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* nptl: Extract <bits/atomic_wide_counter.h> from pthread_cond_common.cFlorian Weimer2021-11-171-0/+35
| | | | | | | | | | | | | And make it an installed header. This addresses a few aliasing violations (which do not seem to result in miscompilation due to the use of atomics), and also enables use of wide counters in other parts of the library. The debug output in nptl/tst-cond22 has been adjusted to print the 32-bit values instead because it avoids a big-endian/little-endian difference. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* elf: Move LAV_CURRENT to link_lavcurrent.hAdhemerval Zanella2021-11-151-0/+25
| | | | No functional change.
* Add missing braces to bsearch inline implementation [BZ #28400]Florian Weimer2021-09-301-1/+3
| | | | | | | | | | GCC treats the pragma as a statement, so that the else branch only consists of the pragma, not the return statement. Fixes commit a725ff1de965f4cc4f36a7e8ae795d40ca0350d7 ("Suppress -Wcast-qual warnings in bsearch"). Reviewed-by: H.J. Lu <hjl.tools@gmail.com>
* Suppress -Wcast-qual warnings in bsearchJonathan Wakely2021-09-301-1/+8
| | | | | | | | | | The first cast to (void *) is redundant but should be (const void *) anyway, because that's the type of the lvalue being assigned to. The second cast is necessary and intentionally not const-correct, so tell the compiler not to warn about it. Reviewed-by: Florian Weimer <fweimer@redhat.com>
* Update floating-point feature test macro handling for C2XJoseph Myers2021-06-011-2/+26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ISO C2X has made some changes to the handling of feature test macros related to features from the floating-point TSes, and to exactly what such features are present in what headers, that require corresponding changes in glibc. * For the few features that were controlled by __STDC_WANT_IEC_60559_BFP_EXT__ (and the corresponding DFP macro) in C2X, there is now instead a new feature test macro __STDC_WANT_IEC_60559_EXT__ covering both binary and decimal FP. This controls CR_DECIMAL_DIG in <float.h> (provided by GCC; I implemented support for the new feature test macro for GCC 11) and the totalorder and payload functions in <math.h>. C2X no longer says anything about __STDC_WANT_IEC_60559_BFP_EXT__ (so it's appropriate for that macro to continue to enable exactly the features from TS 18661-1). * The SNAN macros for each floating-point type have moved to <float.h> (and been renamed in the process). Thus, the copies in <math.h> should only be defined for __STDC_WANT_IEC_60559_BFP_EXT__, not for C2X. * The fmaxmag and fminmag functions have been removed (replaced by new functions for the new min/max operations in IEEE 754-2019). Thus those should also only be declared for __STDC_WANT_IEC_60559_BFP_EXT__. * The _FloatN / _FloatNx handling for the last two points in glibc is trickier, since __STDC_WANT_IEC_60559_TYPES_EXT__ is still in C2X (the integration of TS 18661-3 as an Annex, that is, which hasn't yet been merged into the C standard git repository but has been accepted by WG14), so C2X with that macro should not declare some things that are declared for older standards with that macro. The approach taken here is to provide the declarations (when __STDC_WANT_IEC_60559_TYPES_EXT__ is enabled) only when (defined __USE_GNU || !__GLIBC_USE (ISOC2X)), so if C2X features are enabled then those declarations (that are only in TS 18661-3 and not in C2X) will only be provided if _GNU_SOURCE is defined as well. Thus _GNU_SOURCE remains a superset of the TS features as well as of C2X. Some other somewhat related changes in C2X are not addressed here. There's an open proposal not to include the fmin and fmax functions for the _FloatN / _FloatNx types, given the new min/max operations, which could be handled like the previous point if adopted. And the fromfp functions have been changed to return a result in floating type rather than intmax_t / uintmax_t; my inclination there is to treat that like that change of totalorder type (new symbol versions etc. for the ABI change; old versions become compat symbols and are no longer supported as an API). Tested for x86_64 and x86.
* sysconf: Add _SC_MINSIGSTKSZ/_SC_SIGSTKSZ [BZ #20305]H.J. Lu2021-02-012-1/+28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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.
* Update copyright dates with scripts/update-copyrightsPaul Eggert2021-01-0274-74/+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
* hurd: Add WSTOPPED/WCONTINUED/WEXITED/WNOWAIT support [BZ #23091]Samuel Thibault2020-12-281-0/+8
| | | | | | The new __proc_waitid RPC now expects WEXITED to be passed, allowing to properly implement waitid, and thus define the missing W* macros (according to FreeBSD values).
* hurd: implement SA_SIGINFO signal handlers.Jeremie Koenig2020-12-211-0/+1
| | | | | | | SA_SIGINFO is actually just another way of expressing what we were already passing over with struct sigcontext. This just introduces the SIGINFO interface and fixes the posix values when that interface is requested by the application.
* Replace Minumum/minumum with Minimum/minimumH.J. Lu2020-10-061-1/+1
| | | | Replace Minumum/minumum in comments with Minimum/minimum.
* signal: Move sys_errlist to a compat symbolAdhemerval Zanella2020-07-071-23/+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 Zanella2020-07-073-56/+62
| | | | | | | | | | | | | | | | | | | | 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>
* Rename __LONG_DOUBLE_USES_FLOAT128 to __LDOUBLE_REDIRECTS_TO_FLOAT128_ABIPaul E. Murphy2020-04-301-1/+14
| | | | | | | | | | | | | | | Improve the commentary to aid future developers who will stumble upon this novel, yet not always perfect, mechanism to support alternative formats for long double. Likewise, rename __LONG_DOUBLE_USES_FLOAT128 to __LDOUBLE_REDIRECTS_TO_FLOAT128_ABI now that development work has settled down. The command used was git grep -l __LONG_DOUBLE_USES_FLOAT128 ':!./ChangeLog*' | \ xargs sed -i 's/__LONG_DOUBLE_USES_FLOAT128/__LDOUBLE_REDIRECTS_TO_FLOAT128_ABI/g' Reviewed-by: Tulio Magno Quites Machado Filho <tuliom@linux.ibm.com>
* sysv: Define __KERNEL_OLD_TIMEVAL_MATCHES_TIMEVAL64Alistair Francis2020-04-021-0/+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>
* math: Remove fenvinline.hAdhemerval Zanella2020-03-301-8/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | Similar to string2.h (18b10de7ce) and string3.h (09a596cc2c) this patch removes the fenvinline.h on all architectures. Currently only powerpc implements some optimizations. This kind of optimization is better implemented by the compiler (which handles the architecture ISA transparently). Also, for the specific optimized powerpc implementation the code is becoming convoluted and these micro-optimization are hardly wildly used, even more being a possible hotspot in realword cases (non-default rounding are used only on specific cases and exception handling are done most likely only on errors path). Only x86 implements similar optimization (on fenv.h) also indicates that these should no be on libc. The math/test-fenv already covers all math/test-fenvinline tests, so it is safe to remove it. The powerpc fegetround optimization is moved to internal fenv_libc.h. The BZ#94193 [1] the corresponding GCC bug for adding replacements for these on powerpc. Checked on x86_64-linux-gnu and powerpc64le-linux-gnu. [1] https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94193
* math: Remove mathinlineAdhemerval Zanella2020-03-191-12/+0
| | | | | With m68k bits moved to internal headers, no architectures export additional optimizations on mathinline.
* y2038: Define __suseconds64_t type to be used with struct __timeval64Lukasz Majewski2020-02-071-0/+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>
* Update copyright dates with scripts/update-copyrights.Joseph Myers2020-01-0175-75/+75
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* Do not redirect calls to __GI_* symbols, when redirecting to *ieee128Tulio Magno Quites Machado Filho2019-12-271-0/+1
| | | | | | | | | | | | | | | | | | | | | | On platforms where long double has IEEE binary128 format as a third option (initially, only powerpc64le), many exported functions are redirected to their __*ieee128 equivalents. This redirection is provided by installed headers such as stdio-ldbl.h, and is supposed to work correctly with user code. However, during the build of glibc, similar redirections are employed, in internal headers, such as include/stdio.h, in order to avoid extra PLT entries. These redirections conflict with the redirections to __*ieee128, and must be avoided during the build. This patch protects the second redirections with a test for __LONG_DOUBLE_USES_FLOAT128, a new macro that is defined to 1 when functions that deal with long double typed values reuses the _Float128 implementation (this is currently only true for powerpc64le). Tested for powerpc64le, x86_64, and with build-many-glibcs.py. Co-authored-by: Gabriel F. T. Gomes <gabrielftg@linux.ibm.com> Reviewed-by: Florian Weimer <fweimer@redhat.com>
* Define __STATFS_MATCHES_STATFS64Alistair Francis2019-10-241-0/+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.
* Remove math-finite.hWilco Dijkstra2019-10-211-197/+0
| | | | | | | | Remove math-finite.h redirections for math functions. Passes buildmanyglibc. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* Prefer https to http for gnu.org and fsf.org URLsPaul Eggert2019-09-0776-76/+76
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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
* login: Add nonstring attributes to struct utmp, struct utmpx [BZ #24899]Florian Weimer2019-08-151-1/+2
| | | | | | | | 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.
* Declare some TS 18661-4 interfaces for C2X.Joseph Myers2019-08-132-2/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | C2X (current version in git, postdating the most recent public draft available as a PDF on the WG14 website) adds the interfaces from TS 18661-4, other than the reduction functions, as unconditionally required and visible in <math.h> for hosted implementations; the __STDC_WANT_IEC_60559_FUNCS_EXT__ macro is not included in C2X at all (as the reduction functions aren't included at all, expected to end up in a version of the TS updated to be relative to C2X). This patch updates the glibc headers accordingly, following the same pattern used for 18661-1 functions. As the only 18661-4 functions currently supported are the exp10 functions that have been in glibc for a very long time, this means that in fact __GLIBC_USE (IEC_60559_FUNCS_EXT) ends up being used only to determine the definition of __GLIBC_USE_IEC_60559_FUNCS_EXT_C2X, not yet in any headers other than bits/libc-header-start.h. (I hope to add the other 18661-4 functions to glibc at some point; the main complication is the current lack of MPFR support for many of these functions.) Tested for x86_64. * bits/libc-header-start.h (__GLIBC_USE_IEC_60559_FUNCS_EXT): Update comment. (__GLIBC_USE_IEC_60559_FUNCS_EXT_C2X): New macro. * bits/math-finite.h [__GLIBC_USE (IEC_60559_FUNCS_EXT)]: Change to [__GLIBC_USE (IEC_60559_FUNCS_EXT_C2X)]. * math/bits/mathcalls.h [__GLIBC_USE (IEC_60559_FUNCS_EXT)]: Likewise.
* Declare most TS 18661-1 interfaces for C2X.Joseph Myers2019-08-132-2/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | C2X adds the interfaces from TS 18661-1, and all except a handful in Annex F are unconditionally visible in C2X rather than only visible when __STDC_WANT_IEC_60559_BFP_EXT__ is defined. This patch updates glibc headers accordingly: most uses of __GLIBC_USE (IEC_60559_BFP_EXT) are changed to a new __GLIBC_USE (IEC_60559_BFP_EXT_C2X). (Regarding totalorder and totalordermag, the type-generic macros in tgmath.h will go away when the functions are changed to take pointer arguments.) * bits/libc-header-start.h (__GLIBC_USE_IEC_60559_BFP_EXT): Update comment. (__GLIBC_USE_IEC_60559_BFP_EXT_C2X): New macro. * bits/fenv.h [__GLIBC_USE (IEC_60559_BFP_EXT)]: Change to [__GLIBC_USE (IEC_60559_BFP_EXT_C2X)]. * include/limits.h [__GLIBC_USE (IEC_60559_BFP_EXT)]: Likewise. * math/fenv.h [__GLIBC_USE (IEC_60559_BFP_EXT)]: Likewise. * math/math.h [__GLIBC_USE (IEC_60559_BFP_EXT)]: Likewise. * stdlib/bits/stdlib-ldbl.h [__GLIBC_USE (IEC_60559_BFP_EXT)]: Likewise. * stdlib/stdint.h [__GLIBC_USE (IEC_60559_BFP_EXT)]: Likewise. * stdlib/stdlib.h [__GLIBC_USE (IEC_60559_BFP_EXT)]: Likewise. * sysdeps/aarch64/bits/fenv.h [__GLIBC_USE (IEC_60559_BFP_EXT)]: Likewise. * sysdeps/alpha/fpu/bits/fenv.h [__GLIBC_USE (IEC_60559_BFP_EXT)]: Likewise. * sysdeps/arm/bits/fenv.h [__GLIBC_USE (IEC_60559_BFP_EXT)]: Likewise. * sysdeps/csky/bits/fenv.h [__GLIBC_USE (IEC_60559_BFP_EXT)]: Likewise. * sysdeps/hppa/fpu/bits/fenv.h [__GLIBC_USE (IEC_60559_BFP_EXT)]: Likewise. * sysdeps/ia64/bits/fenv.h [__GLIBC_USE (IEC_60559_BFP_EXT)]: Likewise. * sysdeps/m68k/bits/fenv.h [__GLIBC_USE (IEC_60559_BFP_EXT)]: Likewise. * sysdeps/microblaze/bits/fenv.h [__GLIBC_USE (IEC_60559_BFP_EXT)]: Likewise. * sysdeps/mips/bits/fenv.h [__GLIBC_USE (IEC_60559_BFP_EXT)]: Likewise. * sysdeps/nios2/bits/fenv.h [__GLIBC_USE (IEC_60559_BFP_EXT)]: Likewise. * sysdeps/powerpc/bits/fenv.h [__GLIBC_USE (IEC_60559_BFP_EXT)]: Likewise. * sysdeps/riscv/bits/fenv.h [__GLIBC_USE (IEC_60559_BFP_EXT)]: Likewise. * sysdeps/s390/fpu/bits/fenv.h [__GLIBC_USE (IEC_60559_BFP_EXT)]: Likewise. * sysdeps/sh/bits/fenv.h [__GLIBC_USE (IEC_60559_BFP_EXT)]: Likewise. * sysdeps/sparc/fpu/bits/fenv.h [__GLIBC_USE (IEC_60559_BFP_EXT)]: Likewise. * sysdeps/x86/fpu/bits/fenv.h [__GLIBC_USE (IEC_60559_BFP_EXT)]: Likewise. * math/bits/mathcalls.h [__GLIBC_USE (IEC_60559_BFP_EXT)]: Likewise, except for totalorder, totalordermag, getpayload, setpayload and setpayloadsig. * math/tgmath.h [__GLIBC_USE (IEC_60559_BFP_EXT)]: Likewise, except for totalorder and totalordermag.
* login: Assume that _HAVE_UT_* constants are trueFlorian Weimer2019-08-131-13/+90
| | | | | | Make the GNU version of bits/utmp.h the generic version because all remaining ports use it (with a sysdeps override for Linux s390/s390x).
* Linux: Move getdents64 to <dirent.h>Florian Weimer2019-07-291-0/+21
| | | | | | This matches the location of the declaration in musl. Reviewed-by: Carlos O'Donell <carlos@redhat.com>
* Linux: Add the tgkill functionFlorian Weimer2019-05-141-0/+21
| | | | | | | | | 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>
* Remove obsolete, never-implemented XSI STREAMS declarationsFlorian Weimer2019-03-142-263/+0
| | | | | | | | | | | | | | | | | | | The stub implementations are turned into compat symbols. Linux actually has two reserved system call numbers (for getpmsg and putpmsg), but these system calls have never been implemented, and there are no plans to implement them, so this patch replaces the wrappers with the generic stubs. According to <https://bugzilla.redhat.com/show_bug.cgi?id=436349>, the presence of the XSI STREAMS declarations is a minor portability hazard because they are not actually implemented. This commit does not change the TIRPC support code in sunrpc/rpc_svcout.c. It uses additional XTI functionality and therefore never worked with glibc. Reviewed-by: Carlos O'Donell <carlos@redhat.com>
* Fix location where math-vector-fortran.h is installed.marxin2019-03-071-19/+0
| | | | | | | | | | | | 2019-03-07 Martin Liska <mliska@suse.cz> * math/Makefile: Change location where math-vector-fortran.h is installed. * math/finclude/math-vector-fortran.h: Move from bits/math-vector-fortran.h. * sysdeps/x86/fpu/finclude/math-vector-fortran.h: Move from sysdeps/x86/fpu/bits/math-vector-fortran.h. * scripts/check-installed-headers.sh: Skip Fortran header files. * scripts/check-wrapper-headers.py: Likewise.
* Add new Fortran vector math header file.marxin2019-02-201-0/+19
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* math: Enable <bits/math-finite.h> sysdeps overrideFlorian Weimer2019-02-081-0/+197
| | | | | | | | | sysdeps/ia64/fpu/bits/math-finite.h exists and will be installed on ia64, but during the build, the default math/bits/math-finite.h file is used, which is wrong. Fixes commit 0ac5ae2335292908f39031b1ea9fe8edce433c0f ("Optimize libm").
* Move generic <bits/unistd_ext.h> to a more regular locationFlorian Weimer2019-02-081-0/+21
| | | | | | | | | | No functional change; the previous path worked as well, but it re-added the obsolete sysdeps/generic/bits directory, which was removed (for the first time) in commit c72565e5f1124c2dc72573e83406fe999e56091f. Fixes commit e47d82c99a6db060419b421768aced76bea92997 ("Provide <bits/unistd_ext.h> as a sysdeps header exclusively").
* Update copyright dates with scripts/update-copyrights.Joseph Myers2019-01-0174-74/+74
| | | | | | | * 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.
* Y2038: Add 64-bit time for all architecturesAlbert ARIBAUD (3ADEV)2018-10-241-0/+36
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | glibc support for 64-bit time_t on 32-bit architectures will involve: - Using 64-bit times inside glibc, with conversions to and from 32-bit times taking place as necessary for interfaces using such times. - Adding 64-bit-time support in the glibc public API. This support should be dynamic, i.e. glibc should provide both 32-bit and 64-bit implementations and let user code choose at compile time whether to use the 32-bit or 64-bit interfaces. This requires a glibc-internal name for a type for times that are always 64-bit. Based on __TIMESIZE, a new macro is defined, __TIME64_T_TYPE, which is always the right __*_T_TYPE to hold a 64-bit-time. __TIME64_T_TYPE equals __TIME_T_TYPE if __TIMESIZE equals 64 and equals __SQUAD_T_TYPE otherwise. __time64_t can then replace uses of internal_time_t. This patch was tested by running 'make check' on branch master then applying this patch and its predecessor 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/time64.h: New file. * include/time.h: Replace internal_time_t with __time64_t. * posix/bits/types (__time64_t): Add. * stdlib/Makefile: Add bits/time64.h to includes. * time/tzfile.c: Replace internal_time_t with __time64_t.
* Y2038: provide size of default time_t for target architectureAlbert ARIBAUD (3ADEV)2018-10-241-0/+22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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.
* Add <bits/indirect-return.h>H.J. Lu2018-07-241-0/+25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add <bits/indirect-return.h> and include it in <ucontext.h>. __INDIRECT_RETURN defined in <bits/indirect-return.h> indicates if swapcontext requires special compiler treatment. The default __INDIRECT_RETURN is empty. On x86, when shadow stack is enabled, __INDIRECT_RETURN is defined with indirect_return attribute, which has been added to GCC 9, to indicate that swapcontext returns via indirect branch. Otherwise __INDIRECT_RETURN is defined with returns_twice attribute. When shadow stack is enabled, remove always_inline attribute from prepare_test_buffer in string/tst-xbzero-opt.c to avoid: tst-xbzero-opt.c: In function ‘prepare_test_buffer’: tst-xbzero-opt.c:105:1: error: function ‘prepare_test_buffer’ can never be inlined because it uses setjmp prepare_test_buffer (unsigned char *buf) when indirect_return attribute isn't available. Reviewed-by: Carlos O'Donell <carlos@redhat.com> * bits/indirect-return.h: New file. * misc/sys/cdefs.h (__glibc_has_attribute): New. * sysdeps/x86/bits/indirect-return.h: Likewise. * stdlib/Makefile (headers): Add bits/indirect-return.h. * stdlib/ucontext.h: Include <bits/indirect-return.h>. (swapcontext): Add __INDIRECT_RETURN. * string/tst-xbzero-opt.c (ALWAYS_INLINE): New. (prepare_test_buffer): Use it.
* hurd: Fix shmid_ds's shm_segsz field typeSamuel Thibault2018-06-021-1/+1
| | | | | | * bits/shm.h (struct shmid_ds): Make shm_segsz field size_t instead of int. * sysdeps/gnu/bits/shm.h (struct shmid_ds): Likewise.
* powerpc: Fix the compiler type used with C++ when -mabi=ieeelongdoubleTulio Magno Quites Machado Filho2018-05-111-0/+7
| | | | | | | | | | | | | | | | | | | | | | | | When compiling C++ code with -mabi=ieeelongdouble, KCtype is unavailable and the long double type should be used instead. This is also providing macro __HAVE_FLOAT128_UNLIKE_LDBL in order to identify the kind of long double type is being used in the current compilation unit. Notice that bits/floatn.h cannot benefit from the new macro due to order of header inclusion. * bits/floatn-common.h: Define __HAVE_FLOAT128_UNLIKE_LDBL. * math/math.h: Restrict the prototype definition for the functions issignaling(_Float128) and iszero(_Float128); and template __iseqsig_type<_Float128>, from __HAVE_DISTINCT_FLOAT128 to __HAVE_FLOAT128_UNLIKE_LDBL. * sysdeps/powerpc/bits/floatn.h [__HAVE_FLOAT128 && (!__GNUC_PREREQ (7, 0) || defined __cplusplus) && __LDBL_MANT_DIG__ == 113]: Use long double suffix for __f128() constants; define the type _Float128 as long double; and reuse long double in __CFLOAT128. Signed-off-by: Tulio Magno Quites Machado Filho <tuliom@linux.ibm.com>
* Deprecate ustat syscall interfaceAdhemerval Zanella2018-05-021-30/+0
| | | | | | | | | | | | | | | | | | | | | | | | | As for sysctl, ustat has been deprecated in favor of {f}statfs. Also some newer ports which uses generic interface builds a stub version that returns ENOSYS. This patch deprecates ustat interface by removing ustat.h related headers, adding a compatibility symbol, and avoiding new ports to build and provide the symbol. Checked on x86_64-linux-gnu and i686-linux-gnu. Also checked with a check-abi on all affected ABIs. * NEWS: Add ustat.h deprecation entry. * bits/ustat.h: Remove file. * misc/sys/ustat.h: Likewise. * misc/ustat.h: Likewise. * sysdeps/unix/sysv/linux/generic/ustat.c: Likewise. * misc/Makefile (headers): Remove ustat.h and sys/ustat.h. * misc/ustat.c (__ustat): Rename to __old_ustat and export only in compatibility mode. * sysdeps/unix/sysv/linux/ustat.c (__ustat): Likewise. * sysdeps/unix/sysv/linux/mips/ustat.c: Define DEV_TO_KDEV and use generic Linux implementation.
* hurd: Add missing RLIM_SAVED_MAX/CURSamuel Thibault2018-04-191-0/+4
| | | | * bits/resource.h (RLIM_SAVED_MAX, RLIM_SAVED_CUR): New macros.
* hurd: Fix termios.h symbolsSamuel Thibault2018-04-191-3/+9
| | | | | | | * bits/termios.h [__USE_XOPEN || __USE_XOPEN2K8] (IXANY): Define. [__USE_XOPEN && !__USE_XOPEN2K] (IUCLC, OLCUC): Define. [__USE_XOPEN] (OFDEL): New macro. [__USE_XOPEN && !__USE_XOPEN2K] (XCASE): New macro.
* hurd: remove non-standard siginfo symbolSamuel Thibault2018-04-191-1/+1
| | | | | * bits/types/siginfo_t.h: Remove siginfo struct name, unused and non-compliant.
* hurd: Avoid exposing all <sched.h> symbols from sys/types.hSamuel Thibault2018-04-192-5/+29
| | | | | | | | | | * bits/sched.h: Include <bits/types/struct_sched_param.h> and move struct sched_param definition to it. * sysdeps/unix/sysv/linux/bits/sched.h: Likewise. * bits/types/struct_sched_param.h: New file. * sysdeps/htl/bits/types/struct___pthread_attr.h: Include <bits/types/struct_sched_param.h> instead of <sched.h>. * posix/Makefile (headers): Add bits/types/struct_sched_param.h.
* hurd: Fix symbols expositionSamuel Thibault2018-04-191-0/+2
| | | | | | | | | * bits/in.h [!__USE_MISC]: Do not define struct ip_opts. * conform/data/netinet/in.h-data: Allow sin_ and sin6_ prefix. * sysdeps/gnu/bits/msq.h (struct msqid_ds): Use __wait_queue struct instead of wait_queue. * sysdeps/gnu/bits/shm.h (struct shmid_ds): Use __vm_area_struct instead of vm_area_struct.
* Revert "Fix sched_param"Samuel Thibault2018-04-193-57/+5
| | | | | This reverts commit 783c4820303fb6b031d401564f8089ecaf154b62 which accidentaly flew out.
* Fix sched_paramSamuel Thibault2018-04-183-5/+57
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* Update RWF_SUPPORTED for Linux kernel 4.16 [BZ #22947]H.J. Lu2018-04-031-0/+1
| | | | | | | | | | | Add RWF_APPEND to RWF_SUPPORTED to support Linux kernel 4.16. [BZ #22947] * bits/uio-ext.h (RWF_APPEND): New. * sysdeps/unix/sysv/linux/bits/uio-ext.h (RWF_APPEND): Likewise. * manual/llio.texi: Document RWF_APPEND. * misc/tst-preadvwritev2-common.c (RWF_APPEND): New. (RWF_SUPPORTED): Add RWF_APPEND.
* hurd: Fix includability of <hurd/signal.h> in all standardsSamuel Thibault2018-03-051-0/+5
| | | | | | | | | | | | | * bits/sigaction.h: Add include guard. * sysdeps/unix/sysv/linux/alpha/bits/sigaction.h: Likewise. * sysdeps/unix/sysv/linux/bits/sigaction.h: Likewise. * sysdeps/unix/sysv/linux/hppa/bits/sigaction.h: Likewise. * sysdeps/unix/sysv/linux/ia64/bits/sigaction.h: Likewise. * sysdeps/unix/sysv/linux/mips/bits/sigaction.h: Likewise. * sysdeps/unix/sysv/linux/s390/bits/sigaction.h: Likewise. * sysdeps/unix/sysv/linux/sparc/bits/sigaction.h: Likewise. * sysdeps/unix/sysv/linux/tile/bits/sigaction.h: Likewise. * hurd/hurd/signal.h: Include <bits/sigaction.h>.
* Define _DIRENT_MATCHES_DIRENT64 regardlessAdhemerval Zanella2018-03-051-0/+2
| | | | | | | | | | | | | | | | | | | | | | This patch defines _DIRENT_MATCHES_DIRENT64 to either 0 or 1 and adjust its usage from checking its definition to its value. Checked on a build for major Linux abis. * bits/dirent.h (__INO_T_MATCHES_INO64_T): Define regardless whether __INO_T_MATCHES_INO64_T is defined. * sysdeps/unix/sysv/linux/bits/dirent.h: Likewise. * dirent/alphasort.c: Check _DIRENT_MATCHES_DIRENT64 value instead of definition. * dirent/alphasort64.c: Likewise. * dirent/scandir.c: Likewise. * dirent/scandir64-tail.c: Likewise. * dirent/scandir64.c: Likewise. * dirent/scandirat.c: Likewise. * dirent/scandirat64.c: Likewise. * dirent/versionsort.c: Likewise. * dirent/versionsort64.c: Likewise. * include/dirent.h: Likewise.
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