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| author | Daniel T. Lee <danieltimlee@gmail.com> | 2022-12-24 10:15:27 +0300 |
|---|---|---|
| committer | Andrii Nakryiko <andrii@kernel.org> | 2022-12-30 01:22:34 +0300 |
| commit | 7244eb669397f309c3d014264823cdc9cb3f8e6b (patch) | |
| tree | aa9d2bdc25de12d6558f43104783a8a4b8b302ae /tools/lib | |
| parent | c5ffb26375ad309c858453f17e777b716723d527 (diff) | |
| download | linux-7244eb669397f309c3d014264823cdc9cb3f8e6b.tar.xz | |
libbpf: Fix invalid return address register in s390
There is currently an invalid register mapping in the s390 return
address register. As the manual[1] states, the return address can be
found at r14. In bpf_tracing.h, the s390 registers were named
gprs(general purpose registers). This commit fixes the problem by
correcting the mistyped mapping.
[1]: https://uclibc.org/docs/psABI-s390x.pdf#page=14
Fixes: 3cc31d794097 ("libbpf: Normalize PT_REGS_xxx() macro definitions")
Signed-off-by: Daniel T. Lee <danieltimlee@gmail.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20221224071527.2292-7-danieltimlee@gmail.com
Diffstat (limited to 'tools/lib')
| -rw-r--r-- | tools/lib/bpf/bpf_tracing.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/lib/bpf/bpf_tracing.h b/tools/lib/bpf/bpf_tracing.h index 2972dc25ff72..9c1b1689068d 100644 --- a/tools/lib/bpf/bpf_tracing.h +++ b/tools/lib/bpf/bpf_tracing.h @@ -137,7 +137,7 @@ struct pt_regs___s390 { #define __PT_PARM3_REG gprs[4] #define __PT_PARM4_REG gprs[5] #define __PT_PARM5_REG gprs[6] -#define __PT_RET_REG grps[14] +#define __PT_RET_REG gprs[14] #define __PT_FP_REG gprs[11] /* Works only with CONFIG_FRAME_POINTER */ #define __PT_RC_REG gprs[2] #define __PT_SP_REG gprs[15] |