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mirror_ubuntu-kernels/tools/testing/selftests/seccomp
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Nicholas Piggin 5665bc35c1 powerpc/64s/syscall: Use pt_regs.trap to distinguish syscall ABI difference between sc and scv syscalls 
The sc and scv 0 system calls have different ABI conventions, and
ptracers need to know which system call type is being used if they want
to look at the syscall registers.

Document that pt_regs.trap can be used for this, and fix one in-tree user
to work with scv 0 syscalls.

Fixes: 7fa95f9ada ("powerpc/64s: system call support for scv/rfscv instructions")
Cc: stable@vger.kernel.org # v5.9+
Reported-by: "Dmitry V. Levin" <ldv@altlinux.org>
Suggested-by: "Dmitry V. Levin" <ldv@altlinux.org>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210520111931.2597127-1-npiggin@gmail.com
2021-05-21 00:58:03 +10:00
..
.gitignore .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
config selftests/seccomp: Update kernel config 2020-12-02 11:20:54 -08:00
Makefile selftests: Fix seccomp to support relocatable build (O=objdir) 2020-03-26 15:28:19 -06:00
seccomp_benchmark.c selftests/seccomp: Compare bitmap vs filter overhead 2020-11-20 11:16:34 -08:00
seccomp_bpf.c powerpc/64s/syscall: Use pt_regs.trap to distinguish syscall ABI difference between sc and scv syscalls 2021-05-21 00:58:03 +10:00
settings selftests/seccomp: Compare bitmap vs filter overhead 2020-11-20 11:16:34 -08:00