These patches add the required mappings to use perf probe on PowerPC. Part 1 of the patch series moves the arch dependent x86 32 and 64 bit DWARF register number mappings out into a separate arch directory and adds the necessary Makefile foo to use it.
Part 2 of the patch series adds the PowerPC mappings - Functionality wise it requires the patch titled "powerpc: Add kprobe-based event tracer" from the powerpc-next tree to provide the HAVE_REGS_AND_STACK_ACCESS_API required for CONFIG_KPROBE_EVENT. The code will still compile cleanly without it and will fail gracefully at runtime on the missing CONFIG_KPROBE_EVENT support as before as well as printing a warning message during compilation. Changes since v2: From Masami Hiramatsu's feedback DWARF support is disabled altogether if the architecture specific Makefile does not define PERF_HAVE_DWARF_REGS - ie, DWARF register mappings are missing for the architecture. A message indicating this is printed out during compilation. _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
