FreeBSD crc32 cap detection for arm64 #4922
Closed
Conversation
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
iluuu1994
requested changes
Dec 15, 2022
| # if defined(HWCAP_CRC32) | ||
| zend_long crc32 = 0; | ||
| if (elf_aux_info(AT_HWCAP, &crc32, sizeof(crc32)) == 0) | ||
| res = crc32 & HWCAP_CRC32; |
There was a problem hiding this comment.
res isn't returned here. This will only work on the second run.
There was a problem hiding this comment.
ah I forgot about this one but a lot had changed since and it s an useless change now, FreeBSD uses a wrapper to be closer to Linux.
| # endif | ||
|
|
||
| static inline int has_crc32_insn() { | ||
| /* Only go through the runtime detection once. */ | ||
| static int res = -1; | ||
| if (res != -1) | ||
| return res; | ||
| # if defined(__linux__) | ||
| # if defined(HWCAP_CRC32) |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
No description provided.