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* fix signalfd not to ignore flagsRich Felker2013-04-071-1/+12
| | | | | | also include fallback code for broken kernels that don't support the flags. as usual, the fallback has a race condition that can leak file descriptors.
* remove __SYSCALL_SSLEN arch macro in favor of using public _NSIGRich Felker2013-03-263-3/+6
| | | | | | | | | | | | | | the issue at hand is that many syscalls require as an argument the kernel-ABI size of sigset_t, intended to allow the kernel to switch to a larger sigset_t in the future. previously, each arch was defining this size in syscall_arch.h, which was redundant with the definition of _NSIG in bits/signal.h. as it's used in some not-quite-portable application code as well, _NSIG is much more likely to be recognized and understood immediately by someone reading the code, and it's also shorter and less cluttered. note that _NSIG is actually 65/129, not 64/128, but the division takes care of throwing away the off-by-one part.
* remove __arch_prctl alias for arch_prctlRich Felker2012-12-071-3/+1
| | | | | | | if there's evidence of any use for it, we can add it back later. as far as I can tell, glibc has it only for internal use (and musl uses a direct syscall in that case rather than a function call), not for exposing it to applications.
* move new linux syscall wrapper functions to proper source dirRich Felker2012-12-072-0/+16
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* add port io functions to sys/io.hRich Felker2012-11-182-2/+4
| | | | | | | 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.
* mips cache flush/ctl syscall support and headerRich Felker2012-11-041-0/+18
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* move accept4, dup3, and pipe2 to non-linux-specific locationsRich Felker2012-09-293-27/+0
| | | | | these interfaces have been adopted by the Austin Group for inclusion in the next version of POSIX.
* fix some indention-with-spaces that crept inRich Felker2012-09-292-4/+4
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* LFS64 alias for prlimitRich Felker2012-09-211-0/+3
| | | | issue reported/requested by Justin Cormack
* add clock_adjtime, remap_file_pages, and syncfs syscall wrappersRich Felker2012-09-163-0/+25
| | | | patch by Justin Cormack, with slight modification
* fix another ppoll issue (missing sigset_t size argument)Rich Felker2012-09-101-1/+1
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* fix ppoll with null timeout argumentRich Felker2012-09-101-2/+2
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* add linux ppoll syscall wrapperRich Felker2012-09-091-0/+9
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* reenable sync_file_range; should no longer break on mipsRich Felker2012-09-091-2/+2
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* disable sync_file_range for nowRich Felker2012-09-081-2/+3
| | | | | | | something is wrong with the logic for the argument layout, resulting in compile errors on mips due to too many args to syscall... further information on how it's supposed to work will be needed before it can be reactivated.
* add acct, accept4, setns, and dup3 syscalls (linux extensions)Rich Felker2012-09-083-0/+28
| | | | based on patch by Justin Cormack
* add linux tee syscallRich Felker2012-09-081-0/+8
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* add linux sync_file_range syscallRich Felker2012-09-081-0/+16
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* move fallocate syscall wrapper to linux-specific syscalls dirRich Felker2012-09-081-0/+9
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* add linux readahead syscallRich Felker2012-09-081-0/+8
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* add timerfd interfaces (untested)Rich Felker2012-09-081-0/+17
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* cleanup src/linux and src/misc trees, etc.Rich Felker2012-09-0731-404/+107
| | | | | | | | | | | | 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.
* further use of _Noreturn, for non-plain-C functionsRich Felker2012-09-061-4/+4
| | | | | | | | | | | | | | | | | | | 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.
* handle null arguments to legacy bsd err.h functionsRich Felker2012-08-151-2/+2
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* add missing xattr functionsRich Felker2012-08-151-0/+15
| | | | not sure why these were originally omitted..
* fix (hopefully) all hard-coded 8's for kernel sigset_t sizeRich Felker2012-08-092-2/+2
| | | | | | | | | | 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 ioperm/iopl syscallsRich Felker2012-07-232-0/+18
| | | | | | | | | | | | | | | 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 Felker2012-07-232-0/+16
| | | | based on patches by orc and Isaac Dunham.
* add extended attributes syscallsRich Felker2012-07-231-0/+47
| | | | based on patch by orc and Isaac Dunham, with some fixes.
* add pipe2 syscallRich Felker2012-07-231-0/+8
| | | | based on patch by orc and Isaac Dunham, with some details fixed.
* add process_vm_readv and process_vm_writev syscall wrappersRich Felker2012-06-231-0/+13
| | | | based on a patch submitted by Kristian L. <email@thexception.net>
* add vhangup syscall wrapperRich Felker2012-06-191-0/+8
| | | | | | request/patch by william haddonthethird, slightly modifed to add _GNU_SOURCE feature test macro so that the compiler can verify the prototype matches.
* add init_module/delete_module syscall wrappersRich Felker2012-06-131-0/+11
| | | | | | | these are not exposed publicly in any header, but the few programs that use them (modutils/kmod, etc.) are declaring the functions themselves rather than making the syscalls directly, and it doesn't really hurt to have them (same as the capset junk).
* add deprecated capabilities functionsRich Felker2012-06-131-0/+11
| | | | | | | these were left in glibc for binary compatibility after the public part of the interface was removed, and libcap kept using them (with its own copy of the header files) rather than just making the syscalls directly. might as well add them since they're so small...
* fix typo in utimes function that made it mess up file timesRich Felker2012-05-211-1/+1
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* add linux-specific unshare syscall wrapperRich Felker2012-04-291-0/+8
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* legacy junk compatibility grab-bagRich Felker2012-04-181-0/+1
| | | | | | - 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
* remove junk sincos implementations in preparation to merge nsz's real onesRich Felker2012-03-163-24/+0
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* implement sincosf and sincosl functions; add prototypesRich Felker2012-03-152-0/+16
| | | | | presumably broken gcc may generate calls to these, and it's said that ffmpeg makes use of sincosf.
* add linux setfs[ug]id syscall wrappersRich Felker2012-01-282-0/+16
| | | | patch by Jeremy Huntwork
* fix broken reboot wrapper (syscall needs extra silly magic arguments...)Rich Felker2011-12-231-1/+1
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* make getmntent_r discard long lines when it returns error, not seek backRich Felker2011-09-281-2/+1
| | | | | seeking back can be performed by the caller, but if the caller doesn't expect it, it will result in an infinite loop of failures.
* improve error handling in mntent stuff...Rich Felker2011-09-271-2/+9
| | | | not sure if this is correct/ideal. it needs further attention.
* fix missing va_end in prctl syscall wrapperRich Felker2011-09-271-0/+1
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* cleanup various minor issues reported by nszRich Felker2011-09-261-2/+2
| | | | | | | | | the changes to syscall_ret are mostly no-ops in the generated code, just cleanup of type issues and removal of some implementation-defined behavior. the one exception is the change in the comparison value, which is fixed so that 0xf...f000 (which in principle could be a valid return value for mmap, although probably never in reality) is not treated as an error return.
* fix stubbed-out reboot callRich Felker2011-08-021-3/+2
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* fix brk/sbrk behavior to match the real legacy functionsRich Felker2011-05-222-2/+4
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* eventfd syscall wrapper and read/write wrappersRich Felker2011-05-083-0/+21
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* fix initgroups (uninitialized count passed to getgrouplist)Rich Felker2011-04-201-1/+1
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* add syscall wrapper for flockRich Felker2011-04-131-0/+7
| | | | | | | | it should be noted that flock does not mix well with standard fcntl locking, but nonetheless some applications will attempt to use flock instead of fcntl if both exist. options to configure or small patches may be needed. debian maintainers have plenty of experience with this unfortunate situation...
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