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* add stdc-predef.h for library-level predefined macrosRich Felker2016-07-031-0/+10
| | | | | | | | | | | modern compilers (for gcc, versions 4.8 and later) automatically pre-include <stdc-predef.h> to obtain the values of certain predefined macros specified by ISO C but which reflect properties of the library implementation, not just the compiler. provide values indicating that wchar_t is Unicode-encoded and that Annex F (IEEE floating point) is supported unless the compiler indicates otherwise. based on patch by Masanori Ogino.
* make brace placement in public header typedef'd structs consistentRich Felker2016-07-033-16/+8
| | | | | | commit befa5866ee30d09c0c96e88af2eabff5911342ea performed this change for struct definitions that did not also involve typedef, but omitted the latter.
* add EF_SH_ sh specific macros to elf.hSzabolcs Nagy2016-07-031-1/+22
| | | | | last time elf.h was thoroughly updated sh was not yet supported so these processor specific e_flags were missing.
* add NT_ARM_SYSTEM_CALL to elf.hSzabolcs Nagy2016-07-031-0/+1
| | | | new regset in linux v3.18 for ptrace.
* add missing x86 relocs to elf.hSzabolcs Nagy2016-07-031-2/+5
| | | | | see https://sourceware.org/ml/libc-alpha/2016-01/msg00822.html
* add DT_MIPS_RLD_MAP_REL to elf.hSzabolcs Nagy2016-07-031-1/+2
| | | | marks different RLD_MAP for debugging PIE binaries.
* add SHF_COMPRESSED section flag to elf.hSzabolcs Nagy2016-07-031-0/+23
| | | | | following http://www.sco.com/developers/gabi/latest/ch4.sheader.html
* add powerpc tls optimization related definitions to elf.hSzabolcs Nagy2016-07-031-2/+6
| | | | | see https://sourceware.org/ml/libc-alpha/2015-03/msg00580.html
* add nios2 definitions to elf.hSzabolcs Nagy2016-07-031-0/+50
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* update elf.h with mips abi flags supportSzabolcs Nagy2016-07-031-1/+70
| | | | | following https://sourceware.org/ml/libc-alpha/2014-05/msg00332.html
* update elf.h with new aarch64 relocsSzabolcs Nagy2016-07-031-1/+13
| | | | | add ilp32 related relocs and alternative names for a few macros following https://sourceware.org/ml/libc-alpha/2014-11/msg00455.html
* update elf.h with powerpc64 elfv2 abi related macrosSzabolcs Nagy2016-07-031-2/+8
| | | | | | see https://sourceware.org/ml/libc-alpha/2013-11/msg00315.html https://sourceware.org/ml/libc-alpha/2013-11/msg00314.html
* add new powerpc64 relocations to elf.hSzabolcs Nagy2016-07-031-0/+9
| | | | | following the corresponding binutils and glibc changes https://sourceware.org/ml/binutils/2013-10/msg00372.html
* add EM_OPENRISC again to elf.hSzabolcs Nagy2016-07-031-0/+1
| | | | | | | | | it was changed to EM_OR1K in 200d15479c0bc48471ee7b8e538ce33af990f82e as that was meant to be the official name, but glibc and the latest gabi spec still uses the EM_OPENRISC name: http://www.sco.com/developers/gabi/latest/ch4.eheader.html binutils defines both macros so we should do the same for backward compatibility.
* make brace placement in public header struct definitions consistentRich Felker2016-07-0324-92/+46
| | | | | | | | | | | | | | placing the opening brace on the same line as the struct keyword/tag is the style I prefer and seems to be the prevailing practice in more recent additions. these changes were generated by the command: find include/ arch/*/bits -name '*.h' \ -exec sed -i '/^struct [^;{]*$/{N;s/\n/ /;}' {} + and subsequently checked by hand to ensure that the regex did not pick up any false positives.
* fix misplaced indention in sys/procfs.hRich Felker2016-07-031-1/+1
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* pthread: implement try/timed join variantsBobby Bingham2016-06-301-0/+2
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* add RUSAGE_THREAD (Linux extension) definition to sys/resource.hRich Felker2016-06-291-0/+1
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* fix incorrect definition of RUSAGE_CHILDREN in sys/resource.hRich Felker2016-06-291-1/+1
| | | | | | the kernel ABI value for RUSAGE_CHILDREN is -1, not 1. the latter is actually interpreted as RUSAGE_THREAD, to obtain values for just the calling thread and not the whole process.
* avoid padding gaps in struct sockaddr_storageRich Felker2016-06-091-1/+1
| | | | | | | | | | | | | | | | | compilers are free not to copy, or in some cases to clobber, padding bytes in a structure. while it's an aliasing violation, and thus undefined behavior, to copy or manipulate other sockaddr types using sockaddr_storage, it seems likely that traditional code attempts to do so, and the original intent of the sockaddr_storage structure was probably to allow such usage. in the interest of avoiding silent and potentially dangerous breakage, ensure that there are no actual padding bytes in sockaddr_storage by moving and adjusting the size of the __ss_padding member so that it fits exactly. this change also removes a silent assumption that the alignment of long is equal to its size.
* update sys/socket.h to linux v4.6Szabolcs Nagy2016-06-091-1/+19
| | | | | | | | | | | | kernel connection multiplexor macros AF_KCM, PF_KCM, SOL_KCM were added in linux commit ab7ac4eb9832e32a09f4e8042705484d2fb0aad3 MSG_BATCH sendmsg flag for performance optimization was added in linux commit f092276d85b82504e8a07498f4e9e0c51f06745c SOL_* macros are now synced with linux socket.h which is not a uapi header and glibc did not have the macros either, but that has changed http://sourceware.org/ml/libc-alpha/2016-05/msg00322.html
* add new tcp_info fields from linux v4.6Szabolcs Nagy2016-06-091-0/+4
| | | | | | new fields and associated linux commit: tcpi_notsent_bytes, tcpi_min_rtt cd9b266095f422267bddbec88f9098b48ea548fc tcpi_data_segs_in, tcpi_data_segs_out a44d6eacdaf56f74fad699af7f4925a5f5ac0e7f
* add CLONE_NEWCGROUP clone flag, new in linux v4.6Szabolcs Nagy2016-06-091-0/+1
| | | | | flag for new cgroup namespace, added in linux commit 5e2bec7c2248ae27c5b16cd97215ae05c1d39179
* update siginfo struct for linux v4.6Szabolcs Nagy2016-06-091-6/+11
| | | | | x86 protection key faults are reported in the si_pkey field, added in linux commit cd0ea35ff5511cde299a61c21a95889b4a71464e
* add ETH_P_MACSEC netinet/if_ether.h, new in linux v4.6Szabolcs Nagy2016-06-091-0/+1
| | | | | ethertype for macsec added in linux commit dece8d2b78d19df7fe5e4e965f1f0d1a3e188d1b
* add SO_CNX_ADVICE to sys/socket.h, new in linux v4.6Szabolcs Nagy2016-06-091-0/+1
| | | | | | new socket option so application can give advice about routing path quality of connected udp sockets, added in linux commit a87cb3e48ee86d29868d3f59cfb9ce1a8fa63314
* fix undefined pointer arithmetic in CMSG_NXTHDR macroRich Felker2016-05-221-3/+3
| | | | | | | | previously, the only way the stopping condition could be met with correct lengths in the headers invoked undefined behavior, adding sizeof(struct cmsghdr) beyond the end of the cmsg buffer. instead, compute and compare sizes rather than pointers.
* add MADV_FREE madvise command from linux v4.5Szabolcs Nagy2016-03-191-0/+1
| | | | | | allows the os to free the marked pages lazily on memory pressure. expected to increase malloc performance. new in linux commit 854e9ed09dedf0c19ac8640e91bcc74bc3f9e5c9
* add EPOLLEXCLUSIVE epoll flag from linux v4.5Szabolcs Nagy2016-03-191-0/+1
| | | | | | new flag for exclusive wakeup mode when an event source fd is attached to multiple epoll fds but they should not all receive the events. new in linux commit df0108c5da561c66c333bb46bfe3c1fc65905898
* add SO_ATTACH_REUSEPORT_[CE]BPF socket options from linux v4.5Szabolcs Nagy2016-03-191-1/+2
| | | | | | new socket options for setting classic or extended BPF program for sockets in a SO_REUSEPORT group. added in linux commit 538950a1b7527a0a52ccd9337e3fcd304f027f13
* add IPV6_HDRINCL socket option from linux v4.5Szabolcs Nagy2016-03-191-0/+1
| | | | | new in linux commit 715f504b118998c41a2079a17e16bf5a8a114885 same as IP_HDRINCL but for SOL_IPV6 sockets.
* deduplicate bits/mman.hSzabolcs Nagy2016-03-181-0/+59
| | | | | | | | | | | currently five targets use the same mman.h constants and the rest share most constants too, so move them to sys/mman.h before the bits/mman.h include where the differences can be corrected by redefinition of the macros. this fixes two minor bugs: POSIX_MADV_DONTNEED was wrong on most targets (it should be the same as MADV_DONTNEED), and sh defined the x86-only MAP_32BIT mmap flag.
* add sched_getcpuNathan Zadoks2016-03-021-0/+1
| | | | | This is a GNU extension, but a fairly minor one, for a system call that otherwise has no libc wrapper.
* do not define static_assert macro for pre-C11 compilersRich Felker2016-02-121-1/+1
| | | | | | some software simply uses static_assert if the macro is defined, and this breaks if the compiler does not recognize the _Static_assert keyword used to define it.
* add declarations for utmpname/utmpxname to appropriate headersRich Felker2016-02-122-1/+2
| | | | | | | commit 378f8cb5222b63e4f8532c757ce54e4074567e1f added these functions (as stubs) but left them without declarations. this broke some autoconf based software that detected linkability of the symbols but didn't check for a declaration.
* fix siginfo_t for mipsSzabolcs Nagy2016-01-261-0/+4
| | | | | | | | si_errno and si_code are swapped in mips siginfo_t compared to other archs and some si_code values are different. This fix is required for POSIX timers to work. based on patch by Dmitry Ivanov.
* move bits/signal.h include close to the top of signal.hSzabolcs Nagy2016-01-261-6/+12
| | | | | | | | only have code above the bits/signal.h include that is necessary. (some types are used for the ucontext struct and mips has to override a few macro definitions) this way mips bits/signal.h will be able to affect siginfo_t.
* add new PTRACE_SECCOMP_GET_FILTER ptrace commandSzabolcs Nagy2016-01-261-0/+1
| | | | | allows the tracer to dump the bpf seccomp filters of the tracee, new in linux v4.4, commit f8e529ed941ba2bbcbf310b575d968159ce7e895
* add MCL_ONFAULT and MLOCK_ONFAULT mlockall and mlock2 flagsSzabolcs Nagy2016-01-261-0/+1
| | | | | | | | they lock faulted pages into memory (useful when a small part of a large mapped file needs efficient access), new in linux v4.4, commit b0f205c2a3082dd9081f9a94e50658c5fa906ff1 MLOCK_* is not in the POSIX reserved namespace for sys/mman.h
* add new PTRACE_O_SUSPEND_SECCOMP ptrace optionSzabolcs Nagy2016-01-261-1/+2
| | | | | | allows a ptracer process to disable/enable seccomp filters of the traced process, useful for checkpoint/restore, new in v4.3 commit 13c4a90119d28cfcb6b5bdd820c233b86c2b0237
* add new PR_CAP_AMBIENT and related defines to sys/prctl.hSzabolcs Nagy2016-01-261-0/+6
| | | | | ambient capability mask is new in linux v4.3, commit 58319057b7847667f0c9585b9de0e8932b0fdb08
* update netpacket/packet.h to linux v4.3Szabolcs Nagy2016-01-261-0/+17
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* add new IP_BIND_ADDRESS_NO_PORT and IPPROTO_MPLS to netinet/in.hSzabolcs Nagy2016-01-241-0/+2
| | | | | | | | | IP_BIND_ADDRESS_NO_PORT is a SOL_IP socket option to delay src port allocation until connect in case src ip is set with bind(port=0). new in linux v4.2, commit 90c337da1524863838658078ec34241f45d8394d IPPROTO_MPLS protocol number for mpls over ip. new in linux v4.2, commit 730fc4371333636a00fed32c587fc1e85c5367e2
* update netinet/tcp.h for linux v4.2Szabolcs Nagy2016-01-241-0/+7
| | | | | | | | | | | | | TCP_CC_INFO is a new socket option to get congestion control info without netlink (union tcp_cc_info is in linux/inet_diag.h kernel header). linux commit 6e9250f59ef9efb932c84850cd221f22c2a03c4a TCP_SAVE_SYN, TCP_SAVED_SYN socket options are for saving and getting the SYN headers of passive connections in a server application. linux commit cd8ae85299d54155702a56811b2e035e63064d3d Add new tcpi_* fields to struct tcp_info implementing RFC4898 counters. linux commit 2efd055c53c06b7e89c167c98069bab9afce7e59
* add MS_LAZYTIME mount option to sys/mount.hSzabolcs Nagy2016-01-241-1/+2
| | | | | new in linux 4.0 commit 0ae45f63d4ef8d8eeec49c7d8b44a1775fff13e8, used to update atime/mtime/ctime only in memory when possible.
* add AF_MPLS (PF_MPLS) address family to socket.hSzabolcs Nagy2016-01-241-0/+2
| | | | new in linux 4.0 commit 0189197f441602acdca3f97750d392a895b778fd.
* add MSG_FASTOPEN sendmsg/sendto flag to socket.hSzabolcs Nagy2016-01-241-0/+1
| | | | | This was new in linux 3.5 in commit cf60af03ca4e71134206809ea892e49b92a88896, needed for tcp fastopen feature (sending data in TCP SYN packet).
* netinet/tcp: Add TCPOPT, TCPOLEN constantsKylie McClain2016-01-171-0/+13
| | | | | | | | | Programs such as iptables depend on these constants, which can also be found defined in other libcs. Since only TCP_* is reserved as part of tcp.h's namespace, we hide them behind _BSD_SOURCE (and therefore _DEFAULT_SOURCE) to expose them by default, but keep it standard conforming.
* fix mismatched parens in CMPLX def for annex-g-conforming compilersRich Felker2015-11-021-1/+1
| | | | | this conditional path was never tested because there are no compilers that conform to annex g (none with _Imaginary_I).
* remove attribute((const)) from pthread_self and errno location declsRich Felker2015-09-173-9/+0
| | | | | | | | | | | | | | | | | | | | | | this attribute was applied to pthread_self and the functions providing the locations for errno and h_errno as an optimization; however, it is subtly incorrect. as specified, it means the return value will always be the same, which is not true; it varies per-thread. this attribute also implies that the function does not depend on any state, and that calls to it can safely be reordered across any other code. however such reordering is unsafe for these functions: they break when reordered before initialization of the thread pointer. such breakage was actually observed when compiled by libfirm/cparser. to some extent the reordering problem could be solved with strong compiler barriers between the stages of early startup code, but the specified meaning of of attribute((const)) is sufficiently strong that a compiler would theoretically be justified inserting gratuitous calls to attribute((const)) const functions at random locations (e.g. to save the value in static storage for later use). this reverts commit cbf35978a9870fb1f5c73a852c986d4fcca6c2d4.
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