linux/tools
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 This error message seems to be outdated and is not very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
..
cgroup
firewire
hv Drivers: hv: Implement the file copy service 2014-02-18 10:53:48 -08:00
include perf tools: Move hash.h header 2014-02-18 09:34:49 -03:00
lguest tools/lguest: offer VIRTIO_F_ANY_LAYOUT for net device. 2013-07-15 11:18:32 +09:30
lib Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2014-04-16 16:38:57 -07:00
net Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2014-03-14 22:31:55 -04:00
nfsd
perf perf tools: Improve error reporting 2014-04-20 00:15:12 +02:00
power tools/power turbostat: Run on Broadwell 2014-03-05 22:20:02 -05:00
scripts tools lib traceevent: Add global QUIET_CC_FPIC build output 2013-12-19 16:18:10 -03:00
testing This just contains a single update by Satoru Takeuchi, which adds 2014-04-04 21:27:43 -07:00
thermal/tmon tools/thermal: Introduce tmon, a tool for thermal subsystem 2013-11-07 08:45:34 +08:00
usb usb: tools: fix a regression issue that gcc can't link to pthread 2013-12-04 15:10:54 -08:00
virtio tools/virtio: add a missing ) 2014-03-13 11:23:25 +10:30
vm tools/vm/page-types.c: page-cache sniffing feature 2014-04-07 16:35:52 -07:00
Makefile Adding makefile for tools/hv 2014-02-15 11:52:35 -08:00