/* Support for generating PDB CodeView debugging files.
- Copyright (C) 2022 Free Software Foundation, Inc.
+ Copyright (C) 2022-2023 Free Software Foundation, Inc.
This file is part of the GNU Binutils.
#include "pdb.h"
#include "bfdlink.h"
#include "ld.h"
+#include "ldmain.h"
#include "ldmisc.h"
#include "libbfd.h"
#include "libiberty.h"
uint32_t address;
};
+struct string
+{
+ struct string *next;
+ uint32_t hash;
+ uint32_t offset;
+ uint32_t source_file_offset;
+ size_t len;
+ char s[];
+};
+
+struct string_table
+{
+ struct string *strings_head;
+ struct string *strings_tail;
+ uint32_t strings_len;
+ htab_t hashmap;
+};
+
+struct mod_source_files
+{
+ uint16_t files_count;
+ struct string **files;
+};
+
+struct source_files_info
+{
+ uint16_t mod_count;
+ struct mod_source_files *mods;
+};
+
+struct type_entry
+{
+ struct type_entry *next;
+ uint32_t index;
+ uint32_t cv_hash;
+ bool has_udt_src_line;
+ uint8_t data[];
+};
+
+struct types
+{
+ htab_t hashmap;
+ uint32_t num_types;
+ struct type_entry *first;
+ struct type_entry *last;
+};
+
+struct global
+{
+ struct global *next;
+ uint32_t offset;
+ uint32_t hash;
+ uint32_t refcount;
+ unsigned int index;
+ uint8_t data[];
+};
+
+struct globals
+{
+ uint32_t num_entries;
+ struct global *first;
+ struct global *last;
+ htab_t hashmap;
+};
+
+struct in_sc
+{
+ asection *s;
+ uint16_t sect_num;
+ uint16_t mod_index;
+};
+
+static const uint32_t crc_table[] =
+{
+ 0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419, 0x706af48f,
+ 0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4, 0xe0d5e91e, 0x97d2d988,
+ 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, 0x90bf1d91, 0x1db71064, 0x6ab020f2,
+ 0xf3b97148, 0x84be41de, 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7,
+ 0x136c9856, 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9,
+ 0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4, 0xa2677172,
+ 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b, 0x35b5a8fa, 0x42b2986c,
+ 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3, 0x45df5c75, 0xdcd60dcf, 0xabd13d59,
+ 0x26d930ac, 0x51de003a, 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423,
+ 0xcfba9599, 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924,
+ 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190, 0x01db7106,
+ 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f, 0x9fbfe4a5, 0xe8b8d433,
+ 0x7807c9a2, 0x0f00f934, 0x9609a88e, 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d,
+ 0x91646c97, 0xe6635c01, 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e,
+ 0x6c0695ed, 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950,
+ 0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, 0xfbd44c65,
+ 0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2, 0x4adfa541, 0x3dd895d7,
+ 0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a, 0x346ed9fc, 0xad678846, 0xda60b8d0,
+ 0x44042d73, 0x33031de5, 0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa,
+ 0xbe0b1010, 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
+ 0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17, 0x2eb40d81,
+ 0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6, 0x03b6e20c, 0x74b1d29a,
+ 0xead54739, 0x9dd277af, 0x04db2615, 0x73dc1683, 0xe3630b12, 0x94643b84,
+ 0x0d6d6a3e, 0x7a6a5aa8, 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1,
+ 0xf00f9344, 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb,
+ 0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a, 0x67dd4acc,
+ 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5, 0xd6d6a3e8, 0xa1d1937e,
+ 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1, 0xa6bc5767, 0x3fb506dd, 0x48b2364b,
+ 0xd80d2bda, 0xaf0a1b4c, 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55,
+ 0x316e8eef, 0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236,
+ 0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe, 0xb2bd0b28,
+ 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31, 0x2cd99e8b, 0x5bdeae1d,
+ 0x9b64c2b0, 0xec63f226, 0x756aa39c, 0x026d930a, 0x9c0906a9, 0xeb0e363f,
+ 0x72076785, 0x05005713, 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38,
+ 0x92d28e9b, 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242,
+ 0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1, 0x18b74777,
+ 0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c, 0x8f659eff, 0xf862ae69,
+ 0x616bffd3, 0x166ccf45, 0xa00ae278, 0xd70dd2ee, 0x4e048354, 0x3903b3c2,
+ 0xa7672661, 0xd06016f7, 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc,
+ 0x40df0b66, 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
+ 0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605, 0xcdd70693,
+ 0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8, 0x5d681b02, 0x2a6f2b94,
+ 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, 0x2d02ef8d
+};
+
/* Add a new stream to the PDB archive, and return its BFD. */
static bfd *
add_stream (bfd *pdb, const char *name, uint16_t *stream_num)
bfd_putl32 (0, buf);
- return bfd_bwrite (buf, sizeof (uint32_t), stream) == sizeof (uint32_t);
+ return bfd_write (buf, sizeof (uint32_t), stream) == sizeof (uint32_t);
}
/* Calculate the hash of a given string. */
bfd_putl16 (bfd_getb16 (&guid[6]), &h.guid[6]);
memcpy (&h.guid[8], &guid[8], 8);
- if (bfd_bwrite (&h, sizeof (h), info_stream) != sizeof (h))
+ if (bfd_write (&h, sizeof (h), info_stream) != sizeof (h))
return false;
/* Write hash list of named streams. This is a "rollover" hash, i.e.
bfd_putl32 (names_length, int_buf);
- if (bfd_bwrite (int_buf, sizeof (uint32_t), info_stream) !=
+ if (bfd_write (int_buf, sizeof (uint32_t), info_stream) !=
sizeof (uint32_t))
goto end;
size_t len = strlen (b->filename) + 1;
- if (bfd_bwrite (b->filename, len, info_stream) != len)
+ if (bfd_write (b->filename, len, info_stream) != len)
goto end;
}
bfd_putl32 (num_entries, int_buf);
- if (bfd_bwrite (int_buf, sizeof (uint32_t), info_stream) !=
+ if (bfd_write (int_buf, sizeof (uint32_t), info_stream) !=
sizeof (uint32_t))
goto end;
bfd_putl32 (num_buckets, int_buf);
- if (bfd_bwrite (int_buf, sizeof (uint32_t), info_stream) !=
+ if (bfd_write (int_buf, sizeof (uint32_t), info_stream) !=
sizeof (uint32_t))
goto end;
bfd_putl32 ((num_buckets + 31) / 32, int_buf);
- if (bfd_bwrite (int_buf, sizeof (uint32_t), info_stream) !=
+ if (bfd_write (int_buf, sizeof (uint32_t), info_stream) !=
sizeof (uint32_t))
goto end;
bfd_putl32 (v, int_buf);
- if (bfd_bwrite (int_buf, sizeof (uint32_t), info_stream) !=
+ if (bfd_write (int_buf, sizeof (uint32_t), info_stream) !=
sizeof (uint32_t))
goto end;
}
bfd_putl32 (0, int_buf);
- if (bfd_bwrite (int_buf, sizeof (uint32_t), info_stream) !=
+ if (bfd_write (int_buf, sizeof (uint32_t), info_stream) !=
sizeof (uint32_t))
goto end;
{
bfd_putl32 (buckets[i]->offset, int_buf);
- if (bfd_bwrite (int_buf, sizeof (uint32_t), info_stream) !=
+ if (bfd_write (int_buf, sizeof (uint32_t), info_stream) !=
sizeof (uint32_t))
goto end;
bfd_putl32 (buckets[i]->value, int_buf);
- if (bfd_bwrite (int_buf, sizeof (uint32_t), info_stream) !=
+ if (bfd_write (int_buf, sizeof (uint32_t), info_stream) !=
sizeof (uint32_t))
goto end;
}
bfd_putl32 (0, int_buf);
- if (bfd_bwrite (int_buf, sizeof (uint32_t), info_stream) !=
+ if (bfd_write (int_buf, sizeof (uint32_t), info_stream) !=
sizeof (uint32_t))
goto end;
bfd_putl32 (PDB_STREAM_VERSION_VC140, int_buf);
- if (bfd_bwrite (int_buf, sizeof (uint32_t), info_stream) !=
+ if (bfd_write (int_buf, sizeof (uint32_t), info_stream) !=
sizeof (uint32_t))
goto end;
return ret;
}
+/* Calculate the CRC32 used for type hashes. */
+static uint32_t
+crc32 (const uint8_t *data, size_t len)
+{
+ uint32_t crc = 0;
+
+ while (len > 0)
+ {
+ crc = (crc >> 8) ^ crc_table[(crc & 0xff) ^ *data];
+
+ data++;
+ len--;
+ }
+
+ return crc;
+}
+
/* Stream 2 is the type information (TPI) stream, and stream 4 is
the ID information (IPI) stream. They differ only in which records
go in which stream. */
static bool
-create_type_stream (bfd *pdb)
+populate_type_stream (bfd *pdb, bfd *stream, struct types *types)
{
- bfd *stream;
struct pdb_tpi_stream_header h;
+ struct type_entry *e;
+ uint32_t len = 0, index_offset_len, off;
+ struct bfd *hash_stream = NULL;
+ uint16_t hash_stream_index;
- stream = add_stream (pdb, NULL, NULL);
- if (!stream)
+ static const uint32_t index_skip = 0x2000;
+
+ e = types->first;
+
+ index_offset_len = 0;
+
+ while (e)
+ {
+ uint32_t old_len = len;
+
+ len += sizeof (uint16_t) + bfd_getl16 (e->data);
+
+ if (old_len == 0 || old_len / index_skip != len / index_skip)
+ index_offset_len += sizeof (uint32_t) * 2;
+
+ e = e->next;
+ }
+
+ /* Each type stream also has a stream which holds the hash value for each
+ type, along with a skip list to speed up searching. */
+
+ hash_stream = add_stream (pdb, "", &hash_stream_index);
+
+ if (!hash_stream)
return false;
bfd_putl32 (TPI_STREAM_VERSION_80, &h.version);
bfd_putl32 (sizeof (h), &h.header_size);
bfd_putl32 (TPI_FIRST_INDEX, &h.type_index_begin);
- bfd_putl32 (TPI_FIRST_INDEX, &h.type_index_end);
- bfd_putl32 (0, &h.type_record_bytes);
- bfd_putl16 (0xffff, &h.hash_stream_index);
+ bfd_putl32 (TPI_FIRST_INDEX + types->num_types, &h.type_index_end);
+ bfd_putl32 (len, &h.type_record_bytes);
+ bfd_putl16 (hash_stream_index, &h.hash_stream_index);
bfd_putl16 (0xffff, &h.hash_aux_stream_index);
- bfd_putl32 (4, &h.hash_key_size);
- bfd_putl32 (0x3ffff, &h.num_hash_buckets);
+ bfd_putl32 (sizeof (uint32_t), &h.hash_key_size);
+ bfd_putl32 (NUM_TPI_HASH_BUCKETS, &h.num_hash_buckets);
bfd_putl32 (0, &h.hash_value_buffer_offset);
- bfd_putl32 (0, &h.hash_value_buffer_length);
- bfd_putl32 (0, &h.index_offset_buffer_offset);
- bfd_putl32 (0, &h.index_offset_buffer_length);
- bfd_putl32 (0, &h.hash_adj_buffer_offset);
+ bfd_putl32 (types->num_types * sizeof (uint32_t),
+ &h.hash_value_buffer_length);
+ bfd_putl32 (types->num_types * sizeof (uint32_t),
+ &h.index_offset_buffer_offset);
+ bfd_putl32 (index_offset_len, &h.index_offset_buffer_length);
+ bfd_putl32 ((types->num_types * sizeof (uint32_t)) + index_offset_len,
+ &h.hash_adj_buffer_offset);
bfd_putl32 (0, &h.hash_adj_buffer_length);
- if (bfd_bwrite (&h, sizeof (h), stream) != sizeof (h))
+ if (bfd_write (&h, sizeof (h), stream) != sizeof (h))
return false;
+ /* Write the type definitions into the main stream, and the hashes
+ into the hash stream. The hashes have already been calculated
+ in handle_type. */
+
+ e = types->first;
+
+ while (e)
+ {
+ uint8_t buf[sizeof (uint32_t)];
+ uint16_t size;
+
+ size = bfd_getl16 (e->data);
+
+ if (bfd_write (e->data, size + sizeof (uint16_t), stream)
+ != size + sizeof (uint16_t))
+ return false;
+
+ bfd_putl32 (e->cv_hash % NUM_TPI_HASH_BUCKETS, buf);
+
+ if (bfd_write (buf, sizeof (uint32_t), hash_stream)
+ != sizeof (uint32_t))
+ return false;
+
+ e = e->next;
+ }
+
+ /* Write the index offsets, i.e. the skip list, into the hash stream. We
+ copy MSVC here by writing a new entry for every 8192 bytes. */
+
+ e = types->first;
+ off = 0;
+
+ while (e)
+ {
+ uint32_t old_off = off;
+ uint16_t size = bfd_getl16 (e->data);
+
+ off += size + sizeof (uint16_t);
+
+ if (old_off == 0 || old_off / index_skip != len / index_skip)
+ {
+ uint8_t buf[sizeof (uint32_t)];
+
+ bfd_putl32 (TPI_FIRST_INDEX + e->index, buf);
+
+ if (bfd_write (buf, sizeof (uint32_t), hash_stream)
+ != sizeof (uint32_t))
+ return false;
+
+ bfd_putl32 (old_off, buf);
+
+ if (bfd_write (buf, sizeof (uint32_t), hash_stream)
+ != sizeof (uint32_t))
+ return false;
+ }
+
+ e = e->next;
+ }
+
return true;
}
static uint16_t
get_arch_number (bfd *abfd)
{
- if (abfd->arch_info->arch != bfd_arch_i386)
- return 0;
+ switch (abfd->arch_info->arch)
+ {
+ case bfd_arch_i386:
+ if (abfd->arch_info->mach & bfd_mach_x86_64)
+ return IMAGE_FILE_MACHINE_AMD64;
+ else
+ return IMAGE_FILE_MACHINE_I386;
- if (abfd->arch_info->mach & bfd_mach_x86_64)
- return IMAGE_FILE_MACHINE_AMD64;
+ case bfd_arch_aarch64:
+ return IMAGE_FILE_MACHINE_ARM64;
- return IMAGE_FILE_MACHINE_I386;
+ default:
+ return 0;
+ }
}
-/* Populate the module stream, which consists of the transformed .debug$S
- data for each object file. */
+/* Validate the DEBUG_S_FILECHKSMS entry within a module's .debug$S
+ section, and copy it to the module's symbol stream. */
static bool
-populate_module_stream (bfd *stream, uint32_t *sym_byte_size)
+copy_filechksms (uint8_t *data, uint32_t size, char *string_table,
+ struct string_table *strings, uint8_t *out,
+ struct mod_source_files *mod_source)
{
- uint8_t int_buf[sizeof (uint32_t)];
+ uint8_t *orig_data = data;
+ uint32_t orig_size = size;
+ uint16_t num_files = 0;
+ struct string **strptr;
- *sym_byte_size = sizeof (uint32_t);
+ bfd_putl32 (DEBUG_S_FILECHKSMS, out);
+ out += sizeof (uint32_t);
- /* Write the signature. */
+ bfd_putl32 (size, out);
+ out += sizeof (uint32_t);
- bfd_putl32 (CV_SIGNATURE_C13, int_buf);
+ /* Calculate the number of files, and check for any overflows. */
- if (bfd_bwrite (int_buf, sizeof (uint32_t), stream) != sizeof (uint32_t))
- return false;
+ while (size > 0)
+ {
+ struct file_checksum *fc = (struct file_checksum *) data;
+ uint8_t padding;
+ size_t len;
- /* Write the global refs size. */
+ if (size < sizeof (struct file_checksum))
+ {
+ bfd_set_error (bfd_error_bad_value);
+ return false;
+ }
- bfd_putl32 (0, int_buf);
+ len = sizeof (struct file_checksum) + fc->checksum_length;
- if (bfd_bwrite (int_buf, sizeof (uint32_t), stream) != sizeof (uint32_t))
- return false;
+ if (size < len)
+ {
+ bfd_set_error (bfd_error_bad_value);
+ return false;
+ }
+
+ data += len;
+ size -= len;
+
+ if (len % sizeof (uint32_t))
+ padding = sizeof (uint32_t) - (len % sizeof (uint32_t));
+ else
+ padding = 0;
+
+ if (size < padding)
+ {
+ bfd_set_error (bfd_error_bad_value);
+ return false;
+ }
+
+ num_files++;
+
+ data += padding;
+ size -= padding;
+ }
+
+ /* Add the files to mod_source, so that they'll appear in the source
+ info substream. */
+
+ strptr = NULL;
+ if (num_files > 0)
+ {
+ uint16_t new_count = num_files + mod_source->files_count;
+
+ mod_source->files = xrealloc (mod_source->files,
+ sizeof (struct string *) * new_count);
+
+ strptr = mod_source->files + mod_source->files_count;
+
+ mod_source->files_count += num_files;
+ }
+
+ /* Actually copy the data. */
+
+ data = orig_data;
+ size = orig_size;
+
+ while (size > 0)
+ {
+ struct file_checksum *fc = (struct file_checksum *) data;
+ uint32_t string_off;
+ uint8_t padding;
+ size_t len;
+ struct string *str = NULL;
+
+ string_off = bfd_getl32 (&fc->file_id);
+ len = sizeof (struct file_checksum) + fc->checksum_length;
+
+ if (len % sizeof (uint32_t))
+ padding = sizeof (uint32_t) - (len % sizeof (uint32_t));
+ else
+ padding = 0;
+
+ /* Remap the "file ID", i.e. the offset in the module's string table,
+ so it points to the right place in the main string table. */
+
+ if (string_table)
+ {
+ char *fn = string_table + string_off;
+ size_t fn_len = strlen (fn);
+ uint32_t hash = calc_hash (fn, fn_len);
+ void **slot;
+
+ slot = htab_find_slot_with_hash (strings->hashmap, fn, hash,
+ NO_INSERT);
+
+ if (slot)
+ str = (struct string *) *slot;
+ }
+
+ *strptr = str;
+ strptr++;
+
+ bfd_putl32 (str ? str->offset : 0, &fc->file_id);
+
+ memcpy (out, data, len + padding);
+
+ data += len + padding;
+ size -= len + padding;
+ out += len + padding;
+ }
return true;
}
-/* Create the module info substream within the DBI. */
+/* Add a string to the strings table, if it's not already there. Returns its
+ offset within the string table. */
+static uint32_t
+add_string (char *str, size_t len, struct string_table *strings)
+{
+ uint32_t hash = calc_hash (str, len);
+ struct string *s;
+ void **slot;
+
+ slot = htab_find_slot_with_hash (strings->hashmap, str, hash, INSERT);
+
+ if (!*slot)
+ {
+ *slot = xmalloc (offsetof (struct string, s) + len);
+
+ s = (struct string *) *slot;
+
+ s->next = NULL;
+ s->hash = hash;
+ s->offset = strings->strings_len;
+ s->source_file_offset = 0xffffffff;
+ s->len = len;
+ memcpy (s->s, str, len);
+
+ if (strings->strings_tail)
+ strings->strings_tail->next = s;
+ else
+ strings->strings_head = s;
+
+ strings->strings_tail = s;
+
+ strings->strings_len += len + 1;
+ }
+ else
+ {
+ s = (struct string *) *slot;
+ }
+
+ return s->offset;
+}
+
+/* Return the hash of an entry in the string table. */
+static hashval_t
+hash_string_table_entry (const void *p)
+{
+ const struct string *s = (const struct string *) p;
+
+ return s->hash;
+}
+
+/* Compare an entry in the string table with a string. */
+static int
+eq_string_table_entry (const void *a, const void *b)
+{
+ const struct string *s1 = (const struct string *) a;
+ const char *s2 = (const char *) b;
+ size_t s2_len = strlen (s2);
+
+ if (s2_len != s1->len)
+ return 0;
+
+ return memcmp (s1->s, s2, s2_len) == 0;
+}
+
+/* Parse the string table within the .debug$S section. */
+static void
+parse_string_table (bfd_byte *data, size_t size,
+ struct string_table *strings)
+{
+ while (true)
+ {
+ size_t len = strnlen ((char *) data, size);
+
+ add_string ((char *) data, len, strings);
+
+ data += len + 1;
+
+ if (size <= len + 1)
+ break;
+
+ size -= len + 1;
+ }
+}
+
+/* Remap a type reference within a CodeView symbol. */
static bool
-create_module_info_substream (bfd *abfd, bfd *pdb, void **data,
- uint32_t *size)
+remap_symbol_type (void *data, struct type_entry **map, uint32_t num_types)
{
- uint8_t *ptr;
+ uint32_t type = bfd_getl32 (data);
- static const char linker_fn[] = "* Linker *";
+ /* Ignore builtin types (those with IDs below 0x1000). */
+ if (type < TPI_FIRST_INDEX)
+ return true;
- *size = 0;
+ if (type >= TPI_FIRST_INDEX + num_types)
+ {
+ einfo (_("%P: CodeView symbol references out of range type %v\n"),
+ type);
+ return false;
+ }
- for (bfd *in = coff_data (abfd)->link_info->input_bfds; in;
- in = in->link.next)
+ type = TPI_FIRST_INDEX + map[type - TPI_FIRST_INDEX]->index;
+ bfd_putl32 (type, data);
+
+ return true;
+}
+
+/* Add an entry into the globals stream. If it already exists, increase
+ the refcount. */
+static bool
+add_globals_ref (struct globals *glob, bfd *sym_rec_stream, const char *name,
+ size_t name_len, uint8_t *data, size_t len)
+{
+ void **slot;
+ uint32_t hash;
+ struct global *g;
+
+ slot = htab_find_slot_with_hash (glob->hashmap, data,
+ iterative_hash (data, len, 0), INSERT);
+
+ if (*slot)
{
- size_t len = sizeof (struct module_info);
+ g = *slot;
+ g->refcount++;
+ return true;
+ }
- if (!strcmp (bfd_get_filename (in), "dll stuff"))
- {
- len += sizeof (linker_fn); /* Object name. */
- len++; /* Empty module name. */
- }
- else if (in->my_archive)
- {
- char *name = lrealpath (bfd_get_filename (in));
+ *slot = xmalloc (offsetof (struct global, data) + len);
- len += strlen (name) + 1; /* Object name. */
+ hash = crc32 ((const uint8_t *) name, name_len);
+ hash %= NUM_GLOBALS_HASH_BUCKETS;
- free (name);
+ g = *slot;
+ g->next = NULL;
+ g->offset = bfd_tell (sym_rec_stream);
+ g->hash = hash;
+ g->refcount = 1;
+ memcpy (g->data, data, len);
- name = lrealpath (bfd_get_filename (in->my_archive));
+ glob->num_entries++;
- len += strlen (name) + 1; /* Archive name. */
+ if (glob->last)
+ glob->last->next = g;
+ else
+ glob->first = g;
- free (name);
- }
- else
- {
- char *name = lrealpath (bfd_get_filename (in));
- size_t name_len = strlen (name) + 1;
+ glob->last = g;
- len += name_len; /* Object name. */
- len += name_len; /* And again as the archive name. */
+ return bfd_write (data, len, sym_rec_stream) == len;
+}
- free (name);
+/* Find the end of the current scope within symbols data. */
+static uint8_t *
+find_end_of_scope (uint8_t *data, uint32_t size)
+{
+ unsigned int scope_level = 1;
+ uint16_t len;
+
+ len = bfd_getl16 (data) + sizeof (uint16_t);
+
+ data += len;
+ size -= len;
+
+ while (true)
+ {
+ uint16_t type;
+
+ if (size < sizeof (uint32_t))
+ return NULL;
+
+ len = bfd_getl16 (data) + sizeof (uint16_t);
+ type = bfd_getl16 (data + sizeof (uint16_t));
+
+ if (size < len)
+ return NULL;
+
+ switch (type)
+ {
+ case S_GPROC32:
+ case S_LPROC32:
+ case S_BLOCK32:
+ case S_INLINESITE:
+ case S_THUNK32:
+ scope_level++;
+ break;
+
+ case S_END:
+ case S_PROC_ID_END:
+ case S_INLINESITE_END:
+ scope_level--;
+
+ if (scope_level == 0)
+ return data;
+
+ break;
}
- if (len % 4)
- len += 4 - (len % 4);
+ data += len;
+ size -= len;
+ }
+}
- *size += len;
+/* Return the size of an extended value parameter, as used in
+ LF_ENUMERATE etc. */
+static unsigned int
+extended_value_len (uint16_t type)
+{
+ switch (type)
+ {
+ case LF_CHAR:
+ return 1;
+
+ case LF_SHORT:
+ case LF_USHORT:
+ return 2;
+
+ case LF_LONG:
+ case LF_ULONG:
+ return 4;
+
+ case LF_QUADWORD:
+ case LF_UQUADWORD:
+ return 8;
}
- *data = xmalloc (*size);
+ return 0;
+}
- ptr = *data;
+/* Parse the symbols in a .debug$S section, and copy them to the module's
+ symbol stream. */
+static bool
+parse_symbols (uint8_t *data, uint32_t size, uint8_t **buf,
+ struct type_entry **map, uint32_t num_types,
+ bfd *sym_rec_stream, struct globals *glob, uint16_t mod_num)
+{
+ uint8_t *orig_buf = *buf;
+ unsigned int scope_level = 0;
+ uint8_t *scope = NULL;
- for (bfd *in = coff_data (abfd)->link_info->input_bfds; in;
- in = in->link.next)
+ while (size >= sizeof (uint16_t))
{
- struct module_info *mod = (struct module_info *) ptr;
- uint16_t stream_num;
- bfd *stream;
- uint32_t sym_byte_size;
- uint8_t *start = ptr;
+ uint16_t len, type;
- stream = add_stream (pdb, NULL, &stream_num);
+ len = bfd_getl16 (data) + sizeof (uint16_t);
- if (!stream)
+ if (len > size)
{
- free (*data);
+ bfd_set_error (bfd_error_bad_value);
return false;
}
- if (!populate_module_stream (stream, &sym_byte_size))
- {
- free (*data);
- return false;
+ type = bfd_getl16 (data + sizeof (uint16_t));
+
+ switch (type)
+ {
+ case S_LDATA32:
+ case S_GDATA32:
+ case S_LTHREAD32:
+ case S_GTHREAD32:
+ {
+ struct datasym *d = (struct datasym *) data;
+ size_t name_len;
+
+ if (len < offsetof (struct datasym, name))
+ {
+ einfo (_("%P: warning: truncated CodeView record"
+ " S_LDATA32/S_GDATA32/S_LTHREAD32/S_GTHREAD32\n"));
+ bfd_set_error (bfd_error_bad_value);
+ return false;
+ }
+
+ if (scope_level == 0)
+ {
+ uint16_t section = bfd_getl16 (&d->section);
+
+ if (section == 0) /* GC'd, ignore */
+ break;
+ }
+
+ name_len =
+ strnlen (d->name, len - offsetof (struct datasym, name));
+
+ if (name_len == len - offsetof (struct datasym, name))
+ {
+ einfo (_("%P: warning: name for S_LDATA32/S_GDATA32/"
+ "S_LTHREAD32/S_GTHREAD32 has no terminating"
+ " zero\n"));
+ bfd_set_error (bfd_error_bad_value);
+ return false;
+ }
+
+ if (!remap_symbol_type (&d->type, map, num_types))
+ {
+ bfd_set_error (bfd_error_bad_value);
+ return false;
+ }
+
+ /* If S_LDATA32 or S_LTHREAD32, copy into module symbols. */
+
+ if (type == S_LDATA32 || type == S_LTHREAD32)
+ {
+ memcpy (*buf, d, len);
+ *buf += len;
+ }
+
+ /* S_LDATA32 and S_LTHREAD32 only go in globals if
+ not in function scope. */
+ if (type == S_GDATA32 || type == S_GTHREAD32 || scope_level == 0)
+ {
+ if (!add_globals_ref (glob, sym_rec_stream, d->name,
+ name_len, data, len))
+ return false;
+ }
+
+ break;
+ }
+
+ case S_GPROC32:
+ case S_LPROC32:
+ case S_GPROC32_ID:
+ case S_LPROC32_ID:
+ {
+ struct procsym *proc = (struct procsym *) data;
+ size_t name_len;
+ uint16_t section;
+ uint32_t end;
+ uint8_t *endptr;
+ size_t ref_size, padding;
+ struct refsym *ref;
+
+ if (len < offsetof (struct procsym, name))
+ {
+ einfo (_("%P: warning: truncated CodeView record"
+ " S_GPROC32/S_LPROC32\n"));
+ bfd_set_error (bfd_error_bad_value);
+ return false;
+ }
+
+ section = bfd_getl16 (&proc->section);
+
+ endptr = find_end_of_scope (data, size);
+
+ if (!endptr)
+ {
+ einfo (_("%P: warning: could not find end of"
+ " S_GPROC32/S_LPROC32 record\n"));
+ bfd_set_error (bfd_error_bad_value);
+ return false;
+ }
+
+ if (section == 0) /* skip if GC'd */
+ {
+ /* Skip to after S_END. */
+
+ size -= endptr - data;
+ data = endptr;
+
+ len = bfd_getl16 (data) + sizeof (uint16_t);
+
+ data += len;
+ size -= len;
+
+ continue;
+ }
+
+ name_len =
+ strnlen (proc->name, len - offsetof (struct procsym, name));
+
+ if (name_len == len - offsetof (struct procsym, name))
+ {
+ einfo (_("%P: warning: name for S_GPROC32/S_LPROC32 has no"
+ " terminating zero\n"));
+ bfd_set_error (bfd_error_bad_value);
+ return false;
+ }
+
+ if (type == S_GPROC32_ID || type == S_LPROC32_ID)
+ {
+ /* Transform into S_GPROC32 / S_LPROC32. */
+
+ uint32_t t_idx = bfd_getl32 (&proc->type);
+ struct type_entry *t;
+ uint16_t t_type;
+
+ if (t_idx < TPI_FIRST_INDEX
+ || t_idx >= TPI_FIRST_INDEX + num_types)
+ {
+ einfo (_("%P: CodeView symbol references out of range"
+ " type %v\n"), type);
+ bfd_set_error (bfd_error_bad_value);
+ return false;
+ }
+
+ t = map[t_idx - TPI_FIRST_INDEX];
+
+ t_type = bfd_getl16 (t->data + sizeof (uint16_t));
+
+ switch (t_type)
+ {
+ case LF_FUNC_ID:
+ {
+ struct lf_func_id *t_data =
+ (struct lf_func_id *) t->data;
+
+ /* Replace proc->type with function type. */
+
+ memcpy (&proc->type, &t_data->function_type,
+ sizeof (uint32_t));
+
+ break;
+ }
+
+ case LF_MFUNC_ID:
+ {
+ struct lf_mfunc_id *t_data =
+ (struct lf_mfunc_id *) t->data;
+
+ /* Replace proc->type with function type. */
+
+ memcpy (&proc->type, &t_data->function_type,
+ sizeof (uint32_t));
+
+ break;
+ }
+
+ default:
+ einfo (_("%P: CodeView S_GPROC32_ID/S_LPROC32_ID symbol"
+ " referenced unknown type as ID\n"));
+ bfd_set_error (bfd_error_bad_value);
+ return false;
+ }
+
+ /* Change record type. */
+
+ if (type == S_GPROC32_ID)
+ bfd_putl32 (S_GPROC32, &proc->kind);
+ else
+ bfd_putl32 (S_LPROC32, &proc->kind);
+ }
+ else
+ {
+ if (!remap_symbol_type (&proc->type, map, num_types))
+ {
+ bfd_set_error (bfd_error_bad_value);
+ return false;
+ }
+ }
+
+ end = *buf - orig_buf + sizeof (uint32_t) + endptr - data;
+ bfd_putl32 (end, &proc->end);
+
+ /* Add S_PROCREF / S_LPROCREF to globals stream. */
+
+ ref_size = offsetof (struct refsym, name) + name_len + 1;
+
+ if (ref_size % sizeof (uint32_t))
+ padding = sizeof (uint32_t) - (ref_size % sizeof (uint32_t));
+ else
+ padding = 0;
+
+ ref = xmalloc (ref_size + padding);
+
+ bfd_putl16 (ref_size + padding - sizeof (uint16_t), &ref->size);
+ bfd_putl16 (type == S_GPROC32 || type == S_GPROC32_ID ?
+ S_PROCREF : S_LPROCREF, &ref->kind);
+ bfd_putl32 (0, &ref->sum_name);
+ bfd_putl32 (*buf - orig_buf + sizeof (uint32_t),
+ &ref->symbol_offset);
+ bfd_putl16 (mod_num + 1, &ref->mod);
+
+ memcpy (ref->name, proc->name, name_len + 1);
+
+ memset (ref->name + name_len + 1, 0, padding);
+
+ if (!add_globals_ref (glob, sym_rec_stream, proc->name, name_len,
+ (uint8_t *) ref, ref_size + padding))
+ {
+ free (ref);
+ return false;
+ }
+
+ free (ref);
+
+ scope = *buf;
+
+ memcpy (*buf, proc, len);
+ *buf += len;
+
+ scope_level++;
+
+ break;
+ }
+
+ case S_UDT:
+ {
+ struct udtsym *udt = (struct udtsym *) data;
+ size_t name_len;
+
+ if (len < offsetof (struct udtsym, name))
+ {
+ einfo (_("%P: warning: truncated CodeView record"
+ " S_UDT\n"));
+ bfd_set_error (bfd_error_bad_value);
+ return false;
+ }
+
+ name_len =
+ strnlen (udt->name, len - offsetof (struct udtsym, name));
+
+ if (name_len == len - offsetof (struct udtsym, name))
+ {
+ einfo (_("%P: warning: name for S_UDT has no"
+ " terminating zero\n"));
+ bfd_set_error (bfd_error_bad_value);
+ return false;
+ }
+
+ if (!remap_symbol_type (&udt->type, map, num_types))
+ {
+ bfd_set_error (bfd_error_bad_value);
+ return false;
+ }
+
+ /* S_UDT goes in the symbols stream if within a procedure,
+ otherwise it goes in the globals stream. */
+ if (scope_level == 0)
+ {
+ if (!add_globals_ref (glob, sym_rec_stream, udt->name,
+ name_len, data, len))
+ return false;
+ }
+ else
+ {
+ memcpy (*buf, udt, len);
+ *buf += len;
+ }
+
+ break;
+ }
+
+ case S_CONSTANT:
+ {
+ struct constsym *c = (struct constsym *) data;
+ size_t name_len, rec_size;
+ uint16_t val;
+
+ if (len < offsetof (struct constsym, name))
+ {
+ einfo (_("%P: warning: truncated CodeView record"
+ " S_CONSTANT\n"));
+ bfd_set_error (bfd_error_bad_value);
+ return false;
+ }
+
+ rec_size = offsetof (struct constsym, name);
+
+ val = bfd_getl16 (&c->value);
+
+ /* If val >= 0x8000, actual value follows. */
+ if (val >= 0x8000)
+ {
+ unsigned int param_len = extended_value_len (val);
+
+ if (param_len == 0)
+ {
+ einfo (_("%P: warning: unhandled type %v within"
+ " S_CONSTANT\n"), val);
+ bfd_set_error (bfd_error_bad_value);
+ return false;
+ }
+
+ rec_size += param_len;
+ }
+
+ name_len =
+ strnlen ((const char *) data + rec_size, len - rec_size);
+
+ if (name_len == len - rec_size)
+ {
+ einfo (_("%P: warning: name for S_CONSTANT has no"
+ " terminating zero\n"));
+ bfd_set_error (bfd_error_bad_value);
+ return false;
+ }
+
+ if (!remap_symbol_type (&c->type, map, num_types))
+ {
+ bfd_set_error (bfd_error_bad_value);
+ return false;
+ }
+
+ if (!add_globals_ref (glob, sym_rec_stream,
+ (const char *) data + rec_size, name_len,
+ data, len))
+ return false;
+
+ break;
+ }
+
+ case S_END:
+ case S_INLINESITE_END:
+ case S_PROC_ID_END:
+ memcpy (*buf, data, len);
+
+ if (type == S_PROC_ID_END) /* transform to S_END */
+ bfd_putl16 (S_END, *buf + sizeof (uint16_t));
+
+ /* Reset scope variable back to the address of the previous
+ scope start. */
+ if (scope)
+ {
+ uint32_t parent;
+ uint16_t scope_start_type =
+ bfd_getl16 (scope + sizeof (uint16_t));
+
+ switch (scope_start_type)
+ {
+ case S_GPROC32:
+ case S_LPROC32:
+ parent = bfd_getl32 (scope + offsetof (struct procsym,
+ parent));
+ break;
+
+ case S_BLOCK32:
+ parent = bfd_getl32 (scope + offsetof (struct blocksym,
+ parent));
+ break;
+
+ case S_INLINESITE:
+ parent = bfd_getl32 (scope + offsetof (struct inline_site,
+ parent));
+ break;
+
+ case S_THUNK32:
+ parent = bfd_getl32 (scope + offsetof (struct thunk,
+ parent));
+ break;
+
+ default:
+ einfo (_("%P: warning: unexpected CodeView scope start"
+ " record %v\n"), scope_start_type);
+ bfd_set_error (bfd_error_bad_value);
+ return false;
+ }
+
+ if (parent == 0)
+ scope = NULL;
+ else
+ scope = orig_buf + parent - sizeof (uint32_t);
+ }
+
+ *buf += len;
+ scope_level--;
+ break;
+
+ case S_BUILDINFO:
+ {
+ struct buildinfosym *bi = (struct buildinfosym *) data;
+
+ if (len < sizeof (struct buildinfosym))
+ {
+ einfo (_("%P: warning: truncated CodeView record"
+ " S_BUILDINFO\n"));
+ bfd_set_error (bfd_error_bad_value);
+ return false;
+ }
+
+ if (!remap_symbol_type (&bi->type, map, num_types))
+ {
+ bfd_set_error (bfd_error_bad_value);
+ return false;
+ }
+
+ memcpy (*buf, data, len);
+ *buf += len;
+
+ break;
+ }
+
+ case S_BLOCK32:
+ {
+ struct blocksym *bl = (struct blocksym *) data;
+ uint8_t *endptr;
+ uint32_t end;
+
+ if (len < offsetof (struct blocksym, name))
+ {
+ einfo (_("%P: warning: truncated CodeView record"
+ " S_BLOCK32\n"));
+ bfd_set_error (bfd_error_bad_value);
+ return false;
+ }
+
+ bfd_putl32 (scope - orig_buf + sizeof (uint32_t), &bl->parent);
+
+ endptr = find_end_of_scope (data, size);
+
+ if (!endptr)
+ {
+ einfo (_("%P: warning: could not find end of"
+ " S_BLOCK32 record\n"));
+ bfd_set_error (bfd_error_bad_value);
+ return false;
+ }
+
+ end = *buf - orig_buf + sizeof (uint32_t) + endptr - data;
+ bfd_putl32 (end, &bl->end);
+
+ scope = *buf;
+
+ memcpy (*buf, data, len);
+ *buf += len;
+
+ scope_level++;
+
+ break;
+ }
+
+ case S_BPREL32:
+ {
+ struct bprelsym *bp = (struct bprelsym *) data;
+
+ if (len < offsetof (struct bprelsym, name))
+ {
+ einfo (_("%P: warning: truncated CodeView record"
+ " S_BPREL32\n"));
+ bfd_set_error (bfd_error_bad_value);
+ return false;
+ }
+
+ if (!remap_symbol_type (&bp->type, map, num_types))
+ {
+ bfd_set_error (bfd_error_bad_value);
+ return false;
+ }
+
+ memcpy (*buf, data, len);
+ *buf += len;
+
+ break;
+ }
+
+ case S_REGISTER:
+ {
+ struct regsym *reg = (struct regsym *) data;
+
+ if (len < offsetof (struct regsym, name))
+ {
+ einfo (_("%P: warning: truncated CodeView record"
+ " S_REGISTER\n"));
+ bfd_set_error (bfd_error_bad_value);
+ return false;
+ }
+
+ if (!remap_symbol_type (®->type, map, num_types))
+ {
+ bfd_set_error (bfd_error_bad_value);
+ return false;
+ }
+
+ memcpy (*buf, data, len);
+ *buf += len;
+
+ break;
+ }
+
+ case S_REGREL32:
+ {
+ struct regrel *rr = (struct regrel *) data;
+
+ if (len < offsetof (struct regrel, name))
+ {
+ einfo (_("%P: warning: truncated CodeView record"
+ " S_REGREL32\n"));
+ bfd_set_error (bfd_error_bad_value);
+ return false;
+ }
+
+ if (!remap_symbol_type (&rr->type, map, num_types))
+ {
+ bfd_set_error (bfd_error_bad_value);
+ return false;
+ }
+
+ memcpy (*buf, data, len);
+ *buf += len;
+
+ break;
+ }
+
+ case S_LOCAL:
+ {
+ struct localsym *l = (struct localsym *) data;
+
+ if (len < offsetof (struct localsym, name))
+ {
+ einfo (_("%P: warning: truncated CodeView record"
+ " S_LOCAL\n"));
+ bfd_set_error (bfd_error_bad_value);
+ return false;
+ }
+
+ if (!remap_symbol_type (&l->type, map, num_types))
+ {
+ bfd_set_error (bfd_error_bad_value);
+ return false;
+ }
+
+ memcpy (*buf, data, len);
+ *buf += len;
+
+ break;
+ }
+
+ case S_INLINESITE:
+ {
+ struct inline_site *is = (struct inline_site *) data;
+ uint8_t *endptr;
+ uint32_t end;
+
+ if (len < offsetof (struct inline_site, binary_annotations))
+ {
+ einfo (_("%P: warning: truncated CodeView record"
+ " S_INLINESITE\n"));
+ bfd_set_error (bfd_error_bad_value);
+ return false;
+ }
+
+ bfd_putl32 (scope - orig_buf + sizeof (uint32_t), &is->parent);
+
+ endptr = find_end_of_scope (data, size);
+
+ if (!endptr)
+ {
+ einfo (_("%P: warning: could not find end of"
+ " S_INLINESITE record\n"));
+ bfd_set_error (bfd_error_bad_value);
+ return false;
+ }
+
+ end = *buf - orig_buf + sizeof (uint32_t) + endptr - data;
+ bfd_putl32 (end, &is->end);
+
+ if (!remap_symbol_type (&is->inlinee, map, num_types))
+ {
+ bfd_set_error (bfd_error_bad_value);
+ return false;
+ }
+
+ scope = *buf;
+
+ memcpy (*buf, data, len);
+ *buf += len;
+
+ scope_level++;
+
+ break;
+ }
+
+ case S_THUNK32:
+ {
+ struct thunk *th = (struct thunk *) data;
+ uint8_t *endptr;
+ uint32_t end;
+
+ if (len < offsetof (struct thunk, name))
+ {
+ einfo (_("%P: warning: truncated CodeView record"
+ " S_THUNK32\n"));
+ bfd_set_error (bfd_error_bad_value);
+ return false;
+ }
+
+ bfd_putl32 (scope - orig_buf + sizeof (uint32_t), &th->parent);
+
+ endptr = find_end_of_scope (data, size);
+
+ if (!endptr)
+ {
+ einfo (_("%P: warning: could not find end of"
+ " S_THUNK32 record\n"));
+ bfd_set_error (bfd_error_bad_value);
+ return false;
+ }
+
+ end = *buf - orig_buf + sizeof (uint32_t) + endptr - data;
+ bfd_putl32 (end, &th->end);
+
+ scope = *buf;
+
+ memcpy (*buf, data, len);
+ *buf += len;
+
+ scope_level++;
+
+ break;
+ }
+
+ case S_HEAPALLOCSITE:
+ {
+ struct heap_alloc_site *has = (struct heap_alloc_site *) data;
+
+ if (len < sizeof (struct heap_alloc_site))
+ {
+ einfo (_("%P: warning: truncated CodeView record"
+ " S_HEAPALLOCSITE\n"));
+ bfd_set_error (bfd_error_bad_value);
+ return false;
+ }
+
+ if (!remap_symbol_type (&has->type, map, num_types))
+ {
+ bfd_set_error (bfd_error_bad_value);
+ return false;
+ }
+
+ memcpy (*buf, data, len);
+ *buf += len;
+
+ break;
+ }
+
+ case S_OBJNAME: /* just copy */
+ case S_COMPILE3:
+ case S_UNAMESPACE:
+ case S_FRAMEPROC:
+ case S_FRAMECOOKIE:
+ case S_LABEL32:
+ case S_DEFRANGE_REGISTER_REL:
+ case S_DEFRANGE_FRAMEPOINTER_REL:
+ case S_DEFRANGE_SUBFIELD_REGISTER:
+ case S_DEFRANGE_FRAMEPOINTER_REL_FULL_SCOPE:
+ case S_DEFRANGE_REGISTER:
+ memcpy (*buf, data, len);
+ *buf += len;
+ break;
+
+ default:
+ einfo (_("%P: warning: unrecognized CodeView record %v\n"), type);
+ bfd_set_error (bfd_error_bad_value);
+ return false;
+ }
+
+ data += len;
+ size -= len;
+ }
+
+ return true;
+}
+
+/* For a given symbol subsection, work out how much space to allocate in the
+ result module stream. This is different because we don't copy certain
+ symbols, such as S_CONSTANT, and we skip over any procedures or data that
+ have been GC'd out. */
+static bool
+calculate_symbols_size (uint8_t *data, uint32_t size, uint32_t *sym_size)
+{
+ unsigned int scope_level = 0;
+
+ while (size >= sizeof (uint32_t))
+ {
+ uint16_t len = bfd_getl16 (data) + sizeof (uint16_t);
+ uint16_t type = bfd_getl16 (data + sizeof (uint16_t));
+
+ switch (type)
+ {
+ case S_LDATA32:
+ case S_LTHREAD32:
+ {
+ struct datasym *d = (struct datasym *) data;
+ uint16_t section;
+
+ if (len < offsetof (struct datasym, name))
+ {
+ einfo (_("%P: warning: truncated CodeView record"
+ " S_LDATA32/S_LTHREAD32\n"));
+ return false;
+ }
+
+ section = bfd_getl16 (&d->section);
+
+ /* copy if not GC'd or within function */
+ if (scope_level != 0 || section != 0)
+ *sym_size += len;
+ }
+
+ case S_GDATA32:
+ case S_GTHREAD32:
+ case S_CONSTANT:
+ /* Not copied into symbols stream. */
+ break;
+
+ case S_GPROC32:
+ case S_LPROC32:
+ case S_GPROC32_ID:
+ case S_LPROC32_ID:
+ {
+ struct procsym *proc = (struct procsym *) data;
+ uint16_t section;
+
+ if (len < offsetof (struct procsym, name))
+ {
+ einfo (_("%P: warning: truncated CodeView record"
+ " S_GPROC32/S_LPROC32\n"));
+ return false;
+ }
+
+ section = bfd_getl16 (&proc->section);
+
+ if (section != 0)
+ {
+ *sym_size += len;
+ }
+ else
+ {
+ uint8_t *endptr = find_end_of_scope (data, size);
+
+ if (!endptr)
+ {
+ einfo (_("%P: warning: could not find end of"
+ " S_GPROC32/S_LPROC32 record\n"));
+ return false;
+ }
+
+ /* Skip to after S_END. */
+
+ size -= endptr - data;
+ data = endptr;
+
+ len = bfd_getl16 (data) + sizeof (uint16_t);
+
+ data += len;
+ size -= len;
+
+ continue;
+ }
+
+ scope_level++;
+
+ break;
+ }
+
+ case S_UDT:
+ if (scope_level != 0) /* only goes in symbols if local */
+ *sym_size += len;
+ break;
+
+ case S_BLOCK32: /* always copied */
+ case S_INLINESITE:
+ case S_THUNK32:
+ *sym_size += len;
+ scope_level++;
+ break;
+
+ case S_END: /* always copied */
+ case S_PROC_ID_END:
+ case S_INLINESITE_END:
+ *sym_size += len;
+ scope_level--;
+ break;
+
+ case S_OBJNAME: /* always copied */
+ case S_COMPILE3:
+ case S_UNAMESPACE:
+ case S_FRAMEPROC:
+ case S_FRAMECOOKIE:
+ case S_LABEL32:
+ case S_BUILDINFO:
+ case S_BPREL32:
+ case S_REGISTER:
+ case S_REGREL32:
+ case S_LOCAL:
+ case S_DEFRANGE_REGISTER_REL:
+ case S_DEFRANGE_FRAMEPOINTER_REL:
+ case S_DEFRANGE_SUBFIELD_REGISTER:
+ case S_DEFRANGE_FRAMEPOINTER_REL_FULL_SCOPE:
+ case S_DEFRANGE_REGISTER:
+ case S_HEAPALLOCSITE:
+ *sym_size += len;
+ break;
+
+ default:
+ einfo (_("%P: warning: unrecognized CodeView record %v\n"), type);
+ return false;
+ }
+
+ data += len;
+ size -= len;
+ }
+
+ return true;
+}
+
+/* Parse the .debug$S section within an object file. */
+static bool
+handle_debugs_section (asection *s, bfd *mod, struct string_table *strings,
+ uint8_t **dataptr, uint32_t *sizeptr,
+ struct mod_source_files *mod_source,
+ bfd *abfd, uint8_t **syms, uint32_t *sym_byte_size,
+ struct type_entry **map, uint32_t num_types,
+ bfd *sym_rec_stream, struct globals *glob,
+ uint16_t mod_num)
+{
+ bfd_byte *data = NULL;
+ size_t off;
+ uint32_t c13_size = 0;
+ char *string_table = NULL;
+ uint8_t *buf, *bufptr, *symbuf, *symbufptr;
+ uint32_t sym_size = 0;
+
+ if (!bfd_get_full_section_contents (mod, s, &data))
+ return false;
+
+ if (!data)
+ return false;
+
+ /* Resolve relocations. Addresses are stored within the .debug$S section as
+ a .secidx, .secrel32 pair. */
+
+ if (s->flags & SEC_RELOC)
+ {
+ struct internal_reloc *relocs;
+ struct internal_syment *symbols;
+ asection **sectlist;
+ unsigned int syment_count;
+ int sect_num;
+ struct external_syment *ext;
+
+ syment_count = obj_raw_syment_count (mod);
+
+ relocs =
+ _bfd_coff_read_internal_relocs (mod, s, false, NULL, true, NULL);
+
+ symbols = xmalloc (sizeof (struct internal_syment) * syment_count);
+ sectlist = xmalloc (sizeof (asection *) * syment_count);
+
+ ext = (struct external_syment *) (coff_data (mod)->external_syms);
+
+ for (unsigned int i = 0; i < syment_count; i++)
+ {
+ bfd_coff_swap_sym_in (mod, &ext[i], &symbols[i]);
+ }
+
+ sect_num = 1;
+
+ for (asection *sect = mod->sections; sect; sect = sect->next)
+ {
+ for (unsigned int i = 0; i < syment_count; i++)
+ {
+ if (symbols[i].n_scnum == sect_num)
+ sectlist[i] = sect;
+ }
+
+ sect_num++;
+ }
+
+ if (!bfd_coff_relocate_section (abfd, coff_data (abfd)->link_info, mod,
+ s, data, relocs, symbols, sectlist))
+ {
+ free (sectlist);
+ free (symbols);
+ free (data);
+ return false;
+ }
+
+ free (sectlist);
+ free (symbols);
+ }
+
+ if (bfd_getl32 (data) != CV_SIGNATURE_C13)
+ {
+ free (data);
+ return true;
+ }
+
+ off = sizeof (uint32_t);
+
+ /* calculate size */
+
+ while (off + sizeof (uint32_t) <= s->size)
+ {
+ uint32_t type, size;
+
+ type = bfd_getl32 (data + off);
+
+ off += sizeof (uint32_t);
+
+ if (off + sizeof (uint32_t) > s->size)
+ {
+ free (data);
+ bfd_set_error (bfd_error_bad_value);
+ return false;
+ }
+
+ size = bfd_getl32 (data + off);
+
+ off += sizeof (uint32_t);
+
+ if (off + size > s->size)
+ {
+ free (data);
+ bfd_set_error (bfd_error_bad_value);
+ return false;
+ }
+
+ switch (type)
+ {
+ case DEBUG_S_FILECHKSMS:
+ c13_size += sizeof (uint32_t) + sizeof (uint32_t) + size;
+
+ if (c13_size % sizeof (uint32_t))
+ c13_size += sizeof (uint32_t) - (c13_size % sizeof (uint32_t));
+
+ break;
+
+ case DEBUG_S_STRINGTABLE:
+ parse_string_table (data + off, size, strings);
+
+ string_table = (char *) data + off;
+
+ break;
+
+ case DEBUG_S_LINES:
+ {
+ uint16_t sect;
+
+ if (size < sizeof (uint32_t) + sizeof (uint16_t))
+ {
+ free (data);
+ bfd_set_error (bfd_error_bad_value);
+ return false;
+ }
+
+ sect = bfd_getl16 (data + off + sizeof (uint32_t));
+
+ /* Skip GC'd symbols. */
+ if (sect != 0)
+ {
+ c13_size += sizeof (uint32_t) + sizeof (uint32_t) + size;
+
+ if (c13_size % sizeof (uint32_t))
+ c13_size +=
+ sizeof (uint32_t) - (c13_size % sizeof (uint32_t));
+ }
+
+ break;
+ }
+
+ case DEBUG_S_SYMBOLS:
+ if (!calculate_symbols_size (data + off, size, &sym_size))
+ {
+ free (data);
+ bfd_set_error (bfd_error_bad_value);
+ return false;
+ }
+
+ break;
+ }
+
+ off += size;
+
+ if (off % sizeof (uint32_t))
+ off += sizeof (uint32_t) - (off % sizeof (uint32_t));
+ }
+
+ if (sym_size % sizeof (uint32_t))
+ sym_size += sizeof (uint32_t) - (sym_size % sizeof (uint32_t));
+
+ if (c13_size == 0 && sym_size == 0)
+ {
+ free (data);
+ return true;
+ }
+
+ /* copy data */
+
+ buf = NULL;
+ if (c13_size != 0)
+ buf = xmalloc (c13_size);
+ bufptr = buf;
+
+ symbuf = NULL;
+ if (sym_size != 0)
+ symbuf = xmalloc (sym_size);
+ symbufptr = symbuf;
+
+ off = sizeof (uint32_t);
+
+ while (off + sizeof (uint32_t) <= s->size)
+ {
+ uint32_t type, size;
+
+ type = bfd_getl32 (data + off);
+ off += sizeof (uint32_t);
+
+ size = bfd_getl32 (data + off);
+ off += sizeof (uint32_t);
+
+ switch (type)
+ {
+ case DEBUG_S_FILECHKSMS:
+ if (!copy_filechksms (data + off, size, string_table,
+ strings, bufptr, mod_source))
+ {
+ free (data);
+ free (symbuf);
+ return false;
+ }
+
+ bufptr += sizeof (uint32_t) + sizeof (uint32_t) + size;
+
+ break;
+
+ case DEBUG_S_LINES:
+ {
+ uint16_t sect;
+
+ sect = bfd_getl16 (data + off + sizeof (uint32_t));
+
+ /* Skip if GC'd. */
+ if (sect != 0)
+ {
+ bfd_putl32 (type, bufptr);
+ bufptr += sizeof (uint32_t);
+
+ bfd_putl32 (size, bufptr);
+ bufptr += sizeof (uint32_t);
+
+ memcpy (bufptr, data + off, size);
+ bufptr += size;
+ }
+
+ break;
+ }
+
+ case DEBUG_S_SYMBOLS:
+ if (!parse_symbols (data + off, size, &symbufptr, map, num_types,
+ sym_rec_stream, glob, mod_num))
+ {
+ free (data);
+ free (symbuf);
+ return false;
+ }
+
+ break;
+ }
+
+ off += size;
+
+ if (off % sizeof (uint32_t))
+ off += sizeof (uint32_t) - (off % sizeof (uint32_t));
+ }
+
+ free (data);
+
+ if (buf)
+ {
+ if (*dataptr)
+ {
+ /* Append the C13 info to what's already there, if the module has
+ multiple .debug$S sections. */
+
+ *dataptr = xrealloc (*dataptr, *sizeptr + c13_size);
+ memcpy (*dataptr + *sizeptr, buf, c13_size);
+
+ free (buf);
+ }
+ else
+ {
+ *dataptr = buf;
+ }
+
+ *sizeptr += c13_size;
+ }
+
+ if (symbuf)
+ {
+ if (*syms)
+ {
+ *syms = xrealloc (*syms, *sym_byte_size + sym_size);
+ memcpy (*syms + *sym_byte_size, symbuf, sym_size);
+
+ free (symbuf);
+ }
+ else
+ {
+ *syms = symbuf;
+ }
+
+ *sym_byte_size += sym_size;
+ }
+
+ return true;
+}
+
+/* Remap the type number stored in data from the per-module numbering to
+ that of the deduplicated output list. */
+static bool
+remap_type (void *data, struct type_entry **map,
+ uint32_t type_num, uint32_t num_types)
+{
+ uint32_t type = bfd_getl32 (data);
+
+ /* Ignore builtin types (those with IDs below 0x1000). */
+ if (type < TPI_FIRST_INDEX)
+ return true;
+
+ if (type >= TPI_FIRST_INDEX + type_num)
+ {
+ einfo (_("%P: CodeView type %v references other type %v not yet "
+ "declared\n"), TPI_FIRST_INDEX + type_num, type);
+ return false;
+ }
+
+ if (type >= TPI_FIRST_INDEX + num_types)
+ {
+ einfo (_("%P: CodeView type %v references out of range type %v\n"),
+ TPI_FIRST_INDEX + type_num, type);
+ return false;
+ }
+
+ type = TPI_FIRST_INDEX + map[type - TPI_FIRST_INDEX]->index;
+ bfd_putl32 (type, data);
+
+ return true;
+}
+
+/* Determines whether the name of a struct, class, or union counts as
+ "anonymous". Non-anonymous types have a hash based on just the name,
+ rather than the whole structure. */
+static bool
+is_name_anonymous (char *name, size_t len)
+{
+ static const char tag1[] = "<unnamed-tag>";
+ static const char tag2[] = "__unnamed";
+ static const char tag3[] = "::<unnamed-tag>";
+ static const char tag4[] = "::__unnamed";
+
+ if (len == sizeof (tag1) - 1 && !memcmp (name, tag1, sizeof (tag1) - 1))
+ return true;
+
+ if (len == sizeof (tag2) - 1 && !memcmp (name, tag2, sizeof (tag2) - 1))
+ return true;
+
+ if (len >= sizeof (tag3) - 1
+ && !memcmp (name + len - sizeof (tag3) + 1, tag3, sizeof (tag3) - 1))
+ return true;
+
+ if (len >= sizeof (tag4) - 1
+ && !memcmp (name + len - sizeof (tag4) + 1, tag4, sizeof (tag4) - 1))
+ return true;
+
+ return false;
+}
+
+/* Handle LF_UDT_SRC_LINE type entries, which are a special case. These
+ give the source file and line number for each user-defined type that is
+ declared. We parse these and emit instead an LF_UDT_MOD_SRC_LINE entry,
+ which also includes the module number. */
+static bool
+handle_udt_src_line (uint8_t *data, uint16_t size, struct type_entry **map,
+ uint32_t type_num, uint32_t num_types,
+ struct types *ids, uint16_t mod_num,
+ struct string_table *strings)
+{
+ struct lf_udt_src_line *usl = (struct lf_udt_src_line *) data;
+ uint32_t orig_type, source_file_type;
+ void **slot;
+ hashval_t hash;
+ struct type_entry *e, *type_e, *str_e;
+ struct lf_udt_mod_src_line *umsl;
+ struct lf_string_id *str;
+ uint32_t source_file_offset;
+
+ if (size < sizeof (struct lf_udt_src_line))
+ {
+ einfo (_("%P: warning: truncated CodeView type record"
+ " LF_UDT_SRC_LINE\n"));
+ return false;
+ }
+
+ /* Check if LF_UDT_MOD_SRC_LINE already present for type, and return. */
+
+ orig_type = bfd_getl32 (&usl->type);
+
+ if (orig_type < TPI_FIRST_INDEX ||
+ orig_type >= TPI_FIRST_INDEX + num_types ||
+ !map[orig_type - TPI_FIRST_INDEX])
+ {
+ einfo (_("%P: warning: CodeView type record LF_UDT_SRC_LINE"
+ " referred to unknown type %v\n"), orig_type);
+ return false;
+ }
+
+ type_e = map[orig_type - TPI_FIRST_INDEX];
+
+ /* Skip if type already declared in other module. */
+ if (type_e->has_udt_src_line)
+ return true;
+
+ if (!remap_type (&usl->type, map, type_num, num_types))
+ return false;
+
+ /* Extract string from source_file_type. */
+
+ source_file_type = bfd_getl32 (&usl->source_file_type);
+
+ if (source_file_type < TPI_FIRST_INDEX ||
+ source_file_type >= TPI_FIRST_INDEX + num_types ||
+ !map[source_file_type - TPI_FIRST_INDEX])
+ {
+ einfo (_("%P: warning: CodeView type record LF_UDT_SRC_LINE"
+ " referred to unknown string %v\n"), source_file_type);
+ return false;
+ }
+
+ str_e = map[source_file_type - TPI_FIRST_INDEX];
+
+ if (bfd_getl16 (str_e->data + sizeof (uint16_t)) != LF_STRING_ID)
+ {
+ einfo (_("%P: warning: CodeView type record LF_UDT_SRC_LINE"
+ " pointed to unexpected record type\n"));
+ return false;
+ }
+
+ str = (struct lf_string_id *) str_e->data;
+
+ /* Add string to string table. */
+
+ source_file_offset = add_string (str->string, strlen (str->string),
+ strings);
+
+ /* Add LF_UDT_MOD_SRC_LINE entry. */
+
+ size = sizeof (struct lf_udt_mod_src_line);
+
+ e = xmalloc (offsetof (struct type_entry, data) + size);
+
+ e->next = NULL;
+ e->index = ids->num_types;
+ e->has_udt_src_line = false;
+
+ /* LF_UDT_MOD_SRC_LINE use calc_hash on the type number, rather than
+ the crc32 used for type hashes elsewhere. */
+ e->cv_hash = calc_hash ((char *) &usl->type, sizeof (uint32_t));
+
+ type_e->has_udt_src_line = true;
+
+ umsl = (struct lf_udt_mod_src_line *) e->data;
+
+ bfd_putl16 (size - sizeof (uint16_t), &umsl->size);
+ bfd_putl16 (LF_UDT_MOD_SRC_LINE, &umsl->kind);
+ memcpy (&umsl->type, &usl->type, sizeof (uint32_t));
+ bfd_putl32 (source_file_offset, &umsl->source_file_string);
+ memcpy (&umsl->line_no, &usl->line_no, sizeof (uint32_t));
+ bfd_putl16 (mod_num + 1, &umsl->module_no);
+
+ hash = iterative_hash (e->data, size, 0);
+
+ slot = htab_find_slot_with_hash (ids->hashmap, data, hash, INSERT);
+ if (!slot)
+ {
+ free (e);
+ return false;
+ }
+
+ if (*slot)
+ {
+ free (e);
+ einfo (_("%P: warning: duplicate CodeView type record "
+ "LF_UDT_MOD_SRC_LINE\n"));
+ return false;
+ }
+
+ *slot = e;
+
+ if (ids->last)
+ ids->last->next = e;
+ else
+ ids->first = e;
+
+ ids->last = e;
+
+ map[type_num] = e;
+
+ ids->num_types++;
+
+ return true;
+}
+
+/* Parse a type definition in the .debug$T section. We remap the numbers
+ of any referenced types, and if the type is not a duplicate of one
+ already seen add it to types (for TPI types) or ids (for IPI types). */
+static bool
+handle_type (uint8_t *data, struct type_entry **map, uint32_t type_num,
+ uint32_t num_types, struct types *types,
+ struct types *ids, uint16_t mod_num,
+ struct string_table *strings)
+{
+ uint16_t size, type;
+ void **slot;
+ hashval_t hash;
+ bool other_hash = false;
+ uint32_t cv_hash;
+ struct types *t;
+ bool ipi = false;
+
+ size = bfd_getl16 (data) + sizeof (uint16_t);
+ type = bfd_getl16 (data + sizeof (uint16_t));
+
+ switch (type)
+ {
+ case LF_MODIFIER:
+ {
+ struct lf_modifier *mod = (struct lf_modifier *) data;
+
+ if (size < offsetof (struct lf_modifier, modifier))
+ {
+ einfo (_("%P: warning: truncated CodeView type record "
+ "LF_MODIFIER\n"));
+ return false;
+ }
+
+ if (!remap_type (&mod->base_type, map, type_num, num_types))
+ return false;
+
+ break;
+ }
+
+ case LF_POINTER:
+ {
+ struct lf_pointer *ptr = (struct lf_pointer *) data;
+
+ if (size < offsetof (struct lf_pointer, attributes))
+ {
+ einfo (_("%P: warning: truncated CodeView type record"
+ " LF_POINTER\n"));
+ return false;
+ }
+
+ if (!remap_type (&ptr->base_type, map, type_num, num_types))
+ return false;
+
+ break;
+ }
+
+ case LF_PROCEDURE:
+ {
+ struct lf_procedure *proc = (struct lf_procedure *) data;
+
+ if (size < sizeof (struct lf_procedure))
+ {
+ einfo (_("%P: warning: truncated CodeView type record"
+ " LF_PROCEDURE\n"));
+ return false;
+ }
+
+ if (!remap_type (&proc->return_type, map, type_num, num_types))
+ return false;
+
+ if (!remap_type (&proc->arglist, map, type_num, num_types))
+ return false;
+
+ break;
+ }
+
+ case LF_MFUNCTION:
+ {
+ struct lf_mfunction *func = (struct lf_mfunction *) data;
+
+ if (size < sizeof (struct lf_procedure))
+ {
+ einfo (_("%P: warning: truncated CodeView type record"
+ " LF_MFUNCTION\n"));
+ return false;
+ }
+
+ if (!remap_type (&func->return_type, map, type_num, num_types))
+ return false;
+
+ if (!remap_type (&func->containing_class_type, map, type_num,
+ num_types))
+ return false;
+
+ if (!remap_type (&func->this_type, map, type_num, num_types))
+ return false;
+
+ if (!remap_type (&func->arglist, map, type_num, num_types))
+ return false;
+
+ break;
+ }
+
+ case LF_ARGLIST:
+ {
+ uint32_t num_entries;
+ struct lf_arglist *al = (struct lf_arglist *) data;
+
+ if (size < offsetof (struct lf_arglist, args))
+ {
+ einfo (_("%P: warning: truncated CodeView type record"
+ " LF_ARGLIST\n"));
+ return false;
+ }
+
+ num_entries = bfd_getl32 (&al->num_entries);
+
+ if (size < offsetof (struct lf_arglist, args)
+ + (num_entries * sizeof (uint32_t)))
+ {
+ einfo (_("%P: warning: truncated CodeView type record"
+ " LF_ARGLIST\n"));
+ return false;
+ }
+
+ for (uint32_t i = 0; i < num_entries; i++)
+ {
+ if (!remap_type (&al->args[i], map, type_num, num_types))
+ return false;
+ }
+
+ break;
+ }
+
+ case LF_FIELDLIST:
+ {
+ uint16_t left = size - sizeof (uint16_t) - sizeof (uint16_t);
+ uint8_t *ptr = data + sizeof (uint16_t) + sizeof (uint16_t);
+
+ while (left > 0)
+ {
+ uint16_t subtype;
+
+ if (left < sizeof (uint16_t))
+ {
+ einfo (_("%P: warning: truncated CodeView type record"
+ " LF_FIELDLIST\n"));
+ return false;
+ }
+
+ subtype = bfd_getl16 (ptr);
+
+ switch (subtype)
+ {
+ case LF_MEMBER:
+ {
+ struct lf_member *mem = (struct lf_member *) ptr;
+ uint16_t offset;
+ size_t name_len, subtype_len;
+
+ if (left < offsetof (struct lf_member, name))
+ {
+ einfo (_("%P: warning: truncated CodeView type record"
+ " LF_MEMBER\n"));
+ return false;
+ }
+
+ if (!remap_type (&mem->type, map, type_num, num_types))
+ return false;
+
+ subtype_len = offsetof (struct lf_member, name);
+
+ offset = bfd_getl16 (&mem->offset);
+
+ /* If offset >= 0x8000, actual value follows. */
+ if (offset >= 0x8000)
+ {
+ unsigned int param_len = extended_value_len (offset);
+
+ if (param_len == 0)
+ {
+ einfo (_("%P: warning: unhandled type %v within"
+ " LF_MEMBER\n"), offset);
+ return false;
+ }
+
+ subtype_len += param_len;
+
+ if (left < subtype_len)
+ {
+ einfo (_("%P: warning: truncated CodeView type record"
+ " LF_MEMBER\n"));
+ return false;
+ }
+ }
+
+ name_len =
+ strnlen ((char *) mem + subtype_len, left - subtype_len);
+
+ if (name_len == left - offsetof (struct lf_member, name))
+ {
+ einfo (_("%P: warning: name for LF_MEMBER has no"
+ " terminating zero\n"));
+ return false;
+ }
+
+ name_len++;
+
+ subtype_len += name_len;
+
+ if (subtype_len % 4 != 0)
+ subtype_len += 4 - (subtype_len % 4);
+
+ if (left < subtype_len)
+ {
+ einfo (_("%P: warning: truncated CodeView type record"
+ " LF_FIELDLIST\n"));
+ return false;
+ }
+
+ ptr += subtype_len;
+ left -= subtype_len;
+
+ break;
+ }
+
+ case LF_ENUMERATE:
+ {
+ struct lf_enumerate *en = (struct lf_enumerate *) ptr;
+ size_t name_len, subtype_len;
+ uint16_t val;
+
+ if (left < offsetof (struct lf_enumerate, name))
+ {
+ einfo (_("%P: warning: truncated CodeView type record"
+ " LF_ENUMERATE\n"));
+ return false;
+ }
+
+ subtype_len = offsetof (struct lf_enumerate, name);
+
+ val = bfd_getl16 (&en->value);
+
+ /* If val >= 0x8000, the actual value immediately follows. */
+ if (val >= 0x8000)
+ {
+ unsigned int param_len = extended_value_len (val);
+
+ if (param_len == 0)
+ {
+ einfo (_("%P: warning: unhandled type %v within"
+ " LF_ENUMERATE\n"), val);
+ return false;
+ }
+
+ if (left < subtype_len + param_len)
+ {
+ einfo (_("%P: warning: truncated CodeView type"
+ " record LF_ENUMERATE\n"));
+ return false;
+ }
+
+ subtype_len += param_len;
+ }
+
+ name_len = strnlen ((char *) ptr + subtype_len,
+ left - subtype_len);
+
+ if (name_len == left - offsetof (struct lf_enumerate, name))
+ {
+ einfo (_("%P: warning: name for LF_ENUMERATE has no"
+ " terminating zero\n"));
+ return false;
+ }
+
+ name_len++;
+
+ subtype_len += name_len;
+
+ if (subtype_len % 4 != 0)
+ subtype_len += 4 - (subtype_len % 4);
+
+ if (left < subtype_len)
+ {
+ einfo (_("%P: warning: truncated CodeView type record"
+ " LF_ENUMERATE\n"));
+ return false;
+ }
+
+ ptr += subtype_len;
+ left -= subtype_len;
+
+ break;
+ }
+
+ case LF_INDEX:
+ {
+ struct lf_index *ind = (struct lf_index *) ptr;
+
+ if (left < sizeof (struct lf_index))
+ {
+ einfo (_("%P: warning: truncated CodeView type record"
+ " LF_INDEX\n"));
+ return false;
+ }
+
+ if (!remap_type (&ind->index, map, type_num, num_types))
+ return false;
+
+ ptr += sizeof (struct lf_index);
+ left -= sizeof (struct lf_index);
+
+ break;
+ }
+
+ case LF_ONEMETHOD:
+ {
+ struct lf_onemethod *meth = (struct lf_onemethod *) ptr;
+ size_t name_len, subtype_len;
+
+ if (left < offsetof (struct lf_onemethod, name))
+ {
+ einfo (_("%P: warning: truncated CodeView type record"
+ " LF_ONEMETHOD\n"));
+ return false;
+ }
+
+ if (!remap_type (&meth->method_type, map, type_num,
+ num_types))
+ return false;
+
+ name_len =
+ strnlen (meth->name,
+ left - offsetof (struct lf_onemethod, name));
+
+ if (name_len == left - offsetof (struct lf_onemethod, name))
+ {
+ einfo (_("%P: warning: name for LF_ONEMETHOD has no"
+ " terminating zero\n"));
+ return false;
+ }
+
+ name_len++;
+
+ subtype_len = offsetof (struct lf_onemethod, name)
+ + name_len;
+
+ if (subtype_len % 4 != 0)
+ subtype_len += 4 - (subtype_len % 4);
+
+ if (left < subtype_len)
+ {
+ einfo (_("%P: warning: truncated CodeView type record"
+ " LF_FIELDLIST\n"));
+ return false;
+ }
+
+ ptr += subtype_len;
+ left -= subtype_len;
+
+ break;
+ }
+
+ case LF_METHOD:
+ {
+ struct lf_method *meth = (struct lf_method *) ptr;
+ size_t name_len, subtype_len;
+
+ if (left < offsetof (struct lf_method, name))
+ {
+ einfo (_("%P: warning: truncated CodeView type record"
+ " LF_METHOD\n"));
+ return false;
+ }
+
+ if (!remap_type (&meth->method_list, map, type_num,
+ num_types))
+ return false;
+
+ name_len =
+ strnlen (meth->name,
+ left - offsetof (struct lf_method, name));
+
+ if (name_len == left - offsetof (struct lf_method, name))
+ {
+ einfo (_("%P: warning: name for LF_METHOD has no"
+ " terminating zero\n"));
+ return false;
+ }
+
+ name_len++;
+
+ subtype_len = offsetof (struct lf_method, name) + name_len;
+
+ if (subtype_len % 4 != 0)
+ subtype_len += 4 - (subtype_len % 4);
+
+ if (left < subtype_len)
+ {
+ einfo (_("%P: warning: truncated CodeView type record"
+ " LF_FIELDLIST\n"));
+ return false;
+ }
+
+ ptr += subtype_len;
+ left -= subtype_len;
+
+ break;
+ }
+
+ case LF_BCLASS:
+ {
+ struct lf_bclass *bc = (struct lf_bclass *) ptr;
+ size_t subtype_len;
+ uint16_t offset;
+
+ if (left < sizeof (struct lf_bclass))
+ {
+ einfo (_("%P: warning: truncated CodeView type record"
+ " LF_BCLASS\n"));
+ return false;
+ }
+
+ if (!remap_type (&bc->base_class_type, map, type_num,
+ num_types))
+ return false;
+
+ subtype_len = sizeof (struct lf_bclass);
+
+ offset = bfd_getl16 (&bc->offset);
+
+ /* If offset >= 0x8000, actual value follows. */
+ if (offset >= 0x8000)
+ {
+ unsigned int param_len = extended_value_len (offset);
+
+ if (param_len == 0)
+ {
+ einfo (_("%P: warning: unhandled type %v within"
+ " LF_BCLASS\n"), offset);
+ return false;
+ }
+
+ subtype_len += param_len;
+
+ if (left < subtype_len)
+ {
+ einfo (_("%P: warning: truncated CodeView type record"
+ " LF_BCLASS\n"));
+ return false;
+ }
+ }
+
+ if (subtype_len % 4 != 0)
+ subtype_len += 4 - (subtype_len % 4);
+
+ if (left < subtype_len)
+ {
+ einfo (_("%P: warning: truncated CodeView type record"
+ " LF_BCLASS\n"));
+ return false;
+ }
+
+ ptr += subtype_len;
+ left -= subtype_len;
+
+ break;
+ }
+
+ case LF_VFUNCTAB:
+ {
+ struct lf_vfunctab *vft = (struct lf_vfunctab *) ptr;
+
+ if (left < sizeof (struct lf_vfunctab))
+ {
+ einfo (_("%P: warning: truncated CodeView type record"
+ " LF_VFUNCTAB\n"));
+ return false;
+ }
+
+ if (!remap_type (&vft->type, map, type_num, num_types))
+ return false;
+
+ ptr += sizeof (struct lf_vfunctab);
+ left -= sizeof (struct lf_vfunctab);
+
+ break;
+ }
+
+ case LF_VBCLASS:
+ case LF_IVBCLASS:
+ {
+ struct lf_vbclass *vbc = (struct lf_vbclass *) ptr;
+ size_t subtype_len;
+ uint16_t offset;
+
+ if (left < sizeof (struct lf_vbclass))
+ {
+ einfo (_("%P: warning: truncated CodeView type record"
+ " LF_VBCLASS/LF_IVBCLASS\n"));
+ return false;
+ }
+
+ if (!remap_type (&vbc->base_class_type, map, type_num,
+ num_types))
+ return false;
+
+ if (!remap_type (&vbc->virtual_base_pointer_type, map,
+ type_num, num_types))
+ return false;
+
+ subtype_len = offsetof (struct lf_vbclass,
+ virtual_base_vbtable_offset);
+
+ offset = bfd_getl16 (&vbc->virtual_base_pointer_offset);
+
+ /* If offset >= 0x8000, actual value follows. */
+ if (offset >= 0x8000)
+ {
+ unsigned int param_len = extended_value_len (offset);
+
+ if (param_len == 0)
+ {
+ einfo (_("%P: warning: unhandled type %v within"
+ " LF_VBCLASS/LF_IVBCLASS\n"), offset);
+ return false;
+ }
+
+ subtype_len += param_len;
+
+ if (left < subtype_len)
+ {
+ einfo (_("%P: warning: truncated CodeView type record"
+ " LF_VBCLASS/LF_IVBCLASS\n"));
+ return false;
+ }
+ }
+
+ offset = bfd_getl16 ((char *)vbc + subtype_len);
+ subtype_len += sizeof (uint16_t);
+
+ /* If offset >= 0x8000, actual value follows. */
+ if (offset >= 0x8000)
+ {
+ unsigned int param_len = extended_value_len (offset);
+
+ if (param_len == 0)
+ {
+ einfo (_("%P: warning: unhandled type %v within"
+ " LF_VBCLASS/LF_IVBCLASS\n"), offset);
+ return false;
+ }
+
+ subtype_len += param_len;
+
+ if (left < subtype_len)
+ {
+ einfo (_("%P: warning: truncated CodeView type record"
+ " LF_VBCLASS/LF_IVBCLASS\n"));
+ return false;
+ }
+ }
+
+ if (subtype_len % 4 != 0)
+ subtype_len += 4 - (subtype_len % 4);
+
+ if (left < subtype_len)
+ {
+ einfo (_("%P: warning: truncated CodeView type record"
+ " LF_VBCLASS/LF_IVBCLASS\n"));
+ return false;
+ }
+
+ ptr += subtype_len;
+ left -= subtype_len;
+
+ break;
+ }
+
+ case LF_STMEMBER:
+ {
+ struct lf_static_member *st =
+ (struct lf_static_member *) ptr;
+ size_t name_len, subtype_len;
+
+ if (left < offsetof (struct lf_static_member, name))
+ {
+ einfo (_("%P: warning: truncated CodeView type record"
+ " LF_STMEMBER\n"));
+ return false;
+ }
+
+ if (!remap_type (&st->type, map, type_num, num_types))
+ return false;
+
+ name_len =
+ strnlen (st->name,
+ left - offsetof (struct lf_static_member, name));
+
+ if (name_len == left
+ - offsetof (struct lf_static_member, name))
+ {
+ einfo (_("%P: warning: name for LF_STMEMBER has no"
+ " terminating zero\n"));
+ return false;
+ }
+
+ name_len++;
+
+ subtype_len = offsetof (struct lf_static_member, name)
+ + name_len;
+
+ if (subtype_len % 4 != 0)
+ subtype_len += 4 - (subtype_len % 4);
+
+ if (left < subtype_len)
+ {
+ einfo (_("%P: warning: truncated CodeView type record"
+ " LF_FIELDLIST\n"));
+ return false;
+ }
+
+ ptr += subtype_len;
+ left -= subtype_len;
+
+ break;
+ }
+
+ case LF_NESTTYPE:
+ {
+ struct lf_nest_type *nest = (struct lf_nest_type *) ptr;
+ size_t name_len, subtype_len;
+
+ if (left < offsetof (struct lf_nest_type, name))
+ {
+ einfo (_("%P: warning: truncated CodeView type record"
+ " LF_NESTTYPE\n"));
+ return false;
+ }
+
+ if (!remap_type (&nest->type, map, type_num, num_types))
+ return false;
+
+ name_len =
+ strnlen (nest->name,
+ left - offsetof (struct lf_nest_type, name));
+
+ if (name_len == left - offsetof (struct lf_nest_type, name))
+ {
+ einfo (_("%P: warning: name for LF_NESTTYPE has no"
+ " terminating zero\n"));
+ return false;
+ }
+
+ name_len++;
+
+ subtype_len = offsetof (struct lf_nest_type, name)
+ + name_len;
+
+ if (subtype_len % 4 != 0)
+ subtype_len += 4 - (subtype_len % 4);
+
+ if (left < subtype_len)
+ {
+ einfo (_("%P: warning: truncated CodeView type record"
+ " LF_FIELDLIST\n"));
+ return false;
+ }
+
+ ptr += subtype_len;
+ left -= subtype_len;
+
+ break;
+ }
+
+ default:
+ einfo (_("%P: warning: unrecognized CodeView subtype %v\n"),
+ subtype);
+ return false;
+ }
+ }
+
+ break;
+ }
+
+ case LF_BITFIELD:
+ {
+ struct lf_bitfield *bf = (struct lf_bitfield *) data;
+
+ if (size < offsetof (struct lf_bitfield, length))
+ {
+ einfo (_("%P: warning: truncated CodeView type record"
+ " LF_BITFIELD\n"));
+ return false;
+ }
+
+ if (!remap_type (&bf->base_type, map, type_num, num_types))
+ return false;
+
+ break;
+ }
+
+ case LF_METHODLIST:
+ {
+ struct lf_methodlist *ml = (struct lf_methodlist *) data;
+ unsigned int num_entries;
+
+ if (size < offsetof (struct lf_methodlist, entries))
+ {
+ einfo (_("%P: warning: truncated CodeView type record"
+ " LF_METHODLIST\n"));
+ return false;
+ }
+
+ if ((size - offsetof (struct lf_methodlist, entries))
+ % sizeof (struct lf_methodlist_entry))
+ {
+ einfo (_("%P: warning: malformed CodeView type record"
+ " LF_METHODLIST\n"));
+ return false;
+ }
+
+ num_entries = (size - offsetof (struct lf_methodlist, entries))
+ / sizeof (struct lf_methodlist_entry);
+
+ for (unsigned int i = 0; i < num_entries; i++)
+ {
+ if (!remap_type (&ml->entries[i].method_type, map,
+ type_num, num_types))
+ return false;
+ }
+
+ break;
+ }
+
+ case LF_ARRAY:
+ {
+ struct lf_array *arr = (struct lf_array *) data;
+
+ if (size < offsetof (struct lf_array, length_in_bytes))
+ {
+ einfo (_("%P: warning: truncated CodeView type record"
+ " LF_ARRAY\n"));
+ return false;
+ }
+
+ if (!remap_type (&arr->element_type, map, type_num, num_types))
+ return false;
+
+ if (!remap_type (&arr->index_type, map, type_num, num_types))
+ return false;
+
+ break;
+ }
+
+ case LF_CLASS:
+ case LF_STRUCTURE:
+ {
+ struct lf_class *cl = (struct lf_class *) data;
+ uint16_t prop, num_bytes;
+ size_t name_len, name_off;
+
+ if (size < offsetof (struct lf_class, name))
+ {
+ einfo (_("%P: warning: truncated CodeView type record"
+ " LF_CLASS/LF_STRUCTURE\n"));
+ return false;
+ }
+
+ if (!remap_type (&cl->field_list, map, type_num, num_types))
+ return false;
+
+ if (!remap_type (&cl->derived_from, map, type_num, num_types))
+ return false;
+
+ if (!remap_type (&cl->vshape, map, type_num, num_types))
+ return false;
+
+ name_off = offsetof (struct lf_class, name);
+
+ num_bytes = bfd_getl16 (&cl->length);
+
+ /* If num_bytes >= 0x8000, actual value follows. */
+ if (num_bytes >= 0x8000)
+ {
+ unsigned int param_len = extended_value_len (num_bytes);
+
+ if (param_len == 0)
+ {
+ einfo (_("%P: warning: unhandled type %v within"
+ " LF_CLASS/LF_STRUCTURE\n"), num_bytes);
+ return false;
+ }
+
+ name_off += param_len;
+
+ if (size < name_off)
+ {
+ einfo (_("%P: warning: truncated CodeView type record"
+ " LF_CLASS/LF_STRUCTURE\n"));
+ return false;
+ }
+ }
+
+ name_len = strnlen ((char *) cl + name_off, size - name_off);
+
+ if (name_len == size - name_off)
+ {
+ einfo (_("%P: warning: name for LF_CLASS/LF_STRUCTURE has no"
+ " terminating zero\n"));
+ return false;
+ }
+
+ prop = bfd_getl16 (&cl->properties);
+
+ if (prop & CV_PROP_HAS_UNIQUE_NAME)
+ {
+ /* Structure has another name following first one. */
+
+ size_t len = name_off + name_len + 1;
+ size_t unique_name_len;
+
+ unique_name_len = strnlen ((char *) cl + name_off + name_len + 1,
+ size - len);
+
+ if (unique_name_len == size - len)
+ {
+ einfo (_("%P: warning: unique name for LF_CLASS/LF_STRUCTURE"
+ " has no terminating zero\n"));
+ return false;
+ }
+ }
+
+ if (!(prop & (CV_PROP_FORWARD_REF | CV_PROP_SCOPED))
+ && !is_name_anonymous ((char *) cl + name_off, name_len))
+ {
+ other_hash = true;
+ cv_hash = crc32 ((uint8_t *) cl + name_off, name_len);
+ }
+
+ break;
+ }
+
+ case LF_UNION:
+ {
+ struct lf_union *un = (struct lf_union *) data;
+ uint16_t prop, num_bytes;
+ size_t name_len, name_off;
+
+ if (size < offsetof (struct lf_union, name))
+ {
+ einfo (_("%P: warning: truncated CodeView type record"
+ " LF_UNION\n"));
+ return false;
+ }
+
+ if (!remap_type (&un->field_list, map, type_num, num_types))
+ return false;
+
+ name_off = offsetof (struct lf_union, name);
+
+ num_bytes = bfd_getl16 (&un->length);
+
+ /* If num_bytes >= 0x8000, actual value follows. */
+ if (num_bytes >= 0x8000)
+ {
+ unsigned int param_len = extended_value_len (num_bytes);
+
+ if (param_len == 0)
+ {
+ einfo (_("%P: warning: unhandled type %v within"
+ " LF_UNION\n"), num_bytes);
+ return false;
+ }
+
+ name_off += param_len;
+
+ if (size < name_off)
+ {
+ einfo (_("%P: warning: truncated CodeView type record"
+ " LF_UNION\n"));
+ return false;
+ }
+ }
+
+ name_len = strnlen ((char *) un + name_off, size - name_off);
+
+ if (name_len == size - name_off)
+ {
+ einfo (_("%P: warning: name for LF_UNION has no"
+ " terminating zero\n"));
+ return false;
+ }
+
+ prop = bfd_getl16 (&un->properties);
+
+ if (prop & CV_PROP_HAS_UNIQUE_NAME)
+ {
+ /* Structure has another name following first one. */
+
+ size_t len = name_off + name_len + 1;
+ size_t unique_name_len;
+
+ unique_name_len = strnlen ((char *) un + name_off + name_len + 1,
+ size - len);
+
+ if (unique_name_len == size - len)
+ {
+ einfo (_("%P: warning: unique name for LF_UNION has"
+ " no terminating zero\n"));
+ return false;
+ }
+ }
+
+ if (!(prop & (CV_PROP_FORWARD_REF | CV_PROP_SCOPED))
+ && !is_name_anonymous ((char *) un + name_off, name_len))
+ {
+ other_hash = true;
+ cv_hash = crc32 ((uint8_t *) un + name_off, name_len);
+ }
+
+ break;
+ }
+
+ case LF_ENUM:
+ {
+ struct lf_enum *en = (struct lf_enum *) data;
+ uint16_t prop;
+ size_t name_len;
+
+ if (size < offsetof (struct lf_enum, name))
+ {
+ einfo (_("%P: warning: truncated CodeView type record"
+ " LF_ENUM\n"));
+ return false;
+ }
+
+ if (!remap_type (&en->underlying_type, map, type_num, num_types))
+ return false;
+
+ if (!remap_type (&en->field_list, map, type_num, num_types))
+ return false;
+
+ name_len = strnlen (en->name, size - offsetof (struct lf_enum, name));
+
+ if (name_len == size - offsetof (struct lf_enum, name))
+ {
+ einfo (_("%P: warning: name for LF_ENUM has no"
+ " terminating zero\n"));
+ return false;
+ }
+
+ prop = bfd_getl16 (&en->properties);
+
+ if (prop & CV_PROP_HAS_UNIQUE_NAME)
+ {
+ /* Structure has another name following first one. */
+
+ size_t len = offsetof (struct lf_enum, name) + name_len + 1;
+ size_t unique_name_len;
+
+ unique_name_len = strnlen (en->name + name_len + 1, size - len);
+
+ if (unique_name_len == size - len)
+ {
+ einfo (_("%P: warning: unique name for LF_ENUM has"
+ " no terminating zero\n"));
+ return false;
+ }
+ }
+
+ break;
+ }
+
+ case LF_VTSHAPE:
+ /* Does not reference any types, nothing to be done. */
+ break;
+
+ case LF_VFTABLE:
+ {
+ struct lf_vftable *vft = (struct lf_vftable *) data;
+
+ if (size < offsetof (struct lf_vftable, names))
+ {
+ einfo (_("%P: warning: truncated CodeView type record"
+ " LF_VFTABLE\n"));
+ return false;
+ }
+
+ if (!remap_type (&vft->type, map, type_num, num_types))
+ return false;
+
+ if (!remap_type (&vft->base_vftable, map, type_num, num_types))
+ return false;
+
+ break;
+ }
+
+ case LF_STRING_ID:
+ {
+ struct lf_string_id *str = (struct lf_string_id *) data;
+ size_t string_len;
+
+ if (size < offsetof (struct lf_string_id, string))
+ {
+ einfo (_("%P: warning: truncated CodeView type record"
+ " LF_STRING_ID\n"));
+ return false;
+ }
+
+ if (!remap_type (&str->substring, map, type_num, num_types))
+ return false;
+
+ string_len = strnlen (str->string,
+ size - offsetof (struct lf_string_id, string));
+
+ if (string_len == size - offsetof (struct lf_string_id, string))
+ {
+ einfo (_("%P: warning: string for LF_STRING_ID has no"
+ " terminating zero\n"));
+ return false;
+ }
+
+ ipi = true;
+
+ break;
+ }
+
+ case LF_SUBSTR_LIST:
+ {
+ uint32_t num_entries;
+ struct lf_arglist *ssl = (struct lf_arglist *) data;
+
+ if (size < offsetof (struct lf_arglist, args))
+ {
+ einfo (_("%P: warning: truncated CodeView type record"
+ " LF_SUBSTR_LIST\n"));
+ return false;
+ }
+
+ num_entries = bfd_getl32 (&ssl->num_entries);
+
+ if (size < offsetof (struct lf_arglist, args)
+ + (num_entries * sizeof (uint32_t)))
+ {
+ einfo (_("%P: warning: truncated CodeView type record"
+ " LF_SUBSTR_LIST\n"));
+ return false;
+ }
+
+ for (uint32_t i = 0; i < num_entries; i++)
+ {
+ if (!remap_type (&ssl->args[i], map, type_num, num_types))
+ return false;
+ }
+
+ ipi = true;
+
+ break;
+ }
+
+ case LF_BUILDINFO:
+ {
+ uint16_t num_entries;
+ struct lf_build_info *bi = (struct lf_build_info *) data;
+
+ if (size < offsetof (struct lf_build_info, strings))
+ {
+ einfo (_("%P: warning: truncated CodeView type record"
+ " LF_BUILDINFO\n"));
+ return false;
+ }
+
+ num_entries = bfd_getl16 (&bi->count);
+
+ if (size < offsetof (struct lf_build_info, strings)
+ + (num_entries * sizeof (uint32_t)))
+ {
+ einfo (_("%P: warning: truncated CodeView type record"
+ " LF_BUILDINFO\n"));
+ return false;
+ }
+
+ for (uint32_t i = 0; i < num_entries; i++)
+ {
+ if (!remap_type (&bi->strings[i], map, type_num, num_types))
+ return false;
+ }
+
+ ipi = true;
+
+ break;
+ }
+
+ case LF_FUNC_ID:
+ {
+ struct lf_func_id *func = (struct lf_func_id *) data;
+ size_t name_len;
+
+ if (size < offsetof (struct lf_func_id, name))
+ {
+ einfo (_("%P: warning: truncated CodeView type record"
+ " LF_FUNC_ID\n"));
+ return false;
+ }
+
+ if (!remap_type (&func->parent_scope, map, type_num, num_types))
+ return false;
+
+ if (!remap_type (&func->function_type, map, type_num, num_types))
+ return false;
+
+ name_len = strnlen (func->name,
+ size - offsetof (struct lf_func_id, name));
+
+ if (name_len == size - offsetof (struct lf_func_id, name))
+ {
+ einfo (_("%P: warning: string for LF_FUNC_ID has no"
+ " terminating zero\n"));
+ return false;
+ }
+
+ ipi = true;
+
+ break;
+ }
+
+ case LF_MFUNC_ID:
+ {
+ struct lf_mfunc_id *mfunc = (struct lf_mfunc_id *) data;
+ size_t name_len;
+
+ if (size < offsetof (struct lf_mfunc_id, name))
+ {
+ einfo (_("%P: warning: truncated CodeView type record"
+ " LF_MFUNC_ID\n"));
+ return false;
+ }
+
+ if (!remap_type (&mfunc->parent_type, map, type_num, num_types))
+ return false;
+
+ if (!remap_type (&mfunc->function_type, map, type_num, num_types))
+ return false;
+
+ name_len = strnlen (mfunc->name,
+ size - offsetof (struct lf_mfunc_id, name));
+
+ if (name_len == size - offsetof (struct lf_mfunc_id, name))
+ {
+ einfo (_("%P: warning: string for LF_MFUNC_ID has no"
+ " terminating zero\n"));
+ return false;
+ }
+
+ ipi = true;
+
+ break;
+ }
+
+ case LF_UDT_SRC_LINE:
+ return handle_udt_src_line (data, size, map, type_num, num_types,
+ ids, mod_num, strings);
+
+ default:
+ einfo (_("%P: warning: unrecognized CodeView type %v\n"), type);
+ return false;
+ }
+
+ hash = iterative_hash (data, size, 0);
+
+ t = ipi ? ids : types;
+
+ slot = htab_find_slot_with_hash (t->hashmap, data, hash, INSERT);
+ if (!slot)
+ return false;
+
+ if (!*slot) /* new entry */
+ {
+ struct type_entry *e;
+
+ *slot = xmalloc (offsetof (struct type_entry, data) + size);
+
+ e = (struct type_entry *) *slot;
+
+ e->next = NULL;
+ e->index = t->num_types;
+
+ if (other_hash)
+ e->cv_hash = cv_hash;
+ else
+ e->cv_hash = crc32 (data, size);
+
+ e->has_udt_src_line = false;
+
+ memcpy (e->data, data, size);
+
+ if (t->last)
+ t->last->next = e;
+ else
+ t->first = e;
+
+ t->last = e;
+
+ map[type_num] = e;
+
+ t->num_types++;
+ }
+ else /* duplicate */
+ {
+ map[type_num] = (struct type_entry *) *slot;
+ }
+
+ return true;
+}
+
+/* Parse the .debug$T section of a module, and pass any type definitions
+ found to handle_type. */
+static bool
+handle_debugt_section (asection *s, bfd *mod, struct types *types,
+ struct types *ids, uint16_t mod_num,
+ struct string_table *strings,
+ struct type_entry ***map, uint32_t *num_types)
+{
+ bfd_byte *data = NULL;
+ size_t off;
+ uint32_t type_num;
+
+ if (!bfd_get_full_section_contents (mod, s, &data))
+ return false;
+
+ if (!data)
+ return false;
+
+ if (bfd_getl32 (data) != CV_SIGNATURE_C13)
+ {
+ free (data);
+ return true;
+ }
+
+ off = sizeof (uint32_t);
+
+ while (off + sizeof (uint16_t) <= s->size)
+ {
+ uint16_t size;
+
+ size = bfd_getl16 (data + off);
+ off += sizeof (uint16_t);
+
+ if (size + off > s->size || size <= sizeof (uint16_t))
+ {
+ free (data);
+ bfd_set_error (bfd_error_bad_value);
+ return false;
+ }
+
+ (*num_types)++;
+ off += size;
+ }
+
+ if (*num_types == 0)
+ {
+ free (data);
+ return true;
+ }
+
+ *map = xcalloc (*num_types, sizeof (struct type_entry *));
+
+ off = sizeof (uint32_t);
+ type_num = 0;
+
+ while (off + sizeof (uint16_t) <= s->size)
+ {
+ uint16_t size;
+
+ size = bfd_getl16 (data + off);
+
+ if (!handle_type (data + off, *map, type_num, *num_types, types, ids,
+ mod_num, strings))
+ {
+ free (data);
+ free (*map);
+ bfd_set_error (bfd_error_bad_value);
+ return false;
+ }
+
+ off += sizeof (uint16_t) + size;
+ type_num++;
+ }
+
+ free (data);
+
+ return true;
+}
+
+/* Return the CodeView constant for the selected architecture. */
+static uint16_t
+target_processor (bfd *abfd)
+{
+ switch (abfd->arch_info->arch)
+ {
+ case bfd_arch_i386:
+ if (abfd->arch_info->mach & bfd_mach_x86_64)
+ return CV_CFL_X64;
+ else
+ return CV_CFL_80386;
+
+ case bfd_arch_aarch64:
+ return CV_CFL_ARM64;
+
+ default:
+ return 0;
+ }
+}
+
+/* Create the symbols that go in "* Linker *", the dummy module created
+ for the linker itself. */
+static bool
+create_linker_symbols (bfd *abfd, uint8_t **syms, uint32_t *sym_byte_size,
+ const char *pdb_name)
+{
+ uint8_t *ptr;
+ struct objname *name;
+ struct compile3 *comp;
+ struct envblock *env;
+ size_t padding1, padding2, env_size;
+ char *cwdval, *exeval, *pdbval;
+
+ /* extra NUL for padding */
+ static const char linker_fn[] = "* Linker *\0";
+ static const char linker_name[] = "GNU LD " VERSION;
+
+ static const char cwd[] = "cwd";
+ static const char exe[] = "exe";
+ static const char pdb[] = "pdb";
+
+ cwdval = getcwd (NULL, 0);
+ if (!cwdval)
+ {
+ einfo (_("%P: warning: unable to get working directory\n"));
+ return false;
+ }
+
+ exeval = lrealpath (program_name);
+
+ if (!exeval)
+ {
+ einfo (_("%P: warning: unable to get program name\n"));
+ free (cwdval);
+ return false;
+ }
+
+ pdbval = lrealpath (pdb_name);
+
+ if (!pdbval)
+ {
+ einfo (_("%P: warning: unable to get full path to PDB\n"));
+ free (exeval);
+ free (cwdval);
+ return false;
+ }
+
+ *sym_byte_size += offsetof (struct objname, name) + sizeof (linker_fn);
+ *sym_byte_size += offsetof (struct compile3, compiler) + sizeof (linker_name);
+
+ if (*sym_byte_size % 4)
+ padding1 = 4 - (*sym_byte_size % 4);
+ else
+ padding1 = 0;
+
+ *sym_byte_size += padding1;
+
+ env_size = offsetof (struct envblock, strings);
+ env_size += sizeof (cwd);
+ env_size += strlen (cwdval) + 1;
+ env_size += sizeof (exe);
+ env_size += strlen (exeval) + 1;
+ env_size += sizeof (pdb);
+ env_size += strlen (pdbval) + 1;
+
+ if (env_size % 4)
+ padding2 = 4 - (env_size % 4);
+ else
+ padding2 = 0;
+
+ env_size += padding2;
+
+ *sym_byte_size += env_size;
+
+ *syms = xmalloc (*sym_byte_size);
+ ptr = *syms;
+
+ /* Write S_OBJNAME */
+
+ name = (struct objname *) ptr;
+ bfd_putl16 (offsetof (struct objname, name)
+ + sizeof (linker_fn) - sizeof (uint16_t), &name->size);
+ bfd_putl16 (S_OBJNAME, &name->kind);
+ bfd_putl32 (0, &name->signature);
+ memcpy (name->name, linker_fn, sizeof (linker_fn));
+
+ ptr += offsetof (struct objname, name) + sizeof (linker_fn);
+
+ /* Write S_COMPILE3 */
+
+ comp = (struct compile3 *) ptr;
+
+ bfd_putl16 (offsetof (struct compile3, compiler) + sizeof (linker_name)
+ + padding1 - sizeof (uint16_t), &comp->size);
+ bfd_putl16 (S_COMPILE3, &comp->kind);
+ bfd_putl32 (CV_CFL_LINK, &comp->flags);
+ bfd_putl16 (target_processor (abfd), &comp->machine);
+ bfd_putl16 (0, &comp->frontend_major);
+ bfd_putl16 (0, &comp->frontend_minor);
+ bfd_putl16 (0, &comp->frontend_build);
+ bfd_putl16 (0, &comp->frontend_qfe);
+ bfd_putl16 (0, &comp->backend_major);
+ bfd_putl16 (0, &comp->backend_minor);
+ bfd_putl16 (0, &comp->backend_build);
+ bfd_putl16 (0, &comp->backend_qfe);
+ memcpy (comp->compiler, linker_name, sizeof (linker_name));
+
+ memset (comp->compiler + sizeof (linker_name), 0, padding1);
+
+ ptr += offsetof (struct compile3, compiler) + sizeof (linker_name) + padding1;
+
+ /* Write S_ENVBLOCK */
+
+ env = (struct envblock *) ptr;
+
+ bfd_putl16 (env_size - sizeof (uint16_t), &env->size);
+ bfd_putl16 (S_ENVBLOCK, &env->kind);
+ env->flags = 0;
+
+ ptr += offsetof (struct envblock, strings);
+
+ memcpy (ptr, cwd, sizeof (cwd));
+ ptr += sizeof (cwd);
+ memcpy (ptr, cwdval, strlen (cwdval) + 1);
+ ptr += strlen (cwdval) + 1;
+
+ memcpy (ptr, exe, sizeof (exe));
+ ptr += sizeof (exe);
+ memcpy (ptr, exeval, strlen (exeval) + 1);
+ ptr += strlen (exeval) + 1;
+
+ memcpy (ptr, pdb, sizeof (pdb));
+ ptr += sizeof (pdb);
+ memcpy (ptr, pdbval, strlen (pdbval) + 1);
+ ptr += strlen (pdbval) + 1;
+
+ /* Microsoft's LINK also includes "cmd", the command-line options passed
+ to the linker, but unfortunately we don't have access to argc and argv
+ at this stage. */
+
+ memset (ptr, 0, padding2);
+
+ free (pdbval);
+ free (exeval);
+ free (cwdval);
+
+ return true;
+}
+
+/* Populate the module stream, which consists of the transformed .debug$S
+ data for each object file. */
+static bool
+populate_module_stream (bfd *stream, bfd *mod, uint32_t *sym_byte_size,
+ struct string_table *strings,
+ uint32_t *c13_info_size,
+ struct mod_source_files *mod_source,
+ bfd *abfd, struct types *types,
+ struct types *ids, uint16_t mod_num,
+ bfd *sym_rec_stream, struct globals *glob,
+ const char *pdb_name)
+{
+ uint8_t int_buf[sizeof (uint32_t)];
+ uint8_t *c13_info = NULL;
+ uint8_t *syms = NULL;
+
+ *sym_byte_size = 0;
+ *c13_info_size = 0;
+
+ if (!strcmp (bfd_get_filename (mod), "dll stuff"))
+ {
+ if (!create_linker_symbols (mod, &syms, sym_byte_size, pdb_name))
+ return false;
+ }
+ else
+ {
+ struct type_entry **map = NULL;
+ uint32_t num_types = 0;
+
+ /* Process .debug$T section. */
+
+ for (asection *s = mod->sections; s; s = s->next)
+ {
+ if (!strcmp (s->name, ".debug$T") && s->size >= sizeof (uint32_t))
+ {
+ if (!handle_debugt_section (s, mod, types, ids, mod_num, strings,
+ &map, &num_types))
+ {
+ free (mod_source->files);
+ return false;
+ }
+
+ break;
+ }
+ }
+
+ /* Process .debug$S section(s). */
+
+ for (asection *s = mod->sections; s; s = s->next)
+ {
+ if (!strcmp (s->name, ".debug$S") && s->size >= sizeof (uint32_t))
+ {
+ if (!handle_debugs_section (s, mod, strings, &c13_info,
+ c13_info_size, mod_source, abfd,
+ &syms, sym_byte_size, map, num_types,
+ sym_rec_stream, glob, mod_num))
+ {
+ free (c13_info);
+ free (syms);
+ free (mod_source->files);
+ free (map);
+ return false;
+ }
+ }
+ }
+
+ free (map);
+ }
+
+ /* Write the signature. */
+
+ bfd_putl32 (CV_SIGNATURE_C13, int_buf);
+
+ if (bfd_write (int_buf, sizeof (uint32_t), stream) != sizeof (uint32_t))
+ {
+ free (c13_info);
+ free (syms);
+ return false;
+ }
+
+ if (syms)
+ {
+ if (bfd_write (syms, *sym_byte_size, stream) != *sym_byte_size)
+ {
+ free (c13_info);
+ free (syms);
+ return false;
+ }
+
+ free (syms);
+ }
+
+ if (c13_info)
+ {
+ if (bfd_write (c13_info, *c13_info_size, stream) != *c13_info_size)
+ {
+ free (c13_info);
+ return false;
+ }
+
+ free (c13_info);
+ }
+
+ /* Write the global refs size. */
+
+ bfd_putl32 (0, int_buf);
+
+ if (bfd_write (int_buf, sizeof (uint32_t), stream) != sizeof (uint32_t))
+ return false;
+
+ return true;
+}
+
+/* Create the module info substream within the DBI. */
+static bool
+create_module_info_substream (bfd *abfd, bfd *pdb, void **data,
+ uint32_t *size, struct string_table *strings,
+ struct source_files_info *source,
+ struct types *types, struct types *ids,
+ bfd *sym_rec_stream, struct globals *glob,
+ const char *pdb_name)
+{
+ uint8_t *ptr;
+ unsigned int mod_num;
+
+ static const char linker_fn[] = "* Linker *";
+
+ *size = 0;
+
+ for (bfd *in = coff_data (abfd)->link_info->input_bfds; in;
+ in = in->link.next)
+ {
+ size_t len = sizeof (struct module_info);
+
+ if (!strcmp (bfd_get_filename (in), "dll stuff"))
+ {
+ len += sizeof (linker_fn); /* Object name. */
+ len++; /* Empty module name. */
+ }
+ else if (in->my_archive)
+ {
+ char *name = lrealpath (bfd_get_filename (in));
+
+ len += strlen (name) + 1; /* Object name. */
+
+ free (name);
+
+ name = lrealpath (bfd_get_filename (in->my_archive));
+
+ len += strlen (name) + 1; /* Archive name. */
+
+ free (name);
+ }
+ else
+ {
+ char *name = lrealpath (bfd_get_filename (in));
+ size_t name_len = strlen (name) + 1;
+
+ len += name_len; /* Object name. */
+ len += name_len; /* And again as the archive name. */
+
+ free (name);
+ }
+
+ if (len % 4)
+ len += 4 - (len % 4);
+
+ *size += len;
+
+ source->mod_count++;
+ }
+
+ *data = xmalloc (*size);
+
+ ptr = *data;
+
+ source->mods = xmalloc (source->mod_count
+ * sizeof (struct mod_source_files));
+ memset (source->mods, 0,
+ source->mod_count * sizeof (struct mod_source_files));
+
+ mod_num = 0;
+
+ for (bfd *in = coff_data (abfd)->link_info->input_bfds; in;
+ in = in->link.next)
+ {
+ struct module_info *mod = (struct module_info *) ptr;
+ uint16_t stream_num;
+ bfd *stream;
+ uint32_t sym_byte_size, c13_info_size;
+ uint8_t *start = ptr;
+
+ stream = add_stream (pdb, NULL, &stream_num);
+
+ if (!stream)
+ {
+ for (unsigned int i = 0; i < source->mod_count; i++)
+ {
+ free (source->mods[i].files);
+ }
+
+ free (source->mods);
+ free (*data);
+ return false;
+ }
+
+ if (!populate_module_stream (stream, in, &sym_byte_size,
+ strings, &c13_info_size,
+ &source->mods[mod_num], abfd,
+ types, ids, mod_num,
+ sym_rec_stream, glob, pdb_name))
+ {
+ for (unsigned int i = 0; i < source->mod_count; i++)
+ {
+ free (source->mods[i].files);
+ }
+
+ free (source->mods);
+ free (*data);
+ return false;
+ }
+
+ bfd_putl32 (0, &mod->unused1);
+
+ /* These are dummy values - MSVC copies the first section contribution
+ entry here, but doesn't seem to use it for anything. */
+ bfd_putl16 (0xffff, &mod->sc.section);
+ bfd_putl16 (0, &mod->sc.padding1);
+ bfd_putl32 (0, &mod->sc.offset);
+ bfd_putl32 (0xffffffff, &mod->sc.size);
+ bfd_putl32 (0, &mod->sc.characteristics);
+ bfd_putl16 (0xffff, &mod->sc.module_index);
+ bfd_putl16 (0, &mod->sc.padding2);
+ bfd_putl32 (0, &mod->sc.data_crc);
+ bfd_putl32 (0, &mod->sc.reloc_crc);
+
+ bfd_putl16 (0, &mod->flags);
+ bfd_putl16 (stream_num, &mod->module_sym_stream);
+ bfd_putl32 (sizeof (uint32_t) + sym_byte_size, &mod->sym_byte_size);
+ bfd_putl32 (0, &mod->c11_byte_size);
+ bfd_putl32 (c13_info_size, &mod->c13_byte_size);
+ bfd_putl16 (0, &mod->source_file_count);
+ bfd_putl16 (0, &mod->padding);
+ bfd_putl32 (0, &mod->unused2);
+ bfd_putl32 (0, &mod->source_file_name_index);
+ bfd_putl32 (0, &mod->pdb_file_path_name_index);
+
+ ptr += sizeof (struct module_info);
+
+ if (!strcmp (bfd_get_filename (in), "dll stuff"))
+ {
+ /* Object name. */
+ memcpy (ptr, linker_fn, sizeof (linker_fn));
+ ptr += sizeof (linker_fn);
+
+ /* Empty module name. */
+ *ptr = 0;
+ ptr++;
+ }
+ else if (in->my_archive)
+ {
+ char *name = lrealpath (bfd_get_filename (in));
+ size_t name_len = strlen (name) + 1;
+
+ /* Object name. */
+ memcpy (ptr, name, name_len);
+ ptr += name_len;
+
+ free (name);
+
+ name = lrealpath (bfd_get_filename (in->my_archive));
+ name_len = strlen (name) + 1;
+
+ /* Archive name. */
+ memcpy (ptr, name, name_len);
+ ptr += name_len;
+
+ free (name);
+ }
+ else
+ {
+ char *name = lrealpath (bfd_get_filename (in));
+ size_t name_len = strlen (name) + 1;
+
+ /* Object name. */
+ memcpy (ptr, name, name_len);
+ ptr += name_len;
+
+ /* Object name again as archive name. */
+ memcpy (ptr, name, name_len);
+ ptr += name_len;
+
+ free (name);
+ }
+
+ /* Pad to next four-byte boundary. */
+
+ if ((ptr - start) % 4)
+ {
+ memset (ptr, 0, 4 - ((ptr - start) % 4));
+ ptr += 4 - ((ptr - start) % 4);
+ }
+
+ mod_num++;
+ }
+
+ return true;
+}
+
+/* Return the index of a given output section. */
+static uint16_t
+find_section_number (bfd *abfd, asection *sect)
+{
+ uint16_t i = 1;
+
+ for (asection *s = abfd->sections; s; s = s->next)
+ {
+ if (s == sect)
+ return i;
+
+ /* Empty sections aren't output. */
+ if (s->size != 0)
+ i++;
+ }
+
+ return 0;
+}
+
+/* Used as parameter to qsort, to sort section contributions by section and
+ offset. */
+static int
+section_contribs_compare (const void *p1, const void *p2)
+{
+ const struct in_sc *sc1 = p1;
+ const struct in_sc *sc2 = p2;
+
+ if (sc1->sect_num < sc2->sect_num)
+ return -1;
+ if (sc1->sect_num > sc2->sect_num)
+ return 1;
+
+ if (sc1->s->output_offset < sc2->s->output_offset)
+ return -1;
+ if (sc1->s->output_offset > sc2->s->output_offset)
+ return 1;
+
+ return 0;
+}
+
+/* Create the substream which maps addresses in the image file to locations
+ in the original object files. */
+static bool
+create_section_contrib_substream (bfd *abfd, void **data, uint32_t *size)
+{
+ unsigned int num_sc = 0;
+ struct section_contribution *sc;
+ uint16_t mod_index;
+ char *sect_flags;
+ file_ptr offset;
+ struct in_sc *sc_in, *sc2;
+ uint32_t *ptr;
+
+ for (bfd *in = coff_data (abfd)->link_info->input_bfds; in;
+ in = in->link.next)
+ {
+ for (asection *s = in->sections; s; s = s->next)
+ {
+ if (s->size == 0 || discarded_section (s))
+ continue;
+
+ num_sc++;
+ }
+ }
+
+ *size = sizeof (uint32_t) + (num_sc * sizeof (struct section_contribution));
+ *data = xmalloc (*size);
+
+ bfd_putl32 (SECTION_CONTRIB_VERSION_60, *data);
+
+ /* Read characteristics of outputted sections. */
+
+ sect_flags = xmalloc (sizeof (uint32_t) * abfd->section_count);
+
+ offset = bfd_coff_filhsz (abfd) + bfd_coff_aoutsz (abfd);
+ offset += offsetof (struct external_scnhdr, s_flags);
+
+ for (unsigned int i = 0; i < abfd->section_count; i++)
+ {
+ if (bfd_seek (abfd, offset, SEEK_SET) != 0
+ || bfd_read (sect_flags + (i * sizeof (uint32_t)), sizeof (uint32_t),
+ abfd) != sizeof (uint32_t))
+ {
+ free (*data);
+ free (sect_flags);
+ return false;
+ }
+
+ offset += sizeof (struct external_scnhdr);
+ }
+
+ /* Microsoft's DIA expects section contributions to be sorted by section
+ number and offset, otherwise it will be unable to resolve line numbers. */
+
+ sc_in = xmalloc (num_sc * sizeof (* sc_in));
+ sc2 = sc_in;
+
+ mod_index = 0;
+ for (bfd *in = coff_data (abfd)->link_info->input_bfds; in;
+ in = in->link.next)
+ {
+ for (asection *s = in->sections; s; s = s->next)
+ {
+ if (s->size == 0 || discarded_section (s))
+ continue;
+
+ sc2->s = s;
+ sc2->sect_num = find_section_number (abfd, s->output_section);
+ sc2->mod_index = mod_index;
+
+ sc2++;
+ }
+
+ mod_index++;
+ }
+
+ qsort (sc_in, num_sc, sizeof (* sc_in), section_contribs_compare);
+
+ ptr = *data;
+ sc = (struct section_contribution *) (ptr + 1); /* Skip the version word. */
+
+ for (unsigned int i = 0; i < num_sc; i++)
+ {
+ memcpy (&sc->characteristics,
+ sect_flags + ((sc_in[i].sect_num - 1) * sizeof (uint32_t)),
+ sizeof (uint32_t));
+
+ bfd_putl16 (sc_in[i].sect_num, &sc->section);
+ bfd_putl16 (0, &sc->padding1);
+ bfd_putl32 (sc_in[i].s->output_offset, &sc->offset);
+ bfd_putl32 (sc_in[i].s->size, &sc->size);
+ bfd_putl16 (sc_in[i].mod_index, &sc->module_index);
+ bfd_putl16 (0, &sc->padding2);
+ bfd_putl32 (0, &sc->data_crc);
+ bfd_putl32 (0, &sc->reloc_crc);
+
+ sc++;
+ }
+
+ free (sc_in);
+ free (sect_flags);
+
+ return true;
+}
+
+/* The source info substream lives within the DBI stream, and lists the
+ source files for each object file (i.e. it's derived from the
+ DEBUG_S_FILECHKSMS parts of the .debug$S sections). This is a bit
+ superfluous, as the filenames are also available in the C13 parts of
+ the module streams, but MSVC relies on it to work properly. */
+static void
+create_source_info_substream (void **data, uint32_t *size,
+ struct source_files_info *source)
+{
+ uint16_t dedupe_source_files_count = 0;
+ uint16_t source_files_count = 0;
+ uint32_t strings_len = 0;
+ uint8_t *ptr;
+
+ /* Loop through the source files, marking unique filenames. The pointers
+ here are for entries in the main string table, and so have already
+ been deduplicated. */
+
+ for (uint16_t i = 0; i < source->mod_count; i++)
+ {
+ for (uint16_t j = 0; j < source->mods[i].files_count; j++)
+ {
+ if (source->mods[i].files[j])
+ {
+ if (source->mods[i].files[j]->source_file_offset == 0xffffffff)
+ {
+ source->mods[i].files[j]->source_file_offset = strings_len;
+ strings_len += source->mods[i].files[j]->len + 1;
+ dedupe_source_files_count++;
+ }
+
+ source_files_count++;
+ }
+ }
+ }
+
+ *size = sizeof (uint16_t) + sizeof (uint16_t);
+ *size += (sizeof (uint16_t) + sizeof (uint16_t)) * source->mod_count;
+ *size += sizeof (uint32_t) * source_files_count;
+ *size += strings_len;
+
+ *data = xmalloc (*size);
+
+ ptr = (uint8_t *) *data;
+
+ /* Write header (module count and source file count). */
+
+ bfd_putl16 (source->mod_count, ptr);
+ ptr += sizeof (uint16_t);
+
+ bfd_putl16 (dedupe_source_files_count, ptr);
+ ptr += sizeof (uint16_t);
+
+ /* Write "ModIndices". As the LLVM documentation puts it, "this array is
+ present, but does not appear to be useful". */
+
+ for (uint16_t i = 0; i < source->mod_count; i++)
+ {
+ bfd_putl16 (i, ptr);
+ ptr += sizeof (uint16_t);
+ }
+
+ /* Write source file count for each module. */
+
+ for (uint16_t i = 0; i < source->mod_count; i++)
+ {
+ bfd_putl16 (source->mods[i].files_count, ptr);
+ ptr += sizeof (uint16_t);
+ }
+
+ /* For each module, write the offsets within the string table
+ for each source file. */
+
+ for (uint16_t i = 0; i < source->mod_count; i++)
+ {
+ for (uint16_t j = 0; j < source->mods[i].files_count; j++)
+ {
+ if (source->mods[i].files[j])
+ {
+ bfd_putl32 (source->mods[i].files[j]->source_file_offset, ptr);
+ ptr += sizeof (uint32_t);
+ }
+ }
+ }
+
+ /* Write the string table. We set source_file_offset to a dummy value for
+ each entry we write, so we don't write duplicate filenames. */
+
+ for (uint16_t i = 0; i < source->mod_count; i++)
+ {
+ for (uint16_t j = 0; j < source->mods[i].files_count; j++)
+ {
+ if (source->mods[i].files[j]
+ && source->mods[i].files[j]->source_file_offset != 0xffffffff)
+ {
+ memcpy (ptr, source->mods[i].files[j]->s,
+ source->mods[i].files[j]->len);
+ ptr += source->mods[i].files[j]->len;
+
+ *ptr = 0;
+ ptr++;
+
+ source->mods[i].files[j]->source_file_offset = 0xffffffff;
+ }
+ }
+ }
+}
+
+/* Used as parameter to qsort, to sort globals by hash. */
+static int
+global_compare_hash (const void *s1, const void *s2)
+{
+ const struct global *g1 = *(const struct global **) s1;
+ const struct global *g2 = *(const struct global **) s2;
+
+ if (g1->hash < g2->hash)
+ return -1;
+ if (g1->hash > g2->hash)
+ return 1;
+
+ return 0;
+}
+
+/* Create the globals stream, which contains the unmangled symbol names. */
+static bool
+create_globals_stream (bfd *pdb, struct globals *glob, uint16_t *stream_num)
+{
+ bfd *stream;
+ struct globals_hash_header h;
+ uint32_t buckets_size, filled_buckets = 0;
+ struct global **sorted = NULL;
+ bool ret = false;
+ struct global *buckets[NUM_GLOBALS_HASH_BUCKETS];
+ char int_buf[sizeof (uint32_t)];
+
+ stream = add_stream (pdb, NULL, stream_num);
+ if (!stream)
+ return false;
+
+ memset (buckets, 0, sizeof (buckets));
+
+ if (glob->num_entries > 0)
+ {
+ struct global *g;
+
+ /* Create an array of pointers, sorted by hash value. */
+
+ sorted = xmalloc (sizeof (struct global *) * glob->num_entries);
+
+ g = glob->first;
+ for (unsigned int i = 0; i < glob->num_entries; i++)
+ {
+ sorted[i] = g;
+ g = g->next;
+ }
+
+ qsort (sorted, glob->num_entries, sizeof (struct global *),
+ global_compare_hash);
+
+ /* Populate the buckets. */
+
+ for (unsigned int i = 0; i < glob->num_entries; i++)
+ {
+ if (!buckets[sorted[i]->hash])
+ {
+ buckets[sorted[i]->hash] = sorted[i];
+ filled_buckets++;
+ }
+
+ sorted[i]->index = i;
}
+ }
- bfd_putl32 (0, &mod->unused1);
-
- /* These are dummy values - MSVC copies the first section contribution
- entry here, but doesn't seem to use it for anything. */
- bfd_putl16 (0xffff, &mod->sc.section);
- bfd_putl16 (0, &mod->sc.padding1);
- bfd_putl32 (0, &mod->sc.offset);
- bfd_putl32 (0xffffffff, &mod->sc.size);
- bfd_putl32 (0, &mod->sc.characteristics);
- bfd_putl16 (0xffff, &mod->sc.module_index);
- bfd_putl16 (0, &mod->sc.padding2);
- bfd_putl32 (0, &mod->sc.data_crc);
- bfd_putl32 (0, &mod->sc.reloc_crc);
+ buckets_size = NUM_GLOBALS_HASH_BUCKETS / 8;
+ buckets_size += sizeof (uint32_t);
+ buckets_size += filled_buckets * sizeof (uint32_t);
- bfd_putl16 (0, &mod->flags);
- bfd_putl16 (stream_num, &mod->module_sym_stream);
- bfd_putl32 (sym_byte_size, &mod->sym_byte_size);
- bfd_putl32 (0, &mod->c11_byte_size);
- bfd_putl32 (0, &mod->c13_byte_size);
- bfd_putl16 (0, &mod->source_file_count);
- bfd_putl16 (0, &mod->padding);
- bfd_putl32 (0, &mod->unused2);
- bfd_putl32 (0, &mod->source_file_name_index);
- bfd_putl32 (0, &mod->pdb_file_path_name_index);
+ bfd_putl32 (GLOBALS_HASH_SIGNATURE, &h.signature);
+ bfd_putl32 (GLOBALS_HASH_VERSION_70, &h.version);
+ bfd_putl32 (glob->num_entries * sizeof (struct hash_record),
+ &h.entries_size);
+ bfd_putl32 (buckets_size, &h.buckets_size);
- ptr += sizeof (struct module_info);
+ if (bfd_write (&h, sizeof (h), stream) != sizeof (h))
+ return false;
- if (!strcmp (bfd_get_filename (in), "dll stuff"))
- {
- /* Object name. */
- memcpy (ptr, linker_fn, sizeof (linker_fn));
- ptr += sizeof (linker_fn);
+ /* Write hash entries, sorted by hash. */
- /* Empty module name. */
- *ptr = 0;
- ptr++;
- }
- else if (in->my_archive)
- {
- char *name = lrealpath (bfd_get_filename (in));
- size_t name_len = strlen (name) + 1;
+ for (unsigned int i = 0; i < glob->num_entries; i++)
+ {
+ struct hash_record hr;
- /* Object name. */
- memcpy (ptr, name, name_len);
- ptr += name_len;
+ bfd_putl32 (sorted[i]->offset + 1, &hr.offset);
+ bfd_putl32 (sorted[i]->refcount, &hr.reference);
- free (name);
+ if (bfd_write (&hr, sizeof (hr), stream) != sizeof (hr))
+ goto end;
+ }
- name = lrealpath (bfd_get_filename (in->my_archive));
- name_len = strlen (name) + 1;
+ /* Write the bitmap for filled and unfilled buckets. */
- /* Archive name. */
- memcpy (ptr, name, name_len);
- ptr += name_len;
+ for (unsigned int i = 0; i < NUM_GLOBALS_HASH_BUCKETS; i += 8)
+ {
+ uint8_t v = 0;
- free (name);
- }
- else
+ for (unsigned int j = 0; j < 8; j++)
{
- char *name = lrealpath (bfd_get_filename (in));
- size_t name_len = strlen (name) + 1;
+ if (buckets[i + j])
+ v |= 1 << j;
+ }
- /* Object name. */
- memcpy (ptr, name, name_len);
- ptr += name_len;
+ if (bfd_write (&v, sizeof (v), stream) != sizeof (v))
+ goto end;
+ }
- /* Object name again as archive name. */
- memcpy (ptr, name, name_len);
- ptr += name_len;
+ /* Add a 4-byte gap. */
- free (name);
- }
+ bfd_putl32 (0, int_buf);
- /* Pad to next four-byte boundary. */
+ if (bfd_write (int_buf, sizeof (uint32_t), stream) != sizeof (uint32_t))
+ goto end;
- if ((ptr - start) % 4)
+ /* Write the bucket offsets. */
+
+ for (unsigned int i = 0; i < NUM_GLOBALS_HASH_BUCKETS; i++)
+ {
+ if (buckets[i])
{
- memset (ptr, 0, 4 - ((ptr - start) % 4));
- ptr += 4 - ((ptr - start) % 4);
+ /* 0xc is size of internal hash_record structure in
+ Microsoft's parser. */
+ bfd_putl32 (buckets[i]->index * 0xc, int_buf);
+
+ if (bfd_write (int_buf, sizeof (uint32_t), stream) !=
+ sizeof (uint32_t))
+ goto end;
}
}
- return true;
+ ret = true;
+
+end:
+ free (sorted);
+
+ return ret;
}
-/* Return the index of a given output section. */
-static uint16_t
-find_section_number (bfd *abfd, asection *sect)
+/* Hash an entry in the globals list. */
+static hashval_t
+hash_global_entry (const void *p)
{
- uint16_t i = 1;
+ const struct global *g = (const struct global *) p;
+ uint16_t len = bfd_getl16 (g->data);
- for (asection *s = abfd->sections; s; s = s->next)
- {
- if (s == sect)
- return i;
+ return iterative_hash (g->data, len, 0);
+}
- /* Empty sections aren't output. */
- if (s->size != 0)
- i++;
- }
+/* Compare an entry in the globals list with a symbol. */
+static int
+eq_global_entry (const void *a, const void *b)
+{
+ const struct global *g = (const struct global *) a;
+ uint16_t len1, len2;
- return 0;
+ len1 = bfd_getl16 (g->data) + sizeof (uint16_t);
+ len2 = bfd_getl16 (b) + sizeof (uint16_t);
+
+ if (len1 != len2)
+ return 0;
+
+ return !memcmp (g->data, b, len1);
}
/* Stream 4 is the debug information (DBI) stream. */
populate_dbi_stream (bfd *stream, bfd *abfd, bfd *pdb,
uint16_t section_header_stream_num,
uint16_t sym_rec_stream_num,
- uint16_t publics_stream_num)
+ uint16_t publics_stream_num,
+ struct string_table *strings,
+ struct types *types,
+ struct types *ids,
+ bfd *sym_rec_stream, const char *pdb_name)
{
struct pdb_dbi_stream_header h;
struct optional_dbg_header opt;
- void *mod_info;
- uint32_t mod_info_size;
+ void *mod_info, *sc, *source_info;
+ uint32_t mod_info_size, sc_size, source_info_size;
+ struct source_files_info source;
+ struct globals glob;
+ uint16_t globals_stream_num;
- if (!create_module_info_substream (abfd, pdb, &mod_info, &mod_info_size))
- return false;
+ source.mod_count = 0;
+ source.mods = NULL;
+
+ glob.num_entries = 0;
+ glob.first = NULL;
+ glob.last = NULL;
+
+ glob.hashmap = htab_create_alloc (0, hash_global_entry,
+ eq_global_entry, free, xcalloc, free);
+
+ if (!create_module_info_substream (abfd, pdb, &mod_info, &mod_info_size,
+ strings, &source, types, ids,
+ sym_rec_stream, &glob, pdb_name))
+ {
+ htab_delete (glob.hashmap);
+ return false;
+ }
+
+ if (!create_globals_stream (pdb, &glob, &globals_stream_num))
+ {
+ htab_delete (glob.hashmap);
+
+ for (unsigned int i = 0; i < source.mod_count; i++)
+ {
+ free (source.mods[i].files);
+ }
+ free (source.mods);
+
+ free (mod_info);
+ return false;
+ }
+
+ htab_delete (glob.hashmap);
+
+ if (!create_section_contrib_substream (abfd, &sc, &sc_size))
+ {
+ for (unsigned int i = 0; i < source.mod_count; i++)
+ {
+ free (source.mods[i].files);
+ }
+ free (source.mods);
+
+ free (mod_info);
+ return false;
+ }
+
+ create_source_info_substream (&source_info, &source_info_size, &source);
+
+ for (unsigned int i = 0; i < source.mod_count; i++)
+ {
+ free (source.mods[i].files);
+ }
+ free (source.mods);
bfd_putl32 (0xffffffff, &h.version_signature);
bfd_putl32 (DBI_STREAM_VERSION_70, &h.version_header);
bfd_putl32 (1, &h.age);
- bfd_putl16 (0xffff, &h.global_stream_index);
+ bfd_putl16 (globals_stream_num, &h.global_stream_index);
bfd_putl16 (0x8e1d, &h.build_number); // MSVC 14.29
bfd_putl16 (publics_stream_num, &h.public_stream_index);
bfd_putl16 (0, &h.pdb_dll_version);
bfd_putl16 (sym_rec_stream_num, &h.sym_record_stream);
bfd_putl16 (0, &h.pdb_dll_rbld);
bfd_putl32 (mod_info_size, &h.mod_info_size);
- bfd_putl32 (0, &h.section_contribution_size);
+ bfd_putl32 (sc_size, &h.section_contribution_size);
bfd_putl32 (0, &h.section_map_size);
- bfd_putl32 (0, &h.source_info_size);
+ bfd_putl32 (source_info_size, &h.source_info_size);
bfd_putl32 (0, &h.type_server_map_size);
bfd_putl32 (0, &h.mfc_type_server_index);
bfd_putl32 (sizeof (opt), &h.optional_dbg_header_size);
bfd_putl16 (get_arch_number (abfd), &h.machine);
bfd_putl32 (0, &h.padding);
- if (bfd_bwrite (&h, sizeof (h), stream) != sizeof (h))
+ if (bfd_write (&h, sizeof (h), stream) != sizeof (h))
{
+ free (source_info);
+ free (sc);
free (mod_info);
return false;
}
- if (bfd_bwrite (mod_info, mod_info_size, stream) != mod_info_size)
+ if (bfd_write (mod_info, mod_info_size, stream) != mod_info_size)
{
+ free (source_info);
+ free (sc);
free (mod_info);
return false;
}
free (mod_info);
+ if (bfd_write (sc, sc_size, stream) != sc_size)
+ {
+ free (source_info);
+ free (sc);
+ return false;
+ }
+
+ free (sc);
+
+ if (bfd_write (source_info, source_info_size, stream) != source_info_size)
+ {
+ free (source_info);
+ return false;
+ }
+
+ free (source_info);
+
bfd_putl16 (0xffff, &opt.fpo_stream);
bfd_putl16 (0xffff, &opt.exception_stream);
bfd_putl16 (0xffff, &opt.fixup_stream);
bfd_putl16 (0xffff, &opt.new_fpo_stream);
bfd_putl16 (0xffff, &opt.orig_section_header_stream);
- if (bfd_bwrite (&opt, sizeof (opt), stream) != sizeof (opt))
+ if (bfd_write (&opt, sizeof (opt), stream) != sizeof (opt))
return false;
return true;
for (bfd *in = coff_data (abfd)->link_info->input_bfds; in;
in = in->link.next)
{
+ if (!in->outsymbols)
+ continue;
+
for (unsigned int i = 0; i < in->symcount; i++)
{
struct bfd_symbol *sym = in->outsymbols[i];
bfd_putl32 (p->address, &ps.offset);
bfd_putl16 (p->section, &ps.section);
- if (bfd_bwrite (&ps, sizeof (struct pubsym), sym_rec_stream) !=
+ if (bfd_write (&ps, sizeof (struct pubsym), sym_rec_stream) !=
sizeof (struct pubsym))
goto end;
- if (bfd_bwrite (name, name_len + 1, sym_rec_stream) !=
+ if (bfd_write (name, name_len + 1, sym_rec_stream) !=
name_len + 1)
goto end;
{
uint8_t b = 0;
- if (bfd_bwrite (&b, sizeof (uint8_t), sym_rec_stream) !=
+ if (bfd_write (&b, sizeof (uint8_t), sym_rec_stream) !=
sizeof (uint8_t))
goto end;
}
bfd_putl32 (0, &header.thunk_table_offset);
bfd_putl32 (0, &header.num_sects);
- if (bfd_bwrite (&header, sizeof (header), stream) != sizeof (header))
+ if (bfd_write (&header, sizeof (header), stream) != sizeof (header))
goto end;
/* Output the global hash header. */
&hash_header.entries_size);
bfd_putl32 (buckets_size, &hash_header.buckets_size);
- if (bfd_bwrite (&hash_header, sizeof (hash_header), stream) !=
+ if (bfd_write (&hash_header, sizeof (hash_header), stream) !=
sizeof (hash_header))
goto end;
bfd_putl32 (sorted[i]->offset + 1, &hr.offset);
bfd_putl32 (1, &hr.reference);
- if (bfd_bwrite (&hr, sizeof (hr), stream) != sizeof (hr))
+ if (bfd_write (&hr, sizeof (hr), stream) != sizeof (hr))
goto end;
}
v |= 1 << j;
}
- if (bfd_bwrite (&v, sizeof (v), stream) != sizeof (v))
+ if (bfd_write (&v, sizeof (v), stream) != sizeof (v))
goto end;
}
bfd_putl32 (0, int_buf);
- if (bfd_bwrite (int_buf, sizeof (uint32_t), stream) != sizeof (uint32_t))
+ if (bfd_write (int_buf, sizeof (uint32_t), stream) != sizeof (uint32_t))
goto end;
/* Write the bucket offsets. */
Microsoft's parser. */
bfd_putl32 (buckets[i]->index * 0xc, int_buf);
- if (bfd_bwrite (int_buf, sizeof (uint32_t), stream) !=
+ if (bfd_write (int_buf, sizeof (uint32_t), stream) !=
sizeof (uint32_t))
goto end;
}
{
bfd_putl32 (sorted[i]->offset, int_buf);
- if (bfd_bwrite (int_buf, sizeof (uint32_t), stream) !=
+ if (bfd_write (int_buf, sizeof (uint32_t), stream) !=
sizeof (uint32_t))
goto end;
}
scn_base = bfd_coff_filhsz (abfd) + bfd_coff_aoutsz (abfd);
- bfd_seek (abfd, scn_base, SEEK_SET);
+ if (bfd_seek (abfd, scn_base, SEEK_SET) != 0)
+ return false;
len = section_count * sizeof (struct external_scnhdr);
buf = xmalloc (len);
- if (bfd_bread (buf, len, abfd) != len)
+ if (bfd_read (buf, len, abfd) != len)
{
free (buf);
return false;
}
- if (bfd_bwrite (buf, len, stream) != len)
+ if (bfd_write (buf, len, stream) != len)
{
free (buf);
return false;
return true;
}
+/* Populate the "/names" named stream, which contains the string table. */
+static bool
+populate_names_stream (bfd *stream, struct string_table *strings)
+{
+ char int_buf[sizeof (uint32_t)];
+ struct string_table_header h;
+ uint32_t num_strings = 0, num_buckets;
+ struct string **buckets;
+
+ bfd_putl32 (STRING_TABLE_SIGNATURE, &h.signature);
+ bfd_putl32 (STRING_TABLE_VERSION, &h.version);
+
+ if (bfd_write (&h, sizeof (h), stream) != sizeof (h))
+ return false;
+
+ bfd_putl32 (strings->strings_len, int_buf);
+
+ if (bfd_write (int_buf, sizeof (uint32_t), stream) != sizeof (uint32_t))
+ return false;
+
+ int_buf[0] = 0;
+
+ if (bfd_write (int_buf, 1, stream) != 1)
+ return false;
+
+ for (struct string *s = strings->strings_head; s; s = s->next)
+ {
+ if (bfd_write (s->s, s->len, stream) != s->len)
+ return false;
+
+ if (bfd_write (int_buf, 1, stream) != 1)
+ return false;
+
+ num_strings++;
+ }
+
+ num_buckets = num_strings * 2;
+
+ buckets = xmalloc (sizeof (struct string *) * num_buckets);
+ memset (buckets, 0, sizeof (struct string *) * num_buckets);
+
+ for (struct string *s = strings->strings_head; s; s = s->next)
+ {
+ uint32_t bucket_num = s->hash % num_buckets;
+
+ while (buckets[bucket_num])
+ {
+ bucket_num++;
+
+ if (bucket_num == num_buckets)
+ bucket_num = 0;
+ }
+
+ buckets[bucket_num] = s;
+ }
+
+ bfd_putl32 (num_buckets, int_buf);
+
+ if (bfd_write (int_buf, sizeof (uint32_t), stream) != sizeof (uint32_t))
+ {
+ free (buckets);
+ return false;
+ }
+
+ for (unsigned int i = 0; i < num_buckets; i++)
+ {
+ if (buckets[i])
+ bfd_putl32 (buckets[i]->offset, int_buf);
+ else
+ bfd_putl32 (0, int_buf);
+
+ if (bfd_write (int_buf, sizeof (uint32_t), stream) !=
+ sizeof (uint32_t))
+ {
+ free (buckets);
+ return false;
+ }
+ }
+
+ free (buckets);
+
+ bfd_putl32 (num_strings, int_buf);
+
+ if (bfd_write (int_buf, sizeof (uint32_t), stream) != sizeof (uint32_t))
+ return false;
+
+ return true;
+}
+
+/* Calculate the hash of a type_entry. */
+static hashval_t
+hash_type_entry (const void *p)
+{
+ const struct type_entry *e = (const struct type_entry *) p;
+ uint16_t size = bfd_getl16 (e->data) + sizeof (uint16_t);
+
+ return iterative_hash (e->data, size, 0);
+}
+
+/* Compare a type_entry with a type. */
+static int
+eq_type_entry (const void *a, const void *b)
+{
+ const struct type_entry *e = (const struct type_entry *) a;
+ uint16_t size_a = bfd_getl16 (e->data);
+ uint16_t size_b = bfd_getl16 (b);
+
+ if (size_a != size_b)
+ return 0;
+
+ return memcmp (e->data + sizeof (uint16_t),
+ (const uint8_t *) b + sizeof (uint16_t), size_a) == 0;
+}
+
/* Create a PDB debugging file for the PE image file abfd with the build ID
guid, stored at pdb_name. */
bool
bfd *pdb;
bool ret = false;
bfd *info_stream, *dbi_stream, *names_stream, *sym_rec_stream,
- *publics_stream;
+ *publics_stream, *tpi_stream, *ipi_stream;
uint16_t section_header_stream_num, sym_rec_stream_num, publics_stream_num;
+ struct string_table strings;
+ struct types types, ids;
pdb = bfd_openw (pdb_name, "pdb");
if (!pdb)
return false;
}
+ strings.strings_head = NULL;
+ strings.strings_tail = NULL;
+ strings.strings_len = 1;
+ strings.hashmap = htab_create_alloc (0, hash_string_table_entry,
+ eq_string_table_entry, free,
+ xcalloc, free);
+
bfd_set_format (pdb, bfd_archive);
if (!create_old_directory_stream (pdb))
goto end;
}
- if (!create_type_stream (pdb))
+ tpi_stream = add_stream (pdb, NULL, NULL);
+
+ if (!tpi_stream)
{
einfo (_("%P: warning: cannot create TPI stream "
"in PDB file: %E\n"));
goto end;
}
- if (!create_type_stream (pdb))
+ ipi_stream = add_stream (pdb, NULL, NULL);
+
+ if (!ipi_stream)
{
einfo (_("%P: warning: cannot create IPI stream "
"in PDB file: %E\n"));
goto end;
}
+ types.num_types = 0;
+ types.hashmap = htab_create_alloc (0, hash_type_entry, eq_type_entry,
+ free, xcalloc, free);
+ types.first = types.last = NULL;
+
+ ids.num_types = 0;
+ ids.hashmap = htab_create_alloc (0, hash_type_entry, eq_type_entry,
+ free, xcalloc, free);
+ ids.first = ids.last = NULL;
+
if (!populate_dbi_stream (dbi_stream, abfd, pdb, section_header_stream_num,
- sym_rec_stream_num, publics_stream_num))
+ sym_rec_stream_num, publics_stream_num,
+ &strings, &types, &ids, sym_rec_stream, pdb_name))
{
einfo (_("%P: warning: cannot populate DBI stream "
"in PDB file: %E\n"));
+ htab_delete (types.hashmap);
+ htab_delete (ids.hashmap);
+ goto end;
+ }
+
+ if (!populate_type_stream (pdb, tpi_stream, &types))
+ {
+ einfo (_("%P: warning: cannot populate TPI stream "
+ "in PDB file: %E\n"));
+ htab_delete (types.hashmap);
+ htab_delete (ids.hashmap);
+ goto end;
+ }
+
+ htab_delete (types.hashmap);
+
+ if (!populate_type_stream (pdb, ipi_stream, &ids))
+ {
+ einfo (_("%P: warning: cannot populate IPI stream "
+ "in PDB file: %E\n"));
+ htab_delete (ids.hashmap);
+ goto end;
+ }
+
+ htab_delete (ids.hashmap);
+
+ add_string ("", 0, &strings);
+
+ if (!populate_names_stream (names_stream, &strings))
+ {
+ einfo (_("%P: warning: cannot populate names stream "
+ "in PDB file: %E\n"));
goto end;
}
end:
bfd_close (pdb);
+ htab_delete (strings.hashmap);
+
return ret;
}
projects / binutils-gdb.git / blobdiff