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2016-02-24Remove linux/fanotify.h configure test.Joseph Myers
Now we require Linux 3.2 or later kernel headers everywhere, the configure test for <linux/fanotify.h> is obsolete; this patch removes it. Tested for x86_64. * sysdeps/unix/sysv/linux/configure.ac (linux/fanotify.h): Do not test for header. * sysdeps/unix/sysv/linux/configure: Regenerated. * config.h.in (HAVE_LINUX_FANOTIFY_H): Remove #undef. * sysdeps/unix/sysv/linux/tst-fanotify.c [!HAVE_LINUX_FANOTIFY_H]: Remove conditional code. [HAVE_LINUX_FANOTIFY_H]: Make code unconditional.
2016-02-24Require Linux 3.2 except on x86 / x86_64, 3.2 headers everywhere.Joseph Myers
In <https://sourceware.org/ml/libc-alpha/2016-01/msg00885.html> I proposed a minimum Linux kernel version of 3.2 for glibc 2.24, since Linux 2.6.32 has reached EOL. In the discussion in February, some concerns were expressed about compatibility with OpenVZ containers. It's not clear that these are real issues, given OpenVZ backporting kernel features and faking the kernel version for guest software, as discussed in <https://sourceware.org/ml/libc-alpha/2016-02/msg00278.html>. It's also not clear that supporting running GNU/Linux distributions from late 2016 (at the earliest) on a kernel series from 2009 is a sensible expectation. However, as an interim step, this patch increases the requirement everywhere except x86 / x86_64 (since the controversy was only about those architectures); the special caveats and settings can easily be removed later when we're ready to increase the requirements on x86 / x86_64 (and if someone would like to raise the issue on LWN as suggested in the previous discussion, that would be welcome). 3.2 kernel headers are required everywhere by this patch. (x32 already requires 3.4 or later, so is unaffected by this patch.) As usual for such a change, this patch only changes the configure scripts and associated documentation. The intent is to follow up with removal of dead __LINUX_KERNEL_VERSION conditionals. Each __ASSUME_* or other macro that becomes dead can then be removed independently. Tested for x86_64 and x86. * sysdeps/unix/sysv/linux/configure.ac (LIBC_LINUX_VERSION): Define to 3.2.0. (arch_minimum_kernel): Likewise. * sysdeps/unix/sysv/linux/configure: Regenerated. * sysdeps/unix/sysv/linux/i386/configure.ac (arch_minimum_kernel): Define to 2.6.32. * sysdeps/unix/sysv/linux/i386/configure: Regenerated. * sysdeps/unix/sysv/linux/x86_64/64/configure.ac (arch_minimum_kernel): Define to 2.6.32. * sysdeps/unix/sysv/linux/x86_64/64/configure: Regenerated. * README: Document Linux 3.2 requirement. * manual/install.texi (Linux): Document Linux 3.2 headers requirement. * INSTALL: Regenerated.
2014-09-16Remove bitrotten --enable-oldest-abi (bug 6652).Joseph Myers
This patch removes the --enable-oldest-abi configure option, which has long been bitrotten (as reported in bug 6652). The principle of removing this option was agreed in the thread starting at <https://sourceware.org/ml/libc-alpha/2013-07/msg00174.html>. Tested for x86_64 and x86 that the installed shared libraries other than libc.so are unchanged by this patch and that libc.so disassembly and symbol versions are unchanged (debug info changes because of changed line numbers in csu/version.c). [BZ #6652] * Makeconfig (soversions-default-setname): Remove variable. ($(common-objpfx)soversions.i): Don't pass default_setname to soversions.awk. * Makerules ($(common-objpfx)abi-versions.h): Don't pass oldest_abi to abi-versions.awk. * config.h.in (GLIBC_OLDEST_ABI): Remove macro undefine. * config.make.in (oldest-abi): Remove variable. * configure.ac (--enable-oldest-abi): Remove configure option. * configure: Regenerated. * csu/version.c (banner) [GLIBC_OLDEST_ABI]: Remove conditional text. * scripts/abi-versions.awk: Do not handle oldest_abi variable. * scripts/soversions.awk: Do not handle default_setname variable. * sysdeps/mach/hurd/configure.ac: Do not handle oldest_abi variable. * sysdeps/mach/hurd/configure: Regenerated. * sysdeps/unix/sysv/linux/configure.ac: Do not handle oldest_abi variable. * sysdeps/unix/sysv/linux/configure: Regenerated.
2014-07-07NPTL is no longer an add-on!Roland McGrath
2014-07-03Robustify Linux kernel headers configure checksRoland McGrath
2014-06-24Move architecture cases out of sysdeps/unix/sysv/linux/configure.ac.Joseph Myers
Continuing the process of making non-ex-ports architectures follow the preferred sysdeps practices followed by ex-ports architectures - that is, putting things in architecture-specific sysdeps files rather than having architecture-specific cases in architecture-independent files - this patch moves architecture cases out of sysdeps/unix/sysv/linux/configure.ac into (new or existing) configure fragments for each architecture. (In the case of the arch_minimum_kernel setting for x32, sysdeps/unix/sysv/linux/x86_64/x32/configure already has such a setting so the setting in sysdeps/unix/sysv/linux/configure.ac was a duplicate that could just be removed - though I haven't tested for x32.) Tested for x86_64 and x86 that the patch causes no changes to the installed shared libraries or ldd (or any part of the installation except for the parts that always change because the files contain timestamps - nscd and static libraries). * sysdeps/unix/sysv/linux/configure.ac: Remove cases for individual architectures. * sysdeps/unix/sysv/linux/configure: Regenerated. * sysdeps/unix/sysv/linux/i386/configure.ac: New file. * sysdeps/unix/sysv/linux/i386/configure: New generated file. * sysdeps/unix/sysv/linux/powerpc/configure.ac (ldd_rewrite_script): Define variable. * sysdeps/unix/sysv/linux/powerpc/configure: Regenerated. * sysdeps/unix/sysv/linux/powerpc/powerpc32/configure.ac: New file. * sysdeps/unix/sysv/linux/powerpc/powerpc32/configure: New generated file. * sysdeps/unix/sysv/linux/s390/configure.ac: New file. * sysdeps/unix/sysv/linux/s390/configure: New generated file. * sysdeps/unix/sysv/linux/sh/configure.ac: New file. * sysdeps/unix/sysv/linux/sh/configure: New generated file. * sysdeps/unix/sysv/linux/sparc/configure.ac: New file. * sysdeps/unix/sysv/linux/sparc/configure: New generated file. * sysdeps/unix/sysv/linux/x86_64/configure.ac: New file. * sysdeps/unix/sysv/linux/x86_64/configure: New generated file.
2014-05-08Some configure-related decrufting.Roland McGrath
2014-04-30Increase minimum Linux kernel version to 2.6.32.Joseph Myers
This patch increases the minimum Linux kernel version for glibc to 2.6.32, as discussed in the thread starting at <https://sourceware.org/ml/libc-alpha/2014-01/msg00511.html>. This patch just does the minimal change to arch_minimum_kernel settings (and LIBC_LINUX_VERSION, which determines the minimum kernel headers version, as it doesn't make sense for that to be older than the minimum kernel that can be used at runtime). Followups would be expected to do, roughly and not necessarily precisely in this order: * Remove __LINUX_KERNEL_VERSION checks in kernel-features.h files where those checks are always true / always false for kernels 2.6.32 and above. * Otherwise simplify/improve conditionals in those files (for example, where defining once in the main file then undefining in architecture-specific files makes things clearer than having lots of separate definitions of the same macro), possibly fixing in the process cases where a macro should optimally have been defined for a given architecture but wasn't. (In the review in preparation for this version increase I checked what the right conditions should be for all macros in the main kernel-features.h whose definitions there would have been affected by the increase - but I only fixed that subset of the issues found where --enable-kernel=2.6.32 would have caused a kernel feature to be wrongly assumed to be present, not any cases where a feature is not assumed but could be assumed.) * Remove conditionals on __ASSUME_* where they can now be taken to be always-true, and the definitions when the macros are only used in Linux-specific files. * Split more architectures out of the main kernel-features.h (like ex-ports architectures), once various of the architecture conditionals there have been eliminated so the new architecture-specific files are no larger than actually necessary. Tested x86_64. 2014-03-27 Joseph Myers <joseph@codesourcery.com> [BZ #9894] * sysdeps/unix/sysv/linux/configure.ac (LIBC_LINUX_VERSION): Change to 2.6.32. (arch_minimum_kernel): Change all 2.6.16 settings to 2.6.32. * sysdeps/unix/sysv/linux/configure: Regenerated. * sysdeps/unix/sysv/linux/microblaze/configure.ac: Remove file. * sysdeps/unix/sysv/linux/microblaze/configure: Likewise. * sysdeps/unix/sysv/linux/tile/configure.ac: Likewise. * sysdeps/unix/sysv/linux/tile/configure: Likewise. * README: Update reference to required Linux kernel version. * manual/install.texi (Linux): Update reference to required Linux kernel headers version. * INSTALL: Regenerated.
2014-01-04tst-fanotify: switch to AC_DEFINEMike Frysinger
Reported-by: Joseph S. Myers <joseph@codesourcery.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2013-12-31tst-fanotify: check for linux/fanotify.h existenceMike Frysinger
We support older kernels that lack this header, so check for it before we try to use it. Reported-by: Adhemerval Zanella <azanella@linux.vnet.ibm.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2013-11-13Set arch_minimum_kernel to 3.4.0 for x32H.J. Lu
x32 ABI support was added in Linux kernel 3.4.0.
2013-10-30rename configure.in to configure.acMike Frysinger
Autoconf has been deprecating configure.in for quite a long time. Rename all our configure.in and preconfigure.in files to .ac. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2013-10-04e500 port: adjust sysdeps/unix/sysv/linux/configure.in case.Joseph Myers
2012-10-09Add missing magic to GLIBC_PROVIDES.Roland McGrath
2012-08-07Remove pre-2.6.16 Linux kernel support.Joseph Myers
2012-08-03Remove pre-2.6.0 Linux kernel support (bug 13717).Joseph Myers
2012-07-25Remove pre-2.4.21 Linux kernel support.Joseph Myers
2012-07-12Remove pre-2.4.1 Linux kernel support.Joseph Myers
2012-05-25Remove pre-2.4 Linux kernel support.Joseph Myers
2012-05-14Improve consistency of --enable-kernel and default builds.Joseph Myers
2012-05-14Remove pre-2.2 Linux kernel support.Joseph Myers
2012-05-10Hurd: Support --prefix=/usr special-casing for all GNU systems.Thomas Schwinge
2012-03-21Check x86_64* instead of x86_64H.J. Lu
2012-02-27Require Linux kernel headers from "make headers_install", >= 2.6.19.1.Joseph Myers
2012-01-07Update ABI informationUlrich Drepper
2012-01-07Linux configure cleanupUlrich Drepper
2012-01-07More ia64 removal changesUlrich Drepper
2011-09-11Prepend $(..) to $(ldd-rewrite-script) if non-absoluteAndreas Schwab
2011-07-06Rebuild configure scriptsUlrich Drepper
2011-02-15Remove use of ranlib.Ulrich Drepper
2009-09-15configure tweaks, support $libc_add_on_config_subdirsRoland McGrath
2009-07-24Don't automatically use /lib/modules/* headers.Ulrich Drepper
Ever since the /usr/include/linux headers got cleaned up this isn't necessary. Meanwhile everybody should have these cleanups.
2008-04-12* sysdeps/powerpc/fpu/fenv_libc.h: Add libm_hidden_proto forUlrich Drepper
__fe_nomask_env. * sysdeps/powerpc/fpu/fe_nomask.c: Add libm_hidden_def. * sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/fe_nomask.c: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/fpu/fe_nomask.c: Likewise. * sysdeps/powerpc/bits/fenv.h: Make safe for C++. * sysdeps/unix/sysv/linux/powerpc/bits/mathinline.h: New file. * sysdeps/powerpc/fpu/fegetexcept.c (__fegetexcept): Rename function from fegetexcept and make old name weak alias. * include/fenv.h: Declare __fegetexcept. * sysdeps/powerpc/fpu/fedisblxcpt.c: Use __fegetexcept instead of fegetexcept. * sysdeps/powerpc/fpu/feenablxcpt.c: Likewise. * sysdeps/powerpc/fpu/fraiseexcpt.c (__feraiseexcept): Avoid call to fetestexcept. * sysdeps/ieee754/ldbl-128ibm/s_log1pl.c (__log1pl): Use __frexpl instead of frexpl to avoid local PLT. * math/s_significandl.c (__significandl): Use __ilogbl instead of ilogbl to avoid local PLT. * sysdeps/ieee754/ldbl-128ibm/s_expm1l.c (__expm1l): Use __ldexpl instead of ldexpl to avoid local PLT. * sysdeps/ieee754/ldbl-128ibm/e_expl.c (__ieee754_expl): Use __roundl not roundl to avoid local PLT. * sysdeps/ieee754/ldbl-128/e_j0l.c: Use function names which avoid local PLTs. Use __sincosl instead of separate sinl and cosl calls. * sysdeps/ieee754/ldbl-128/e_j1l.c: Likewise.
2006-10-28* configure.in: Require assembler support for visibility, compilerUlrich Drepper
support for visibility and aliases, linker support for various -z options. * Makeconfig: Remove conditional code which now is unnecessary. * config.h.in: Likewise. * config.make.in: Likewise. * dlfcn/Makefile: Likewise. * elf/Makefile: Likewise. * elf/dl-load.c: Likewise. * elf/rtld.c: Likewise. * include/libc-symbols.h: Likewise. * include/stdio.h: Likewise. * io/Makefile: Likewise. * io/fstat.c: Likewise. * io/fstat64.c: Likewise. * io/fstatat.c: Likewise. * io/fstatat64.c: Likewise. * io/lstat.c: Likewise. * io/lstat64.c: Likewise. * io/mknod.c: Likewise. * io/mknodat.c: Likewise. * io/stat.c: Likewise. * io/stat64.c: Likewise. * libio/stdio.c: Likewise. * nscd/Makefile: Likewise. * stdlib/Makefile: Likewise. * stdlib/atexit.c: Likewise. * sysdeps/generic/ldsodefs.h: Likewise. * sysdeps/i386/dl-machine.h: Likewise. * sysdeps/i386/sysdep.h: Likewise. * sysdeps/i386/i686/memcmp.S: Likewise. * sysdeps/powerpc/powerpc32/sysdep.h: Likewise. * sysdeps/unix/sysv/linux/i386/sigaction.c: Likewise. * sysdeps/unix/sysv/linux/x86_64/sigaction.c: Likewise.
2006-10-28* sysdeps/x86_64/tls.h: Likewise.Ulrich Drepper
2006-10-27 Jakub Jelinek <jakub@redhat.com>
2006-03-05* sysdeps/mach/hurd/i386/tls.h (_hurd_tls_init): Make sure high bitsRoland McGrath
of SEL are clear after copying %gs to low bits. (_hurd_tls_fork): Likewise.
2005-07-03* manual/install.texi (Installation): Don't mention linuxthreads.Roland McGrath
(Configuring and compiling): Don't use linuxthreads as example. * sysdeps/unix/sysv/linux/configure.in: Check for nptl add-on only, not linuxthreads. * sysdeps/unix/sysv/linux/configure: Regenerated. * resolv/Depend: Add nptl. * rt/Depend: Likewise. * linuxthreads, linuxthreads_db: Directories removed (preserved in ports repository).
2005-04-14Add sparc64 TLS and NPTL support.Ulrich Drepper
* elf/tls-macros.h: Add Sparc64 defines. * sysdeps/sparc/sparc64/dl-machine.h (sparc64_fixup_plt): Mark as always_inline. (elf_machine_fixup_plt): Likewise. (elf_machine_rela): Handle TLS relocations. (elf_machine_type_cleaa): Likewise. * sysdeps/unix/sysv/linux/sparc/sparc64/sysdep.h (SYSCALL_ERROR_HANDLER_ENTRY): Use sethi/or for GOT reloc. It does not always fit in R_SPARC_GOT13 when building -fPIC. Also, add TLS handling. * sysdeps/unix/sysv/linux/configure.in (arch_minimum_kernel): Increase it to 2.4.21 for sparc64. * sysdeps/unix/sysv/linux/sparc/sparc32/clone.S: NULL terminate backtrace by zero'ing out %fp. Store away flags, func_ptr, and func_arg in global registers not local registers. * sysdeps/unix/sysv/linux/sparc/sparc64/clone.S: Handle PTID, TLS, and CTID arguments properly. Add RESET_PID handling. * sysdeps/unix/sysv/linux/sparc/sparc64/pause.c: Rework so that we do not invoke __sigprocmask(). We can always assume rt signals are present on sparc64, so just do an inline syscall. 2005-04-13 Jakub Jelinek <jakub@redhat.com> * sysdeps/sparc/sparc64/dl-machine.h: Add dl_machine_h multiple inclusion guard for the first half of the header. (elf_machine_type_class, ELF_MACHINE_JMP_SLOT, ELF_MACHINE_NO_REL, ELF_MACHINE_PLTREL_OVERLAP, elf_machine_runtime_setup, elf_machine_relplt, DL_STACK_END, RTLD_START): Move into the #ifndef dl_machine_h guarded part of the header.
2004-12-22(CFLAGS-tst-align.c): Add -mpreferred-stack-boundary=4.Ulrich Drepper
2007-07-122.5-18.1Jakub Jelinek
2004-07-06Update.Ulrich Drepper
2004-07-05 Ulrich Drepper <drepper@redhat.com> * elf/dl-init.c: Don't define and use _dl_starting_up if HAVE_INLINED_SYSCALLS is defined and the variable is not used. * elf/dl-support.c: Likewise. * elf/rtld.c: Likewise. * elf/dl-misc.c (_dl_debug_vdprintf): Use writev syscall directly if HAVE_INLINED_SYSCALLS is defined. * sysdeps/powerpc/powerpc64/dl-machine.h: Don't rest _dl_starting_up here. * sysdeps/powerpc/powerpc32/dl-start.S: Likewise. * sysdeps/unix/sysv/linux/configure.in: Define HAVE_INLINED_SYSCALLS. * config.h.in: Add entry for HAVE_INLINED_SYSCALLS. * sysdeps/posix/profil.c: If compiled for ld.so, omit code which is needed to stop profiling. * elf/dl-open.c (dl_open_worker): If a newly opened object is to be profile make sure it cannot be unloaded. * sysdeps/unix/sysv/linux/dl-origin.c: Inline readlink syscall. * sysdeps/unix/sysv/linux/fcntl.c: If compiled without cancellation support, make sure the helper function is inlined. * sysdeps/unix/sysv/linux/pread.c: Likewise. * sysdeps/unix/sysv/linux/pwrite.c: Likewise. * sysdeps/unix/sysv/linux/i386/fcntl.c: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/fcntl.c: Likewise.
2004-07-022004-07-01 Roland McGrath <roland@redhat.com>Roland McGrath
* sysdeps/unix/sysv/linux/configure.in: If arch_minimum_kernel was already set, don't set it or libc_cv_gcc_unwind_find_fde. * sysdeps/unix/sysv/linux/configure: Regenerated.
2003-03-23* sysdeps/unix/sysv/linux/configure.in: Update mips64 patterns. * ↵Alexandre Oliva
sysdeps/unix/sysv/linux/configure: Rebuilt. 2003-03-22 Alexandre Oliva <aoliva@redhat.com> * sysdeps/unix/sysv/linux/configure.in: Update mips64 patterns. * sysdeps/unix/sysv/linux/configure: Rebuilt.
2003-03-17* sysdeps/unix/sysv/linux/configure.in (libc_cv_slibdir): Use lib64 for ↵Alexandre Oliva
mips64/n64 and lib32 for mips64/n32. (ldd_rewrite_script): Needed for all mips64 configurations. * sysdeps/unix/sysv/linux/configure: Rebuilt. * sysdeps/unix/sysv/linux/mips/mips64/ldd-rewrite.sed: New file. * sysdeps/unix/sysv/linux/mips/mips64/Dist: New file. * sysdeps/unix/sysv/linux/configure.in (libc_cv_slibdir): Use lib64 for mips64/n64 and lib32 for mips64/n32. (ldd_rewrite_script): Needed for all mips64 configurations. * sysdeps/unix/sysv/linux/configure: Rebuilt. * sysdeps/unix/sysv/linux/mips/mips64/ldd-rewrite.sed: New file. * sysdeps/unix/sysv/linux/mips/mips64/Dist: New file.
2003-02-26Revert unintentional commits.Roland McGrath
2003-02-25linuxthreads/ChangeLogRoland McGrath
2003-02-25 Roland McGrath <roland@redhat.com> * sysdeps/powerpc/powerpc64/dl-machine.h: Support new TLS relocs. * sysdeps/powerpc/powerpc64/dl-tls.h: New file.
2003-02-03Update.Ulrich Drepper
2003-02-03 Ulrich Drepper <drepper@redhat.com> * allocatestack.c (allocate_stack): Implement coloring of the allocated stack memory. Rename pagesize to pagesize_m1. It's the size minus one. Adjust users.
2003-01-21Update.Ulrich Drepper
2002-11-19* sysdeps/hppa/fpu/libm-test-ulps: New file (generated).Roland McGrath
* sysdeps/hppa/Makefile (CFLAGS-rtld.c): New variable. Set -mdisable-fpregs for this file. 2002-11-11 Carlos O'Donell <carlos@baldric.uwo.ca> * sysdeps/unix/sysv/linux/configure.in: Make 2.4.19 minimum linux kernel for hppa, and add unwind symbols from gcc-3.0 era for backwards compatibility. * sysdeps/unix/sysv/linux/configure: Regenerate. * sysdeps/unix/sysv/linux/hppa/sys/ucontext.h: Define mcontext_t as a sigcontext. * dlfcn/dlerror.c (fini): New function, __attribute__ ((destructor)). Free memory in `last_result' if it was used. * resolv/nss_dns/dns-network.c (getanswer_r): In BYNAME case, search all aliases for one that matches the "<dotted-quad>.IN-ADDR.ARPA" form. Do the parsing inline instead of copying strings and calling inet_network, and properly skip all alias names not matching the form.
2002-11-15Regenerated: autoconf sysdeps/unix/sysv/linux/configure.inUlrich Drepper
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