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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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293d5b4394
Support probing on offline cross-architecture binary by adding getting the target machine arch from ELF and choose correct register string for the machine. Here is an example: ----- $ perf probe --vmlinux=./vmlinux-arm --definition 'do_sys_open $params' p:probe/do_sys_open do_sys_open+0 dfd=%r5:s32 filename=%r1:u32 flags=%r6:s32 mode=%r3:u16 ----- Here, we can get probe/do_sys_open from above and append it to to the target machine's tracing/kprobe_events file in the tracefs mountput, usually /sys/kernel/debug/tracing/kprobe_events (or /sys/kernel/tracing/kprobe_events). Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/147214229717.23638.6440579792548044658.stgit@devbox [ Add definition for EM_AARCH64 to fix the build on at least centos 6, debian 7 & ubuntu 12.04.5 ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
10 lines
256 B
C
10 lines
256 B
C
#ifdef DEFINE_DWARF_REGSTR_TABLE
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/* This is included in perf/util/dwarf-regs.c */
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static const char * const arm_regstr_tbl[] = {
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"%r0", "%r1", "%r2", "%r3", "%r4",
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"%r5", "%r6", "%r7", "%r8", "%r9", "%r10",
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"%fp", "%ip", "%sp", "%lr", "%pc",
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};
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#endif
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