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* use int instead of long for ptrdiff_t on all 32-bit archsRich Felker2012-08-102-2/+2
| | | | | | | | this is needed to match the underlying "ABI" standards. it's not really an ABI issue since the binary representations are the same, but having the wrong type can lead to errors when the type arising from a difference-of-pointers expression does not match the defined type of ptrdiff_t. most of the problems affect C++, not C.
* fix incorrect ptrdiff_t type on mipsRich Felker2012-08-101-1/+1
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* add blowfish hash support to cryptRich Felker2012-08-103-8/+806
| | | | | | | there are still some discussions going on about tweaking the code, but at least thing brings us to the point of having something working in the repository. hopefully the remaining major hashes (md5,sha) will follow soon.
* fix (hopefully) all hard-coded 8's for kernel sigset_t sizeRich Felker2012-08-0914-20/+31
| | | | | | | | | | some minor changes to how hard-coded sets for thread-related purposes are handled were also needed, since the old object sizes were not necessarily sufficient. things have gotten a bit ugly in this area, and i think a cleanup is in order at some point, but for now the goal is just to get the code working on all supported archs including mips, which was badly broken by linux rejecting syscalls with the wrong sigset_t size.
* add defines for number of sigset_t bytes syscalls expectRich Felker2012-08-094-0/+8
| | | | yet another gratuitous mips incompatibility...
* make crypt return an unmatchable hash rather than NULL on failureRich Felker2012-08-091-5/+2
| | | | | | | | | | | | | | | | unfortunately, a large portion of programs which call crypt are not prepared for its failure and do not check that the return value is non-null before using it. thus, always "succeeding" but giving an unmatchable hash is reportedly a better behavior than failing on error. it was suggested that we could do this the same way as other implementations and put the null-to-unmatchable translation in the wrapper rather than the individual crypt modules like crypt_des, but when i tried to do it, i found it was making the logic in __crypt_r for keeping track of which hash type we're working with and whether it succeeded or failed much more complex, and potentially error-prone. the way i'm doing it now seems to have essentially zero cost, anyway.
* further fixes for mips ioctl.h headerRich Felker2012-08-071-4/+4
| | | | untested; hopefully it's right now
* fix another mips gratuitous-incompatibility bug: ioctl numbersRich Felker2012-08-071-2/+2
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* fix bug dlsym bug that slipped in during dynamic linker cleanupRich Felker2012-08-071-1/+1
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* make configure accept mipselRich Felker2012-08-051-1/+1
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* dlsym RTLD_NEXT support for mipsRich Felker2012-08-051-0/+15
| | | | untested
* fix socket.h on mipsRich Felker2012-08-052-0/+6
| | | | | why does mips have to be gratuitously incompatible in every possible imaginable way?
* align mips _init/_fini functionsRich Felker2012-08-051-0/+2
| | | | | | since .init and .fini are not .text, the toolchain does not seem to align them for code by default. this yields random breakage depending on the object sizes the linker is dealing with.
* more changes that were lost when committing mips dynamic linkerRich Felker2012-08-051-0/+4
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* more stuff lost committing mips dynamic linkerRich Felker2012-08-051-2/+2
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* fix change lost in the process of integrating mips dynamic linkerRich Felker2012-08-051-2/+2
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* remove configure check disabling shared libraries on mipsRich Felker2012-08-051-4/+0
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* mips dynamic linker supportRich Felker2012-08-053-3/+102
| | | | | | | | | | | | | | | | | | not heavily tested, but the basics are working. the basic concept is that the dynamic linker entry point code invokes a pure-PIC (no global accesses) C function in reloc.h to perform the early GOT relocations needed to make the dynamic linker itself functional, then invokes __dynlink like on other archs. since mips uses some ugly arch-specific hacks to optimize relocating the GOT (rather than just using the normal DT_REL[A] tables like on other archs), the dynamic linker has been modified slightly to support calling arch-specific relocation code in reloc.h. most of the actual mips-specific behavior was developed by reading the output of readelf on libc.so and simple executable files. i could not find good reference information on which relocation types need to be supported or their semantics, so it's possible that some legitimate usage cases will not work yet.
* make dynlink.lo depend on reloc.h in makefileRich Felker2012-08-051-0/+2
| | | | | | this is mainly a development convenience but will also ensure users building from latest git always get up-to-date arch-specific dynamic linker code without having to "make clean".
* more cleanup of dynamic linker internalsRich Felker2012-08-051-8/+9
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* more dynamic linker internals cleanupRich Felker2012-08-051-6/+6
| | | | | | changing the string printed for the dso name is not a regression; the old code was simply using the wrong dso name (head rather than the dso currently being relocated). this will be fixed in a later commit.
* dynamic linker internals cleanupRich Felker2012-08-051-5/+7
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* floating point support for arm setjmp/longjmpRich Felker2012-08-052-2/+54
| | | | | | not heavily tested, but at least they don't seem to break anything on soft float targets with or without coprocessors. they check the auxv AT_HWCAP flags to determine which coprocessor, if any, is available.
* release notes for 0.9.3 v0.9.3Rich Felker2012-08-021-0/+35
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* abstract out compiler runtime library for linking libc.soRich Felker2012-08-021-1/+2
| | | | | this allows config.mak to override the default -lgcc for building with other compilers such as pcc/clang/etc.
* fix argument type error on wcwidth functionRich Felker2012-08-021-2/+2
| | | | | | | since the correct declaration was not visible, and since the representation of the types wchar_t and wint_t always match, a compiler would have to go out of its way to make this bug manifest, but better to fix it anyway.
* fix missing static in getusershell (namespace pollution)Rich Felker2012-08-021-1/+1
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* optimize mempcpy to minimize need for data saved across the callRich Felker2012-07-311-2/+1
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* optimize arm setjmp/longjmp register saving/loadingRich Felker2012-07-272-6/+2
| | | | | the original code was wrongly based on how it would be done in thumb mode, but that's not needed because musl's asm only targets arm.
* save AT_HWCAP from auxv for subsequent use in machine-specific codeRich Felker2012-07-273-0/+4
| | | | | | | it's expected that this will be needed/useful only in asm, so I've given it its own symbol that can be addressed in pc-relative ways from asm rather than adding a field in the __libc structure which would require hard-coding the offset wherever it's used.
* retry on cas failures in sem_trywaitRich Felker2012-07-241-2/+2
| | | | | | | | | this seems counter-intuitive since sem_trywait is supposed to just try once, not wait for the semaphore. however, the retry loop is not a wait. instead, it's to handle the case where the value changes due to a simultaneous post or wait from another thread while the semaphore value remains positive. in such a case, it's absolutely wrong for sem_trywait to fail with EAGAIN because the semaphore is not busy.
* gcc wrapper improvement: leave libgcc dir in the library pathRich Felker2012-07-231-1/+1
| | | | | this is needed in case -lgcc is passed explicitly on the link command line, for example if the wrapper is being used to build musl itself.
* add ioperm/iopl syscallsRich Felker2012-07-233-0/+31
| | | | | | | | | | | | | | | based on patches by orc and Isaac Dunham, with some fixes. sys/io.h exists and contains prototypes for these functions regardless of whether the target arch has them; this is a bit unorthodox but I don't think it will break anything. the function definitions do not exist unless the appropriate SYS_* syscall number macro is defined, which should make sure configure scripts looking for these functions don't find them on other systems. presently, sys/io.h does not have the inb/outb/etc. port io macros/functions. I'd be surprised if ioperm/iopl are useful without them, so they probably need to be added at some point in appropriate bits/io.h files...
* add splice and vmsplice syscallsRich Felker2012-07-233-0/+28
| | | | based on patches by orc and Isaac Dunham.
* add extended attributes syscallsRich Felker2012-07-232-0/+74
| | | | based on patch by orc and Isaac Dunham, with some fixes.
* add pipe2 syscallRich Felker2012-07-232-0/+9
| | | | based on patch by orc and Isaac Dunham, with some details fixed.
* remove scanf dependency from getaddrinfo /etc/services supportRich Felker2012-07-221-5/+4
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* getaddrinfo /etc/services lookup supportRich Felker2012-07-221-3/+16
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* fix namespace issue in prototypes in math.hRich Felker2012-07-221-2/+2
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* fix wrong size for sigjmp_buf signal set arrayRich Felker2012-07-221-1/+1
| | | | 128 is the size in bytes, not longs.
* add floating point register saving/restoring to mips setjmp/longjmpRich Felker2012-07-223-2/+30
| | | | | | | also fix the alignment of jmp_buf to meet the abi. linux always emulates fpu on mips if it's not present, so enabling this code unconditionally is "safe" but may be slow. in the long term it may be preferable to find a way to disable it on soft float builds.
* make getservby*_r return error code rather than -1 (and using errno)Rich Felker2012-07-222-19/+35
| | | | untested but should be correct..
* fix logic error for skipping failed interfaces in if_nameindexRich Felker2012-07-211-8/+7
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* fix typo in aio.hRich Felker2012-07-191-1/+1
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* fix getservby*() with null pointer for protocol argumentRich Felker2012-07-142-0/+8
| | | | not sure this is the best fix but it should work
* avoid blx instruction which does not exist on armv4t or armv4Rich Felker2012-07-141-1/+2
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* make dynamic linker tell the debugger its own pathnameRich Felker2012-07-131-0/+5
| | | | | use the main program's PT_INTERP header if possible, since this is sure to be a correct (and hopefully absolute) pathname.
* fix broken mips a_fetch_addRich Felker2012-07-121-7/+7
| | | | sc was overwriting the result
* sigsetjmp asm for mipsRich Felker2012-07-121-0/+27
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* mipsel (little endian) supportRich Felker2012-07-121-1/+1
| | | | | | the fields in the mcontext_t are long long (for no good reason) even on 32-bit mips, so the offset of the instruction pointer (as a word) varies depending on endianness.
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