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| author |  Hengqi Chen <hengqi.chen@gmail.com>
| 2022-12-31 18:07:57 +0800 |
|---|---|---|
| committer |  Daniel Borkmann <daniel@iogearbox.net>
| 2023-01-03 16:46:09 +0100 |
| commit | 00883922ab404c0fc921709d8c2cec86f49c32f2 (patch) | |
| tree | a4c682eb39b0b03e94d1eaf20474ff2d86f231ed /tools/lib | |
| parent | libbpf: Restore errno after pr_warn. (diff) | |
| download | linux-00883922ab404c0fc921709d8c2cec86f49c32f2.tar.gz linux-00883922ab404c0fc921709d8c2cec86f49c32f2.tar.bz2 linux-00883922ab404c0fc921709d8c2cec86f49c32f2.zip | |
libbpf: Add LoongArch support to bpf_tracing.h
Add PT_REGS macros for LoongArch ([0]).
[0]: https://loongson.github.io/LoongArch-Documentation/LoongArch-ELF-ABI-EN.html
Signed-off-by: Hengqi Chen <hengqi.chen@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Huacai Chen <chenhuacai@loongson.cn>
Link: https://lore.kernel.org/bpf/20221231100757.3177034-1-hengqi.chen@gmail.com
Diffstat (limited to 'tools/lib')
| -rw-r--r-- | tools/lib/bpf/bpf_tracing.h | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/tools/lib/bpf/bpf_tracing.h b/tools/lib/bpf/bpf_tracing.h index 9c1b1689068d..bdb0f6b5be84 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__) + #define bpf_target_loongarch + #define bpf_target_defined #endif /* no compiler target */ #endif @@ -258,6 +264,23 @@ struct pt_regs___arm64 { /* arc does not select ARCH_HAS_SYSCALL_WRAPPER. */ #define PT_REGS_SYSCALL_REGS(ctx) ctx +#elif defined(bpf_target_loongarch) + +/* https://loongson.github.io/LoongArch-Documentation/LoongArch-ELF-ABI-EN.html */ + +#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) |