From bd05954bfa17f03a7bd4454178ba09786b35e383 Mon Sep 17 00:00:00 2001 From: Yunlong Song Date: Thu, 2 Apr 2015 21:47:19 +0800 Subject: [PATCH] perf data: Support using -f to override perf.data file ownership for 'convert' Enable perf data convert to use perf.data when it is not owned by current user or root. Example: # perf record ls # chown Yunlong.Song:Yunlong.Song perf.data # ls -al perf.data -rw------- 1 Yunlong.Song Yunlong.Song 28260 Apr 2 17:35 perf.data # id uid=0(root) gid=0(root) groups=0(root),64(pkcs11) Before this patch: # perf data convert --to-ctf=./ctf-data/ File perf.data not owned by current user or root (use -f to override) # perf data convert --to-ctf=./ctf-data/ -f Error: unknown switch `f' usage: perf data convert [] -v, --verbose be more verbose -i, --input input file name --to-ctf ... Convert to CTF format After this patch: # perf data convert --to-ctf=./ctf-data/ File perf.data not owned by current user or root (use -f to override) # perf data convert --to-ctf=./ctf-data/ -f # ls ctf-data/ metadata perf_stream_0 As shown above, the -f option really works now. Signed-off-by: Yunlong Song Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Wang Nan Link: http://lkml.kernel.org/r/1427982439-27388-11-git-send-email-yunlong.song@huawei.com Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/builtin-data.c | 4 +++- tools/perf/util/data-convert-bt.c | 3 ++- tools/perf/util/data-convert-bt.h | 2 +- 3 files changed, 6 insertions(+), 3 deletions(-) diff --git a/tools/perf/builtin-data.c b/tools/perf/builtin-data.c index 709152a7b408..d6525bc54d13 100644 --- a/tools/perf/builtin-data.c +++ b/tools/perf/builtin-data.c @@ -53,12 +53,14 @@ static int cmd_data_convert(int argc, const char **argv, const char *prefix __maybe_unused) { const char *to_ctf = NULL; + bool force = false; const struct option options[] = { OPT_INCR('v', "verbose", &verbose, "be more verbose"), OPT_STRING('i', "input", &input_name, "file", "input file name"), #ifdef HAVE_LIBBABELTRACE_SUPPORT OPT_STRING(0, "to-ctf", &to_ctf, NULL, "Convert to CTF format"), #endif + OPT_BOOLEAN('f', "force", &force, "don't complain, do it"), OPT_END() }; @@ -76,7 +78,7 @@ static int cmd_data_convert(int argc, const char **argv, if (to_ctf) { #ifdef HAVE_LIBBABELTRACE_SUPPORT - return bt_convert__perf2ctf(input_name, to_ctf); + return bt_convert__perf2ctf(input_name, to_ctf, force); #else pr_err("The libbabeltrace support is not compiled in.\n"); return -1; diff --git a/tools/perf/util/data-convert-bt.c b/tools/perf/util/data-convert-bt.c index c6d62268cc2a..dd17c9a32fbc 100644 --- a/tools/perf/util/data-convert-bt.c +++ b/tools/perf/util/data-convert-bt.c @@ -791,12 +791,13 @@ err: return -1; } -int bt_convert__perf2ctf(const char *input, const char *path) +int bt_convert__perf2ctf(const char *input, const char *path, bool force) { struct perf_session *session; struct perf_data_file file = { .path = input, .mode = PERF_DATA_MODE_READ, + .force = force, }; struct convert c = { .tool = { diff --git a/tools/perf/util/data-convert-bt.h b/tools/perf/util/data-convert-bt.h index dda30c5d0792..4c204342a9d8 100644 --- a/tools/perf/util/data-convert-bt.h +++ b/tools/perf/util/data-convert-bt.h @@ -2,7 +2,7 @@ #define __DATA_CONVERT_BT_H #ifdef HAVE_LIBBABELTRACE_SUPPORT -int bt_convert__perf2ctf(const char *input_name, const char *to_ctf); +int bt_convert__perf2ctf(const char *input_name, const char *to_ctf, bool force); #endif /* HAVE_LIBBABELTRACE_SUPPORT */ #endif /* __DATA_CONVERT_BT_H */ -- 2.39.5