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| author | Andrii Nakryiko <andrii@kernel.org> | 2023-01-20 23:08:57 +0300 |
|---|---|---|
| committer | Daniel Borkmann <daniel@iogearbox.net> | 2023-01-23 22:53:00 +0300 |
| commit | 0ac086567916e189c7db71da7339e20b5747f8ac (patch) | |
| tree | 5954cc57096c4610594ea4779bef3e5fd6ad9042 /tools/lib/bpf/bpf_tracing.h | |
| parent | b13ed8ca7fba3d3e61621be021fdccd5c44b2634 (diff) | |
| download | linux-0ac086567916e189c7db71da7339e20b5747f8ac.tar.xz | |
libbpf: Fix and complete ARC spec in bpf_tracing.h
Add PARM6 through PARM8 definitions. Also fix frame pointer (FP)
register definition. Also leave a link to where to find ABI spec.
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20230120200914.3008030-9-andrii@kernel.org
Diffstat (limited to 'tools/lib/bpf/bpf_tracing.h')
| -rw-r--r-- | tools/lib/bpf/bpf_tracing.h | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/tools/lib/bpf/bpf_tracing.h b/tools/lib/bpf/bpf_tracing.h index 579e2f830532..815c50ccedf4 100644 --- a/tools/lib/bpf/bpf_tracing.h +++ b/tools/lib/bpf/bpf_tracing.h @@ -291,6 +291,11 @@ struct pt_regs___arm64 { #elif defined(bpf_target_arc) +/* + * Section "Function Calling Sequence" (page 24): + * https://raw.githubusercontent.com/wiki/foss-for-synopsys-dwc-arc-processors/toolchain/files/ARCv2_ABI.pdf + */ + /* 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 @@ -298,8 +303,11 @@ struct pt_regs___arm64 { #define __PT_PARM3_REG scratch.r2 #define __PT_PARM4_REG scratch.r3 #define __PT_PARM5_REG scratch.r4 +#define __PT_PARM6_REG scratch.r5 +#define __PT_PARM7_REG scratch.r6 +#define __PT_PARM8_REG scratch.r7 #define __PT_RET_REG scratch.blink -#define __PT_FP_REG __unsupported__ +#define __PT_FP_REG scratch.fp #define __PT_RC_REG scratch.r0 #define __PT_SP_REG scratch.sp #define __PT_IP_REG scratch.ret |