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2012-05-25fix regex on armRich Felker-1/+1
TRE has a broken assumption that wchar_t is signed, which is a sane expectation, but not required by the standard, and false on ARM's ABI. i leave tre_char_t as wchar_t for now, since a pointer to it is directly passed to functions that need pointer to wchar_t. it does not seem to break anything. and since the maximum unicode scalar value is 0x10ffff, just use that explicitly rather than using the max value of any particular C type.
2012-05-25remove cruft from pthread structure (old cancellation stuff)Rich Felker-2/+0
2012-05-25remove leftover cp_sp cruft from cancellation code, fix small bugRich Felker-3/+1
the bug was that cancellation requests which arrived while a cancellation point was interrupted by a signal handler would not be acted upon when the signal handler returns. this was because cp_sp was never set; it's no longer needed or used. instead, just always re-raise the signal when cancellation was not acted upon. this wastes a tiny amount of time in the rare case where it even matters, but it ensures correctness and simplifies the code.
2012-05-24fix arm syscall.h to reflect which syscalls actually exist (on EABI)Rich Felker-22/+0
2012-05-24avoid deprecated (by linux) alarm syscall; use setitimer insteadRich Felker-1/+4
2012-05-24linux deprecated SYS_utime on some archs, so use SYS_utimes insteadRich Felker-1/+8
the old code could be kept for cases where SYS_utime is available, but it's not really worth the ifdef ugliness. and better to avoid deprecated stuff just in case the kernel devs ever get crazy enough to start removing it from archs where it was part of the ABI and breaking static bins...
2012-05-23fix bad opcode in arm syscall_cp_asmRich Felker-1/+1
2012-05-23fix issue with longjmp out of signal handlers and cancellationRich Felker-52/+35
stale state information indicating that a thread was possibly blocked at a cancellation point could get left behind if longjmp was used to exit a signal handler that interrupted a cancellation point. to fix the issue, we throw away the state information entirely and simply compare the saved instruction pointer to a range of code addresses in the __syscall_cp_asm function. all the ugly PIC work (which becomes minimal anyway with this approach) is defered to cancellation time instead of happening at every syscall, which should improve performance too. this commit also fixes cancellation on arm, which was mildly broken (race condition, not checking cancellation flag once inside the cancellation point zone). apparently i forgot to implement that. the new arm code is untested, but appears correct; i'll test and fix it later if there are problems.
2012-05-23simplify cancellation push/pop slightlyRich Felker-12/+9
no need to pass unnecessary extra arguments on to the core code in pthread_create.c. this just wastes cycles and code bloat.
2012-05-23debloat jmp_buf in _GNU_SOURCE modeRich Felker-3/+0
i originally made it the same size as the bloated GNU version, which contains space for saved signal mask, but this makes some structures containing jmp_buf become much larger for no benefit. we will never use the signal mask field with plain setjmp; sigsetjmp serves that purpose.
2012-05-22remove everything related to forkallRich Felker-78/+0
i made a best attempt, but the intended semantics of this function are fundamentally contradictory. there is no consistent way to handle ownership of locks when forking a multi-threaded process. the code could have worked by accident for programs that only used normal mutexes and nothing else (since they don't actually store or care about their owner), but that's about it. broken-by-design interfaces that aren't even in glibc (only solaris) don't belong in musl.
2012-05-22some feature test fixes for unistd.hRich Felker-16/+16
2012-05-22fix missing _BSD_SOURCE support in bits/*.hRich Felker-12/+12
this is actually rather ugly, and would get even uglier if we ever want to support further feature test macros. at some point i may factor the bits headers into separate files for C base, POSIX base, and nonstandard extensions (the only distinctions that seem to matter now) and then the logic for which to include can go in the main header rather than being duplicated for each arch. the downside of this is that it would result in more files having to be opened during compilation, so as long as the ugliness does not grow, i'm inclined to leave it alone for now.
2012-05-22_GNU_SOURCE implies all BSD features except ones GNU rejectsRich Felker-1/+1
2012-05-22various header cleanups, some related to _BSD_SOURCE additionRich Felker-17/+9
there is no reason to avoid multiple identical macro definitions; this is perfectly legal C, and even with the maximal warning options enabled, gcc does not issue any warning for it.
2012-05-22bsd_signal is a legacy (removed) XSI function, not needed in _BSD_SOURCERich Felker-4/+1
its only purpose was for use on non-BSD systems that implement sysv semantics for signal() by default.
2012-05-22support _BSD_SOURCE feature test macroRich Felker-41/+126
patch by Isaac Dunham. matched closely (maybe not exact) to glibc's idea of what _BSD_SOURCE should make visible.
2012-05-21fix typo in utimes function that made it mess up file timesRich Felker-1/+1
2012-05-21fix out-of-bounds array access in pthread barriers on 64-bitRich Felker-1/+1
it's ok to overlap with integer slot 3 on 32-bit because only slots 0-2 are used on process-local barriers.
2012-05-20move getpass decl to the right placeRich Felker-1/+1
2012-05-16fix misplaced semicolon in preprocessor directive (#undef h_errno)Rich Felker-1/+1
2012-05-14yet another try to get the check for gcc right...Rich Felker-1/+1
2012-05-14fix error in last configure change (lack of escaping)Rich Felker-1/+1
2012-05-14useless lastlog path just to make some stuff happyRich Felker-0/+1
2012-05-14missing limit LOGIN_NAME_MAXRich Felker-0/+1
2012-05-13correct the check for gcc (previous version failed for cross compilers)Rich Felker-1/+1
2012-05-13remove some no-op end of string tests from regex parserRich Felker-4/+0
these are cruft from the original code which used an explicit string length rather than null termination. i blindly converted all the checks to null terminator checks, without noticing that in several cases, the subsequent switch statement would automatically handle the null byte correctly.
2012-05-13another BRE fix: in ^*, * is literalRich Felker-0/+2
i don't understand why this has to be conditional on being in BRE mode, but enabling this code unconditionally breaks a huge number of ERE test cases.
2012-05-13let sysconf accurately report # of cpus availableRich Felker-2/+10
i've been trying out openmp and it seems like it won't be much use without this...
2012-05-12use __h_errno_location for h_errnoRich Felker-1/+14
we do not bother making h_errno thread-local since the only interfaces that use it are inherently non-thread-safe. but still use the potentially-thread-local ABI to access it just to avoid lock-in.
2012-05-12susv4 removed gethostbyname, etc. legacy cruft.Rich Felker-9/+7
2012-05-12namespace cleanup - NI_* is NOT reserved by netdb.hRich Felker-3/+2
2012-05-12some gnu junk in netdb.hRich Felker-0/+8
2012-05-12fix missing va_list for vsyslogRich Felker-2/+2
2012-05-13search: add comments to tsearch_avl.cnsz-0/+6
2012-05-13search: add tdestroy (gnu extension)nsz-0/+23
2012-05-11add missing IN6_ARE_ADDR_EQUALRich Felker-0/+5
written to avoid multiple conditional jumps and avoid ugly repetitive lines in the header file.
2012-05-10add one more bogus legacy headerRich Felker-0/+9
this one is for program(s|ers) who haven't heard of uint16_t and uint32_t (which are obviously the correct types for use in such situations, as they're the argument/return types for ntohs/htons and ntohl/htonl).
2012-05-10move vsyslog out of SYSLOG_NAMES conditionalRich Felker-2/+4
2012-05-10Merge remote-tracking branch 'nsz/master'Rich Felker-5/+8
2012-05-10remove __lock dependency from exitRich Felker-2/+4
there's no sense in using a powerful lock in exit, because it will never be unlocked. a thread that arrives at exit while exit is already in progress just needs to hang forever. use the pause syscall for this because it's cheap and easy and universally available.
2012-05-10fix missing static (namespace clash)Rich Felker-1/+1
2012-05-10fix missing parens in bit op macros (param.h)Rich Felker-1/+1
2012-05-10and another bug in setbit, etc. macros..Rich Felker-1/+1
2012-05-10fix typo in sys/param.h that broke setbit, etc. macrosRich Felker-1/+1
this is all junk, but some programs use it.
2012-05-09omit declaration of basename wrongly interpreted as prototype in C++Rich Felker-0/+2
the non-prototype declaration of basename in string.h is an ugly compromise to avoid breaking 2 types of broken software: 1. programs which assume basename is declared in string.h and thus would suffer from dangerous pointer-truncation if an implicit declaration were used. 2. programs which include string.h with _GNU_SOURCE defined but then declare their own prototype for basename using the incorrect GNU signature for the function (which would clash with a correct prototype). however, since C++ does not have non-prototype declarations and interprets them as prototypes for a function with no arguments, we must omit it when compiling C++ code. thankfully, all known broken apps that suffer from the above issues are written in C, not C++.
2012-05-08math: fix remquo.c when x==-y and a subnormal remainder bug as wellnsz-5/+8
backported fix from freebsd: http://svnweb.FreeBSD.org/base?view=revision&revision=233973
2012-05-07some assemblers don't like fistpq; use the alt. mnemonic fistpllRich Felker-3/+3
2012-05-07fix error checking for \ at end of regex (this was broken previously)Rich Felker-1/+1
2012-05-07fix copy and paste error in regex code causing mishandling of \) in BRERich Felker-1/+1