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* remove some no-op end of string tests from regex parserRich Felker2012-05-131-4/+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.
* another BRE fix: in ^*, * is literalRich Felker2012-05-131-0/+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.
* let sysconf accurately report # of cpus availableRich Felker2012-05-131-2/+10
| | | | | i've been trying out openmp and it seems like it won't be much use without this...
* use __h_errno_location for h_errnoRich Felker2012-05-123-1/+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.
* susv4 removed gethostbyname, etc. legacy cruft.Rich Felker2012-05-121-9/+7
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* namespace cleanup - NI_* is NOT reserved by netdb.hRich Felker2012-05-121-3/+2
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* some gnu junk in netdb.hRich Felker2012-05-121-0/+8
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* fix missing va_list for vsyslogRich Felker2012-05-121-2/+2
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* search: add comments to tsearch_avl.cnsz2012-05-131-0/+6
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* search: add tdestroy (gnu extension)nsz2012-05-132-0/+23
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* add missing IN6_ARE_ADDR_EQUALRich Felker2012-05-111-0/+5
| | | | | written to avoid multiple conditional jumps and avoid ugly repetitive lines in the header file.
* add one more bogus legacy headerRich Felker2012-05-101-0/+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).
* move vsyslog out of SYSLOG_NAMES conditionalRich Felker2012-05-101-2/+4
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* Merge remote-tracking branch 'nsz/master'Rich Felker2012-05-103-5/+8
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| * math: fix remquo.c when x==-y and a subnormal remainder bug as wellnsz2012-05-083-5/+8
| | | | | | | | | | backported fix from freebsd: http://svnweb.FreeBSD.org/base?view=revision&revision=233973
* | remove __lock dependency from exitRich Felker2012-05-101-2/+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.
* | fix missing static (namespace clash)Rich Felker2012-05-101-1/+1
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* | fix missing parens in bit op macros (param.h)Rich Felker2012-05-101-1/+1
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* | and another bug in setbit, etc. macros..Rich Felker2012-05-101-1/+1
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* | fix typo in sys/param.h that broke setbit, etc. macrosRich Felker2012-05-101-1/+1
| | | | | | | | this is all junk, but some programs use it.
* | omit declaration of basename wrongly interpreted as prototype in C++Rich Felker2012-05-091-0/+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++.
* some assemblers don't like fistpq; use the alt. mnemonic fistpllRich Felker2012-05-073-3/+3
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* fix error checking for \ at end of regex (this was broken previously)Rich Felker2012-05-071-1/+1
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* fix copy and paste error in regex code causing mishandling of \) in BRERich Felker2012-05-071-1/+1
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* fix regex breakage in last commit (failure to handle empty regex, etc.)Rich Felker2012-05-071-4/+1
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* fix ugly bugs in TRE regex parserRich Felker2012-05-071-60/+31
| | | | | | | | | | | | | | | | | | | | | | 1. * in BRE is not special at the beginning of the regex or a subexpression. this broke ncurses' build scripts. 2. \\( in BRE is a literal \ followed by a literal (, not a literal \ followed by a subexpression opener. 3. the ^ in \\(^ in BRE is a literal ^ only at the beginning of the entire BRE. POSIX allows treating it as an anchor at the beginning of a subexpression, but TRE's code for checking if it was at the beginning of a subexpression was wrong, and fixing it for the sake of supporting a non-portable usage was too much trouble when just removing this non-portable behavior was much easier. this patch also moved lots of the ugly logic for empty atom checking out of the default/literal case and into new cases for the relevant characters. this should make parsing faster and make the code smaller. if nothing else it's a lot more readable/logical. at some point i'd like to revisit and overhaul lots of this code...
* update release info for 0.9.0 v0.9.0Rich Felker2012-05-062-5/+8
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* some extra legacy header stuffRich Felker2012-05-063-0/+32
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* add FORCE_EVAL macro to evaluate float expr for their side effectnsz2012-05-066-24/+25
| | | | | updated nextafter* to use FORCE_EVAL, it can be used in many other places in the math code to improve readability.
* fix unused variable warnings in new nextafter/nexttoward codeRich Felker2012-05-065-6/+12
| | | | | | | apparently initializing a variable is not "using" it but assigning to it is "using" it. i don't really like this fix, but it's better than trying to make a bigger cleanup just before a release, and it should work fine (tested against nsz's math tests).
* take byte order from gcc if gcc has defined itRich Felker2012-05-061-0/+4
| | | | | | | this only works with gcc 4.6 and later, but it allows us to support non-default endianness on archs like arm, mips, ppc, etc. that can do both without having separate header sets for both variants, and it saves one #include even on fixed-endianness archs like x86.
* Merge remote-tracking branch 'nsz/master'Rich Felker2012-05-065-291/+176
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| * math: nextafter and nexttoward cleanupnsz2012-05-065-291/+176
| | | | | | | | | | make nexttoward, nexttowardf independent of long double representation. fix nextafterl: it did not raise underflow flag when the result was 0.
* | add isastream (obsolete STREAMS junk)Rich Felker2012-05-062-1/+9
|/ | | | | | apparently some packages see stropts.h and want to be able to use this. the implementation checks that the file descriptor is valid by using fcntl/F_GETFD so it can report an error if not (as specified).
* fix definitions of FP_ILOGB constantsRich Felker2012-05-051-2/+2
| | | | | | | | | | | | | | | two issues: (1) the type was wrong (unsigned instead of signed int), and (2) the value of FP_ILOGBNAN should be INT_MIN rather than INT_MAX to match the ABI. this is also much more useful since INT_MAX corresponds to a valid input (infinity). the standard would allow us to set FP_ILOGB0 to -INT_MAX instead of INT_MIN, which would give us distinct values for ilogb(0) and ilogb(NAN), but the benefit seems way too small to justify ignoring the ABI. note that the macro is just a "portable" (to any twos complement system where signed and unsigned int have the same width) way to write INT_MIN without needing limits.h. it's valid to use this method since these macros are not required to work in #if directives.
* add -frounding-math to buildRich Felker2012-05-051-0/+1
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* update readme and release notes for 0.9.0 release (not yet final)Rich Felker2012-05-052-16/+56
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* relicense musl under MIT licenseRich Felker2012-05-052-515/+33
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* update license of njk contributed code (x86_64 asm)Rich Felker2012-05-056-7/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | these changes are based on the following communication via email: "I hereby grant that all of the code I have contributed to musl on or before April 23, 2012 may be licensed under the terms of the following MIT license: Copyright (c) 2011-2012 Nicholas J. Kain Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE."
* update INSTALL file to reflect configure script usageRich Felker2012-05-041-13/+23
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* initial commit of configure scriptRich Felker2012-05-041-0/+275
| | | | | | | | | this script is not based on autoconf; however it attempts to follow the same interface contracts for ease of integration with build systems. it is also not necessary to use musl. manually written config.mak files are still supported, as is building without any config.mak at all as long as you are happy with the default options and you supply at least ARCH on the command line to make.
* make pthread stacks non-executableRich Felker2012-05-041-1/+1
| | | | | | | | | | | | | this change is necessary or pthread_create will always fail on security-hardened kernels. i considered first trying to make the stack executable and simply retrying without execute permissions when the first try fails, but (1) this would incur a serious performance penalty on hardened systems, and (2) having the stack be executable is just a bad idea from a security standpoint. if there is real-world "GNU C" code that uses nested functions with threads, and it can't be fixed, we'll have to consider other ways of solving the problem, but for now this seems like the best fix.
* improve the build rules for installing /lib/ld-musl-$ARCH.soRich Felker2012-05-041-2/+4
| | | | | | these new rules should avoid spurious error messages when the directory (usually /lib) and the dynamic linker symlink already exist, and minimize the spam when they can't be created.
* Merge remote-tracking branch 'nsz/master'Rich Felker2012-05-042-20/+16
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| * math: change the formula used for acos.snsz2012-05-052-20/+16
| | | | | | | | | | | | | | | | | | | | old: 2*atan2(sqrt(1-x),sqrt(1+x)) new: atan2(fabs(sqrt((1-x)*(1+x))),x) improvements: * all edge cases are fixed (sign of zero in downward rounding) * a bit faster (here a single call is about 131ns vs 162ns) * a bit more precise (at most 1ulp error on 1M uniform random samples in [0,1), the old formula gave some 2ulp errors as well)
* | fix error reporting for dlsym with global symbolsRich Felker2012-05-041-1/+2
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* fix uninitialized var in vfwprintf printing 0-prec stringRich Felker2012-05-041-1/+1
| | | | this could lead to spurious failures of wide printf functions
* add *64 junk for sys/*.h headersRich Felker2012-05-047-0/+50
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* add support for ugly *64 functions with _LARGEFILE64_SOURCERich Felker2012-05-048-0/+68
| | | | | | | | | | | | | | | | musl does not support legacy 32-bit-off_t whatsoever. off_t is always 64 bit, and correct programs that use off_t and the standard functions will just work out of the box. (on glibc, they would require -D_FILE_OFFSET_BITS=64 to work.) however, some programs instead define _LARGEFILE64_SOURCE and use alternate versions of all the standard types and functions with "64" appended to their names. we do not want code to actually get linked against these functions (it's ugly and inconsistent), so macros are used instead of prototypes with weak aliases in the library itself. eventually the weak aliases may be added at the library level for the sake of using code that was originally built against glibc, but the macros will still be the desired solution in the headers.
* avoid setting nondefault scheduler tooRich Felker2012-05-031-1/+1
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