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[Qemu-devel] [PATCH v2 00/11] simplify usage of tracepoints, and connect
From: |
Denis V. Lunev |
Subject: |
[Qemu-devel] [PATCH v2 00/11] simplify usage of tracepoints, and connect them to logging |
Date: |
Mon, 26 Oct 2015 12:10:17 +0300 |
This series does three things:
1) add a "-trace [enable=]foo" option to enable one or more trace
events, and a "-trace help" option to show the list of tracepoints
(patches 4-5)
2) change the stderr tracing backend so that it prints to the
-D log file, and enable it by default. "-trace file=..." is
now a synonym of -D if the log backend is enabled (patches 7-8)
3) add a "-d trace:foo" option that is a synonym for "-trace foo";
this makes the new functionality more discoverable to people used
to "-d", makes it available for user-mode emulation (which does
not have -trace), and is somewhat nice if you want to enable both
tracepoints and some other "-d" flag (patch 9). When globbing
it is also less susceptible to unwanted shell expansion.
For example, you can trace block device I/O and save the result
to a file just by adding "-trace bdrv_aio_*,file=trace.txt", or
correlate it to guest PCs with "-d exec,nochain,trace:bdrv_aio_*".
Opinions? I would like to have this in 2.5 if there is agreement.
Signed-off-by: Paolo Bonzini <address@hidden>
Signed-off-by: Denis V. Lunev <address@hidden>
Changes from v1:
- small cleanup to vl.c is added as patch (4)
- compilation is fixed in patch (2)
- moved qemu-log.c to util/log.c to fix linking of qemu-io/qemu-nbd
Denis V. Lunev (2):
trace: no need to call trace_backend_init in different branches now
log: move qemu-log.c into util/ directory
Paolo Bonzini (9):
trace: fix documentation
trace: split trace_init_events out of trace_init_backends
trace: split trace_init_file out of trace_init_backends
trace: add "-trace enable=..."
trace: add "-trace help"
log: do not unnecessarily include qom/cpu.h
trace: convert stderr backend to log
trace: switch default backend to "log"
log: add "-d trace:PATTERN"
Makefile.objs | 1 -
bsd-user/main.c | 1 +
configure | 6 +-
cpu-exec.c | 1 +
exec.c | 1 +
hw/acpi/cpu_hotplug.c | 1 +
hw/timer/a9gtimer.c | 1 +
include/exec/log.h | 60 ++++++++++++++++
include/qemu/log.h | 60 +---------------
linux-user/main.c | 1 +
qemu-io.c | 2 +-
qemu-options.hx | 22 ++++--
qom/cpu.c | 1 +
scripts/tracetool/backend/{stderr.py => log.py} | 9 +--
target-alpha/translate.c | 1 +
target-arm/translate.c | 1 +
target-cris/translate.c | 1 +
target-i386/seg_helper.c | 1 +
target-i386/smm_helper.c | 1 +
target-i386/translate.c | 1 +
target-lm32/helper.c | 1 +
target-lm32/translate.c | 1 +
target-m68k/translate.c | 1 +
target-microblaze/helper.c | 1 +
target-microblaze/translate.c | 1 +
target-mips/helper.c | 1 +
target-mips/translate.c | 1 +
target-moxie/translate.c | 1 +
target-openrisc/translate.c | 1 +
target-ppc/mmu-hash32.c | 1 +
target-ppc/mmu-hash64.c | 1 +
target-ppc/mmu_helper.c | 1 +
target-ppc/translate.c | 1 +
target-s390x/translate.c | 1 +
target-sh4/helper.c | 1 +
target-sh4/translate.c | 1 +
target-sparc/int32_helper.c | 1 +
target-sparc/int64_helper.c | 1 +
target-sparc/translate.c | 1 +
target-tilegx/translate.c | 1 +
target-tricore/translate.c | 1 +
target-unicore32/translate.c | 1 +
target-xtensa/translate.c | 1 +
tcg/tcg.c | 1 +
trace/control.c | 95 ++++++++++++++++++-------
trace/control.h | 42 ++++++++++-
trace/simple.c | 6 +-
trace/simple.h | 4 +-
translate-all.c | 1 +
util/Makefile.objs | 1 +
qemu-log.c => util/log.c | 19 ++++-
vl.c | 38 +++++-----
52 files changed, 274 insertions(+), 129 deletions(-)
create mode 100644 include/exec/log.h
rename scripts/tracetool/backend/{stderr.py => log.py} (78%)
rename qemu-log.c => util/log.c (90%)
--
2.1.4
- [Qemu-devel] [PATCH v2 00/11] simplify usage of tracepoints, and connect them to logging,
Denis V. Lunev <=
- [Qemu-devel] [PATCH 02/11] trace: split trace_init_events out of trace_init_backends, Denis V. Lunev, 2015/10/26
- [Qemu-devel] [PATCH 05/11] trace: add "-trace enable=...", Denis V. Lunev, 2015/10/26
- [Qemu-devel] [PATCH 03/11] trace: split trace_init_file out of trace_init_backends, Denis V. Lunev, 2015/10/26
- [Qemu-devel] [PATCH 04/11] trace: no need to call trace_backend_init in different branches now, Denis V. Lunev, 2015/10/26
- [Qemu-devel] [PATCH 01/11] trace: fix documentation, Denis V. Lunev, 2015/10/26