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* add new socket options SO_INCOMING_CPU, SO_ATTACH_BPF, SO_DETACH_BPFSzabolcs Nagy2015-02-091-0/+4
| | | | | | | | | | | | | these socket options are new in linux v3.19, introduced in commit 2c8c56e15df3d4c2af3d656e44feb18789f75837 and commit 89aa075832b0da4402acebd698d0411dcc82d03e with SO_INCOMING_CPU the cpu can be queried on which a socket is managed inside the kernel and optimize polling of large number of sockets accordingly. SO_ATTACH_BPF lets eBPF programs (created by the bpf syscall) to be attached to sockets.
* move MREMAP_MAYMOVE and MREMAP_FIXED out of bitsTrutz Behn2015-01-301-0/+2
| | | | | | the definitions are generic for all kernel archs. exposure of these macros now only occurs on the same feature test as for the function accepting them, which is believed to be more correct.
* add new prctl command PR_SET_MM_MAP to sys/prctl.hSzabolcs Nagy2014-12-231-0/+21
| | | | | | | | | | | | | | | | | PR_SET_MM_MAP was introduced as a subcommand for PR_SET_MM in linux v3.18 commit f606b77f1a9e362451aca8f81d8f36a3a112139e the associated struct type is replicated in sys/prctl.h using libc types. example usage: struct prctl_mm_map *p; ... prctl(PR_SET_MM, PR_SET_MM_MAP, p, sizeof *p); the kernel side supported struct size may be queried with the PR_SET_MM_MAP_SIZE subcommand.
* fix macros for LFS *64_t types in sys/stat.h, sys/types.h, glob.hSzabolcs Nagy2014-09-052-2/+2
| | | | | | there is no blksize64_t (blksize_t is always long) but there are fsblkcnt64_t and fsfilcnt64_t types in sys/stat.h and sys/types.h. and glob.h missed glob64_t.
* add new PR_SET_THP_DISABLE and PR_GET_THP_DISABLE prctl flagsSzabolcs Nagy2014-07-201-0/+3
| | | | | they can be used to set or query if transparent huge pages are disabled. introduced in linux 3.15 commit a0715cc22601e8830ace98366c0c2bd8da52af52
* implement sendmmsg and recvmmsgRich Felker2014-06-191-0/+11
| | | | | | | these are not pure syscall wrappers because they have to work around kernel API bugs on 64-bit archs. the workarounds could probably be made somewhat more efficient, but at the cost of more complexity. this may be revisited later.
* fix POSIX namespace pollution in sys/types.hSzabolcs Nagy2014-05-301-10/+6
| | | | int8_t, u_int8_t, etc types are moved under _BSD_SOURCE
* add SO_BPF_EXTENSIONS socket optionSzabolcs Nagy2014-05-301-0/+1
| | | | | this was introduced to query BPF extension support with getsockopt in linux 3.14, commit ea02f9411d9faa3553ed09ce0ec9f00ceae9885e
* fix RLIMIT_ constants for mipsSzabolcs Nagy2014-04-151-2/+5
| | | | | | | The mips arch is special in that it uses different RLIMIT_ numbers than other archs, so allow bits/resource.h to override the default RLIMIT_ numbers (empty on all archs except mips). Reported by orc.
* add getauxval functionRich Felker2014-04-071-0/+16
| | | | | | | in a sense this implementation is incomplete since it doesn't provide the HWCAP_* macros for use with AT_HWCAP, which is perhaps the most important intended usage case for getauxval. they will be added at a later time.
* move struct semid_ds to from shared sys/sem.h to bitsRich Felker2014-03-111-16/+1
| | | | | | | | | | | | the definition was found to be incorrect at least for powerpc, and fixing this cleanly requires making the definition arch-specific. this will allow cleaning up the definition for other archs to make it more specific, and reversing some of the ugliness (time_t hacks) introduced with the x32 port. this first commit simply copies the existing definition to each arch without any changes. this is intentional, to make it easier to review changes made on a per-arch basis.
* in sys/procfs.h, avoid using __WORDSIZE macroRich Felker2014-03-081-1/+1
| | | | | | | this was problematic because several archs don't define __WORDSIZE. we could add it, but I would rather phase this macro out in the long term. in our version of the headers, UINTPTR_MAX is available here, so just use it instead.
* sys/socket.h: add the SO_MAX_PACING_RATE SOL_SOCKET optionSzabolcs Nagy2014-02-251-0/+1
| | | | introduced in linux v3.13, 62748f32d501f5d3712a7c372bbb92abc7c62bc7
* sys/shm.h: move arch specific structs to bits/rofl0r2014-02-231-16/+7
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* sys/sem.h: cheat and make all longs use time_t insteadrofl0r2014-02-221-8/+8
| | | | | most of the members should be time_t anyway, and time_t has the correct semantics for "syscall_long", so it works on all archs, even x32.
* fix signed and unsigned comparision in macros in public headersSzabolcs Nagy2014-02-111-1/+1
| | | | | | gcc -Wsign-compare warns about expanded macros that were defined in standard headers (before gcc 4.8) which can make builds fail that use -Werror. changed macros: WIFSIGNALED, __CPU_op_S
* add nonstandard timespec/timeval conversion macros in sys/time.hRich Felker2014-02-051-0/+11
| | | | | | | | these are poorly designed (illogical argument order) and even poorly implemented (brace issues) on glibc, but unfortunately some software is using them. we could consider removing them again in the future at some point if they're documented as deprecated, but for now the simplest thing to do is just to provide them under _GNU_SOURCE.
* fix namespace violation in sys/shm.hRich Felker2014-01-081-6/+8
| | | | | | | | in fixing this, I've changed the logic from ugly #if/#else blocks inside the struct shm_info definition to a fixed struct definition and optional macros to rename the elements. this will be helpful if we need to move shm_info to a bits header in the future, as it will keep the feature test logic out of bits.
* fix remaining known namespace violations for netinet/in.hRich Felker2014-01-081-0/+4
| | | | | | | | | | | | | | | | | | | | the imr_, imsf_, ip6_, ip6m_, ipi_, ipi6_, SCM_, and SOL_ prefixes are not in the reserved namespace for this header. thus the constants and structures using them need to be protected under appropriate feature test macros. this also affects some headers which are permitted to include netinet/in.h, particularly netdb.h and arpa/inet.h. the SOL_ macros are moved to sys/socket.h where they are in the reserved namespace (SO*). they are still accessible via netinet/in.h since it includes sys/socket.h implicitly (which is permitted). the SCM_SRCRT macro is simply removed, since the definition used for it, IPV6_RXSRCRT is not defined anywhere. it could be re-added, this time in sys/socket.h, if the appropriate value can be determined; however, given that the erroneous definition was not caught, it is unlikely that any software actually attempts to use SCM_SRCRT.
* fix signedness of pgoff argument to remap_file_pagesRich Felker2014-01-071-1/+1
| | | | | both the kernel and glibc agree that this argument is unsigned; the incorrect type ssize_t came from erroneous man pages.
* remove sys/sysctl.hRich Felker2014-01-071-17/+0
| | | | | | | this functionality has essentially always been deprecated in linux, and was never supported by musl. the presence of the header was reported to cause some software to attempt to use the nonexistant function, so removing the header is the cleanest solution.
* fix incorrect type for wd argument of inotify_rm_watchRich Felker2014-01-071-1/+1
| | | | | | this was wrong since the original commit adding inotify, and I don't see any explanation for it. not even the man pages have it wrong. it was most likely a copy-and-paste error.
* add fanotify syscall wrapper and headerrofl0r2014-01-021-0/+73
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* fix struct signalfd_siginfoTimo Teräs2013-12-291-2/+3
| | | | | | | ssi_ptr is really 64-bit in kernel, so fix that. assuming sizeof(void*) for it also caused incorrect padding for 32-bits, as the following 64-bits are aligned to 64-bits (and the padding was not taken into account), so fix the padding as well. add addr_lsb field while there.
* add sys/quota.h and quotactl syscall wrapperRich Felker2013-12-201-0/+104
| | | | based on patch by Timo Teräs.
* move struct ucred under _GNU_SOURCE in sys/socket.h for clean posix namespaceSzabolcs Nagy2013-12-041-0/+2
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* fix SHUT_WR typo in sys/socket.h and duplicate definitions of SHUT_*Szabolcs Nagy2013-12-041-5/+1
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* use 0 instead of NULL in headers where NULL is not definedSzabolcs Nagy2013-11-241-1/+1
| | | | some macros in sys/mtio.h and syslog.h used NULL without defining it
* timeradd/timersub: cast result to void to get rid of warningsrofl0r2013-11-231-2/+2
| | | | | | | previously: timersub(&now, t, &diff); warning: value computed is not used [-Wunused-value]
* adjust sys/wait.h not to produde errors in strict ISO C feature profileRich Felker2013-11-091-3/+7
| | | | | | | | | | | | siginfo_t is not available from signal.h when the strict ISO C feature profile (e.g. passing -std=c99 to gcc without defining any other feature test macros) is used, but the type is needed to declare waitid. using sys/wait.h (or any POSIX headers) in strict ISO C mode is an application bug, but in the interest of compatibility, it's best to avoid producing gratuitous errors. the simplest fix I could find is suppressing the declaration of waitid (and also signal.h inclusion, since it's not needed for anything else) in this case, while still exposing everything else in sys/wait.h
* add legacy ftime function and sys/timeb.hRich Felker2013-10-251-0/+22
| | | | | | despite being marked legacy, this was specified by SUSv3 as part of the XSI option; only the most recent version of the standard dropped it. reportedly there's actual code using it.
* fix typo in socket.h (wrong macro name)Szabolcs Nagy2013-10-181-1/+1
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* sys/resource.h: add PRIO_MIN and PRIO_MAX for getpriority and setprioritySzabolcs Nagy2013-09-161-0/+3
| | | | | | | These constants are not specified by POSIX, but they are in the reserved namespace, glibc and bsd systems seem to provide them as well. (Note that POSIX specifies -NZERO and NZERO-1 to be the limits, but PRIO_MAX equals NZERO)
* sys/socket.h: add new SO_BUSY_POLL socket optionSzabolcs Nagy2013-09-151-0/+1
| | | | low latency busy poll sockets are new in linux v3.11
* ptrace.h: add new ptrace requests to get/set sigmaskSzabolcs Nagy2013-09-151-0/+2
| | | | | PTRACE_GETSIGMASK and PTRACE_SETSIGMASK were added in linux v3.11 and used by checkpoint/restore tools
* add SUN_LEN macro to sys/un.h under appropriate feature testsRich Felker2013-08-211-0/+19
| | | | | this is ugly and useless, but it seems to be the least-ugly way to provide it...
* add missing MSG_EXCEPT in sys/msg.hRich Felker2013-08-141-0/+1
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* fix definitions of WIFSTOPPED and WIFSIGNALED to support up to signal 127Rich Felker2013-08-101-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | mips has signal numbers up to 127 (formerly, up to 128, but the last one never worked right and caused kernel panic when used), so 127 in the "signal number" field of the wait status is insufficient for determining that the process was stopped. in addition, a nonzero value in the upper bits must be present, indicating the signal number which caused the process to be stopped. details on this issue can be seen in the email with message id CAAG0J9-d4BfEhbQovFqUAJ3QoOuXScrpsY1y95PrEPxA5DWedQ@mail.gmail.com on the linux-mips mailing list, archived at: http://www.linux-mips.org/archives/linux-mips/2013-06/msg00552.html and in the associated thread about fixing the mips kernel bug. commit 4a96b948687166da26a6c327e6c6733ad2336c5c fixed the corresponding issue in uClibc, but introduced a multiple-evaluation issue for the WIFSTOPPED macro. for the most part, none of these issues affected pure musl systems, since musl has up until now (incorrectly) defined SIGRTMAX as 64 on all archs, even mips. however, interpreting status of non-musl programs on mips may have caused problems. with this change, the full range of signal numbers can be made available on mips.
* sys/personality.h: add missing C++ compatrofl0r2013-08-081-0/+7
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* sys/personality.h: add missing macrosrofl0r2013-08-081-0/+33
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* add macros for new(ish) prctl commandsRich Felker2013-07-301-0/+37
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* fix some prctl macros that were incorrectly copied into this fileRich Felker2013-07-301-3/+3
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* add wrapper headers, with warnings, for various incorrect names under sysRich Felker2013-07-276-0/+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.
* add protocol families PF_IB and PF_VSOCK to socket.hSzabolcs Nagy2013-07-251-1/+5
| | | | | | | | linux commit 8d36eb01da5d371feffa280e501377b5c450f5a5 (2013-05-29) added PF_IB for InfiniBand linux commit d021c344051af91f42c5ba9fdedc176740cbd238 (2013-02-06) added PF_VSOCK for VMware sockets
* add PTRACE_PEEKSIGINFO to ptrace.hSzabolcs Nagy2013-07-241-0/+11
| | | | | added in linux-v3.10 commit 84c751bd4aebbaae995fe32279d3dba48327bad4 using stdint.h types for the new ptrace_peeksiginfo_args struct
* add SO_SELECT_ERR_QUEUE to socket.hSzabolcs Nagy2013-07-241-0/+1
| | | | introduced in linux-v3.10 commit 7d4c04fc170087119727119074e72445f2bb192b
* move register_t and u_int64_t (back) to alltypesRich Felker2013-07-221-2/+5
| | | | | | | | 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.
* refactor headers, especially alltypes.h, and improve C++ ABI compatRich Felker2013-07-224-16/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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
* add UIO_MAXIOV macro in sys/uio.hRich Felker2013-07-191-0/+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.
* add NFDBITS in sys/select.h with appropriate feature testsRich Felker2013-07-061-0/+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.
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