| Age | Commit message (Collapse) | Author | Files | Lines | |
|---|---|---|---|---|---|
| 2009-10-17 | perf: Use die() for error cases in perf-probe | Masami Hiramatsu | 1 | -33/+14 | |
| Use die() for exiting perf-probe with errors. This replaces perror_exit(), msg_exit() and fprintf()+exit() with die(), and uses die() in semantic_error(). This also renames 'die' local variables to 'dw_die' for avoiding name confliction. Signed-off-by: Masami Hiramatsu <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Arnaldo Carvalho de Melo <[email protected]> Cc: Steven Rostedt <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Peter Zijlstra <[email protected]> LKML-Reference: <[email protected]> Signed-off-by: Ingo Molnar <[email protected]> | |||||
| 2009-10-12 | perf probe: Add perf probe command support without libdwarf | Masami Hiramatsu | 1 | -7/+35 | |
| Enables 'perf probe' even if libdwarf is not installed. If libdwarf is not found, 'perf probe' just disables dwarf support. Users can use 'perf probe' to set up new events by using kprobe_events format. Signed-off-by: Masami Hiramatsu <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: Arnaldo Carvalho de Melo <[email protected]> Cc: Steven Rostedt <[email protected]> Cc: Mike Galbraith <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Christoph Hellwig <[email protected]> Cc: Ananth N Mavinakayanahalli <[email protected]> Cc: Jim Keniston <[email protected]> Cc: Frank Ch. Eigler <[email protected]> LKML-Reference: <[email protected]> Signed-off-by: Frederic Weisbecker <[email protected]> | |||||
| 2009-10-12 | perf: Add perf probe subcommand, a kprobe-event setup helper | Masami Hiramatsu | 1 | -0/+358 | |
| Add perf probe subcommand that implements a kprobe-event setup helper to the perf command. This allows user to define kprobe events using C expressions (C line numbers, C function names, and C local variables). Usage ----- perf probe [<options>] -P 'PROBEDEF' [-P 'PROBEDEF' ...] -k, --vmlinux <file> vmlinux/module pathname -P, --probe <p|r:[GRP/]NAME FUNC[+OFFS][@SRC]|@SRC:LINE [ARG ...]> probe point definition, where p: kprobe probe r: kretprobe probe GRP: Group name (optional) NAME: Event name FUNC: Function name OFFS: Offset from function entry (in byte) SRC: Source code path LINE: Line number ARG: Probe argument (local variable name or kprobe-tracer argument format is supported.) Changes in v4: - Add _GNU_SOURCE macro for strndup(). Changes in v3: - Remove -r option because perf always be used for online kernel. - Check malloc/calloc results. Changes in v2: - Check synthesized string length. - Rename perf kprobe to perf probe. - Use spaces for separator and update usage comment. - Check error paths in parse_probepoint(). - Check optimized-out variables. Signed-off-by: Masami Hiramatsu <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: Arnaldo Carvalho de Melo <[email protected]> Cc: Steven Rostedt <[email protected]> Cc: Mike Galbraith <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Christoph Hellwig <[email protected]> Cc: Ananth N Mavinakayanahalli <[email protected]> Cc: Jim Keniston <[email protected]> Cc: Frank Ch. Eigler <[email protected]> LKML-Reference: <[email protected]> Signed-off-by: Frederic Weisbecker <[email protected]> | |||||