Commit 589fed47 authored by Björn Töpel's avatar Björn Töpel Committed by Daniel Borkmann
Browse files

riscv, libbpf: Add RISC-V (RV64) support to bpf_tracing.h 



Add macros for 64-bit RISC-V PT_REGS to bpf_tracing.h.

Signed-off-by: default avatarBjörn Töpel <bjorn@kernel.org>
Signed-off-by: default avatarDaniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20211028161057.520552-4-bjorn@kernel.org
parent b390d698

tools/lib/bpf/bpf_tracing.h

+32 −0
Original line number Diff line number Diff line
@@ -24,6 +24,9 @@ 
#elif defined(__TARGET_ARCH_sparc)

	#define bpf_target_sparc

	#define bpf_target_defined

#elif defined(__TARGET_ARCH_riscv)

	#define bpf_target_riscv

	#define bpf_target_defined

#else



/* Fall back to what the compiler says */
@@ -48,6 +51,9 @@ 
#elif defined(__sparc__)

	#define bpf_target_sparc

	#define bpf_target_defined

#elif defined(__riscv) && __riscv_xlen == 64

	#define bpf_target_riscv

	#define bpf_target_defined

#endif /* no compiler target */



#endif
@@ -288,6 +294,32 @@ struct pt_regs; 
#define PT_REGS_IP_CORE(x) BPF_CORE_READ((x), pc)

#endif



#elif defined(bpf_target_riscv)



struct pt_regs;

#define PT_REGS_RV const volatile struct user_regs_struct

#define PT_REGS_PARM1(x) (((PT_REGS_RV *)(x))->a0)

#define PT_REGS_PARM2(x) (((PT_REGS_RV *)(x))->a1)

#define PT_REGS_PARM3(x) (((PT_REGS_RV *)(x))->a2)

#define PT_REGS_PARM4(x) (((PT_REGS_RV *)(x))->a3)

#define PT_REGS_PARM5(x) (((PT_REGS_RV *)(x))->a4)

#define PT_REGS_RET(x) (((PT_REGS_RV *)(x))->ra)

#define PT_REGS_FP(x) (((PT_REGS_RV *)(x))->s5)

#define PT_REGS_RC(x) (((PT_REGS_RV *)(x))->a5)

#define PT_REGS_SP(x) (((PT_REGS_RV *)(x))->sp)

#define PT_REGS_IP(x) (((PT_REGS_RV *)(x))->epc)



#define PT_REGS_PARM1_CORE(x) BPF_CORE_READ((PT_REGS_RV *)(x), a0)

#define PT_REGS_PARM2_CORE(x) BPF_CORE_READ((PT_REGS_RV *)(x), a1)

#define PT_REGS_PARM3_CORE(x) BPF_CORE_READ((PT_REGS_RV *)(x), a2)

#define PT_REGS_PARM4_CORE(x) BPF_CORE_READ((PT_REGS_RV *)(x), a3)

#define PT_REGS_PARM5_CORE(x) BPF_CORE_READ((PT_REGS_RV *)(x), a4)

#define PT_REGS_RET_CORE(x) BPF_CORE_READ((PT_REGS_RV *)(x), ra)

#define PT_REGS_FP_CORE(x) BPF_CORE_READ((PT_REGS_RV *)(x), fp)

#define PT_REGS_RC_CORE(x) BPF_CORE_READ((PT_REGS_RV *)(x), a5)

#define PT_REGS_SP_CORE(x) BPF_CORE_READ((PT_REGS_RV *)(x), sp)

#define PT_REGS_IP_CORE(x) BPF_CORE_READ((PT_REGS_RV *)(x), epc)



#endif



#if defined(bpf_target_powerpc)