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2012-08-05make configure accept mipselRich Felker-1/+1
2012-08-05dlsym RTLD_NEXT support for mipsRich Felker-0/+15
untested
2012-08-05fix socket.h on mipsRich Felker-0/+6
why does mips have to be gratuitously incompatible in every possible imaginable way?
2012-08-05align mips _init/_fini functionsRich Felker-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.
2012-08-05more changes that were lost when committing mips dynamic linkerRich Felker-0/+4
2012-08-05more stuff lost committing mips dynamic linkerRich Felker-2/+2
2012-08-05fix change lost in the process of integrating mips dynamic linkerRich Felker-2/+2
2012-08-05remove configure check disabling shared libraries on mipsRich Felker-4/+0
2012-08-05mips dynamic linker supportRich Felker-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.
2012-08-05make dynlink.lo depend on reloc.h in makefileRich Felker-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".
2012-08-05more cleanup of dynamic linker internalsRich Felker-8/+9
2012-08-05more dynamic linker internals cleanupRich Felker-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.
2012-08-05dynamic linker internals cleanupRich Felker-5/+7
2012-08-05floating point support for arm setjmp/longjmpRich Felker-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.
2012-08-02release notes for 0.9.3v0.9.3Rich Felker-0/+35
2012-08-02abstract out compiler runtime library for linking libc.soRich Felker-1/+2
this allows config.mak to override the default -lgcc for building with other compilers such as pcc/clang/etc.
2012-08-02fix argument type error on wcwidth functionRich Felker-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.
2012-08-02fix missing static in getusershell (namespace pollution)Rich Felker-1/+1
2012-07-31optimize mempcpy to minimize need for data saved across the callRich Felker-2/+1
2012-07-27optimize arm setjmp/longjmp register saving/loadingRich Felker-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.
2012-07-27save AT_HWCAP from auxv for subsequent use in machine-specific codeRich Felker-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.
2012-07-24retry on cas failures in sem_trywaitRich Felker-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.
2012-07-23gcc wrapper improvement: leave libgcc dir in the library pathRich Felker-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.
2012-07-23add ioperm/iopl syscallsRich Felker-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...
2012-07-23add splice and vmsplice syscallsRich Felker-0/+28
based on patches by orc and Isaac Dunham.
2012-07-23add extended attributes syscallsRich Felker-0/+74
based on patch by orc and Isaac Dunham, with some fixes.
2012-07-23add pipe2 syscallRich Felker-0/+9
based on patch by orc and Isaac Dunham, with some details fixed.
2012-07-22remove scanf dependency from getaddrinfo /etc/services supportRich Felker-5/+4
2012-07-22getaddrinfo /etc/services lookup supportRich Felker-3/+16
2012-07-22fix namespace issue in prototypes in math.hRich Felker-2/+2
2012-07-22fix wrong size for sigjmp_buf signal set arrayRich Felker-1/+1
128 is the size in bytes, not longs.
2012-07-22add floating point register saving/restoring to mips setjmp/longjmpRich Felker-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.
2012-07-22make getservby*_r return error code rather than -1 (and using errno)Rich Felker-19/+35
untested but should be correct..
2012-07-21fix logic error for skipping failed interfaces in if_nameindexRich Felker-8/+7
2012-07-19fix typo in aio.hRich Felker-1/+1
2012-07-14fix getservby*() with null pointer for protocol argumentRich Felker-0/+8
not sure this is the best fix but it should work
2012-07-14avoid blx instruction which does not exist on armv4t or armv4Rich Felker-1/+2
2012-07-13make dynamic linker tell the debugger its own pathnameRich Felker-0/+5
use the main program's PT_INTERP header if possible, since this is sure to be a correct (and hopefully absolute) pathname.
2012-07-12fix broken mips a_fetch_addRich Felker-7/+7
sc was overwriting the result
2012-07-12sigsetjmp asm for mipsRich Felker-0/+27
2012-07-12mipsel (little endian) supportRich Felker-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.
2012-07-12workaround another sendmsg kernel bug on 64-bit machinesRich Felker-7/+42
the kernel wrongly expects the cmsg length field to be size_t instead of socklen_t. in order to work around the issue, we have to impose a length limit and copy to a local buffer. the length limit should be more than sufficient for any real-world use; these headers are only used for passing file descriptors and permissions between processes over unix sockets.
2012-07-12fix redef of sigprocmask constants on mipsRich Felker-2/+3
this fix is easier than trying to reorder the header stuff
2012-07-12disable dynamic linking on mips for now (broken)Rich Felker-0/+5
2012-07-12more mips bits-header fixesRich Felker-2/+8
signal handling was very broken because of this
2012-07-12fix mips syscalls with long long argsRich Felker-1/+1
like arm, mips requires 64-bit arguments to be "aligned" on an even register boundary.
2012-07-12fix several locks that weren't updated right for new futex-based __lockRich Felker-10/+10
these could have caused memory corruption due to invalid accesses to the next field. all should be fixed now; I found the errors with fgrep -r '__lock(&', which is bogus since the argument should be an array.
2012-07-12fix pthread_kill unlockingRich Felker-1/+1
it had not been updated for the futex-based locks
2012-07-12fix breakage of x86_64 sigaction from recent changes for mipsRich Felker-1/+1
2012-07-12fix mips mcontext_t structure sizeRich Felker-1/+5
otherwise offs in ucontext_t will be wrong, and break code that inspects or modifies the signal makes (including cancellation code).
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