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dbghelp: Don't expected a fixed number of substreams in DBI header (PDB).

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MSC no longer emits a fixed number of substreams (depending on version of
PDB file), but can emit less.

Signed-off-by: Eric Pouech <epouech@codeweavers.com>
This commit is contained in:
Eric Pouech 2023-12-12 08:34:10 +01:00 • committed by Alexandre Julliard
parent dee3be21a3
commit 552bc893e1
3 changed files with 13 additions and 48 deletions
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30
dlls/dbghelp/msc.c
View file

@ -3823,7 +3823,8 @@ static BOOL pdb_process_internal(const struct process* pcs,
struct codeview_type_parse ipi_ctp;
BYTE* file;
int header_size = 0;
PDB_STREAM_INDEXES* psi;
unsigned num_sub_streams;
const unsigned short* sub_streams;
BOOL ipi_ok;
pdb_convert_symbols_header(&symbols, &header_size, symbols_image);
@ -3839,25 +3840,14 @@ static BOOL pdb_process_internal(const struct process* pcs,
symbols.version, symbols.version);
}
switch (symbols.stream_index_size)
{
case 0:
case sizeof(PDB_STREAM_INDEXES_OLD):
/* no fpo ext stream in this case */
break;
case sizeof(PDB_STREAM_INDEXES):
case sizeof(PDB_STREAM_INDEXES) + 2:
psi = (PDB_STREAM_INDEXES*)((const char*)symbols_image + sizeof(PDB_SYMBOLS) +
symbols.module_size + symbols.sectcontrib_size +
symbols.segmap_size + symbols.srcmodule_size +
symbols.pdbimport_size + symbols.unknown2_size);
pdb_file->fpoext_stream = psi->FPO_EXT;
break;
default:
FIXME("Unknown PDB_STREAM_INDEXES size (%u)\n", symbols.stream_index_size);
pdb_free(symbols_image);
return FALSE;
}
num_sub_streams = symbols.stream_index_size / sizeof(sub_streams[0]);
sub_streams = (const unsigned short*)((const char*)symbols_image + sizeof(PDB_SYMBOLS) +
symbols.module_size + symbols.sectcontrib_size +
symbols.segmap_size + symbols.srcmodule_size +
symbols.pdbimport_size + symbols.unknown2_size);
if (PDB_SIDX_FPO < num_sub_streams)
pdb_file->fpoext_stream = sub_streams[PDB_SIDX_FPO];
files_image = pdb_read_strings(pdb_file);
pdb_process_symbol_imports(pcs, msc_dbg, &symbols, symbols_image, image,

6
dlls/dbghelp/tests/path.c
View file

@ -587,7 +587,7 @@ static BOOL create_test_pdb_ds(const WCHAR* pdb_name, const GUID* guid, DWORD ag
.hash_records_size = 0,
.unknown = 0
};
PDB_STREAM_INDEXES pddt = {0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, };
unsigned short dbi_substream[] = {0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, };
char unknown[] =
{
0xfe, 0xef, 0xfe, 0xef, 0x01, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00,
@ -650,7 +650,7 @@ static BOOL create_test_pdb_ds(const WCHAR* pdb_name, const GUID* guid, DWORD ag
DBI.unknown2_size = stream->size - mark;
mark = stream->size;
pdb_append_to_stream(stream, &pddt, sizeof(pddt));
pdb_append_to_stream(stream, dbi_substream, sizeof(dbi_substream));
DBI.stream_index_size = stream->size - mark;
stream = pdb_add_stream(&pdb, NULL, &IPI, sizeof(IPI)); /* always stream #4 */
@ -658,7 +658,7 @@ static BOOL create_test_pdb_ds(const WCHAR* pdb_name, const GUID* guid, DWORD ag
stream = pdb_add_stream(&pdb, &DBI.global_hash_stream, &GHASH, sizeof(GHASH));
stream = pdb_add_stream(&pdb, &DBI.gsym_stream, NULL, 0);
stream = pdb_add_stream(&pdb, &pddt.sections_stream, &ro_section, sizeof(ro_section));
stream = pdb_add_stream(&pdb, &dbi_substream[PDB_SIDX_SECTIONS], &ro_section, sizeof(ro_section));
hfile = CreateFileW(pdb_name, GENERIC_WRITE, FILE_SHARE_READ, NULL, CREATE_ALWAYS, 0, 0);
ok(hfile != INVALID_HANDLE_VALUE, "failed to create %ls err %lu\n", pdb_name, GetLastError());

25
include/wine/mscvpdb.h
View file

@ -2576,31 +2576,6 @@ enum PDB_STREAM_INDEX
PDB_SIDX_FPOEXT = 9
};
typedef struct
{
unsigned short FPO;
unsigned short unk0;
unsigned short unk1;
unsigned short unk2;
unsigned short unk3;
unsigned short sections_stream;
} PDB_STREAM_INDEXES_OLD;
typedef struct
{
unsigned short FPO;
unsigned short unk0;
unsigned short unk1;
unsigned short unk2;
unsigned short unk3;
unsigned short sections_stream;
unsigned short unk4;
unsigned short unk5;
unsigned short unk6;
unsigned short FPO_EXT;
unsigned short unk7;
} PDB_STREAM_INDEXES;
typedef struct _PDB_FPO_DATA
{
unsigned int start;