' 00000000004004b0

: 4004b0: 55 push %rbp 4004b1: 48 89 e5 mov %rsp,%rbp 4004b4: 89 7d ec mov %edi,-0x14(%rbp) 4004b7: 48 89 75 e0 mov %rsi,-0x20(%rbp) 4004bb: 48 c7 45 f8 34 12 00 movq $0x1234,-0x8(%rbp) 4004c2: 00 4004c3: b8 7f 00 00 00 mov $0x7f,%eax 4004c8: 5d pop %rbp 4004c9: c3 retq # nm foo | grep -e glob$ -e str -e foo 00000000006008bc D foo 00000000006008a8 D glob 00000000006008ac D str # perf probe -x /home/namhyung/tmp/foo -a 'foo=main+0x13 glob=@0x6008a8:s32 \ > str=@+0x2008ac:string bit=@+0x2008bc:b10@2/32 argc=%di:s32 local=-0x8(%bp)' Added new event: probe_foo:foo (on 0x4c3 with glob=@0x6008a8:s32 str=@+0x2008ac:string bit=@+0x2008bc:b10@2/32 argc=%di:s32 local=-0x8(%bp)) You can now use it in all perf tools, such as: perf record -e probe_foo:foo -aR sleep 1 # perf record -e probe_foo:foo ./foo [ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 0.001 MB perf.data (~33 samples) ] # perf script | grep -v ^# foo 2008 [002 2199.867154: probe_foo:foo (4004c3) glob=-1 str="hello uprobe." bit=0x5 argc=1 local=0x1234 This patchset is based on the current for-next branch of the Steven Rostedt's linux-trace tree. I also put this on my 'uprobe/fetch-v8' branch in my tree: git://git.kernel.org/pub/scm/linux/kernel/git/namhyung/linux-perf.git Any comments are welcome, thanks. Namhyung Cc: Masami Hiramatsu Cc: Srikar Dronamraju Cc: Oleg Nesterov Cc: zhangwei(Jovi) Cc: Arnaldo Carvalho de Melo Cc: Hemant Kumar Hyeoncheol Lee (1): tracing/probes: Add fetch{,_size} member into deref fetch method Namhyung Kim (15): tracing/uprobes: Fix documentation of uprobe registration syntax tracing/probes: Fix basic print type functions tracing/kprobes: Factor out struct trace_probe tracing/uprobes: Convert to struct trace_probe tracing/kprobes: Move common functions to trace_probe.h tracing/probes: Integrate duplicate set_print_fmt() tracing/probes: Move fetch function helpers to trace_probe.h tracing/probes: Split [ku]probes_fetch_type_table tracing/probes: Implement 'stack' fetch method for uprobes tracing/probes: Move 'symbol' fetch method to kprobes tracing/probes: Implement 'memory' fetch method for uprobes tracing/uprobes: Pass 'is_return' to traceprobe_parse_probe_arg() tracing/uprobes: Fetch args before reserving a ring buffer tracing/uprobes: Add support for full argument access methods tracing/uprobes: Add @+file_offset fetch method Oleg Nesterov (1): uprobes: Allocate ->utask before handler_chain() for tracing handlers Documentation/trace/uprobetracer.txt | 36 +- kernel/events/uprobes.c | 4 + kernel/trace/trace_kprobe.c | 666 +++++++++++++++++++---------------- kernel/trace/trace_probe.c | 458 ++++++++++-------------- kernel/trace/trace_probe.h | 220 +++++++++++- kernel/trace/trace_uprobe.c | 481 ++++++++++++++++++------- 6 files changed, 1140 insertions(+), 725 deletions(-) -- 1.7.11.7