linux/tools/perf
Adrien BAK ffa91880a9 perf tools: Improve error reporting
In the current version, when using perf record, if something goes
wrong in tools/perf/builtin-record.c:375
  session = perf_session__new(file, false, NULL);

The error message:
"Not enough memory for reading per file header"

is issued. This error message seems to be outdated and is not very
helpful. This patch proposes to replace this error message by
"Perf session creation failed"

I believe this issue has been brought to lkml:
https://lkml.org/lkml/2014/2/24/458
although this patch only tackles a (small) part of the issue.

Additionnaly, this patch improves error reporting in
tools/perf/util/data.c open_file_write.

Currently, if the call to open fails, the user is unaware of it.
This patch logs the error, before returning the error code to
the caller.

Reported-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Adrien BAK <adrien.bak@metascale.org>
Link: http://lkml.kernel.org/r/1397786443.3093.4.camel@beast
[ Reorganize the changelog into paragraphs ]
[ Added empty line after fd declaration in open_file_write ]
Signed-off-by: Jiri Olsa <jolsa@redhat.com>
2014-04-20 00:15:12 +02:00
..
arch perf tools: Setup default dwarf post unwinder 2014-02-24 09:29:36 -03:00
bench Merge branch 'perf-core-for-mingo' into perf/urgent 2014-04-14 16:45:39 +02:00
config Merge branch 'perf-core-for-mingo' into perf/urgent 2014-04-14 16:45:39 +02:00
Documentation perf bench: Update manpage to mention numa and futex 2014-04-14 12:55:41 +02:00
python perf python: Remove duplicate TID bit from mask 2013-08-07 17:35:25 -03:00
scripts perf tools: Finish the removal of 'self' arguments 2013-11-05 15:32:36 -03:00
tests perf tools: Fix double free in perf test 21 (code-reading.c) 2014-04-15 13:57:14 +02:00
ui perf ui hists: Pass evsel to hpp->header/width functions explicitly 2014-03-14 18:08:40 -03:00
util perf tools: Improve error reporting 2014-04-20 00:15:12 +02:00
.gitignore perf tools: Ignore 'perf timechart' output file 2013-10-11 12:17:37 -03:00
builtin-annotate.c perf evlist: Introduce evlist__for_each() & friends 2014-01-13 10:06:25 -03:00
builtin-bench.c perf bench: Fix segfault at the end of an 'all' execution 2014-04-14 12:55:53 +02:00
builtin-buildid-cache.c perf buildid-cache: Check relocation when checking for existing kcore 2014-01-31 17:21:54 -03:00
builtin-buildid-list.c perf session: Separating data file properties from session 2013-10-21 17:33:25 -03:00
builtin-diff.c perf ui hists: Pass evsel to hpp->header/width functions explicitly 2014-03-14 18:08:40 -03:00
builtin-evlist.c perf evlist: Introduce evlist__for_each() & friends 2014-01-13 10:06:25 -03:00
builtin-help.c perf help: Fix --help for builtins 2012-10-22 12:35:49 -02:00
builtin-inject.c perf callchain: Add mask into struct regs_dump 2014-02-18 09:34:48 -03:00
builtin-kmem.c perf evsel: Ditch evsel->handler.data field 2013-11-07 10:40:47 -03:00
builtin-kvm.c perf kvm: Fix 'Min time' counting in report command 2014-04-20 00:14:08 +02:00
builtin-list.c perf list: Add usage 2013-11-05 14:26:41 -03:00
builtin-lock.c perf evsel: Ditch evsel->handler.data field 2013-11-07 10:40:47 -03:00
builtin-mem.c perf mem: Remove unused parameter from dump_raw_samples() 2013-12-19 17:03:39 -03:00
builtin-probe.c perf probe: Replace line_list with intlist 2014-02-18 09:34:50 -03:00
builtin-record.c perf tools: Improve error reporting 2014-04-20 00:15:12 +02:00
builtin-report.c perf report: Use ui__has_annotation() 2014-03-18 18:17:02 -03:00
builtin-sched.c perf sched: Fixup header alignment in 'latency' output 2014-03-18 18:16:55 -03:00
builtin-script.c perf evlist: Introduce evlist__for_each() & friends 2014-01-13 10:06:25 -03:00
builtin-stat.c perf stat: Initialize statistics correctly 2014-04-14 12:56:06 +02:00
builtin-timechart.c perf symbols: Record the reason for filtering an address_location 2014-03-18 18:16:57 -03:00
builtin-top.c Merge branch 'perf/urgent' into perf/core 2014-03-11 11:53:50 +01:00
builtin-trace.c perf trace: Decode architecture-specific signal numbers 2014-03-10 11:10:45 -03:00
builtin.h perf tools: Add new mem command for memory access profiling 2013-04-01 12:21:44 -03:00
command-list.txt perf tools: Add new mem command for memory access profiling 2013-04-01 12:21:44 -03:00
CREDITS perf_counter tools: Add CREDITS file for Git contributors 2009-06-24 19:54:29 +02:00
design.txt perf tools: Update some code references in design.txt 2014-03-18 18:17:06 -03:00
Makefile perf tools: Add 'build-test' make target 2014-01-16 16:26:26 -03:00
Makefile.perf perf tools: Instead of redirecting flex output, use -o 2014-04-15 13:57:21 +02:00
MANIFEST perf tools: Move hash.h header 2014-02-18 09:34:49 -03:00
perf-archive.sh perf archive: Make 'f' the last parameter for tar 2012-09-17 13:10:42 -03:00
perf-completion.sh perf kvm: introduce --list-cmds for use by scripts 2014-03-14 18:08:41 -03:00
perf.c tools/: Convert to new topic libraries 2013-12-16 16:03:27 -03:00
perf.h Merge git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile 2014-04-06 08:11:57 -07:00