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musl - an implementation of the standard library for Linux-based systems
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Rich Felker 92637bb0d8 prevent reordering of or1k and powerpc thread pointer loads 
other archs use asm for the thread pointer load, so making that asm
volatile is sufficient to inform the compiler that it has a "side
effect" (crashing or giving the wrong result if the thread pointer was
not yet initialized) that prevents reordering. however, powerpc and
or1k have dedicated general purpose registers for the thread pointer
and did not need to use any asm to access it; instead, "local register
variables with a specified register" were used. however, there is no
specification for ordering constraints on this type of usage, and
presumably use of the thread pointer could be reordered across its
initialization.

to impose an ordering, I have added empty volatile asm blocks that
produce the "local register variable with a specified register" as
an output constraint.
2015-10-15 12:08:51 -04:00
arch prevent reordering of or1k and powerpc thread pointer loads 2015-10-15 12:08:51 -04:00
crt remove hand-written crt1.s and Scrt1.s files for all archs 2015-10-14 17:08:34 -04:00
dist add another example option to dist/config.mak 2012-04-24 16:49:11 -04:00
include remove attribute((const)) from pthread_self and errno location decls 2015-09-17 04:45:01 +00:00
lib new solution for empty lib dir (old one had some problems) 2011-02-17 17:12:52 -05:00
src fix strftime handling of out-of-range struct tm fields 2015-10-14 18:58:15 -04:00
tools add CFI generation script for x86_64 2015-10-13 18:09:46 -04:00
.gitignore add musl-clang, a wrapper for system clang installs 2015-07-06 23:52:16 +00:00
configure eliminate protected-visibility data in libc.so with vis.h preinclude 2015-09-29 02:44:05 +00:00
COPYRIGHT update authors/contributors list 2015-03-16 18:43:54 -04:00
INSTALL update notice on broken gcc versions in INSTALL file 2014-07-31 19:02:54 -04:00
Makefile factor common awk functions for CFI generation scripts into new file 2015-10-08 21:03:10 +00:00
README update version reference in the README file 2014-06-25 14:16:53 -04:00
VERSION release 1.1.11 2015-08-30 04:15:56 +00:00
WHATSNEW release 1.1.11 2015-08-30 04:15:56 +00:00

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/