posix: use posix_time.h and posix_signal.h #95226
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It looks like #95285 is causing the build failure in twister-build (1). |
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The failure in twister build (7) is the result of interdependency between current https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/signal.h.html I'll see if I can remove that interdependency in a separate PR. If it is not possible, then the signal.h changes will be added to this PR. |
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Sep 10, 2025
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Create a header for satisfying POSIX conformance requirements of signal.h that is named posix_signal.h rather than signal.h. The primary reason for doing so, is that the de-facto owner of signal.h is the C library. This new header only defines required POSIX symbols that form a strict superset over the ISO C signal.h symbols. Signed-off-by: Chris Friedt <cfriedt@tenstorrent.com>
To avoid conflicts between the C library's `time.h` and signal.h use an "override" header (when necessary) for C libraries that do not themselves provide POSIX definitions in `time.h` or `signal.h`. Signed-off-by: Chris Friedt <cfriedt@tenstorrent.com>
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@stephanosio - this should basically be ready for you to review. Only minor changes since the last revision. |
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jhedberg
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Sep 18, 2025
fabiobaltieri
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ycsin
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@stephanosio - are you able to review? If not, is it ok if I reassign to e.g. Keith or someone else? |
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Just adding the |
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And, oddly, adding the dev-review label causes CI to fail 😅 . Hopefully, removing it will help. |
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Self-assigning this, since it
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Zephyr's POSIX time support has been updated (PR #95226) to provide a new header <zephyr/posix/posix_time.h>. This change ensures that <time.h> can be included safely, even when a libc previously provided its own conflicting version. To maintain compatibility before and after the PR, this patch uses __has_include to prefer <time.h> when <zephyr/posix/posix_time.h> is available, and falls back to <zephyr/posix/time.h> otherwise. This prevents build errors caused by incompatible or incomplete <time.h> implementations in some environments. References: – zephyrproject-rtos/zephyr#95226 – zephyrproject-rtos/zephyr#96911 – https://gcc.gnu.org/onlinedocs/cpp/_005f_005fhas_005finclude.html Signed-off-by: Yasushi SHOJI <yashi@spacecubics.com>
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Zephyr's POSIX time support has been updated (PR #95226) to provide a new header <zephyr/posix/posix_time.h>. This change ensures that <time.h> can be included safely, even when a libc previously provided its own conflicting version. To maintain compatibility before and after the PR, this patch uses __has_include to prefer <time.h> when <zephyr/posix/posix_time.h> is available, and falls back to <zephyr/posix/time.h> otherwise. This prevents build errors caused by incompatible or incomplete <time.h> implementations in some environments. References: – zephyrproject-rtos/zephyr#95226 – zephyrproject-rtos/zephyr#96911 – https://gcc.gnu.org/onlinedocs/cpp/_005f_005fhas_005finclude.html Signed-off-by: Yasushi SHOJI <yashi@spacecubics.com>
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To avoid conflicts between the C library's
time.handsignal.huse an "override" header (when necessary) for C libraries that do not themselves provide POSIX definitions intime.horsignal.h.In order to achieve that, provide
posix_time.handposix_signal.hthat define only the POSIX symbols that are not defined by ISO C.https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/time.h.html
https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/signal.h.html
Required by #88547