mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-11-27 03:51:15 +08:00
2000-11-16 Kazu Hirata <kazu@hxi.com>
* dwarf1.c: Fix formatting. * dwarf2.c: Likewise.
This commit is contained in:
parent
6f62085610
commit
98591c73cf
@ -1,3 +1,8 @@
|
||||
2000-11-16 Kazu Hirata <kazu@hxi.com>
|
||||
|
||||
* dwarf1.c: Fix formatting.
|
||||
* dwarf2.c: Likewise.
|
||||
|
||||
2000-11-15 Kazu Hirata <kazu@hxi.com>
|
||||
|
||||
* coff-arm.c: Fix formatting.
|
||||
|
206
bfd/dwarf1.c
206
bfd/dwarf1.c
@ -1,7 +1,7 @@
|
||||
/* DWARF 1 find nearest line (_bfd_dwarf1_find_nearest_line).
|
||||
Copyright 1998, 1999, 2000 Free Software Foundation, Inc.
|
||||
|
||||
Written by Gavin Romig-Koch of Cygnus Solutions (gavin@cygnus.com).
|
||||
Written by Gavin Romig-Koch of Cygnus Solutions (gavin@cygnus.com).
|
||||
|
||||
This file is part of BFD.
|
||||
|
||||
@ -26,121 +26,115 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
|
||||
#include "elf-bfd.h"
|
||||
#include "elf/dwarf.h"
|
||||
|
||||
/* dwarf1_debug is the starting point for all dwarf1 info. */
|
||||
/* dwarf1_debug is the starting point for all dwarf1 info. */
|
||||
|
||||
struct dwarf1_debug {
|
||||
|
||||
/* The bfd we are working with. */
|
||||
/* The bfd we are working with. */
|
||||
bfd* abfd;
|
||||
|
||||
/* List of already parsed compilation units. */
|
||||
/* 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. */
|
||||
/* The buffer for the .debug section.
|
||||
Zero indicates that the .debug section failed to load. */
|
||||
char* debug_section;
|
||||
|
||||
/* Pointer to the end of the .debug_info section memory buffer. */
|
||||
/* Pointer to the end of the .debug_info section memory buffer. */
|
||||
char* debug_section_end;
|
||||
|
||||
/* The buffer for the .line section. */
|
||||
/* The buffer for the .line section. */
|
||||
char* line_section;
|
||||
|
||||
/* End of that buffer. */
|
||||
/* End of that buffer. */
|
||||
char* line_section_end;
|
||||
|
||||
/* The current or next unread die within the .debug section. */
|
||||
/* The current or next unread die within the .debug section. */
|
||||
char* currentDie;
|
||||
};
|
||||
|
||||
/* One dwarf1_unit for each parsed compilation unit die. */
|
||||
/* One dwarf1_unit for each parsed compilation unit die. */
|
||||
|
||||
struct dwarf1_unit {
|
||||
/* Linked starting from stash->lastUnit. */
|
||||
/* Linked starting from stash->lastUnit. */
|
||||
struct dwarf1_unit* prev;
|
||||
|
||||
/* Name of the compilation unit. */
|
||||
/* Name of the compilation unit. */
|
||||
char* name;
|
||||
|
||||
/* The highest and lowest address used in the compilation unit. */
|
||||
/* The highest and lowest address used in the compilation unit. */
|
||||
unsigned long low_pc;
|
||||
unsigned long high_pc;
|
||||
|
||||
/* Does this unit have a statement list? */
|
||||
int has_stmt_list;
|
||||
|
||||
/* If any, the offset of the line number table in the .line section. */
|
||||
/* If any, the offset of the line number table in the .line section. */
|
||||
unsigned long stmt_list_offset;
|
||||
|
||||
/* If non-zero, a pointer to the first child of this unit. */
|
||||
/* If non-zero, a pointer to the first child of this unit. */
|
||||
char* first_child;
|
||||
|
||||
/* How many line entries? */
|
||||
unsigned long line_count;
|
||||
|
||||
/* The decoded line number table (line_count entries). */
|
||||
/* The decoded line number table (line_count entries). */
|
||||
struct linenumber* linenumber_table;
|
||||
|
||||
/* The list of functions in this unit. */
|
||||
/* The list of functions in this unit. */
|
||||
struct dwarf1_func* func_list;
|
||||
};
|
||||
|
||||
|
||||
|
||||
/* One dwarf1_func for each parsed function die. */
|
||||
|
||||
struct dwarf1_func {
|
||||
/* Linked starting from aUnit->func_list. */
|
||||
/* Linked starting from aUnit->func_list. */
|
||||
struct dwarf1_func* prev;
|
||||
|
||||
/* Name of function. */
|
||||
|
||||
/* Name of function. */
|
||||
char* name;
|
||||
|
||||
/* The highest and lowest address used in the compilation unit. */
|
||||
|
||||
/* The highest and lowest address used in the compilation unit. */
|
||||
unsigned long low_pc;
|
||||
unsigned long high_pc;
|
||||
};
|
||||
|
||||
|
||||
/* Used to return info about a parsed die. */
|
||||
/* Used to return info about a parsed die. */
|
||||
struct die_info {
|
||||
unsigned long length;
|
||||
unsigned long sibling;
|
||||
unsigned long low_pc;
|
||||
unsigned long high_pc;
|
||||
unsigned long stmt_list_offset;
|
||||
|
||||
char* name;
|
||||
|
||||
|
||||
char* name;
|
||||
|
||||
int has_stmt_list;
|
||||
|
||||
unsigned short tag;
|
||||
};
|
||||
|
||||
|
||||
/* Parsed line number information. */
|
||||
/* Parsed line number information. */
|
||||
struct linenumber {
|
||||
/* First address in the line. */
|
||||
/* First address in the line. */
|
||||
unsigned long addr;
|
||||
|
||||
/* The line number. */
|
||||
/* The line number. */
|
||||
unsigned long linenumber;
|
||||
};
|
||||
|
||||
|
||||
/* Find the form of an attr, from the attr field. */
|
||||
/* Find the form of an attr, from the attr field. */
|
||||
#define FORM_FROM_ATTR(attr) ((attr) & 0xF) /* Implicitly specified */
|
||||
|
||||
|
||||
/* Return a newly allocated dwarf1_unit. It should be cleared and
|
||||
then attached into the 'stash' at 'stash->lastUnit'. */
|
||||
then attached into the 'stash' at 'stash->lastUnit'. */
|
||||
|
||||
static struct dwarf1_unit*
|
||||
alloc_dwarf1_unit (stash)
|
||||
struct dwarf1_debug* stash;
|
||||
{
|
||||
struct dwarf1_unit* x =
|
||||
(struct dwarf1_unit*) bfd_zalloc (stash->abfd,
|
||||
struct dwarf1_unit* x =
|
||||
(struct dwarf1_unit*) bfd_zalloc (stash->abfd,
|
||||
sizeof (struct dwarf1_unit));
|
||||
x->prev = stash->lastUnit;
|
||||
stash->lastUnit = x;
|
||||
@ -149,28 +143,28 @@ alloc_dwarf1_unit (stash)
|
||||
}
|
||||
|
||||
/* Return a newly allocated dwarf1_func. It must be cleared and
|
||||
attached into 'aUnit' at 'aUnit->func_list'. */
|
||||
attached into 'aUnit' at 'aUnit->func_list'. */
|
||||
|
||||
static struct dwarf1_func*
|
||||
alloc_dwarf1_func (stash, aUnit)
|
||||
struct dwarf1_debug* stash;
|
||||
struct dwarf1_unit* aUnit;
|
||||
{
|
||||
struct dwarf1_func* x =
|
||||
(struct dwarf1_func*) bfd_zalloc (stash->abfd,
|
||||
struct dwarf1_func* x =
|
||||
(struct dwarf1_func*) bfd_zalloc (stash->abfd,
|
||||
sizeof (struct dwarf1_func));
|
||||
x->prev = aUnit->func_list;
|
||||
aUnit->func_list = x;
|
||||
|
||||
|
||||
return x;
|
||||
}
|
||||
|
||||
/* parse_die - parse a Dwarf1 die.
|
||||
Parse the die starting at 'aDiePtr' into 'aDieInfo'.
|
||||
'abfd' must be the bfd from which the section that 'aDiePtr'
|
||||
points to was pulled from.
|
||||
points to was pulled from.
|
||||
|
||||
Return false if the die is invalidly formatted; true otherwise. */
|
||||
Return false if the die is invalidly formatted; true otherwise. */
|
||||
|
||||
static boolean
|
||||
parse_die (abfd, aDieInfo, aDiePtr)
|
||||
@ -181,36 +175,36 @@ parse_die (abfd, aDieInfo, aDiePtr)
|
||||
char* this_die = aDiePtr;
|
||||
char* xptr = this_die;
|
||||
|
||||
memset (aDieInfo,0,sizeof(*aDieInfo));
|
||||
memset (aDieInfo,0,sizeof (*aDieInfo));
|
||||
|
||||
/* First comes the length. */
|
||||
/* First comes the length. */
|
||||
aDieInfo->length = bfd_get_32 (abfd, (bfd_byte *) xptr);
|
||||
xptr += 4;
|
||||
if (aDieInfo->length == 0)
|
||||
return false;
|
||||
if (aDieInfo->length < 6)
|
||||
{
|
||||
/* Just padding bytes. */
|
||||
/* Just padding bytes. */
|
||||
aDieInfo->tag = TAG_padding;
|
||||
return true;
|
||||
}
|
||||
|
||||
/* Then the tag. */
|
||||
/* Then the tag. */
|
||||
aDieInfo->tag = bfd_get_16 (abfd, (bfd_byte *) xptr);
|
||||
xptr += 2;
|
||||
|
||||
/* Then the attributes. */
|
||||
|
||||
/* Then the attributes. */
|
||||
while (xptr < (this_die + aDieInfo->length))
|
||||
{
|
||||
unsigned short attr;
|
||||
|
||||
/* Parse the attribute based on its form. This section
|
||||
|
||||
/* Parse the attribute based on its form. This section
|
||||
must handle all dwarf1 forms, but need only handle the
|
||||
actual attributes that we care about. */
|
||||
actual attributes that we care about. */
|
||||
|
||||
attr = bfd_get_16 (abfd, (bfd_byte *) xptr);
|
||||
xptr += 2;
|
||||
|
||||
|
||||
switch (FORM_FROM_ATTR (attr))
|
||||
{
|
||||
case FORM_DATA2:
|
||||
@ -255,9 +249,9 @@ parse_die (abfd, aDieInfo, aDiePtr)
|
||||
}
|
||||
|
||||
/* Parse a dwarf1 line number table for 'aUnit->stmt_list_offset'
|
||||
into 'aUnit->linenumber_table'. Return false if an error
|
||||
occurs; true otherwise. */
|
||||
|
||||
into 'aUnit->linenumber_table'. Return false if an error
|
||||
occurs; true otherwise. */
|
||||
|
||||
static boolean
|
||||
parse_line_table (stash, aUnit)
|
||||
struct dwarf1_debug* stash;
|
||||
@ -265,19 +259,19 @@ parse_line_table (stash, aUnit)
|
||||
{
|
||||
char* xptr;
|
||||
|
||||
/* Load the ".line" section from the bfd if we haven't already. */
|
||||
/* Load the ".line" section from the bfd if we haven't already. */
|
||||
if (stash->line_section == 0)
|
||||
{
|
||||
asection *msec;
|
||||
unsigned long size;
|
||||
|
||||
|
||||
msec = bfd_get_section_by_name (stash->abfd, ".line");
|
||||
if (! msec)
|
||||
return false;
|
||||
|
||||
|
||||
size = bfd_get_section_size_before_reloc (msec);
|
||||
stash->line_section = (char *) bfd_alloc (stash->abfd, size);
|
||||
|
||||
|
||||
if (! stash->line_section)
|
||||
return false;
|
||||
|
||||
@ -298,11 +292,11 @@ parse_line_table (stash, aUnit)
|
||||
char* tblend;
|
||||
unsigned long base;
|
||||
|
||||
/* First comes the length. */
|
||||
/* First comes the length. */
|
||||
tblend = bfd_get_32 (stash->abfd, (bfd_byte *) xptr) + xptr;
|
||||
xptr += 4;
|
||||
|
||||
/* Then the base address for each address in the table. */
|
||||
/* Then the base address for each address in the table. */
|
||||
base = bfd_get_32 (stash->abfd, (bfd_byte *) xptr);
|
||||
xptr += 4;
|
||||
|
||||
@ -310,23 +304,23 @@ parse_line_table (stash, aUnit)
|
||||
10 = 4 (line number) + 2 (pos in line) + 4 (address in line) */
|
||||
aUnit->line_count = (tblend - xptr) / 10;
|
||||
|
||||
/* Allocate an array for the entries. */
|
||||
/* Allocate an array for the entries. */
|
||||
aUnit->linenumber_table = (struct linenumber *)
|
||||
bfd_alloc (stash->abfd,
|
||||
bfd_alloc (stash->abfd,
|
||||
sizeof (struct linenumber) * aUnit->line_count);
|
||||
|
||||
|
||||
for (eachLine = 0; eachLine < aUnit->line_count; eachLine++)
|
||||
{
|
||||
/* A line number. */
|
||||
/* A line number. */
|
||||
aUnit->linenumber_table[eachLine].linenumber
|
||||
= bfd_get_32 (stash->abfd, (bfd_byte *) xptr);
|
||||
xptr += 4;
|
||||
|
||||
/* Skip the position within the line. */
|
||||
/* Skip the position within the line. */
|
||||
xptr += 2;
|
||||
|
||||
/* And finally the address. */
|
||||
aUnit->linenumber_table[eachLine].addr
|
||||
/* And finally the address. */
|
||||
aUnit->linenumber_table[eachLine].addr
|
||||
= base + bfd_get_32 (stash->abfd, (bfd_byte *) xptr);
|
||||
xptr += 4;
|
||||
}
|
||||
@ -338,7 +332,7 @@ parse_line_table (stash, aUnit)
|
||||
/* Parse each function die in a compilation unit 'aUnit'.
|
||||
The first child die of 'aUnit' should be in 'aUnit->first_child',
|
||||
the result is placed in 'aUnit->func_list'.
|
||||
Return false if error; true otherwise. */
|
||||
Return false if error; true otherwise. */
|
||||
|
||||
static boolean
|
||||
parse_functions_in_unit (stash, aUnit)
|
||||
@ -353,37 +347,37 @@ parse_functions_in_unit (stash, aUnit)
|
||||
)
|
||||
{
|
||||
struct die_info eachDieInfo;
|
||||
|
||||
|
||||
if (! parse_die (stash->abfd, &eachDieInfo, eachDie))
|
||||
return false;
|
||||
|
||||
|
||||
if (eachDieInfo.tag == TAG_global_subroutine
|
||||
|| eachDieInfo.tag == TAG_subroutine
|
||||
|| eachDieInfo.tag == TAG_inlined_subroutine
|
||||
|| eachDieInfo.tag == TAG_entry_point)
|
||||
{
|
||||
struct dwarf1_func* aFunc = alloc_dwarf1_func (stash,aUnit);
|
||||
|
||||
|
||||
aFunc->name = eachDieInfo.name;
|
||||
aFunc->low_pc = eachDieInfo.low_pc;
|
||||
aFunc->high_pc = eachDieInfo.high_pc;
|
||||
}
|
||||
|
||||
|
||||
/* Move to next sibling, if none, end loop */
|
||||
if (eachDieInfo.sibling)
|
||||
eachDie = stash->debug_section + eachDieInfo.sibling;
|
||||
else
|
||||
break;
|
||||
}
|
||||
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
/* Find the nearest line to 'addr' in 'aUnit'.
|
||||
Return whether we found the line (or a function) without error. */
|
||||
Return whether we found the line (or a function) without error. */
|
||||
|
||||
static boolean
|
||||
dwarf1_unit_find_nearest_line (stash, aUnit, addr,
|
||||
dwarf1_unit_find_nearest_line (stash, aUnit, addr,
|
||||
filename_ptr, functionname_ptr,
|
||||
linenumber_ptr)
|
||||
struct dwarf1_debug* stash;
|
||||
@ -427,8 +421,8 @@ dwarf1_unit_find_nearest_line (stash, aUnit, addr,
|
||||
}
|
||||
}
|
||||
|
||||
for (eachFunc = aUnit->func_list;
|
||||
eachFunc;
|
||||
for (eachFunc = aUnit->func_list;
|
||||
eachFunc;
|
||||
eachFunc = eachFunc->prev)
|
||||
{
|
||||
if (eachFunc->low_pc <= addr
|
||||
@ -445,11 +439,8 @@ dwarf1_unit_find_nearest_line (stash, aUnit, addr,
|
||||
return line_p || func_p;
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
/* The DWARF 1 version of find_nearest line.
|
||||
Return true if the line is found without error. */
|
||||
Return true if the line is found without error. */
|
||||
|
||||
boolean
|
||||
_bfd_dwarf1_find_nearest_line (abfd, section, symbols, offset,
|
||||
@ -472,31 +463,30 @@ _bfd_dwarf1_find_nearest_line (abfd, section, symbols, offset,
|
||||
*filename_ptr = NULL;
|
||||
*functionname_ptr = NULL;
|
||||
*linenumber_ptr = 0;
|
||||
|
||||
|
||||
if (! stash)
|
||||
{
|
||||
asection *msec;
|
||||
unsigned long size;
|
||||
|
||||
|
||||
stash = elf_tdata (abfd)->dwarf1_find_line_info =
|
||||
(struct dwarf1_debug*) bfd_zalloc (abfd, sizeof (struct dwarf1_debug));
|
||||
|
||||
|
||||
if (! stash)
|
||||
return false;
|
||||
|
||||
|
||||
msec = bfd_get_section_by_name (abfd, ".debug");
|
||||
if (! msec)
|
||||
{
|
||||
/* No dwarf1 info. Note that at this point the stash
|
||||
has been allocated, but contains zeros, this lets
|
||||
future calls to this function fail quicker. */
|
||||
future calls to this function fail quicker. */
|
||||
return false;
|
||||
}
|
||||
|
||||
size = bfd_get_section_size_before_reloc (msec);
|
||||
stash->debug_section = (char *) bfd_alloc (abfd, size);
|
||||
|
||||
|
||||
if (! stash->debug_section)
|
||||
return false;
|
||||
|
||||
@ -512,20 +502,19 @@ _bfd_dwarf1_find_nearest_line (abfd, section, symbols, offset,
|
||||
}
|
||||
|
||||
/* A null debug_section indicates that there was no dwarf1 info
|
||||
or that an error occured while setting up the stash. */
|
||||
or that an error occured while setting up the stash. */
|
||||
|
||||
if (! stash->debug_section)
|
||||
return false;
|
||||
|
||||
|
||||
/* Look at the previously parsed units to see if any contain
|
||||
the addr. */
|
||||
the addr. */
|
||||
for (eachUnit = stash->lastUnit; eachUnit; eachUnit = eachUnit->prev)
|
||||
{
|
||||
if (eachUnit->low_pc <= addr && addr < eachUnit->high_pc)
|
||||
return dwarf1_unit_find_nearest_line (stash, eachUnit, addr,
|
||||
filename_ptr,
|
||||
functionname_ptr,
|
||||
filename_ptr,
|
||||
functionname_ptr,
|
||||
linenumber_ptr);
|
||||
}
|
||||
|
||||
@ -535,36 +524,36 @@ _bfd_dwarf1_find_nearest_line (abfd, section, symbols, offset,
|
||||
|
||||
if (! parse_die (stash->abfd, &aDieInfo, stash->currentDie))
|
||||
return false;
|
||||
|
||||
|
||||
if (aDieInfo.tag == TAG_compile_unit)
|
||||
{
|
||||
struct dwarf1_unit* aUnit
|
||||
= alloc_dwarf1_unit (stash);
|
||||
|
||||
|
||||
aUnit->name = aDieInfo.name;
|
||||
aUnit->low_pc = aDieInfo.low_pc;
|
||||
aUnit->high_pc = aDieInfo.high_pc;
|
||||
aUnit->has_stmt_list = aDieInfo.has_stmt_list;
|
||||
aUnit->stmt_list_offset = aDieInfo.stmt_list_offset;
|
||||
|
||||
|
||||
/* A die has a child if it's followed by a die that is
|
||||
not it's sibling. */
|
||||
if (aDieInfo.sibling
|
||||
&& stash->currentDie + aDieInfo.length
|
||||
not it's sibling. */
|
||||
if (aDieInfo.sibling
|
||||
&& stash->currentDie + aDieInfo.length
|
||||
< stash->debug_section_end
|
||||
&& stash->currentDie + aDieInfo.length
|
||||
&& stash->currentDie + aDieInfo.length
|
||||
!= stash->debug_section + aDieInfo.sibling)
|
||||
aUnit->first_child = stash->currentDie + aDieInfo.length;
|
||||
else
|
||||
aUnit->first_child = 0;
|
||||
|
||||
if (aUnit->low_pc <= addr && addr < aUnit->high_pc)
|
||||
return dwarf1_unit_find_nearest_line (stash, aUnit, addr,
|
||||
filename_ptr,
|
||||
functionname_ptr,
|
||||
return dwarf1_unit_find_nearest_line (stash, aUnit, addr,
|
||||
filename_ptr,
|
||||
functionname_ptr,
|
||||
linenumber_ptr);
|
||||
}
|
||||
|
||||
|
||||
if (aDieInfo.sibling != 0)
|
||||
stash->currentDie = stash->debug_section + aDieInfo.sibling;
|
||||
else
|
||||
@ -574,5 +563,4 @@ _bfd_dwarf1_find_nearest_line (abfd, section, symbols, offset,
|
||||
return false;
|
||||
}
|
||||
|
||||
|
||||
/* EOF */
|
||||
|
140
bfd/dwarf2.c
140
bfd/dwarf2.c
@ -75,7 +75,7 @@ struct attribute
|
||||
#define DW_SND(attr) ((attr)->u.snd)
|
||||
#define DW_ADDR(attr) ((attr)->u.addr)
|
||||
|
||||
/* Blocks are a bunch of untyped bytes. */
|
||||
/* Blocks are a bunch of untyped bytes. */
|
||||
struct dwarf_block
|
||||
{
|
||||
unsigned int size;
|
||||
@ -144,7 +144,7 @@ struct comp_unit
|
||||
|
||||
/* True if there is a line number table associated with this comp. unit. */
|
||||
int stmtlist;
|
||||
|
||||
|
||||
/* The offset into .debug_line of the line number table. */
|
||||
unsigned long line_offset;
|
||||
|
||||
@ -158,14 +158,14 @@ struct comp_unit
|
||||
struct line_info_table* line_table;
|
||||
|
||||
/* A list of the functions found in this comp. unit. */
|
||||
struct funcinfo* function_table;
|
||||
struct funcinfo* function_table;
|
||||
|
||||
/* Address size for this unit - from unit header. */
|
||||
unsigned char addr_size;
|
||||
};
|
||||
|
||||
/* VERBATIM
|
||||
The following function up to the END VERBATIM mark are
|
||||
/* VERBATIM
|
||||
The following function up to the END VERBATIM mark are
|
||||
copied directly from dwarf2read.c. */
|
||||
|
||||
/* Read dwarf information from a buffer. */
|
||||
@ -260,7 +260,7 @@ read_string (abfd, buf, bytes_read_ptr)
|
||||
*bytes_read_ptr = 1;
|
||||
return NULL;
|
||||
}
|
||||
|
||||
|
||||
*bytes_read_ptr = strlen (buf) + 1;
|
||||
return buf;
|
||||
}
|
||||
@ -279,7 +279,7 @@ read_unsigned_leb128 (abfd, buf, bytes_read_ptr)
|
||||
result = 0;
|
||||
shift = 0;
|
||||
num_read = 0;
|
||||
|
||||
|
||||
do
|
||||
{
|
||||
byte = bfd_get_8 (abfd, (bfd_byte *) buf);
|
||||
@ -289,9 +289,9 @@ read_unsigned_leb128 (abfd, buf, bytes_read_ptr)
|
||||
shift += 7;
|
||||
}
|
||||
while (byte & 0x80);
|
||||
|
||||
|
||||
* bytes_read_ptr = num_read;
|
||||
|
||||
|
||||
return result;
|
||||
}
|
||||
|
||||
@ -319,12 +319,12 @@ read_signed_leb128 (abfd, buf, bytes_read_ptr)
|
||||
shift += 7;
|
||||
}
|
||||
while (byte & 0x80);
|
||||
|
||||
|
||||
if ((shift < 32) && (byte & 0x40))
|
||||
result |= -(1 << shift);
|
||||
|
||||
* bytes_read_ptr = num_read;
|
||||
|
||||
|
||||
return result;
|
||||
}
|
||||
|
||||
@ -348,7 +348,7 @@ read_address (unit, buf)
|
||||
}
|
||||
}
|
||||
|
||||
/* This data structure holds the information of an abbrev. */
|
||||
/* This data structure holds the information of an abbrev. */
|
||||
struct abbrev_info
|
||||
{
|
||||
unsigned int number; /* Number identifying abbrev. */
|
||||
@ -392,7 +392,7 @@ lookup_abbrev (number,abbrevs)
|
||||
else
|
||||
abbrev = abbrev->next;
|
||||
}
|
||||
|
||||
|
||||
return NULL;
|
||||
}
|
||||
|
||||
@ -426,13 +426,13 @@ read_abbrevs (abfd, offset)
|
||||
bfd_set_error (bfd_error_bad_value);
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
stash->dwarf_abbrev_size = msec->_raw_size;
|
||||
stash->dwarf_abbrev_buffer = (char*) bfd_alloc (abfd, stash->dwarf_abbrev_size);
|
||||
if (! stash->dwarf_abbrev_buffer)
|
||||
return 0;
|
||||
|
||||
if (! bfd_get_section_contents (abfd, msec,
|
||||
|
||||
if (! bfd_get_section_contents (abfd, msec,
|
||||
stash->dwarf_abbrev_buffer, 0,
|
||||
stash->dwarf_abbrev_size))
|
||||
return 0;
|
||||
@ -440,13 +440,13 @@ read_abbrevs (abfd, offset)
|
||||
|
||||
if (offset > stash->dwarf_abbrev_size)
|
||||
{
|
||||
(*_bfd_error_handler) (_("Dwarf Error: Abbrev offset (%u) bigger than abbrev size (%u)."),
|
||||
(*_bfd_error_handler) (_("Dwarf Error: Abbrev offset (%u) bigger than abbrev size (%u)."),
|
||||
offset, stash->dwarf_abbrev_size );
|
||||
bfd_set_error (bfd_error_bad_value);
|
||||
return 0;
|
||||
}
|
||||
|
||||
abbrevs = (struct abbrev_info**) bfd_zalloc (abfd, sizeof(struct abbrev_info*) * ABBREV_HASH_SIZE);
|
||||
abbrevs = (struct abbrev_info**) bfd_zalloc (abfd, sizeof (struct abbrev_info*) * ABBREV_HASH_SIZE);
|
||||
|
||||
abbrev_ptr = stash->dwarf_abbrev_buffer + offset;
|
||||
abbrev_number = read_unsigned_leb128 (abfd, abbrev_ptr, &bytes_read);
|
||||
@ -469,7 +469,7 @@ read_abbrevs (abfd, offset)
|
||||
abbrev_ptr += bytes_read;
|
||||
abbrev_form = read_unsigned_leb128 (abfd, abbrev_ptr, &bytes_read);
|
||||
abbrev_ptr += bytes_read;
|
||||
|
||||
|
||||
while (abbrev_name)
|
||||
{
|
||||
if ((cur_abbrev->num_attrs % ATTR_ALLOC_CHUNK) == 0)
|
||||
@ -481,7 +481,7 @@ read_abbrevs (abfd, offset)
|
||||
if (! cur_abbrev->attrs)
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
cur_abbrev->attrs[cur_abbrev->num_attrs].name = abbrev_name;
|
||||
cur_abbrev->attrs[cur_abbrev->num_attrs++].form = abbrev_form;
|
||||
abbrev_name = read_unsigned_leb128 (abfd, abbrev_ptr, &bytes_read);
|
||||
@ -528,7 +528,7 @@ read_attribute (attr, abbrev, unit, info_ptr)
|
||||
|
||||
attr->name = abbrev->name;
|
||||
attr->form = abbrev->form;
|
||||
|
||||
|
||||
switch (abbrev->form)
|
||||
{
|
||||
case DW_FORM_addr:
|
||||
@ -664,7 +664,7 @@ struct line_info_table
|
||||
struct line_info* last_line;
|
||||
};
|
||||
|
||||
static void
|
||||
static void
|
||||
add_line_info (table, address, filename, line, column, end_sequence)
|
||||
struct line_info_table* table;
|
||||
bfd_vma address;
|
||||
@ -723,7 +723,7 @@ arange_add (unit, low_pc, high_pc)
|
||||
|
||||
/* First see if we can cheaply extend an existing range. */
|
||||
arange = &unit->arange;
|
||||
|
||||
|
||||
do
|
||||
{
|
||||
if (low_pc == arange->high)
|
||||
@ -787,13 +787,13 @@ decode_line_info (unit)
|
||||
bfd_set_error (bfd_error_bad_value);
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
stash->dwarf_line_size = msec->_raw_size;
|
||||
stash->dwarf_line_buffer = (char *) bfd_alloc (abfd, stash->dwarf_line_size);
|
||||
if (! stash->dwarf_line_buffer)
|
||||
return 0;
|
||||
|
||||
if (! bfd_get_section_contents (abfd, msec,
|
||||
if (! bfd_get_section_contents (abfd, msec,
|
||||
stash->dwarf_line_buffer, 0,
|
||||
stash->dwarf_line_size))
|
||||
return 0;
|
||||
@ -813,7 +813,7 @@ decode_line_info (unit)
|
||||
return 0;
|
||||
}
|
||||
|
||||
table = (struct line_info_table*) bfd_alloc (abfd,
|
||||
table = (struct line_info_table*) bfd_alloc (abfd,
|
||||
sizeof (struct line_info_table));
|
||||
table->abfd = abfd;
|
||||
table->comp_dir = unit->comp_dir;
|
||||
@ -851,7 +851,7 @@ decode_line_info (unit)
|
||||
bfd_alloc (abfd, lh.opcode_base * sizeof (unsigned char));
|
||||
|
||||
lh.standard_opcode_lengths[0] = 1;
|
||||
|
||||
|
||||
for (i = 1; i < lh.opcode_base; ++i)
|
||||
{
|
||||
lh.standard_opcode_lengths[i] = read_1_byte (abfd, line_ptr);
|
||||
@ -862,7 +862,7 @@ decode_line_info (unit)
|
||||
while ((cur_dir = read_string (abfd, line_ptr, &bytes_read)) != NULL)
|
||||
{
|
||||
line_ptr += bytes_read;
|
||||
|
||||
|
||||
if ((table->num_dirs % DIR_ALLOC_CHUNK) == 0)
|
||||
{
|
||||
table->dirs = (char **)
|
||||
@ -871,17 +871,17 @@ decode_line_info (unit)
|
||||
if (! table->dirs)
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
table->dirs[table->num_dirs++] = cur_dir;
|
||||
}
|
||||
|
||||
|
||||
line_ptr += bytes_read;
|
||||
|
||||
/* Read file name table. */
|
||||
while ((cur_file = read_string (abfd, line_ptr, &bytes_read)) != NULL)
|
||||
{
|
||||
line_ptr += bytes_read;
|
||||
|
||||
|
||||
if ((table->num_files % FILE_ALLOC_CHUNK) == 0)
|
||||
{
|
||||
table->files = (struct fileinfo *)
|
||||
@ -891,7 +891,7 @@ decode_line_info (unit)
|
||||
if (! table->files)
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
table->files[table->num_files].name = cur_file;
|
||||
table->files[table->num_files].dir =
|
||||
read_unsigned_leb128 (abfd, line_ptr, &bytes_read);
|
||||
@ -904,7 +904,7 @@ decode_line_info (unit)
|
||||
line_ptr += bytes_read;
|
||||
table->num_files++;
|
||||
}
|
||||
|
||||
|
||||
line_ptr += bytes_read;
|
||||
|
||||
/* Read the statement sequences until there's nothing left. */
|
||||
@ -925,7 +925,7 @@ decode_line_info (unit)
|
||||
{
|
||||
op_code = read_1_byte (abfd, line_ptr);
|
||||
line_ptr += 1;
|
||||
|
||||
|
||||
switch (op_code)
|
||||
{
|
||||
case DW_LNS_extended_op:
|
||||
@ -1051,9 +1051,9 @@ decode_line_info (unit)
|
||||
LINENUMBER_PTR, are pointers to the objects to be filled in. */
|
||||
|
||||
static boolean
|
||||
lookup_address_in_line_info_table (table,
|
||||
lookup_address_in_line_info_table (table,
|
||||
addr,
|
||||
filename_ptr,
|
||||
filename_ptr,
|
||||
linenumber_ptr)
|
||||
struct line_info_table* table;
|
||||
bfd_vma addr;
|
||||
@ -1062,7 +1062,7 @@ lookup_address_in_line_info_table (table,
|
||||
{
|
||||
struct line_info* next_line = table->last_line;
|
||||
struct line_info* each_line;
|
||||
|
||||
|
||||
if (!next_line)
|
||||
return false;
|
||||
|
||||
@ -1080,10 +1080,10 @@ lookup_address_in_line_info_table (table,
|
||||
next_line = each_line;
|
||||
each_line = each_line->prev_line;
|
||||
}
|
||||
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
|
||||
/* Function table functions. */
|
||||
|
||||
struct funcinfo
|
||||
@ -1094,10 +1094,10 @@ struct funcinfo
|
||||
bfd_vma high;
|
||||
};
|
||||
|
||||
/* If ADDR is within TABLE, set FUNCTIONNAME_PTR, and return true. */
|
||||
/* If ADDR is within TABLE, set FUNCTIONNAME_PTR, and return true. */
|
||||
|
||||
static boolean
|
||||
lookup_address_in_function_table (table,
|
||||
lookup_address_in_function_table (table,
|
||||
addr,
|
||||
functionname_ptr)
|
||||
struct funcinfo* table;
|
||||
@ -1116,7 +1116,7 @@ lookup_address_in_function_table (table,
|
||||
return true;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
@ -1149,16 +1149,16 @@ scan_unit_for_functions (unit)
|
||||
nesting_level--;
|
||||
continue;
|
||||
}
|
||||
|
||||
|
||||
abbrev = lookup_abbrev (abbrev_number,unit->abbrevs);
|
||||
if (! abbrev)
|
||||
{
|
||||
(*_bfd_error_handler) (_("Dwarf Error: Could not find abbrev number %d."),
|
||||
(*_bfd_error_handler) (_("Dwarf Error: Could not find abbrev number %d."),
|
||||
abbrev_number);
|
||||
bfd_set_error (bfd_error_bad_value);
|
||||
return false;
|
||||
}
|
||||
|
||||
|
||||
if (abbrev->tag == DW_TAG_subprogram)
|
||||
{
|
||||
func = (struct funcinfo*) bfd_zalloc (abfd, sizeof (struct funcinfo));
|
||||
@ -1167,24 +1167,24 @@ scan_unit_for_functions (unit)
|
||||
}
|
||||
else
|
||||
func = NULL;
|
||||
|
||||
|
||||
for (i = 0; i < abbrev->num_attrs; ++i)
|
||||
{
|
||||
info_ptr = read_attribute (&attr, &abbrev->attrs[i], unit, info_ptr);
|
||||
|
||||
|
||||
if (func)
|
||||
{
|
||||
switch (attr.name)
|
||||
{
|
||||
case DW_AT_name:
|
||||
|
||||
|
||||
name = DW_STRING (&attr);
|
||||
|
||||
/* Prefer DW_AT_MIPS_linkage_name over DW_AT_name. */
|
||||
if (func->name == NULL)
|
||||
func->name = DW_STRING (&attr);
|
||||
break;
|
||||
|
||||
|
||||
case DW_AT_MIPS_linkage_name:
|
||||
func->name = DW_STRING (&attr);
|
||||
break;
|
||||
@ -1208,7 +1208,7 @@ scan_unit_for_functions (unit)
|
||||
case DW_AT_name:
|
||||
name = DW_STRING (&attr);
|
||||
break;
|
||||
|
||||
|
||||
default:
|
||||
break;
|
||||
}
|
||||
@ -1309,10 +1309,10 @@ parse_comp_unit (abfd, info_ptr, end_ptr, abbrev_length)
|
||||
bfd_set_error (bfd_error_bad_value);
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
unit = (struct comp_unit*) bfd_zalloc (abfd, sizeof (struct comp_unit));
|
||||
unit->abfd = abfd;
|
||||
unit->addr_size = addr_size;
|
||||
unit->addr_size = addr_size;
|
||||
unit->abbrevs = abbrevs;
|
||||
unit->end_ptr = end_ptr;
|
||||
|
||||
@ -1386,14 +1386,14 @@ comp_unit_contains_address (unit, addr)
|
||||
arange = arange->next;
|
||||
}
|
||||
while (arange);
|
||||
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* If UNIT contains ADDR, set the output parameters to the values for
|
||||
the line containing ADDR. The output parameters, FILENAME_PTR,
|
||||
FUNCTIONNAME_PTR, and LINENUMBER_PTR, are pointers to the objects
|
||||
to be filled in.
|
||||
to be filled in.
|
||||
|
||||
Return true of UNIT contains ADDR, and no errors were encountered;
|
||||
false otherwise. */
|
||||
@ -1409,7 +1409,7 @@ comp_unit_find_nearest_line (unit, addr,
|
||||
{
|
||||
boolean line_p;
|
||||
boolean func_p;
|
||||
|
||||
|
||||
if (unit->error)
|
||||
return false;
|
||||
|
||||
@ -1420,7 +1420,7 @@ comp_unit_find_nearest_line (unit, addr,
|
||||
unit->error = 1;
|
||||
return false;
|
||||
}
|
||||
|
||||
|
||||
unit->line_table = decode_line_info (unit);
|
||||
|
||||
if (! unit->line_table)
|
||||
@ -1428,7 +1428,7 @@ comp_unit_find_nearest_line (unit, addr,
|
||||
unit->error = 1;
|
||||
return false;
|
||||
}
|
||||
|
||||
|
||||
if (! scan_unit_for_functions (unit))
|
||||
{
|
||||
unit->error = 1;
|
||||
@ -1438,9 +1438,9 @@ comp_unit_find_nearest_line (unit, addr,
|
||||
|
||||
line_p = lookup_address_in_line_info_table (unit->line_table,
|
||||
addr,
|
||||
filename_ptr,
|
||||
filename_ptr,
|
||||
linenumber_ptr);
|
||||
func_p = lookup_address_in_function_table (unit->function_table,
|
||||
func_p = lookup_address_in_function_table (unit->function_table,
|
||||
addr,
|
||||
functionname_ptr);
|
||||
return line_p || func_p;
|
||||
@ -1506,10 +1506,10 @@ _bfd_dwarf2_find_nearest_line (abfd, section, symbols, offset,
|
||||
/* Read each compilation unit from the section .debug_info, and check
|
||||
to see if it contains the address we are searching for. If yes,
|
||||
lookup the address, and return the line number info. If no, go
|
||||
on to the next compilation unit.
|
||||
on to the next compilation unit.
|
||||
|
||||
We keep a list of all the previously read compilation units, and
|
||||
a pointer to the next un-read compilation unit. Check the
|
||||
a pointer to the next un-read compilation unit. Check the
|
||||
previously read units before reading more. */
|
||||
struct dwarf2_debug *stash = elf_tdata (abfd)->dwarf2_find_line_info;
|
||||
|
||||
@ -1517,7 +1517,7 @@ _bfd_dwarf2_find_nearest_line (abfd, section, symbols, offset,
|
||||
bfd_vma addr = offset + section->vma;
|
||||
|
||||
struct comp_unit* each;
|
||||
|
||||
|
||||
*filename_ptr = NULL;
|
||||
*functionname_ptr = NULL;
|
||||
*linenumber_ptr = 0;
|
||||
@ -1528,7 +1528,7 @@ _bfd_dwarf2_find_nearest_line (abfd, section, symbols, offset,
|
||||
if (addr_size == 0)
|
||||
addr_size = 4;
|
||||
BFD_ASSERT (addr_size == 4 || addr_size == 8);
|
||||
|
||||
|
||||
if (! stash)
|
||||
{
|
||||
unsigned long total_size;
|
||||
@ -1553,7 +1553,7 @@ _bfd_dwarf2_find_nearest_line (abfd, section, symbols, offset,
|
||||
us to avoid reallocing the data as we add sections to the stash. */
|
||||
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);
|
||||
if (stash->info_ptr == NULL)
|
||||
return false;
|
||||
@ -1590,14 +1590,14 @@ _bfd_dwarf2_find_nearest_line (abfd, section, symbols, offset,
|
||||
relocs. There is a similar problem when the .debug_line
|
||||
section is processed as well (e.g., there may be relocs
|
||||
against the operand of the DW_LNE_set_address operator).
|
||||
|
||||
|
||||
Unfortunately getting hold of the reloc information is hard...
|
||||
|
||||
|
||||
For now, this means that disassembling object files (as
|
||||
opposed to fully executables) does not always work as well as
|
||||
we would like. */
|
||||
|
||||
/* A null info_ptr indicates that there is no dwarf2 info
|
||||
|
||||
/* A null info_ptr indicates that there is no dwarf2 info
|
||||
(or that an error occured while setting up the stash). */
|
||||
if (! stash->info_ptr)
|
||||
return false;
|
||||
@ -1605,7 +1605,7 @@ _bfd_dwarf2_find_nearest_line (abfd, section, symbols, offset,
|
||||
/* Check the previously read comp. units first. */
|
||||
for (each = stash->all_comp_units; each; each = each->next_unit)
|
||||
if (comp_unit_contains_address (each, addr))
|
||||
return comp_unit_find_nearest_line (each, addr, filename_ptr,
|
||||
return comp_unit_find_nearest_line (each, addr, filename_ptr,
|
||||
functionname_ptr, linenumber_ptr);
|
||||
|
||||
/* Read each remaining comp. units checking each as they are read. */
|
||||
@ -1623,7 +1623,7 @@ _bfd_dwarf2_find_nearest_line (abfd, section, symbols, offset,
|
||||
|
||||
if (length > 0)
|
||||
{
|
||||
each = parse_comp_unit (abfd, stash->info_ptr,
|
||||
each = parse_comp_unit (abfd, stash->info_ptr,
|
||||
stash->info_ptr + length,
|
||||
addr_size);
|
||||
stash->info_ptr += length;
|
||||
|
Loading…
Reference in New Issue
Block a user