This patch is part of Google Summer of Code (GSoC) 2019. More about the project can be found in: https://wiki.qemu.org/Internships/ProjectIdeas/TCGCodeQuality
This adds --perf command-line option to dump Linux Perf jitdump files. These files are used to enhant Perf report and to be able to analyze and dump JITed code with perf. Example of use: perf record -k 1 qemu-x86_64 -perf ./a.out perf inject -j -i perf.data -o perf.data.jitted perf report -i perf.data.jitted vandersonmr (2): accel/tcg: adding integration with linux perf tb-stats: adding TBStatistics info into perf dump accel/tcg/Makefile.objs | 1 + accel/tcg/perf/Makefile.objs | 1 + accel/tcg/perf/jitdump.c | 193 +++++++++++++++++++++++++++++++++++ accel/tcg/perf/jitdump.h | 19 ++++ accel/tcg/translate-all.c | 12 +++ include/qemu-common.h | 3 + linux-user/main.c | 7 ++ qemu-options.hx | 12 +++ 8 files changed, 248 insertions(+) create mode 100644 accel/tcg/perf/Makefile.objs create mode 100644 accel/tcg/perf/jitdump.c create mode 100644 accel/tcg/perf/jitdump.h -- 2.22.0
