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2021-07-12Reduce <limits.h> pollution due to dynamic PTHREAD_STACK_MINFlorian Weimer2-8/+33
<limits.h> used to be a header file with no declarations. GCC's libgomp includes it in a #pragma GCC visibility hidden block. Including <unistd.h> from <limits.h> (indirectly) declares everything in <unistd.h> with hidden visibility, resulting in linker failures. This commit avoids C declarations in assembler mode and only declares __sysconf in <limits.h> (and not the entire contents of <unistd.h>). The __sysconf symbol is already part of the ABI. PTHREAD_STACK_MIN is no longer defined for __USE_DYNAMIC_STACK_SIZE && __ASSEMBLER__ because there is no possible definition. Additionally, PTHREAD_STACK_MIN is now defined by <pthread.h> for __USE_MISC because this is what developers expect based on the macro name. It also helps to avoid libgomp linker failures in GCC because libgomp includes <pthread.h> before its visibility hacks. Reviewed-by: Carlos O'Donell <carlos@redhat.com>
2021-07-09Define PTHREAD_STACK_MIN to sysconf(_SC_THREAD_STACK_MIN)H.J. Lu3-2/+28
The constant PTHREAD_STACK_MIN may be too small for some processors. Rename _SC_SIGSTKSZ_SOURCE to _DYNAMIC_STACK_SIZE_SOURCE. When _DYNAMIC_STACK_SIZE_SOURCE or _GNU_SOURCE are defined, define PTHREAD_STACK_MIN to sysconf(_SC_THREAD_STACK_MIN) which is changed to MIN (PTHREAD_STACK_MIN, sysconf(_SC_MINSIGSTKSZ)). Consolidate <bits/local_lim.h> with <bits/pthread_stack_min.h> to provide a constant target specific PTHREAD_STACK_MIN value. Reviewed-by: Carlos O'Donell <carlos@redhat.com>
2021-07-08linux: Add close_rangeAdhemerval Zanella1-0/+23
It was added on Linux 5.9 (278a5fbaed89) with CLOSE_RANGE_CLOEXEC added on 5.11 (582f1fb6b721f). Although FreeBSD has added the same syscall, this only adds the symbol on Linux ports. This syscall is required to provided a fail-safe way to implement the closefrom symbol (BZ #10353). Checked on x86_64-linux-gnu and i686-linux-gnu on kernel 5.11 and 4.15.
2021-06-15y2038: Add support for 64-bit time on legacy ABIsAdhemerval Zanella4-0/+13
A new build flag, _TIME_BITS, enables the usage of the newer 64-bit time symbols for legacy ABI (where 32-bit time_t is default). The 64 bit time support is only enabled if LFS (_FILE_OFFSET_BITS=64) is also used. Different than LFS support, the y2038 symbols are added only for the required ABIs (armhf, csky, hppa, i386, m68k, microblaze, mips32, mips64-n32, nios2, powerpc32, sparc32, s390-32, and sh). The ABIs with 64-bit time support are unchanged, both for symbol and types redirection. On Linux the full 64-bit time support requires a minimum of kernel version v5.1. Otherwise, the 32-bit fallbacks are used and might results in error with overflow return code (EOVERFLOW). The i686-gnu does not yet support 64-bit time. This patch exports following rediretions to support 64-bit time: * libc: adjtime adjtimex clock_adjtime clock_getres clock_gettime clock_nanosleep clock_settime cnd_timedwait ctime ctime_r difftime fstat fstatat futimens futimes futimesat getitimer getrusage gettimeofday gmtime gmtime_r localtime localtime_r lstat_time lutimes mktime msgctl mtx_timedlock nanosleep nanosleep ntp_gettime ntp_gettimex ppoll pselec pselect pthread_clockjoin_np pthread_cond_clockwait pthread_cond_timedwait pthread_mutex_clocklock pthread_mutex_timedlock pthread_rwlock_clockrdlock pthread_rwlock_clockwrlock pthread_rwlock_timedrdlock pthread_rwlock_timedwrlock pthread_timedjoin_np recvmmsg sched_rr_get_interval select sem_clockwait semctl semtimedop sem_timedwait setitimer settimeofday shmctl sigtimedwait stat thrd_sleep time timegm timerfd_gettime timerfd_settime timespec_get utime utimensat utimes utimes wait3 wait4 * librt: aio_suspend mq_timedreceive mq_timedsend timer_gettime timer_settime * libanl: gai_suspend Reviewed-by: Lukasz Majewski <lukma@denx.de> Reviewed-by: Carlos O'Donell <carlos@redhat.com> Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-06-15y2038: Add __USE_TIME_BITS64 support for socket-constants.hAdhemerval Zanella1-8/+39
It is only used for !__USE_MISC, the default way uses the kernel headers. The patch also adds the SO_TIMESTAMP, SO_TIMESTAMPNS, and SO_TIMESTAMPING which uses new values for 64-bit time_t kernel interfaces. The __USE_TIME_BITS64 is not defined internally yet, although the internal header is used when building the 64-bit stat implementations. Reviewed-by: Lukasz Majewski <lukma@denx.de> Reviewed-by: Carlos O'Donell <carlos@redhat.com> Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-06-15y2038: Use a common definition for shmid_dsAdhemerval Zanella3-11/+36
Instead of replicate the same definitions from struct_shmid64_ds.h on the multiple struct_shmid_ds.h, use a common header which is included when required (struct_shmid64_ds_helper.h). The __USE_TIME_BITS64 is not defined internally yet, although the internal header is used when building the 64-bit semctl implementation. Reviewed-by: Carlos O'Donell <carlos@redhat.com> Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-06-15y2038: Use a common definition for semid_dsAdhemerval Zanella3-7/+33
Instead of replicate the same definitions from struct_semid64_ds.h on the multiple struct_semid_ds.h, use a common header which is included when required (struct_semid64_ds_helper.h). The __USE_TIME_BITS64 is not defined internally yet, although the internal header is used when building the 64-bit semctl implementation. Reviewed-by: Carlos O'Donell <carlos@redhat.com> Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-06-15y2038: Use a common definition for msqid_dsLukasz Majewski3-12/+40
Instead of replicate the same definitions from struct_msqid64_ds.h on the multiple struct_msqid_ds.h, use a common header which is included when required (struct_msqid64_ds_helper.h). The __USE_TIME_BITS64 is not defined internally yet, although the internal header is used when building the 64-bit stat implementations. Reviewed-by: Carlos O'Donell <carlos@redhat.com> Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-06-15y2038: Use a common definition for statLukasz Majewski2-21/+95
Instead of replicate the same definitions from struct_stat_time64.h on the multiple struct_stat.h, use a common header which is included when required (struct_stat_time64_helper.h). The 64-bit time support is added only for LFS support. The __USE_TIME_BITS64 is not defined internally yet, although the internal header is used when building the 64-bit stat implementations. Reviewed-by: Carlos O'Donell <carlos@redhat.com> Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-06-15y2038: linux: Add __USE_TIME_BITS64 support for struct timexAdhemerval Zanella1-0/+31
The __USE_TIME_BITS64 is not defined internally yet. Reviewed-by: Lukasz Majewski <lukma@denx.de> Reviewed-by: Carlos O'Donell <carlos@redhat.com> Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-02-01sysconf: Add _SC_MINSIGSTKSZ/_SC_SIGSTKSZ [BZ #20305]H.J. Lu1-0/+33
Add _SC_MINSIGSTKSZ for the minimum signal stack size derived from AT_MINSIGSTKSZ, which is the minimum number of bytes of free stack space required in order to gurantee successful, non-nested handling of a single signal whose handler is an empty function, and _SC_SIGSTKSZ which is the suggested minimum number of bytes of stack space required for a signal stack. If AT_MINSIGSTKSZ isn't available, sysconf (_SC_MINSIGSTKSZ) returns MINSIGSTKSZ. On Linux/x86 with XSAVE, the signal frame used by kernel is composed of the following areas and laid out as: ------------------------------ | alignment padding | ------------------------------ | xsave buffer | ------------------------------ | fsave header (32-bit only) | ------------------------------ | siginfo + ucontext | ------------------------------ Compute AT_MINSIGSTKSZ value as size of xsave buffer + size of fsave header (32-bit only) + size of siginfo and ucontext + alignment padding. If _SC_SIGSTKSZ_SOURCE or _GNU_SOURCE are defined, MINSIGSTKSZ and SIGSTKSZ are redefined as /* Default stack size for a signal handler: sysconf (SC_SIGSTKSZ). */ # undef SIGSTKSZ # define SIGSTKSZ sysconf (_SC_SIGSTKSZ) /* Minimum stack size for a signal handler: SIGSTKSZ. */ # undef MINSIGSTKSZ # define MINSIGSTKSZ SIGSTKSZ Compilation will fail if the source assumes constant MINSIGSTKSZ or SIGSTKSZ. The reason for not simply increasing the kernel's MINSIGSTKSZ #define (apart from the fact that it is rarely used, due to glibc's shadowing definitions) was that userspace binaries will have baked in the old value of the constant and may be making assumptions about it. For example, the type (char [MINSIGSTKSZ]) changes if this #define changes. This could be a problem if an newly built library tries to memcpy() or dump such an object defined by and old binary. Bounds-checking and the stack sizes passed to things like sigaltstack() and makecontext() could similarly go wrong.
2021-01-06Add SEGV_MTEAERR and SEGV_MTESERR from Linux 5.10.Joseph Myers1-1/+5
Linux 5.10 adds constants SEGV_MTEAERR and SEGV_MTESERR to asm-generic/siginfo.h. Add these to glibc's bits/siginfo-consts.h. Tested for x86_64.
2021-01-02Update copyright dates with scripts/update-copyrightsPaul Eggert74-74/+74
I used these shell commands: ../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright (cd ../glibc && git commit -am"[this commit message]") and then ignored the output, which consisted lines saying "FOO: warning: copyright statement not found" for each of 6694 files FOO. I then removed trailing white space from benchtests/bench-pthread-locks.c and iconvdata/tst-iconv-big5-hkscs-to-2ucs4.c, to work around this diagnostic from Savannah: remote: *** pre-commit check failed ... remote: *** error: lines with trailing whitespace found remote: error: hook declined to update refs/heads/master
2020-10-27Add IP_RECVERR_RFC4884 and IPV6_RECVERR_RFC4884 from Linux 5.9.Joseph Myers1-0/+2
Add the new constants IP_RECVERR_RFC4884 and IPV6_RECVERR_RFC4884 from Linux 5.9 to bits/in.h. Tested for x86_64.
2020-10-09linux: Move the struct stat{64} to struct_stat.hAdhemerval Zanella2-100/+132
The common definitions are moved to a Linux generic stat.h while the struct stat{64} definition are moved to a arch-specific struct_stat.h header. Checked with a build for all affected ABIs. I also checked on x86_64, i686, powerpc, powerpc64le, sparcv9, sparc64, s390, and s390x. Reviewed-by: Lukasz Majewski <lukma@denx.de>
2020-10-09Remove mknod wrapper functions, move them to symbolsAdhemerval Zanella1-7/+0
This patch removes the mknod and mknodat static wrapper and add the symbols on the libc with the expected names. Both the prototypes of the internal symbol linked by the static wrappers and the inline redirectors are also removed from the installed sys/stat.h header file. The wrapper implementation license LGPL exception is also removed since it is no longer statically linked to binaries. Internally the _STAT_VER* definitions are moved to the arch-specific xstatver.h file. Checked with a build for all affected ABIs. I also checked on x86_64, i686, powerpc, powerpc64le, sparcv9, sparc64, s390, and s390x. Reviewed-by: Lukasz Majewski <lukma@denx.de>
2020-10-09Remove stat wrapper functions, move them to exported symbolsAdhemerval Zanella1-6/+0
This patch removes the stat, stat64, lstat, lstat64, fstat, fstat64, fstatat, and fstatat64 static wrapper and add the symbol on the libc with the expected names. Both the prototypes of the internal symbol linked by the static wrappers and the inline redirectors are also removed from the installed sys/stat.h header file. The wrapper implementation license LGPL exception is also removed since it is no longer statically linked to binaries. Internally the _STAT_VER* definitions are moved to a arch-specific xstatver.h file. The internal defines that redirects internals {f}stat{at} to their {f}xstat{at} counterparts are removed for Linux (!NO_RTLD_HIDDEN). Hurd still requires them since {f}stat{at} pulls extra objects that makes the loader build fail otherwise (I haven't dig into why exactly). Checked with a build for all affected ABIs. I also checked on x86_64, i686, powerpc, powerpc64le, sparcv9, sparc64, s390, and s390x. Reviewed-by: Lukasz Majewski <lukma@denx.de>
2020-07-16Linux: Remove rseq supportFlorian Weimer1-29/+0
The kernel ABI is not finalized, and there are now various proposals to change the size of struct rseq, which would make the glibc ABI dependent on the version of the kernels used for building glibc. This is of course not acceptable. This reverts commit 48699da1c468543ade14777819bd1b4d652709de ("elf: Support at least 32-byte alignment in static dlopen"), commit 8f4632deb3545b2949cec5454afc3cb21a0024ea ("Linux: rseq registration tests"), commit 6e29cb3f61ff5432c78a1c84b0d9b123a350ab36 ("Linux: Use rseq in sched_getcpu if available"), and commit 0c76fc3c2b346dc5401dc055d97d4279632b0fb3 ("Linux: Perform rseq registration at C startup and thread creation"), resolving the conflicts introduced by the ARC port and the TLS static surplus changes. Reviewed-by: Carlos O'Donell <carlos@redhat.com>
2020-07-09sysv: linux: Add 64-bit time_t variant for shmctlAdhemerval Zanella2-3/+40
To provide a y2038 safe interface a new symbol __shmctl64 is added and __shmctl is change to call it instead (it adds some extra buffer copying for the 32 bit time_t implementation). Two new structures are added: 1. kernel_shmid64_ds: used internally only on 32-bit architectures to issue the syscall. A handful of architectures (hppa, i386, mips, powerpc32, and sparc32) require specific implementations due to their kernel ABI. 2. shmid_ds64: this is only for __TIMESIZE != 64 to use along with the 64-bit shmctl. It is different than the kernel struct because the exported 64-bit time_t might require different alignment depending on the architecture ABI. So the resulting implementation does: 1. For 64-bit architectures it assumes shmid_ds already contains 64-bit time_t fields and will result in just the __shmctl symbol using the __shmctl64 code. The shmid_ds argument is passed as-is to the syscall. 2. For 32-bit architectures with default 64-bit time_t (newer ABIs such riscv32 or arc), it will also result in only one exported symbol but with the required high/low time handling. 3. Finally for 32-bit architecture with both 32-bit and 64-bit time_t support we follow the already set way to provide one symbol with 64-bit time_t support and implement the 32-bit time_t support using of the 64-bit one. The default 32-bit symbol will allocate and copy the shmid_ds over multiple buffers, but this should be deprecated in favor of the __shmctl64 anyway. Checked on i686-linux-gnu and x86_64-linux-gnu. I also did some sniff tests on powerpc, powerpc64, mips, mips64, armhf, sparcv9, and sparc64. Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Tested-by: Alistair Francis <alistair.francis@wdc.com> Tested-by: Carlos O'Donell <carlos@redhat.com> Reviewed-by: Carlos O'Donell <carlos@redhat.com>
2020-07-09sysvipc: Remove the linux shm-pad.h fileAdhemerval Zanella3-61/+11
Each architecture overrides the struct msqid_ds which its required kernel ABI one. Checked on x86_64-linux-gnu and some bases sysvipc tests on hppa, mips, mipsle, mips64, mips64le, sparc64, sparcv9, powerpc64le, powerpc64, and powerpc. Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Tested-by: Alistair Francis <alistair.francis@wdc.com> Tested-by: Carlos O'Donell <carlos@redhat.com> Reviewed-by: Carlos O'Donell <carlos@redhat.com>
2020-07-09sysvipc: Split out linux struct shmid_dsAdhemerval Zanella2-33/+58
This will allow us to have architectures specify their own version. Not semantic changes expected. Checked with a build against the all affected ABIs. Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Tested-by: Alistair Francis <alistair.francis@wdc.com> Tested-by: Carlos O'Donell <carlos@redhat.com> Reviewed-by: Carlos O'Donell <carlos@redhat.com>
2020-07-09sysv: linux: Add 64-bit time_t variant for msgctlAdhemerval Zanella2-3/+41
To provide a y2038 safe interface a new symbol __msgctl64 is added and __msgctl is change to call it instead (it adds some extra buffer coping for the 32 bit time_t implementation). Two new structures are added: 1. kernel_msqid64_ds: used internally only on 32-bit architectures to issue the syscall. A handful of architectures (hppa, i386, mips, powerpc32, and sparc32) require specific implementations due to their kernel ABI. 2. msqid_ds64: this is only for __TIMESIZE != 64 to use along with the 64-bit msgctl. It is different than the kernel struct because the exported 64-bit time_t might require different alignment depending on the architecture ABI. So the resulting implementation does: 1. For 64-bit architectures it assumes msqid_ds already contains 64-bit time_t fields and will result in just the __msgctl symbol using the __msgctl64 code. The msgid_ds argument is passed as-is to the syscall. 2. For 32-bit architectures with default 64-bit time_t (newer ABIs such riscv32 or arc), it will also result in only one exported symbol but with the required high/low time handling. 3. Finally for 32-bit architecture with both 32-bit and 64-bit time_t support we follow the already set way to provide one symbol with 64-bit time_t support and implement the 32-bit time_t support using the 64-bit time_t. The default 32-bit symbol will allocate and copy the msqid_ds over multiple buffers, but this should be deprecated in favor of the __msgctl64 anyway. Checked on i686-linux-gnu and x86_64-linux-gnu. I also did some sniff tests on powerpc, powerpc64, mips, mips64, armhf, sparcv9, and sparc64. Tested-by: Carlos O'Donell <carlos@redhat.com> Reviewed-by: Carlos O'Donell <carlos@redhat.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Tested-by: Alistair Francis <alistair.francis@wdc.com>
2020-07-09sysvipc: Remove the linux msq-pad.h fileAdhemerval Zanella2-47/+12
Each architecture overrides the struct msqid_ds which its required kernel ABI one. Checked on x86_64-linux-gnu and some bases sysvipc tests on hppa, mips, mipsle, mips64, mips64le, sparc64, sparcv9, powerpc64le, powerpc64, and powerpc. Tested-by: Carlos O'Donell <carlos@redhat.com> Reviewed-by: Carlos O'Donell <carlos@redhat.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Tested-by: Alistair Francis <alistair.francis@wdc.com>
2020-07-09sysvipc: Split out linux struct semid_dsAdhemerval Zanella2-33/+57
This will allow us to have architectures specify their own version. Not semantic changes expected. Checked with a build against the all affected ABIs. Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Tested-by: Alistair Francis <alistair.francis@wdc.com> Reviewed-by: Carlos O'Donell <carlos@redhat.com> Tested-by: Carlos O'Donell <carlos@redhat.com>
2020-07-09sysv: linux: Add 64-bit time_t variant for semctlAdhemerval Zanella2-14/+40
Different than others 64-bit time_t syscalls, the SysIPC interface does not provide a new set of syscall for y2038 safeness. Instead it uses unused fields in semid_ds structure to return the high bits for the timestamps. To provide a y2038 safe interface a new symbol __semctl64 is added and __semctl is change to call it instead (it adds some extra buffer copying for the 32 bit time_t implementation). Two new structures are added: 1. kernel_semid64_ds: used internally only on 32-bit architectures to issue the syscall. A handful of architectures (hppa, i386, mips, powerpc32, sparc32) require specific implementations due their kernel ABI. 2. semid_ds64: this is only for __TIMESIZE != 64 to use along with the 64-bit semctl. It is different than the kernel struct because the exported 64-bit time_t might require different alignment depending on the architecture ABI. So the resulting implementation does: 1. For 64-bit architectures it assumes semid_ds already contains 64-bit time_t fields and will result in just the __semctl symbol using the __semctl64 code. The semid_ds argument is passed as-is to the syscall. 2. For 32-bit architectures with default 64-bit time_t (newer ABIs such riscv32 or arc), it will also result in only one exported symbol but with the required high/low handling. It might be possible to optimize it further to avoid the kernel_semid64_ds to semun transformation if the exported ABI for the architectures matches the expected kernel ABI, but the implementation is already complex enough and don't think this should be a hotspot in any case. 3. Finally for 32-bit architecture with both 32-bit and 64-bit time_t support we follow the already set way to provide one symbol with 64-bit time_t support and implement the 32-bit time_t support using the 64-bit one. The default 32-bit symbol will allocate and copy the semid_ds over multiple buffers, but this should be deprecated in favor of the __semctl64 anyway. Checked on i686-linux-gnu and x86_64-linux-gnu. I also did some sniff tests on powerpc, powerpc64, mips, mips64, armhf, sparcv9, and sparc64. Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Tested-by: Alistair Francis <alistair.francis@wdc.com> Tested-by: Vineet Gupta <vgupta@synopsys.com> Reviewed-by: Carlos O'Donell <carlos@redhat.com> Tested-by: Carlos O'Donell <carlos@redhat.com>
2020-07-07signal: Move sys_errlist to a compat symbolAdhemerval Zanella1-32/+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>
2020-07-07signal: Add signum-{generic,arch}.hAdhemerval Zanella2-58/+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>
2020-07-06Linux: Perform rseq registration at C startup and thread creationMathieu Desnoyers1-0/+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.
2020-06-23Add MREMAP_DONTUNMAP from Linux 5.7Joseph Myers1-0/+1
Add the new constant MREMAP_DONTUNMAP from Linux 5.7 to bits/mman-shared.h. Tested with build-many-glibcs.py.
2020-05-06semaphore: consolidate arch headers into a generic oneVineet Gupta1-0/+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>
2020-04-29semctl: Remove the sem-pad.h fileAlistair Francis3-47/+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>
2020-04-29bits/sem.h: Split out struct semid_dsAlistair Francis2-23/+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>
2020-04-19provide y2038 safe socket constants for default/asm-generic ABIVineet Gupta1-2/+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>
2020-04-15Linux: Remove <sys/sysctl.h> and the sysctl functionFlorian Weimer1-1/+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>
2020-02-13Use gcc -finput-charset=ascii for check-installed-headers.Stefan Liebler1-1/+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 <