musl - musl - an implementation of the standard library for Linux-based systems

Age	Commit message (Collapse)	Author	Lines
2012-11-08	clean up sloppy nested inclusion from pthread_impl.h	Rich Felker	-0/+1
	this mirrors the stdio_impl.h cleanup. one header which is not strictly needed, errno.h, is left in pthread_impl.h, because since pthread functions return their error codes rather than using errno, nearly every single pthread function needs the errno constants. in a few places, rather than bringing in string.h to use memset, the memset was replaced by direct assignment. this seems to generate much better code anyway, and makes many functions which were previously non-leaf functions into leaf functions (possibly eliminating a great deal of bloat on some platforms where non-leaf functions require ugly prologue and/or epilogue).
2012-10-11	avoid the thread-ptr-init behavior of sigaction when not installing handler	Rich Felker	-1/+2
	this is necessary because posix_spawn calls sigaction after vfork, and if the thread pointer is not already initialized, initializing it in the child corrupts the parent process's state.
2012-09-06	use restrict everywhere it's required by c99 and/or posix 2008	Rich Felker	-2/+2
	to deal with the fact that the public headers may be used with pre-c99 compilers, __restrict is used in place of restrict, and defined appropriately for any supported compiler. we also avoid the form [restrict] since older versions of gcc rejected it due to a bug in the original c99 standard, and instead use the form *restrict.
2012-07-11	remove unused var in new sigaction code	Rich Felker	-1/+1

2012-07-11	changes to kernel sigaction struct handling in preparation for mips port	Rich Felker	-14/+7

2012-02-27	work around "signal loses thread pointer" issue with "approach 2"	Rich Felker	-0/+5
	this was discussed on the mailing list and no consensus on the preferred solution was reached, so in anticipation of a release, i'm just committing a minimally-invasive solution that avoids the problem by ensuring that multi-threaded-capable programs will always have initialized the thread pointer before any signal handler can run. in the long term we may switch to initializing the thread pointer at program start time whenever the program has the potential to access any per-thread data.
2011-05-07	overhaul implementation-internal signal protections	Rich Felker	-1/+1
	the new approach relies on the fact that the only ways to create sigset_t objects without invoking UB are to use the sigset() functions, or from the masks returned by sigprocmask, sigaction, etc. or in the ucontext_t argument to a signal handler. thus, as long as sigfillset and sigaddset avoid adding the "protected" signals, there is no way the application will ever obtain a sigset_t including these bits, and thus no need to add the overhead of checking/clearing them when sigprocmask or sigaction is called. note that the old code actually failed* to remove the bits from sa_mask when sigaction was called. the new implementations are also significantly smaller, simpler, and faster due to ignoring the useless "GNU HURD signals" 65-1024, which are not used and, if there's any sanity in the world, never will be used.
2011-04-14	use a separate signal from SIGCANCEL for SIGEV_THREAD timers	Rich Felker	-1/+1
	otherwise we cannot support an application's desire to use asynchronous cancellation within the callback function. this change also slightly debloats pthread_create.c.
2011-03-20	global cleanup to use the new syscall interface	Rich Felker	-1/+1

2011-02-13	fix previous commit that broke sigreturn. looks like the asm is needed.	Rich Felker	-5/+2

2011-02-13	fix omission that kept sa_restorer from being used	Rich Felker	-1/+1

2011-02-12	initial check-in, version 0.5.0v0.5.0	Rich Felker	-0/+48