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* dwarf1.c (struct dwarf1_debug): Add syms member. 

(alloc_dwarf1_unit, alloc_dwarf1_func): Check for out of memory.
	(parse_line_table, _bfd_dwarf1_find_nearest_line): Relocate
	section contents, check for out of memory.

	* dwarf1.c (struct dwarf1_debug): Change data pointers to bfd_byte.
	(parse_die): Change data pointers to bfd_byte.
	(parse_line_table, parse_functions_in_unit): Likewise.
This commit is contained in:
Nathan Sidwell 2008-02-14 13:02:38 +00:00
parent 680c43e911
commit ab1579fdaf
2 changed files with 54 additions and 37 deletions
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11
bfd/ChangeLog
View File

@ -1,3 +1,14 @@
2008-02-14 Nathan Sidwell <nathan@codesourcery.com>
* dwarf1.c (struct dwarf1_debug): Add syms member.
(alloc_dwarf1_unit, alloc_dwarf1_func): Check for out of memory.
(parse_line_table, _bfd_dwarf1_find_nearest_line): Relocate
section contents, check for out of memory.
* dwarf1.c (struct dwarf1_debug): Change data pointers to bfd_byte.
(parse_die): Change data pointers to bfd_byte.
(parse_line_table, parse_functions_in_unit): Likewise.
2008-02-14 Alan Modra <amodra@bigpond.net.au>
* elflink.c (compute_bucket_count): Warning fixes.

80
bfd/dwarf1.c
View File

@ -35,24 +35,27 @@ struct dwarf1_debug
/* The bfd we are working with. */
bfd* abfd;
/* Pointer to the symbol table. */
asymbol** syms;
/* List of already parsed compilation units. */
struct dwarf1_unit* lastUnit;
/* The buffer for the .debug section.
Zero indicates that the .debug section failed to load. */
char* debug_section;
bfd_byte *debug_section;
/* Pointer to the end of the .debug_info section memory buffer. */
char* debug_section_end;
bfd_byte *debug_section_end;
/* The buffer for the .line section. */
char* line_section;
bfd_byte *line_section;
/* End of that buffer. */
char* line_section_end;
bfd_byte *line_section_end;
/* The current or next unread die within the .debug section. */
char* currentDie;
bfd_byte *currentDie;
};
/* One dwarf1_unit for each parsed compilation unit die. */
@ -63,7 +66,7 @@ struct dwarf1_unit
struct dwarf1_unit* prev;
/* Name of the compilation unit. */
char* name;
char *name;
/* The highest and lowest address used in the compilation unit. */
unsigned long low_pc;
@ -76,7 +79,7 @@ struct dwarf1_unit
unsigned long stmt_list_offset;
/* If non-zero, a pointer to the first child of this unit. */
char* first_child;
bfd_byte *first_child;
/* How many line entries? */
unsigned long line_count;
@ -141,8 +144,11 @@ alloc_dwarf1_unit (struct dwarf1_debug* stash)
bfd_size_type amt = sizeof (struct dwarf1_unit);
struct dwarf1_unit* x = bfd_zalloc (stash->abfd, amt);
x->prev = stash->lastUnit;
stash->lastUnit = x;
if (x)
{
x->prev = stash->lastUnit;
stash->lastUnit = x;
}
return x;
}
@ -156,8 +162,11 @@ alloc_dwarf1_func (struct dwarf1_debug* stash, struct dwarf1_unit* aUnit)
bfd_size_type amt = sizeof (struct dwarf1_func);
struct dwarf1_func* x = bfd_zalloc (stash->abfd, amt);
x->prev = aUnit->func_list;
aUnit->func_list = x;
if (x)
{
x->prev = aUnit->func_list;
aUnit->func_list = x;
}
return x;
}
@ -172,11 +181,11 @@ alloc_dwarf1_func (struct dwarf1_debug* stash, struct dwarf1_unit* aUnit)
static bfd_boolean
parse_die (bfd * abfd,
struct die_info * aDieInfo,
char * aDiePtr,
char * aDiePtrEnd)
bfd_byte * aDiePtr,
bfd_byte * aDiePtrEnd)
{
char* this_die = aDiePtr;
char* xptr = this_die;
bfd_byte *this_die = aDiePtr;
bfd_byte *xptr = this_die;
memset (aDieInfo, 0, sizeof (* aDieInfo));
@ -242,8 +251,8 @@ parse_die (bfd * abfd,
break;
case FORM_STRING:
if (attr == AT_name)
aDieInfo->name = xptr;
xptr += strlen (xptr) + 1;
aDieInfo->name = (char *)xptr;
xptr += strlen (aDieInfo->name) + 1;
break;
}
}
@ -258,7 +267,7 @@ parse_die (bfd * abfd,
static bfd_boolean
parse_line_table (struct dwarf1_debug* stash, struct dwarf1_unit* aUnit)
{
char* xptr;
bfd_byte *xptr;
/* Load the ".line" section from the bfd if we haven't already. */
if (stash->line_section == 0)
@ -271,18 +280,13 @@ parse_line_table (struct dwarf1_debug* stash, struct dwarf1_unit* aUnit)
return FALSE;
size = msec->rawsize ? msec->rawsize : msec->size;
stash->line_section = bfd_alloc (stash->abfd, size);
stash->line_section
= bfd_simple_get_relocated_section_contents
(stash->abfd, msec, NULL, stash->syms);
if (! stash->line_section)
return FALSE;
if (! bfd_get_section_contents (stash->abfd, msec, stash->line_section,
0, size))
{
stash->line_section = 0;
return FALSE;
}
stash->line_section_end = stash->line_section + size;
}
@ -290,7 +294,7 @@ parse_line_table (struct dwarf1_debug* stash, struct dwarf1_unit* aUnit)
if (xptr < stash->line_section_end)
{
unsigned long eachLine;
char *tblend;
bfd_byte *tblend;
unsigned long base;
bfd_size_type amt;
@ -309,6 +313,8 @@ parse_line_table (struct dwarf1_debug* stash, struct dwarf1_unit* aUnit)
/* Allocate an array for the entries. */
amt = sizeof (struct linenumber) * aUnit->line_count;
aUnit->linenumber_table = bfd_alloc (stash->abfd, amt);
if (!aUnit->linenumber_table)
return FALSE;
for (eachLine = 0; eachLine < aUnit->line_count; eachLine++)
{
@ -338,7 +344,7 @@ parse_line_table (struct dwarf1_debug* stash, struct dwarf1_unit* aUnit)
static bfd_boolean
parse_functions_in_unit (struct dwarf1_debug* stash, struct dwarf1_unit* aUnit)
{
char* eachDie;
bfd_byte *eachDie;
if (aUnit->first_child)
for (eachDie = aUnit->first_child;
@ -357,6 +363,8 @@ parse_functions_in_unit (struct dwarf1_debug* stash, struct dwarf1_unit* aUnit)
|| eachDieInfo.tag == TAG_entry_point)
{
struct dwarf1_func* aFunc = alloc_dwarf1_func (stash,aUnit);
if (!aFunc)
return FALSE;
aFunc->name = eachDieInfo.name;
aFunc->low_pc = eachDieInfo.low_pc;
@ -442,7 +450,7 @@ dwarf1_unit_find_nearest_line (struct dwarf1_debug* stash,
bfd_boolean
_bfd_dwarf1_find_nearest_line (bfd *abfd,
asection *section,
asymbol **symbols ATTRIBUTE_UNUSED,
asymbol **symbols,
bfd_vma offset,
const char **filename_ptr,
const char **functionname_ptr,
@ -478,21 +486,17 @@ _bfd_dwarf1_find_nearest_line (bfd *abfd,
return FALSE;
size = msec->rawsize ? msec->rawsize : msec->size;
stash->debug_section = bfd_alloc (abfd, size);
stash->debug_section
= bfd_simple_get_relocated_section_contents (abfd, msec, NULL,
symbols);
if (! stash->debug_section)
return FALSE;
if (! bfd_get_section_contents (abfd, msec, stash->debug_section,
0, size))
{
stash->debug_section = 0;
return FALSE;
}
stash->debug_section_end = stash->debug_section + size;
stash->currentDie = stash->debug_section;
stash->abfd = abfd;
stash->syms = symbols;
}
/* A null debug_section indicates that there was no dwarf1 info
@ -522,6 +526,8 @@ _bfd_dwarf1_find_nearest_line (bfd *abfd,
{
struct dwarf1_unit* aUnit
= alloc_dwarf1_unit (stash);
if (!aUnit)
return FALSE;
aUnit->name = aDieInfo.name;
aUnit->low_pc = aDieInfo.low_pc;