# perf test -v python
16: Try 'import perf' in python, checking link problems :
--- start ---
test child forked, pid 672
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ImportError: /tmp/build/perf/python/perf.so: undefined symbol:
symbol_conf
test child finished with -1
---- end ----
Try 'import perf' in python, checking link problems: FAILED!
#
To fix it just pass a parameter to perf_evsel__fprintf_sym telling if
callchains should be printed.
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-comrsr20bsnr8bg0n6rfwv12@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
}
}
perf_evsel__fprintf_sym(evsel, sample, al, 0, print_opts,
+ symbol_conf.use_callchain,
scripting_max_stack, stdout);
}
perf_evsel__fprintf_sym(evsel, sample, al, 0,
output[attr->type].print_ip_opts,
+ symbol_conf.use_callchain,
scripting_max_stack, stdout);
}
int perf_evsel__fprintf_sym(struct perf_evsel *evsel, struct perf_sample *sample,
struct addr_location *al, int left_alignment,
- unsigned int print_opts, unsigned int stack_depth,
- FILE *fp)
+ unsigned int print_opts, bool print_callchain,
+ unsigned int stack_depth, FILE *fp)
{
int printed = 0;
int print_ip = print_opts & EVSEL__PRINT_IP;
int print_srcline = print_opts & EVSEL__PRINT_SRCLINE;
int print_unknown_as_addr = print_opts & EVSEL__PRINT_UNKNOWN_AS_ADDR;
- if (symbol_conf.use_callchain && sample->callchain) {
+ if (print_callchain && sample->callchain) {
printed += perf_evsel__fprintf_callchain(evsel, sample, al, left_alignment,
print_opts, stack_depth, fp);
} else if (!(al->sym && al->sym->ignore)) {
int perf_evsel__fprintf_sym(struct perf_evsel *evsel, struct perf_sample *sample,
struct addr_location *al, int left_alignment,
- unsigned int print_opts, unsigned int stack_depth,
- FILE *fp);
+ unsigned int print_opts, bool print_callchain,
+ unsigned int stack_depth, FILE *fp);
bool perf_evsel__fallback(struct perf_evsel *evsel, int err,
char *msg, size_t msgsize);