To pick up changes from: 2d2123bc7c7f ("arm64/sve: Add prctl controls for userspace vector length management") 7582e22038a2 ("arm64/sve: Backend logic for setting the vector length") That showed a limitation of the regexp used in tools/perf/trace/beauty/prctl_option.sh, that matches only PR_{SET,GET}_, but should match a few more, like PR_MPX_*, PR_CAP_* and the one added by the above commit, PR_SVE_SET_*. This silences this warning when building tools/perf: Warning: Kernel ABI header at 'tools/include/uapi/linux/prctl.h' differs from latest version at 'include/uapi/linux/prctl.h' Support for those extra prctl options should be left for the next merge window tho.
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| @@ -198,4 +198,13 @@ struct prctl_mm_map { · 197 unmodified lines | |||
| 198 | # define PR_CAP_AMBIENT_LOWER 3 | 198 | # define PR_CAP_AMBIENT_LOWER 3 |
| 199 | # define PR_CAP_AMBIENT_CLEAR_ALL 4 | 199 | # define PR_CAP_AMBIENT_CLEAR_ALL 4 |
| 200 | 200 | ||
| 201 | /* arm64 Scalable Vector Extension controls */ | ||
| 202 | /* Flag values must be kept in sync with ptrace NT_ARM_SVE interface */ | ||
| 203 | #define PR_SVE_SET_VL 50 /* set task vector length */ | ||
| 204 | # define PR_SVE_SET_VL_ONEXEC (1 << 18) /* defer effect until exec */ | ||
| 205 | #define PR_SVE_GET_VL 51 /* get task vector length */ | ||
| 206 | /* Bits common to PR_SVE_SET_VL and PR_SVE_GET_VL */ | ||
| 207 | # define PR_SVE_VL_LEN_MASK 0xffff | ||
| 208 | # define PR_SVE_VL_INHERIT (1 << 17) /* inherit across exec */ | ||
| 209 | |||
| 201 | #endif /* _LINUX_PRCTL_H */ | 210 | #endif /* _LINUX_PRCTL_H */ |