| Message ID | 20240829133253.882133-1-pulehui@huaweicloud.com (mailing list archive) |
|---|---|
| Headers | show |
| Series | Fix accessing first syscall argument on RV64 | expand |
On 2024/8/29 21:32, Pu Lehui wrote: > On RV64, as Ilya mentioned before [0], the first syscall parameter should be > accessed through orig_a0 (see arch/riscv64/include/asm/syscall.h), > otherwise it will cause selftests like bpf_syscall_macro, vmlinux, > test_lsm, etc. to fail on RV64. > > Link: https://lore.kernel.org/bpf/20220209021745.2215452-1-iii@linux.ibm.com [0] > > Pu Lehui (2): > libbpf: Fix accessing first syscall argument on RV64 > selftests/bpf: Skip case involving first arg in bpf_syscall_macro on > RV64 > > tools/lib/bpf/bpf_tracing.h | 9 ++++++++- > .../selftests/bpf/prog_tests/test_bpf_syscall_macro.c | 2 +- > tools/testing/selftests/bpf/progs/bpf_syscall_macro.c | 2 +- > 3 files changed, 10 insertions(+), 3 deletions(-) > There was an error in sending this time. A new one has been sent. Sorry for the noise.
On RV64, as Ilya mentioned before [0], the first syscall parameter should be accessed through orig_a0 (see arch/riscv64/include/asm/syscall.h), otherwise it will cause selftests like bpf_syscall_macro, vmlinux, test_lsm, etc. to fail on RV64. Link: https://lore.kernel.org/bpf/20220209021745.2215452-1-iii@linux.ibm.com [0] Pu Lehui (2): libbpf: Fix accessing first syscall argument on RV64 selftests/bpf: Skip case involving first arg in bpf_syscall_macro on RV64 tools/lib/bpf/bpf_tracing.h | 9 ++++++++- .../selftests/bpf/prog_tests/test_bpf_syscall_macro.c | 2 +- tools/testing/selftests/bpf/progs/bpf_syscall_macro.c | 2 +- 3 files changed, 10 insertions(+), 3 deletions(-)