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testsuite/gdb.dwarf2: dw2-case-insensitive.exp: p fuNC_lang fails on arm

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dw2-case-insensitive.exp: p fuNC_lang fails on arm. The problem occurs
when thumb mode code is generated. On ARM last bit of function pointer
value indicates whether the target function is an ARM (if 0) or Thumb
(if 1) routine. The PC address should refer to actual address in
either case. This patch adds new compile unit and function labels to
code which act as address ranges of compile unit and functions in
debug information. Therefore address ranges will have correct
addresses and not the ones with an incremented least significant bit.
This patch has been tested on x86_64 and arm machines.

gdb/testsuite/ChangeLog:

2013-11-14  Omair Javaid  <Omair.Javaid@linaro.org>

        * gdb.dwarf2/dw2-case-insensitive-debug.S: Updated compile unit
	and function label names.
        * gdb.dwarf2/dw2-case-insensitive.c: Created function and
	compile unit labels.
This commit is contained in:
Omair Javaid
2013-11-14 15:16:20 +00:00
committed by Will Newton
parent 31fc8a0b2f
commit c7e8af9b3b
3 changed files with 23 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
gdb/testsuite/ChangeLog
View File

@ -1,3 +1,10 @@
2013-11-14 Omair Javaid <Omair.Javaid@linaro.org>
* gdb.dwarf2/dw2-case-insensitive-debug.S: Updated compile unit
and function label names.
* gdb.dwarf2/dw2-case-insensitive.c: Created function and
compile unit labels.
2013-11-14 Joel Brobecker <brobecker@adacore.com>
* gdb.mi/mi-language.exp: New file.

8
gdb/testsuite/gdb.dwarf2/dw2-case-insensitive-debug.S
View File

@ -29,14 +29,14 @@
.ascii "file1.txt\0" /* DW_AT_name */
.ascii "GNU C 3.3.3\0" /* DW_AT_producer */
.byte 8 /* DW_AT_language (DW_LANG_Fortran90) */
.4byte FUNC_lang /* DW_AT_low_pc */
.4byte main /* DW_AT_high_pc */
.4byte cu_text_start /* DW_AT_low_pc */
.4byte cu_text_end /* DW_AT_high_pc */
.uleb128 3 /* Abbrev: DW_TAG_subprogram */
.byte 1 /* DW_AT_external */
.ascii "FUNC_lang\0" /* DW_AT_name */
.4byte FUNC_lang /* DW_AT_low_pc */
.4byte main /* DW_AT_high_pc */
.4byte FUNC_lang_start /* DW_AT_low_pc */
.4byte FUNC_lang_end /* DW_AT_high_pc */
.byte 1 /* DW_AT_prototyped */
.4byte .Ltype - .Lcu1_begin /* DW_AT_type */

12
gdb/testsuite/gdb.dwarf2/dw2-case-insensitive.c
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@ -16,12 +16,21 @@
along with this program. If not, see <http://www.gnu.org/licenses/>. */
/* Use DW_LANG_Fortran90 for case insensitive DWARF. */
asm (".globl cu_text_start");
asm ("cu_text_start:");
asm (".globl FUNC_lang_start");
asm (".p2align 4");
asm ("FUNC_lang_start:");
void
FUNC_lang (void)
{
}
asm (".globl FUNC_lang_end");
asm ("FUNC_lang_end:");
/* Symbol is present only in ELF .symtab. */
void
@ -36,3 +45,6 @@ main (void)
FUNC_symtab ();
return 0;
}
asm (".globl cu_text_end");
asm ("cu_text_end:");