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* signal: Move sys_errlist to a compat symbolAdhemerval Zanella2020-07-071-32/+0
| | | | | | | | | | | | | | | | | | | | The symbol is deprecated by strerror since its usage imposes some issues such as copy relocations. Its internal name is also changed to _sys_errlist_internal to avoid static linking usage. The compat code is also refactored by removing the over enginered errlist-compat.c generation from manual entried and extra comment token in linker script file. It disantangle the code generation from manual and simplify both Linux and Hurd compat code. The definitions from errlist.c are moved to errlist.h and a new test is added to avoid a new errno entry without an associated one in manual. Checked on x86_64-linux-gnu and i686-linux-gnu. I also run a check-abi on all affected platforms. Tested-by: Carlos O'Donell <carlos@redhat.com> Reviewed-by: Carlos O'Donell <carlos@redhat.com>
* signal: Add signum-{generic,arch}.hAdhemerval Zanella2020-07-072-58/+64
| | | | | | | | | | | | | | | | | | | | It refactor how signals are defined by each architecture. Instead of include a generic header (bits/signum-generic.h) and undef non-default values in an arch specific header (bits/signum.h) the new scheme uses a common definition (bits/signum-generic.h) and each architectures add its specific definitions on a new header (bits/signum-arch.h). For Linux it requires copy some system default definitions to alpha, hppa, and sparc. They are historical values and newer ports uses the generic Linux signum-arch.h. For Hurd the BSD signum is removed and moved to a new header (it is used currently only on Hurd). Checked on a build against all affected ABIs. Reviewed-by: Carlos O'Donell <carlos@redhat.com> Tested-by: Carlos O'Donell <carlos@redhat.com>
* Linux: Perform rseq registration at C startup and thread creationMathieu Desnoyers2020-07-061-0/+29
| | | | | | | | | | | | | | | | | | | Register rseq TLS for each thread (including main), and unregister for each thread (excluding main). "rseq" stands for Restartable Sequences. See the rseq(2) man page proposed here: https://lkml.org/lkml/2018/9/19/647 Those are based on glibc master branch commit 3ee1e0ec5c. The rseq system call was merged into Linux 4.18. The TLS_STATIC_SURPLUS define is increased to leave additional room for dlopen'd initial-exec TLS, which keeps elf/tst-auditmany working. The increase (76 bytes) is larger than 32 bytes because it has not been increased in quite a while. The cost in terms of additional TLS storage is quite significant, but it will also obscure some initial-exec-related dlopen failures.
* Add MREMAP_DONTUNMAP from Linux 5.7Joseph Myers2020-06-231-0/+1
| | | | | | | Add the new constant MREMAP_DONTUNMAP from Linux 5.7 to bits/mman-shared.h. Tested with build-many-glibcs.py.
* semaphore: consolidate arch headers into a generic oneVineet Gupta2020-05-061-0/+39
| | | | | | | | | | | | | | | | | | This consolidates the copy-pasted arch specific semaphore header into single version (based on s390) which suffices 32-bit and and 64-bit arch/ABI based on the canonical WORDSIZE. For now I've left out arches which use alternate defines to choose for 32 vs 64-bit builds (aarch64, mips) which in theory can also use the same header. Passes build-many for aarch64-linux-gnu arm-linux-gnueabi arm-linux-gnueabihf riscv64-linux-gnu-rv64imac-lp64 riscv64-linux-gnu-rv64imafdc-lp64 x86_64-linux-gnu microblaze-linux-gnu nios2-linux-gnu Suggested-by: Adhemerval Zanella <adhemerval.zanella@linaro.org> Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* semctl: Remove the sem-pad.h fileAlistair Francis2020-04-293-47/+17
| | | | | | | Remove the sem-pad.h file and instead have architectures override the struct semid_ds via the bits/types/struct_semid_ds.h file. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* bits/sem.h: Split out struct semid_dsAlistair Francis2020-04-292-23/+44
| | | | | | | Split out the struct semid_ds into it's own file. This will allow us to have architectures specify their own version. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* provide y2038 safe socket constants for default/asm-generic ABIVineet Gupta2020-04-191-2/+14
| | | | | | | These will be used by upcoming RV32 and ARC ports and any future ports. Signed-off-by: Alistair Francis <alistair.francis@wdc.com> Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
* Linux: Remove <sys/sysctl.h> and the sysctl functionFlorian Weimer2020-04-151-1/+0
| | | | | | | | | | | | | | | Linux 5.5 remove the system call in commit 61a47c1ad3a4dc6882f01ebdc88138ac62d0df03 ("Linux: Remove <sys/sysctl.h>"). Therefore, the compat function is just a stub that sets ENOSYS. Due to SHLIB_COMPAT, new ports will not add the sysctl function anymore automatically. x32 already lacks the sysctl function, so an empty sysctl.c file is used to suppress it. Otherwise, a new compat symbol would be added. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* Use gcc -finput-charset=ascii for check-installed-headers.Stefan Liebler2020-02-131-1/+1
| | | | | | | | | | | | | | | | | | | | A non-ascii character in the installed headers leads now to: error: failure to convert ascii to UTF-8 Such a finding in s390 specific fenv.h leads to fails in GCC testsuite. See glibc commit 08aea89ef67c5780ae734073494df0a451bce20f. Adding this gcc option also to our tests was proposed by Florian Weimer. This change also found a hit in resource.h where now "microseconds" is used. I've adjusted all the resource.h files. I've used the following command to check for further hits in headers. LC_ALL=C find -name "*.h" -exec grep -PHn "[\x80-\xFF]" {} \; Tested on s390x and x86_64. Reviewed-by: Zack Weinberg <zackw@panix.com>
* Rename RWF_WRITE_LIFE_NOT_SET to RWH_WRITE_LIFE_NOT_SET following Linux 5.5.Joseph Myers2020-02-121-1/+2
| | | | | | | | Linux 5.5 renames RWF_WRITE_LIFE_NOT_SET to RWH_WRITE_LIFE_NOT_SET, with the old name kept as an alias. This patch makes the corresponding change in glibc. Tested for x86_64.
* Update copyright dates with scripts/update-copyrights.Joseph Myers2020-01-0170-70/+70
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* Update SOMAXCONN value from Linux 5.4.Joseph Myers2019-11-291-1/+1
| | | | | | | | | | | | | | | | | Linux 5.4 changes the SOMAXCONN value from 128 to 4096 (this isn't in a uapi header; various constants related to the kernel/userspace interface, including this one, are in the non-uapi linux/socket.h header). This patch increases the value in glibc. As I understand it, it is safe to use a higher value even with older kernels (the kernel will simply adjust the value passed to listen to be no more than the value supported in the kernel), and SOMAXCONN is actually only a default for a sysctl value in the kernel that can be changed at runtime. So I think updating the value in glibc is a reasonable and safe thing to do. Tested for x86_64.
* Define MADV_COLD and MADV_PAGEOUT from Linux 5.4.Joseph Myers2019-11-281-0/+2
| | | | | | | | Linux 5.4 adds constants MADV_COLD and MADV_PAGEOUT (defined with the same values on all architectures). This patch adds them to bits/mman-linux.h. Tested for x86_64.
* Don't use a custom wrapper macro around __has_include (bug 25189).Emilio Cobos Álvarez2019-11-211-5/+7
| | | | | | | | | | | | | | | | | | | | | | | | This causes issues when using clang with -frewrite-includes to e.g., submit the translation unit to a distributed compiler. In my case, I was building Firefox using sccache. See [1] for a reduced test-case since I initially thought this was a clang bug, and [2] for more context. Apparently doing this is invalid C++ per [cpp.cond], which mentions [3]: > The #ifdef and #ifndef directives, and the defined conditional > inclusion operator, shall treat __has_include and __has_cpp_attribute > as if they were the names of defined macros. The identifiers > __has_include and __has_cpp_attribute shall not appear in any context > not mentioned in this subclause. [1]: https://bugs.llvm.org/show_bug.cgi?id=43982 [2]: https://bugs.llvm.org/show_bug.cgi?id=37990 [3]: http://eel.is/c++draft/cpp.cond#7.sentence-2 Change-Id: Id4b8ee19176a9e4624b533087ba870c418f27e60
* Add PTRACE_GET_SYSCALL_INFO from Linux 5.3 to sys/ptrace.h.Joseph Myers2019-10-141-0/+47
| | | | | | | | | | | | | Linux 5.3 adds a PTRACE_GET_SYSCALL_INFO constant, with an associated structure and PTRACE_SYSCALL_INFO_* constants. This patch adds these to sys/ptrace.h in glibc (PTRACE_GET_SYSCALL_INFO in each architecture version, the rest in bits/ptrace-shared.h). As with previous such constants and associated structures, the glibc version of the structure is named struct __ptrace_syscall_info. Tested for x86_64, and with build-many-glibcs.py.
* sysvipc: Set ipc_perm mode as mode_t (BZ#18231)Adhemerval Zanella2019-10-102-16/+41
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch sets the mode field in ipc_perm as mode_t for all architectures, as POSIX specification [1]. The changes required are as follow: 1. It moves the ipc_perm definition out of ipc.h to its own header ipc_perm.h. It also allows consolidate the IPC_* definition on only one header. 2. The generic implementation follow the kernel ipc64_perm size so the syscall can be made directly without temporary buffer copy. However, since glibc defines the MODE field as mode_t, it omits the __PAD1 field (since glibc does not export mode_t as 16-bit for any architecture). It is a two-fold improvement: 2.1. New implementation which follow Linux UAPI will not need to provide an arch-specific ipc-perm.h header neither wrongly use the wrong 16-bit definition from previous default ipc.h (as csky did). 2.1. It allows consolidate ipc_perm definition for architectures that already provide mode_t as 32-bit. 3. All kernel ABIs for the supported architectures already provides the expected padding for mode type extension to 32-bit. However, some architectures the padding has the wrong placement, so it requires the ipc control routines (msgctl, semctl, and shmctl) to adjust the mode field accordingly. Currently they are armeb, microblaze, m68k, s390, and sheb. A new assume is added, __ASSUME_SYSVIPC_BROKEN_MODE_T, which the required ABIs define. 4. For the ABIs that define __ASSUME_SYSVIPC_BROKEN_MODE_T, it also require compat symbols that do not adjust the mode field. Checked on arm-linux-gnueabihf, aarch64-linux-gnu, powerpc64le-linux-gnu, and x86_64-linux-gnu. I also checked the sysvipc tests on hppa-linux-gnu, sh4-linux-gnu, s390x-linux-gnu, and s390-linux-gnu. I also did a sanity test against armeb qemu usermode for the sysvipc tests. [BZ #18231] * sysdeps/unix/sysv/linux/Makefile (sysdep_headers): Add bits/ipc-perm.h. * sysdeps/unix/sysv/linux/aarch64/bits/ipc.h: Remove file. * sysdeps/unix/sysv/linux/alpha/bits/ipc.h: Likewise. * sysdeps/unix/sysv/linux/hppa/bits/ipc.h: Likewise. * sysdeps/unix/sysv/linux/ia64/bits/ipc.h: Likewise. * sysdeps/unix/sysv/linux/mips/bits/ipc.h: Likewise. * sysdeps/unix/sysv/linux/powerpc/bits/ipc.h: Likewise. * sysdeps/unix/sysv/linux/s390/bits/ipc.h: Likewise. * sysdeps/unix/sysv/linux/sparc/bits/ipc.h: Likewise. * sysdeps/unix/sysv/linux/arm/kernel-features.h [__BYTE_ORDER == __BIG_ENDIAN] (__ASSUME_SYSVIPC_BROKEN_MODE_T): Define. * sysdeps/sysv/linux/microblaze/kernel-features.h: Likewise. * sysdeps/unix/sysv/linux/s390/kernel-features.h [!__s390x__] (__ASSUME_SYSVIPC_BROKEN_MODE_T): Define. * sysdeps/unix/sysv/linux/sh/kernel-features.h (__ASSUME_SYSVIPC_BROKEN_MODE_T): Define. * sysdeps/unix/sysv/linux/m68k/kernel-features.h: Likewise. * sysdeps/unix/sysv/linux/bits/ipc-perm.h: New file. * sysdeps/unix/sysv/linux/powerpc/bits/ipc-perm.h: Likewise. * sysdeps/unix/sysv/linux/sparc/bits/ipc-perm.h: Likewise. * sysdeps/unix/sysv/linux/bits/ipc.h (ipc_perm): Move to bits/ipc-perm.h. * sysdeps/unix/sysv/linux/hppa/bits/ipc-perm.h: New file. * sysdeps/unix/sysv/linux/kernel-features.h: Add comment about __ASSUME_SYSVIPC_BROKEN_MODE_T semantic. * sysdeps/unix/sysv/linux/msgctl.c (DEFAULT_VERSION): Define as 2.31 if __ASSUME_SYSVIPC_BROKEN_MODE_T is defined. (msgctl_syscall, __msgctl_mode16): New symbol. (__new_msgctl): Add bits for __ASSUME_SYSVIPC_BROKEN_MODE_T. * sysdeps/unix/sysv/linux/semctl.c: Likewise. * sysdeps/unix/sysv/linux/shmctl.c: Likewise. * sysdeps/unix/sysv/linux/arm/be/libc.abilist (GLIBC_2.31): Add msgctl, semctl, and shmctl. * sysdeps/sysv/linux/microblaze/be/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/m68k/coldfire/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/m68k/m680x0/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/sh/be/libc.abilist: Likewise. * conform/data/sys/ipc.h-data: Only xfail {struct ipc_perm} mode_t mode for Hurd. * sysdeps/unix/sysv/linux/m68k/Versions (libc) [GLIBC_2.31]: Add msgctl, semctl, and shmctl. * sysdeps/unix/sysv/linux/arm/be/Versions: New file. * sysdeps/unix/sysv/linux/microblaze/be/Versions: Likewise. * sysdeps/unix/sysv/linux/sh/be/Versions: Likewise. [1] http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/sys_ipc.h.html
* Prefer https to http for gnu.org and fsf.org URLsPaul Eggert2019-09-0769-69/+69
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Also, change sources.redhat.com to sourceware.org. This patch was automatically generated by running the following shell script, which uses GNU sed, and which avoids modifying files imported from upstream: sed -ri ' s,(http|ftp)(://(.*\.)?(gnu|fsf|sourceware)\.org($|[^.]|\.[^a-z])),https\2,g s,(http|ftp)(://(.*\.)?)sources\.redhat\.com($|[^.]|\.[^a-z]),https\2sourceware.org\4,g ' \ $(find $(git ls-files) -prune -type f \ ! -name '*.po' \ ! -name 'ChangeLog*' \ ! -path COPYING ! -path COPYING.LIB \ ! -path manual/fdl-1.3.texi ! -path manual/lgpl-2.1.texi \ ! -path manual/texinfo.tex ! -path scripts/config.guess \ ! -path scripts/config.sub ! -path scripts/install-sh \ ! -path scripts/mkinstalldirs ! -path scripts/move-if-change \ ! -path INSTALL ! -path locale/programs/charmap-kw.h \ ! -path po/libc.pot ! -path sysdeps/gnu/errlist.c \ ! '(' -name configure \ -execdir test -f configure.ac -o -f configure.in ';' ')' \ ! '(' -name preconfigure \ -execdir test -f preconfigure.ac ';' ')' \ -print) and then by running 'make dist-prepare' to regenerate files built from the altered files, and then executing the following to cleanup: chmod a+x sysdeps/unix/sysv/linux/riscv/configure # Omit irrelevant whitespace and comment-only changes, # perhaps from a slightly-different Autoconf version. git checkout -f \ sysdeps/csky/configure \ sysdeps/hppa/configure \ sysdeps/riscv/configure \ sysdeps/unix/sysv/linux/csky/configure # Omit changes that caused a pre-commit check to fail like this: # remote: *** error: sysdeps/powerpc/powerpc64/ppc-mcount.S: trailing lines git checkout -f \ sysdeps/powerpc/powerpc64/ppc-mcount.S \ sysdeps/unix/sysv/linux/s390/s390-64/syscall.S # Omit change that caused a pre-commit check to fail like this: # remote: *** error: sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S: last line does not end in newline git checkout -f sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S
* Add SYNC_FILE_RANGE_WRITE_AND_WAIT from Linux 5.2 to bits/fcntl-linux.h.Joseph Myers2019-08-071-0/+5
| | | | | | | | | | | This patch adds the SYNC_FILE_RANGE_WRITE_AND_WAIT constant from Linux 5.2 (a new name for a combination of existing bits, not actually a new kernel interface) to bits/fcntl-linux.h. Tested for x86_64. * sysdeps/unix/sysv/linux/bits/fcntl-linux.h [__USE_GNU] (SYNC_FILE_RANGE_WRITE_AND_WAIT): New macro.
* Add CLONE_PIDFD from Linux 5.2 to bits/sched.h.Joseph Myers2019-08-051-0/+2
| | | | | | | | | | This patch adds the CLONE_PIDFD constant from Linux 5.2 to glibc's bits/sched.h. Tested for x86_64. * sysdeps/unix/sysv/linux/bits/sched.h [__USE_GNU] (CLONE_PIDFD): New macro.
* Linux: Move getdents64 to <dirent.h>Florian Weimer2019-07-292-6/+33
| | | | | | This matches the location of the declaration in musl. Reviewed-by: Carlos O'Donell <carlos@redhat.com>
* Linux: Use in-tree copy of SO_ constants for !__USE_MISC [BZ #24532]Florian Weimer2019-07-242-92/+44
| | | | | | | | | | | | | | | | | | | | The kernel changes for a 64-bit time_t on 32-bit architectures resulted in <asm/socket.h> indirectly including <linux/posix_types.h>. The latter is not namespace-clean for the POSIX version of <sys/socket.h>. This issue has persisted across several Linux releases, so this commit creates our own copy of the SO_* definitions for !__USE_MISC mode. The new test socket/tst-socket-consts ensures that the copy is consistent with the kernel definitions (which vary across architectures). The test is tricky to get right because CPPFLAGS includes include/libc-symbols.h, which in turn defines _GNU_SOURCE unconditionally. Tested with build-many-glibcs.py. I verified that a discrepancy in the definitions actually results in a failure of the socket/tst-socket-consts test.
* Linux: Fix __glibc_has_include use for <sys/stat.h> and statxFlorian Weimer2019-06-141-2/+5
| | | | | | | | | | | | | | | The identifier linux is used as a predefined macro, so the actually used path is 1/stat.h or 1/stat64.h. Using the quote-based version triggers a file lookup for /usr/include/bits/linux/stat.h (or whatever directory is used to store bits/statx.h), but since bits/ is pretty much reserved by glibc, this appears to be acceptable. This is related to GCC PR 80005: incorrect macro expansion of the argument of __has_include. Suggested by Zack Weinberg. Reviewed-by: Carlos O'Donell <carlos@redhat.com>
* Add IPV6_ROUTER_ALERT_ISOLATE from Linux 5.1 to bits/in.h.Joseph Myers2019-06-131-0/+1
| | | | | | | | | | This patch adds the new constant IPV6_ROUTER_ALERT_ISOLATE from Linux 5.1 to sysdeps/unix/sysv/linux/bits/in.h. Tested for x86_64. * sysdeps/unix/sysv/linux/bits/in.h (IPV6_ROUTER_ALERT_ISOLATE): New macro.
* <sys/stat.h>: Use Linux UAPI header for statx if available and usefulFlorian Weimer2019-06-121-0/+34
| | | | | This will automatically import new STATX_* constants. It also avoids a conflict between <sys/stat.h> and <linux/stat.h>.
* Linux: Add getdents64 system callFlorian Weimer2019-06-071-0/+6
| | | | | | | | | | | No 32-bit system call wrapper is added because the interface is problematic because it cannot deal with 64-bit inode numbers and 64-bit directory hashes. A future commit will deprecate the undocumented getdirentries and getdirentries64 functions. Reviewed-by: Carlos O'Donell <carlos@redhat.com>
* Add F_SEAL_FUTURE_WRITE from Linux 5.1 to bits/fcntl-linux.h.Joseph Myers2019-05-231-0/+2
| | | | | | | | | | This patch adds the new F_SEAL_FUTURE_WRITE constant from Linux 5.1 to bits/fcntl-linux.h. Tested for x86_64. * sysdeps/unix/sysv/linux/bits/fcntl-linux.h [__USE_GNU] (F_SEAL_FUTURE_WRITE): New macro.
* Linux: Add the tgkill functionFlorian Weimer2019-05-141-0/+31
| | | | | | | | | The tgkill function is sometimes used in crash handlers. <bits/signal_ext.h> follows the same approach as <bits/unistd_ext.h> (which was added for the gettid system call wrapper). Reviewed-by: Carlos O'Donell <carlos@redhat.com>
* Break further lines before not after operators.Joseph Myers2019-02-261-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch continues the process of fixing coding style to break lines before not after operators in accordance with the GNU Coding Standards, fixing such issues in a non-exhaustive selection of sysdeps files that had them. Tested for x86_64, and with build-many-glibcs.py. * sysdeps/arm/sysdep.h (#if condition): Break lines before rather than after operators. * sysdeps/mach/hurd/fork.c (__fork): Likewise. * sysdeps/mach/hurd/getcwd.c (__hurd_canonicalize_directory_name_internal): Likewise. * sysdeps/mach/hurd/htl/pt-mutex-consistent.c (pthread_mutex_consistent): Likewise. * sysdeps/mach/hurd/htl/pt-mutex-init.c (_pthread_mutex_init): Likewise. * sysdeps/mach/hurd/htl/pt-mutex-transfer-np.c (__pthread_mutex_transfer_np): Likewise. * sysdeps/mach/hurd/htl/pt-mutex-unlock.c (__pthread_mutex_unlock): Likewise. * sysdeps/mach/hurd/htl/pt-mutex.h (ROBUST_LOCK): Likewise. (mtx_owned_p): Likewise. * sysdeps/mach/hurd/htl/pt-mutexattr-getrobust.c (pthread_mutexattr_getrobust): Likewise. * sysdeps/mach/hurd/i386/init-first.c (init1): Likewise. * sysdeps/mach/hurd/i386/trampoline.c (_hurd_setup_sighandler): Likewise. * sysdeps/mach/hurd/ioctl.c (__ioctl): Likewise. * sysdeps/mach/hurd/jmp-unwind.c (_longjmp_unwind): Likewise. * sysdeps/mach/hurd/kill.c (__kill): Likewise. * sysdeps/mach/hurd/mig-reply.c (__mig_get_reply_port): Likewise. * sysdeps/mach/hurd/ptrace.c (ptrace): Likewise. * sysdeps/sparc/sparc64/dl-machine.h (elf_machine_rela): Likewise. * sysdeps/unix/sysv/linux/aarch64/sysdep.h (#if condition): Likewise. * sysdeps/unix/sysv/linux/alpha/ioperm.c (process_cpuinfo): Likewise. * sysdeps/unix/sysv/linux/bits/timex.h (STA_RONLY): Likewise. * sysdeps/unix/sysv/linux/csky/sysdep.h (#if condition): Likewise. * sysdeps/unix/sysv/linux/generic/____longjmp_chk.c (____longjmp_chk): Likewise. * sysdeps/unix/sysv/linux/generic/futimesat.c (futimesat): Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/sysdep.h (INTERNAL_SYSCALL): Likewise. * sysdeps/unix/sysv/linux/s390/s390-64/sysdep.h (INTERNAL_SYSCALL): Likewise. * sysdeps/unix/sysv/linux/sparc/sparc64/get_clockfreq.c (__get_clockfreq_via_cpuinfo): Likewise.
* Linux: Add gettid system call wrapper [BZ #6399]Florian Weimer2019-02-081-0/+36
| | | | | | | | | | This commit adds gettid to <unistd.h> on Linux, and not to the kernel-independent GNU API. gettid is now supportable on Linux because too many things assume a 1:1 mapping between libpthread threads and kernel threads. Reviewed-by: Carlos O'Donell <carlos@redhat.com>
* manual: Document lack of conformance of sched_* functions [BZ #14829]Florian Weimer2019-02-021-1/+4
| | | | | | | | On Linux, we define _POSIX_PRIORITY_SCHEDULING, but functions such as sched_setparam and sched_setscheduler apply to individual threads, not processes. Reviewed-by: Carlos O'Donell <carlos@redhat.com>
* termios: Consolidate termios.hAdhemerval Zanella2019-01-032-0/+23
| | | | | | | | | | | | | | | | | This patch consolidates the Linux termios.h by removing the arch-specific one. No semantic change is expected, checked on a build against x86_64-linux-gnu, alpha-linux-gnu, mips64-linux-gnu, and sparc64-linux-gnu. * sysdeps/unix/sysv/linux/Makefile (sysdep_headers): Add bits/termios-misc.h. * sysdeps/unix/sysv/linux/alpha/bits/termios.h: Remove file. * sysdeps/unix/sysv/linux/mips/bits/termios.h: Likewise. * sysdeps/unix/sysv/linux/sparc/bits/termios.h: Likewise. * sysdeps/unix/sysv/linux/powerpc/bits/termios.h: Likewise. * sysdeps/unix/sysv/linux/bits/termios-misc.h: New file. * sysdeps/unix/sysv/linux/bits/termios.h: Include termios-misc.h.
* termios: Remove Linux _IOT_termiosAdhemerval Zanella2019-01-031-3/+0
| | | | | | | | | | | It is used only on hurd. No semantic change is expected, checked on a build against x86_64-linux-gnu, alpha-linux-gnu, mips64-linux-gnu, and sparc64-linux-gnu. * sysdeps/unix/sysv/linux/bits/termios.h (_IOT_termios): Remove. * sysdeps/unix/sysv/linux/alpha/bits/termios.h: Likewise. * sysdeps/unix/sysv/linux/mips/bits/termios.h: Likewise.
* termios: Consolidate tcflow symbolic constantsAdhemerval Zanella2019-01-032-5/+27
| | | | | | | | | | | | | | | | | | | | | This patch consolidates the termios symbolic constants for use with tcflow in its own header. The Linux generic implementation values match the kernel UAPI and each architecture with deviate values have their own implementation (currently only mips). No semantic change is expected, checked on a build against x86_64-linux-gnu, alpha-linux-gnu, mips64-linux-gnu, and sparc64-linux-gnu. * sysdeps/unix/sysv/linux/Makefile (sysdep_headers): Add termios-tcflow.h. * sysdeps/unix/sysv/linux/bits/termios-tcflow.h: New file. * sysdeps/unix/sysv/linux/mips/bits/termios-tcflow.h: Likewise. * sysdeps/unix/sysv/linux/bits/termios.h (TCSANOW, TCSADRAIN, TCSAFLUSH): Move to termios-tcflow.h. * sysdeps/unix/sysv/linux/alpha/bits/termios.h: Likewise. * sysdeps/unix/sysv/linux/mips/bits/termios.h: Likewise. * sysdeps/unix/sysv/linux/powerpc/bits/termios.h: Likewise. * sysdeps/unix/sysv/linux/sparc/bits/termios.h: Likewise.
* termios: Consolidate local mode definitionsAdhemerval Zanella2019-01-032-24/+59
| | | | | | | | | | | | | | | | | | | | | | | | | | This patch consolidates the termios symbolic constants used for local mode with c_lflag member on its own header. The Linux generic implementation values match the kernel UAPI and each architecture with deviate values have their own implementation (in this case alpha, mips, and powerpc). No semantic change is expected, checked on a build against x86_64-linux-gnu, alpha-linux-gnu, mips64-linux-gnu, and sparc64-linux-gnu. * sysdeps/unix/sysv/linux/Makefile (sysdep_headers): Add termios-c_lflag.h. * sysdeps/unix/sysv/linux/bits/termios-c_lflag.h: New file. * sysdeps/unix/sysv/linux/alpha/bits/termios-c_lflag.h: Likewise. * sysdeps/unix/sysv/linux/mips/bits/termios-c_lflag.h: Likewise. * sysdeps/unix/sysv/linux/powerpc/bits/termios-c_lflag.h: Likewise. * sysdeps/unix/sysv/linux/bits/termios.h (ISIG, ISCANON, ECHO, ECHOE, ECHOK, ECHONL, NOFLSH, TOSTOP, IEXTEN): Move to termios-c_lflag.h. [__USE_MISC || (__USE_XOPEN && !__USE_XOPEN2K)] (XCASE): Likewise. [__USE_MISC] (ECHOCTL, ECHOPRT, ECHOKE, FLUSHO, PENDIN, EXTPROC): Likewise. * sysdeps/unix/sysv/linux/alpha/bits/termios.h: Likewise. * sysdeps/unix/sysv/linux/mips/bits/termios.h: Likewise. * sysdeps/unix/sysv/linux/powerpc/bits/termios.h: Likewise. * sysdeps/unix/sysv/linux/sparc/bits/termios.h: Likewise.
* termios: Consolidate control mode definitionsAdhemerval Zanella2019-01-032-11/+35
| | | | | | | | | | | | | | | | | | | | | | | | This patch consolidates the termios symbolic constants used for output mode with c_cflag memver on its own header. The Linux generic implementation values match the kernel UAPI and each architecture with deviate values have their own implementation (in this case alpha and powerpc). No semantic change is expected, checked on a build against x86_64-linux-gnu, alpha-linux-gnu, mips64-linux-gnu, and sparc64-linux-gnu. * sysdeps/unix/sysv/linux/Makefile (sysdep_headers): Add termios-c_cflag.h. * sysdeps/unix/sysv/linux/bits/termios-c_cflag.h: New file. * sysdeps/unix/sysv/linux/alpha/bits/termios-c_cflag.h: Likewise. * sysdeps/unix/sysv/linux/powerpc/bits/termios-c_cflag.h: Likewise. * sysdeps/unix/sysv/linux/bits/termios.h (CSIZE, CS5, CS6, CS7, CS8, CSTOPB, CREAD, PARENB, PARODD, HUPCL, CLOCAL): Move to termios-c_cflag.h. * sysdeps/unix/sysv/linux/alpha/bits/termios.h: Likewise. * sysdeps/unix/sysv/linux/mips/bits/termios.h: Likewise. * sysdeps/unix/sysv/linux/powerpc/bits/termios.h: Likewise. * sysdeps/unix/sysv/linux/sparc/bits/termios.h: Likewise.
* termios: Consolidate Baud Rate Selection definitions (BZ#23783)Adhemerval Zanella2019-01-032-27/+50
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch consolidates the termios symbolic constants used for baud rates selection used along with speed_t on its own header. The Linux generic implementation values match the kernel UAPI and each architecture with deviate values have their own implementation (in this case alpha and powerpc). No semantic change is expected, checked on a build against x86_64-linux-gnu, alpha-linux-gnu, mips64-linux-gnu, and sparc64-linux-gnu. [BZ #23783] * sysdeps/unix/sysv/linux/Makefile (sysdep_headers): Add termios-baud.h. * sysdeps/unix/sysv/linux/bits/termios-baud.h: New file. * sysdeps/unix/sysv/linux/alpha/bits/termios-baud.h: Likewise. * sysdeps/unix/sysv/linux/powerpc/bits/termios-baud.h: Likewise. * sysdeps/unix/sysv/linux/sparc/bits/termios-baud.h: Likewise. * sysdeps/unix/sysv/linux/alpha/bits/termios.h (B57600, B115200, B230400, B460800, B500000, B576000, B921600, B1000000, B1152000, B1500000, B2000000, B2500000, B3000000, B3500000, B4000000, __MAX_BAUD): Move to termios-baud.h. [__USE_MISC] (CBAUD, CBAUDEX): Likewise. * sysdeps/unix/sysv/linux/bits/termios.h: Likewise. * sysdeps/unix/sysv/linux/mips/bits/termios.h: Likewise. * sysdeps/unix/sysv/linux/powerpc/bits/termios.h: Likewise. * sysdeps/unix/sysv/linux/sparc/bits/termios.h: Likewise.
* termios: Consolidate Output Modes definitionsAdhemerval Zanella2019-01-032-39/+62
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch consolidates the termios symbolic constants used for ouput modes with c_oflag member on its own header. The Linux generic implementation values match the kernel UAPI and each architecture with deviate values have their own implementation (in this case alpha, powerpc, and sparc). No semantic change is expected, checked on a build against x86_64-linux-gnu, alpha-linux-gnu, mips64-linux-gnu, and sparc64-linux-gnu. * sysdeps/unix/sysv/linux/Makefile (sysdep_routines): Add termios-c_oflag.h. * sysdeps/unix/sysv/linux/bits/termios-c_oflag.h: New file. * sysdeps/unix/sysv/linux/alpha/bits/termios-c_oflag.h: Likewise. * sysdeps/unix/sysv/linux/powerpc/bits/termios-c_oflag.h: Likewise. * sysdeps/unix/sysv/linux/sparc/bits/termios-c_oflag.h: Likewise. * sysdeps/unix/sysv/linux/bits/termios.h (OPOST, OLCUC, ONLCR, OCRNL, ONOCR, ONLRET, OFILL, OFDEL, VTDLY, VT0, VT1): Move to termios-c_oflag.h. [__USE_MISC || __USE_XOPEN] (NLDLY, NL0, NL1, CRDLY, CR0, CR1, CR2, CR3, TABDLY, TAB0, TAB1, TAB2, TAB3, BSDLY, BS0, BS1, FFDLY, FF0, FFR1): Likewise. [USE_MISC] (XTABS): Likewise. * sysdeps/unix/sysv/linux/alpha/bits/termios.h: Likewise. * sysdeps/unix/sysv/linux/mips/bits/termios.h: Likewise. * sysdeps/unix/sysv/linux/powerpc/bits/termios.h: Likewise. * sysdeps/unix/sysv/linux/sparc/bits/termios.h Likewise.
* termios: Consolidate Input Modes definitions.Adhemerval Zanella2019-01-032-17/+41
| | | | | | | | | | | | | | | | | | | | | | | This patch consolidates the termios symbolic constants used for input modes with c_iflag member on its own header. The Linux generic implementation values match the kernel UAPI and each architecture with deviate values have their own implementation (in this case alpha and powerpc). No semantic change is expected, checked on a build against x86_64-linux-gnu, alpha-linux-gnu, mips64-linux-gnu, and sparc64-linux-gnu. * sysdeps/unix/sysv/linux/Makefile (sysdeps_headers): Add termios-c_iflag.h. * sysdeps/unix/sysv/linux/bits/termios-c_iflag.h: New file. * sysdeps/unix/sysv/linux/alpha/bits/termios-c_iflag.h: Likewise. * sysdeps/unix/sysv/linux/powerpc/bits/termios-c_iflag.h: Likewise. * sysdeps/unix/sysv/linux/bits/termios.h (IGNBRK, BRKINT, IGNPAR, PARMRK, INPCK, ISTRIP, INLCR, IGNCR, ICRNL, IXON, IXOFF, IXANY, IUCLC, IMAXBEL, IUTF8): Move to termios-c_iflag.h. * sysdeps/unix/sysv/linux/alpha/bits/termios.h: Likewise. * sysdeps/unix/sysv/linux/mips/bits/termios.h: Likewise. * sysdeps/unix/sysv/linux/powerpc/bits/termios.h: Likewise. * sysdeps/unix/sysv/linux/sparc/bits/termios.h: Likewise.
* termios: Consolidate termios c_cc symbolic constantsAdhemerval Zanella2019-01-032-19/+41
| | | | | | | | | | | | | | | | | | | | | | | | | | This patch consolidates the termios symbolic constants used as subscript for the array c_cc on its own header. The Linux generic implementation values match the kernel UAPI and each architecture with deviate values have their own implementation (in this case alpha, mips64, sparc64, and powerpc). No semantic change is expected, checked on a build against x86_64-linux-gnu, alpha-linux-gnu, mips64-linux-gnu, and sparc64-linux-gnu. * sysdeps/unix/sysv/linux/Makefile (sysdeps_headers): Add termios-cc.h. * sysdeps/unix/sysv/linux/bits/termios-c_cc.h: Likewise. * sysdeps/unix/sysv/linux/alpha/bits/termios-c_cc.h: New file. * sysdeps/unix/sysv/linux/mips/bits/termios-c_cc.h: Likewise. * sysdeps/unix/sysv/linux/powerpc/bits/termios-c_cc.h: Likewise. * sysdeps/unix/sysv/linux/sparc/bits/termios-c_cc.h: Likewise. * sysdeps/unix/sysv/linux/bits/termios.h (VINTR, VQUIT, VERASE, VKILL, VEOF, VTIME, VMIN, VSWTC, VSTART, VSTOP, VSUSP, VEOL, VREPRINT, VDISCARD, VWERASE, VLNEXT, VEOLF2): Move to termios-cc.h. * sysdeps/unix/sysv/linux/alpha/bits/termios.h: Likewise. * sysdeps/unix/sysv/linux/mips/bits/termios.h: Likewise. * sysdeps/unix/sysv/linux/powerpc/bits/termios.h: Likewise. * sysdeps/unix/sysv/linux/sparc/bits/termios.h: Likewise.
* termios: Consolidate struct termiosAdhemerval Zanella2019-01-032-14/+37
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch consolidates the struct termios definition on its own header and adds arch-defined ones for ABIs that deviate from generic implementation. They are: - alpha which has a slight different layout than generic one (c_cc field is defined prior c_line). - sparc and mips which do not have the c_ispeed/c_ospeed fields. No semantic change is expected, checked on a build against x86_64-linux-gnu, alpha-linux-gnu, mips64-linux-gnu, and sparc64-linux-gnu. * sysdeps/unix/sysv/linux/alpha/bits/termios-struct.h: New file. * sysdeps/unix/sysv/linux/bits/termios-struct.h: Likewise. * sysdeps/unix/sysv/linux/mips/bits/termios-struct.h: Likewise. * sysdeps/unix/sysv/linux/sparc/bits/termios-struct.h: Likewise. * sysdeps/unix/sysv/linux/Makefile (sysdep_headers): Add termios-struct.h. * sysdeps/unix/sysv/linux/bits/termios.h (struct termios): Move to termios-struct.h. * sysdeps/unix/sysv/linux/alpha/bits/termios.h (struct termios): Likewise. * sysdeps/unix/sysv/linux/mips/bits/termios.h (struct termios): Likewise. * sysdeps/unix/sysv/linux/powerpc/bits/termios.h (struct termios): Likewise. * sysdeps/unix/sysv/linux/sparc/bits/termios.h (struct termios): Likewise. * sysdeps/unix/sysv/linux/kernel_termios.h (_HAVE_C_ISPEED, _HAVE_C_OSPEED): Define. * sysdeps/unix/sysv/linux/mips/kernel_termios.h (_HAVE_C_ISPEED, _HAVE_C_OSPEED): Likewise. * sysdeps/unix/sysv/linux/sparc/kernel_termios.h (_HAVE_C_ISPEED, _HAVE_C_OSPEED): Likewise. * sysdeps/unix/sysv/linux/speed.c [_HAVE_STRUCT_TERMIOS_C_OSPEED] (cfsetospeed): Check for define value instead of existence. [_HAVE_STRUCT_TERMIOS_C_ISPEED] (cfsetispeed): Likewise. * sysdeps/unix/sysv/linux/tcgetattr.c [_HAVE_STRUCT_TERMIOS_C_ISPEED && _HAVE_C_ISPEED] (__tcgetattr): Likewise. * sysdeps/unix/sysv/linux/tcsetattr.c [_HAVE_STRUCT_TERMIOS_C_ISPEED && _HAVE_C_ISPEED] (__tcsetattr): Likewise.
* termios: Define TIOCSER_TEMT with __USE_MISC (BZ#17783)Adhemerval Zanella2019-01-031-0/+5
| | | | | | | | | | | | | | | | | | This patch defines TIOCSER_TEMT on all architectures using the __USE_MISC guards similar to BZ#17782 fix. Latest Linux UAPI defines TIOCSER_TEMT with the same value for all architectures, so it is safe to use the value as default for all ABIs. Checked on x86_64linux-gnu and build against sparc64-linux-gnu and powerpc64le-linux-gnu. [BZ #17783] * sysdeps/unix/sysv/linux/bits/termios.h [__USE_MISC] (TIOCSER_TEMT): Define. * sysdeps/unix/sysv/linux/powerpc/bits/termios.h [__USE_MISC] (TIOCSER_TEMT): Likewise. * sysdeps/unix/sysv/linux/sparc/bits/termios.h [__USE_MISC] (TEOCSER_TEMT): Likewise.
* Add IPV6_MULTICAST_ALL from Linux 4.20 to bits/in.h.Joseph Myers2019-01-011-0/+1
| | | | | | | | | | This patch adds the IPV6_MULTICAST_ALL constant from Linux 4.20 to bits/in.h. Tested for x86_64. * sysdeps/unix/sysv/linux/bits/in.h (IPV6_MULTICAST_ALL): New macro.
* Update copyright dates with scripts/update-copyrights.Joseph Myers2019-01-0155-55/+55
| | | | | | | * All files with FSF copyright notices: Update copyright dates using scripts/update-copyrights. * locale/programs/charmap-kw.h: Regenerated. * locale/programs/locfile-kw.h: Likewise.
* Add getcpuH.J. Lu2018-12-071-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add #include <sched.h> int getcpu (unsigned int *cpu, unsigned int *node); to return currently used CPU and NUMA node. Tested on x86-64, x32 and i686 as well as with build-many-glibcs.py. * NEWS: Mention getcpu. * include/sched.h (__getcpu): New libc_hidden_proto. * manual/resource.texi: Document getcpu. * sysdeps/unix/sysv/linux/Makefile (sysdep_routines): Add getcpu. * sysdeps/unix/sysv/linux/Versions (GLIBC_2.29): Add getcpu. * sysdeps/unix/sysv/linux/aarch64/libc.abilist: Add getcpu. * sysdeps/unix/sysv/linux/alpha/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/arm/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/hppa/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/i386/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/ia64/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/m68k/coldfire/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/m68k/m680x0/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/microblaze/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/mips/mips32/fpu/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/mips/mips32/nofpu/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/mips/mips64/n64/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/nios2/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/libc-le.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/riscv/rv64/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/s390/s390-64/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/sh/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc64/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/x86_64/64/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/x86_64/x32/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/bits/sched.h (getcpu): New prototype. * sysdeps/unix/sysv/linux/getcpu.c: New file. * sysdeps/unix/sysv/linux/tst-skeleton-affinity.c (test_size): Also check getcpu.
* Y2038: provide size of default time_t for target architectureAlbert ARIBAUD (3ADEV)2018-10-243-6/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | To determine whether the default time_t interfaces are 32-bit and so need conversions, or are 64-bit and so are compatible with the internal 64-bit type without conversions, a macro giving the size of the default time_t is also required. This macro is called __TIMESIZE. This macro can then be used instead of __WORDSIZE in msq-pad.h and shm-pad.h files, which in turn allows removing their x86 variants, and in sem-pad.h files but keeping the x86 variant. This patch was tested by running 'make check' on branch master then applying this patch and running 'make check' again, and checking that both 'make check' yield identical results. This was done on x86_64-linux-gnu and i686-linux-gnu. * bits/timesize.h: New file. * stdlib/Makefile (headers): Add bits/timesize.h. * sysdeps/unix/sysv/linux/bits/msq-pad.h (__MSQ_PAD_AFTER_TIME): Use __TIMESIZE instead of __WORDSIZE. * sysdeps/unix/sysv/linux/bits/sem-pad.h (__SEM_PAD_AFTER_TIME): Likewise. * sysdeps/unix/sysv/linux/bits/shm-pad.h (__SHM_PAD_AFTER_TIME): Likewise. * sysdeps/unix/sysv/linux/hppa/bits/msq-pad.h (__MSQ_PAD_BEFORE_TIME): Likewise. * sysdeps/unix/sysv/linux/hppa/bits/sem-pad.h (__SEM_PAD_BEFORE_TIME): Likewise. * sysdeps/unix/sysv/linux/hppa/bits/shm-pad.h (__SHM_PAD_BEFORE_TIME, __SHM_PAD_BETWEEN_TIME_AND_SEGSZ): Likewise. * sysdeps/unix/sysv/linux/mips/bits/msq-pad.h (__MSQ_PAD_AFTER_TIME, __MSQ_PAD_BEFORE_TIME): Likewise. * sysdeps/unix/sysv/linux/powerpc/bits/msq-pad.h (__MSQ_PAD_BEFORE_TIME): Likewise. * sysdeps/unix/sysv/linux/powerpc/bits/sem-pad.h (__SEM_PAD_BEFORE_TIME): Likewise. * sysdeps/unix/sysv/linux/powerpc/bits/shm-pad.h (__SHM_PAD_BEFORE_TIME, __SHM_PAD_BETWEEN_TIME_AND_SEGSZ): Likewise. * sysdeps/unix/sysv/linux/sparc/bits/msq-pad.h (__MSQ_PAD_BEFORE_TIME): Likewise. * sysdeps/unix/sysv/linux/sparc/bits/sem-pad.h (__SEM_PAD_BEFORE_TIME): Likewise. * sysdeps/unix/sysv/linux/sparc/bits/shm-pad.h (__SHM_PAD_BEFORE_TIME): Likewise. * sysdeps/unix/sysv/linux/x86/bits/msq-pad.h: Delete file. * sysdeps/unix/sysv/linux/x86/bits/shm-pad.h: Likewise. * sysdeps/unix/sysv/linux/x86/bits/timesize.h: New file.
* signal: Use correct type for si_band in siginfo_t [BZ #23562]Ilya Yu. Malakhov2018-10-191-1/+1
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* Use single bits/shm.h for all architectures.Joseph Myers2018-10-172-26/+74
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | After my patch to move SHMLBA to its own header, the bits/shm.h headers for architectures using the Linux kernel still vary in a few ways: the use of __syscall_ulong_t; whether padding for 32-bit systems is present before or after time fields, or missing altogether (mips, x32); whether shm_segsz is before or after the time fields; whether, if after time fields, there is extra padding before shm_segsz. This patch arranges for a single header to be used. __syscall_ulong_t is safe to use everywhere, while bits/shm-pad.h is added with new macros __SHM_PAD_AFTER_TIME, __SHM_PAD_BEFORE_TIME, __SHM_SEGSZ_AFTER_TIME and __SHM_PAD_BETWEEN_TIME_AND_SEGSZ to describe the differences. Tested for x86_64 and x86, and with build-many-glibcs.py. * sysdeps/unix/sysv/linux/Makefile (sysdep_headers): Add bits/shm-pad.h. * sysdeps/unix/sysv/linux/bits/shm.h: Include <bits/shm-pad.h>. (shmatt_t): Define as __syscall_ulong_t. (__SHM_PAD_TIME): New macro, depending on [__SHM_PAD_BEFORE_TIME] and [__SHM_PAD_AFTER_TIME]. (struct shmid_ds): Define time fields using __SHM_PAD_TIME. Define shm_segsz and associated padding based on [__SHM_SEGSZ_AFTER_TIME] and [__SHM_PAD_BETWEEN_TIME_AND_SEGSZ]. Use __syscall_ulong_t instead of unsigned long int. [__USE_MISC] (struct shminfo): Use __syscall_ulong_t instead of unsigned long int. [__USE_MISC] (struct shm_info): Likewise. * sysdeps/unix/sysv/linux/bits/shm-pad.h: New file. * sysdeps/unix/sysv/linux/hppa/bits/shm-pad.h: Likewise. * sysdeps/unix/sysv/linux/mips/bits/shm-pad.h: Likewise. * sysdeps/unix/sysv/linux/powerpc/bits/shm-pad.h: Likewise. * sysdeps/unix/sysv/linux/sparc/bits/shm-pad.h: Likewise. * sysdeps/unix/sysv/linux/x86/bits/shm-pad.h: Likewise. * sysdeps/unix/sysv/linux/hppa/bits/shm.h: Remove. * sysdeps/unix/sysv/linux/mips/bits/shm.h: Likewise. * sysdeps/unix/sysv/linux/powerpc/bits/shm.h: Likewise. * sysdeps/unix/sysv/linux/sparc/bits/shm.h: Likewise. * sysdeps/unix/sysv/linux/x86/bits/shm.h: Likewise.
* Move SHMLBA to its own header.Joseph Myers2018-10-172-5/+30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | One difference between bits/shm.h headers for architectures using the Linux kernel is the definition of SHMLBA. This was noted in <https://sourceware.org/ml/libc-alpha/2018-09/msg00175.html> as a reason why even a new architecture (C-SKY) might need its own bits/shm.h; thus, splitting it out of bits/shm.h can allow less duplication of headers for new architectures. This patch moves that definition to its own header, bits/shmlba.h, to allow more sharing of headers between architectures. That move allows the arm, ia64 and sh variants of bits/shm.h to be removed, as they had no other significant differences from the generic bits/shm.h; powerpc and x86 have their own bits/shm.h but do not need to get their own bits/shmlba.h because they use the same SHMLBA as the generic header. Other architectures with their own bits/shm.h get their own bits/shmlba.h without being able to remove their own bits/shm.h until the generic one has been adapted to be able to handle more architectures (where, in addition to the differences seen for bits/msq.h and bits/sem.h, the position of shm_segsz in struct shmid_ds also depends on the architecture). Tested for x86_64 and x86, and with build-many-glibcs.py. * sysdeps/unix/sysv/linux/Makefile (sysdep_headers): Add bits/shmlba.h. * sysdeps/unix/sysv/linux/bits/shm.h: Include <bits/shmlba.h>. (SHMLBA): Remove macro. (__getpagesize): Remove function declaration. * sysdeps/unix/sysv/linux/hppa/bits/shm.h: Include <bits/shmlba.h>. (SHMLBA): Remove macro. * sysdeps/unix/sysv/linux/mips/bits/shm.h: Include <bits/shmlba.h>. (SHMLBA): Remove macro. * sysdeps/unix/sysv/linux/powerpc/bits/shm.h: Include <bits/shmlba.h>. (SHMLBA): Remove macro. (__getpagesize): Remove function declaration. * sysdeps/unix/sysv/linux/sparc/bits/shm.h: Include <bits/shmlba.h>. (SHMLBA): Remove macro. (__getshmlba): Remove function declaration. * sysdeps/unix/sysv/linux/x86/bits/shm.h: Include <bits/shmlba.h>. (SHMLBA): Remove macro. (__getpagesize): Remove function declaration. * sysdeps/unix/sysv/linux/arm/bits/shm.h: Remove file. * sysdeps/unix/sysv/linux/ia64/bits/shm.h: Likewise. * sysdeps/unix/sysv/linux/sh/bits/shm.h: Likewise. * sysdeps/unix/sysv/linux/bits/shmlba.h: New file. * sysdeps/unix/sysv/linux/arm/bits/shmlba.h: Likewise. * sysdeps/unix/sysv/linux/hppa/bits/shmlba.h: Likewise. * sysdeps/unix/sysv/linux/ia64/bits/shmlba.h: Likewise. * sysdeps/unix/sysv/linux/mips/bits/shmlba.h: Likewise. * sysdeps/unix/sysv/linux/sh/bits/shmlba.h: Likewise. * sysdeps/unix/sysv/linux/sparc/bits/shmlba.h: Likewise.
* Use single bits/sem.h for all architectures.Joseph Myers2018-10-152-12/+50
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The bits/sem.h headers for architectures using the Linux kernel vary in a few ways: * x32 uses __syscall_ulong_t instead of unsigned long int. * The x86 header uses padding after time fields unconditionally (including for both x86_64 ABIs), not just for 32-bit time (unlike in msqid_ds where there is only padding for 32-bit time). Because this padding is present for x32, and is __syscall_ulong_t there, it does have to be __syscall_ulong_t, not unsigned long int. * The MIPS header never uses padding around time fields, even when 32-bit (unlike in msqid_ds where it has endian-dependent padding for 32-bit time). * Some older 32-bit big-endian architectures have padding before rather than after time fields, although the preferred generic approach is padding after the time fields independent of endianness. (There are also insubstantial differences such as use of unsigned int for padding instead of unsigned long int, which makes no difference to layout since the padding fields using unsigned int are only present on 32-bit architectures.) For the first, __syscall_ulong_t can be used in the generic version as it's the same as unsigned long int everywhere except x32. For the other differences, this patch adds macros __SEM_PAD_BEFORE_TIME and __SEM_PAD_AFTER_TIME in a new bits/sem-pad.h header, so that header is the only one needing to be provided on architectures with differences in this area, and everything else can go in a single common bits/sem.h header. Tested for x86_64 and x86, and with build-many-glibcs.py. * sysdeps/unix/sysv/linux/Makefile (sysdep_headers): Add bits/sem-pad.h. * sysdeps/unix/sysv/linux/bits/sem.h: Include <bits/sem-pad.h> instead of <bits/wordsize.h>. (__SEM_PAD_TIME): New macro, depending on [__SEM_PAD_BEFORE_TIME] and [__SEM_PAD_AFTER_TIME]. (struct semid_ds): Define time fields using __SEM_PAD_TIME. Use __syscall_ulong_t instead of unsigned long int. * sysdeps/unix/sysv/linux/bits/sem-pad.h: New file. * sysdeps/unix/sysv/linux/hppa/bits/sem-pad.h: Likewise. * sysdeps/unix/sysv/linux/mips/bits/sem-pad.h: Likewise. * sysdeps/unix/sysv/linux/powerpc/bits/sem-pad.h: Likewise. * sysdeps/unix/sysv/linux/sparc/bits/sem-pad.h: Likewise. * sysdeps/unix/sysv/linux/x86/bits/sem-pad.h: Likewise. * sysdeps/unix/sysv/linux/hppa/bits/sem.h: Remove. * sysdeps/unix/sysv/linux/mips/bits/sem.h: Likewise. * sysdeps/unix/sysv/linux/powerpc/bits/sem.h: Likewise. * sysdeps/unix/sysv/linux/sparc/bits/sem.h: Likewise. * sysdeps/unix/sysv/linux/x86/bits/sem.h: Likewise.
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