diff options
| author | Alex Bennée | 2014-08-01 18:08:57 +0200 |
|---|---|---|
| committer | Stefan Hajnoczi | 2014-08-12 15:26:12 +0200 |
| commit | 6db8b538663b39c21e12e14e6437aa7f8435f316 (patch) | |
| tree | f18ecd38a421852c997b643bd8b56b720a263f7b /trace-events | |
| parent | trace: teach lttng backend to use format strings (diff) | |
| download | qemu-6db8b538663b39c21e12e14e6437aa7f8435f316.tar.gz qemu-6db8b538663b39c21e12e14e6437aa7f8435f316.tar.xz qemu-6db8b538663b39c21e12e14e6437aa7f8435f316.zip | |
trace: add some tcg tracing support
This adds a couple of tcg specific trace-events which are useful for
tracing execution though tcg generated blocks. It's been tested with
lttng user space tracing but is generic enough for all systems. The tcg
events are:
* translate_block - when a subject block is translated
* exec_tb - when a translated block is entered
* exec_tb_exit - when we exit the translated code
* exec_tb_nocache - special case translations
Of course we can only trace the entrance to the first block of a chain
as each block will jump directly to the next when it can. See the -d
nochain patch to allow more complete tracing at the expense of
performance.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Diffstat (limited to 'trace-events')
| -rw-r--r-- | trace-events | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/trace-events b/trace-events index 11a17a8a40..dcc33dd750 100644 --- a/trace-events +++ b/trace-events @@ -1265,6 +1265,15 @@ kvm_failed_spr_get(int str, const char *msg) "Warning: Unable to retrieve SPR %d kvm_failed_reg_get(uint64_t id, const char *msg) "Warning: Unable to retrieve ONEREG %" PRIu64 " from KVM: %s" kvm_failed_reg_set(uint64_t id, const char *msg) "Warning: Unable to set ONEREG %" PRIu64 " to KVM: %s" +# TCG related tracing (mostly disabled by default) +# cpu-exec.c +disable exec_tb(void *tb, uintptr_t pc) "tb:%p pc=0x%"PRIxPTR +disable exec_tb_nocache(void *tb, uintptr_t pc) "tb:%p pc=0x%"PRIxPTR +disable exec_tb_exit(void *next_tb, unsigned int flags) "tb:%p flags=%x" + +# translate-all.c +translate_block(void *tb, uintptr_t pc, uint8_t *tb_code) "tb:%p, pc:0x%"PRIxPTR", tb_code:%p" + # memory.c memory_region_ops_read(void *mr, uint64_t addr, uint64_t value, unsigned size) "mr %p addr %#"PRIx64" value %#"PRIx64" size %u" memory_region_ops_write(void *mr, uint64_t addr, uint64_t value, unsigned size) "mr %p addr %#"PRIx64" value %#"PRIx64" size %u" |