From 93391a6f90774d4e6ee3d21972ef937eb183067c Mon Sep 17 00:00:00 2001 From: Super User Date: Fri, 14 Mar 2025 17:31:35 +0800 Subject: [PATCH] add sw_64 support --- src/bpf_tracing.h | 35 +++++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) diff --git a/src/bpf_tracing.h b/src/bpf_tracing.h index 6fb3d0f..ba30c3f 100644 --- a/src/bpf_tracing.h +++ b/src/bpf_tracing.h @@ -35,6 +35,9 @@ #elif defined(__TARGET_ARCH_loongarch) #define bpf_target_loongarch #define bpf_target_defined +#elif defined(__TARGET_ARCH_sw_64) + #define bpf_target_sw64 + #define bpf_target_defined #else /* Fall back to what the compiler says */ @@ -68,6 +71,9 @@ #elif defined(__loongarch__) #define bpf_target_loongarch #define bpf_target_defined +#elif defined(__sw_64__) + #define bpf_target_sw64 + #define bpf_target_defined #endif /* no compiler target */ #endif @@ -442,6 +448,35 @@ struct pt_regs___arm64 { #define __PT_SP_REG regs[3] #define __PT_IP_REG csr_era +#elif defined(bpf_target_sw64) + +/* sw64 provides struct user_pt_regs instead of struct pt_regs to userspace */ +struct pt_regs; +#define PT_REGS_SW64 const volatile struct user_pt_regs +#define PT_REGS_PARM1(x) (((PT_REGS_SW64 *)(x))->regs[16]) +#define PT_REGS_PARM2(x) (((PT_REGS_SW64 *)(x))->regs[17]) +#define PT_REGS_PARM3(x) (((PT_REGS_SW64 *)(x))->regs[18]) +#define PT_REGS_PARM4(x) (((PT_REGS_SW64 *)(x))->regs[19]) +#define PT_REGS_PARM5(x) (((PT_REGS_SW64 *)(x))->regs[20]) +#define PT_REGS_RET(x) (((PT_REGS_SW64 *)(x))->regs[26]) +/* Works only with CONFIG_FRAME_POINTER */ +#define PT_REGS_FP(x) (((PT_REGS_SW64 *)(x))->regs[15]) +#define PT_REGS_RC(x) (((PT_REGS_SW64 *)(x))->regs[0]) +#define PT_REGS_SP(x) (((PT_REGS_SW64 *)(x))->regs[30]) +#define PT_REGS_IP(x) (((PT_REGS_SW64 *)(x))->pc) + +#define PT_REGS_PARM1_CORE(x) BPF_CORE_READ((PT_REGS_SW64 *)(x), regs[16]) +#define PT_REGS_PARM2_CORE(x) BPF_CORE_READ((PT_REGS_SW64 *)(x), regs[17]) +#define PT_REGS_PARM3_CORE(x) BPF_CORE_READ((PT_REGS_SW64 *)(x), regs[18]) +#define PT_REGS_PARM4_CORE(x) BPF_CORE_READ((PT_REGS_SW64 *)(x), regs[19]) +#define PT_REGS_PARM5_CORE(x) BPF_CORE_READ((PT_REGS_SW64 *)(x), regs[20]) +#define PT_REGS_RET_CORE(x) BPF_CORE_READ((PT_REGS_SW64 *)(x), regs[26]) +#define PT_REGS_FP_CORE(x) BPF_CORE_READ((PT_REGS_SW64 *)(x), regs[15]) +#define PT_REGS_RC_CORE(x) BPF_CORE_READ((PT_REGS_SW64 *)(x), regs[0]) +#define PT_REGS_SP_CORE(x) BPF_CORE_READ((PT_REGS_SW64 *)(x), regs[30]) +#define PT_REGS_IP_CORE(x) BPF_CORE_READ((PT_REGS_SW64 *)(x), pc) + + #endif #if defined(bpf_target_defined) -- 2.43.0