diff options
Diffstat (limited to 'tools/lib/bpf/bpf_tracing.h')
| -rw-r--r-- | tools/lib/bpf/bpf_tracing.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/tools/lib/bpf/bpf_tracing.h b/tools/lib/bpf/bpf_tracing.h index 032ba809f3e5..a5e92656bfba 100644 --- a/tools/lib/bpf/bpf_tracing.h +++ b/tools/lib/bpf/bpf_tracing.h @@ -326,6 +326,16 @@ struct pt_regs; #endif /* defined(bpf_target_defined) */ +/* + * When invoked from a syscall handler kprobe, returns a pointer to a + * struct pt_regs containing syscall arguments and suitable for passing to + * PT_REGS_PARMn_SYSCALL() and PT_REGS_PARMn_CORE_SYSCALL(). + */ +#ifndef PT_REGS_SYSCALL_REGS +/* By default, assume that the arch selects ARCH_HAS_SYSCALL_WRAPPER. */ +#define PT_REGS_SYSCALL_REGS(ctx) ((struct pt_regs *)PT_REGS_PARM1(ctx)) +#endif + #ifndef ___bpf_concat #define ___bpf_concat(a, b) a ## b #endif |