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In293d5b4394("perf probe: Support probing on offline cross-arch binary") DWARF register tables were introduced for many architectures, with the one for the "dx" register being broken for x86_64, which got noticed by the 'perf test bpf' testcase, that has this difference from a successful run to one that fails, with the aforementioned patch: -Writing event: p:perf_bpf_probe/func _text+5197232 f_mode=+68(%di):x32 offset=%si:s64 orig=dx:s32 -Failed to write event: Invalid argument -bpf_probe: failed to apply perf probe eventsFailed to add events selected by BPF +Writing event: p:perf_bpf_probe/func _text+5197232 f_mode=+68(%di):x32 offset=%si:s64 orig=%dx:s32 Add the missing '%' to '%dx' to fix this. Acked-by: Masami Hiramatsu <mhiramat@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Fixes:293d5b4394("perf probe: Support probing on offline cross-arch binary") Link: https://lkml.kernel.org/r/20160909145955.GC32585@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
15 lines
413 B
C
15 lines
413 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 x86_32_regstr_tbl[] = {
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"%ax", "%cx", "%dx", "%bx", "$stack",/* Stack address instead of %sp */
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"%bp", "%si", "%di",
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};
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static const char * const x86_64_regstr_tbl[] = {
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"%ax", "%dx", "%cx", "%bx", "%si", "%di",
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"%bp", "%sp", "%r8", "%r9", "%r10", "%r11",
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"%r12", "%r13", "%r14", "%r15",
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};
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#endif
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