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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-18 02:49:50 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-18 02:49:50 +0000 |
| commit | 9835e2ae736235810b4ea1c162ca5e65c547e770 (patch) | |
| tree | 3fcebf40ed70e581d776a8a4c65923e8ec20e026 /library/stdarch/crates/std_detect/README.md | |
| parent | Releasing progress-linux version 1.70.0+dfsg2-1~progress7.99u1. (diff) | |
| download | rustc-9835e2ae736235810b4ea1c162ca5e65c547e770.tar.xz rustc-9835e2ae736235810b4ea1c162ca5e65c547e770.zip | |
Merging upstream version 1.71.1+dfsg1.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'library/stdarch/crates/std_detect/README.md')
| -rw-r--r-- | library/stdarch/crates/std_detect/README.md | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/library/stdarch/crates/std_detect/README.md b/library/stdarch/crates/std_detect/README.md index 71f474d65..521177104 100644 --- a/library/stdarch/crates/std_detect/README.md +++ b/library/stdarch/crates/std_detect/README.md @@ -30,14 +30,19 @@ run-time feature detection. When this feature is disabled, `std_detect` assumes that [`getauxval`] is linked to the binary. If that is not the case the behavior is undefined. - Note: This feature is ignored on `*-linux-gnu*` targets, since all `*-linux-gnu*` targets ([since Rust 1.64](https://blog.rust-lang.org/2022/08/01/Increasing-glibc-kernel-requirements.html)) have glibc requirements higher than [glibc 2.16 that added `getauxval`](https://sourceware.org/legacy-ml/libc-announce/2012/msg00000.html), and we can safely assume [`getauxval`] is linked to the binary. + Note: This feature is ignored on `*-linux-gnu*` and `*-android*` targets + because we can safely assume `getauxval` is linked to the binary. + * `*-linux-gnu*` targets ([since Rust 1.64](https://blog.rust-lang.org/2022/08/01/Increasing-glibc-kernel-requirements.html)) + have glibc requirements higher than [glibc 2.16 that added `getauxval`](https://sourceware.org/legacy-ml/libc-announce/2012/msg00000.html). + * `*-android*` targets ([since Rust 1.68](https://blog.rust-lang.org/2023/01/09/android-ndk-update-r25.html)) + have the minimum supported API level higher than [Android 4.3 (API level 18) that added `getauxval`](https://github.com/aosp-mirror/platform_bionic/blob/d3ebc2f7c49a9893b114124d4a6b315f3a328764/libc/include/sys/auxv.h#L49). * `std_detect_file_io` (enabled by default, requires `std`): Enable to perform run-time feature detection using file APIs (e.g. `/proc/cpuinfo`, etc.) if other more performant methods fail. This feature requires `libstd` as a dependency, preventing the crate from working on applications in which `std` is not available. -[`getauxval`]: http://man7.org/linux/man-pages/man3/getauxval.3.html +[`getauxval`]: https://man7.org/linux/man-pages/man3/getauxval.3.html # Platform support |