diff options
| author |   Christian Borntraeger <borntraeger@de.ibm.com> | 2017-04-06 09:51:52 +0200 |
|---|---|---|
| committer |   Arnaldo Carvalho de Melo <acme@redhat.com> | 2017-04-11 15:23:40 -0300 |
| commit | d9f8dfa9baf9b6ae1f2f84f887176558ecde5268 (patch) | |
| tree | e8ac1e09d7c16fb53a3d4525d23d74206add0748 /tools/perf/arch/s390/annotate/instructions.c | |
| parent | perf annotate s390: Fix perf annotate error -95 (4.10 regression) (diff) | |
| download | wireguard-linux-d9f8dfa9baf9b6ae1f2f84f887176558ecde5268.tar.xz wireguard-linux-d9f8dfa9baf9b6ae1f2f84f887176558ecde5268.zip | |
perf annotate s390: Implement jump types for perf annotate
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>
Diffstat (limited to 'tools/perf/arch/s390/annotate/instructions.c')
| -rw-r--r-- | tools/perf/arch/s390/annotate/instructions.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/tools/perf/arch/s390/annotate/instructions.c b/tools/perf/arch/s390/annotate/instructions.c new file mode 100644 index 000000000000..745b4b1b8b21 --- /dev/null +++ b/tools/perf/arch/s390/annotate/instructions.c @@ -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; +} |