Fork of glibc for development https://git.zx2c4.com/glibc/atom/io/close_range.c?h=vdso 2024-01-01T18:53:40Z 2024-01-01T18:53:40Z Paul Eggert eggert@cs.ucla.edu 2024-01-01T18:12:26Z urn:sha1:dff8da6b3e89b986bb7f6b1ec18cf65d5972e307 2023-01-06T21:14:39Z Joseph Myers joseph@codesourcery.com 2023-01-06T21:08:04Z urn:sha1:6d7e8eda9b85b08f207a6dc6f187e94e4817270f 2022-01-01T19:40:24Z Paul Eggert eggert@cs.ucla.edu 2022-01-01T18:54:23Z urn:sha1:581c785bf31bc74430320c7856bbfa3875d025fe I used these shell commands: ../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright (cd ../glibc && git commit -am"[this commit message]") and then ignored the output, which consisted lines saying "FOO: warning: copyright statement not found" for each of 7061 files FOO. I then removed trailing white space from math/tgmath.h, support/tst-support-open-dev-null-range.c, and sysdeps/x86_64/multiarch/strlen-vec.S, to work around the following obscure pre-commit check failure diagnostics from Savannah. I don't know why I run into these diagnostics whereas others evidently do not. remote: *** 912-#endif remote: *** 913: remote: *** 914- remote: *** error: lines with trailing whitespace found ... remote: *** error: sysdeps/unix/sysv/linux/statx_cp.c: trailing lines 2021-11-24T12:09:37Z Adhemerval Zanella adhemerval.zanella@linaro.org 2021-11-08T13:20:23Z urn:sha1:456b3c08b6fe78938af5d12b6869dc8c704696d6 Now that Hurd implementis both close_range and closefrom (f2c996597d), we can make close_range() a base ABI, and make the default closefrom() implementation on top of close_range(). The generic closefrom() implementation based on __getdtablesize() is moved to generic close_range(). On Linux it will be overriden by the auto-generation syscall while on Hurd it will be a system specific implementation. The closefrom() now calls close_range() and __closefrom_fallback(). Since on Hurd close_range() does not fail, __closefrom_fallback() is an empty static inline function set by__ASSUME_CLOSE_RANGE. The __ASSUME_CLOSE_RANGE also allows optimize Linux __closefrom_fallback() implementation when --enable-kernel=5.9 or higher is used. Finally the Linux specific tst-close_range.c is moved to io and enabled as default. The Linuxism and CLOSE_RANGE_UNSHARE are guarded so it can be built for Hurd (I have not actually test it). Checked on x86_64-linux-gnu, i686-linux-gnu, and with a i686-gnu build.