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* dwarf2read.c (handle_DW_AT_stmt_list): New function.

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(read_file_scope, read_type_unit_scope): Use it.
This commit is contained in:
Tom Tromey
2011-07-11 17:17:26 +00:00
parent e215319634
commit 2ab9532817
2 changed files with 39 additions and 18 deletions
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5
gdb/ChangeLog
View File

@ -1,3 +1,8 @@
2011-07-11 Tom Tromey <tromey@redhat.com>
* dwarf2read.c (handle_DW_AT_stmt_list): New function.
(read_file_scope, read_type_unit_scope): Use it.
2011-07-11 Jan Kratochvil <jan.kratochvil@redhat.com> 2011-07-11 Jan Kratochvil <jan.kratochvil@redhat.com>
* dwarf2expr.c (read_sleb128): Fix signed extension overflowing host * dwarf2expr.c (read_sleb128): Fix signed extension overflowing host

52
gdb/dwarf2read.c
View File

@ -5478,6 +5478,35 @@ find_file_and_directory (struct die_info *die, struct dwarf2_cu *cu,
*name = "<unknown>"; *name = "<unknown>";
} }
/* Handle DW_AT_stmt_list for a compilation unit. */
static void
handle_DW_AT_stmt_list (struct die_info *die, struct dwarf2_cu *cu,
const char *comp_dir)
{
struct attribute *attr;
struct objfile *objfile = cu->objfile;
bfd *abfd = objfile->obfd;
/* Decode line number information if present. We do this before
processing child DIEs, so that the line header table is available
for DW_AT_decl_file. */
attr = dwarf2_attr (die, DW_AT_stmt_list, cu);
if (attr)
{
unsigned int line_offset = DW_UNSND (attr);
struct line_header *line_header
= dwarf_decode_line_header (line_offset, abfd, cu);
if (line_header)
{
cu->line_header = line_header;
make_cleanup (free_cu_line_header, cu);
dwarf_decode_lines (line_header, comp_dir, abfd, cu, NULL);
}
}
}
/* Process DW_TAG_compile_unit. */ /* Process DW_TAG_compile_unit. */
static void static void
@ -5492,7 +5521,6 @@ read_file_scope (struct die_info *die, struct dwarf2_cu *cu)
char *comp_dir = NULL; char *comp_dir = NULL;
struct die_info *child_die; struct die_info *child_die;
bfd *abfd = objfile->obfd; bfd *abfd = objfile->obfd;
struct line_header *line_header = 0;
CORE_ADDR baseaddr; CORE_ADDR baseaddr;
baseaddr = ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile)); baseaddr = ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile));
@ -5535,21 +5563,7 @@ read_file_scope (struct die_info *die, struct dwarf2_cu *cu)
initialize_cu_func_list (cu); initialize_cu_func_list (cu);
/* Decode line number information if present. We do this before handle_DW_AT_stmt_list (die, cu, comp_dir);
processing child DIEs, so that the line header table is available
for DW_AT_decl_file. */
attr = dwarf2_attr (die, DW_AT_stmt_list, cu);
if (attr)
{
unsigned int line_offset = DW_UNSND (attr);
line_header = dwarf_decode_line_header (line_offset, abfd, cu);
if (line_header)
{
cu->line_header = line_header;
make_cleanup (free_cu_line_header, cu);
dwarf_decode_lines (line_header, comp_dir, abfd, cu, NULL);
}
}
/* Process all dies in compilation unit. */ /* Process all dies in compilation unit. */
if (die->child != NULL) if (die->child != NULL)
@ -5567,11 +5581,11 @@ read_file_scope (struct die_info *die, struct dwarf2_cu *cu)
header, so we can only read it if we've read the header header, so we can only read it if we've read the header
successfully. */ successfully. */
attr = dwarf2_attr (die, DW_AT_macro_info, cu); attr = dwarf2_attr (die, DW_AT_macro_info, cu);
if (attr && line_header) if (attr && cu->line_header)
{ {
unsigned int macro_offset = DW_UNSND (attr); unsigned int macro_offset = DW_UNSND (attr);
dwarf_decode_macros (line_header, macro_offset, dwarf_decode_macros (cu->line_header, macro_offset,
comp_dir, abfd, cu); comp_dir, abfd, cu);
} }
do_cleanups (back_to); do_cleanups (back_to);
@ -5636,6 +5650,8 @@ read_type_unit_scope (struct die_info *die, struct dwarf2_cu *cu)
record_debugformat ("DWARF 2"); record_debugformat ("DWARF 2");
record_producer (cu->producer); record_producer (cu->producer);
handle_DW_AT_stmt_list (die, cu, comp_dir);
/* Process the dies in the type unit. */ /* Process the dies in the type unit. */
if (die->child == NULL) if (die->child == NULL)
{ {