Commit 85a84e4f authored by Arnaldo Carvalho de Melo's avatar Arnaldo Carvalho de Melo
Browse files

perf annotate: Pass function descriptor to its instruction parsing routines 

We need that to figure out if jumps have targets in a different
function.

E.g. _cpp_lex_token(), in /usr/libexec/gcc/x86_64-redhat-linux/5.3.1/cc1
has a line like this:

  jne    c469be <cpp_named_operator2name@@Base+0xa72>

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: https://lkml.kernel.org/n/tip-ris0ioziyp469pofpzix2atb@git.kernel.org


Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent 425859ff

tools/perf/arch/s390/annotate/instructions.c

+3 −2
Original line number Diff line number Diff line
@@ -2,9 +2,10 @@ 
#include <linux/compiler.h>



static int s390_call__parse(struct arch *arch, struct ins_operands *ops,

			    struct map *map)

			    struct map_symbol *ms)

{

	char *endptr, *tok, *name;

	struct map *map = ms->map;

	struct addr_map_symbol target = {

		.map = map,

	};
@@ -54,7 +55,7 @@ static struct ins_ops s390_call_ops = { 


static int s390_mov__parse(struct arch *arch __maybe_unused,

			   struct ins_operands *ops,

			   struct map *map __maybe_unused)

			   struct map_symbol *ms __maybe_unused)

{

	char *s = strchr(ops->raw, ','), *target, *endptr;

tools/perf/util/annotate.c

+17 −13
Original line number Diff line number Diff line
@@ -202,9 +202,10 @@ bool ins__is_fused(struct arch *arch, const char *ins1, const char *ins2) 
	return arch->ins_is_fused(arch, ins1, ins2);

}



static int call__parse(struct arch *arch, struct ins_operands *ops, struct map *map)

static int call__parse(struct arch *arch, struct ins_operands *ops, struct map_symbol *ms)

{

	char *endptr, *tok, *name;

	struct map *map = ms->map;

	struct addr_map_symbol target = {

		.map = map,

	};
@@ -272,7 +273,7 @@ bool ins__is_call(const struct ins *ins) 
	return ins->ops == &call_ops || ins->ops == &s390_call_ops;

}



static int jump__parse(struct arch *arch __maybe_unused, struct ins_operands *ops, struct map *map __maybe_unused)

static int jump__parse(struct arch *arch __maybe_unused, struct ins_operands *ops, struct map_symbol *ms __maybe_unused)

{

	const char *s = strchr(ops->raw, '+');

	const char *c = strchr(ops->raw, ',');
@@ -365,7 +366,7 @@ static int comment__symbol(char *raw, char *comment, u64 *addrp, char **namep) 
	return 0;

}



static int lock__parse(struct arch *arch, struct ins_operands *ops, struct map *map)

static int lock__parse(struct arch *arch, struct ins_operands *ops, struct map_symbol *ms)

{

	ops->locked.ops = zalloc(sizeof(*ops->locked.ops));

	if (ops->locked.ops == NULL)
@@ -380,7 +381,7 @@ static int lock__parse(struct arch *arch, struct ins_operands *ops, struct map * 
		goto out_free_ops;



	if (ops->locked.ins.ops->parse &&

	    ops->locked.ins.ops->parse(arch, ops->locked.ops, map) < 0)

	    ops->locked.ins.ops->parse(arch, ops->locked.ops, ms) < 0)

		goto out_free_ops;



	return 0;
@@ -423,7 +424,7 @@ static struct ins_ops lock_ops = { 
	.scnprintf = lock__scnprintf,

};



static int mov__parse(struct arch *arch, struct ins_operands *ops, struct map *map __maybe_unused)

static int mov__parse(struct arch *arch, struct ins_operands *ops, struct map_symbol *ms __maybe_unused)

{

	char *s = strchr(ops->raw, ','), *target, *comment, prev;
@@ -484,7 +485,7 @@ static struct ins_ops mov_ops = { 
	.scnprintf = mov__scnprintf,

};



static int dec__parse(struct arch *arch __maybe_unused, struct ins_operands *ops, struct map *map __maybe_unused)

static int dec__parse(struct arch *arch __maybe_unused, struct ins_operands *ops, struct map_symbol *ms __maybe_unused)

{

	char *target, *comment, *s, prev;
@@ -923,14 +924,14 @@ int hist_entry__inc_addr_samples(struct hist_entry *he, struct perf_sample *samp 
	return symbol__inc_addr_samples(he->ms.sym, he->ms.map, evidx, ip, sample);

}



static void disasm_line__init_ins(struct disasm_line *dl, struct arch *arch, struct map *map)

static void disasm_line__init_ins(struct disasm_line *dl, struct arch *arch, struct map_symbol *ms)

{

	dl->ins.ops = ins__find(arch, dl->ins.name);



	if (!dl->ins.ops)

		return;



	if (dl->ins.ops->parse && dl->ins.ops->parse(arch, &dl->ops, map) < 0)

	if (dl->ins.ops->parse && dl->ins.ops->parse(arch, &dl->ops, ms) < 0)

		dl->ins.ops = NULL;

}
@@ -967,7 +968,7 @@ out_free_name: 
struct annotate_args {

	size_t			 privsize;

	struct arch		*arch;

	struct map		*map;

	struct map_symbol	 ms;

	struct perf_evsel	*evsel;

	s64			 offset;

	char			*line;
@@ -1049,7 +1050,7 @@ static struct disasm_line *disasm_line__new(struct annotate_args *args) 
			if (disasm_line__parse(dl->al.line, &dl->ins.name, &dl->ops.raw) < 0)

				goto out_free_line;



			disasm_line__init_ins(dl, args->arch, args->map);

			disasm_line__init_ins(dl, args->arch, &args->ms);

		}

	}
@@ -1307,7 +1308,7 @@ static int symbol__parse_objdump_line(struct symbol *sym, FILE *file, 
				      struct annotate_args *args,

				      int *line_nr)

{

	struct map *map = args->map;

	struct map *map = args->ms.map;

	struct annotation *notes = symbol__annotation(sym);

	struct disasm_line *dl;

	char *line = NULL, *parsed_line, *tmp, *tmp2;
@@ -1354,6 +1355,7 @@ static int symbol__parse_objdump_line(struct symbol *sym, FILE *file, 
	args->offset  = offset;

	args->line    = parsed_line;

	args->line_nr = *line_nr;

	args->ms.sym  = sym;



	dl = disasm_line__new(args);

	free(line);
@@ -1506,7 +1508,7 @@ fallback: 


static int symbol__disassemble(struct symbol *sym, struct annotate_args *args)

{

	struct map *map = args->map;

	struct map *map = args->ms.map;

	struct dso *dso = map->dso;

	char *command;

	FILE *file;
@@ -1705,7 +1707,6 @@ int symbol__annotate(struct symbol *sym, struct map *map, 
{

	struct annotate_args args = {

		.privsize	= privsize,

		.map		= map,

		.evsel		= evsel,

	};

	struct perf_env *env = perf_evsel__env(evsel);
@@ -1731,6 +1732,9 @@ int symbol__annotate(struct symbol *sym, struct map *map, 
		}

	}



	args.ms.map = map;

	args.ms.sym = sym;



	return symbol__disassemble(sym, &args);

}

tools/perf/util/annotate.h

+1 −1
Original line number Diff line number Diff line
@@ -46,7 +46,7 @@ struct arch; 


struct ins_ops {

	void (*free)(struct ins_operands *ops);

	int (*parse)(struct arch *arch, struct ins_operands *ops, struct map *map);

	int (*parse)(struct arch *arch, struct ins_operands *ops, struct map_symbol *ms);

	int (*scnprintf)(struct ins *ins, char *bf, size_t size,

			 struct ins_operands *ops);

};

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