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perf symbols: Store the ELF symbol type in the symbol struct

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There is code that needs to see if a resolved address is a function, so,
since we're going to ditch the MAP__{FUNCTION,VARIABLE} split, store
that info in the per symbol struct.

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-9ugwxz0i8ryg5702rx8u5q6z@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Arnaldo Carvalho de Melo 2018-04-26 11:09:10 -03:00
parent e1f2a0d0f2
commit af30bffa2f
6 changed files with 14 additions and 10 deletions
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2
tools/perf/tests/hists_common.c
View File

@ -138,7 +138,7 @@ struct machine *setup_fake_machine(struct machines *machines)
struct fake_sym *fsym = &fake_symbols[i].syms[k];
sym = symbol__new(fsym->start, fsym->length,
STB_GLOBAL, fsym->name);
STB_GLOBAL, STT_FUNC, fsym->name);
if (sym == NULL) {
dso__put(dso);
goto out;

2
tools/perf/util/db-export.c
View File

@ -247,7 +247,7 @@ static int db_ids_from_al(struct db_export *dbe, struct addr_location *al,
*dso_db_id = dso->db_id;
if (!al->sym) {
al->sym = symbol__new(al->addr, 0, 0, "unknown");
al->sym = symbol__new(al->addr, 0, 0, 0, "unknown");
if (al->sym)
dso__insert_symbol(dso, al->map->type, al->sym);
}

1
tools/perf/util/srcline.c
View File

@ -103,6 +103,7 @@ static struct symbol *new_inline_sym(struct dso *dso,
inline_sym = symbol__new(base_sym ? base_sym->start : 0,
base_sym ? base_sym->end : 0,
base_sym ? base_sym->binding : 0,
base_sym ? base_sym->type : 0,
funcname);
if (inline_sym)
inline_sym->inlined = 1;

7
tools/perf/util/symbol-elf.c
View File

@ -364,7 +364,7 @@ int dso__synthesize_plt_symbols(struct dso *dso, struct symsrc *ss, struct map *
free(demangled);
f = symbol__new(plt_offset, plt_entry_size,
STB_GLOBAL, sympltname);
STB_GLOBAL, STT_FUNC, sympltname);
if (!f)
goto out_elf_end;
@ -390,7 +390,7 @@ int dso__synthesize_plt_symbols(struct dso *dso, struct symsrc *ss, struct map *
free(demangled);
f = symbol__new(plt_offset, plt_entry_size,
STB_GLOBAL, sympltname);
STB_GLOBAL, STT_FUNC, sympltname);
if (!f)
goto out_elf_end;
@ -1102,7 +1102,8 @@ int dso__load_sym(struct dso *dso, struct map *map, struct symsrc *syms_ss,
elf_name = demangled;
f = symbol__new(sym.st_value, sym.st_size,
GELF_ST_BIND(sym.st_info), elf_name);
GELF_ST_BIND(sym.st_info),
GELF_ST_TYPE(sym.st_info), elf_name);
free(demangled);
if (!f)
goto out_elf_end;

7
tools/perf/util/symbol.c
View File

@ -256,7 +256,7 @@ void __map_groups__fixup_end(struct map_groups *mg, enum map_type type)
up_write(&maps->lock);
}
struct symbol *symbol__new(u64 start, u64 len, u8 binding, const char *name)
struct symbol *symbol__new(u64 start, u64 len, u8 binding, u8 type, const char *name)
{
size_t namelen = strlen(name) + 1;
struct symbol *sym = calloc(1, (symbol_conf.priv_size +
@ -274,6 +274,7 @@ struct symbol *symbol__new(u64 start, u64 len, u8 binding, const char *name)
sym->start = start;
sym->end = len ? start + len : start;
sym->type = type;
sym->binding = binding;
sym->namelen = namelen - 1;
@ -682,7 +683,7 @@ static int map__process_kallsym_symbol(void *arg, const char *name,
* symbols, setting length to 0, and rely on
* symbols__fixup_end() to fix it up.
*/
sym = symbol__new(start, 0, kallsyms2elf_binding(type), name);
sym = symbol__new(start, 0, kallsyms2elf_binding(type), kallsyms2elf_type(type), name);
if (sym == NULL)
return -ENOMEM;
/*
@ -1395,7 +1396,7 @@ static int dso__load_perf_map(const char *map_path, struct dso *dso,
if (len + 2 >= line_len)
continue;
sym = symbol__new(start, size, STB_GLOBAL, line + len);
sym = symbol__new(start, size, STB_GLOBAL, STT_FUNC, line + len);
if (sym == NULL)
goto out_delete_line;

5
tools/perf/util/symbol.h
View File

@ -57,7 +57,8 @@ struct symbol {
u64 start;
u64 end;
u16 namelen;
u8 binding;
u8 type:4;
u8 binding:4;
u8 idle:1;
u8 ignore:1;
u8 inlined:1;
@ -292,7 +293,7 @@ void symbol__exit(void);
void symbol__elf_init(void);
int symbol__annotation_init(void);
struct symbol *symbol__new(u64 start, u64 len, u8 binding, const char *name);
struct symbol *symbol__new(u64 start, u64 len, u8 binding, u8 type, const char *name);
size_t __symbol__fprintf_symname_offs(const struct symbol *sym,
const struct addr_location *al,
bool unknown_as_addr,