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* fix another case of cloexec/nonblock flags not matching arch valuesRich Felker2013-01-101-2/+3
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* setjmp.h: add struct tag for sigjmp_buf (GCC C++ compatibility)rofl0r2013-01-041-1/+1
| | | | | | | | | | | | | | the anonymous struct typedef with array notation breaks with GCC in C++ mode: error: non-local function 'static<anonymous struct> (& boost::signal_handler::jump_buffer())[1]' uses anonymous type this is a known GCC issue, as search results for that error msg suggest. since this is hard to work around in the calling C++ code, a fix in musl is preferable.
* add legacy header values.hrofl0r2013-01-042-0/+40
| | | | | | | | | some programs (procps, babl) expect it, and it doesn't seem to cause any harm to just add it. it's small and straightforward. since math.h also defines MAXFLOAT, we undef it in both places, before defining it.
* time.h: add BSD aliases for otherwise internal struct tm membersrofl0r2013-01-041-0/+4
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* wait.h: add linux specific, thread-related waitpid() flagsrofl0r2013-01-041-0/+4
| | | | | | | | | these flags are needed in order to be able to handle lwp id's which the kernel returns after clone() calls for new threads via ptrace(PTRACE_GETEVENTMSG). fortunately, they're the same for all archs and in the reserved namespace.
* __assert_fail(): remove _Noreturn, to get proper stacktracesrofl0r2013-01-041-1/+1
| | | | | | | | for _Noreturn functions, gcc generates code that trashes the stack frame, and so it makes it impossible to inspect the causes of an assert error in gdb. abort() is not affected (i have not yet investigated why).
* add some new-ish IPPROTO constants that were missingRich Felker2013-01-011-0/+3
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* expose [v]asprintf under _BSD_SOURCERich Felker2012-12-281-2/+2
| | | | reported/requested by Strake; simplified from the provided patch
* align EPOLL_* flags with fcntl O_* flag definitions, which vary by archRich Felker2012-12-271-2/+3
| | | | | | | | the old definitions were wrong on some archs. actually, EPOLL_NONBLOCK probably should not even be defined; it is not accepted by the kernel and it's not clear to me whether it has any use at all, even if it did work. this issue should be revisited at some point, but I'm leaving it in place for now in case some applications reference it.
* add linux extension POLLRDHUP to poll.hRich Felker2012-12-261-0/+1
| | | | | the POLL prefix is in the reserved namespace for poll.h, so no feature test macro checks are needed.
* merge a few fixes by sh4rm4Rich Felker2012-12-193-0/+22
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| * socket.h: add SO_(SND/RCV)BUFFORCE to generic blockrofl0r2012-12-191-0/+2
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| * add inet_network (required for wine)rofl0r2012-12-191-0/+1
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| * link.h: expose glibc/svr4 dynlinker debugging gluerofl0r2012-12-191-0/+19
| | | | | | | | | | | | this is already implemented in the dynliker (see struct debug), but was not exposed. we need it to do so to make wine happy...
* | math: more correct tgmath.h type cast logicSzabolcs Nagy2012-12-191-32/+17
| | | | | | | | | | | | | | __IS_FP is a portable integer constant expression now (uses that unsigned long long is larger than float) the result casting logic should work now on all compilers supporting typeof
* | math: new type cast logic in tgmath.hSzabolcs Nagy2012-12-191-25/+58
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | * return type logic is simplified a bit and fixed (see below) * return type of conj and cproj were wrong on int arguments * added comments about the pending issues (usually we don't have comments in public headers but this is not the biggest issue with tgmath.h) casting the result to the right type cannot be done in c99 (c11 _Generic can solve this but that is not widely supported), so the typeof extension of gcc is used and that the ?: operator has special semantics when one of the operands is a null pointer constant the standard is very strict about the definition of null pointer constants so typeof with ?: is still not enough so compiler specific workaround is used for now on gcc '!1.0' is a null pointer constant so we can use the old __IS_FP logic (eventhough it's non-standard) on clang (and on gcc as well) 'sizeof(void)-1' is a null pointer constant so we can use !(sizeof(*(0?(int*)0:(void*)__IS_FP(x)))-1) (this is non-standard as well), the old logic is used by default and this new one on clang
* Merge remote-tracking branch 'nsz/math'Rich Felker2012-12-153-17/+9
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| * fixed tgmath.h for functions with integral resultSzabolcs Nagy2012-12-141-7/+9
| | | | | | | | | | | | | | in tgmath.h the return values are casted to the appropriate floating-point type (if the compiler supports gcc __typeof__), this is wrong in case of ilogb, lrint, llrint, lround, llround which do not need such cast
| * math: remove long double version of bessel functions from math.hSzabolcs Nagy2012-12-111-8/+0
| | | | | | | | | | | | | | j0l,j1l,jnl,y0l,j1l,jnl are gnu extensions, bsd and posix do not have them. noone seems to use them and there is no plan to implement them any time soon so we shouldn't declare them in math.h.
| * make CMPLX macros available in complex.h in non-c11 mode as wellSzabolcs Nagy2012-12-111-2/+0
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* | add some missing macros to sys/shm.hRich Felker2012-12-151-0/+3
| | | | | | | | | | these are not specified in the standard, but in the reserved namespace, so there is no problem with defining them unconditionally.
* | add missing flags in sys/timerfd.hRich Felker2012-12-131-0/+6
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* fix regressions in app compatibility from previous sys/ipc.h changesRich Felker2012-12-101-0/+5
| | | | | | | | | | | | despite glibc using __key and __seq rather than key and seq, some applications, notably busybox, assume the names are key and seq unless glibc is being used. and the names key and seq are really the ones that _should_ be exposed when not attempting to present a standards-conforming namespace; apps should not be using names that begin with double-underscore. thus, the optimal fix is to use key and seq as the actual names of the members when in bsd/gnu source profile, and define macros for __key and __seq that redirect to plain key and seq.
* syscall() declaration belongs in unistd.h, not sys/syscall.hRich Felker2012-12-102-10/+1
| | | | | | | 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.
* fix F_DUPFD_CLOEXEC being defined twicerofl0r2012-12-061-1/+0
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* fixup for fcntl.h changesrofl0r2012-12-061-16/+15
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* add personality syscallrofl0r2012-12-061-0/+6
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* add sigandset and sigorset (needed for qemu)rofl0r2012-12-061-0/+3
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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.
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