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gdb.trace/tfind.exp: Force call via global entry point on ppc64le. 

tfind.exp sets a breakpoint on *gdb_recursion_test, which is the global
entry point on ppc64le, and won't be hit, since the call uses
the local entry.  Fix by calling the function via a pointer in a global
variable, forcing use of the global entry.

This patch is a slightly modified hunk extracted from
https://sourceware.org/ml/gdb-patches/2015-07/msg00353.html

gdb/testsuite/ChangeLog:

2016-03-09  Wei-cheng Wang  <cole945@gmail.com>
	    Marcin Kościelnicki  <koriakin@0x04.net>

	* gdb.trace/actions.c (gdb_recursion_test_fp): New typedef.
	(gdb_recursion_test_ptr): New global variable.
	(gdb_recursion_test): Call gdb_recursion_test_ptr instead of
	gdb_recursion_test.
	(gdb_c_test): Ditto.
This commit is contained in:
Marcin Kościelnicki 2016-02-19 05:04:13 +01:00
parent ba84e0da35
commit f77198c878
2 changed files with 16 additions and 2 deletions
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9
gdb/testsuite/ChangeLog
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@ -1,3 +1,12 @@
2016-03-09 Wei-cheng Wang <cole945@gmail.com>
Marcin Kościelnicki <koriakin@0x04.net>
* gdb.trace/actions.c (gdb_recursion_test_fp): New typedef.
(gdb_recursion_test_ptr): New global variable.
(gdb_recursion_test): Call gdb_recursion_test_ptr instead of
gdb_recursion_test.
(gdb_c_test): Ditto.
2016-03-09 Marcin Kościelnicki <koriakin@0x04.net>
* gdb.trace/change-loc.exp: Don't depend on tracepoint location

9
gdb/testsuite/gdb.trace/actions.c
View File

@ -48,6 +48,11 @@ static union GDB_UNION_TEST
} gdb_union1_test;
void gdb_recursion_test (int, int, int, int, int, int, int);
/* This function pointer is used to force the function to be called via
the global entry instead of local entry on ppc64le; otherwise, breakpoints
set at the global entry (i.e., '*foo') will not be hit. */
typedef void (*gdb_recursion_test_fp) (int, int, int, int, int, int, int);
gdb_recursion_test_fp gdb_recursion_test_ptr = gdb_recursion_test;
void gdb_recursion_test (int depth,
int q1,
@ -66,7 +71,7 @@ void gdb_recursion_test (int depth,
q5 = q6; /* gdbtestline 6 */
q6 = q; /* gdbtestline 7 */
if (depth--) /* gdbtestline 8 */
gdb_recursion_test (depth, q1, q2, q3, q4, q5, q6); /* gdbtestline 9 */
gdb_recursion_test_ptr (depth, q1, q2, q3, q4, q5, q6); /* gdbtestline 9 */
}
@ -105,7 +110,7 @@ unsigned long gdb_c_test( unsigned long *parm )
gdb_structp_test = &gdb_struct1_test;
gdb_structpp_test = &gdb_structp_test;
gdb_recursion_test (3, (long) parm[1], (long) parm[2], (long) parm[3],
gdb_recursion_test_ptr (3, (long) parm[1], (long) parm[2], (long) parm[3],
(long) parm[4], (long) parm[5], (long) parm[6]);
gdb_char_test = gdb_short_test = gdb_long_test = 0;