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| author | Szabolcs Nagy <szabolcs.nagy@arm.com> | 2020-12-03 11:15:24 +0000 |
|---|---|---|
| committer | Szabolcs Nagy <szabolcs.nagy@arm.com> | 2021-02-12 12:43:02 +0000 |
| commit | f8d6aecefff23e1d5c4f8df128b545db43a49a00 (patch) | |
| tree | 37e6bf951e257e4a53a880ba12afeaf90986bea2 /string/include | |
| parent | b7e368fb86d602bb5578450ec2c078f2a876ea71 (diff) | |
| download | arm-optimized-routines-f8d6aecefff23e1d5c4f8df128b545db43a49a00.tar.gz | |
string: add __mtag_tag_region
Add optimized __mtag_tag_region(dst, len) operation to AOR. It tags the
given memory region according to the tag of the dst pointer and returns
dst. It requires MTE support. The memory remains untagged if tagging is
not enabled for it. The dst must be 16 bytes aligned and len must be a
multiple of 16.
Diffstat (limited to 'string/include')
| -rw-r--r-- | string/include/stringlib.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/string/include/stringlib.h b/string/include/stringlib.h index 841a7bb..b3aa118 100644 --- a/string/include/stringlib.h +++ b/string/include/stringlib.h @@ -54,6 +54,9 @@ size_t __strlen_aarch64_sve (const char *); size_t __strnlen_aarch64_sve (const char *, size_t); int __strncmp_aarch64_sve (const char *, const char *, size_t); # endif +# if __ARM_FEATURE_MEMORY_TAGGING +void *__mtag_tag_region (void *, size_t); +# endif #elif __arm__ void *__memcpy_arm (void *__restrict, const void *__restrict, size_t); void *__memset_arm (void *, int, size_t); |