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* improve gcc wrapper to support -nostdlib, -nostartfilesRich Felker2012-02-021-1/+1
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* make stdio open, read, and write operations cancellation pointsRich Felker2012-02-023-5/+28
| | | | | | | | | | it should be noted that only the actual underlying buffer flush and fill operations are cancellable, not reads from or writes to the buffer. this behavior is compatible with POSIX, which makes all cancellation points in stdio optional, and it achieves the goal of allowing cancellation of a thread that's "stuck" on IO (due to a non-responsive socket/pipe peer, slow/stuck hardware, etc.) without imposing any measurable performance cost.
* make passwd/group functions safe against cancellation in stdioRich Felker2012-02-014-6/+35
| | | | these changes are a prerequisite to making stdio cancellable.
* apparently gnu caddr_t is supposed to be char *, not unsigned longRich Felker2012-02-011-1/+1
| | | | this type should never be used anyway, but some old junk uses it..
* fix utmp.h mess, try 2Rich Felker2012-02-011-1/+1
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* fix previous utmp.h junk commitRich Felker2012-01-311-1/+1
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* add some missing junk in utmp.hRich Felker2012-01-311-0/+4
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* add fgetpwent (nonstandard function)Rich Felker2012-01-292-0/+14
| | | | based on patch by Jeremy Huntwork
* add linux setfs[ug]id syscall wrappersRich Felker2012-01-283-0/+36
| | | | patch by Jeremy Huntwork
* remove useless "extern" keywords in headersRich Felker2012-01-263-3/+3
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* fix typo in FPE_FLTUND definition, signal.hRich Felker2012-01-251-1/+1
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* add MIN/MAX macros to sys/param.hRich Felker2012-01-241-0/+5
| | | | this is a nonstandard junk header anyway, so just do what apps expect..
* add legacy futimes and lutimes functionsRich Felker2012-01-243-0/+28
| | | | | based on patch by sh4rm4. these functions are deprecated; futimens and utimensat should be used instead in new programs.
* make gcc wrapper support -shared correctlyRich Felker2012-01-241-2/+7
| | | | | | | it was previously attempting to link start files as part of shared objects. this is definitely wrong and depending on the platform and linker could range from just adding extraneous junk to introducing textrels to making linking fail entirely.
* make glob mark symlinks-to-directories with the GLOB_MARK flagRich Felker2012-01-231-1/+1
| | | | | | POSIX is unclear on whether it should, but all historical implementations seem to behave this way, and it seems more useful to applications.
* fix broken copy relocations from dynamic linker cleanupRich Felker2012-01-231-1/+4
| | | | | this issue affected programs which use global variables exported by non-libc libraries.
* dynamic linker support for PIE binaries (position-independent main program)Rich Felker2012-01-231-3/+6
| | | | | even with this change, PIE will not work yet due to deficiencies in the crt1.o startup code.
* cleanup dynamic linker, removing some code duplicationRich Felker2012-01-231-80/+66
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* update release notes for 0.8.4 v0.8.4Rich Felker2012-01-231-3/+5
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* fix cancellation failure in single-threaded programsRich Felker2012-01-221-1/+1
| | | | | | | even a single-threaded program can be cancellable, e.g. if it's called pthread_cancel(pthread_self()). the correct predicate to check is not whether multiple threads have been invoked, but whether pthread_self has been invoked.
* support GLOB_PERIOD flag (GNU extension) to glob functionRich Felker2012-01-221-1/+2
| | | | patch by sh4rm4
* update WHATSNEW in preparation for 0.8.4 (not finished)Rich Felker2012-01-221-0/+30
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* use prlimit syscall for getrlimit/setrlimitRich Felker2012-01-202-4/+14
| | | | | | this allows the full range of 64-bit limit arguments even on 32-bit systems. fallback to the old syscalls on old kernels that don't support prlimit.
* add prlimit syscall wrapperRich Felker2012-01-203-0/+18
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* fix dynamic linker not to depend on DYNAMIC ptr in 0th entry of GOTRich Felker2012-01-201-3/+12
| | | | | | | | | | this fixes an issue using gold instead of gnu ld for linking. it also should eliminate the need of the startup code to even load/pass the got address to the dynamic linker. based on patch submitted by sh4rm4 with minor cosmetic changes. further cleanup will follow.
* alias basename to glibc name for it, to meet abi goalsRich Felker2012-01-181-0/+3
| | | | | | note that regardless of the name used, basename is always conformant. it never takes on the bogus gnu behavior, unlike glibc where basename is nonconformant when declared manually without including libgen.h.
* fix char signedness bug in dynlinker hash functionRich Felker2012-01-171-1/+2
| | | | | this only affects non-ascii symbol names, which are probably not in use anyway..
* fix broken reboot wrapper (syscall needs extra silly magic arguments...)Rich Felker2011-12-231-1/+1
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* fix issue with excessive mremap syscalls on reallocRich Felker2011-11-161-4/+2
| | | | | | | | | | CHUNK_SIZE macro was defined incorrectly and shaving off at least one significant bit in the size of mmapped chunks, resulting in the test for oldlen==newlen always failing and incurring a syscall. fortunately i don't think this issue caused any other observable behavior; the definition worked correctly for all non-mmapped chunks where its correctness matters more, since their lengths are always multiples of the alignment.
* fix __cplusplus extern "C" closing brace in pty.h (typo?)Rich Felker2011-11-101-1/+1
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* fix signed overflows at most-negative values in ato(i|l|ll)Rich Felker2011-11-103-6/+9
| | | | patch by Pascal Cuoq (with minor tweaks to comments)
* fix all missing instances of __cplusplus checks/extern "C" in headersRich Felker2011-11-1021-1/+166
| | | | patch by Arvid Picciani (aep)
* report sem value overflows in sem_postRich Felker2011-10-261-0/+4
| | | | | this is not required by the standard, but it's nicer than corrupting the state and rather inexpensive.
* add some missing GNU FNM_* extensions to the headerRich Felker2011-10-171-1/+3
| | | | | note that none of these are implemented, and programs depending on them may break... patch by sh4rm4
* fix some details in ugly stuff that doesn't belong in libcRich Felker2011-10-172-6/+8
| | | | | patches by sh4rm4, presumably needed to make gdb or some similar junk happy...
* don't define wchar_t on c++Rich Felker2011-10-153-0/+6
| | | | | | it's a keyword in c++ (wtf). i'm not sure this is the cleanest solution; it might be better to avoid ever defining __NEED_wchar_t on c++. but in any case, this works for now.
* support vfork on i386Rich Felker2011-10-141-0/+14
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* make available a namespace-safe vfork, if supportedRich Felker2011-10-141-1/+4
| | | | this may be useful to posix_spawn..?
* add dummy __cxa_finalizeRich Felker2011-10-141-0/+4
| | | | | | musl's dynamic linker does not support unloading dsos, so there's nothing for this function to do. adding the symbol in case anything depends on its presence..
* support __cxa_atexit, and registering atexit functions from atexit handlersRich Felker2011-10-141-7/+26
| | | | | mildly tested; may have bugs. the locking should be updated not to use spinlocks but that's outside the scope of this one module.
* simplify atexit and fflush-on-exit handlingRich Felker2011-10-143-9/+12
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* fix F_GETOWN return value handlingRich Felker2011-10-091-0/+1
| | | | | | | | the fcntl syscall can return a negative value when the command is F_GETOWN, and this is not an error code but an actual value. thus we must special-case it and avoid calling __syscall_ret to set errno. this fix is better than the glibc fix (using F_GETOWN_EX) which only works on newer kernels and is more complex.
* fix typo in arm clone() asmRich Felker2011-10-091-1/+1
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* fix fcntl O_* flags for armRich Felker2011-10-051-4/+4
| | | | no idea why these 4 are permuted and the rest are standard/generic
* make [U]INTn_C() macros have the right type...Rich Felker2011-10-041-4/+4
| | | | ...and still be valid in #if directives.
* recovering ownerdead robust mutex must reset recursive lock countRich Felker2011-10-031-0/+1
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* simplify robust mutex unlock code pathRich Felker2011-10-031-4/+4
| | | | | | | right now it's questionable whether this change is an improvement or not, but if we later want to support priority inheritance mutexes, it will be important to have the code paths unified like this to avoid major code duplication.
* fix crash if pthread_mutex_unlock is called without ever lockingRich Felker2011-10-031-1/+1
| | | | | this is valid for error-checking mutexes; otherwise it invokes UB and would be justified in crashing.
* use count=0 instead of 1 for recursive mutex with only one lock referenceRich Felker2011-10-032-4/+2
| | | | | | | this simplifies the code paths slightly, but perhaps what's nicer is that it makes recursive mutexes fully reentrant, i.e. locking and unlocking from a signal handler works even if the interrupted code was in the middle of locking or unlocking.
* sysconf for PTHREAD_KEYS_MAXRich Felker2011-10-031-1/+1
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