diff options
author | Kim Phillips <kim.phillips@arm.com> | 2018-08-27 23:08:07 +0300 |
---|---|---|
committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2018-08-30 21:52:25 +0300 |
commit | 58094c48f4079cfc784f53a73caaa446db436389 (patch) | |
tree | 604c5649b67b3c667b3ff97f98b51a54fdc9d3b3 /tools/perf/arch | |
parent | 3de3e8bbf302545ef9acebb9f900939ac5c3820f (diff) | |
download | linux-58094c48f4079cfc784f53a73caaa446db436389.tar.xz |
perf annotate: Handle arm64 move instructions
Add default handler for non-jump instructions. This really only has an
effect on instructions that compute a PC-relative address, such as
'adrp,' as seen in these couple of examples:
BEFORE: adrp x0, ffff20000aa11000 <kallsyms_token_index+0xce000>
AFTER: adrp x0, kallsyms_token_index+0xce000
BEFORE: adrp x23, ffff20000ae94000 <__per_cpu_load>
AFTER: adrp x23, __per_cpu_load
The implementation is identical to that of s390, but with a slight
adjustment for objdump whitespace propagation (arm64 objdump puts spaces
after commas, whereas s390's presumably doesn't).
The mov__scnprintf() declaration is moved from s390's to arm64's
instructions.c because arm64's gets included before s390's.
Committer testing:
Ran 'perf annotate --stdio2 > /tmp/{before,after}' no diff.
Signed-off-by: Kim Phillips <kim.phillips@arm.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Tested-by: Thomas Richter <tmricht@linux.vnet.ibm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-arm-kernel@lists.infradead.org
Link: http://lkml.kernel.org/r/20180827150807.304110d2e9919a17c832ca48@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/arch')
-rw-r--r-- | tools/perf/arch/arm64/annotate/instructions.c | 59 | ||||
-rw-r--r-- | tools/perf/arch/s390/annotate/instructions.c | 2 |
2 files changed, 58 insertions, 3 deletions
diff --git a/tools/perf/arch/arm64/annotate/instructions.c b/tools/perf/arch/arm64/annotate/instructions.c index 6688977e4ac7..76c6345a57d5 100644 --- a/tools/perf/arch/arm64/annotate/instructions.c +++ b/tools/perf/arch/arm64/annotate/instructions.c @@ -8,6 +8,63 @@ struct arm64_annotate { jump_insn; }; +static int arm64_mov__parse(struct arch *arch __maybe_unused, + struct ins_operands *ops, + struct map_symbol *ms __maybe_unused) +{ + char *s = strchr(ops->raw, ','), *target, *endptr; + + if (s == NULL) + return -1; + + *s = '\0'; + ops->source.raw = strdup(ops->raw); + *s = ','; + + if (ops->source.raw == NULL) + return -1; + + target = ++s; + ops->target.raw = strdup(target); + if (ops->target.raw == NULL) + goto out_free_source; + + ops->target.addr = strtoull(target, &endptr, 16); + if (endptr == target) + goto out_free_target; + + s = strchr(endptr, '<'); + if (s == NULL) + goto out_free_target; + endptr = strchr(s + 1, '>'); + if (endptr == NULL) + goto out_free_target; + + *endptr = '\0'; + *s = ' '; + ops->target.name = strdup(s); + *s = '<'; + *endptr = '>'; + if (ops->target.name == NULL) + goto out_free_target; + + return 0; + +out_free_target: + zfree(&ops->target.raw); +out_free_source: + zfree(&ops->source.raw); + return -1; +} + +static int mov__scnprintf(struct ins *ins, char *bf, size_t size, + struct ins_operands *ops); + +static struct ins_ops arm64_mov_ops = { + .parse = arm64_mov__parse, + .scnprintf = mov__scnprintf, +}; + static struct ins_ops *arm64__associate_instruction_ops(struct arch *arch, const char *name) { struct arm64_annotate *arm = arch->priv; @@ -21,7 +78,7 @@ static struct ins_ops *arm64__associate_instruction_ops(struct arch *arch, const else if (!strcmp(name, "ret")) ops = &ret_ops; else - return NULL; + ops = &arm64_mov_ops; arch__associate_ins_ops(arch, name, ops); return ops; diff --git a/tools/perf/arch/s390/annotate/instructions.c b/tools/perf/arch/s390/annotate/instructions.c index cee4e2f7c057..de0dd66dbb48 100644 --- a/tools/perf/arch/s390/annotate/instructions.c +++ b/tools/perf/arch/s390/annotate/instructions.c @@ -100,8 +100,6 @@ out_free_source: return -1; } -static int mov__scnprintf(struct ins *ins, char *bf, size_t size, - struct ins_operands *ops); static struct ins_ops s390_mov_ops = { .parse = s390_mov__parse, |