perf annotate: Resolve symbols using objdump comment for single op ins
Starting with inc, incl, dec, decl. Requested-by: Linus Torvalds <torvalds@linux-foundation.org> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-jvh0jspefr5jyn0l7qko12st@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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@ -205,6 +205,47 @@ static struct ins_ops mov_ops = {
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.scnprintf = mov__scnprintf,
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};
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static int dec__parse(struct ins_operands *ops)
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{
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char *target, *comment, *s, prev;
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target = s = ops->raw;
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while (s[0] != '\0' && !isspace(s[0]))
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++s;
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prev = *s;
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*s = '\0';
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ops->target.raw = strdup(target);
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*s = prev;
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if (ops->target.raw == NULL)
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return -1;
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comment = strchr(s, '#');
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if (comment == NULL)
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return 0;
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while (comment[0] != '\0' && isspace(comment[0]))
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++comment;
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comment__symbol(ops->target.raw, comment, &ops->target.addr, &ops->target.name);
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return 0;
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}
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static int dec__scnprintf(struct ins *ins, char *bf, size_t size,
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struct ins_operands *ops)
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{
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return scnprintf(bf, size, "%-6.6s %s", ins->name,
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ops->target.name ?: ops->target.raw);
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}
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static struct ins_ops dec_ops = {
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.parse = dec__parse,
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.scnprintf = dec__scnprintf,
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};
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static int nop__scnprintf(struct ins *ins __used, char *bf, size_t size,
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struct ins_operands *ops __used)
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{
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@ -232,7 +273,11 @@ static struct ins instructions[] = {
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{ .name = "cmpq", .ops = &mov_ops, },
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{ .name = "cmpw", .ops = &mov_ops, },
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{ .name = "cmpxch", .ops = &mov_ops, },
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{ .name = "dec", .ops = &dec_ops, },
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{ .name = "decl", .ops = &dec_ops, },
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{ .name = "imul", .ops = &mov_ops, },
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{ .name = "inc", .ops = &dec_ops, },
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{ .name = "incl", .ops = &dec_ops, },
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{ .name = "ja", .ops = &jump_ops, },
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{ .name = "jae", .ops = &jump_ops, },
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{ .name = "jb", .ops = &jump_ops, },
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