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2013-08-02add missing c++ extern "C" wrapping to link.hRich Felker-0/+8
2013-08-02provide useless 64-bit fcntl macros with _LARGEFILE64_SOURCERich Felker-0/+3
this is all useless but part of the API, which is part of the _GNU_SOURCE API, so something may need them.
2013-07-30add macros for new(ish) prctl commandsRich Felker-0/+37
2013-07-30fix some prctl macros that were incorrectly copied into this fileRich Felker-3/+3
2013-07-27add wrapper headers, with warnings, for various incorrect names under sysRich Felker-0/+11
also add a warning to the existing sys/poll.h. the warning is absent from sys/dir.h because it is actually providing a slightly different API to the program, and thus just replacing the #include directive is not a valid fix to programs using this one.
2013-07-27a few more fixes for unistd/sysconf feature reportingRich Felker-0/+1
2013-07-26report presence of ADV and MSG options in unistd.h and sysconfRich Felker-0/+2
2013-07-26report that posix_spawn is supported in unistd.h and sysconfRich Felker-0/+1
2013-07-24fix incorrect type for new si_call_addr in siginfo_tRich Felker-3/+3
apparently the original kernel commit's i386 version of siginfo.h defined this field as unsigned int, but the asm-generic file always had void *. unsigned int is obviously not a suitable type for an address, in a non-arch-specific file, and glibc also has void * here, so I think void * is the right type for it. also fix redundant type specifiers.
2013-07-25add protocol families PF_IB and PF_VSOCK to socket.hSzabolcs Nagy-1/+5
linux commit 8d36eb01da5d371feffa280e501377b5c450f5a5 (2013-05-29) added PF_IB for InfiniBand linux commit d021c344051af91f42c5ba9fdedc176740cbd238 (2013-02-06) added PF_VSOCK for VMware sockets
2013-07-24update siginfo according to linux headersSzabolcs Nagy-1/+13
linux commit a0727e8ce513fe6890416da960181ceb10fbfae6 (2012-04-12) added siginfo fields for SIGSYS (seccomp uses it) linux commit ad5fa913991e9e0f122b021e882b0d50051fbdbc (2009-09-16) added siginfo field and si_code values for SIGBUS (hwpoison signal)
2013-07-24add PTRACE_PEEKSIGINFO to ptrace.hSzabolcs Nagy-0/+11
added in linux-v3.10 commit 84c751bd4aebbaae995fe32279d3dba48327bad4 using stdint.h types for the new ptrace_peeksiginfo_args struct
2013-07-24add if_ether.h constants ETH_P_802_3_MIN and ETH_P_BATMANSzabolcs Nagy-0/+3
see linux commits 4f99ad51292078cc47343c17d3870764588cff73 and e5c5d22e8dcf7c2d430336cbf8e180bd38e8daf1
2013-07-24add CLOCK_TAI (and CLOCK_SGI_CYCLE) clock ids to time.hSzabolcs Nagy-0/+2
added in linux-v3.10 commit 1ff3c9677bff7e468e0c487d0ffefe4e901d33f4
2013-07-24remove TCP_COOKIE_TRANSACTIONS from tcp.hSzabolcs Nagy-1/+0
removed in linux-v3.10 in commit 1a2c6181c4a1922021b4d7df373bba612c3e5f04
2013-07-24add SO_SELECT_ERR_QUEUE to socket.hSzabolcs Nagy-0/+1
introduced in linux-v3.10 commit 7d4c04fc170087119727119074e72445f2bb192b
2013-07-24change jmp_buf to share an underlying type and struct tag with sigjmp_bufRich Felker-7/+6
this is necessary to meet the C++ ABI target. alternatives were considered to avoid the size increase for non-sig jmp_buf objects, but they seemed to have worse properties. moreover, the relative size increase is only extreme on x86[_64]; one way of interpreting this is that, if the size increase from this patch makes jmp_buf use too much memory, then the program was already using too much memory when built for non-x86 archs.
2013-07-22undefine internal-use type macros at the end of alltypes.hRich Felker-0/+4
this patch is something of a compromise for a compatibility regression discovered after the header refactoring: libtiff uses _Int64 for its own use. this is absolutely wrong, invalid C, and should not be supported, but it's also frustrating for users when code that used to work suddenly breaks. rather than leave the breakage in place or change musl internals to accommodate broken software, I've found a change that makes the problem go away and improves musl. by undefining these macros at the end of alltypes.h, the temptation to use them in other headers is removed. (for example, I almost used _Int64 in sys/types.h to define u_int64_t rather than adding it back to alltypes.h.) by confining use of these macros to alltypes.h, we keep it easy to go back and change the implementation of alltypes later, if needed.
2013-07-22move register_t and u_int64_t (back) to alltypesRich Felker-2/+7
during the header refactoring, I had moved u_int64_t out of alltypes under the assumption that we could just use long long everywhere. however, it seems some broken applications make inconsistent mixed use of u_int64_t and uint64_t, resulting in build errors when the underlying type differs.
2013-07-22fix regression in size of nlink_t (broken stat struct) on x86_64Rich Felker-1/+1
rather than moving nlink_t back to the arch-specific file, I've added a macro _Reg defined to the canonical type for register-size values on the arch. this is not the same as _Addr for (not-yet-supported) 32-on-64 pseudo-archs like x32 and mips n32, so a new macro was needed.
2013-07-22make regoff_t and regex_t match C++ ABIRich Felker-3/+3
for regoff_t, it's impossible to match on 64-bit archs because glibc defined the type in a non-conforming way. however this change makes the type match on 32-bit archs.
2013-07-22make pthread_key_t unsigned to match ABIRich Felker-1/+1
2013-07-22make pthread attribute types structs, even when they just have one fieldRich Felker-3/+3
this change is to get the right tags for C++ ABI matching. it should have no other effects.
2013-07-22change wint_t to unsignedRich Felker-4/+4
aside from the obvious C++ ABI purpose for this change, it also brings musl into alignment with the compiler's idea of the definition of wint_t (use in -Wformat), and makes the situation less awkward on ARM, where wchar_t is unsigned. internal code using wint_t and WEOF was checked against this change, and while a few cases of storing WEOF into wchar_t were found, they all seem to operate properly with the natural conversion from unsigned to signed.
2013-07-22refactor headers, especially alltypes.h, and improve C++ ABI compatRich Felker-87/+133
the arch-specific bits/alltypes.h.sh has been replaced with a generic alltypes.h.in and minimal arch-specific bits/alltypes.h.in. this commit is intended to have no functional changes except: - exposing additional symbols that POSIX allows but does not require - changing the C++ name mangling for some types - fixing the signedness of blksize_t on powerpc (POSIX requires signed) - fixing the limit macros for sig_atomic_t on x86_64 - making dev_t an unsigned type (ABI matching goal, and more logical) in addition, some types that were wrongly defined with long on 32-bit archs were changed to int, and vice versa; this change is non-functional except for the possibility of making pointer types mismatch, and only affects programs that were using them incorrectly, and only at build-time, not runtime. the following changes were made in the interest of moving non-arch-specific types out of the alltypes system and into the headers they're associated with, and also will tend to improve application compatibility: - netdb.h now includes netinet/in.h (for socklen_t and uint32_t) - netinet/in.h now includes sys/socket.h and inttypes.h - sys/resource.h now includes sys/time.h (for struct timeval) - sys/wait.h now includes signal.h (for siginfo_t) - langinfo.h now includes nl_types.h (for nl_item) for the types in stdint.h: - types which are of no interest to other headers were moved out of the alltypes system. - fast types for 8- and 64-bit are hard-coded (at least for now); only the 16- and 32-bit ones have reason to vary by arch. and the following types have been changed for C++ ABI purposes; - mbstate_t now has a struct tag, __mbstate_t - FILE's struct tag has been changed to _IO_FILE - DIR's struct tag has been changed to __dirstream - locale_t's struct tag has been changed to __locale_struct - pthread_t is defined as unsigned long in C++ mode only - fpos_t now has a struct tag, _G_fpos64_t - fsid_t's struct tag has been changed to __fsid_t - idtype_t has been made an enum type (also required by POSIX) - nl_catd has been changed from long to void * - siginfo_t's struct tag has been removed - sigset_t's has been given a struct tag, __sigset_t - stack_t has been given a struct tag, sigaltstack - suseconds_t has been changed to long on 32-bit archs - [u]intptr_t have been changed from long to int rank on 32-bit archs - dev_t has been made unsigned summary of tests that have been performed against these changes: - nsz's libc-test (diff -u before and after) - C++ ABI check symbol dump (diff -u before, after, glibc) - grepped for __NEED, made sure types needed are still in alltypes - built gcc 3.4.6
2013-07-19add UIO_MAXIOV macro in sys/uio.hRich Felker-0/+2
while there's no POSIX namespace provision for UIO_* in uio.h, this exact macro name is reserved in XBD 2.2.2. apparently some glibc-centric software expects it to exist, so let's provide it.
2013-07-18fix FILENAME_MAX to match PATH_MAXRich Felker-1/+1
POSIX is not clear on whether it includes the termination, but ISO C requires that it does. the whole concept of this macro is rather useless, but it's better to be correct anyway.
2013-07-06add NFDBITS in sys/select.h with appropriate feature testsRich Felker-0/+3
the main use for this macro seems to be knowing the correct allocation granularity for dynamic-sized fd_set objects. such usage is non-conforming and results in undefined behavior, but it is widespread in applications.
2013-07-03add legacy sys/ttydefaults.h headerrofl0r-0/+39
2013-07-03add legacy scsi/scsi_ioctl.h headerrofl0r-0/+11
2013-07-03paths.h: remove cruftrofl0r-9/+0
a research in debian codesearch and grepping over the pkgsrc directory tree have shown that these macros are all either unused, or defined by programs in case they need them.
2013-07-01add stubs for additional legacy ether.h functionsRich Felker-3/+3
these would not be expensive to actually implement, but reading /etc/ethers does not sound like a particularly useful feature, so for now I'm leaving them as stubs.
2013-06-29fix shifts possibly larger than type in major() macroRich Felker-1/+1
in theory this should not be an issue, since major() should only be applied to type dev_t, which is 64-bit. however, it appears some applications are not using dev_t but a smaller integer type (which works on Linux because the kernel's dev_t is really only 32-bit). to avoid the undefined behavior, do it as two shifts.
2013-06-29implement minimal dlinfo functionRich Felker-0/+3
2013-06-28work around wrong kernel type for sem_nsems member of struct semid_dsRich Felker-1/+9
rejecting invalid values for n is fine even in the case where a new sem will not be created, since the kernel does its range checks on n even in this case as well. by default, the kernel will bound the limit well below USHRT_MAX anyway, but it's presumably possible that an administrator could override this limit and break things.
2013-06-28add missing type shmatt_t in sys/shm.hRich Felker-0/+2
this type is not really intended to be used; it's just there to allow implementations to choose the type for the shm_nattch member of struct shmid_sh, presumably since historical implementations disagreed on the type. in any case, it needs to be there, so now it is.
2013-06-27minor compatibility fixes in utmp.h and fixing mismatch with paths.hRich Felker-4/+10
the pathnames prefixed with /dev/null/ are guaranteed never to be valid. the previous use of /dev/null alone was mildly dangerous in that bad software might attempt to unlink the name when it found a non-regular file there and create a new file.
2013-06-26document in sysconf and unistd.h that per-thread cpu clocks existRich Felker-0/+1
2013-06-25respect iso c namespace in stdio.h and wchar.h regarding va_listRich Felker-17/+19
despite declaring functions that take arguments of type va_list, these headers are not permitted by the c standard to expose the definition of va_list, so an alias for the type must be used. the name __isoc_va_list was chosen to convey that the purpose of this alternate name is for iso c conformance, and to avoid the multitude of names which gcc mangles with its hideous "fixincludes" monstrosity, leading to serious header breakage if these "fixes" are run.
2013-06-25implement inet_lnaof, inet_netof, and inet_makeaddrRich Felker-1/+4
also move all legacy inet_* functions into a single file to avoid wasting object file and compile time overhead on them. the added functions are legacy interfaces for working with classful ipv4 network addresses. they have no modern usefulness whatsoever, but some programs unconditionally use them anyway, and they're tiny.
2013-06-25add ether_aton[_r] and ether_ntoa[_r] functionsRich Felker-0/+14
based on patch by Strake with minor stylistic changes, and combined into a single file. this patch remained open for a long time due to some question as to whether ether_aton would be better implemented in terms of sscanf, and it's time something was committed, so here it is.
2013-06-08add clock id macros for a number of new(ish) Linux-specific clocksRich Felker-0/+6
arguably CLOCK_MONOTONIC should be redirected to CLOCK_BOOTTIME with a fallback for old kernels that don't support it, since Linux's CLOCK_BOOTTIME semantics seem to match the spirit of the POSIX requirements for CLOCK_MONOTONIC better than Linux's version of CLOCK_MONOTONIC does. however, this is a change that would require further discussion and research, so for now, I'm simply making them all available.
2013-06-08fix the type of CLOCKS_PER_SEC to match new clock_t typeRich Felker-1/+1
originally it was right on 32-bit archs and wrong on 64-bit, but after recent changes it was wrong everywhere. with this commit, it's now right everywhere.
2013-06-07improve handling of nonstandard fields in struct tmRich Felker-4/+5
defining tm_gmtoff and tm_zone as macros was breaking some application code that used these names for its own purposes.
2013-05-26fix the prototype of settimeofday to follow the original BSD declarationSzabolcs Nagy-5/+5
2013-05-17add FLT_TRUE_MIN, etc. macros from C11Rich Felker-0/+2
there was some question as to how many decimal places to use, since one decimal place is always sufficient to identify the smallest denormal uniquely. for now, I'm following the example in the C standard which is consistent with the other min/max macros we already had in place.
2013-05-17remove the __STDC_FORMAT_MACROS nonsense from inttypes.hRich Felker-4/+0
somehow I missed this when removing the corresponding __STDC_LIMIT_MACROS and __STDC_CONSTANT_MACROS nonsense from stdint.h. these were all attempts by the C committee to guess what the C++ committee would want, and the guesses turned out to be wrong.
2013-05-15support full range of dev_t major/minor numbers in makedev, etc. macrosRich Felker-3/+10
2013-05-06remove compound literals from math.h to please c++Szabolcs Nagy-5/+10
__FLOAT_BITS and __DOUBLE_BITS macros used union compound literals, now they are changed into static inline functions. A good C compiler generates the same code for both and the later is C++ conformant.
2013-04-22remove __STDC_LIMIT_MACROS and __STDC_CONSTANT_MACROS checks in stdint.hRich Felker-8/+0
C++11, the first C++ with stdint.h, requires the previously protected macros to be exposed unconditionally by stdint.h. apparently these checks were an early attempt by the C committee to guess what the C++ committee would want, and they guessed wrong.
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