musl - musl - an implementation of the standard library for Linux-based systems

Age	Commit message (Collapse)	Author	Lines
2012-03-16	make signgam a weak alias for an internal symbol	Rich Felker	-2/+5
	otherwise, the standard C lgamma function will clobber a symbol in the namespace reserved for the application.
2012-03-16	fix namespace issues for lgamma, etc.	Rich Felker	-14/+25
	standard functions cannot depend on nonstandard symbols
2012-03-16	Merge remote branch 'nsz/master'	Rich Felker	-216/+413

2012-03-16	remove junk sincos implementations in preparation to merge nsz's real ones	Rich Felker	-24/+0

2012-03-15	remove special nan handling from x86 sqrt asm	Rich Felker	-3/+0
	a double precision nan, when converted to extended (80-bit) precision, will never end in 0x400, since the corresponding bits do not exist in the original double precision value. thus there's no need to waste time and code size on this check.
2012-03-15	simplify nan check in sqrt (x86 asm); result of sqrt is never negative	Rich Felker	-4/+3

2012-03-15	in math.h make lgamma_r and non-double bessel _GNU_SOURCE only	nsz	-0/+3
	long double and float bessel functions are no longer xsi extensions
2012-03-15	efficient sincos based on sin and cos	nsz	-8/+247

2012-03-15	implement sincosf and sincosl functions; add prototypes	Rich Felker	-0/+16
	presumably broken gcc may generate calls to these, and it's said that ffmpeg makes use of sincosf.
2012-03-15	avoid changing NaNs in sqrt (x86 asm) to satisfy c99 f.9 recommendation	Rich Felker	-0/+4

2012-03-15	correctly rounded sqrt() asm for x86 (i387)	Rich Felker	-0/+16
	the fsqrt opcode is correctly rounded, but only in the fpu's selected precision mode, which is 80-bit extended precision. to get a correctly rounded double precision output, we check for the only corner cases where two-step rounding could give different results than one-step (extended-precision mantissa ending in 0x400) and adjust the mantissa slightly in the opposite direction of the rounding which the fpu already did (reported in the c1 flag of the fpu status word). this should have near-zero cost in the non-corner cases and at worst very low cost. note that in order for sqrt() to get used when compiling with gcc, the broken, non-conformant builtin sqrt must be disabled.
2012-03-13	correct rounding for i387 sqrtf function	Rich Felker	-0/+2

2012-03-13	math cleanup: use 1.0f instead of 1.0F	nsz	-6/+6

2012-03-13	math cleanup: use 1.0f instead of (float)1.0	nsz	-96/+96

2012-03-13	remove libm.h includes when math.h and float.h are enough	nsz	-30/+47

2012-03-13	fix scanf handling of "0" (followed by immediate EOF) with "%x"	Rich Felker	-11/+6
	other cases with %x were probably broken too. I would actually like to go ahead and replace this code in scanf with calls to the new __intparse framework, but for now this calls for a quick and unobtrusive fix without the risk of breaking other things.
2012-03-13	clean up __expo2.c, use a slightly better k constant	nsz	-84/+14

2012-03-13	implement nan, nanf, nanl	Rich Felker	-0/+18

2012-03-13	first commit of the new libm!	Rich Felker	-7729/+20193
	thanks to the hard work of Szabolcs Nagy (nsz), identifying the best (from correctness and license standpoint) implementations from freebsd and openbsd and cleaning them up! musl should now fully support c99 float and long double math functions, and has near-complete complex math support. tgmath should also work (fully on gcc-compatible compilers, and mostly on any c99 compiler). based largely on commit 0376d44a890fea261506f1fc63833e7a686dca19 from nsz's libm git repo, with some additions (dummy versions of a few missing long double complex functions, etc.) by me. various cleanups still need to be made, including re-adding (if they're correct) some asm functions that were dropped.
2012-03-02	fix obscure bug in strtoull reading the highest 16 possible values	Rich Felker	-1/+1

2012-03-02	remove debug cruft that was left in getdate	Rich Felker	-2/+0

2012-03-02	first try at implementing getdate function	Rich Felker	-0/+47

2012-03-02	fix bugs in strptime handling of string day/month names, literals	Rich Felker	-0/+2

2012-03-01	implement a64l and l64a (legacy xsi stuff)	Rich Felker	-0/+26

2012-03-01	add all missing wchar functions except floating point parsers	Rich Felker	-0/+83
	these are mostly untested and adapted directly from corresponding byte string functions and similar.
2012-03-01	support null buffer argument to getcwd, auto-allocating behavior	Rich Felker	-1/+6
	this is a popular extension some programs depend on, and by using a temporary buffer and strdup rather than malloc prior to the syscall, i've avoided the dependency on free and thus minimized the bloat cost of supporting this feature.
2012-02-28	implement wcsftime function	Rich Felker	-0/+32

2012-02-28	fix pthread_cleanup_pop(1) crash in non-thread-capable, static-linked programs	Rich Felker	-2/+2

2012-02-27	work around "signal loses thread pointer" issue with "approach 2"	Rich Felker	-2/+8
	this was discussed on the mailing list and no consensus on the preferred solution was reached, so in anticipation of a release, i'm just committing a minimally-invasive solution that avoids the problem by ensuring that multi-threaded-capable programs will always have initialized the thread pointer before any signal handler can run. in the long term we may switch to initializing the thread pointer at program start time whenever the program has the potential to access any per-thread data.
2012-02-24	new attempt at working around the gcc 3 visibility bug	Rich Felker	-0/+11
	since gcc is failing to generate the necessary ".hidden" directive in the output asm, generate it explicitly with an __asm__ statement...
2012-02-24	remove useless attribute visibility from definitions	Rich Felker	-2/+2
	this was a failed attempt at working around the gcc 3 visibility bug affecting x86_64. subsequent patch will address it with an ugly but working hack.
2012-02-23	cleanup and work around visibility bug in gcc 3 that affects x86_64	Rich Felker	-12/+15
	in gcc 3, the visibility attribute must be placed on both the declaration and on the definition. if it's omitted from the definition, the compiler fails to emit the ".hidden" directive in the assembly, and the linker will either generate textrels (if supported, such as on i386) or refuse to link (on targets where certain types of textrels are forbidden or impossible without further assumptions about memory layout, such as on x86_64). this patch also unifies the decision about when to use visibility into libc.h and makes the visibility in the utf-8 state machine tables based on libc.h rather than a duplicate test.
2012-02-23	fix (hopefully) PTRACE_TRACEME (command 0) argument handling	Rich Felker	-2/+2

2012-02-23	fix for previous incorrect fix of cancellation in dns lookups	Rich Felker	-3/+4
	uninitialized file descriptor was being closed on return, causing stdin to be closed in many cases.
2012-02-17	fix get_current_dir_name behavior	Rich Felker	-2/+6

2012-02-17	add get_current_dir_name function	Rich Felker	-0/+12

2012-02-11	fix default nameserver when resolv.conf doesn't exist	Rich Felker	-1/+2

2012-02-11	fix illegal goto out of cleanup context in dns lookups	Rich Felker	-3/+3

2012-02-09	small fix for new pthread cleanup stuff	Rich Felker	-1/+1
	even if pthread_create/exit code is not linked, run flag needs to be checked and cleanup function potentially run on pop. thus, move the code to the module that's always linked when pthread_cleanup_push/pop is used.
2012-02-09	replace bad cancellation cleanup abi with a sane one	Rich Felker	-62/+23
	the old abi was intended to duplicate glibc's abi at the expense of being ugly and slow, but it turns out glib was not even using that abi except on non-gcc-compatible compilers (which it doesn't even support) and was instead using an exceptions-in-c/unwind-based approach whose abi we could not duplicate anyway without nasty dwarf2/unwind integration. the new abi is copied from a very old glibc abi, which seems to still be supported/present in current glibc. it avoids all unwinding, whether by sjlj or exceptions, and merely maintains a linked list of cleanup functions to be called from the context of pthread_exit. i've made some care to ensure that longjmp out of a cleanup function should work, even though it is not required to. this change breaks abi compatibility with programs which were using pthread cancellation, which is unfortunate, but that's why i'm making the change now rather than later. considering that most pthread features have not been usable until recently anyway, i don't see it as a major issue at this point.
2012-02-09	document iswspace and remove wrongly-included zwsp character	Rich Felker	-1/+5

2012-02-09	fix typo in iswspace space list table	Rich Felker	-1/+1

2012-02-07	protect against cancellation in dlopen	Rich Felker	-2/+5
	i'm not sure that it's "correct" for dlopen to block cancellation when calling constructors for libraries it loads, but it sure seems like the right thing. in any case, dlopen itself needs cancellation blocked.
2012-02-07	reduce some wasted space in dso structure	Rich Felker	-3/+3

2012-02-06	more locale_t interfaces (string stuff) and header updates	Rich Felker	-0/+48
	this should be everything except for some functions where the non-_l version isn't even implemented yet (mainly some non-ISO-C wcs* functions).
2012-02-06	fix some omissions and mistakes in locale_t interface definitions	Rich Felker	-13/+13

2012-02-06	add more of the locale_t interfaces, all dummied out to ignore the locale	Rich Felker	-0/+108

2012-02-06	x86_64 vfork implementation	Rich Felker	-0/+12
	untested; should work.
2012-02-06	run ctors/dtors for shared objects loaded with dlopen	Rich Felker	-0/+1

2012-02-06	add support for init/finit (constructors and destructors)	Rich Felker	-0/+19
	this is mainly in hopes of supporting c++ (not yet possible for other reasons) but will also help applications/libraries which use (and more often, abuse) the gcc __attribute__((__constructor__)) feature in "C" code. x86_64 and arm versions of the new startup asm are untested and may have minor problems.