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More tests in gdb.arch/insn-reloc.c

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This patch adds more tests in gdb.arch/insn-reloc.c to cover
instruction BL and cover B.CON when CON is false.  These new added
tests can be used for displaced stepping too.

gdb/testsuite:

2015-10-12  Yao Qi  <yao.qi@linaro.org>

	* gdb.arch/insn-reloc.c (can_relocate_bcond): Rename to ...
	(can_relocate_bcond_true): ... it.
	(can_relocate_bcond_false): New function.
	(foo): Likewise.
	(can_relocate_bl): Likewise.
	(testcases) [__aarch64__]: Add can_relocate_bcond_false and
	can_relocate_bl.
This commit is contained in:
Yao Qi 2015-10-12 11:28:38 +01:00
parent 2520f728b7
commit 8240f4421f
2 changed files with 57 additions and 3 deletions
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10
gdb/testsuite/ChangeLog
View file

@ -1,3 +1,13 @@
2015-10-12 Yao Qi <yao.qi@linaro.org>
* gdb.arch/insn-reloc.c (can_relocate_bcond): Rename to ...
(can_relocate_bcond_true): ... it.
(can_relocate_bcond_false): New function.
(foo): Likewise.
(can_relocate_bl): Likewise.
(testcases) [__aarch64__]: Add can_relocate_bcond_false and
can_relocate_bl.
2015-10-12 Pierre-Marie de Rodat <derodat@adacore.com>
* gdb.base/nested-addr.c: New file.

50
gdb/testsuite/gdb.arch/insn-reloc.c
View file

@ -159,7 +159,7 @@ can_relocate_b (void)
*/
static void
can_relocate_bcond (void)
can_relocate_bcond_true (void)
{
int ok = 0;
@ -469,6 +469,48 @@ can_relocate_ldr (void)
else
fail ();
}
/* Make sure we can relocate a B.cond instruction and condition is false. */
static void
can_relocate_bcond_false (void)
{
int ok = 0;
asm (" mov x0, #8\n"
" tst x0, #8\n" /* Clear the Z flag. */
"set_point10:\n" /* Set tracepoint here. */
" b.eq 0b\n" /* Condition is false. */
" mov %[ok], #1\n"
" b 1f\n"
"0:\n"
" mov %[ok], #0\n"
"1:\n"
: [ok] "=r" (ok)
:
: "0", "cc");
if (ok == 1)
pass ();
else
fail ();
}
static void
foo (void)
{
}
/* Make sure we can relocate a BL instruction. */
static void
can_relocate_bl (void)
{
asm ("set_point11:\n"
" bl foo\n"
" bl pass\n"); /* Test that LR is updated correctly. */
}
#endif
/* Functions testing relocations need to be placed here. GDB will read
@ -482,7 +524,7 @@ static testcase_ftype testcases[] = {
can_relocate_jump
#elif (defined __aarch64__)
can_relocate_b,
can_relocate_bcond,
can_relocate_bcond_true,
can_relocate_cbz,
can_relocate_cbnz,
can_relocate_tbz,
@ -490,7 +532,9 @@ static testcase_ftype testcases[] = {
can_relocate_adr_forward,
can_relocate_adr_backward,
can_relocate_adrp,
can_relocate_ldr
can_relocate_ldr,
can_relocate_bcond_false,
can_relocate_bl,
#endif
};