riscv/musl - musl - Gitea: Git with a cup of tea

Commit Graph

Author	SHA1	Message	Date
Rich Felker	f16a3089be	completely new barrier implementation, addressing major correctness issues the previous implementation had at least 2 problems: 1. the case where additional threads reached the barrier before the first wave was finished leaving the barrier was untested and seemed not to be working. 2. threads leaving the barrier continued to access memory within the barrier object after other threads had successfully returned from pthread_barrier_wait. this could lead to memory corruption or crashes if the barrier object had automatic storage in one of the waiting threads and went out of scope before all threads finished returning, or if one thread unmapped the memory in which the barrier object lived. the new implementation avoids both problems by making the barrier state essentially local to the first thread which enters the barrier wait, and forces that thread to be the last to return.	15 years ago
Rich Felker	202911435b	add SA_NOMASK alias for SA_NODEFER with _GNU_SOURCE	15 years ago
Rich Felker	78c808b126	fix fclose return status logic, again the previous fix was incorrect, as it would prevent f->close(f) from being called if fflush(f) failed. i believe this was the original motivation for using \| rather than \|\|. so now let's just use a second statement to constrain the order of function calls, and to back to using \|.	15 years ago
Rich Felker	bd67467325	fix undefined call order in fclose, possible lost output depending on compiler pcc turned up this bug by calling f->close(f) before fflush(f), resulting in lost output and error on flush.	15 years ago
Rich Felker	a9be201cc0	workaround for preprocessor bug in pcc with this patch, musl compiles and mostly works with pcc 1.0.0. a few tests are still failing and i'm uncertain whether they are due to portability problems in musl, or bugs in pcc, but i suspect the latter.	15 years ago
Rich Felker	d02c50d6a3	minor optimization in puts: use inline putc_unlocked macro for newline	15 years ago
Rich Felker	1477a3be62	avoid crashing when nel==0 is passed to qsort	15 years ago
Rich Felker	def0af1898	use compiler builtins for variadic macros when available this slightly cuts down on the degree musl "fights with" gcc, but more importantly, it fixes a critical bug when gcc inlines a variadic function and optimizes out the variadic arguments due to noticing that they were "not used" (by __builtin_va_arg). we leave the old code in place if __GNUC__ >= 3 is false; it seems like it might be necessary at least for tinycc support and perhaps if anyone ever gets around to fixing gcc 2.95.3 enough to make it work..	15 years ago
Rich Felker	e6bac87d0e	correct variadic prototypes for execl* family the old versions worked, but conflicted with programs which declared their own prototypes and generated warnings with some versions of gcc.	15 years ago
Rich Felker	22263709ed	replace heap sort with smoothsort implementation by Valentin Ochs Smoothsort is an adaptive variant of heapsort. This version was written by Valentin Ochs (apo) specifically for inclusion in musl. I worked with him to get it working in O(1) memory usage even with giant array element widths, and to optimize it heavily for size and speed. It's still roughly 4 times as large as the old heap sort implementation, but roughly 20 times faster given an almost-sorted array of 1M elements (20 being the base-2 log of 1M), i.e. it really does reduce O(n log n) to O(n) in the mostly-sorted case. It's still somewhat slower than glibc's Introsort for random input, but now considerably faster than glibc when the input is already sorted, or mostly sorted.	15 years ago
Rich Felker	4bb9b4f3b4	add word-sized ctz function to atomic.h strictly speaking this and a few other ops should be factored into asm.h or the file should just be renamed to asm.h, but whatever. clean it up someday.	15 years ago
Rich Felker	b5b41212a6	function signature fix: add const qualifier to mempcpy src arg	15 years ago
Rich Felker	32e2c468ba	typo in prototype for mempcpy	15 years ago
Rich Felker	d179807f6b	prototype for mempcpy	15 years ago
Rich Felker	3486365e95	fix bug in ipv6 parsing that prevented parsing a lone "::"	15 years ago
Rich Felker	34d81974d3	ipv6 parsing code (formerly dummied-out)	15 years ago
Rich Felker	5efc6af4eb	fix 2 eof-related bugs in scanf 1. failed match of literal chars from the format string would always return matching failure rather than input failure at eof, leading to infinite loops in some programs. 2. unread of eof would wrongly adjust the character counts reported by %n, yielding an off-by-one error.	15 years ago
Rich Felker	db9915ee97	update release notes to new format, add more	15 years ago
Rich Felker	e6cc1d6c0e	fix initial stack alignment in new threads on x86_64	15 years ago
Rich Felker	cbb65af6ae	update release notes in prep for 0.7.9 release	15 years ago
Rich Felker	d878dcecca	omit errno update path for syscalls that cannot fail	15 years ago
Rich Felker	31f014e0a7	fix bogus return values for inet_pton	15 years ago
Rich Felker	4b5f054098	move wait.h macros out of bits. they do not vary.	15 years ago
Rich Felker	f492c95401	include signal.h to avoid thorny __sigcontext/sigcontext issues this is explicitly allowed by POSIX	15 years ago
Rich Felker	870cc67977	fix minor bugs due to incorrect threaded-predicate semantics some functions that should have been testing whether pthread_self() had been called and initialized the thread pointer were instead testing whether pthread_create() had been called and actually made the program "threaded". while it's unlikely any mismatch would occur in real-world problems, this could have introduced subtle bugs. now, we store the address of the main thread's thread descriptor in the libc structure and use its presence as a flag that the thread register is initialized. note that after fork, the calling thread (not necessarily the original main thread) is the new main thread.	15 years ago
Rich Felker	f9a6372a98	workaround bug in linux dup2 the linux documentation for dup2 says it can fail with EBUSY due to a race condition with open and dup in the kernel. shield applications (and the rest of libc) from this nonsense by looping until it succeeds	15 years ago
Rich Felker	10d7561db5	properly create new session/controlling terminal in forkpty	15 years ago
Rich Felker	4921ce0867	implement (nonstandard) forkpty	15 years ago
Rich Felker	f1ac8a28d8	disallow blank strings as service or host name	15 years ago
Rich Felker	d4b5d6e981	fix bugs in ipv4 parsing	15 years ago
Rich Felker	29a15ad077	fix initgroups (uninitialized count passed to getgrouplist)	15 years ago
Rich Felker	18bca57510	shadow password fixes: empty fields should read as -1 not 0	15 years ago
Rich Felker	b052f13cd1	namespace fixes for sys/mman.h	15 years ago
Rich Felker	53ab4e793b	fix missing include in posix_madvise.c (compile error)	15 years ago
Rich Felker	2357350924	support posix_madvise (previous a stub) the check against MADV_DONTNEED to because linux MADV_DONTNEED semantics conflict dangerously with the POSIX semantics	15 years ago
Rich Felker	1c76683cb4	add syscall wrappers for posix_fadvise, posix_fallocate	15 years ago
Rich Felker	145c05345d	block cancellation in wordexp, handle more errors	15 years ago
Rich Felker	f0fc95d439	avoid malloc of potentially-large string in wordexp	15 years ago
Rich Felker	a6054e3c94	move some more code out of pthread_create.c this also de-uglifies the dummy function aliasing a bit.	15 years ago
Rich Felker	4f24994920	fix uninitialized waiters field in semaphores	15 years ago
Rich Felker	43ee4df338	dns lookups: protect against cancellation and fix incorrect error codes	15 years ago
Rich Felker	75a0be1f65	avoid fd leak if opendir is cancelled when calloc has failed	15 years ago
Rich Felker	df9e11bb06	protect ftw and nftw against cancellation	15 years ago
Rich Felker	d2c604d5a4	protect syslog against cancellation these functions are allowed to be cancellation points, but then we would have to install cleanup handlers to avoid termination with locks held.	15 years ago
Rich Felker	be2e06d347	recheck cancellation disabled flag after syscall returns EINTR we already checked before making the syscall, but it's possible that a signal handler interrupted the blocking syscall and disabled cancellation, and that this is the cause of EINTR. in this case, the old behavior was testably wrong.	15 years ago
Rich Felker	61b56a8d21	remove bogus extra logic for close cancellability like all other syscalls, close should return to the caller if and only if it successfully performed its action. it is necessary that the application be able to determine whether the close succeeded.	15 years ago
Rich Felker	1bc44a4734	fix typo in x86_64 cancellable syscall asm	15 years ago
Rich Felker	e98bdca9df	minimal realpath implementation using /proc clean and simple, but fails when the caller does not have permissions to open the file for reading or when /proc is not available. i may replace this with a full implementation later, possibly leaving this version as an optimization to use when it works.	15 years ago
Rich Felker	2afed79f15	pthread_exit is not supposed to affect cancellability if the exit was caused by cancellation, __cancel has already set these flags anyway.	15 years ago
Rich Felker	1ebde9c3a2	fix pthread_exit from cancellation handler cancellation frames were not correctly popped, so this usage would not only loop, but also reuse discarded and invalid parts of the stack.	15 years ago

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585 Commits (07827d1a82fb33262f686eda959857f0d28cd8fa) All Branches Search

585 Commits (07827d1a82fb33262f686eda959857f0d28cd8fa)

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