musl - an implementation of the standard library for Linux-based systems
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Rich Felker 61b1e75f7d overhaul sh atomics for new atomics framework, add j-core cas.l backend
sh needs runtime-selected atomic backends since there are a number of
supported models that use non-forwards-compatible (non-smp-compatible)
atomic mechanisms. previously, the code paths for this were highly
inefficient since they involved C function calls with multiple
branches in the callee and heavy spills in the caller. the new code
performs calls the runtime-selected asm fragment from inline asm with
extremely minimal clobbers, rather than using a function call.

for the sh4a case where the atomic mechanism is known and there is no
forward-compatibility issue, the movli.l and movco.l instructions are
provided as a_ll and a_sc, allowing the new shared atomic.h to
generate efficient inline versions of all the basic atomic operations
without needing a cas loop.
2016-01-21 19:43:04 +00:00
arch overhaul sh atomics for new atomics framework, add j-core cas.l backend 2016-01-21 19:43:04 +00:00
crt explicitly assemble all arm asm sources as UAL 2015-11-10 00:01:55 -05:00
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include netinet/tcp: Add TCPOPT, TCPOLEN constants 2016-01-17 17:37:36 -05:00
src overhaul sh atomics for new atomics framework, add j-core cas.l backend 2016-01-21 19:43:04 +00:00
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INSTALL update notice on broken gcc versions in INSTALL file 2014-07-31 19:02:54 -04:00
Makefile simplify "make clean" and remove unneeded lib dir from tree 2016-01-20 04:01:05 +00:00
README update version reference in the README file 2014-06-25 14:16:53 -04:00
VERSION release 1.1.12 2015-10-19 19:12:57 -04:00
WHATSNEW release 1.1.12 2015-10-19 19:12:57 -04:00
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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/