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gdb.trace: Use manually-defined start labels in unavailable-dwarf-piece.exp

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On powerpc64, foo/bar point to a function descriptor, not to function code.
Since there are no global labels pointing at the actual function code,
let's make our own.

Regression-tested on x86_64.

gdb/testsuite/ChangeLog:

	* gdb.trace/unavailable-dwarf-piece.c (foo): Add foo_start_lbl label.
	(bar): Add bar_start_lbl label.
	* gdb.trace/unavailable-dwarf-piece.exp: Use foo/bar_start_lbl instead
	of foo/bar for emitting DWARF and tracing.
This commit is contained in:
Marcin Kościelnicki
2016-03-05 14:48:47 +01:00
parent cc2c4da881
commit 4366d36e46
3 changed files with 13 additions and 4 deletions
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7
gdb/testsuite/ChangeLog
View File

@ -1,3 +1,10 @@
2016-03-09 Marcin Kościelnicki <koriakin@0x04.net>
* gdb.trace/unavailable-dwarf-piece.c (foo): Add foo_start_lbl label.
(bar): Add bar_start_lbl label.
* gdb.trace/unavailable-dwarf-piece.exp: Use foo/bar_start_lbl instead
of foo/bar for emitting DWARF and tracing.
2016-03-06 Sergio Durigan Junior <sergiodj@redhat.com>
* analyze-racy-logs.py: Set executable bit.

2
gdb/testsuite/gdb.trace/unavailable-dwarf-piece.c
View File

@ -54,6 +54,7 @@ dummy (void)
int
foo (struct s x, struct s y, struct s z)
{
asm (".global foo_start_lbl\nfoo_start_lbl:");
dummy ();
asm (".global foo_end_lbl\nfoo_end_lbl:");
return 0;
@ -62,6 +63,7 @@ foo (struct s x, struct s y, struct s z)
int
bar (struct t x, struct t y, struct t z)
{
asm (".global bar_start_lbl\nbar_start_lbl:");
dummy ();
asm (".global bar_end_lbl\nbar_end_lbl:");
return 0;

8
gdb/testsuite/gdb.trace/unavailable-dwarf-piece.exp
View File

@ -175,7 +175,7 @@ Dwarf::assemble $asm_file {
DW_TAG_subprogram {
{name foo}
{decl_file 1 sdata}
{low_pc foo addr}
{low_pc foo_start_lbl addr}
{high_pc foo_end_lbl addr}
} {
DW_TAG_formal_parameter {
@ -220,7 +220,7 @@ Dwarf::assemble $asm_file {
DW_TAG_subprogram {
{name bar}
{decl_file 1 sdata}
{low_pc bar addr}
{low_pc bar_start_lbl addr}
{high_pc bar_end_lbl addr}
} {
DW_TAG_formal_parameter {
@ -306,7 +306,7 @@ if ![gdb_target_supports_trace] {
gdb_breakpoint "end"
with_test_prefix "tracing foo" {
gdb_test "trace foo" ".*"
gdb_test "trace *foo_start_lbl" ".*"
gdb_test_no_output "tstart"
gdb_test "continue" "Continuing\\.\[ \r\n\]+Breakpoint.*"
gdb_test_no_output "tstop"
@ -320,7 +320,7 @@ with_test_prefix "tracing foo" {
}
with_test_prefix "tracing bar" {
gdb_test "trace bar" ".*"
gdb_test "trace *bar_start_lbl" ".*"
gdb_test_no_output "tstart"
gdb_test "continue" "Continuing\\.\[ \r\n\]+Breakpoint.*"
gdb_test_no_output "tstop"