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musl - an implementation of the standard library for Linux-based systems
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21a172dd36
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Rich Felker 21a172dd36 make sem_wait and sem_timedwait interruptible by signals 
this reverts commit c0ed5a201b, 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 commit a63c0104e4, 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.
2018-12-19 19:32:41 -05:00
arch add io_pgetevents and rseq syscall numbers from linux v4.18 2018-12-09 22:29:12 -05:00
crt define and use internal macros for hidden visibility, weak refs 2018-09-05 14:05:14 -04:00
dist add another example option to dist/config.mak 2012-04-24 16:49:11 -04:00
include add NT_VMCOREDD to elf.h from linux v4.18 2018-12-09 22:30:05 -05:00
ldso add new stage 2b to dynamic linker bootstrap for thread pointer 2018-10-16 13:50:28 -04:00
src make sem_wait and sem_timedwait interruptible by signals 2018-12-19 19:32:41 -05:00
tools fix musl-gcc wrapper to be compatible with default-pie gcc toolchains 2018-08-02 19:15:48 -04:00
.gitignore remove obsolete gitignore rules 2016-07-06 00:21:25 -04:00
configure support clang internal assembler when building for arm as thumb2 code 2018-09-19 01:31:26 -04:00
COPYRIGHT new tsearch implementation 2018-09-20 17:57:47 -04:00
dynamic.list fix regression in access to optopt object 2018-11-19 13:20:41 -05:00
INSTALL add powerpc64 and s390x to list of supported archs in INSTALL file 2017-08-29 20:48:02 -04:00
Makefile overhaul internally-public declarations using wrapper headers 2018-09-12 14:34:33 -04:00
README update version reference in the README file 2014-06-25 14:16:53 -04:00
VERSION release 1.1.20 2018-09-04 13:17:19 -04:00
WHATSNEW fix mistake/cruft in 1.1.20 release notes 2018-09-04 19:27:15 -04:00

README 

    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/