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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: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Arnaldo Carvalho de Melo 2018-03-20 16:19:08 -03:00
parent 425859ff0d
commit 85a84e4f81
3 changed files with 21 additions and 16 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
tools/perf/arch/s390/annotate/instructions.c
View File

@ -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;

30
tools/perf/util/annotate.c
View File

@ -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);
}

2
tools/perf/util/annotate.h
View File

@ -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);
};