This patchset fixes various issues with perf probe on powerpc across ABIv1 and ABIv2: - in the presence of DWARF debug-info, - in the absence of DWARF, but with the symbol table, and - in the absence of debug-info, but with kallsyms.
Applies cleanly on -tip. Tested on ppc64 BE and LE. Changes from previous version: Addressed various review comments from Mike Ellerman largely to generalize changes. Some of the simpler patches have been retained in their previous form to limit code churn, while others have been generalized by introducing arch helpers. Individual patches have more details. - Naveen Naveen N. Rao (8): kprobes: Fix kallsyms lookup across powerpc ABIv1 and ABIv2 perf probe: Improve detection of file/function name in the probe pattern perf probe powerpc: Fix symbol fixup issues due to ELF type perf probe powerpc: Handle powerpc dot symbols perf probe powerpc: Allow matching against dot symbols perf tools powerpc: Fix PPC64 ELF ABIv2 symbol decoding perf probe powerpc: Use DWARF info only if necessary perf probe powerpc: Fixup function entry if using kallsyms lookup arch/powerpc/include/asm/kprobes.h | 63 +++++++++++++++++++--------- tools/perf/arch/powerpc/Makefile | 1 + tools/perf/arch/powerpc/util/sym-handling.c | 64 +++++++++++++++++++++++++++++ tools/perf/config/Makefile | 2 + tools/perf/util/probe-event.c | 48 ++++++++++++++++++---- tools/perf/util/probe-event.h | 21 ++++++++++ tools/perf/util/symbol-elf.c | 5 ++- tools/perf/util/symbol.c | 6 +++ tools/perf/util/symbol.h | 6 +++ 9 files changed, 188 insertions(+), 28 deletions(-) create mode 100644 tools/perf/arch/powerpc/util/sym-handling.c -- 2.1.3 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/