/* DWARF 2 support.
- Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003
- Free Software Foundation, Inc.
+ Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
+ 2004 Free Software Foundation, Inc.
Adapted from gdb/dwarf2read.c by Gavin Koch of Cygnus Solutions
(gavin@cygnus.com).
#define ATTR_ALLOC_CHUNK 4
#endif
-static unsigned int read_1_byte PARAMS ((bfd *, char *));
-static int read_1_signed_byte PARAMS ((bfd *, char *));
-static unsigned int read_2_bytes PARAMS ((bfd *, char *));
-static unsigned int read_4_bytes PARAMS ((bfd *, char *));
-static bfd_vma read_8_bytes PARAMS ((bfd *, char *));
-static char *read_n_bytes PARAMS ((bfd *, char *, unsigned int));
-static char *read_string PARAMS ((bfd *, char *, unsigned int *));
-static char *read_indirect_string PARAMS ((struct comp_unit *, char *, unsigned int *));
-static unsigned int read_unsigned_leb128
- PARAMS ((bfd *, char *, unsigned int *));
-static int read_signed_leb128
- PARAMS ((bfd *, char *, unsigned int *));
-static bfd_vma read_address PARAMS ((struct comp_unit *, char *));
-static struct abbrev_info *lookup_abbrev
- PARAMS ((unsigned int, struct abbrev_info **));
-static struct abbrev_info **read_abbrevs
- PARAMS ((bfd *, bfd_vma, struct dwarf2_debug *));
-static char *read_attribute
- PARAMS ((struct attribute *, struct attr_abbrev *,
- struct comp_unit *, char *));
-static char *read_attribute_value
- PARAMS ((struct attribute *, unsigned,
- struct comp_unit *, char *));
-static void add_line_info
- PARAMS ((struct line_info_table *, bfd_vma, char *,
- unsigned int, unsigned int, int));
-static char *concat_filename PARAMS ((struct line_info_table *, unsigned int));
-static void arange_add PARAMS ((struct comp_unit *, bfd_vma, bfd_vma));
-static struct line_info_table *decode_line_info
- PARAMS ((struct comp_unit *, struct dwarf2_debug *));
-static bfd_boolean lookup_address_in_line_info_table
- PARAMS ((struct line_info_table *, bfd_vma, struct funcinfo *,
- const char **, unsigned int *));
-static bfd_boolean lookup_address_in_function_table
- PARAMS ((struct funcinfo *, bfd_vma, struct funcinfo **, const char **));
-static bfd_boolean scan_unit_for_functions PARAMS ((struct comp_unit *));
-static struct comp_unit *parse_comp_unit
- PARAMS ((bfd *, struct dwarf2_debug *, bfd_vma, unsigned int));
-static bfd_boolean comp_unit_contains_address
- PARAMS ((struct comp_unit *, bfd_vma));
-static bfd_boolean comp_unit_find_nearest_line
- PARAMS ((struct comp_unit *, bfd_vma, const char **, const char **,
- unsigned int *, struct dwarf2_debug *));
-static asection *find_debug_info PARAMS ((bfd *, asection *));
-
/* VERBATIM
The following function up to the END VERBATIM mark are
copied directly from dwarf2read.c. */
/* Read dwarf information from a buffer. */
static unsigned int
-read_1_byte (abfd, buf)
- bfd *abfd ATTRIBUTE_UNUSED;
- char *buf;
+read_1_byte (bfd *abfd ATTRIBUTE_UNUSED, char *buf)
{
- return bfd_get_8 (abfd, (bfd_byte *) buf);
+ return bfd_get_8 (abfd, buf);
}
static int
-read_1_signed_byte (abfd, buf)
- bfd *abfd ATTRIBUTE_UNUSED;
- char *buf;
+read_1_signed_byte (bfd *abfd ATTRIBUTE_UNUSED, char *buf)
{
- return bfd_get_signed_8 (abfd, (bfd_byte *) buf);
+ return bfd_get_signed_8 (abfd, buf);
}
static unsigned int
-read_2_bytes (abfd, buf)
- bfd *abfd;
- char *buf;
-{
- return bfd_get_16 (abfd, (bfd_byte *) buf);
-}
-
-#if 0 /* This is not used. */
-
-static int
-read_2_signed_bytes (abfd, buf)
- bfd *abfd;
- char *buf;
+read_2_bytes (bfd *abfd, char *buf)
{
- return bfd_get_signed_16 (abfd, (bfd_byte *) buf);
+ return bfd_get_16 (abfd, buf);
}
-#endif
-
static unsigned int
-read_4_bytes (abfd, buf)
- bfd *abfd;
- char *buf;
+read_4_bytes (bfd *abfd, char *buf)
{
- return bfd_get_32 (abfd, (bfd_byte *) buf);
+ return bfd_get_32 (abfd, buf);
}
-#if 0 /* This is not used. */
-
-static int
-read_4_signed_bytes (abfd, buf)
- bfd *abfd;
- char *buf;
-{
- return bfd_get_signed_32 (abfd, (bfd_byte *) buf);
-}
-
-#endif
-
static bfd_vma
-read_8_bytes (abfd, buf)
- bfd *abfd;
- char *buf;
+read_8_bytes (bfd *abfd, char *buf)
{
- return bfd_get_64 (abfd, (bfd_byte *) buf);
+ return bfd_get_64 (abfd, buf);
}
static char *
-read_n_bytes (abfd, buf, size)
- bfd *abfd ATTRIBUTE_UNUSED;
- char *buf;
- unsigned int size ATTRIBUTE_UNUSED;
+read_n_bytes (bfd *abfd ATTRIBUTE_UNUSED,
+ char *buf,
+ unsigned int size ATTRIBUTE_UNUSED)
{
/* If the size of a host char is 8 bits, we can return a pointer
to the buffer, otherwise we have to copy the data to a buffer
}
static char *
-read_string (abfd, buf, bytes_read_ptr)
- bfd *abfd ATTRIBUTE_UNUSED;
- char *buf;
- unsigned int *bytes_read_ptr;
+read_string (bfd *abfd ATTRIBUTE_UNUSED,
+ char *buf,
+ unsigned int *bytes_read_ptr)
{
/* Return a pointer to the embedded string. */
if (*buf == '\0')
}
static char *
-read_indirect_string (unit, buf, bytes_read_ptr)
- struct comp_unit* unit;
- char *buf;
- unsigned int *bytes_read_ptr;
+read_indirect_string (struct comp_unit* unit,
+ char *buf,
+ unsigned int *bytes_read_ptr)
{
bfd_vma offset;
struct dwarf2_debug *stash = unit->stash;
}
stash->dwarf_str_size = msec->_raw_size;
- stash->dwarf_str_buffer = (char*) bfd_alloc (abfd, msec->_raw_size);
+ stash->dwarf_str_buffer = bfd_alloc (abfd, msec->_raw_size);
if (! stash->dwarf_abbrev_buffer)
return NULL;
if (! bfd_get_section_contents (abfd, msec, stash->dwarf_str_buffer,
- (bfd_vma) 0, msec->_raw_size))
+ 0, msec->_raw_size))
return NULL;
}
}
static unsigned int
-read_unsigned_leb128 (abfd, buf, bytes_read_ptr)
- bfd *abfd ATTRIBUTE_UNUSED;
- char *buf;
- unsigned int *bytes_read_ptr;
+read_unsigned_leb128 (bfd *abfd ATTRIBUTE_UNUSED,
+ char *buf,
+ unsigned int *bytes_read_ptr)
{
unsigned int result;
unsigned int num_read;
do
{
- byte = bfd_get_8 (abfd, (bfd_byte *) buf);
+ byte = bfd_get_8 (abfd, buf);
buf ++;
num_read ++;
result |= ((byte & 0x7f) << shift);
}
static int
-read_signed_leb128 (abfd, buf, bytes_read_ptr)
- bfd *abfd ATTRIBUTE_UNUSED;
- char *buf;
- unsigned int * bytes_read_ptr;
+read_signed_leb128 (bfd *abfd ATTRIBUTE_UNUSED,
+ char *buf,
+ unsigned int * bytes_read_ptr)
{
int result;
int shift;
do
{
- byte = bfd_get_8 (abfd, (bfd_byte *) buf);
+ byte = bfd_get_8 (abfd, buf);
buf ++;
num_read ++;
result |= ((byte & 0x7f) << shift);
/* END VERBATIM */
static bfd_vma
-read_address (unit, buf)
- struct comp_unit* unit;
- char *buf;
+read_address (struct comp_unit *unit, char *buf)
{
switch (unit->addr_size)
{
case 8:
- return bfd_get_64 (unit->abfd, (bfd_byte *) buf);
+ return bfd_get_64 (unit->abfd, buf);
case 4:
- return bfd_get_32 (unit->abfd, (bfd_byte *) buf);
+ return bfd_get_32 (unit->abfd, buf);
case 2:
- return bfd_get_16 (unit->abfd, (bfd_byte *) buf);
+ return bfd_get_16 (unit->abfd, buf);
default:
abort ();
}
/* Lookup an abbrev_info structure in the abbrev hash table. */
static struct abbrev_info *
-lookup_abbrev (number,abbrevs)
- unsigned int number;
- struct abbrev_info **abbrevs;
+lookup_abbrev (unsigned int number, struct abbrev_info **abbrevs)
{
unsigned int hash_number;
struct abbrev_info *abbrev;
in a hash table. */
static struct abbrev_info**
-read_abbrevs (abfd, offset, stash)
- bfd * abfd;
- bfd_vma offset;
- struct dwarf2_debug *stash;
+read_abbrevs (bfd *abfd, bfd_vma offset, struct dwarf2_debug *stash)
{
struct abbrev_info **abbrevs;
char *abbrev_ptr;
}
amt = sizeof (struct abbrev_info*) * ABBREV_HASH_SIZE;
- abbrevs = (struct abbrev_info**) bfd_zalloc (abfd, amt);
+ abbrevs = bfd_zalloc (abfd, amt);
abbrev_ptr = stash->dwarf_abbrev_buffer + offset;
abbrev_number = read_unsigned_leb128 (abfd, abbrev_ptr, &bytes_read);
while (abbrev_number)
{
amt = sizeof (struct abbrev_info);
- cur_abbrev = (struct abbrev_info *) bfd_zalloc (abfd, amt);
+ cur_abbrev = bfd_zalloc (abfd, amt);
/* Read in abbrev header. */
cur_abbrev->number = abbrev_number;
{
amt = cur_abbrev->num_attrs + ATTR_ALLOC_CHUNK;
amt *= sizeof (struct attr_abbrev);
- cur_abbrev->attrs = ((struct attr_abbrev *)
- bfd_realloc (cur_abbrev->attrs, amt));
+ cur_abbrev->attrs = bfd_realloc (cur_abbrev->attrs, amt);
if (! cur_abbrev->attrs)
return 0;
}
/* Read an attribute value described by an attribute form. */
static char *
-read_attribute_value (attr, form, unit, info_ptr)
- struct attribute *attr;
- unsigned form;
- struct comp_unit *unit;
- char *info_ptr;
+read_attribute_value (struct attribute *attr,
+ unsigned form,
+ struct comp_unit *unit,
+ char *info_ptr)
{
bfd *abfd = unit->abfd;
unsigned int bytes_read;
break;
case DW_FORM_block2:
amt = sizeof (struct dwarf_block);
- blk = (struct dwarf_block *) bfd_alloc (abfd, amt);
+ blk = bfd_alloc (abfd, amt);
blk->size = read_2_bytes (abfd, info_ptr);
info_ptr += 2;
blk->data = read_n_bytes (abfd, info_ptr, blk->size);
break;
case DW_FORM_block4:
amt = sizeof (struct dwarf_block);
- blk = (struct dwarf_block *) bfd_alloc (abfd, amt);
+ blk = bfd_alloc (abfd, amt);
blk->size = read_4_bytes (abfd, info_ptr);
info_ptr += 4;
blk->data = read_n_bytes (abfd, info_ptr, blk->size);
break;
case DW_FORM_block:
amt = sizeof (struct dwarf_block);
- blk = (struct dwarf_block *) bfd_alloc (abfd, amt);
+ blk = bfd_alloc (abfd, amt);
blk->size = read_unsigned_leb128 (abfd, info_ptr, &bytes_read);
info_ptr += bytes_read;
blk->data = read_n_bytes (abfd, info_ptr, blk->size);
break;
case DW_FORM_block1:
amt = sizeof (struct dwarf_block);
- blk = (struct dwarf_block *) bfd_alloc (abfd, amt);
+ blk = bfd_alloc (abfd, amt);
blk->size = read_1_byte (abfd, info_ptr);
info_ptr += 1;
blk->data = read_n_bytes (abfd, info_ptr, blk->size);
/* Read an attribute described by an abbreviated attribute. */
static char *
-read_attribute (attr, abbrev, unit, info_ptr)
- struct attribute *attr;
- struct attr_abbrev *abbrev;
- struct comp_unit *unit;
- char *info_ptr;
+read_attribute (struct attribute *attr,
+ struct attr_abbrev *abbrev,
+ struct comp_unit *unit,
+ char *info_ptr)
{
attr->name = abbrev->name;
info_ptr = read_attribute_value (attr, abbrev->form, unit, info_ptr);
line_info->prev_line always accesses an equal or smaller VMA. */
static void
-add_line_info (table, address, filename, line, column, end_sequence)
- struct line_info_table* table;
- bfd_vma address;
- char* filename;
- unsigned int line;
- unsigned int column;
- int end_sequence;
+add_line_info (struct line_info_table *table,
+ bfd_vma address,
+ char *filename,
+ unsigned int line,
+ unsigned int column,
+ int end_sequence)
{
bfd_size_type amt = sizeof (struct line_info);
- struct line_info* info = (struct line_info*) bfd_alloc (table->abfd, amt);
+ struct line_info* info = bfd_alloc (table->abfd, amt);
/* Find the correct location for 'info'. Normally we will receive
new line_info data 1) in order and 2) with increasing VMAs.
responsibility to free it. */
static char *
-concat_filename (table, file)
- struct line_info_table* table;
- unsigned int file;
+concat_filename (struct line_info_table *table, unsigned int file)
{
char* filename;
}
static void
-arange_add (unit, low_pc, high_pc)
- struct comp_unit *unit;
- bfd_vma low_pc;
- bfd_vma high_pc;
+arange_add (struct comp_unit *unit, bfd_vma low_pc, bfd_vma high_pc)
{
struct arange *arange;
}
/* Need to allocate a new arange and insert it into the arange list. */
- arange = (struct arange *)
- bfd_zalloc (unit->abfd, (bfd_size_type) sizeof (*arange));
+ arange = bfd_zalloc (unit->abfd, sizeof (*arange));
arange->low = low_pc;
arange->high = high_pc;
/* Decode the line number information for UNIT. */
static struct line_info_table*
-decode_line_info (unit, stash)
- struct comp_unit *unit;
- struct dwarf2_debug *stash;
+decode_line_info (struct comp_unit *unit, struct dwarf2_debug *stash)
{
bfd *abfd = unit->abfd;
struct line_info_table* table;
}
amt = sizeof (struct line_info_table);
- table = (struct line_info_table*) bfd_alloc (abfd, amt);
+ table = bfd_alloc (abfd, amt);
table->abfd = abfd;
table->comp_dir = unit->comp_dir;
lh.opcode_base = read_1_byte (abfd, line_ptr);
line_ptr += 1;
amt = lh.opcode_base * sizeof (unsigned char);
- lh.standard_opcode_lengths = (unsigned char *) bfd_alloc (abfd, amt);
+ lh.standard_opcode_lengths = bfd_alloc (abfd, amt);
lh.standard_opcode_lengths[0] = 1;
{
amt = table->num_dirs + DIR_ALLOC_CHUNK;
amt *= sizeof (char *);
- table->dirs = (char **) bfd_realloc (table->dirs, amt);
+ table->dirs = bfd_realloc (table->dirs, amt);
if (! table->dirs)
return 0;
}
{
amt = table->num_files + FILE_ALLOC_CHUNK;
amt *= sizeof (struct fileinfo);
- table->files = (struct fileinfo *) bfd_realloc (table->files, amt);
+ table->files = bfd_realloc (table->files, amt);
if (! table->files)
return 0;
}
{
amt = table->num_files + FILE_ALLOC_CHUNK;
amt *= sizeof (struct fileinfo);
- table->files =
- (struct fileinfo *) bfd_realloc (table->files, amt);
+ table->files = bfd_realloc (table->files, amt);
if (! table->files)
return 0;
}
LINENUMBER_PTR, are pointers to the objects to be filled in. */
static bfd_boolean
-lookup_address_in_line_info_table (table, addr, function, filename_ptr,
- linenumber_ptr)
- struct line_info_table* table;
- bfd_vma addr;
- struct funcinfo *function;
- const char **filename_ptr;
- unsigned int *linenumber_ptr;
+lookup_address_in_line_info_table (struct line_info_table *table,
+ bfd_vma addr,
+ struct funcinfo *function,
+ const char **filename_ptr,
+ unsigned int *linenumber_ptr)
{
/* Note: table->last_line should be a descendingly sorted list. */
struct line_info* next_line = table->last_line;
/* If ADDR is within TABLE, set FUNCTIONNAME_PTR, and return TRUE. */
static bfd_boolean
-lookup_address_in_function_table (table, addr, function_ptr,
- functionname_ptr)
- struct funcinfo* table;
- bfd_vma addr;
- struct funcinfo** function_ptr;
- const char **functionname_ptr;
+lookup_address_in_function_table (struct funcinfo *table,
+ bfd_vma addr,
+ struct funcinfo **function_ptr,
+ const char **functionname_ptr)
{
struct funcinfo* each_func;
to the function table. */
static bfd_boolean
-scan_unit_for_functions (unit)
- struct comp_unit *unit;
+scan_unit_for_functions (struct comp_unit *unit)
{
bfd *abfd = unit->abfd;
char *info_ptr = unit->first_child_die_ptr;
if (abbrev->tag == DW_TAG_subprogram)
{
bfd_size_type amt = sizeof (struct funcinfo);
- func = (struct funcinfo *) bfd_zalloc (abfd, amt);
+ func = bfd_zalloc (abfd, amt);
func->prev_func = unit->function_table;
unit->function_table = func;
}
to get to the line number information for the compilation unit. */
static struct comp_unit *
-parse_comp_unit (abfd, stash, unit_length, offset_size)
- bfd* abfd;
- struct dwarf2_debug *stash;
- bfd_vma unit_length;
- unsigned int offset_size;
+parse_comp_unit (bfd *abfd,
+ struct dwarf2_debug *stash,
+ bfd_vma unit_length,
+ unsigned int offset_size)
{
struct comp_unit* unit;
unsigned int version;
}
amt = sizeof (struct comp_unit);
- unit = (struct comp_unit*) bfd_zalloc (abfd, amt);
+ unit = bfd_zalloc (abfd, amt);
unit->abfd = abfd;
unit->addr_size = addr_size;
unit->offset_size = offset_size;
{
/* Irix 6.2 native cc prepends <machine>.: to the compilation
directory, get rid of it. */
- char *cp = (char*) strchr (comp_dir, ':');
+ char *cp = strchr (comp_dir, ':');
if (cp && cp != comp_dir && cp[-1] == '.' && cp[1] == '/')
comp_dir = cp + 1;
/* Return TRUE if UNIT contains the address given by ADDR. */
static bfd_boolean
-comp_unit_contains_address (unit, addr)
- struct comp_unit* unit;
- bfd_vma addr;
+comp_unit_contains_address (struct comp_unit *unit, bfd_vma addr)
{
struct arange *arange;
FALSE otherwise. */
static bfd_boolean
-comp_unit_find_nearest_line (unit, addr, filename_ptr, functionname_ptr,
- linenumber_ptr, stash)
- struct comp_unit* unit;
- bfd_vma addr;
- const char **filename_ptr;
- const char **functionname_ptr;
- unsigned int *linenumber_ptr;
- struct dwarf2_debug *stash;
+comp_unit_find_nearest_line (struct comp_unit *unit,
+ bfd_vma addr,
+ const char **filename_ptr,
+ const char **functionname_ptr,
+ unsigned int *linenumber_ptr,
+ struct dwarf2_debug *stash)
{
bfd_boolean line_p;
bfd_boolean func_p;
#define GNU_LINKONCE_INFO ".gnu.linkonce.wi."
static asection *
-find_debug_info (abfd, after_sec)
- bfd * abfd;
- asection * after_sec;
+find_debug_info (bfd *abfd, asection *after_sec)
{
asection * msec;
used. */
bfd_boolean
-_bfd_dwarf2_find_nearest_line (abfd, section, symbols, offset,
- filename_ptr, functionname_ptr,
- linenumber_ptr, addr_size, pinfo)
- bfd *abfd;
- asection *section;
- asymbol **symbols;
- bfd_vma offset;
- const char **filename_ptr;
- const char **functionname_ptr;
- unsigned int *linenumber_ptr;
- unsigned int addr_size;
- PTR *pinfo;
+_bfd_dwarf2_find_nearest_line (bfd *abfd,
+ asection *section,
+ asymbol **symbols,
+ bfd_vma offset,
+ const char **filename_ptr,
+ const char **functionname_ptr,
+ unsigned int *linenumber_ptr,
+ unsigned int addr_size,
+ void **pinfo)
{
/* Read each compilation unit from the section .debug_info, and check
to see if it contains the address we are searching for. If yes,
We keep a list of all the previously read compilation units, and
a pointer to the next un-read compilation unit. Check the
previously read units before reading more. */
- struct dwarf2_debug *stash = (struct dwarf2_debug *) *pinfo;
+ struct dwarf2_debug *stash = *pinfo;
/* What address are we looking for? */
bfd_vma addr = offset + section->vma;
asection *msec;
bfd_size_type amt = sizeof (struct dwarf2_debug);
- stash = (struct dwarf2_debug*) bfd_zalloc (abfd, amt);
+ stash = bfd_zalloc (abfd, amt);
if (! stash)
return FALSE;
- *pinfo = (PTR) stash;
+ *pinfo = stash;
msec = find_debug_info (abfd, NULL);
if (! msec)
for (total_size = 0; msec; msec = find_debug_info (abfd, msec))
total_size += msec->_raw_size;
- stash->info_ptr = (char *) bfd_alloc (abfd, total_size);
+ stash->info_ptr = bfd_alloc (abfd, total_size);
if (stash->info_ptr == NULL)
return FALSE;
projects / binutils-gdb.git / commitdiff