From 7a997fe4019f556a81530d3a737d817a2b0d622f Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Sat, 12 May 2012 13:15:34 -0300 Subject: [PATCH] perf annotate: Augment lock instruction output It just chops off the 'lock' and uses the ins__find, etc machinery to call instruction specific parsers/beautifiers. Cc: David Ahern Cc: Frederic Weisbecker Cc: Mike Galbraith Cc: Namhyung Kim Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Stephane Eranian Link: http://lkml.kernel.org/n/tip-4913ba2dzakz5rivgumosqbh@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/annotate.c | 127 ++++++++++++++++++++++++++++++++++----------- tools/perf/util/annotate.h | 16 ++++-- 2 files changed, 109 insertions(+), 34 deletions(-) diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c index a6109dc..1dce098 100644 --- a/tools/perf/util/annotate.c +++ b/tools/perf/util/annotate.c @@ -18,6 +18,9 @@ const char *disassembler_style; +static struct ins *ins__find(const char *name); +static int disasm_line__parse(char *line, char **namep, char **rawp); + static int ins__raw_scnprintf(struct ins *ins, char *bf, size_t size, struct ins_operands *ops) { @@ -147,6 +150,53 @@ static int comment__symbol(char *raw, char *comment, u64 *addrp, char **namep) return 0; } +static int lock__parse(struct ins_operands *ops) +{ + char *name; + + ops->locked.ops = zalloc(sizeof(*ops->locked.ops)); + if (ops->locked.ops == NULL) + return 0; + + if (disasm_line__parse(ops->raw, &name, &ops->locked.ops->raw) < 0) + goto out_free_ops; + + ops->locked.ins = ins__find(name); + if (ops->locked.ins == NULL) + goto out_free_ops; + + if (!ops->locked.ins->ops) + return 0; + + if (ops->locked.ins->ops->parse) + ops->locked.ins->ops->parse(ops->locked.ops); + + return 0; + +out_free_ops: + free(ops->locked.ops); + ops->locked.ops = NULL; + return 0; +} + +static int lock__scnprintf(struct ins *ins, char *bf, size_t size, + struct ins_operands *ops) +{ + int printed; + + if (ops->locked.ins == NULL) + return ins__raw_scnprintf(ins, bf, size, ops); + + printed = scnprintf(bf, size, "%-6.6s ", ins->name); + return printed + ins__scnprintf(ops->locked.ins, bf + printed, + size - printed, ops->locked.ops); +} + +static struct ins_ops lock_ops = { + .parse = lock__parse, + .scnprintf = lock__scnprintf, +}; + static int mov__parse(struct ins_operands *ops) { char *s = strchr(ops->raw, ','), *target, *comment, prev; @@ -265,6 +315,7 @@ static struct ins instructions[] = { { .name = "addq", .ops = &mov_ops, }, { .name = "addw", .ops = &mov_ops, }, { .name = "and", .ops = &mov_ops, }, + { .name = "bts", .ops = &mov_ops, }, { .name = "call", .ops = &call_ops, }, { .name = "callq", .ops = &call_ops, }, { .name = "cmp", .ops = &mov_ops, }, @@ -314,6 +365,7 @@ static struct ins instructions[] = { { .name = "js", .ops = &jump_ops, }, { .name = "jz", .ops = &jump_ops, }, { .name = "lea", .ops = &mov_ops, }, + { .name = "lock", .ops = &lock_ops, }, { .name = "mov", .ops = &mov_ops, }, { .name = "movb", .ops = &mov_ops, }, { .name = "movdqa",.ops = &mov_ops, }, @@ -330,6 +382,7 @@ static struct ins instructions[] = { { .name = "test", .ops = &mov_ops, }, { .name = "testb", .ops = &mov_ops, }, { .name = "testl", .ops = &mov_ops, }, + { .name = "xadd", .ops = &mov_ops, }, }; static int ins__cmp(const void *name, const void *insp) @@ -420,6 +473,44 @@ static void disasm_line__init_ins(struct disasm_line *dl) dl->ins->ops->parse(&dl->ops); } +static int disasm_line__parse(char *line, char **namep, char **rawp) +{ + char *name = line, tmp; + + while (isspace(name[0])) + ++name; + + if (name[0] == '\0') + return -1; + + *rawp = name + 1; + + while ((*rawp)[0] != '\0' && !isspace((*rawp)[0])) + ++*rawp; + + tmp = (*rawp)[0]; + (*rawp)[0] = '\0'; + *namep = strdup(name); + + if (*namep == NULL) + goto out_free_name; + + (*rawp)[0] = tmp; + + if ((*rawp)[0] != '\0') { + (*rawp)++; + while (isspace((*rawp)[0])) + ++(*rawp); + } + + return 0; + +out_free_name: + free(*namep); + *namep = NULL; + return -1; +} + static struct disasm_line *disasm_line__new(s64 offset, char *line, size_t privsize) { struct disasm_line *dl = zalloc(sizeof(*dl) + privsize); @@ -431,35 +522,9 @@ static struct disasm_line *disasm_line__new(s64 offset, char *line, size_t privs goto out_delete; if (offset != -1) { - char *name = dl->line, tmp; - - while (isspace(name[0])) - ++name; - - if (name[0] == '\0') - goto out_delete; - - dl->ops.raw = name + 1; - - while (dl->ops.raw[0] != '\0' && - !isspace(dl->ops.raw[0])) - ++dl->ops.raw; - - tmp = dl->ops.raw[0]; - dl->ops.raw[0] = '\0'; - dl->name = strdup(name); - - if (dl->name == NULL) + if (disasm_line__parse(dl->line, &dl->name, &dl->ops.raw) < 0) goto out_free_line; - dl->ops.raw[0] = tmp; - - if (dl->ops.raw[0] != '\0') { - dl->ops.raw++; - while (isspace(dl->ops.raw[0])) - ++dl->ops.raw; - } - disasm_line__init_ins(dl); } } @@ -477,8 +542,12 @@ void disasm_line__free(struct disasm_line *dl) { free(dl->line); free(dl->name); - free(dl->ops.source.raw); - free(dl->ops.source.name); + if (dl->ins && dl->ins->ops == &lock_ops) { + free(dl->ops.locked.ops); + } else { + free(dl->ops.source.raw); + free(dl->ops.source.name); + } free(dl->ops.target.raw); free(dl->ops.target.name); free(dl); diff --git a/tools/perf/util/annotate.h b/tools/perf/util/annotate.h index 066d31d..b79d326 100644 --- a/tools/perf/util/annotate.h +++ b/tools/perf/util/annotate.h @@ -18,11 +18,17 @@ struct ins_operands { u64 addr; u64 offset; } target; - struct { - char *raw; - char *name; - u64 addr; - } source; + union { + struct { + char *raw; + char *name; + u64 addr; + } source; + struct { + struct ins *ins; + struct ins_operands *ops; + } locked; + }; }; struct ins_ops { -- 2.7.4