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perf annotate s390: Implement jump types for perf annotate

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Implement simple detection for all kind of jumps and branches.

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: Andreas Krebbel <krebbel@linux.vnet.ibm.com>
Cc: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: linux-s390 <linux-s390@vger.kernel.org>
Cc: stable@kernel.org # v4.10+
Link: http://lkml.kernel.org/r/1491465112-45819-3-git-send-email-borntraeger@de.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Christian Borntraeger 2017-04-06 09:51:52 +02:00 committed by Arnaldo Carvalho de Melo
parent e77852b32d
commit d9f8dfa9ba
2 changed files with 32 additions and 0 deletions
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30
tools/perf/arch/s390/annotate/instructions.c Normal file
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@ -0,0 +1,30 @@
static struct ins_ops *s390__associate_ins_ops(struct arch *arch, const char *name)
{
struct ins_ops *ops = NULL;
/* catch all kind of jumps */
if (strchr(name, 'j') ||
!strncmp(name, "bct", 3) ||
!strncmp(name, "br", 2))
ops = &jump_ops;
/* override call/returns */
if (!strcmp(name, "bras") ||
!strcmp(name, "brasl") ||
!strcmp(name, "basr"))
ops = &call_ops;
if (!strcmp(name, "br"))
ops = &ret_ops;
arch__associate_ins_ops(arch, name, ops);
return ops;
}
static int s390__annotate_init(struct arch *arch)
{
if (!arch->initialized) {
arch->initialized = true;
arch->associate_instruction_ops = s390__associate_ins_ops;
}
return 0;
}

2
tools/perf/util/annotate.c
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@ -108,6 +108,7 @@ static int arch__associate_ins_ops(struct arch* arch, const char *name, struct i
#include "arch/arm64/annotate/instructions.c"
#include "arch/x86/annotate/instructions.c"
#include "arch/powerpc/annotate/instructions.c"
#include "arch/s390/annotate/instructions.c"
static struct arch architectures[] = {
{
@ -132,6 +133,7 @@ static struct arch architectures[] = {
},
{
.name = "s390",
.init = s390__annotate_init,
.objdump = {
.comment_char = '#',
},