From: Stephane Eranian <eran...@gmail.com> This patch series provides several important enhancements to the perf jit code profiling support. The following is changed: - enable building pref jitdump support without DWARF (Maciej) - Add Exception Handling (EH) Frame record type to support unwinding - remove useless padding of data in jitdump file - provide a specification document for the jitdump format to help jit runtime developers add support
Note that the runtime needs to emit the unwind information. This is not supported for openJDK via JVMTI. Thanks to Maciej, Stefano, and Ross for their contributions. Maciej Debski (1): perf/jit: enable jitdump support without dwarf Stefano Sanfilippo (5): perf/jit: make perf skip unknown records perf/jit: do not assume pgoff is zero perf/jit: add unwinding support perf/jit: generate .eh_frame/.eh_frame_hdr in DSO perf/jit: Check JITHEADER_VERSION Stephane Eranian (3): perf/jit: improve error messages from JVMTI perf/jit: remove unecessary padding in jitdump file perf/jit: add jitdump format specification document tools/perf/Documentation/jitdump-specification.txt | 170 +++++++++++++++++++++ tools/perf/Makefile.config | 2 - tools/perf/jvmti/jvmti_agent.c | 38 +---- tools/perf/jvmti/libjvmti.c | 37 +++-- tools/perf/util/Build | 2 +- tools/perf/util/genelf.c | 109 ++++++++++++- tools/perf/util/genelf.h | 5 +- tools/perf/util/jitdump.c | 80 ++++++++-- tools/perf/util/jitdump.h | 12 ++ tools/perf/util/unwind-libunwind-local.c | 4 +- 10 files changed, 393 insertions(+), 66 deletions(-) create mode 100644 tools/perf/Documentation/jitdump-specification.txt -- 1.9.1
