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musl - an implementation of the standard library for Linux-based systems
d26e0774a5
the __vm_wait operation can delay forward progress arbitrarily long if a thread holding the lock is interrupted by a signal. in a worst case this can deadlock. any critical section holding the thread list lock must respect lock ordering contracts and must not take any lock which is not AS-safe. to fix, move the determination of thread joinable/detached state to take place before the killlock and thread list lock are taken. this requires reverting the atomic state transition if we determine that the exiting thread is the last thread and must call exit, but that's easy to do since it's a single-threaded context with application signals blocked. |
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| .gitignore | ||
| .mailmap | ||
| configure | ||
| COPYRIGHT | ||
| dynamic.list | ||
| INSTALL | ||
| Makefile | ||
| README | ||
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| WHATSNEW | ||
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/