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* syscall() declaration belongs in unistd.h, not sys/syscall.hRich Felker2012-12-101-10/+0
| | | | | | | traditionally, both BSD and GNU systems have it this way. sys/syscall.h is purely syscall number macros. presently glibc exposes the syscall declaration in unistd.h only with _GNU_SOURCE, but that does not reflect historical practice.
* fix names of ipc_perm __key/__seq elementsRich Felker2012-12-061-6/+2
| | | | | | | | | | | | | previously the names were exposed as key/seq with _GNU_SOURCE and __ipc_perm_key/__ipc_perm/seq otherwise, whereas glibc always uses __key and __seq for the names. thus, the old behavior never matched glibc, and the new behavior always does, regardless of feature test macros. for now, i'm leaving the renaming here in sys/ipc.h where it's easy to change globally for all archs, in case something turns out to be wrong, but eventually the names could just be incorporated directly into the bits headers for each arch and the renaming removed.
* add personality syscallrofl0r2012-12-061-0/+6
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* add struct msgbuf to sys/msg.hrofl0r2012-12-061-0/+7
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* ipc.h: fix gnu aliases for key and seq in struct ipc_permrofl0r2012-12-061-2/+4
| | | | | the macro was the wrong way round, additionally GNU defines __ prefixed versions, which are used by qemu.
* add obsolete futimesat()rofl0r2012-12-061-0/+1
| | | | | | this function is obsolete, however it's available as a syscall and as such qemu userspace emulation tries to forward it to the host kernel.
* feature test macros: make _GNU_SOURCE enable everythingRich Felker2012-12-031-4/+1
| | | | | | | | | | | | | | | | previously, a few BSD features were enabled only by _BSD_SOURCE, not by _GNU_SOURCE. since _BSD_SOURCE is default in the absence of other feature test macros, this made adding _GNU_SOURCE to a project not a purely additive feature test macro; it actually caused some features to be suppressed. most of the changes made by this patch actually bring musl in closer alignment with the glibc behavior for _GNU_SOURCE. the only exceptions are the added visibility of functions like strlcpy which were BSD-only due to being disliked/rejected by glibc maintainers. here, I feel the consistency of having _GNU_SOURCE mean "everything", and especially the property of it being purely additive, are more valuable than hiding functions which glibc does not have.
* fix eventfd and inotify nonblock/cloexec flags to match arch valuesRich Felker2012-11-262-4/+6
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* make sys/procfs.h mostly work on most archsRich Felker2012-11-251-18/+0
| | | | | | | | these structures are purely for use by trace/debug tools and tools working with core files. the definition of fpregset_t, which was previously here, has been removed because it was wrong; fpregset_t should be the type used in mcontext_t, not the type used in ptrace/core stuff.
* fix breakage from introducing bits header for sys/io.hRich Felker2012-11-181-0/+3
| | | | | | apparently some other archs have sys/io.h and should not break just because they don't have the x86 port io functions. provide a blank bits/io.h everywhere for now.
* add port io functions to sys/io.hRich Felker2012-11-181-2/+3
| | | | | | | based on proposal by Isaac Dunham. nonexistance of bits/io.h will cause inclusion of sys/io.h to produce an error on archs that are not supposed to have it. this is probably the desired behavior, but the error message may be a bit unusual.
* add cleaned-up sys/mtio.hRich Felker2012-11-171-0/+188
| | | | | this is mostly junk, but a few programs with tape-drive support unconditionally include it, and it might be useful.
* disable SO_REUSEPORT in sys/socket.hRich Felker2012-11-151-1/+1
| | | | | | although a number is reserved for it, this option is not implemented on Linux and does not work. defining it causes some applications to use it, and subsequently break due to its failure.
* fix numerous mips abi constant definition mismatchesRich Felker2012-11-051-0/+7
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* mips cache flush/ctl syscall support and headerRich Felker2012-11-041-0/+22
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* fix issues with wait constants in stdlib.hRich Felker2012-10-211-2/+0
| | | | | | the W* namespace is not reserved, so the nonstandard ones must be moved under extension features. also WNOHANG and WUNTRACED were missing.
* always expose accept4Rich Felker2012-09-291-4/+1
| | | | it will be in the next version of POSIX
* LFS64 alias for prlimitRich Felker2012-09-211-0/+1
| | | | issue reported/requested by Justin Cormack
* add clock_adjtime, remap_file_pages, and syncfs syscall wrappersRich Felker2012-09-162-0/+10
| | | | patch by Justin Cormack, with slight modification
* mincore syscall wrapperRich Felker2012-09-091-0/+1
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* fix up lfs64 junk for preadv/pwritevRich Felker2012-09-091-0/+5
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* add preadv/pwritev syscall wrappersRich Felker2012-09-091-0/+9
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* syscall organization overhaulRich Felker2012-09-081-18/+0
| | | | | | | | | | | | now public syscall.h only exposes __NR_* and SYS_* constants and the variadic syscall function. no macros or inline functions, no __syscall_ret or other internal details, no 16-/32-bit legacy syscall renaming, etc. this logic has all been moved to src/internal/syscall.h with the arch-specific parts in arch/$(ARCH)/syscall_arch.h, and the amount of arch-specific stuff has been reduced to a minimum. changes still need to be reviewed/double-checked. minimal testing on i386 and mips has already been performed.
* add acct, accept4, setns, and dup3 syscalls (linux extensions)Rich Felker2012-09-082-0/+79
| | | | based on patch by Justin Cormack
* remove all remaining redundant __restrict/__inline/_Noreturn defsRich Felker2012-09-083-13/+3
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* sysmacros major/minor: result should have type unsigned int, not dev_tRich Felker2012-09-081-2/+2
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* add timerfd interfaces (untested)Rich Felker2012-09-081-0/+18
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* default features: make musl usable without feature test macrosRich Felker2012-09-0714-15/+24
| | | | | | | | | | 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.
* use restrict everywhere it's required by c99 and/or posix 2008Rich Felker2012-09-065-13/+43
| | | | | | | | 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.
* avoid "inline" in public headers for strict c89 compatibilityRich Felker2012-09-021-0/+4
| | | | | | | | | 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.
* type exposure fixes in sys/sem.hRich Felker2012-08-241-2/+5
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* add missing xattr functionsRich Felker2012-08-151-0/+3
| | | | not sure why these were originally omitted..
* fix socket.h on mipsRich Felker2012-08-051-0/+3
| | | | | why does mips have to be gratuitously incompatible in every possible imaginable way?
* add ioperm/iopl syscallsRich Felker2012-07-231-0/+13
| | | | | | | | | | | | | | | 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 extended attributes syscallsRich Felker2012-07-231-0/+27
| | | | based on patch by orc and Isaac Dunham, with some fixes.
* workaround another sendmsg kernel bug on 64-bit machinesRich Felker2012-07-121-7/+0
| | | | | | | | | 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.
* add process_vm_readv and process_vm_writev syscall wrappersRich Felker2012-06-231-0/+9
| | | | based on a patch submitted by Kristian L. <email@thexception.net>
* header file fixes: multiple include guard consistency and correctnessRich Felker2012-06-153-6/+6
| | | | | | | one file was reusing another file's macro name, and many had inconsistent underscores and application of SYS prefix, etc. patch by Szabolcs Nagy (nsz)
* fix sysinfo, try 2. it seems to work this time.Rich Felker2012-06-071-10/+10
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* sysinfo struct was utter nonsense; no idea where it came from.Rich Felker2012-06-071-4/+3
| | | | | this broke the busybox "free" utility (memory reporting) and possibly other things like uptime.
* _GNU_SOURCE is supposed to imply _LARGEFILE64_SOURCERich Felker2012-06-047-7/+7
| | | | | | | | | this is ugly and stupid, but now that the *64 symbol names exist, a lot of broken GNU software detects them in configure, then either breaks during build due to missing off64_t definition, or attempts to compile without function declarations/prototypes. "fixing" it here is easier than telling everyone to add yet another feature test macro to their builds.
* various header cleanups, some related to _BSD_SOURCE additionRich Felker2012-05-221-4/+4
| | | | | | there is no reason to avoid multiple identical macro definitions; this is perfectly legal C, and even with the maximal warning options enabled, gcc does not issue any warning for it.
* support _BSD_SOURCE feature test macroRich Felker2012-05-225-5/+9
| | | | | patch by Isaac Dunham. matched closely (maybe not exact) to glibc's idea of what _BSD_SOURCE should make visible.
* 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.
* add *64 junk for sys/*.h headersRich Felker2012-05-047-0/+50
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* legacy junk compatibility grab-bagRich Felker2012-04-181-7/+22
| | | | | | - add the rest of the junk traditionally in sys/param.h - add prototypes for some nonstandard functions - add _GNU_SOURCE to their source files so the compiler can check proto
* fix typo in inotify.hRich Felker2012-02-071-1/+1
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* apparently gnu caddr_t is supposed to be char *, not unsigned longRich Felker2012-02-011-1/+1
| | | | this type should never be used anyway, but some old junk uses it..