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erofs-linux/tools/lib
Andrii Nakryiko 7221b9caf8 libbpf: Fix powerpc's stack register definition in bpf_tracing.h
retsnoop's build on powerpc (ppc64le) architecture ([0]) failed due to
wrong definition of PT_REGS_SP() macro. Looking at powerpc's
implementation of stack unwinding in perf_callchain_user_64() clearly
shows that stack pointer register is gpr[1].

Fix libbpf's definition of __PT_SP_REG for powerpc to fix all this.

  [0] https://kojipkgs.fedoraproject.org/work/tasks/1544/137921544/build.log

Fixes: 138d6153a1 ("samples/bpf: Enable powerpc support")
Signed-off-by: Andrii Nakryiko <[email protected]>
Reviewed-by: Naveen N Rao (AMD) <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Alexei Starovoitov <[email protected]>
2025-10-23 11:25:16 -07:00
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