Re: [PATCH v2 3/4] perf tools: arm64: Decouple Libunwind register names from Perf
From: Leo Yan <hidden>
Date: 2022-05-17 12:54:54
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linux-perf-users, lkml
On Tue, May 17, 2022 at 11:20:04AM +0100, James Clark wrote:
Dwarf register numbers and real register numbers on aarch64 are equivalent. Remove the references to the register names from Libunwind so that new registers are supported without having to add build time feature checks for each new register. The unwinder won't ask for a register that it doesn't know about and Perf will already report an error for an unknown or unrecorded register in the perf_reg_value() function so extra validation isn't needed. After this change the new VG register can be read by libunwind. Signed-off-by: James Clark <redacted>
Looks good to me: Reviewed-by: Leo Yan <redacted> _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel