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2012-09-07remove unneeded judgemental commentary from ftw.hRich Felker1-4/+0
2012-09-07default features: make musl usable without feature test macrosRich Felker48-129/+102
the old behavior of exposing nothing except plain ISO C can be obtained by defining __STRICT_ANSI__ or using a compiler option (such as -std=c99) that predefines it. the new default featureset is POSIX with XSI plus _BSD_SOURCE. any explicit feature test macros will inhibit the default. installation docs have also been updated to reflect this change.
2012-09-07add clang-compatible thread-pointer code for mipsRich Felker1-0/+4
clang does not presently support the "v" constraint we want to use to get the result from $3, and trying to use register...__asm__("$3") to do the same invokes serious compiler bugs. so for now, i'm working around the issue with an extra temp register and putting $3 in the clobber list instead of using it as output. when the bugs in clang are fixed, this issue should be revisited to generate smaller/faster code like what gcc gets.
2012-09-07cleanup src/linux and src/misc trees, etc.Rich Felker45-98/+74
previously, it was pretty much random which one of these trees a given function appeared in. they have now been organized into: src/linux: non-POSIX linux syscalls (possibly shard with other nixen) src/legacy: various obsolete/legacy functions, mostly wrappers src/misc: still mostly uncategorized; some misc POSIX, some nonstd src/crypt: crypt hash functions further cleanup will be done later.
2012-09-06fix constraint violation in ftwRich Felker1-1/+4
void* does not implicitly convert to function pointer types.
2012-09-06provide loff_t for splice syscallRich Felker1-0/+1
so far, this is the only actual use of loff_t i've found. some software, including glib, assumes loff_t must exist if splice exists; this is a reasonable assumption since the official prototype for splice uses loff_t, as it always works with 64-bit offsets regardless of the selected libc off_t size. i'm using #define for now rather than a typedef to make it easy to define in other headers if necessary (like the LFS64 ugliness), but it may be necessary to add it to alltypes.h eventually if other functions end up needing it.
2012-09-06further use of _Noreturn, for non-plain-C functionsRich Felker11-19/+47
note that POSIX does not specify these functions as _Noreturn, because POSIX is aligned with C99, not the new C11 standard. when POSIX is eventually updated to C11, it will almost surely give these functions the _Noreturn attribute. for now, the actual _Noreturn keyword is not used anyway when compiling with a c99 compiler, which is what POSIX requires; the GCC __attribute__ is used instead if it's available, however. in a few places, I've added infinite for loops at the end of _Noreturn functions to silence compiler warnings. presumably __buildin_unreachable could achieve the same thing, but it would only work on newer GCCs and would not be portable. the loops should have near-zero code size cost anyway. like the previous _Noreturn commit, this one is based on patches contributed by philomath.
2012-09-06fix invalid implicit pointer conversion in gnulib-compat functionsRich Felker1-1/+1
2012-09-06add _Noreturn function attribute, with fallback for pre-C11 GNUCRich Felker6-9/+23
2012-09-06dladdr should be available under _BSD_SOURCE as well as _GNU_SOURCERich Felker1-1/+1
2012-09-06use restrict everywhere it's required by c99 and/or posix 2008Rich Felker192-382/+552
to deal with the fact that the public headers may be used with pre-c99 compilers, __restrict is used in place of restrict, and defined appropriately for any supported compiler. we also avoid the form [restrict] since older versions of gcc rejected it due to a bug in the original c99 standard, and instead use the form *restrict.
2012-09-06remove dependency of wmemmove on wmemcpy directionRich Felker1-4/+4
unlike the memmove commit, this one should be fine to leave in place. wmemmove is not performance-critical, and even if it were, it's already copying whole 32-bit words at a time instead of bytes.
2012-09-06remove dependency of memmove on memcpy directionRich Felker1-5/+4
this commit introduces a performance regression in many uses of memmove, which will need to be addressed before the next release. i'm making it as a temporary measure so that the restrict patch can be committed without invoking undefined behavior when memmove calls memcpy with overlapping regions.
2012-09-06fix broken ttyname[_r] (failure to null-terminate result)Rich Felker1-1/+4
2012-09-02avoid "inline" in public headers for strict c89 compatibilityRich Felker8-62/+57
while musl itself requires a c99 compiler, some applications insist on being compiled with c89 compilers, and use of "inline" in the headers was breaking them. much of this had been avoided already by just skipping the inline keyword in pre-c99 compilers or modes, but this new unified solution is cleaner and may/should result in better code generation in the default gcc configuration.
2012-09-01fix wrong type for poll.h nfds_tRich Felker1-1/+1
this should not break anything since the type should never be used except as the argument type for poll.
2012-08-30fix missing statics in crypt_sha256 codeRich Felker1-3/+3
2012-08-29anti-DoS rounds count limits for blowfish and des cryptRich Felker2-2/+2
all of the limits could use review, but err on the side of avoiding excessive rounds for now.
2012-08-29limit sha512 rounds to similar runtime to sha256 limitRich Felker1-1/+1
these limits could definitely use review, but for now, i feel consistency and erring on the side of preventing servers from getting bogged down by excessively-slow user-provided settings (think .htpasswd) are the best policy. blowfish should be updated to match.
2012-08-29add sha256/sha512 cryptRich Felker4-1/+700
based on versions sent to the list by nsz, with some simplification and debloating. i'd still like to get them a bit smaller, or ideally merge them into a single file with most of the code being shared, but that can be done later.
2012-08-29get rid of eh_frame bloatRich Felker1-3/+12
if needed for debugging, it will be output in the .debug_frame section instead, where it is not part of the loaded program and where the strip command is free to strip it.
2012-08-27fix bug caused by main app & libc having map set; cannot free themRich Felker1-1/+1
2012-08-26dladdr support for dynamic linker (nonstandard extension)Rich Felker3-0/+105
based on patches submitted by boris brezillon. this commit also fixes the issue whereby the main application and libc don't have the address ranges of their mappings stored, which was theoretically a problem for RTLD_NEXT support in dlsym; it didn't actually matter because libc never calls dlsym, and it seemed to be doing the right thing (by chance) for symbols in the main program as well.
2012-08-25implement "low hanging fruit" from C11Rich Felker7-49/+75
based on Gregor's patch sent to the list. includes: - stdalign.h - removing gets in C11 mode - adding aligned_alloc and adjusting other functions to use it - adding 'x' flag to fopen for exclusive mode
2012-08-25add c11 quick_exit and at_quick_exit functionsRich Felker3-0/+46
2012-08-25fix bug in gnu hash lookup on dlsym(handle, name) lookupsRich Felker1-1/+1
wrong hash was being passed; just a copy/paste error. did not affect lookups in the global namespace; this is probably why it was not caught in testing.
2012-08-25clean up search_vec usage for vdsoRich Felker1-2/+2
2012-08-25use new search_vec function to find vdso in dynamic linkerRich Felker1-4/+2
2012-08-25ensure canary is setup if stack-prot libs are dlopen'd into non-ssp appRich Felker2-2/+6
previously, this usage could lead to a crash if the thread pointer was still uninitialized, and otherwise would just cause the canary to be zero (less secure).
2012-08-25add gnu hash support in the dynamic linkerRich Felker2-13/+86
based on the patches contributed by boris brezillon.
2012-08-24type exposure fixes in sys/sem.hRich Felker1-2/+5
2012-08-24stdio_ext.h needs to include stdio.h, at least to get FILE...Rich Felker1-0/+2
2012-08-24fix missing uintXX_t in nameser.hRich Felker1-0/+2
2012-08-24fix dirent.h with _BSD_SOURCERich Felker1-0/+3
2012-08-23optimize legacy ffs functionRich Felker1-4/+2
2012-08-19fix bug whereby most atexit-registered functions got skippedRich Felker1-3/+2
2012-08-18make dynamic linker report all failures before exitingRich Felker1-2/+6
before, only the first library that failed to load or symbol that failed to resolve was reported, and then the dynamic linker immediately exited. when attempting to fix a library compatibility issue, this is about the worst possible behavior. now we print all errors as they occur and exit at the very end if errors were encountered.
2012-08-17release notes for 0.9.4v0.9.4Rich Felker1-0/+29
2012-08-17add mips to supported arch list in INSTALL fileRich Felker1-1/+1
2012-08-17crt1 must align stack pointer on mipsRich Felker1-0/+1
it's naturally aligned when entered with the kernel argv array, but if ld.so has been invoked explicitly to run a program, the stack will not be aligned due to having thrown away argv[0].
2012-08-17fix bug computing argc when invoking ld-musl-mips.so.1 progname ...Rich Felker1-3/+3
2012-08-17split up installation targetRich Felker1-2/+10
patch by Luca Barbato (lu_zero)
2012-08-17fix extremely rare but dangerous race condition in robust mutexesRich Felker3-20/+33
if new shared mappings of files/devices/shared memory can be made between the time a robust mutex is unlocked and its subsequent removal from the pending slot in the robustlist header, the kernel can inadvertently corrupt data in the newly-mapped pages when the process terminates. i am fixing the bug by using the same global vm lock mechanism that was used to fix the race condition with unmapping barriers after pthread_barrier_wait returns.
2012-08-17fix float parsing logic for long decimal expansionsRich Felker1-1/+1
this affects at least the case of very long inputs, but may also affect shorter inputs that become long due to growth while upscaling. basically, the logic for the circular buffer indices of the initial base-10^9 digit and the slot one past the final digit, and for simplicity of the loop logic, assumes an invariant that they're not equal. the upscale loop, which can increase the length of the base-10^9 representation, attempted to preserve this invariant, but was actually only ensuring that the end index did not loop around past the start index, not that the two never become equal. the main (only?) effect of this bug was that subsequent logic treats the excessively long number as having no digits, leading to junk results.
2012-08-15handle null arguments to legacy bsd err.h functionsRich Felker1-2/+2
2012-08-15improve headers to better deal with removed-in-posix-2008 featuresRich Felker2-13/+22
with this patch, setting _POSIX_SOURCE, or setting _POSIX_C_SOURCE or _XOPEN_SOURCE to an old version, will bring back the interfaces that were removed in POSIX 2008 - at least the ones i've covered so far, which are gethostby*, usleep, and ualarm. if there are other functions still in widespread use that were removed for which similar changes would be beneficial, they can be added just like this.
2012-08-15add missing xattr functionsRich Felker2-0/+18
not sure why these were originally omitted..
2012-08-15update copyright/credits for recent code additionsRich Felker1-2/+12
2012-08-14support configuring cross compiling with CROSS_COMPILE prefix variableRich Felker1-3/+6
2012-08-13Merge remote-tracking branch 'nsz/bsd'Rich Felker1-25/+26
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