musl - The musl libc tree (WIP / dev branches)

Age	Commit message (Collapse)	Author	Files	Lines
2011-03-19	remove comment cruft that got left behind in x86_64 syscall.s	Rich Felker	1	-1/+0

2011-03-19	add some ioctl stuff to sys/mount.h	Rich Felker	1	-0/+18

2011-03-19	overhaul syscall interface	Rich Felker	11	-749/+1577
	this commit shuffles around the location of syscall definitions so that we can make a syscall() library function with both SYS_* and __NR_* style syscall names available to user applications, provides the syscall() library function, and optimizes the code that performs the actual inline syscalls in the library itself. previously on i386 when built as PIC (shared library), syscalls were incurring bus lock (lock prefix) overhead at entry and exit, due to the way the ebx register was being loaded (xchg instruction with a memory operand). now the xchg takes place between two registers. further cleanup to arch/$(ARCH)/syscall.h is planned.
2011-03-18	some linux headers useful from user apps.	Rich Felker	3	-0/+550
	i'm still not sure whether it's a good idea to include or use any of these, but i'll add them for now. it may make more sense to just add official kernel headers to the include path for compiling programs that need them.
2011-03-18	various legacy and linux-specific stuff	Rich Felker	7	-1/+122
	this commit is part of an effort to make more of busybox work out-of-the-box.
2011-03-18	document changes for 0.7.1v0.7.1	Rich Felker	1	-0/+9

2011-03-18	implement [v]swprintf	Rich Felker	4	-3/+63

2011-03-17	implement wprintf family of functions	Rich Felker	4	-0/+387
	this implementation is extremely ugly and inefficient, but it avoids a good deal of code duplication and bloat. it may be cleaned up later to eliminate the remaining code duplication and some of the warts, but i don't really care about its performance. note that swprintf is not yet implemented.
2011-03-17	fix broken wmemchr (unbounded search)	Rich Felker	1	-1/+1

2011-03-17	implement robust mutexes	Rich Felker	10	-10/+84
	some of this code should be cleaned up, e.g. using macros for some of the bit flags, masks, etc. nonetheless, the code is believed to be working and correct at this point.
2011-03-17	avoid function call to pthread_self in mutex unlock	Rich Felker	1	-1/+1
	if the mutex was previously locked, we can assume pthread_self was already called at the time of locking, and thus that the thread pointer is initialized.
2011-03-17	reorder mutex struct fields to make room for pointers (upcoming robust mutexes)	Rich Felker	1	-1/+3
	the layout has been chosen so that pointer slots 3 and 4 fit between the integer slots on 32-bit archs, and come after the integer slots on 64-bit archs.
2011-03-17	unify lock and owner fields of mutex structure	Rich Felker	4	-8/+6
	this change is necessary to free up one slot in the mutex structure so that we can use doubly-linked lists in the implementation of robust mutexes.
2011-03-17	optimize contended normal mutex case; add int compare-and-swap atomic	Rich Felker	3	-1/+15

2011-03-16	simplify logic, slightly optimize contended case for non-default mutex types	Rich Felker	1	-4/+2

2011-03-16	correct error returns for error-checking mutexes	Rich Felker	2	-2/+6

2011-03-16	cut out a syscall on thread creation in the case where guard size is 0	Rich Felker	1	-1/+1

2011-03-16	don't expose EAGAIN, etc. from timed futex wait to caller	Rich Felker	1	-1/+4

2011-03-16	optimize file locking: avoid cache-polluting writes to global storage	Rich Felker	2	-3/+5

2011-03-14	partially-written draft of fmemopen, still in #if 0	Rich Felker	1	-3/+48

2011-03-14	remove some old cruft from sys/types.h	Rich Felker	1	-1/+0

2011-03-12	misplaced & in times() made it fail to work, and clobber the stack	Rich Felker	1	-1/+1

2011-03-12	implement flockfile api, rework stdio locking	Rich Felker	9	-15/+66

2011-03-12	pthread.h needs clockid_t	Rich Felker	1	-0/+1
	actually it gets this from time.h if _POSIX_C_SOURCE or any other feature test macros are defined, but it breaks if they're not.
2011-03-11	document some additional important changesv0.7.0	Rich Felker	1	-1/+2

2011-03-11	update whatsnew file for release of 0.7.0	Rich Felker	1	-2/+4

2011-03-11	match dimensions so we can use all slots without invoking OOB-array-access	Rich Felker	2	-10/+10

2011-03-11	implement dummy pthread_attr_[gs]etschedparam functions	Rich Felker	2	-0/+14
	for some reason these functions are not shaded by the PS/TPS option in POSIX, so presumably they are mandatory, even though the functionality they offer is optional. for now, provide them in case any programs depend on their existence, but disallow any priority except the default.
2011-03-11	fix pthread_attr_* implementations to match corrected prototypes	Rich Felker	4	-4/+4

2011-03-11	fix missing ENOTSUP error code	Rich Felker	2	-0/+2

2011-03-11	missing const in some pthread_attr_* prototypes	Rich Felker	1	-8/+8

2011-03-11	formatting whatsnew file	Rich Felker	1	-0/+6

2011-03-11	list major changes in preparation for release	Rich Felker	1	-0/+23

2011-03-10	fix failure behavior of sem_open when sem does not exist	Rich Felker	1	-1/+5

2011-03-10	fix some semaphore wait semantics (race condition deadlock and error checking)	Rich Felker	2	-1/+7

2011-03-10	fix sem_open and sem_close to obey posix semantics	Rich Felker	4	-38/+86
	multiple opens of the same named semaphore must return the same pointer, and only the last close can unmap it. thus the ugly global state keeping track of mappings. the maximum number of distinct named semaphores that can be opened is limited sufficiently small that the linear searches take trivial time, especially compared to the syscall overhead of these functions.
2011-03-10	optimize pthread termination in the non-detached case	Rich Felker	2	-4/+16
	we can avoid blocking signals by simply using a flag to mark that the thread has exited and prevent it from getting counted in the rsyscall signal-pingpong. this restores the original pthread create/join throughput from before the sigprocmask call was added.
2011-03-10	fix errors in sigqueue (potential information leak, wrong behavior)	Rich Felker	1	-5/+7
	1. any padding in the siginfo struct was not necessarily zero-filled, so it might have contained private data off the caller's stack. 2. the uid and pid must be filled in from userspace. the previous rsyscall fix broke rsyscalls because the values were always incorrect.
2011-03-10	security fix: check that cancel/rsyscall signal was sent by the process itself	Rich Felker	1	-0/+3

2011-03-10	more cancellation points: tcdrain, clock_nanosleep	Rich Felker	2	-2/+12

2011-03-10	remove useless return value checks for functions that cannot fail	Rich Felker	1	-3/+2

2011-03-10	make sigsuspend a cancellation point	Rich Felker	1	-1/+6

2011-03-10	make sigtimedwait a cancellation point	Rich Felker	1	-0/+3

2011-03-10	don't fail with EINTR in sigtimedwait	Rich Felker	1	-6/+6
	POSIX allows either behavior, but sigwait is not allowed to fail with EINTR, so the retry loop would have to be in one or the other anyway.
2011-03-10	fix sigsuspend syscall	Rich Felker	1	-1/+1

2011-03-10	make sigaltstack work (missing macros in signal.h, error conditions)	Rich Felker	3	-1/+15

2011-03-10	fix errno behavior in clock_* functions	Rich Felker	3	-3/+0
	these functions are specified inconsistent in whether they're specified to return an error value, or return -1 and set errno. hopefully now they all match what POSIX requires.
2011-03-09	fix error handling for pthread_sigmask	Rich Felker	2	-1/+15
	it must return errno, not -1, and should reject invalud values for how.
2011-03-09	make fork properly initialize the main thread in the child process	Rich Felker	1	-0/+7

2011-03-09	optimize pthread initialization	Rich Felker	1	-2/+2
	the set_tid_address returns the tid (which is also the pid when called from the initial thread) so there is no need to make a separate syscall to get pid/tid.