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772f1b3721
qemu-e2k/scripts
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Daniel P. Berrangé 772f1b3721 trace: forbid use of %m in trace event format strings 
The '%m' format instructs glibc's printf()/syslog() implementation to
insert the contents of strerror(errno). Since this is a glibc extension
it should generally be avoided in QEMU due to need for portability to a
variety of platforms.

Even though vfio is Linux-only code that could otherwise use "%m", it
must still be avoided in trace-events files because several of the
backends do not use the format string and so this error information is
invisible to them.

The errno string value should be given as an explicit trace argument
instead, making it accessible to all backends. This also allows it to
work correctly with future patches that use the format string with
systemtap's simple printf code.

Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Message-id: 20190123120016.4538-4-berrange@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2019-01-24 14:16:56 +00:00
..
coccinelle qemu-iotests: convert pwd and $(pwd) to $PWD 2018-11-19 10:08:19 -06:00
kvm python: futurize -f libfuturize.fixes.fix_print_with_import 2018-06-08 14:39:24 -03:00
modules
qapi qapi: fix flat union on uncovered branches conditionals 2018-12-18 07:57:36 +01:00
qemu-guest-agent qemu-guest-agent: freeze-hook to ignore dpkg files as well 2018-08-23 18:46:25 +02:00
qemugdb scripts/qemu-gdb/timers.py: define encoding in header comment 2018-02-05 13:54:39 +01:00
qmp qmp-shell: learn to send commands with quoted arguments 2018-08-15 07:24:22 +02:00
tracetool trace: forbid use of %m in trace event format strings 2019-01-24 14:16:56 +00:00
travis travis: add gcovr summary for GCOV build 2018-07-05 15:59:41 +01:00
analyse-9p-simpletrace.py python: futurize -f libfuturize.fixes.fix_print_with_import 2018-06-08 14:39:24 -03:00
analyse-locks-simpletrace.py scripts: Remove unused python imports 2019-01-17 17:52:40 -02:00
analyze-inclusions
analyze-migration.py scripts: Remove unused python imports 2019-01-17 17:52:40 -02:00
archive-source.sh archive-source.sh: Modern shell scripting (use $() instead of ``) 2018-10-16 18:34:19 +02:00
checkpatch.pl checkpatch: warn about qemu/queue.h head structs that are not typedef-ed 2019-01-11 15:46:55 +01:00
clean-header-guards.pl
clean-includes
cleanup-trace-events.pl
cocci-macro-file.h qemu/queue.h: reimplement QTAILQ without pointer-to-pointers 2019-01-11 15:46:55 +01:00
coverity-model.c coverity-model: Fix replay_get_byte() 2018-07-05 15:09:52 +02:00
create_config Revert "Makefile: Rename TARGET_DIRS to TARGET_LIST" 2018-07-05 15:59:41 +01:00
decodetree.py Updates to decodetree.py for risc-v. 2018-11-01 18:28:29 +00:00
device-crash-test Python queue, 2019-01-17 2019-01-18 15:56:41 +00:00
disas-objdump.pl
dump-guest-memory.py scripts/dump-guest-memory: Synchronize with guest_phys_blocks_region_add 2018-11-06 21:35:05 +01:00
extract-vsssdk-headers
feature_to_c.sh
fix-multiline-comments.sh scripts: add script to convert multiline comments into 4-line format 2019-01-11 15:46:55 +01:00
get_maintainer.pl get_maintainer: use 'https://' instead of 'git://' 2018-11-12 11:26:02 +00:00
git-submodule.sh git-submodule.sh: Modern shell scripting (use $() instead of ``) 2018-10-16 18:34:19 +02:00
git.orderfile
hxtool qemu-options: Remove stray colons from output of --help 2017-12-20 09:04:27 +01:00
make_device_config.sh
make-release make-release: add skiboot .version file 2018-11-15 13:03:57 +00:00
qapi-gen.py qapi: Lift error reporting from QAPISchema.__init__() to callers 2018-03-02 13:14:09 -06:00
qemu-binfmt-conf.sh qemu-binfmt-conf.sh: add x86_64 target 2018-08-17 13:56:33 +02:00
qemu-gdb.py scripts/qemu-gdb/timers.py: new helper to dump timer state 2018-01-16 14:54:51 +01:00
qemu.py qemu.py: Fix error message when qemu dies from signal 2019-01-17 17:52:40 -02:00
qtest.py iotests: Use Python byte strings where appropriate 2018-10-30 21:11:52 -03:00
refresh-pxe-roms.sh
replay-dump.py scripts/replay-dump.py: fix utf-8 mangling 2019-01-17 17:52:40 -02:00
shaderinclude.pl
show-fixed-bugs.sh show-fixed-bugs.sh: Modern shell scripting (use $() instead of ``) 2018-10-16 18:34:19 +02:00
signrom.py python: futurize -f libfuturize.fixes.fix_print_with_import 2018-06-08 14:39:24 -03:00
simpletrace.py scripts: Remove unused python imports 2019-01-17 17:52:40 -02:00
switch-timer-api
tap-driver.pl test: replace gtester with a TAP driver 2019-01-11 15:46:52 +01:00
tap-merge.pl test: replace gtester with a TAP driver 2019-01-11 15:46:52 +01:00
texi2pod.pl maint: Allow for EXAMPLES in texi2pod 2019-01-21 15:49:51 -06:00
tracetool.py scripts: Remove unused python imports 2019-01-17 17:52:40 -02:00
update-linux-headers.sh update-linux-headers.sh: add qemu_fw_cfg.h 2018-08-23 18:46:25 +02:00
vmstate-static-checker.py python: futurize -f libfuturize.fixes.fix_next_call 2018-06-08 14:39:24 -03:00