);
fmap->u.elf.elf_size = 0;
fmap->u.elf.elf_start = ~0L;
for (i = 0; i < fmap->u.elf.elfhdr.e_phnum; i++)
{
if (read(fmap->fd, &phdr, sizeof(phdr)) == sizeof(phdr) &&
if (read(fmap->u.elf.fd, &phdr, sizeof(phdr)) == sizeof(phdr) &&
phdr.p_type == PT_LOAD)
{
tmp = (phdr.p_vaddr + phdr.p_memsz + page_mask) & ~page_mask;
if (fmap->elf_size < tmp) fmap->elf_size = tmp;
if (phdr.p_vaddr < fmap->elf_start) fmap->elf_start = phdr.p_vaddr;
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
* otherwise, all addresses are zero based and start has no effect
*/
fmap->elf_size -= fmap->elf_start;
fmap->u.elf.elf_size -= fmap->u.elf.elf_start;
ret = TRUE;
done:
HeapFree(GetProcessHeap(), 0, filename);
@@ -339,25 +305,31 @@ done:
*
* Unmaps an ELF file from memory (previously mapped with elf_map_file)
*/
static void elf_unmap_file(struct elf_file_map* fmap)
static void elf_unmap_file(struct image_file_map* fmap)
{
while (fmap)
{
if (fmap->fd != -1)
if (fmap->u.elf.fd != -1)
{
struct elf_section_map esm;
esm.fmap = fmap;
for (esm.sidx = 0; esm.sidx < fmap->elfhdr.e_shnum; esm.sidx++)
struct image_section_map ism;
ism.fmap = fmap;
for (ism.sidx = 0; ism.sidx < fmap->u.elf.elfhdr.e_shnum; ism.sidx++)
{
elf_unmap_section(&esm);
elf_unmap_section(&ism);
}
HeapFree(GetProcessHeap(), 0, fmap->sect);
close(fmap->fd);
HeapFree(GetProcessHeap(), 0, fmap->u.elf.sect);
close(fmap->u.elf.fd);
}
fmap = fmap->alternate;
fmap = fmap->u.elf.alternate;
}
}
static void elf_module_remove(struct process* pcs, struct module_format* modfmt)
{
elf_unmap_file(&modfmt->u.elf_info->file_map);
HeapFree(GetProcessHeap(), 0, modfmt);
}
/******************************************************************
* elf_is_in_thunk_area
*
@@ -382,8 +354,8 @@ int elf_is_in_thunk_area(unsigned long addr,
*
* creating an internal hash table to ease use ELF symtab information lookup
*/
static void elf_hash_symtab(struct module* module, struct pool* pool,
struct hash_table* ht_symtab, struct elf_file_map* fmap,
static void elf_hash_symtab(struct module* module, struct pool* pool,
struct hash_table* ht_symtab, struct image_file_map* fmap,
struct elf_thunk_area* thunks)
{
int i, j, nsym;
@@ -393,16 +365,20 @@ static void elf_hash_symtab(struct module* module, struct pool* pool,
const char* ptr;
const Elf_Sym* symp;
struct symtab_elt* ste;
struct elf_section_map esm, esm_str;
struct image_section_map ism, ism_str;
if (!elf_find_section(fmap, ".symtab", SHT_SYMTAB, &esm) &&
!elf_find_section(fmap, ".dynsym", SHT_DYNSYM, &esm)) return;
if ((symp = (const Elf_Sym*)elf_map_section(&esm)) == ELF_NO_MAP) return;
esm_str.fmap = fmap;
esm_str.sidx = fmap->sect[esm.sidx].shdr.sh_link;
if ((strp = elf_map_section(&esm_str)) == ELF_NO_MAP) return;
if (!elf_find_section(fmap, ".symtab", SHT_SYMTAB, &ism) &&
!elf_find_section(fmap, ".dynsym", SHT_DYNSYM, &ism)) return;
if ((symp = (const Elf_Sym*)image_map_section(&ism)) == IMAGE_NO_MAP) return;
ism_str.fmap = ism.fmap;
ism_str.sidx = fmap->u.elf.sect[ism.sidx].shdr.sh_link;
if ((strp = image_map_section(&ism_str)) == IMAGE_NO_MAP)
{
image_unmap_section(&ism);
return;
}
nsym = elf_get_map_size(&esm) / sizeof(*symp);
nsym = image_get_map_size(&ism) / sizeof(*symp);
for (j = 0; thunks[j].symname; j++)
thunks[j].rva_start = thunks[j].rva_end = 0;
@@ -567,6 +543,7 @@ static void elf_finish_stabs_info(struct module* module, const struct hash_table
void* ptr;
struct symt_ht* sym;
const Elf_Sym* symp;
struct elf_module_info* elf_info = module->format_info[DFI_ELF]->u.elf_info;
hash_table_iter_init(&module->ht_symbols, &hti, NULL);
while ((ptr = hash_table_iter_up(&hti)))
@@ -575,7 +552,7 @@ static void elf_finish_stabs_info(struct module* module, const struct hash_table
switch (sym->symt.tag)
{
case SymTagFunction:
if (((struct symt_function*)sym)->address != module->elf_info->elf_addr &&
if (((struct symt_function*)sym)->address != elf_info->elf_addr &&
((struct symt_function*)sym)->size)
{
break;
@@ -584,18 +561,17 @@ static void elf_finish_stabs_info(struct module* module, const struct hash_table
((struct symt_function*)sym)->container);
if (symp)
{
if (((struct symt_function*)sym)->address != module->elf_info->elf_addr &&
((struct symt_function*)sym)->address != module->elf_info->elf_addr + symp->st_value)
if (((struct symt_function*)sym)->address != elf_info->elf_addr &&
((struct symt_function*)sym)->address != elf_info->elf_addr + symp->st_value)
FIXME("Changing address for %p/%s!%s from %08lx to %08lx\n",
sym, debugstr_w(module->module.ModuleName), sym->hash_elt.name,
((struct symt_function*)sym)->address, module->elf_info->elf_addr + symp->st_value);
((struct symt_function*)sym)->address, elf_info->elf_addr + symp->st_value);
if (((struct symt_function*)sym)->size && ((struct symt_function*)sym)->size != symp->st_size)
FIXME("Changing size for %p/%s!%s from %08lx to %08x\n",
sym, debugstr_w(module->module.ModuleName), sym->hash_elt.name,
((struct symt_function*)sym)->size, (unsigned int)symp->st_size);
((struct symt_function*)sym)->address = module->elf_info->elf_addr +
symp->st_value;
((struct symt_function*)sym)->address = elf_info->elf_addr + symp->st_value;
((struct symt_function*)sym)->size = symp->st_size;
} else
FIXME("Couldn't find %s!%s\n",
@@ -606,19 +582,18 @@ static void elf_finish_stabs_info(struct module* module, const struct hash_table
{
case DataIsGlobal:
case DataIsFileStatic:
if (((struct symt_data*)sym)->u.var.offset != module->elf_info->elf_addr)
if (((struct symt_data*)sym)->u.var.offset != elf_info->elf_addr)
break;
symp = elf_lookup_symtab(module, symtab, sym->hash_elt.name,
((struct symt_data*)sym)->container);
if (symp)
{
if (((struct symt_data*)sym)->u.var.offset != module->elf_info->elf_addr &&
((struct symt_data*)sym)->u.var.offset != module->elf_info->elf_addr + symp->st_value)
if (((struct symt_data*)sym)->u.var.offset != elf_info->elf_addr &&
((struct symt_data*)sym)->u.var.offset != elf_info->elf_addr + symp->st_value)
FIXME("Changing address for %p/%s!%s from %08lx to %08lx\n",
sym, debugstr_w(module->module.ModuleName), sym->hash_elt.name,
((struct symt_function*)sym)->address, module->elf_info->elf_addr + symp->st_value);
((struct symt_data*)sym)->u.var.offset = module->elf_info->elf_addr +
symp->st_value;
((struct symt_function*)sym)->address, elf_info->elf_addr + symp->st_value);
((struct symt_data*)sym)->u.var.offset = elf_info->elf_addr + symp->st_value;
((struct symt_data*)sym)->kind = (ELF32_ST_BIND(symp->st_info) == STB_LOCAL) ?
DataIsFileStatic : DataIsGlobal;
} else
@@ -656,7 +631,7 @@ static int elf_new_wine_thunks(struct module* module, const struct hash_table* h
{
if (ste->used) continue;
addr = module->elf_info->elf_addr + ste->symp->st_value;
addr = module->format_info[DFI_ELF]->u.elf_info->elf_addr + ste->symp->st_value;
j = elf_is_in_thunk_area(ste->symp->st_value, thunks);
if (j >= 0) /* thunk found */
@@ -748,20 +723,20 @@ static int elf_new_public_symbols(struct module* module, const struct hash_table
while ((ste = hash_table_iter_up(&hti)))
{
symt_new_public(module, ste->compiland, ste->ht_elt.name,
module->elf_info->elf_addr + ste->symp->st_value,
module->format_info[DFI_ELF]->u.elf_info->elf_addr + ste->symp->st_value,
ste->symp->st_size);
}
return TRUE;
}
static BOOL elf_check_debug_link(const WCHAR* file, struct elf_file_map* fmap, DWORD crc)
static BOOL elf_check_debug_link(const WCHAR* file, struct image_file_map* fmap, DWORD crc)
{
BOOL ret;
if (!elf_map_file(file, fmap)) return FALSE;
if (!(ret = crc == calc_crc32(fmap->fd)))
if (!(ret = crc == calc_crc32(fmap->u.elf.fd)))
{
WARN("Bad CRC for file %s (got %08x while expecting %08x)\n",
debugstr_w(file), calc_crc32(fmap->fd), crc);
debugstr_w(file), calc_crc32(fmap->u.elf.fd), crc);
elf_unmap_file(fmap);
}
return ret;
@@ -786,7 +761,7 @@ static BOOL elf_check_debug_link(const WCHAR* file, struct elf_file_map* fmap, D
* is the global debug file directory, and execdir has been turned
* into a relative path)." (from GDB manual)
*/
static BOOL elf_locate_debug_link(struct elf_file_map* fmap, const char* filename,
static BOOL elf_locate_debug_link(struct image_file_map* fmap, const char* filename,
const WCHAR* loaded_file, DWORD crc)
{
static const WCHAR globalDebugDirW[] = {'/','u','s','r','/','l','i','b','/','d','e','b','u','g','/'};
@@ -795,7 +770,7 @@ static BOOL elf_locate_debug_link(struct elf_file_map* fmap, const char* filenam
size_t filename_len;
WCHAR* p = NULL;
WCHAR* slash;
struct elf_file_map* fmap_link = NULL;
struct image_file_map* fmap_link = NULL;
fmap_link = HeapAlloc(GetProcessHeap(), 0, sizeof(*fmap_link));
if (!fmap_link) return FALSE;
@@ -838,7 +813,7 @@ static BOOL elf_locate_debug_link(struct elf_file_map* fmap, const char* filenam
found:
TRACE("Located debug information file %s at %s\n", filename, debugstr_w(p));
HeapFree(GetProcessHeap(), 0, p);
fmap->alternate = fmap_link;
fmap->u.elf.alternate = fmap_link;
return TRUE;
}
@@ -848,7 +823,7 @@ found:
* Parses a .gnu_debuglink section and loads the debug info from
* the external file specified there.
*/
static BOOL elf_debuglink_parse(struct elf_file_map* fmap, const struct module* module,
static BOOL elf_debuglink_parse(struct image_file_map* fmap, const struct module* module,
const BYTE* debuglink)
{
/* The content of a debug link section is:
@@ -877,8 +852,8 @@ static BOOL elf_debuglink_parse(struct elf_file_map* fmap, const struct module*
* read or parsed)
* 1 on success
*/
static BOOL elf_load_debug_info_from_map(struct module* module,
struct elf_file_map* fmap,
static BOOL elf_load_debug_info_from_map(struct module* module,
struct image_file_map* fmap,
struct pool* pool,
struct hash_table* ht_symtab)
{
@@ -901,18 +876,16 @@ static BOOL elf_load_debug_info_from_map(struct module* module,
if (!(dbghelp_options & SYMOPT_PUBLICS_ONLY))
{
struct elf_section_map stab_sect, stabstr_sect;
struct elf_section_map debug_sect, debug_str_sect, debug_abbrev_sect,
debug_line_sect, debug_loclist_sect;
struct elf_section_map debuglink_sect;
struct image_section_map stab_sect, stabstr_sect;
struct image_section_map debuglink_sect;
/* if present, add the .gnu_debuglink file as an alternate to current one */
if (elf_find_section(fmap, ".gnu_debuglink", SHT_NULL, &debuglink_sect))
{
const BYTE* dbg_link;
dbg_link = (const BYTE*)elf_map_section(&debuglink_sect);
if (dbg_link != ELF_NO_MAP)
dbg_link = (const BYTE*)image_map_section(&debuglink_sect);
if (dbg_link != IMAGE_NO_MAP)
{
lret = elf_debuglink_parse(fmap, module, dbg_link);
if (!lret)
@@ -920,7 +893,7 @@ static BOOL elf_load_debug_info_from_map(struct module* module,
debugstr_w(module->module.ModuleName));
ret = ret || lret;
}
elf_unmap_section(&debuglink_sect);
image_unmap_section(&debuglink_sect);
}
if (elf_find_section(fmap, ".stab", SHT_NULL, &stab_sect) &&
elf_find_section(fmap, ".stabstr", SHT_NULL, &stabstr_sect))
@@ -928,14 +901,14 @@ static BOOL elf_load_debug_info_from_map(struct module* module,
const char* stab;
const char* stabstr;
stab = elf_map_section(&stab_sect);
stabstr = elf_map_section(&stabstr_sect);
if (stab != ELF_NO_MAP && stabstr != ELF_NO_MAP)
stab = image_map_section(&stab_sect);
stabstr = image_map_section(&stabstr_sect);
if (stab != IMAGE_NO_MAP && stabstr != IMAGE_NO_MAP)
{
/* OK, now just parse all of the stabs. */
lret = stabs_parse(module, module->elf_info->elf_addr,
stab, elf_get_map_size(&stab_sect),
stabstr, elf_get_map_size(&stabstr_sect),
lret = stabs_parse(module, module->format_info[DFI_ELF]->u.elf_info->elf_addr,
stab, image_get_map_size(&stab_sect),
stabstr, image_get_map_size(&stabstr_sect),
NULL, NULL);
if (lret)
/* and fill in the missing information for stabs */
@@ -945,57 +918,12 @@ static BOOL elf_load_debug_info_from_map(struct module* module,
ret = ret || lret;
}
else lret = FALSE;
elf_unmap_section(&stab_sect);
elf_unmap_section(&stabstr_sect);
}
if (elf_find_section(fmap, ".debug_info", SHT_NULL, &debug_sect))
{
/* Dwarf 2 debug information */
const BYTE* dw2_debug;
const BYTE* dw2_debug_abbrev;
const BYTE* dw2_debug_str;
const BYTE* dw2_debug_line;
const BYTE* dw2_debug_loclist;
/* debug info might have a different base address than .so file
* when elf file is prelinked after splitting off debug info
* adjust symbol base addresses accordingly
*/
unsigned long load_offset = module->elf_info->elf_addr +
fmap->elf_start - debug_sect.fmap->elf_start;
TRACE("Loading Dwarf2 information for %s\n", debugstr_w(module->module.ModuleName));
elf_find_section(fmap, ".debug_str", SHT_NULL, &debug_str_sect);
elf_find_section(fmap, ".debug_abbrev", SHT_NULL, &debug_abbrev_sect);
elf_find_section(fmap, ".debug_line", SHT_NULL, &debug_line_sect);
elf_find_section(fmap, ".debug_loc", SHT_NULL, &debug_loclist_sect);
dw2_debug = (const BYTE*)elf_map_section(&debug_sect);
dw2_debug_abbrev = (const BYTE*)elf_map_section(&debug_abbrev_sect);
dw2_debug_str = (const BYTE*)elf_map_section(&debug_str_sect);
dw2_debug_line = (const BYTE*)elf_map_section(&debug_line_sect);
dw2_debug_loclist = (const BYTE*)elf_map_section(&debug_loclist_sect);
if (dw2_debug != ELF_NO_MAP && dw2_debug_abbrev != ELF_NO_MAP && dw2_debug_str != ELF_NO_MAP)
{
/* OK, now just parse dwarf2 debug infos. */
lret = dwarf2_parse(module, load_offset, thunks,
dw2_debug, elf_get_map_size(&debug_sect),
dw2_debug_abbrev, elf_get_map_size(&debug_abbrev_sect),
dw2_debug_str, elf_get_map_size(&debug_str_sect),
dw2_debug_line, elf_get_map_size(&debug_line_sect),
dw2_debug_loclist, elf_get_map_size(&debug_loclist_sect));
if (!lret)
WARN("Couldn't correctly read dwarf2\n");
ret = ret || lret;
}
elf_unmap_section(&debug_sect);
elf_unmap_section(&debug_abbrev_sect);
elf_unmap_section(&debug_str_sect);
elf_unmap_section(&debug_line_sect);
elf_unmap_section(&debug_loclist_sect);
image_unmap_section(&stab_sect);
image_unmap_section(&stabstr_sect);
}
lret = dwarf2_parse(module, module->format_info[DFI_ELF]->u.elf_info->elf_addr,
thunks, fmap);
ret = ret || lret;
}
if (strstrW(module->module.ModuleName, S_ElfW) ||
!strcmpW(module->module.ModuleName, S_WineLoaderW))
@@ -1015,14 +943,15 @@ static BOOL elf_load_debug_info_from_map(struct module* module,
*
* Loads ELF debugging information from the module image file.
*/
BOOL elf_load_debug_info(struct module* module, struct elf_file_map* fmap)
BOOL elf_load_debug_info(struct module* module, struct image_file_map* fmap)
{
BOOL ret = TRUE;
struct pool pool;
struct hash_table ht_symtab;
struct elf_file_map my_fmap;
BOOL ret = TRUE;
struct pool pool;
struct hash_table ht_symtab;
struct image_file_map my_fmap;
struct module_format* modfmt;
if (module->type != DMT_ELF || !module->elf_info)
if (module->type != DMT_ELF || !(modfmt = module->format_info[DFI_ELF]) || !modfmt->u.elf_info)
{
ERR("Bad elf module '%s'\n", debugstr_w(module->module.LoadedImageName));
return FALSE;
@@ -1039,6 +968,12 @@ BOOL elf_load_debug_info(struct module* module, struct elf_file_map* fmap)
if (ret)
ret = elf_load_debug_info_from_map(module, fmap, &pool, &ht_symtab);
if (ret)
{
modfmt->u.elf_info->file_map = *fmap;
elf_reset_file_map(fmap);
}
pool_destroy(&pool);
if (fmap == &my_fmap) elf_unmap_file(fmap);
return ret;
@@ -1052,12 +987,12 @@ BOOL elf_load_debug_info(struct module* module, struct elf_file_map* fmap)
BOOL elf_fetch_file_info(const WCHAR* name, DWORD* base,
DWORD* size, DWORD* checksum)
{
struct elf_file_map fmap;
struct image_file_map fmap;
if (!elf_map_file(name, &fmap)) return FALSE;
if (base) *base = fmap.elf_start;
*size = fmap.elf_size;
*checksum = calc_crc32(fmap.fd);
if (base) *base = fmap.u.elf.elf_start;
*size = fmap.u.elf.elf_size;
*checksum = calc_crc32(fmap.u.elf.fd);
elf_unmap_file(&fmap);
return TRUE;
}
@@ -1076,8 +1011,8 @@ BOOL elf_fetch_file_info(const WCHAR* name, DWORD* base,
static BOOL elf_load_file(struct process* pcs, const WCHAR* filename,
unsigned long load_offset, struct elf_info* elf_info)
{
BOOL ret = FALSE;
struct elf_file_map fmap;
BOOL ret = FALSE;
struct image_file_map fmap;
TRACE("Processing elf file '%s' at %08lx\n", debugstr_w(filename), load_offset);
@@ -1087,10 +1022,10 @@ static BOOL elf_load_file(struct process* pcs, const WCHAR* filename,
* this thing. We need the main executable header, and the section
* table.
*/
if (!fmap.elf_start && !load_offset)
if (!fmap.u.elf.elf_start && !load_offset)
ERR("Relocatable ELF %s, but no load address. Loading at 0x0000000\n",
debugstr_w(filename));
if (fmap.elf_start && load_offset)
if (fmap.u.elf.elf_start && load_offset)
{
WARN("Non-relocatable ELF %s, but load address of 0x%08lx supplied. "
"Assuming load address is corrupt\n", debugstr_w(filename), load_offset);
@@ -1099,12 +1034,12 @@ static BOOL elf_load_file(struct process* pcs, const WCHAR* filename,
if (elf_info->flags & ELF_INFO_DEBUG_HEADER)
{
struct elf_section_map esm;
struct image_section_map ism;
if (elf_find_section(&fmap, ".dynamic", SHT_DYNAMIC, &esm))
if (elf_find_section(&fmap, ".dynamic", SHT_DYNAMIC, &ism))
{
Elf_Dyn dyn;
char* ptr = (char*)fmap.sect[esm.sidx].shdr.sh_addr;
char* ptr = (char*)fmap.u.elf.sect[ism.sidx].shdr.sh_addr;
unsigned long len;
do
@@ -1126,29 +1061,40 @@ static BOOL elf_load_file(struct process* pcs, const WCHAR* filename,
if (elf_info->flags & ELF_INFO_MODULE)
{
struct elf_module_info *elf_module_info =
HeapAlloc(GetProcessHeap(), 0, sizeof(struct elf_module_info));
if (!elf_module_info) goto leave;
struct elf_module_info *elf_module_info;
struct module_format* modfmt;
modfmt = HeapAlloc(GetProcessHeap(), 0,
sizeof(struct module_format) + sizeof(struct elf_module_info));
if (!modfmt) goto leave;
elf_info->module = module_new(pcs, filename, DMT_ELF, FALSE,
(load_offset) ? load_offset : fmap.elf_start,
fmap.elf_size, 0, calc_crc32(fmap.fd));
(load_offset) ? load_offset : fmap.u.elf.elf_start,
fmap.u.elf.elf_size, 0, calc_crc32(fmap.u.elf.fd));
if (!elf_info->module)
{
HeapFree(GetProcessHeap(), 0, elf_module_info);
HeapFree(GetProcessHeap(), 0, modfmt);
goto leave;
}
elf_info->module->elf_info = elf_module_info;
elf_info->module->elf_info->elf_addr = load_offset;
elf_module_info = (void*)(modfmt + 1);
elf_info->module->format_info[DFI_ELF] = modfmt;
modfmt->module = elf_info->module;
modfmt->remove = elf_module_remove;
modfmt->loc_compute = NULL;
modfmt->u.elf_info = elf_module_info;
elf_module_info->elf_addr = load_offset;
if (dbghelp_options & SYMOPT_DEFERRED_LOADS)
{
elf_info->module->module.SymType = SymDeferred;
elf_module_info->file_map = fmap;
elf_reset_file_map(&fmap);
ret = TRUE;
}
else ret = elf_load_debug_info(elf_info->module, &fmap);
elf_info->module->elf_info->elf_mark = 1;
elf_info->module->elf_info->elf_loader = 0;
elf_module_info->elf_mark = 1;
elf_module_info->elf_loader = 0;
} else ret = TRUE;
if (elf_info->flags & ELF_INFO_NAME)
@@ -1260,7 +1206,7 @@ static BOOL elf_search_and_load_file(struct process* pcs, const WCHAR* filename,
if ((module = module_is_already_loaded(pcs, filename)))
{
elf_info->module = module;
module->elf_info->elf_mark = 1;
elf_info->module->format_info[DFI_ELF]->u.elf_info->elf_mark = 1;
return module->module.SymType;
}
@@ -1352,7 +1298,7 @@ BOOL elf_synchronize_module_list(struct process* pcs)
for (module = pcs->lmodules; module; module = module->next)
{
if (module->type == DMT_ELF && !module->is_virtual)
module->elf_info->elf_mark = 0;
module->format_info[DFI_ELF]->u.elf_info->elf_mark = 0;
}
es.pcs = pcs;
@@ -1363,14 +1309,19 @@ BOOL elf_synchronize_module_list(struct process* pcs)
module = pcs->lmodules;
while (module)
{
if (module->type == DMT_ELF && !module->is_virtual &&
!module->elf_info->elf_mark && !module->elf_info->elf_loader)
if (module->type == DMT_ELF && !module->is_virtual)
{
module_remove(pcs, module);
/* restart all over */
module = pcs->lmodules;
struct elf_module_info* elf_info = module->format_info[DFI_ELF]->u.elf_info;
if (!elf_info->elf_mark && !elf_info->elf_loader)
{
module_remove(pcs, module);
/* restart all over */
module = pcs->lmodules;
continue;
}
}
else module = module->next;
module = module->next;
}
return TRUE;
}
@@ -1415,7 +1366,7 @@ BOOL elf_read_wine_loader_dbg_info(struct process* pcs)
elf_info.flags = ELF_INFO_DEBUG_HEADER | ELF_INFO_MODULE;
if (!elf_search_loader(pcs, &elf_info)) return FALSE;
elf_info.module->elf_info->elf_loader = 1;
elf_info.module->format_info[DFI_ELF]->u.elf_info->elf_loader = 1;
module_set_module(elf_info.module, S_WineLoaderW);
return (pcs->dbg_hdr_addr = elf_info.dbg_hdr_addr) != 0;
}
@@ -1516,6 +1467,30 @@ struct module* elf_load_module(struct process* pcs, const WCHAR* name, unsigned
#else /* !__ELF__ */
BOOL elf_find_section(struct image_file_map* fmap, const char* name,
unsigned sht, struct image_section_map* ism)
{
return FALSE;
}
const char* elf_map_section(struct image_section_map* ism)
{
return NULL;
}
void elf_unmap_section(struct image_section_map* ism)
{}
unsigned elf_get_map_size(const struct image_section_map* ism)
{
return 0;
}
DWORD_PTR elf_get_map_rva(const struct image_section_map* ism)
{
return 0;
}
BOOL elf_synchronize_module_list(struct process* pcs)
{
return FALSE;
@@ -1542,7 +1517,7 @@ struct module* elf_load_module(struct process* pcs, const WCHAR* name, unsigned
return NULL;
}
BOOL elf_load_debug_info(struct module* module, struct elf_file_map* fmap)
BOOL elf_load_debug_info(struct module* module, struct image_file_map* fmap)
{
return FALSE;
}
reactos/dll/win32/dbghelp/image_private.h
+182
View File
@@ -0,0 +1,182 @@
/*
* 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
#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
#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
#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;
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) */
#ifdef __ELF__
Elf_Ehdr elfhdr;
struct
{
Elf_Shdr shdr;
const char* mapped;
}* sect;
#endif
} elf;
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);
extern const char* elf_map_section(struct image_section_map* ism);
extern void elf_unmap_section(struct image_section_map* ism);
extern DWORD_PTR elf_get_map_rva(const struct image_section_map* ism);
extern unsigned elf_get_map_size(const struct image_section_map* ism);
extern BOOL pe_find_section(struct image_file_map* fmap, const char* name,
struct image_section_map* ism);
extern const char* pe_map_section(struct image_section_map* psm);
extern void pe_unmap_section(struct image_section_map* psm);
extern DWORD_PTR pe_get_map_rva(const struct image_section_map* psm);
extern unsigned pe_get_map_size(const struct image_section_map* psm);
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_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_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_PE: pe_unmap_section(ism); break;
default: assert(0); return;
}
}
static inline DWORD_PTR image_get_map_rva(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_PE: return pe_get_map_rva(ism);
default: assert(0); return 0;
}
}
static inline unsigned image_get_map_size(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_PE: return pe_get_map_size(ism);
default: assert(0); return 0;
}
}
reactos/dll/win32/dbghelp/macho_module.c
+28 -18
View File
@@ -655,9 +655,10 @@ static int macho_parse_symtab(struct macho_file_map* fmap,
sc->stroff, sc->strsize, (const void**)&stab, (const void**)&stabstr))
return 0;
if (!stabs_parse(mdi->module, mdi->module->macho_info->load_addr - fmap->segs_start,
stab, sc->nsyms * sizeof(struct nlist),
stabstr, sc->strsize, macho_stabs_def_cb, mdi))
if (!stabs_parse(mdi->module,
mdi->module->format_info[DFI_MACHO]->u.macho_info->load_addr - fmap->segs_start,
stab, sc->nsyms * sizeof(struct nlist),
stabstr, sc->strsize, macho_stabs_def_cb, mdi))
ret = -1;
macho_unmap_ranges(fmap, sc->symoff, sc->nsyms * sizeof(struct nlist),
@@ -703,7 +704,7 @@ static void macho_finish_stabs(struct module* module, struct hash_table* ht_symt
{
case SymTagFunction:
func = (struct symt_function*)sym;
if (func->address == module->macho_info->load_addr)
if (func->address == module->format_info[DFI_MACHO]->u.macho_info->load_addr)
{
TRACE("Adjusting function %p/%s!%s from 0x%08lx to 0x%08lx\n", func,
debugstr_w(module->module.ModuleName), sym->hash_elt.name,
@@ -720,7 +721,7 @@ static void macho_finish_stabs(struct module* module, struct hash_table* ht_symt
{
case DataIsGlobal:
case DataIsFileStatic:
if (data->u.var.offset == module->macho_info->load_addr)
if (data->u.var.offset == module->format_info[DFI_MACHO]->u.macho_info->load_addr)
{
TRACE("Adjusting data symbol %p/%s!%s from 0x%08lx to 0x%08lx\n",
data, debugstr_w(module->module.ModuleName), sym->hash_elt.name,
@@ -879,7 +880,7 @@ BOOL macho_load_debug_info(struct module* module, struct macho_file_map* fmap)
TRACE("(%p, %p/%d)\n", module, fmap, fmap ? fmap->fd : -1);
if (module->type != DMT_MACHO || !module->macho_info)
if (module->type != DMT_MACHO || !module->format_info[DFI_MACHO]->u.macho_info)
{
ERR("Bad Mach-O module '%s'\n", debugstr_w(module->module.LoadedImageName));
return FALSE;
@@ -963,26 +964,34 @@ static BOOL macho_load_file(struct process* pcs, const WCHAR* filename,
if (macho_info->flags & MACHO_INFO_MODULE)
{
struct macho_module_info *macho_module_info =
HeapAlloc(GetProcessHeap(), 0, sizeof(struct macho_module_info));
if (!macho_module_info) goto leave;
struct macho_module_info *macho_module_info;
struct module_format* modfmt =
HeapAlloc(GetProcessHeap(), 0, sizeof(struct module_format) + sizeof(struct macho_module_info));
if (!modfmt) goto leave;
macho_info->module = module_new(pcs, filename, DMT_MACHO, FALSE, load_addr,
fmap.segs_size, 0, calc_crc32(fmap.fd));
if (!macho_info->module)
{
HeapFree(GetProcessHeap(), 0, macho_module_info);
HeapFree(GetProcessHeap(), 0, modfmt);
goto leave;
}
macho_info->module->macho_info = macho_module_info;
macho_info->module->macho_info->load_addr = load_addr;
macho_module_info = (void*)(modfmt + 1);
macho_info->module->format_info[DFI_MACHO] = modfmt;
modfmt->module = macho_info->module;
modfmt->remove = NULL;
modfmt->loc_compute = NULL;
modfmt->u.macho_info = macho_module_info;
macho_module_info->load_addr = load_addr;
if (dbghelp_options & SYMOPT_DEFERRED_LOADS)
macho_info->module->module.SymType = SymDeferred;
else if (!macho_load_debug_info(macho_info->module, &fmap))
ret = FALSE;
macho_info->module->macho_info->in_use = 1;
macho_info->module->macho_info->is_loader = 0;
macho_info->module->format_info[DFI_MACHO]->u.macho_info->in_use = 1;
macho_info->module->format_info[DFI_MACHO]->u.macho_info->is_loader = 0;
TRACE("module = %p\n", macho_info->module);
}
@@ -1109,7 +1118,7 @@ static BOOL macho_search_and_load_file(struct process* pcs, const WCHAR* filenam
if ((module = module_is_already_loaded(pcs, filename)))
{
macho_info->module = module;
module->macho_info->in_use = 1;
module->format_info[DFI_MACHO]->u.macho_info->in_use = 1;
return module->module.SymType;
}
@@ -1231,7 +1240,7 @@ BOOL macho_synchronize_module_list(struct process* pcs)
for (module = pcs->lmodules; module; module = module->next)
{
if (module->type == DMT_MACHO && !module->is_virtual)
module->macho_info->in_use = 0;
module->format_info[DFI_MACHO]->u.macho_info->in_use = 0;
}
ms.pcs = pcs;
@@ -1243,7 +1252,8 @@ BOOL macho_synchronize_module_list(struct process* pcs)
while (module)
{
if (module->type == DMT_MACHO && !module->is_virtual &&
!module->macho_info->in_use && !module->macho_info->is_loader)
!module->format_info[DFI_MACHO]->u.macho_info->in_use &&
!module->format_info[DFI_MACHO]->u.macho_info->is_loader)
{
module_remove(pcs, module);
/* restart all over */
@@ -1297,7 +1307,7 @@ BOOL macho_read_wine_loader_dbg_info(struct process* pcs)
TRACE("(%p/%p)\n", pcs, pcs->handle);
macho_info.flags = MACHO_INFO_DEBUG_HEADER | MACHO_INFO_MODULE;
if (!macho_search_loader(pcs, &macho_info)) return FALSE;
macho_info.module->macho_info->is_loader = 1;
macho_info.module->format_info[DFI_MACHO]->u.macho_info->is_loader = 1;
module_set_module(macho_info.module, S_WineLoaderW);
return (pcs->dbg_hdr_addr = macho_info.dbg_hdr_addr) != 0;
}
reactos/dll/win32/dbghelp/module.c
+10 -1
View File
@@ -126,6 +126,7 @@ struct module* module_new(struct process* pcs, const WCHAR* name,
unsigned long stamp, unsigned long checksum)
{
struct module* module;
unsigned i;
assert(type == DMT_ELF || type == DMT_PE || type == DMT_MACHO);
if (!(module = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*module))))
@@ -168,6 +169,7 @@ struct module* module_new(struct process* pcs, const WCHAR* name,
module->type = type;
module->is_virtual = virtual ? TRUE : FALSE;
for (i = 0; i < DFI_LAST; i++) module->format_info[i] = NULL;
module->sortlist_valid = FALSE;
module->sorttab_size = 0;
module->addr_sorttab = NULL;
@@ -621,14 +623,21 @@ DWORD64 WINAPI SymLoadModule64(HANDLE hProcess, HANDLE hFile, PCSTR ImageName,
*/
BOOL module_remove(struct process* pcs, struct module* module)
{
struct module_format*modfmt;
struct module** p;
unsigned i;
TRACE("%s (%p)\n", debugstr_w(module->module.ModuleName), module);
for (i = 0; i < DFI_LAST; i++)
{
if ((modfmt = module->format_info[i]) && modfmt->remove)
modfmt->remove(pcs, module->format_info[i]);
}
hash_table_destroy(&module->ht_symbols);
hash_table_destroy(&module->ht_types);
HeapFree(GetProcessHeap(), 0, module->sources);
HeapFree(GetProcessHeap(), 0, module->addr_sorttab);
HeapFree(GetProcessHeap(), 0, module->dwarf2_info);
pool_destroy(&module->pool);
/* native dbghelp doesn't invoke registered callback(,CBA_SYMBOLS_UNLOADED,) here
* so do we
reactos/dll/win32/dbghelp/pe_module.c
+340 -153
View File
@@ -30,11 +30,239 @@
#include <assert.h>
#include "dbghelp_private.h"
#include "image_private.h"
#include "winternl.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(dbghelp);
struct pe_module_info
{
struct image_file_map fmap;
};
static void* pe_map_full(struct image_file_map* fmap, IMAGE_NT_HEADERS** nth)
{
if (!fmap->u.pe.full_map)
{
fmap->u.pe.full_map = MapViewOfFile(fmap->u.pe.hMap, FILE_MAP_READ, 0, 0, 0);
}
if (fmap->u.pe.full_map)
{
if (nth) *nth = RtlImageNtHeader(fmap->u.pe.full_map);
fmap->u.pe.full_count++;
return fmap->u.pe.full_map;
}
return IMAGE_NO_MAP;
}
static void pe_unmap_full(struct image_file_map* fmap)
{
if (fmap->u.pe.full_count && !--fmap->u.pe.full_count)
{
UnmapViewOfFile(fmap->u.pe.full_map);
fmap->u.pe.full_map = NULL;
}
}
/******************************************************************
* pe_map_section
*
* Maps a single section into memory from an PE file
*/
const char* pe_map_section(struct image_section_map* ism)
{
void* mapping;
struct pe_file_map* fmap = &ism->fmap->u.pe;
if (ism->sidx >= 0 && ism->sidx < fmap->ntheader.FileHeader.NumberOfSections &&
fmap->sect[ism->sidx].mapped == IMAGE_NO_MAP)
{
IMAGE_NT_HEADERS* nth;
/* FIXME: that's rather drastic, but that will do for now
* that's ok if the full file map exists, but we could be less agressive otherwise and
* only map the relevant section
*/
if ((mapping = pe_map_full(ism->fmap, &nth)))
{
fmap->sect[ism->sidx].mapped = RtlImageRvaToVa(nth, mapping,
fmap->sect[ism->sidx].shdr.VirtualAddress,
NULL);
return fmap->sect[ism->sidx].mapped;
}
}
return IMAGE_NO_MAP;
}
/******************************************************************
* pe_find_section
*
* Finds a section by name (and type) into memory from an PE file
* or its alternate if any
*/
BOOL pe_find_section(struct image_file_map* fmap, const char* name,
struct image_section_map* ism)
{
const char* sectname;
unsigned i;
char tmp[IMAGE_SIZEOF_SHORT_NAME + 1];
for (i = 0; i < fmap->u.pe.ntheader.FileHeader.NumberOfSections; i++)
{
sectname = (const char*)fmap->u.pe.sect[i].shdr.Name;
/* long section names start with a '/' (at least on MinGW32) */
if (sectname[0] == '/' && fmap->u.pe.strtable)
sectname = fmap->u.pe.strtable + atoi(sectname + 1);
else
{
/* the section name may not be null terminated */
sectname = memcpy(tmp, sectname, IMAGE_SIZEOF_SHORT_NAME);
tmp[IMAGE_SIZEOF_SHORT_NAME] = '\0';
}
if (!strcasecmp(sectname, name))
{
ism->fmap = fmap;
ism->sidx = i;
return TRUE;
}
}
ism->fmap = NULL;
ism->sidx = -1;
return FALSE;
}
/******************************************************************
* pe_unmap_section
*
* Unmaps a single section from memory
*/
void pe_unmap_section(struct image_section_map* ism)
{
if (ism->sidx >= 0 && ism->sidx < ism->fmap->u.pe.ntheader.FileHeader.NumberOfSections &&
ism->fmap->u.pe.sect[ism->sidx].mapped != IMAGE_NO_MAP)
{
pe_unmap_full(ism->fmap);
ism->fmap->u.pe.sect[ism->sidx].mapped = IMAGE_NO_MAP;
}
}
/******************************************************************
* pe_get_map_rva
*
* Get the RVA of an PE section
*/
DWORD_PTR pe_get_map_rva(const struct image_section_map* ism)
{
if (ism->sidx < 0 || ism->sidx >= ism->fmap->u.pe.ntheader.FileHeader.NumberOfSections)
return 0;
return ism->fmap->u.pe.sect[ism->sidx].shdr.VirtualAddress;
}
/******************************************************************
* pe_get_map_size
*
* Get the size of an PE section
*/
unsigned pe_get_map_size(const struct image_section_map* ism)
{
if (ism->sidx < 0 || ism->sidx >= ism->fmap->u.pe.ntheader.FileHeader.NumberOfSections)
return 0;
return ism->fmap->u.pe.sect[ism->sidx].shdr.SizeOfRawData;
}
/******************************************************************
* pe_map_file
*
* Maps an PE file into memory (and checks it's a real PE file)
*/
static BOOL pe_map_file(HANDLE file, struct image_file_map* fmap, enum module_type mt)
{
void* mapping;
fmap->modtype = mt;
fmap->u.pe.hMap = CreateFileMappingW(file, NULL, PAGE_READONLY, 0, 0, NULL);
if (fmap->u.pe.hMap == 0) return FALSE;
fmap->u.pe.full_count = 0;
fmap->u.pe.full_map = NULL;
if (!(mapping = pe_map_full(fmap, NULL))) goto error;
switch (mt)
{
case DMT_PE:
{
IMAGE_NT_HEADERS* nthdr;
IMAGE_SECTION_HEADER* section;
unsigned i;
if (!(nthdr = RtlImageNtHeader(mapping))) goto error;
memcpy(&fmap->u.pe.ntheader, nthdr, sizeof(fmap->u.pe.ntheader));
section = (IMAGE_SECTION_HEADER*)
((char*)&nthdr->OptionalHeader + nthdr->FileHeader.SizeOfOptionalHeader);
fmap->u.pe.sect = HeapAlloc(GetProcessHeap(), 0,
nthdr->FileHeader.NumberOfSections * sizeof(fmap->u.pe.sect[0]));
if (!fmap->u.pe.sect) goto error;
for (i = 0; i < nthdr->FileHeader.NumberOfSections; i++)
{
memcpy(&fmap->u.pe.sect[i].shdr, section + i, sizeof(IMAGE_SECTION_HEADER));
fmap->u.pe.sect[i].mapped = IMAGE_NO_MAP;
}
if (nthdr->FileHeader.PointerToSymbolTable && nthdr->FileHeader.NumberOfSymbols)
{
/* FIXME ugly: should rather map the relevant content instead of copying it */
const char* src = (const char*)mapping +
nthdr->FileHeader.PointerToSymbolTable +
nthdr->FileHeader.NumberOfSymbols * sizeof(IMAGE_SYMBOL);
char* dst;
DWORD sz = *(DWORD*)src;
if ((dst = HeapAlloc(GetProcessHeap(), 0, sz)))
memcpy(dst, src, sz);
fmap->u.pe.strtable = dst;
}
else fmap->u.pe.strtable = NULL;
}
break;
default: assert(0); goto error;
}
pe_unmap_full(fmap);
return TRUE;
error:
pe_unmap_full(fmap);
CloseHandle(fmap->u.pe.hMap);
return FALSE;
}
/******************************************************************
* pe_unmap_file
*
* Unmaps an PE file from memory (previously mapped with pe_map_file)
*/
static void pe_unmap_file(struct image_file_map* fmap)
{
if (fmap->u.pe.hMap != 0)
{
struct image_section_map ism;
ism.fmap = fmap;
for (ism.sidx = 0; ism.sidx < fmap->u.pe.ntheader.FileHeader.NumberOfSections; ism.sidx++)
{
pe_unmap_section(&ism);
}
while (fmap->u.pe.full_count) pe_unmap_full(fmap);
HeapFree(GetProcessHeap(), 0, fmap->u.pe.sect);
HeapFree(GetProcessHeap(), 0, (void*)fmap->u.pe.strtable); /* FIXME ugly (see pe_map_file) */
CloseHandle(fmap->u.pe.hMap);
fmap->u.pe.hMap = NULL;
}
}
static void pe_module_remove(struct process* pcs, struct module_format* modfmt)
{
pe_unmap_file(&modfmt->u.pe_info->fmap);
HeapFree(GetProcessHeap(), 0, modfmt);
}
/******************************************************************
* pe_locate_with_coff_symbol_table
*
@@ -43,37 +271,35 @@ WINE_DEFAULT_DEBUG_CHANNEL(dbghelp);
* Mingw32 requires this for stabs debug information as address for global variables isn't filled in
* (this is similar to what is done in elf_module.c when using the .symtab ELF section)
*/
static BOOL pe_locate_with_coff_symbol_table(struct module* module, IMAGE_NT_HEADERS* nth, void* mapping)
static BOOL pe_locate_with_coff_symbol_table(struct module* module)
{
struct image_file_map* fmap = &module->format_info[DFI_PE]->u.pe_info->fmap;
const IMAGE_SYMBOL* isym;
int i, numsym, naux;
const char* strtable;
char tmp[9];
const char* name;
struct hash_table_iter hti;
void* ptr;
struct symt_data* sym;
const IMAGE_SECTION_HEADER* sect;
const char* mapping;
numsym = nth->FileHeader.NumberOfSymbols;
if (!nth->FileHeader.PointerToSymbolTable || !numsym)
numsym = fmap->u.pe.ntheader.FileHeader.NumberOfSymbols;
if (!fmap->u.pe.ntheader.FileHeader.PointerToSymbolTable || !numsym)
return TRUE;
isym = (const IMAGE_SYMBOL*)((char*)mapping + nth->FileHeader.PointerToSymbolTable);
/* FIXME: no way to get strtable size */
strtable = (const char*)&isym[numsym];
sect = IMAGE_FIRST_SECTION(nth);
if (!(mapping = pe_map_full(fmap, NULL))) return FALSE;
isym = (const IMAGE_SYMBOL*)(mapping + fmap->u.pe.ntheader.FileHeader.PointerToSymbolTable);
for (i = 0; i < numsym; i+= naux, isym += naux)
{
if (isym->StorageClass == IMAGE_SYM_CLASS_EXTERNAL &&
isym->SectionNumber > 0 && isym->SectionNumber <= nth->FileHeader.NumberOfSections)
isym->SectionNumber > 0 && isym->SectionNumber <= fmap->u.pe.ntheader.FileHeader.NumberOfSections)
{
if (isym->N.Name.Short)
{
name = memcpy(tmp, isym->N.ShortName, 8);
tmp[8] = '\0';
}
else name = strtable + isym->N.Name.Long;
else name = fmap->u.pe.strtable + isym->N.Name.Long;
if (name[0] == '_') name++;
hash_table_iter_init(&module->ht_symbols, &hti, name);
while ((ptr = hash_table_iter_up(&hti)))
@@ -86,15 +312,17 @@ static BOOL pe_locate_with_coff_symbol_table(struct module* module, IMAGE_NT_HEA
TRACE("Changing absolute address for %d.%s: %lx -> %s\n",
isym->SectionNumber, name, sym->u.var.offset,
wine_dbgstr_longlong(module->module.BaseOfImage +
sect[isym->SectionNumber - 1].VirtualAddress + isym->Value));
fmap->u.pe.sect[isym->SectionNumber - 1].shdr.VirtualAddress +
isym->Value));
sym->u.var.offset = module->module.BaseOfImage +
sect[isym->SectionNumber - 1].VirtualAddress + isym->Value;
fmap->u.pe.sect[isym->SectionNumber - 1].shdr.VirtualAddress + isym->Value;
break;
}
}
}
naux = isym->NumberOfAuxSymbols + 1;
}
pe_unmap_full(fmap);
return TRUE;
}
@@ -103,8 +331,9 @@ static BOOL pe_locate_with_coff_symbol_table(struct module* module, IMAGE_NT_HEA
*
* Load public symbols out of the COFF symbol table (if any).
*/
static BOOL pe_load_coff_symbol_table(struct module* module, IMAGE_NT_HEADERS* nth, void* mapping)
static BOOL pe_load_coff_symbol_table(struct module* module)
{
struct image_file_map* fmap = &module->format_info[DFI_PE]->u.pe_info->fmap;
const IMAGE_SYMBOL* isym;
int i, numsym, naux;
const char* strtable;
@@ -113,14 +342,16 @@ static BOOL pe_load_coff_symbol_table(struct module* module, IMAGE_NT_HEADERS* n
const char* lastfilename = NULL;
struct symt_compiland* compiland = NULL;
const IMAGE_SECTION_HEADER* sect;
const char* mapping;
numsym = nth->FileHeader.NumberOfSymbols;
if (!nth->FileHeader.PointerToSymbolTable || !numsym)
numsym = fmap->u.pe.ntheader.FileHeader.NumberOfSymbols;
if (!fmap->u.pe.ntheader.FileHeader.PointerToSymbolTable || !numsym)
return TRUE;
isym = (const IMAGE_SYMBOL*)((char*)mapping + nth->FileHeader.PointerToSymbolTable);
if (!(mapping = pe_map_full(fmap, NULL))) return FALSE;
isym = (const IMAGE_SYMBOL*)((char*)mapping + fmap->u.pe.ntheader.FileHeader.PointerToSymbolTable);
/* FIXME: no way to get strtable size */
strtable = (const char*)&isym[numsym];
sect = IMAGE_FIRST_SECTION(nth);
sect = IMAGE_FIRST_SECTION(&fmap->u.pe.ntheader);
for (i = 0; i < numsym; i+= naux, isym += naux)
{
@@ -130,7 +361,7 @@ static BOOL pe_load_coff_symbol_table(struct module* module, IMAGE_NT_HEADERS* n
compiland = NULL;
}
if (isym->StorageClass == IMAGE_SYM_CLASS_EXTERNAL &&
isym->SectionNumber > 0 && isym->SectionNumber <= nth->FileHeader.NumberOfSections)
isym->SectionNumber > 0 && isym->SectionNumber <= fmap->u.pe.ntheader.FileHeader.NumberOfSections)
{
if (isym->N.Name.Short)
{
@@ -143,9 +374,12 @@ static BOOL pe_load_coff_symbol_table(struct module* module, IMAGE_NT_HEADERS* n
if (!compiland && lastfilename)
compiland = symt_new_compiland(module, 0,
source_new(module, NULL, lastfilename));
symt_new_public(module, compiland, name,
module->module.BaseOfImage + sect[isym->SectionNumber - 1].VirtualAddress + isym->Value,
1);
if (!(dbghelp_options & SYMOPT_NO_PUBLICS))
symt_new_public(module, compiland, name,
module->module.BaseOfImage + sect[isym->SectionNumber - 1].VirtualAddress +
isym->Value,
1);
}
naux = isym->NumberOfAuxSymbols + 1;
}
@@ -155,6 +389,7 @@ static BOOL pe_load_coff_symbol_table(struct module* module, IMAGE_NT_HEADERS* n
module->module.TypeInfo = FALSE;
module->module.SourceIndexed = FALSE;
module->module.Publics = TRUE;
pe_unmap_full(fmap);
return TRUE;
}
@@ -176,30 +411,30 @@ static inline DWORD pe_get_sect_size(IMAGE_SECTION_HEADER* sect)
* look for stabs information in PE header (it's how the mingw compiler provides
* its debugging information)
*/
static BOOL pe_load_stabs(const struct process* pcs, struct module* module,
void* mapping, IMAGE_NT_HEADERS* nth)
static BOOL pe_load_stabs(const struct process* pcs, struct module* module)
{
IMAGE_SECTION_HEADER* section;
IMAGE_SECTION_HEADER* sect_stabs = NULL;
IMAGE_SECTION_HEADER* sect_stabstr = NULL;
int i;
struct image_file_map* fmap = &module->format_info[DFI_PE]->u.pe_info->fmap;
struct image_section_map sect_stabs, sect_stabstr;
BOOL ret = FALSE;
section = (IMAGE_SECTION_HEADER*)
((char*)&nth->OptionalHeader + nth->FileHeader.SizeOfOptionalHeader);
for (i = 0; i < nth->FileHeader.NumberOfSections; i++, section++)
if (pe_find_section(fmap, ".stab", &sect_stabs) && pe_find_section(fmap, ".stabstr", &sect_stabstr))
{
if (!strcasecmp((const char*)section->Name, ".stab")) sect_stabs = section;
else if (!strncasecmp((const char*)section->Name, ".stabstr", 8)) sect_stabstr = section;
}
if (sect_stabs && sect_stabstr)
{
ret = stabs_parse(module,
module->module.BaseOfImage - nth->OptionalHeader.ImageBase,
pe_get_sect(nth, mapping, sect_stabs), pe_get_sect_size(sect_stabs),
pe_get_sect(nth, mapping, sect_stabstr), pe_get_sect_size(sect_stabstr),
NULL, NULL);
if (ret) pe_locate_with_coff_symbol_table(module, nth, mapping);
const char* stab;
const char* stabstr;
stab = image_map_section(&sect_stabs);
stabstr = image_map_section(&sect_stabstr);
if (stab != IMAGE_NO_MAP && stabstr != IMAGE_NO_MAP)
{
ret = stabs_parse(module,
module->module.BaseOfImage - fmap->u.pe.ntheader.OptionalHeader.ImageBase,
stab, image_get_map_size(&sect_stabs),
stabstr, image_get_map_size(&sect_stabstr),
NULL, NULL);
}
image_unmap_section(&sect_stabs);
image_unmap_section(&sect_stabstr);
if (ret) pe_locate_with_coff_symbol_table(module);
}
TRACE("%s the STABS debug info\n", ret ? "successfully loaded" : "failed to load");
@@ -212,51 +447,15 @@ static BOOL pe_load_stabs(const struct process* pcs, struct module* module,
* look for dwarf information in PE header (it's also a way for the mingw compiler
* to provide its debugging information)
*/
static BOOL pe_load_dwarf(const struct process* pcs, struct module* module,
void* mapping, IMAGE_NT_HEADERS* nth)
static BOOL pe_load_dwarf(struct module* module)
{
IMAGE_SECTION_HEADER* section;
IMAGE_SECTION_HEADER* sect_debuginfo = NULL;
IMAGE_SECTION_HEADER* sect_debugstr = NULL;
IMAGE_SECTION_HEADER* sect_debugabbrev = NULL;
IMAGE_SECTION_HEADER* sect_debugline = NULL;
IMAGE_SECTION_HEADER* sect_debugloc = NULL;
int i;
const char* strtable;
const char* sectname;
struct image_file_map* fmap = &module->format_info[DFI_PE]->u.pe_info->fmap;
BOOL ret = FALSE;
if (nth->FileHeader.PointerToSymbolTable && nth->FileHeader.NumberOfSymbols)
/* FIXME: no way to get strtable size */
strtable = (const char*)mapping + nth->FileHeader.PointerToSymbolTable +
nth->FileHeader.NumberOfSymbols * sizeof(IMAGE_SYMBOL);
else strtable = NULL;
section = (IMAGE_SECTION_HEADER*)
((char*)&nth->OptionalHeader + nth->FileHeader.SizeOfOptionalHeader);
for (i = 0; i < nth->FileHeader.NumberOfSections; i++, section++)
{
sectname = (const char*)section->Name;
/* long section names start with a '/' (at least on MinGW32) */
if (*sectname == '/' && strtable)
sectname = strtable + atoi(sectname + 1);
if (!strcasecmp(sectname, ".debug_info")) sect_debuginfo = section;
else if (!strcasecmp(sectname, ".debug_str")) sect_debugstr = section;
else if (!strcasecmp(sectname, ".debug_abbrev")) sect_debugabbrev = section;
else if (!strcasecmp(sectname, ".debug_line")) sect_debugline = section;
else if (!strcasecmp(sectname, ".debug_loc")) sect_debugloc = section;
}
if (sect_debuginfo)
{
ret = dwarf2_parse(module,
module->module.BaseOfImage - nth->OptionalHeader.ImageBase,
NULL, /* FIXME: some thunks to deal with ? */
pe_get_sect(nth, mapping, sect_debuginfo), pe_get_sect_size(sect_debuginfo),
pe_get_sect(nth, mapping, sect_debugabbrev), pe_get_sect_size(sect_debugabbrev),
pe_get_sect(nth, mapping, sect_debugstr), pe_get_sect_size(sect_debugstr),
pe_get_sect(nth, mapping, sect_debugline), pe_get_sect_size(sect_debugline),
pe_get_sect(nth, mapping, sect_debugloc), pe_get_sect_size(sect_debugloc));
}
ret = dwarf2_parse(module,
module->module.BaseOfImage - fmap->u.pe.ntheader.OptionalHeader.ImageBase,
NULL, /* FIXME: some thunks to deal with ? */
fmap);
TRACE("%s the DWARF debug info\n", ret ? "successfully loaded" : "failed to load");
return ret;
@@ -314,19 +513,21 @@ static BOOL pe_load_dbg_file(const struct process* pcs, struct module* module,
*
* Process MSC debug information in PE file.
*/
static BOOL pe_load_msc_debug_info(const struct process* pcs,
struct module* module,
void* mapping, const IMAGE_NT_HEADERS* nth)
static BOOL pe_load_msc_debug_info(const struct process* pcs, struct module* module)
{
struct image_file_map* fmap = &module->format_info[DFI_PE]->u.pe_info->fmap;
BOOL ret = FALSE;
const IMAGE_DATA_DIRECTORY* dir;
const IMAGE_DEBUG_DIRECTORY*dbg = NULL;
int nDbg;
void* mapping;
IMAGE_NT_HEADERS* nth;
if (!(mapping = pe_map_full(fmap, &nth))) return FALSE;
/* Read in debug directory */
dir = nth->OptionalHeader.DataDirectory + IMAGE_DIRECTORY_ENTRY_DEBUG;
nDbg = dir->Size / sizeof(IMAGE_DEBUG_DIRECTORY);
if (!nDbg) return FALSE;
if (!nDbg) goto done;
dbg = RtlImageRvaToVa(nth, mapping, dir->VirtualAddress, NULL);
@@ -353,26 +554,29 @@ static BOOL pe_load_msc_debug_info(const struct process* pcs,
const IMAGE_SECTION_HEADER *sectp = (const IMAGE_SECTION_HEADER*)((const char*)&nth->OptionalHeader + nth->FileHeader.SizeOfOptionalHeader);
/* Debug info is embedded into PE module */
ret = pe_load_debug_directory(pcs, module, mapping, sectp,
nth->FileHeader.NumberOfSections, dbg, nDbg);
nth->FileHeader.NumberOfSections, dbg, nDbg);
}
done:
pe_unmap_full(fmap);
return ret;
}
/***********************************************************************
* pe_load_export_debug_info
*/
static BOOL pe_load_export_debug_info(const struct process* pcs,
struct module* module,
void* mapping, const IMAGE_NT_HEADERS* nth)
static BOOL pe_load_export_debug_info(const struct process* pcs, struct module* module)
{
struct image_file_map* fmap = &module->format_info[DFI_PE]->u.pe_info->fmap;
unsigned int i;
const IMAGE_EXPORT_DIRECTORY* exports;
DWORD base = module->module.BaseOfImage;
DWORD size;
IMAGE_NT_HEADERS* nth;
void* mapping;
if (dbghelp_options & SYMOPT_NO_PUBLICS) return TRUE;
if (!(mapping = pe_map_full(fmap, &nth))) return FALSE;
#if 0
/* Add start of DLL (better use the (yet unimplemented) Exe SymTag for this) */
/* FIXME: module.ModuleName isn't correctly set yet if it's passed in SymLoadModule */
@@ -435,6 +639,8 @@ static BOOL pe_load_export_debug_info(const struct process* pcs,
/* no real debug info, only entry points */
if (module->module.SymType == SymDeferred)
module->module.SymType = SymExport;
pe_unmap_full(fmap);
return TRUE;
}
@@ -445,39 +651,21 @@ static BOOL pe_load_export_debug_info(const struct process* pcs,
BOOL pe_load_debug_info(const struct process* pcs, struct module* module)
{
BOOL ret = FALSE;
HANDLE hFile;
HANDLE hMap;
void* mapping;
IMAGE_NT_HEADERS* nth;
hFile = CreateFileW(module->module.LoadedImageName, GENERIC_READ, FILE_SHARE_READ,
NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
if (hFile == INVALID_HANDLE_VALUE) return ret;
if ((hMap = CreateFileMappingW(hFile, NULL, PAGE_READONLY, 0, 0, NULL)) != 0)
if (!(dbghelp_options & SYMOPT_PUBLICS_ONLY))
{
if ((mapping = MapViewOfFile(hMap, FILE_MAP_READ, 0, 0, 0)) != NULL)
{
nth = RtlImageNtHeader(mapping);
if (!(dbghelp_options & SYMOPT_PUBLICS_ONLY))
{
ret = pe_load_stabs(pcs, module, mapping, nth) ||
pe_load_dwarf(pcs, module, mapping, nth) ||
pe_load_msc_debug_info(pcs, module, mapping, nth) ||
pe_load_coff_symbol_table(module, nth, mapping);
/* if we still have no debug info (we could only get SymExport at this
* point), then do the SymExport except if we have an ELF container,
* in which case we'll rely on the export's on the ELF side
*/
}
/* FIXME shouldn't we check that? if (!module_get_debug(pcs, module))l */
if (pe_load_export_debug_info(pcs, module, mapping, nth) && !ret)
ret = TRUE;
UnmapViewOfFile(mapping);
}
CloseHandle(hMap);
ret = pe_load_stabs(pcs, module);
ret = pe_load_dwarf(module) || ret;
ret = pe_load_msc_debug_info(pcs, module) || ret;
ret = ret || pe_load_coff_symbol_table(module); /* FIXME */
/* if we still have no debug info (we could only get SymExport at this
* point), then do the SymExport except if we have an ELF container,
* in which case we'll rely on the export's on the ELF side
*/
}
CloseHandle(hFile);
/* FIXME shouldn't we check that? if (!module_get_debug(pcs, module)) */
if (pe_load_export_debug_info(pcs, module) && !ret)
ret = TRUE;
return ret;
}
@@ -489,15 +677,14 @@ BOOL pe_load_debug_info(const struct process* pcs, struct module* module)
struct module* pe_load_native_module(struct process* pcs, const WCHAR* name,
HANDLE hFile, DWORD base, DWORD size)
{
struct module* module = NULL;
BOOL opened = FALSE;
HANDLE hMap;
WCHAR loaded_name[MAX_PATH];
struct module* module = NULL;
BOOL opened = FALSE;
struct module_format* modfmt;
WCHAR loaded_name[MAX_PATH];
loaded_name[0] = '\0';
if (!hFile)
{
assert(name);
if ((hFile = FindExecutableImageExW(name, pcs->search_path, loaded_name, NULL, NULL)) == NULL)
@@ -507,37 +694,37 @@ struct module* pe_load_native_module(struct process* pcs, const WCHAR* name,
else if (name) strcpyW(loaded_name, name);
else if (dbghelp_options & SYMOPT_DEFERRED_LOADS)
FIXME("Trouble ahead (no module name passed in deferred mode)\n");
if ((hMap = CreateFileMappingW(hFile, NULL, PAGE_READONLY, 0, 0, NULL)) != NULL)
if (!(modfmt = HeapAlloc(GetProcessHeap(), 0, sizeof(struct module_format) + sizeof(struct pe_module_info))))
return NULL;
modfmt->u.pe_info = (struct pe_module_info*)(modfmt + 1);
if (pe_map_file(hFile, &modfmt->u.pe_info->fmap, DMT_PE))
{
void* mapping;
if (!base) base = modfmt->u.pe_info->fmap.u.pe.ntheader.OptionalHeader.ImageBase;
if (!size) size = modfmt->u.pe_info->fmap.u.pe.ntheader.OptionalHeader.SizeOfImage;
if ((mapping = MapViewOfFile(hMap, FILE_MAP_READ, 0, 0, 0)) != NULL)
module = module_new(pcs, loaded_name, DMT_PE, FALSE, base, size,
modfmt->u.pe_info->fmap.u.pe.ntheader.FileHeader.TimeDateStamp,
modfmt->u.pe_info->fmap.u.pe.ntheader.OptionalHeader.CheckSum);
if (module)
{
IMAGE_NT_HEADERS* nth = RtlImageNtHeader(mapping);
modfmt->module = module;
modfmt->remove = pe_module_remove;
modfmt->loc_compute = NULL;
if (nth)
{
if (!base) base = nth->OptionalHeader.ImageBase;
if (!size) size = nth->OptionalHeader.SizeOfImage;
module = module_new(pcs, loaded_name, DMT_PE, FALSE, base, size,
nth->FileHeader.TimeDateStamp,
nth->OptionalHeader.CheckSum);
if (module)
{
if (dbghelp_options & SYMOPT_DEFERRED_LOADS)
module->module.SymType = SymDeferred;
else
pe_load_debug_info(pcs, module);
}
else
ERR("could not load the module '%s'\n", debugstr_w(loaded_name));
}
UnmapViewOfFile(mapping);
module->format_info[DFI_PE] = modfmt;
if (dbghelp_options & SYMOPT_DEFERRED_LOADS)
module->module.SymType = SymDeferred;
else
pe_load_debug_info(pcs, module);
}
else
{
ERR("could not load the module '%s'\n", debugstr_w(loaded_name));
pe_unmap_file(&modfmt->u.pe_info->fmap);
}
CloseHandle(hMap);
}
if (!module) HeapFree(GetProcessHeap(), 0, modfmt);
if (opened) CloseHandle(hFile);
return module;
reactos/dll/win32/dbghelp/symbol.c
+13 -1
View File
@@ -693,8 +693,20 @@ static void symt_fill_sym_info(struct module_pair* pair,
struct location loc = data->u.var;
if (loc.kind >= loc_user)
pair->effective->loc_compute(pair->pcs, pair->effective, func, &loc);
{
unsigned i;
struct module_format* modfmt;
for (i = 0; i < DFI_LAST; i++)
{
modfmt = pair->effective->format_info[i];
if (modfmt && modfmt->loc_compute)
{
modfmt->loc_compute(pair->pcs, modfmt, func, &loc);
break;
}
}
}
switch (loc.kind)
{
case loc_error: