musl - an implementation of the standard library for Linux-based systems
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Rich Felker 09dae2b7b6 fix bugs in cancellable syscall asm
x86_64 was just plain wrong in the cancel-flag-already-set path, and
crashing.

the more subtle error was not clearing the saved stack pointer before
returning to c code. this could result in the signal handler
misidentifying c code as the pre-syscall part of the asm, and acting
on cancellation at the wrong time, and thus resource leak race
conditions.

also, now __cancel (in the c code) is responsible for clearing the
saved sp in the already-cancelled branch. this means we have to use
call rather than jmp to ensure the stack pointer in the c will never
match what the asm saved.
2011-04-17 15:30:08 -04:00
arch overhaul pthread cancellation 2011-04-17 11:43:03 -04:00
crt cleanup comment cruft in startup code 2011-02-21 22:27:35 -05:00
dist remove -Wno-pointer-sign example from dist/config.mak 2011-03-25 16:50:49 -04:00
include fix O_SYNC definition, cleanup fcntl.h 2011-04-14 22:06:30 -04:00
lib new solution for empty lib dir (old one had some problems) 2011-02-17 17:12:52 -05:00
src fix bugs in cancellable syscall asm 2011-04-17 15:30:08 -04:00
tools use -L/...../ -lgcc instead of /...../libgcc.a in musl-gcc wrapper 2011-03-01 12:04:36 -05:00
COPYING
COPYRIGHT some docs fixes for x86_64 2011-02-15 14:52:11 -05:00
INSTALL some docs fixes for x86_64 2011-02-15 14:52:11 -05:00
Makefile various changes in preparation for dynamic linking support 2011-02-24 16:37:21 -05:00
README update README since we now DO have a mailing list 2011-04-11 00:10:26 -04:00
WHATSNEW document some changes in the upcoming release 2011-04-14 23:33:46 -04:00

README

musl libc - a new standard library to power a new generation of
Linux-based devices. musl is lightweight, fast, simple, free, and
strives to be correct in the sense of standards-conformance and
safety.

musl is an alternative to glibc, eglibc, uClibc, dietlibc, and klibc.
For reasons why one might prefer musl, please see the FAQ and libc
comparison chart on the project website,

    http://www.etalabs.net/musl/

For installation instructions, see the INSTALL file.

Please refer to the COPYRIGHT file for details on the copyright status
of code included in musl, and the COPYING file for the license (LGPL)
under which the library as a whole is distributed.



Greetings libc hackers!

This package is an _alpha_ release of musl, intended for the curious
and the adventurous. While it can be used to build a complete small
Linux system (musl is self-hosted on the system I use to develop it),
at this point doing so requires a lot of manual effort. Nonetheless, I
hope low-level Linux enthusiasts will try out building some compact
static binaries with musl using the provided gcc wrapper (which allows
you to link programs with musl on a "standard" glibc Linux system),
find whatever embarassing bugs I've let slip through, and provide
feedback on issues encountered building various software against musl.

For bug reports, support requests, or to get involved in development,
please visit #musl on Freenode IRC or subscribe to the musl mailing
list by sending a blank email to musl-subscribe AT lists DOT openwall
DOT com.

Thank you for trying out musl.

Cheers,

Rich Felker / dalias