| Commit message (Expand) | Author | Age | Files | Lines |
|---|
| * | use volatile pointers for intentional-crash code. | Rich Felker | 2011-06-06 | 2 | -3/+3 |
| * | fix handling of d_name in struct dirent•••basically there are 3 choices for how to implement this variable-size
string member:
1. C99 flexible array member: breaks using dirent.h with pre-C99 compiler.
2. old way: length-1 string: generates array bounds warnings in caller.
3. new way: length-NAME_MAX string. no problems, simplifies all code.
of course the usable part in the pointer returned by readdir might be
shorter than NAME_MAX+1 bytes, but that is allowed by the standard and
doesn't hurt anything.
| Rich Felker | 2011-06-06 | 3 | -8/+6 |
| * | safety fix for glob's vla usage: disallow patterns longer than PATH_MAX•••this actually inadvertently disallows some valid patterns with
redundant / or * characters, but it's better than allowing unbounded
vla allocation.
eventually i'll write code to move the pattern to the stack and
eliminate redundancy to ensure that it fits in PATH_MAX at the
beginning of glob. this would also allow it to be modified in place
for passing to fnmatch rather than copied at each level of recursion.
| Rich Felker | 2011-06-05 | 1 | -0/+2 |
| * | eliminate (harmless in this case) vla usage in fnmatch.c | Rich Felker | 2011-06-05 | 1 | -1/+1 |
| * | missing prototypes for mbsnrtowcs and wcsnrtombs | Rich Felker | 2011-05-30 | 1 | -0/+6 |
| * | implement pthread_[sg]etconcurrency.•••there is a resource limit of 0 bits to store the concurrency level
requested. thus any positive level exceeds a resource limit, resulting
in EAGAIN. :-)
| Rich Felker | 2011-05-30 | 3 | -0/+18 |
| * | implement uselocale function (minimal) | Rich Felker | 2011-05-30 | 2 | -0/+12 |
| * | add useless, obsolescent function ulimit | Rich Felker | 2011-05-29 | 1 | -0/+19 |
| * | fix backwards posix_spawn file action order | Rich Felker | 2011-05-29 | 5 | -6/+10 |
| * | add accidentally-omitted file needed for posix_spawn file actions | Rich Felker | 2011-05-28 | 1 | -0/+10 |
| * | add file actions support to posix_spawn | Rich Felker | 2011-05-28 | 5 | -2/+85 |
| * | posix_spawn: honor POSIX_SPAWN_SETSIGDEF flag | Rich Felker | 2011-05-28 | 1 | -1/+3 |
| * | initial implementation of posix_spawn•••file actions are not yet implemented, but everything else should be
mostly complete and roughly correct.
| Rich Felker | 2011-05-28 | 13 | -0/+218 |
| * | modernize coding style in sjlj asm | Rich Felker | 2011-05-26 | 4 | -35/+35 |
| * | fix strncat and wcsncat (double null termination)•••also modify wcsncpy to use the same loop logic
| Rich Felker | 2011-05-22 | 3 | -3/+3 |
| * | fix wcsncpy writing past end of buffer | Rich Felker | 2011-05-22 | 1 | -1/+1 |
| * | fix brk/sbrk behavior to match the real legacy functions | Rich Felker | 2011-05-22 | 2 | -2/+4 |
| * | release notes for 0.7.10 | Rich Felker | 2011-05-17 | 1 | -0/+25 |
| * | fix the last known rounding bug in floating point printing•••the observed symptom was that the code was incorrectly rounding up
1.0625 to 1.063 despite the rounding mode being round-to-nearest with
ties broken by rounding to even last place. however, the code was just
not right in many respects, and i'm surprised it worked as well as it
did. this time i tested the values that end up in the variables round,
small, and the expression round+small, and all look good.
| Rich Felker | 2011-05-11 | 1 | -3/+4 |
| * | eventfd syscall wrapper and read/write wrappers | Rich Felker | 2011-05-08 | 4 | -0/+46 |
| * | optimize out useless default-attribute object in pthread_create | Rich Felker | 2011-05-07 | 1 | -7/+7 |
| * | optimize compound-literal sigset_t's not to contain useless hurd bits | Rich Felker | 2011-05-07 | 3 | -5/+7 |
| * | overhaul implementation-internal signal protections•••the new approach relies on the fact that the only ways to create
sigset_t objects without invoking UB are to use the sig*set()
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.
| Rich Felker | 2011-05-07 | 13 | -50/+32 |
| * | reduce some ridiculously large spin counts•••these should be tweaked according to testing. offhand i know 1000 is
too low and 5000 is likely to be sufficiently high. consider trying to
add futexes to file locking, too...
| Rich Felker | 2011-05-06 | 2 | -2/+2 |
| * | remove debug code that was missed in barrier commit | Rich Felker | 2011-05-06 | 1 | -1/+0 |
| * | 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.
| Rich Felker | 2011-05-06 | 2 | -20/+48 |
| * | add SA_NOMASK alias for SA_NODEFER with _GNU_SOURCE | Rich Felker | 2011-05-05 | 1 | -0/+1 |
| * | 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 |.
| Rich Felker | 2011-05-02 | 1 | -1/+2 |
| * | 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.
| Rich Felker | 2011-05-01 | 1 | -1/+1 |
| * | 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.
| Rich Felker | 2011-05-01 | 1 | -7/+7 |
| * | minor optimization in puts: use inline putc_unlocked macro for newline | Rich Felker | 2011-05-01 | 1 | -1/+1 |
| * | avoid crashing when nel==0 is passed to qsort | Rich Felker | 2011-04-29 | 1 | -2/+6 |
| * | 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..
| Rich Felker | 2011-04-27 | 3 | -1/+12 |
| * | 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.
| Rich Felker | 2011-04-27 | 4 | -18/+21 |
| * | 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.
| Rich Felker | 2011-04-27 | 2 | -31/+196 |
| * | 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.
| Rich Felker | 2011-04-27 | 2 | -4/+16 |
| * | function signature fix: add const qualifier to mempcpy src arg | Rich Felker | 2011-04-26 | 2 | -2/+2 |
| * | typo in prototype for mempcpy | Rich Felker | 2011-04-26 | 1 | -1/+1 |
| * | prototype for mempcpy | Rich Felker | 2011-04-26 | 1 | -0/+1 |
| * | fix bug in ipv6 parsing that prevented parsing a lone "::" | Rich Felker | 2011-04-25 | 1 | -4/+1 |
| * | ipv6 parsing code (formerly dummied-out) | Rich Felker | 2011-04-25 | 2 | -8/+62 |
| * | 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.
| Rich Felker | 2011-04-25 | 1 | -3/+4 |
| * | update release notes to new format, add more | Rich Felker | 2011-04-22 | 1 | -19/+29 |
| * | fix initial stack alignment in new threads on x86_64 | Rich Felker | 2011-04-22 | 1 | -1/+1 |
| * | update release notes in prep for 0.7.9 release | Rich Felker | 2011-04-21 | 1 | -3/+12 |
| * | omit errno update path for syscalls that cannot fail | Rich Felker | 2011-04-21 | 7 | -7/+7 |
| * | fix bogus return values for inet_pton | Rich Felker | 2011-04-21 | 1 | -2/+2 |
| * | move wait.h macros out of bits. they do not vary. | Rich Felker | 2011-04-21 | 6 | -49/+30 |
| * | include signal.h to avoid thorny __sigcontext/sigcontext issues•••this is explicitly allowed by POSIX
| Rich Felker | 2011-04-21 | 1 | -2/+2 |
| * | 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.
| Rich Felker | 2011-04-20 | 4 | -6/+6 |
