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| author | Ilya Leoshkevich <iii@linux.ibm.com> | 2022-02-09 03:17:41 +0100 |
|---|---|---|
| committer | Andrii Nakryiko <andrii@kernel.org> | 2022-02-09 06:16:14 +0100 |
| commit | cf0b5b2769233b026cfa41206109dea77b0d17e3 (patch) | |
| tree | 4c3c7c2bc38e6b654c7dfb4efe2cb58701add523 /tools/lib | |
| parent | libbpf: Fix riscv register names (diff) | |
| download | linux-cf0b5b2769233b026cfa41206109dea77b0d17e3.tar.xz linux-cf0b5b2769233b026cfa41206109dea77b0d17e3.zip | |
libbpf: Fix accessing syscall arguments on riscv
riscv does not select ARCH_HAS_SYSCALL_WRAPPER, so its syscall
handlers take "unpacked" syscall arguments. Indicate this to libbpf
using PT_REGS_SYSCALL_REGS macro.
Reported-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20220209021745.2215452-7-iii@linux.ibm.com
Diffstat (limited to 'tools/lib')
| -rw-r--r-- | tools/lib/bpf/bpf_tracing.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/tools/lib/bpf/bpf_tracing.h b/tools/lib/bpf/bpf_tracing.h index 03e501ac8f60..41a015ee6bfb 100644 --- a/tools/lib/bpf/bpf_tracing.h +++ b/tools/lib/bpf/bpf_tracing.h @@ -214,6 +214,8 @@ #define __PT_RC_REG a5 #define __PT_SP_REG sp #define __PT_IP_REG pc +/* riscv does not select ARCH_HAS_SYSCALL_WRAPPER. */ +#define PT_REGS_SYSCALL_REGS(ctx) ctx #endif |