forked from luck/tmp_suning_uos_patched
perf evsel: Allow unresolved symbol names to be printed as addresses
The fprintf_sym() and fprintf_callchain() methods now allow users to change the existing behaviour of showing "[unknown]" as the name of unresolved symbols to instead show "[0x123456]", i.e. its address. The current patch doesn't change tools to use this facility, the results from 'perf trace' and 'perf script' cotinue like: 70.109 ( 0.001 ms): qemu-system-x8/10153 poll(ufds: 0x7f2d93ffe870, nfds: 1) = 0 Timeout [unknown] (/usr/lib64/libc-2.22.so) [unknown] (/usr/lib64/libspice-server.so.1.10.0) [unknown] (/usr/lib64/libspice-server.so.1.10.0) [unknown] (/usr/lib64/libspice-server.so.1.10.0) start_thread+0xca (/usr/lib64/libpthread-2.22.so) __clone+0x6d (/usr/lib64/libc-2.22.so) The next patch will make 'perf trace' use the new formatting. Suggested-by: Milian Wolff <milian.wolff@kdab.com> 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: http://lkml.kernel.org/n/tip-fja1ods5vqpg42mdz09xcz3r@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
parent
fde54b7860
commit
fd4be13067
|
@ -1966,6 +1966,7 @@ int perf_evsel__fprintf_callchain(struct perf_evsel *evsel, struct perf_sample *
|
|||
int print_symoffset = print_opts & PRINT_IP_OPT_SYMOFFSET;
|
||||
int print_oneline = print_opts & PRINT_IP_OPT_ONELINE;
|
||||
int print_srcline = print_opts & PRINT_IP_OPT_SRCLINE;
|
||||
int print_unknown_as_addr = print_opts & PRINT_IP_OPT_UNKNOWN_AS_ADDR;
|
||||
char s = print_oneline ? ' ' : '\t';
|
||||
|
||||
if (sample->callchain) {
|
||||
|
@ -2003,12 +2004,16 @@ int perf_evsel__fprintf_callchain(struct perf_evsel *evsel, struct perf_sample *
|
|||
|
||||
if (print_sym) {
|
||||
printed += fprintf(fp, " ");
|
||||
node_al.addr = addr;
|
||||
node_al.map = node->map;
|
||||
|
||||
if (print_symoffset) {
|
||||
node_al.addr = addr;
|
||||
node_al.map = node->map;
|
||||
printed += symbol__fprintf_symname_offs(node->sym, &node_al, fp);
|
||||
} else
|
||||
printed += symbol__fprintf_symname(node->sym, fp);
|
||||
printed += __symbol__fprintf_symname_offs(node->sym, &node_al,
|
||||
print_unknown_as_addr, fp);
|
||||
} else {
|
||||
printed += __symbol__fprintf_symname(node->sym, &node_al,
|
||||
print_unknown_as_addr, fp);
|
||||
}
|
||||
}
|
||||
|
||||
if (print_dso) {
|
||||
|
@ -2043,6 +2048,7 @@ int perf_evsel__fprintf_sym(struct perf_evsel *evsel, struct perf_sample *sample
|
|||
int print_dso = print_opts & PRINT_IP_OPT_DSO;
|
||||
int print_symoffset = print_opts & PRINT_IP_OPT_SYMOFFSET;
|
||||
int print_srcline = print_opts & PRINT_IP_OPT_SRCLINE;
|
||||
int print_unknown_as_addr = print_opts & PRINT_IP_OPT_UNKNOWN_AS_ADDR;
|
||||
|
||||
if (symbol_conf.use_callchain && sample->callchain) {
|
||||
printed += perf_evsel__fprintf_callchain(evsel, sample, al, left_alignment,
|
||||
|
@ -2055,10 +2061,13 @@ int perf_evsel__fprintf_sym(struct perf_evsel *evsel, struct perf_sample *sample
|
|||
|
||||
if (print_sym) {
|
||||
printed += fprintf(fp, " ");
|
||||
if (print_symoffset)
|
||||
printed += symbol__fprintf_symname_offs(al->sym, al, fp);
|
||||
else
|
||||
printed += symbol__fprintf_symname(al->sym, fp);
|
||||
if (print_symoffset) {
|
||||
printed += __symbol__fprintf_symname_offs(al->sym, al,
|
||||
print_unknown_as_addr, fp);
|
||||
} else {
|
||||
printed += __symbol__fprintf_symname(al->sym, al,
|
||||
print_unknown_as_addr, fp);
|
||||
}
|
||||
}
|
||||
|
||||
if (print_dso) {
|
||||
|
|
|
@ -42,6 +42,7 @@ struct perf_session {
|
|||
#define PRINT_IP_OPT_SYMOFFSET (1<<3)
|
||||
#define PRINT_IP_OPT_ONELINE (1<<4)
|
||||
#define PRINT_IP_OPT_SRCLINE (1<<5)
|
||||
#define PRINT_IP_OPT_UNKNOWN_AS_ADDR (1<<6)
|
||||
|
||||
struct perf_tool;
|
||||
|
||||
|
|
|
@ -264,8 +264,9 @@ size_t symbol__fprintf(struct symbol *sym, FILE *fp)
|
|||
sym->name);
|
||||
}
|
||||
|
||||
size_t symbol__fprintf_symname_offs(const struct symbol *sym,
|
||||
const struct addr_location *al, FILE *fp)
|
||||
size_t __symbol__fprintf_symname_offs(const struct symbol *sym,
|
||||
const struct addr_location *al,
|
||||
bool unknown_as_addr, FILE *fp)
|
||||
{
|
||||
unsigned long offset;
|
||||
size_t length;
|
||||
|
@ -280,13 +281,29 @@ size_t symbol__fprintf_symname_offs(const struct symbol *sym,
|
|||
length += fprintf(fp, "+0x%lx", offset);
|
||||
}
|
||||
return length;
|
||||
} else
|
||||
} else if (al && unknown_as_addr)
|
||||
return fprintf(fp, "[%#" PRIx64 "]", al->addr);
|
||||
else
|
||||
return fprintf(fp, "[unknown]");
|
||||
}
|
||||
|
||||
size_t symbol__fprintf_symname_offs(const struct symbol *sym,
|
||||
const struct addr_location *al,
|
||||
FILE *fp)
|
||||
{
|
||||
return __symbol__fprintf_symname_offs(sym, al, false, fp);
|
||||
}
|
||||
|
||||
size_t __symbol__fprintf_symname(const struct symbol *sym,
|
||||
const struct addr_location *al,
|
||||
bool unknown_as_addr, FILE *fp)
|
||||
{
|
||||
return __symbol__fprintf_symname_offs(sym, al, unknown_as_addr, fp);
|
||||
}
|
||||
|
||||
size_t symbol__fprintf_symname(const struct symbol *sym, FILE *fp)
|
||||
{
|
||||
return symbol__fprintf_symname_offs(sym, NULL, fp);
|
||||
return __symbol__fprintf_symname_offs(sym, NULL, false, fp);
|
||||
}
|
||||
|
||||
void symbols__delete(struct rb_root *symbols)
|
||||
|
|
|
@ -262,8 +262,14 @@ int symbol__init(struct perf_env *env);
|
|||
void symbol__exit(void);
|
||||
void symbol__elf_init(void);
|
||||
struct symbol *symbol__new(u64 start, u64 len, u8 binding, const char *name);
|
||||
size_t __symbol__fprintf_symname_offs(const struct symbol *sym,
|
||||
const struct addr_location *al,
|
||||
bool unknown_as_addr, FILE *fp);
|
||||
size_t symbol__fprintf_symname_offs(const struct symbol *sym,
|
||||
const struct addr_location *al, FILE *fp);
|
||||
size_t __symbol__fprintf_symname(const struct symbol *sym,
|
||||
const struct addr_location *al,
|
||||
bool unknown_as_addr, FILE *fp);
|
||||
size_t symbol__fprintf_symname(const struct symbol *sym, FILE *fp);
|
||||
size_t symbol__fprintf(struct symbol *sym, FILE *fp);
|
||||
bool symbol_type__is_a(char symbol_type, enum map_type map_type);
|
||||
|
|
Loading…
Reference in New Issue
Block a user