On Sun, Dec 25, 2022 at 4:02 AM Hengqi Chen <hengqi.chen@xxxxxxxxx> wrote: > > Add PT_REGS macros for LoongArch64 ([0]). > > [0]: https://loongson.github.io/LoongArch-Documentation/LoongArch-ELF-ABI-EN.html > > Signed-off-by: Hengqi Chen <hengqi.chen@xxxxxxxxx> > --- > tools/lib/bpf/bpf_tracing.h | 21 +++++++++++++++++++++ > 1 file changed, 21 insertions(+) > > diff --git a/tools/lib/bpf/bpf_tracing.h b/tools/lib/bpf/bpf_tracing.h > index 2972dc25ff72..5a8a0830d133 100644 > --- a/tools/lib/bpf/bpf_tracing.h > +++ b/tools/lib/bpf/bpf_tracing.h > @@ -32,6 +32,9 @@ > #elif defined(__TARGET_ARCH_arc) > #define bpf_target_arc > #define bpf_target_defined > +#elif defined(__TARGET_ARCH_loongarch) > + #define bpf_target_loongarch > + #define bpf_target_defined > #else > > /* Fall back to what the compiler says */ > @@ -62,6 +65,9 @@ > #elif defined(__arc__) > #define bpf_target_arc > #define bpf_target_defined > +#elif defined(__loongarch__) && __loongarch_grlen == 64 > + #define bpf_target_loongarch > + #define bpf_target_defined > #endif /* no compiler target */ > > #endif > @@ -258,6 +264,21 @@ struct pt_regs___arm64 { > /* arc does not select ARCH_HAS_SYSCALL_WRAPPER. */ > #define PT_REGS_SYSCALL_REGS(ctx) ctx > > +#elif defined(bpf_target_loongarch) > + please put https://loongson.github.io/LoongArch-Documentation/LoongArch-ELF-ABI-EN.html in a comment somewhere here > +#define __PT_PARM1_REG regs[4] > +#define __PT_PARM2_REG regs[5] > +#define __PT_PARM3_REG regs[6] > +#define __PT_PARM4_REG regs[7] > +#define __PT_PARM5_REG regs[8] > +#define __PT_RET_REG regs[1] > +#define __PT_FP_REG regs[22] > +#define __PT_RC_REG regs[4] > +#define __PT_SP_REG regs[3] > +#define __PT_IP_REG csr_era > +/* loongarch does not select ARCH_HAS_SYSCALL_WRAPPER. */ > +#define PT_REGS_SYSCALL_REGS(ctx) ctx > + > #endif > > #if defined(bpf_target_defined) > -- > 2.31.1
