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Namhyung Kim f787d9519f perf tools: Fix strbuf_addf() when the buffer needs to grow 
This was found during chasing down the header output regression.  The
strbuf_addf() was checking buffer length with a result of vscnprintf()
which cannot be greater than that of strbuf_avail().

Since numa topology and pmu mapping info in header were converted to use
strbuf, it sometimes caused uninteresting behaviors with the broken
strbuf.

Fix it by using vsnprintf() which returns desired output string length
regardless of the available buffer size and grow the buffer if needed.

Reported-by: Andrew Jones <drjones@redhat.com>
Tested-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Andrew Jones <drjones@redhat.com>
Link: http://lkml.kernel.org/r/1350999890-6920-2-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 		2012-10-30 10:32:56 -02:00
..
Documentation perf trace: New tool 2012-09-26 20:42:23 -03:00
arch perf tools: Support for DWARF CFI unwinding on post processing 2012-08-11 15:06:56 -03:00
bench perf tools: Use __maybe_used for unused variables 2012-09-11 12:19:15 -03:00
config perf tools: Check libaudit availability for perf-trace builtin 2012-09-27 10:56:40 -03:00
python perf python: Use attr.watermark in twatch.py 2012-01-30 18:38:23 -02:00
scripts perf scripts: Add event_analyzing_sample-record/report 2012-09-17 13:11:15 -03:00
ui perf hists browser: Add back callchain folding symbol 2012-10-17 13:54:08 -03:00
util perf tools: Fix strbuf_addf() when the buffer needs to grow 2012-10-30 10:32:56 -02:00
.gitignore perf tools: Ignore compiled python binaries 2012-09-07 12:10:58 -03:00
CREDITS perf_counter tools: Add CREDITS file for Git contributors 2009-06-24 19:54:29 +02:00
MANIFEST perf kvm: Events analysis tool 2012-09-21 12:51:22 -03:00
Makefile perf python: Properly link with libtraceevent 2012-10-20 02:43:08 +02:00
bash_completion perf tools: Complete tracepoint event names 2012-10-04 12:44:52 -03:00
builtin-annotate.c perf tools: Use __maybe_used for unused variables 2012-09-11 12:19:15 -03:00
builtin-bench.c perf tools: Use __maybe_used for unused variables 2012-09-11 12:19:15 -03:00
builtin-buildid-cache.c perf buildid-cache: Don't use globals where not needed to 2012-10-02 18:36:35 -03:00
builtin-buildid-list.c perf buildid-list: Don't use globals where not needed to 2012-10-02 18:36:36 -03:00
builtin-diff.c perf tool: Add hpp interface to enable/disable hpp column 2012-10-04 13:30:27 -03:00
builtin-evlist.c perf evlist: Don't use globals where not needed to 2012-10-02 18:36:39 -03:00
builtin-help.c perf help: Fix --help for builtins 2012-10-22 12:35:49 -02:00
builtin-inject.c perf inject: Don't use globals where not needed to 2012-10-02 18:36:41 -03:00
builtin-kmem.c perf kmem: Don't use globals where not needed to 2012-10-02 18:36:32 -03:00
builtin-kvm.c perf kvm: Move global variables into a perf_kvm struct 2012-10-03 11:10:17 -03:00
builtin-list.c perf tools: Use __maybe_used for unused variables 2012-09-11 12:19:15 -03:00
builtin-lock.c perf lock: Don't use globals where not needed to 2012-10-02 18:36:33 -03:00
builtin-probe.c perf probe: Don't use globals where not needed to 2012-10-02 18:36:37 -03:00
builtin-record.c perf record: Don't use globals where not needed to 2012-10-02 18:36:40 -03:00
builtin-report.c perf tool: Add hpp interface to enable/disable hpp column 2012-10-04 13:30:27 -03:00
builtin-sched.c perf sched: Look up thread using tid instead of pid 2012-10-02 18:36:28 -03:00
builtin-script.c perf script: Don't use globals where not needed to 2012-10-02 18:36:30 -03:00
builtin-stat.c perf stat: Don't use globals where not needed to 2012-10-02 18:36:29 -03:00
builtin-test.c perf test: Add test to check we correctly parse and match syscall open parms 2012-09-26 13:42:01 -03:00
builtin-timechart.c perf timechart: Don't use globals where not needed to 2012-10-02 18:36:34 -03:00
builtin-top.c perf tools: Removing hists pair argument from output path 2012-10-04 13:29:45 -03:00
builtin-trace.c perf trace: Check if sample raw_data field is set 2012-10-21 23:07:36 -02:00
builtin.h perf trace: New tool 2012-09-26 20:42:23 -03:00
command-list.txt perf trace: New tool 2012-09-26 20:42:23 -03:00
design.txt perf tools: Update ioctl documentation for PERF_IOC_FLAG_GROUP 2012-05-31 11:38:42 -03:00
perf-archive.sh perf archive: Make 'f' the last parameter for tar 2012-09-17 13:10:42 -03:00
perf.c perf tools: Convert to LIBAUDIT_SUPPORT 2012-10-02 18:36:21 -03:00
perf.h perf/urgent fixes: 2012-10-20 02:40:26 +02:00