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musl - an implementation of the standard library for Linux-based systems
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0705fe9356
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Rich Felker 0705fe9356 clock_gettime: add support for 32-bit vdso with 64-bit time_t 
this fixes a major upcoming performance regression introduced by
commit 72f50245d0, whereby 32-bit archs
would lose vdso clock_gettime after switching to 64-bit time_t, unless
the kernel supports time64 and provides a time64 version of the vdso
function. this would incur not just one but two syscalls: first, the
failed time64 syscall, then the fallback time32 one.

overflow of the 32-bit result is detected and triggers a revert to
syscalls. normally, on a system that's not Y2038-ready, this would
still overflow, but if the process has been migrated to a
time64-capable kernel or if the kernel has been hot-patched to add
time64 syscalls, it may conceivably work.
2019-08-02 14:04:45 -04:00
arch move IPC_STAT definition to a new bits/ipcstat.h file 2019-08-02 00:08:23 -04:00
crt remove unnecessary and problematic _Noreturn from crt/ldso startup 2019-06-25 19:05:40 -04:00
dist
include move IPC_STAT definition to a new bits/ipcstat.h file 2019-08-02 00:08:23 -04:00
ldso fix inadvertent use of uninitialized variable in dladdr 2019-07-06 17:47:43 -04:00
src clock_gettime: add support for 32-bit vdso with 64-bit time_t 2019-08-02 14:04:45 -04:00
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 configure: make AR and RANLIB customizable 2019-07-04 12:03:18 -04:00
COPYRIGHT update year in COPYRIGHT file 2019-07-15 18:28:43 -04:00
dynamic.list fix regression in access to optopt object 2018-11-19 13:20:41 -05:00
INSTALL mention mips64 n32 ABI support in INSTALL doc 2019-07-09 18:40:50 -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 1.1.23 2019-07-16 15:30:39 -04:00
WHATSNEW release 1.1.23 2019-07-16 15:30:39 -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/