mirror of git://git.musl-libc.org/musl
05cef96d9e
patch by Jens Gustedt. this fixes a bug reported by Nadav Har'El. the underlying issue was that a left-shift by 16 bits after promotion of unsigned short to int caused integer overflow. while some compilers define this overflow case as "shifting into the sign bit", doing so doesn't help; the sign bit then gets extended through the upper bits in subsequent arithmetic as unsigned long long. this patch imposes a promotion to unsigned prior to the shift, so that the result is well-defined and matches the specified behavior. |
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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/