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authorNicholas Piggin <npiggin@gmail.com>2021-05-20 21:19:31 +1000
committerMichael Ellerman <mpe@ellerman.id.au>2021-05-21 00:58:56 +1000
commitd72500f992849d31ebae8f821a023660ddd0dcc2 (patch)
treeba13c3f0cf481d3653836f19769fe685021c9826 /Documentation
parent5665bc35c1ed917ac8fd06cb651317bb47a65b10 (diff)
powerpc/64s/syscall: Fix ptrace syscall info with scv syscalls
The scv implementation missed updating syscall return value and error value get/set functions to deal with the changed register ABI. This broke ptrace PTRACE_GET_SYSCALL_INFO as well as some kernel auditing and tracing functions. Fix. tools/testing/selftests/ptrace/get_syscall_info now passes when scv is used. Fixes: 7fa95f9adaee ("powerpc/64s: system call support for scv/rfscv instructions") Cc: stable@vger.kernel.org # v5.9+ Reported-by: "Dmitry V. Levin" <ldv@altlinux.org> Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Reviewed-by: Dmitry V. Levin <ldv@altlinux.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20210520111931.2597127-2-npiggin@gmail.com
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