Commit-ID: cfef25b8daf7e4b49c84e174a904af9d89dc7c46 Gitweb: http://git.kernel.org/tip/cfef25b8daf7e4b49c84e174a904af9d89dc7c46 Author: Russell King <rmk+ker...@arm.linux.org.uk> AuthorDate: Sun, 6 Dec 2015 23:07:13 +0000 Committer: Arnaldo Carvalho de Melo <a...@redhat.com> CommitDate: Mon, 7 Dec 2015 18:13:00 -0300
perf annotate: ARM support Add basic support to parse ARM assembly. This: * enables perf to correctly show the disassembly, rather than chopping some constants off at the '#' (which is not a comment character on ARM). * allows perf to identify ARM instructions that branch to other parts within the same function, thereby properly annotating them. * allows perf to identify function calls, allowing called functions to be followed in the annotated view. Signed-off-by: Russell King <rmk+ker...@arm.linux.org.uk> Cc: Peter Zijlstra <a.p.zijls...@chello.nl> Cc: Will Deacon <will.dea...@arm.com> Link: http://lkml.kernel.org/n/tip-owp1uj0nmcgfrlppfyeet...@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <a...@redhat.com> --- tools/perf/util/annotate.c | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c index 1dd1949..b795b69 100644 --- a/tools/perf/util/annotate.c +++ b/tools/perf/util/annotate.c @@ -65,6 +65,11 @@ static int call__parse(struct ins_operands *ops) name++; +#ifdef __arm__ + if (strchr(name, '+')) + return -1; +#endif + tok = strchr(name, '>'); if (tok == NULL) return -1; @@ -246,7 +251,11 @@ static int mov__parse(struct ins_operands *ops) return -1; target = ++s; +#ifdef __arm__ + comment = strchr(s, ';'); +#else comment = strchr(s, '#'); +#endif if (comment != NULL) s = comment - 1; @@ -354,6 +363,20 @@ static struct ins instructions[] = { { .name = "addq", .ops = &mov_ops, }, { .name = "addw", .ops = &mov_ops, }, { .name = "and", .ops = &mov_ops, }, +#ifdef __arm__ + { .name = "b", .ops = &jump_ops, }, // might also be a call + { .name = "bcc", .ops = &jump_ops, }, + { .name = "bcs", .ops = &jump_ops, }, + { .name = "beq", .ops = &jump_ops, }, + { .name = "bge", .ops = &jump_ops, }, + { .name = "bgt", .ops = &jump_ops, }, + { .name = "bhi", .ops = &jump_ops, }, + { .name = "bl", .ops = &call_ops, }, + { .name = "blt", .ops = &jump_ops, }, + { .name = "bls", .ops = &jump_ops, }, + { .name = "blx", .ops = &call_ops, }, + { .name = "bne", .ops = &jump_ops, }, +#endif { .name = "bts", .ops = &mov_ops, }, { .name = "call", .ops = &call_ops, }, { .name = "callq", .ops = &call_ops, }, -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
