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* add struct msgbuf to sys/msg.hrofl0r2012-12-061-0/+7
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* unistd.h: fix wrong type for gid_t argumentrofl0r2012-12-061-1/+1
| | | | | the prototype is defined with const gid_t* rather than const gid_t[]. it was already correctly defined in grp.h.
* 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| | | | | | this function is obsolete, however it's available as a syscall and as such qemu userspace emulation tries to forward it to the host kernel.
* fcntl.h: add some linux-specific F_ macrosrofl0r2012-12-061-0/+17
| | | | | thankfully these are all generic across archs. the DN_ macros are for usage with F_NOTIFY.
* tcp.h: add SOL_TCP, analoguous to udp.hrofl0r2012-12-061-0/+2
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* fix inefficiency of math.h isless, etc. macrosRich Felker2012-12-051-15/+30
| | | | | | | | | | | previously, everything was going through an intermediate conversion to long double, which caused the extern __fpclassifyl function to get invoked, preventing virtually all optimizations of these operations. with the new code, tests on constant float or double arguments compile to a constant 0 or 1, and tests on non-constant expressions are efficient. I may later add support for __builtin versions on compilers that support them.
* add scsi headers scsi.h and sg.hRich Felker2012-12-052-0/+279
| | | | | | | | due to some historical oddity, these are considered libc headers rather than kernel headers. the kernel used to provide them too, but it seems modern kernels do not install them, so let's just do the easiest thing and provide them. stripped-down versions provided by John Spencer.
* use __builtin_offsetof to implement offsetof when possibleRich Felker2012-12-051-0/+4
| | | | | | apparently recent gcc versions have intentionally broken the traditional definition by treating it as a non-constant expression. the traditional definition may also be problematic for c++ programs.
* add _ALL_SOURCE as an alias for _GNU_SOURCE/enable-everythingRich Felker2012-12-031-0/+4
| | | | | reportedly this is a semi-common practice among some BSDs and a few other systems, and will improve application compatibility.
* feature test macros: make _GNU_SOURCE enable everythingRich Felker2012-12-035-18/+4
| | | | | | | | | | | | | | | | 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 a couple issues in the inttypes.h PRI/SCN macrosRich Felker2012-12-021-22/+25
| | | | | | | | | | | | | | | | | | | | | | | most importantly, the format/scan macros for the [u]int_fast16_t and [u]int_fast32_t types were defined incorrectly assuming these types would match the native word/pointer size. this is incorrect on any 64-bit system; the "fast" types for 16- and 32-bit integers are simply int. another issue which was "only a warning" (despite being UB) is that the choice of "l" versus "ll" was incorrect for 64-bit types on 64-bit machines. while it would "work" to always use "long long" for 64-bit types, we use "long" on 64-bit machines to match what glibc does and what the ABI documents recommend. the macro definitions were probably right in very old versions of musl, but became wrong when we aligned most closely with the 'standard' ABI. checking UINTPTR_MAX is an easy way to get the system wordsize without pulling in new headers. finally, the useless __PRIPTR macro to allow the underlying type of [u]intptr_t to vary has been removed. we are using "long" on all targets, and thankfully this matches what glibc does, so I do not envision ever needing to change it. thus, the "l" has just been incorporated directly in the strings.
* provide NSIG under _BSD_SOURCE (default) as well as _GNU_SOURCERich Felker2012-11-301-1/+4
| | | | | this fixes a regression related to the changes made to bits/signal.h between 0.9.7 and 0.9.8 that broke some (non-portable) software.
* fix some restrict-qualifier mismatches in newly added interfacesRich Felker2012-11-271-2/+2
| | | | | these should have little/no practical impact but they're needed for strict conformance.
* fix eventfd and inotify nonblock/cloexec flags to match arch valuesRich Felker2012-11-262-4/+6
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* fix missing limits when only _BSD_SOURCE is definedRich Felker2012-11-261-1/+1
| | | | | | | the missing check did not affect the default profile, since it has both _XOPEN_SOURCE and _BSD_SOURCE defined, but it did break programs which explicitly define _BSD_SOURCE, causing it to be the only feature test macro present.
* fixup mcontext stuff to expost gregset_t/fpregset_t as appropriateRich Felker2012-11-252-2/+3
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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.
* add back NSIG, removed from powerpc in last commit, but for all archsRich Felker2012-11-211-0/+1
| | | | | | | | unlike the previous definition, NSIG/_NSIG is supposed to be one more than the highest signal number. adding this will allow simplifying libc-internal code that makes signal-related syscalls, which can be done as a later step. some apps might use it too; while this usage is questionable, it's at least not insane.
* 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.
* fcntl.h: O_SEARCH was missing for powerpcrofl0r2012-11-181-0/+4
| | | | | | put some macros that do not differ between architectures in the main header and remove from bits. restructure mips header so it has the same structure as the others.
* 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.
* add stub versions of some missing optional pthread interfacesRich Felker2012-11-171-0/+5
| | | | | | | | | | | | | priority inheritance is not yet supported, and priority protection probably will not be supported ever unless there's serious demand for it (it's a fairly heavy-weight feature). per-thread cpu clocks would be nice to have, but to my knowledge linux is still not capable of supporting them. glibc fakes them by using the _process_ cpu-time clock and subtracting the thread creation time, which gives seriously incorrect semantics (worse than not supporting the feature at all), so until there's a way to do it right, it will remain as a stub that always fails.
* 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.
* complex: add C11 CMPLX macros and replace cpack with themSzabolcs Nagy2012-11-131-0/+9
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* report support of TPS option in unistd.h and sysconfRich Felker2012-11-111-0/+1
| | | | also update another newish feature in sysconf, stackaddr
* add support for thread scheduling (POSIX TPS option)Rich Felker2012-11-113-0/+12
| | | | | | | | | | linux's sched_* syscalls actually implement the TPS (thread scheduling) functionality, not the PS (process scheduling) functionality which the sched_* functions are supposed to have. omitting support for the PS option (and having the sched_* interfaces fail with ENOSYS rather than omitting them, since some broken software assumes they exist) seems to be the only conforming way to do this on linux.
* 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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* avoid breakage if somebody wrongly defines empty feature test macrosRich Felker2012-11-012-3/+3
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* add dl_iterate_phdr interfaceRich Felker2012-10-311-0/+27
| | | | | | | | | | patches by Alex Caudill (npx). the dynamic-linked version is almost identical to the final submitted patch; I just added a couple missing lines for saving the phdr address when the dynamic linker is invoked directly to run a program, and removed a couple to avoid introducing another unnecessary type. the static-linked version is based on npx's draft. it could use some improvements which are contingent on the startup code saving some additional information for later use.
* fix issues with wait constants in stdlib.hRich Felker2012-10-212-6/+5
| | | | | | the W* namespace is not reserved, so the nonstandard ones must be moved under extension features. also WNOHANG and WUNTRACED were missing.
* complex: make _Complex_I work with gcc -std=c99 -pedantic-errorsnsz2012-10-211-0/+4
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* assert() is supposed to have type voidRich Felker2012-10-171-1/+1
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* add memmem function (gnu extension)Rich Felker2012-10-151-0/+1
| | | | based on strstr. passes gnulib tests and a few quick checks of my own.
* microblaze TLS relocation support, completely untestedRich Felker2012-10-151-1/+8
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* add getopt reset supportRich Felker2012-09-301-1/+1
| | | | | | | based on proposed patches by Daniel Cegiełka, with minor changes: - use a weak symbol for optreset so it doesn't clash with namespace - also reset optpos (position in multi-option arg like -lR) - also make getopt_long support reset
* define some _POSIX_* macros that were omitted; required for XSI conformanceRich Felker2012-09-301-0/+3
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* always expose accept4Rich Felker2012-09-291-4/+1
| | | | it will be in the next version of POSIX
* always expose dup3 and pipe2Rich Felker2012-09-291-2/+2
| | | | they will be in the next version of POSIX
* microblaze portRich Felker2012-09-291-0/+24
| | | | | | based on initial work by rdp, with heavy modifications. some features including threads are untested because qemu app-level emulation seems to be broken and I do not have a proper system image for testing.
* 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 Felker2012-09-163-0/+11
| | | | patch by Justin Cormack, with slight modification
* fix stupid bug in updating of O_ACCMODE for O_SEARCH supportRich Felker2012-09-151-1/+1
| | | | this could cause major bugs, and warrants a fix release right away.
* strsep is BSD|GNU, not GNU-only; it's originally from BSDRich Felker2012-09-131-1/+4
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* add O_PATH/O_SEARCH support to fcntl.hRich Felker2012-09-131-1/+1
| | | | | | | I'm not 100% sure that Linux's O_PATH meets the POSIX requirements for O_SEARCH, but it seems very close if not perfect. and old kernels ignore it, so O_SEARCH will still work as desired as long as the caller has read permissions to the directory.
* add setdomainname syscall, fix getdomainname (previously a stub)Rich Felker2012-09-091-0/+1
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* 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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