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winedump: Dump global hash table out of PDB symbols' stream.
Introduce relevant structures in include/wine/msvcpdb.h. Signed-off-by: Eric Pouech <eric.pouech@gmail.com>
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@ -3182,7 +3182,7 @@ static void pdb_convert_symbols_header(PDB_SYMBOLS* symbols,
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symbols->hash_size = old->hash_size;
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symbols->srcmodule_size = old->srcmodule_size;
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symbols->pdbimport_size = 0;
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symbols->global_file = old->global_file;
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symbols->global_hash_file= old->global_hash_file;
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symbols->public_file = old->public_file;
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symbols->gsym_file = old->gsym_file;
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@ -2535,7 +2535,7 @@ typedef struct _PDB_SYMBOL_IMPORT
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typedef struct _PDB_SYMBOLS_OLD
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{
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unsigned short global_file;
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unsigned short global_hash_file;
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unsigned short public_file;
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unsigned short gsym_file;
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unsigned short pad;
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@ -2550,7 +2550,7 @@ typedef struct _PDB_SYMBOLS
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unsigned int signature;
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unsigned int version;
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unsigned int age;
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unsigned short global_file;
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unsigned short global_hash_file;
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unsigned short flags;
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unsigned short public_file;
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unsigned short bldVer;
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@ -2622,6 +2622,33 @@ PDB_STRING_TABLE;
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* - a serialized hash table
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*/
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/* Header for hash tables inside DBI (aka symbols) stream.
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* - The global hash stream contains only the hash table.
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* - The public stream contains the same layout for its hash table
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* (but other information as well).
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*/
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typedef struct
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{
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unsigned signature;
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unsigned version;
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unsigned size_hash_records;
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unsigned unknown;
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} DBI_HASH_HEADER;
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/* This header is followed by:
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* - DBI_HASH_RECORDS (on hdr:size_hash_records bytes)
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* - a bitmap of DBI_MAX_HASH + 1 entries (on DBI_BITMAP_HASH_SIZE bytes)
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* - a table (one entry per present bit in bitmap) as index into hdr:num_records
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*/
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typedef struct
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{
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unsigned offset;
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unsigned unknown;
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} DBI_HASH_RECORD;
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#define DBI_MAX_HASH 4096
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#define DBI_BITMAP_HASH_SIZE ((DBI_MAX_HASH / (8 * sizeof(unsigned)) + 1) * sizeof(unsigned))
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#include "poppack.h"
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/* ===================================================
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@ -231,6 +231,65 @@ const char* pdb_get_string_table_entry(const PDB_STRING_TABLE* table, unsigned o
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return (char*)(table + 1) + ofs;
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}
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static void dump_dbi_hash_table(const BYTE* root, unsigned size, const char* name, const char* pfx)
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{
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if (size >= sizeof(DBI_HASH_HEADER))
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{
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const DBI_HASH_HEADER* hdr = (const DBI_HASH_HEADER*)root;
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printf("%s%s symbols hash:\n", pfx, name);
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printf("%s\tSignature: 0x%x\n", pfx, hdr->signature);
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printf("%s\tVersion: 0x%x (%u)\n", pfx, hdr->version, hdr->version - 0xeffe0000);
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printf("%s\tSize of hash records: %u\n", pfx, hdr->size_hash_records);
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printf("%s\tUnknown: %u\n", pfx, hdr->unknown);
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if (hdr->signature != 0xFFFFFFFF ||
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hdr->version != 0xeffe0000 + 19990810 ||
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(hdr->size_hash_records % sizeof(DBI_HASH_RECORD)) != 0 ||
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sizeof(DBI_HASH_HEADER) + hdr->size_hash_records + DBI_BITMAP_HASH_SIZE > size ||
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(size - (sizeof(DBI_HASH_HEADER) + hdr->size_hash_records + DBI_BITMAP_HASH_SIZE)) % sizeof(unsigned))
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{
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printf("%s\t\tIncorrect hash structure\n", pfx);
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}
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else
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{
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unsigned i;
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unsigned num_hash_records = hdr->size_hash_records / sizeof(DBI_HASH_RECORD);
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const DBI_HASH_RECORD* hr = (const DBI_HASH_RECORD*)(hdr + 1);
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unsigned* bitmap = (unsigned*)((char*)(hdr + 1) + hdr->size_hash_records);
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unsigned* buckets = (unsigned*)((char*)(hdr + 1) + hdr->size_hash_records + DBI_BITMAP_HASH_SIZE);
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unsigned index, last_index = (size - (sizeof(DBI_HASH_HEADER) + hdr->size_hash_records + DBI_BITMAP_HASH_SIZE)) / sizeof(unsigned);
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/* Yes, offsets for accessiong hr[] are stored as multiple of 12; and not
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* as multiple of sizeof(*hr) = 8 as one might expect.
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* Perhaps, native implementation likes to keep the same offsets between
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* in memory representation vs on file representations.
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*/
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for (index = 0, i = 0; i <= DBI_MAX_HASH; i++)
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{
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if (bitmap[i / 32] & (1u << (i % 32)))
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{
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unsigned j;
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printf("%s\t[%u]\n", pfx, i);
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for (j = buckets[index] / 12; j < (index + 1 < last_index ? buckets[index + 1] / 12 : num_hash_records); j++)
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printf("%s\t\t[%u] offset=%08x unk=%x\n", pfx, j, hr[j].offset - 1, hr[j].unknown);
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index++;
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}
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else
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printf("%s\t[%u] <<empty>>\n", pfx, i);
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}
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/* shouldn't happen */
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if (sizeof(DBI_HASH_HEADER) + hdr->size_hash_records + DBI_BITMAP_HASH_SIZE + index * sizeof(unsigned) > size)
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{
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printf("%s-- left over %u bytes\n", pfx,
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size - (unsigned)(sizeof(DBI_HASH_HEADER) + hdr->size_hash_records + DBI_BITMAP_HASH_SIZE + index * sizeof(unsigned)));
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}
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}
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}
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else
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printf("%sNo header in symbols hash\n", pfx);
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}
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static void dump_global_symbol(struct pdb_reader* reader, unsigned file)
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{
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void* global = NULL;
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@ -241,8 +300,7 @@ static void dump_global_symbol(struct pdb_reader* reader, unsigned file)
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size = pdb_get_file_size(reader, file);
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printf("Global symbols table:\n");
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dump_data(global, size, "\t");
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dump_dbi_hash_table(global, size, "Global", "");
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free(global);
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}
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@ -290,30 +348,30 @@ static void pdb_dump_symbols(struct pdb_reader* reader, PDB_STREAM_INDEXES* sidx
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else
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sprintf(tcver, "old-%x", symbols->flags);
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printf("Symbols:\n"
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"\tsignature: %08x\n"
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"\tversion: %u\n"
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"\tage: %08x\n"
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"\tglobal_file: %u\n"
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"\tbuilder: %s\n"
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"\tpublic_file: %u\n"
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"\tbldVer: %u\n"
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"\tgsym_file: %u\n"
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"\trbldVer: %u\n"
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"\tmodule_size: %08x\n"
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"\toffset_size: %08x\n"
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"\thash_size: %08x\n"
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"\tsrc_module_size: %08x\n"
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"\tpdbimport_size: %08x\n"
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"\tresvd0: %08x\n"
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"\tstream_idx_size: %08x\n"
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"\tunknown2_size: %08x\n"
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"\tresvd3: %04x\n"
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"\tmachine: %s\n"
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"\tresvd4 %08x\n",
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"\tsignature: %08x\n"
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"\tversion: %u\n"
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"\tage: %08x\n"
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"\tglobal_hash_file: %u\n"
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"\tbuilder: %s\n"
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"\tpublic_file: %u\n"
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"\tbldVer: %u\n"
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"\tgsym_file: %u\n"
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"\trbldVer: %u\n"
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"\tmodule_size: %08x\n"
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"\toffset_size: %08x\n"
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"\thash_size: %08x\n"
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"\tsrc_module_size: %08x\n"
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"\tpdbimport_size: %08x\n"
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"\tresvd0: %08x\n"
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"\tstream_idx_size: %08x\n"
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"\tunknown2_size: %08x\n"
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"\tresvd3: %04x\n"
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"\tmachine: %s\n"
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"\tresvd4 %08x\n",
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symbols->signature,
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symbols->version,
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symbols->age,
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symbols->global_file,
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symbols->global_hash_file,
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tcver, /* from symbols->flags */
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symbols->public_file,
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symbols->bldVer,
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@ -610,8 +668,9 @@ static void pdb_dump_symbols(struct pdb_reader* reader, PDB_STREAM_INDEXES* sidx
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file = (char*)((DWORD_PTR)(lib_name + strlen(lib_name) + 1 + 3) & ~3);
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}
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dump_global_symbol(reader, symbols->global_file);
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dump_global_symbol(reader, symbols->global_hash_file);
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dump_public_symbol(reader, symbols->public_file);
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free(symbols);
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free(filesimage);
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}
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