From: Ilya Leoshkevich Date: Wed, 9 Feb 2022 02:17:41 +0000 (+0100) Subject: libbpf: Fix accessing syscall arguments on riscv X-Git-Tag: v5.18-rc1~136^2~392^2~3^2~4 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=cf0b5b2769233b026cfa41206109dea77b0d17e3;p=thirdparty%2Flinux.git 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 Signed-off-by: Ilya Leoshkevich Signed-off-by: Andrii Nakryiko Link: https://lore.kernel.org/bpf/20220209021745.2215452-7-iii@linux.ibm.com --- diff --git a/tools/lib/bpf/bpf_tracing.h b/tools/lib/bpf/bpf_tracing.h index 03e501ac8f603..41a015ee6bfb4 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