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2025-01-01Update copyright dates with scripts/update-copyrightsPaul Eggert15-15/+15
2024-04-02Always define __USE_TIME_BITS64 when 64 bit time_t is usedAdhemerval Zanella1-2/+2
It was raised on libc-help [1] that some Linux kernel interfaces expect the libc to define __USE_TIME_BITS64 to indicate the time_t size for the kABI. Different than defined by the initial y2038 design document [2], the __USE_TIME_BITS64 is only defined for ABIs that support more than one time_t size (by defining the _TIME_BITS for each module). The 64 bit time_t redirects are now enabled using a different internal define (__USE_TIME64_REDIRECTS). There is no expected change in semantic or code generation. Checked on x86_64-linux-gnu, i686-linux-gnu, aarch64-linux-gnu, and arm-linux-gnueabi [1] https://sourceware.org/pipermail/libc-help/2024-January/006557.html [2] https://sourceware.org/glibc/wiki/Y2038ProofnessDesign Reviewed-by: DJ Delorie <dj@redhat.com>
2024-01-01Update copyright dates with scripts/update-copyrightsPaul Eggert15-15/+15
2023-01-06Update copyright dates with scripts/update-copyrightsJoseph Myers15-15/+15
2022-01-01Update copyright dates with scripts/update-copyrightsPaul Eggert15-15/+15
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 7061 files FOO. I then removed trailing white space from math/tgmath.h, support/tst-support-open-dev-null-range.c, and sysdeps/x86_64/multiarch/strlen-vec.S, to work around the following obscure pre-commit check failure diagnostics from Savannah. I don't know why I run into these diagnostics whereas others evidently do not. remote: *** 912-#endif remote: *** 913: remote: *** 914- remote: *** error: lines with trailing whitespace found ... remote: *** error: sysdeps/unix/sysv/linux/statx_cp.c: trailing lines
2021-12-31time: Refactor timesize.h for some ABIsAdhemerval Zanella1-0/+22
Commit a4b413135535c83a changed default __TIMESIZE to 64, however it added sub-architecture timesize.h for powerpc, s390, and sparc. Also simplify mips by removing _MIPS_SIM usage (which would require to add sgidefs inclusion.
2021-12-09nptl: Add rseq registrationFlorian Weimer1-0/+37
The rseq area is placed directly into struct pthread. rseq registration failure is not treated as an error, so it is possible that threads run with inconsistent registration status. <sys/rseq.h> is not yet installed as a public header. Co-Authored-By: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Reviewed-by: Szabolcs Nagy <szabolcs.nagy@arm.com> Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
2021-10-07S390: Add PCI_MIO and SIE HWCAPsStefan Liebler1-0/+7
Both new HWCAPs were introduced in these kernel commits: - 7e8403ecaf884f307b627f3c371475913dd29292 "s390: add HWCAP_S390_PCI_MIO to ELF hwcaps" - 7e82523f2583e9813e4109df3656707162541297 "s390/hwcaps: make sie capability regular hwcap" Also note that the kernel commit 511ad531afd4090625def4d9aba1f5227bd44b8e "s390/hwcaps: shorten HWCAP defines" has shortened the prefix of the macros from "HWCAP_S390_" to "HWCAP_". For compatibility reasons, we do not change the prefix in public glibc header file.
2021-09-03Remove "Contributed by" linesSiddhesh Poyarekar1-1/+0
We stopped adding "Contributed by" or similar lines in sources in 2012 in favour of git logs and keeping the Contributors section of the glibc manual up to date. Removing these lines makes the license header a bit more consistent across files and also removes the possibility of error in attribution when license blocks or files are copied across since the contributed-by lines don't actually reflect reality in those cases. Move all "Contributed by" and similar lines (Written by, Test by, etc.) into a new file CONTRIBUTED-BY to retain record of these contributions. These contributors are also mentioned in manual/contrib.texi, so we just maintain this additional record as a courtesy to the earlier developers. The following scripts were used to filter a list of files to edit in place and to clean up the CONTRIBUTED-BY file respectively. These were not added to the glibc sources because they're not expected to be of any use in future given that this is a one time task: https://gist.github.com/siddhesh/b5ecac94eabfd72ed2916d6d8157e7dc https://gist.github.com/siddhesh/15ea1f5e435ace9774f485030695ee02 Reviewed-by: Carlos O'Donell <carlos@redhat.com>
2021-06-15y2038: Use a common definition for statLukasz Majewski1-24/+32
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>
2021-02-16S390: Add new hwcap values.Stefan Liebler1-0/+2
The new hwcap values indicate support for arch14 architecture.
2021-01-02Update copyright dates with scripts/update-copyrightsPaul Eggert13-13/+13
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
2020-10-09linux: Move the struct stat{64} to struct_stat.hAdhemerval Zanella1-39/+7
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 Zanella1-10/+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 Zanella1-12/+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>
2020-08-21S390: Sync HWCAP names with kernel by adding aliases [BZ #25971]Stefan Liebler1-0/+3
Unfortunately some HWCAP names like HWCAP_S390_VX differs between kernel (see <kernel>/arch/s390/include/asm/elf.h) and glibc. Therefore, those HWCAP names from kernel are now introduced as alias
2020-07-16Linux: Remove rseq supportFlorian Weimer1-37/+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>
2020-07-06Linux: Perform rseq registration at C startup and thread creationMathieu Desnoyers1-0/+37
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.
2020-04-02sysv: Define __KERNEL_OLD_TIMEVAL_MATCHES_TIMEVAL64Alistair Francis1-0/+6
On y2038 safe 32-bit systems the Linux kernel expects itimerval and rusage to use a 32-bit time_t, even though the other time_t's are 64-bit. There are currently no plans to make 64-bit time_t versions of these structs. There are also other occurrences where the time passed to the kernel via timeval doesn't match the wordsize. To handle these cases let's define a new macro __KERNEL_OLD_TIMEVAL_MATCHES_TIMEVAL64. This macro specifies if the kernel's old_timeval matches the new timeval64. This should be 1 for 64-bit architectures except for Alpha's osf syscalls. The define should be 0 for 32-bit architectures and Alpha's osf syscalls. Reviewed-by: Lukasz Majewski <lukma@denx.de> Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2020-02-07y2038: Define __suseconds64_t type to be used with struct __timeval64Lukasz Majewski1-0/+1
The __suseconds64_t type is supposed to be the 64 bit type across all architectures. It would be mostly used internally in the glibc - however, when passed to Linux kernel (very unlikely), if necessary, it shall be converted to 32 bit type (i.e. __suseconds_t) Build tests: ./src/scripts/build-many-glibcs.py glibcs Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2020-01-01Update copyright dates with scripts/update-copyrights.Joseph Myers13-13/+13
2019-10-24Define __STATFS_MATCHES_STATFS64Alistair Francis1-0/+5
Add a new macro __STATFS_MATCHES_STATFS64 that specifies if fsblkcnt_t matches fsblkcnt64_t and if fsfilcnt_t matches fsfilcnt64_t. As we don't have the padding we also need to update the overflow checker to not access the undefined members.
2019-10-10sysvipc: Set ipc_perm mode as mode_t (BZ#18231)Adhemerval Zanella1-60/+0
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
2019-09-07Prefer https to http for gnu.org and fsf.org URLsPaul Eggert14-14/+14
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
2019-08-15login: Add nonstring attributes to struct utmp, struct utmpx [BZ #24899]Florian Weimer2-5/+10
Commit 7532837d7b03b3ca5b9a63d77a5bd81dd23f3d9c ("The -Wstringop-truncation option new in GCC 8 detects common misuses") added __attribute_nonstring__ to bits/utmp.h, but it did not update the parallel bits/utmpx.h header. In struct utmp, the nonstring attribute for ut_id was missing.
2019-03-22S390: Add new hwcap values for new cpu architecture arch13.Stefan Liebler1-0/+4
The new hwcap values indicate support for: -"Vector-Enhancements Facility 2" (tag "vxe2", hwcap 2^15) -"Vector-Packed-Decimal-Enhancement Facility" (tag "vxp", hwcap 2^16) -"Enhanced-Sort Facility" (tag "sort", hwcap 2^17) -"Deflate-Conversion Facility" (tag "dflt", hwcap 2^18) The vxe2 hwcap is also marked as important hwcap. ChangeLog: * sysdeps/s390/dl-procinfo.c (_dl_s390_cap_flags): Add vxe2, vxp, dflt, sort flags. * sysdeps/s390/dl-procinfo.h: Add HWCAP_S390_VXRS_EXT2, HWCAP_S390_VXRS_PDE, HWCAP_S390_SORT, HWCAP_S390_DFLT capabilities. (HWCAP_IMPORTANT): Add HWCAP_S390_VXRS_EXT2. * sysdeps/unix/sysv/linux/s390/bits/hwcap.h (HWCAP_S390_VXRS_EXT2, HWCAP_S390_VXRS_PDE, HWCAP_S390_SORT, HWCAP_S390_DFLT): Define.
2019-01-01Update copyright dates with scripts/update-copyrights.Joseph Myers14-14/+14
* 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.
2018-10-10Use common bits/shm.h for more architectures.Joseph Myers1-111/+0
sysdeps/unix/sysv/linux/bits/shm.h has padding after time fields in struct shmid_ds unconditionally, and thus is only suitable for 32-bit architectures (no 64-bit configurations use this file); sysdeps/unix/sysv/linux/generic/bits/shm.h is substantively the same, except that the padding is conditioned on __WORDSIZE == 32, and so it can be used for 64-bit architectures as well. This patch adds the conditionals to sysdeps/unix/sysv/linux/bits/shm.h. The linux/generic/ version is then no longer needed and so is removed, as are the alpha and s390 versions which are also no longer needed. The other architecture-specific versions have different padding, layout, types or SHMLBA definitions and so are still needed after this change. This is essentially the same change for bits/shm.h as the bits/msq.h patch and the bits/sem.h patch. However, the details of the padding variations for the architectures that aren't changed are not all the same between msqid_ds, shmid_ds and semid_ds. Tested with build-many-glibcs.py. * sysdeps/unix/sysv/linux/bits/shm.h: Include <bits/wordsize.h>. (struct shmid_ds): Condition padding after time fields on [__WORDSIZE == 32]. * sysdeps/unix/sysv/linux/alpha/bits/shm.h: Remove file. * sysdeps/unix/sysv/linux/generic/bits/shm.h: Likewise. * sysdeps/unix/sysv/linux/s390/bits/shm.h: Likewise.
2018-10-10Use common bits/sem.h for more architectures.Joseph Myers1-91/+0
sysdeps/unix/sysv/linux/bits/sem.h has padding after time fields in struct semid_ds unconditionally, and thus is only suitable for 32-bit architectures (no 64-bit configurations use this file); sysdeps/unix/sysv/linux/generic/bits/sem.h is substantively the same, except that the padding is conditioned on __WORDSIZE == 32, and so it can be used for 64-bit architectures as well. This patch adds the conditionals to sysdeps/unix/sysv/linux/bits/sem.h. The linux/generic/ version is then no longer needed and so is removed, as are the alpha, ia64 and s390 versions which are also no longer needed. The other architecture-specific versions have different padding or types and so are still needed after this change. This is essentially the same change for bits/sem.h as the bits/msq.h patch. However, the details of the padding variations for the architectures that aren't changed are not all the same between msqid_ds and semid_ds. Tested with build-many-glibcs.py. * sysdeps/unix/sysv/linux/bits/sem.h: Include <bits/wordsize.h>. (struct semid_ds): Condition padding after time fields on [__WORDSIZE == 32]. * sysdeps/unix/sysv/linux/alpha/bits/sem.h: Remove file. * sysdeps/unix/sysv/linux/generic/bits/sem.h: Likewise. * sysdeps/unix/sysv/linux/ia64/bits/sem.h: Likewise. * sysdeps/unix/sysv/linux/s390/bits/sem.h: Likewise.
2018-10-10Use common bits/msq.h for more architectures.Joseph Myers1-85/+0
sysdeps/unix/sysv/linux/bits/msq.h has padding after time fields in struct msqid_ds unconditionally, and thus is only suitable for 32-bit architectures (no 64-bit configurations use this file); sysdeps/unix/sysv/linux/generic/bits/msq.h is substantively the same, except that the padding is conditioned on __WORDSIZE == 32, and so it can be used for 64-bit architectures as well. This patch adds the conditionals to sysdeps/unix/sysv/linux/bits/msq.h. The linux/generic/ version is then no longer needed and so is removed, as are the alpha, ia64 and s390 versions which are also no longer needed. The other architecture-specific versions have different padding or types and so are still needed after this change. Tested with build-many-glibcs.py. * sysdeps/unix/sysv/linux/bits/msq.h: Include <bits/wordsize.h>. (struct msqid_ds): Condition padding after time fields on [__WORDSIZE == 32]. * sysdeps/unix/sysv/linux/alpha/bits/msq.h: Remove file. * sysdeps/unix/sysv/linux/generic/bits/msq.h: Likewise. * sysdeps/unix/sysv/linux/ia64/bits/msq.h: Likewise. * sysdeps/unix/sysv/linux/s390/bits/msq.h: Likewise.
2018-09-25Unify more sys/procfs.h headers.Joseph Myers3-0/+134
This patch continues the process of unifying sys/procfs.h headers for architectures using the Linux kernel. A bits/procfs-id.h header is added to define __pr_uid_t and __pr_gid_t for the types of pr_uid and pr_gid; the default version of this header uses unsigned int. On some architectures, sys/procfs.h has copies of 32-bit structures for 64-bit builds; those move into a bits/procfs-extra.h header (they can't go in bits/procfs.h because they have to come *after* other declarations from sys/procfs.h). Given appropriate versions of these headers, six more architectures can then move to providing only bits/procfs*.h without duplicating the rest of the contents of sys/procfs.h. Only alpha needs a further bits/ header to be added before it can stop having its own sys/procfs.h. Tested for x86_64 and x86, and with build-many-glibcs.py. * sysdeps/unix/sysv/linux/sys/procfs.h: Include <bits/procfs-id.h> and <bits/procfs-extra.h>. (struct elf_prpsinfo): Use __pr_uid_t and __pr_gid_t as types of pr_uid and pr_gid. * sysdeps/unix/sysv/linux/Makefile [$(subdir) = misc] (sysdep_headers): Add bits/procfs-id.h and bits/procfs-extra.h. * sysdeps/unix/sysv/linux/bits/procfs-extra.h: New file. * sysdeps/unix/sysv/linux/bits/procfs-id.h: Likewise. * sysdeps/unix/sysv/linux/arm/bits/procfs-id.h: Likewise. * sysdeps/unix/sysv/linux/arm/bits/procfs.h: Likewise. * sysdeps/unix/sysv/linux/m68k/bits/procfs-id.h: Likewise. * sysdeps/unix/sysv/linux/m68k/bits/procfs.h: Likewise. * sysdeps/unix/sysv/linux/s390/bits/procfs-extra.h: Likewise. * sysdeps/unix/sysv/linux/s390/bits/procfs-id.h: Likewise. * sysdeps/unix/sysv/linux/s390/bits/procfs.h: Likewise. * sysdeps/unix/sysv/linux/sh/bits/procfs-id.h: Likewise. * sysdeps/unix/sysv/linux/sh/bits/procfs.h: Likewise. * sysdeps/unix/sysv/linux/sparc/bits/procfs-extra.h: Likewise. * sysdeps/unix/sysv/linux/sparc/bits/procfs-id.h: Likewise. * sysdeps/unix/sysv/linux/sparc/bits/procfs.h: Likewise. * sysdeps/unix/sysv/linux/x86/bits/procfs-id.h: Likewise. * sysdeps/unix/sysv/linux/x86/bits/procfs.h: Likewise. * sysdeps/unix/sysv/linux/arm/sys/procfs.h: Remove file. * sysdeps/unix/sysv/linux/m68k/sys/procfs.h: Likewise. * sysdeps/unix/sysv/linux/s390/sys/procfs.h: Likewise. * sysdeps/unix/sysv/linux/sh/sys/procfs.h: Likewise. * sysdeps/unix/sysv/linux/sparc/sys/procfs.h: Likewise. * sysdeps/unix/sysv/linux/x86/sys/procfs.h: Likewise.
2018-09-18Unify many bits/mman.h headers.Joseph Myers1-45/+0
Many bits/mman.h headers for Linux architectures have exactly the same contents, up to whitespace, comments and the number of leading 0s on constants. Specifically, this applies to architectures that, in the Linux kernel, either have no uapi/asm/mman.h, or have one that includes asm-generic/mman.h without any changes or additions relevant to glibc (this last case is the one that applies to Arm). It's not useful to have to duplicate the set of MAP_* constants in glibc for all such architectures and any new architectures with that property. Thus, this patch creates a generic sysdeps/unix/sysv/linux/bits/mman.h and removes all the architecture-specific versions that become unnecessary. Further unification remains possible after this patch. For example, the new bits/mman.h could become bits/mman-map-flags-generic.h so that it could also be used by architecture-specific bits/mman.h headers on architectures that use the generic flags but add architecture-specific ones to them. That would allow this common set of MAP_* definitions to be used on ia64 and x86 as well (architectures that include asm-generic/mman.h from their own uapi/asm/mman.h but define additional MAP_* values of their own). Tested with build-many-glibcs.py. * sysdeps/unix/sysv/linux/bits/mman.h: New file. * sysdeps/unix/sysv/linux/aarch64/bits/mman.h: Remove. * sysdeps/unix/sysv/linux/arm/bits/mman.h: Likewise. * sysdeps/unix/sysv/linux/m68k/bits/mman.h: Likewise. * sysdeps/unix/sysv/linux/microblaze/bits/mman.h: Likewise. * sysdeps/unix/sysv/linux/nios2/bits/mman.h: Likewise. * sysdeps/unix/sysv/linux/riscv/bits/mman.h: Likewise. * sysdeps/unix/sysv/linux/s390/bits/mman.h: Likewise. * sysdeps/unix/sysv/linux/sh/bits/mman.h: Likewise.
2018-06-18Add SHM_STAT_ANY from Linux 4.17 to bits/shm.h.Joseph Myers1-0/+1
Linux 4.17 adds a SHM_STAT_ANY constant (ipcs command). This patch adds it to the relevant bits/shm.h headers. Tested for x86_64. * sysdeps/unix/sysv/linux/alpha/bits/shm.h [__USE_MISC] (SHM_STAT_ANY): New macro. * sysdeps/unix/sysv/linux/arm/bits/shm.h [__USE_MISC] (SHM_STAT_ANY): Likewise. * sysdeps/unix/sysv/linux/bits/shm.h [__USE_MISC] (SHM_STAT_ANY): Likewise. * sysdeps/unix/sysv/linux/generic/bits/shm.h [__USE_MISC] (SHM_STAT_ANY): Likewise. * sysdeps/unix/sysv/linux/hppa/bits/shm.h [__USE_MISC] (SHM_STAT_ANY): Likewise. * sysdeps/unix/sysv/linux/ia64/bits/shm.h [__USE_MISC] (SHM_STAT_ANY): Likewise. * sysdeps/unix/sysv/linux/mips/bits/shm.h [__USE_MISC] (SHM_STAT_ANY): Likewise. * sysdeps/unix/sysv/linux/powerpc/bits/shm.h [__USE_MISC] (SHM_STAT_ANY): Likewise. * sysdeps/unix/sysv/linux/s390/bits/shm.h [__USE_MISC] (SHM_STAT_ANY): Likewise. * sysdeps/unix/sysv/linux/sh/bits/shm.h [__USE_MISC] (SHM_STAT_ANY): Likewise. * sysdeps/unix/s