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| author | Vladimir Isaev <isaev@synopsys.com> | 2022-04-09 01:44:42 +0300 |
|---|---|---|
| committer | Andrii Nakryiko <andrii@kernel.org> | 2022-04-11 04:53:37 +0300 |
| commit | 0738599856542bab0ebcd73cab9d8f15bddedcee (patch) | |
| tree | 8bd5ae52f6fe97251f624b0aa06698f32a1e0e8b | |
| parent | 34ba23b44c664792a4308ec37b5788a3162944ec (diff) | |
| download | linux-0738599856542bab0ebcd73cab9d8f15bddedcee.tar.xz | |
libbpf: Add ARC support to bpf_tracing.h
Add PT_REGS macros suitable for ARCompact and ARCv2.
Signed-off-by: Vladimir Isaev <isaev@synopsys.com>
Signed-off-by: Sergey Matyukevich <geomatsi@gmail.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Song Liu <songliubraving@fb.com>
Link: https://lore.kernel.org/bpf/20220408224442.599566-1-geomatsi@gmail.com
| -rw-r--r-- | tools/include/uapi/asm/bpf_perf_event.h | 2 | ||||
| -rw-r--r-- | tools/lib/bpf/bpf_tracing.h | 23 |
2 files changed, 25 insertions, 0 deletions
diff --git a/tools/include/uapi/asm/bpf_perf_event.h b/tools/include/uapi/asm/bpf_perf_event.h index 39acc149d843..d7dfeab0d71a 100644 --- a/tools/include/uapi/asm/bpf_perf_event.h +++ b/tools/include/uapi/asm/bpf_perf_event.h @@ -1,5 +1,7 @@ #if defined(__aarch64__) #include "../../arch/arm64/include/uapi/asm/bpf_perf_event.h" +#elif defined(__arc__) +#include "../../arch/arc/include/uapi/asm/bpf_perf_event.h" #elif defined(__s390__) #include "../../arch/s390/include/uapi/asm/bpf_perf_event.h" #elif defined(__riscv) diff --git a/tools/lib/bpf/bpf_tracing.h b/tools/lib/bpf/bpf_tracing.h index e3a8c947e89f..01ce121c302d 100644 --- a/tools/lib/bpf/bpf_tracing.h +++ b/tools/lib/bpf/bpf_tracing.h @@ -27,6 +27,9 @@ #elif defined(__TARGET_ARCH_riscv) #define bpf_target_riscv #define bpf_target_defined +#elif defined(__TARGET_ARCH_arc) + #define bpf_target_arc + #define bpf_target_defined #else /* Fall back to what the compiler says */ @@ -54,6 +57,9 @@ #elif defined(__riscv) && __riscv_xlen == 64 #define bpf_target_riscv #define bpf_target_defined +#elif defined(__arc__) + #define bpf_target_arc + #define bpf_target_defined #endif /* no compiler target */ #endif @@ -233,6 +239,23 @@ struct pt_regs___arm64 { /* riscv does not select ARCH_HAS_SYSCALL_WRAPPER. */ #define PT_REGS_SYSCALL_REGS(ctx) ctx +#elif defined(bpf_target_arc) + +/* arc provides struct user_pt_regs instead of struct pt_regs to userspace */ +#define __PT_REGS_CAST(x) ((const struct user_regs_struct *)(x)) +#define __PT_PARM1_REG scratch.r0 +#define __PT_PARM2_REG scratch.r1 +#define __PT_PARM3_REG scratch.r2 +#define __PT_PARM4_REG scratch.r3 +#define __PT_PARM5_REG scratch.r4 +#define __PT_RET_REG scratch.blink +#define __PT_FP_REG __unsupported__ +#define __PT_RC_REG scratch.r0 +#define __PT_SP_REG scratch.sp +#define __PT_IP_REG scratch.ret +/* arc does not select ARCH_HAS_SYSCALL_WRAPPER. */ +#define PT_REGS_SYSCALL_REGS(ctx) ctx + #endif #if defined(bpf_target_defined) |