Rich Felker
21a172dd36
this reverts commitc0ed5a201b, which was based on a mistaken reading of POSIX due to inconsistency between the description (which requires return upon interruption by a signal) and the errors list (which wrongly lists EINTR as "may fail"). since the previously-introduced behavior was a workaround for an old kernel bug to ensure safety of correct programs that were not hardened against the bug, an effort has been made to preserve it for programs which do not use interrupting signal handlers. the stage for this was set in commita63c0104e4, which makes the futex __timedwait backend suppress EINTR if it's seen when no interrupting signal handlers have been installed. based loosely on a patch submitted by Orivej Desh, but with unnecessary additional changes removed.
musl libc
musl, pronounced like the word "mussel", is an MIT-licensed
implementation of the standard C library targetting the Linux syscall
API, suitable for use in a wide range of deployment environments. musl
offers efficient static and dynamic linking support, lightweight code
and low runtime overhead, strong fail-safe guarantees under correct
usage, and correctness in the sense of standards conformance and
safety. musl is built on the principle that these goals are best
achieved through simple code that is easy to understand and maintain.
The 1.1 release series for musl features coverage for all interfaces
defined in ISO C99 and POSIX 2008 base, along with a number of
non-standardized interfaces for compatibility with Linux, BSD, and
glibc functionality.
For basic installation instructions, see the included INSTALL file.
Information on full musl-targeted compiler toolchains, system
bootstrapping, and Linux distributions built on musl can be found on
the project website:
http://www.musl-libc.org/