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58aa5f45ed
pthread structure has been adjusted to match the glibc/GCC abi for where the canary is stored on i386 and x86_64. it will need variants for other archs to provide the added security of the canary's entropy, but even without that it still works as well as the old "minimal" ssp support. eventually such changes will be made anyway, since they are also needed for GCC/C11 thread-local storage support (not yet implemented). care is taken not to attempt initializing the thread pointer unless the program actually uses SSP (by reference to __stack_chk_fail). |
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WHATSNEW |
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! As of the 0.8.0 release, musl is in _beta_ status. While some interfaces remain incomplete or yet to be implemented, the ABI is intended to be stable at this point, and serious efforts have been made, using three separate test frameworks, to verify the correctness of the implementation. Many major system-level and user-level programs are known to work with musl, either out-of-the-box or with minor patches to address portability errors. Included with this package is a gcc wrapper script (musl-gcc) which allows you to build musl-linked programs using an existing gcc 4.x toolchain on the host. There are also now at least two mini distributions (in the form of build scripts) which provide a self-hosting musl-based toolchain and system root: Sabotage Linux and Bootstrap Linux. These are much better options than the wrapper script if you wish to use dynamic linking or build packages with many library dependencies. The musl project is actively seeking contributors, mostly in the areas of porting, testing, and application compatibility improvement. 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 using musl. Cheers, Rich Felker / dalias