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2.5-18.1
This commit is contained in:
Jakub Jelinek
@ -1,6 +1,6 @@
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/* Set flags signalling availability of kernel features based on given
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kernel version number.
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Copyright (C) 1999-2003, 2004 Free Software Foundation, Inc.
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Copyright (C) 1999-2003, 2004, 2005, 2006 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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@ -21,10 +21,6 @@
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/* This file must not contain any C code. At least it must be protected
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to allow using the file also in assembler files. */
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#if defined __mips__
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# include <sgidefs.h>
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#endif
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#ifndef __LINUX_KERNEL_VERSION
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/* We assume the worst; all kernels should be supported. */
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# define __LINUX_KERNEL_VERSION 0
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@ -79,6 +75,22 @@
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# define __ASSUME_SIOCGIFNAME 1
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#endif
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/* MSG_NOSIGNAL was at least available with Linux 2.2.0. */
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#if __LINUX_KERNEL_VERSION >= 131584
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# define __ASSUME_MSG_NOSIGNAL 1
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#endif
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/* The sendfile syscall was introduced in 2.2.0. */
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#if __LINUX_KERNEL_VERSION >= 131584
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# define __ASSUME_SENDFILE 1
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#endif
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/* Only very old kernels had no real symlinks for terminal descriptors
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in /proc/self/fd. */
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#if __LINUX_KERNEL_VERSION >= 131584
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# define __ASSUME_PROC_SELF_FD_SYMLINK 1
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#endif
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/* On x86 another `getrlimit' syscall was added in 2.3.25. */
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#if __LINUX_KERNEL_VERSION >= 131865 && defined __i386__
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# define __ASSUME_NEW_GETRLIMIT_SYSCALL 1
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@ -99,9 +111,10 @@
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# define __ASSUME_STAT64_SYSCALL 1
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#endif
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/* On sparc and ARM the truncate64/ftruncate64/mmap2/stat64/lstat64/fstat64
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/* On sparc the truncate64/ftruncate64/mmap2/stat64/lstat64/fstat64
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syscalls were introduced in 2.3.35. */
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#if __LINUX_KERNEL_VERSION >= 131875 && (defined __sparc__ || defined __arm__)
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#if __LINUX_KERNEL_VERSION >= 131875 \
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&& (defined __sparc__ && !defined __arch64__)
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# define __ASSUME_TRUNCATE64_SYSCALL 1
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# define __ASSUME_MMAP2_SYSCALL 1
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# define __ASSUME_STAT64_SYSCALL 1
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@ -122,7 +135,7 @@
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/* Linux 2.3.39 introduced 32bit UID/GIDs. Some platforms had 32
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bit type all along. */
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#if __LINUX_KERNEL_VERSION >= 131879 || defined __powerpc__ || defined __mips__
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#if __LINUX_KERNEL_VERSION >= 131879 || defined __powerpc__
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# define __ASSUME_32BITUIDS 1
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#endif
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@ -140,11 +153,6 @@
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# define __ASSUME_IPC64 1
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#endif
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/* MIPS platforms had IPC64 all along. */
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#if defined __mips__
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# define __ASSUME_IPC64 1
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#endif
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/* We can use the LDTs for threading with Linux 2.3.99 and newer. */
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#if __LINUX_KERNEL_VERSION >= 131939
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# define __ASSUME_LDT_WORKS 1
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@ -189,7 +197,7 @@
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don't know when it got introduced). But PowerPC64 does not support
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separate FCNTL64 call, FCNTL is already 64-bit */
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#if __LINUX_KERNEL_VERSION >= 132100 \
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&& (defined __arm__ || defined __powerpc__ || defined __sh__) \
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&& (defined __powerpc__ || defined __sh__) \
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&& !defined __powerpc64__
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# define __ASSUME_FCNTL64 1
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#endif
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@ -258,65 +266,37 @@
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#endif
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/* The vfork syscall on x86 and arm was definitely available in 2.4. */
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#if __LINUX_KERNEL_VERSION >= 132097 && (defined __i386__ || defined __arm__)
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#if __LINUX_KERNEL_VERSION >= 132097 && defined __i386__
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# define __ASSUME_VFORK_SYSCALL 1
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#endif
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/* There are an infinite number of PA-RISC kernel versions numbered
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2.4.0. But they've not really been released as such. We require
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and expect the final version here. */
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#ifdef __hppa__
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# define __ASSUME_32BITUIDS 1
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# define __ASSUME_TRUNCATE64_SYSCALL 1
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# define __ASSUME_MMAP2_SYSCALL 1
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# define __ASSUME_STAT64_SYSCALL 1
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# define __ASSUME_IPC64 1
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# define __ASSUME_ST_INO_64_BIT 1
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# define __ASSUME_FCNTL64 1
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# define __ASSUME_GETDENTS64_SYSCALL 1
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#endif
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/* Alpha switched to a 64-bit timeval sometime before 2.2.0. */
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#if __LINUX_KERNEL_VERSION >= 131584 && defined __alpha__
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# define __ASSUME_TIMEVAL64 1
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#endif
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#if defined __mips__ && _MIPS_SIM == _ABIN32
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# define __ASSUME_FCNTL64 1
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#endif
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/* The late 2.5 kernels saw a lot of new CLONE_* flags. Summarize
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their availability with one define. The changes were made first
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for i386 and the have to be done separately for the other archs.
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For i386 we pick 2.5.50 as the first version with support. */
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#if __LINUX_KERNEL_VERSION >= 132402 && defined __i386__
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For i386 we pick 2.5.50 as the first version with support.
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For ia64, s390*, PPC, x86-64, and SH we pick 2.5.64 as the first
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version with support. */
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#if ((__LINUX_KERNEL_VERSION >= 132402 && defined __i386__) \
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|| (__LINUX_KERNEL_VERSION >= 132416 \
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&& (defined __ia64__ || defined __s390__ \
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|| defined __powerpc__ || defined __x86_64__ || defined __sh__)))
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# define __ASSUME_CLONE_THREAD_FLAGS 1
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#endif
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/* These features were surely available with 2.4.12. */
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#if __LINUX_KERNEL_VERSION >= 132108 && defined __mc68000__
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# define __ASSUME_MMAP2_SYSCALL 1
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# define __ASSUME_TRUNCATE64_SYSCALL 1
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# define __ASSUME_STAT64_SYSCALL 1
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# define __ASSUME_FCNTL64 1
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# define __ASSUME_VFORK_SYSCALL 1
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#endif
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/* Beginning with 2.5.63 support for realtime and monotonic clocks and
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timers based on them is available. */
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#if __LINUX_KERNEL_VERSION >= 132415
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# define __ASSUME_POSIX_TIMERS 1
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#endif
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/* The late 2.5 kernels saw a lot of new CLONE_* flags. Summarize
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their availability with one define. The changes were made first
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for i386 and the have to be done separately for the other archs.
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For ia64, s390*, PPC, x86-64 we pick 2.5.64 as the first version
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with support. */
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#if __LINUX_KERNEL_VERSION >= 132416 \
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&& (defined __ia64__ || defined __s390__ || defined __powerpc__ \
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|| defined __x86_64__ || defined __sh__)
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# define __ASSUME_CLONE_THREAD_FLAGS 1
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/* Beginning with 2.6.12 the clock and timer supports CPU clocks. */
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#if __LINUX_KERNEL_VERSION >= 0x2060c
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# define __ASSUME_POSIX_CPU_TIMERS 1
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#endif
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/* With kernel 2.4.17 we always have netlink support. */
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@ -349,22 +329,24 @@
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/* The tgkill syscall was instroduced for i386 in 2.5.75. For Alpha
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it was introduced in 2.6.0-test1 which unfortunately cannot be
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distinguished from 2.6.0. On x86-64 it was introduced in
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2.6.0-test3. */
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distinguished from 2.6.0. On x86-64, ppc, and ppc64 it was
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introduced in 2.6.0-test3. */
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#if (__LINUX_KERNEL_VERSION >= 132427 && defined __i386__) \
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|| (__LINUX_KERNEL_VERSION >= 132609 && defined __alpha__) \
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|| (__LINUX_KERNEL_VERSION >= 132609 && defined __x86_64__) \
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|| (__LINUX_KERNEL_VERSION >= 132609 && defined __powerpc__) \
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|| (__LINUX_KERNEL_VERSION >= 132609 && defined __sh__)
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# define __ASSUME_TGKILL 1
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#endif
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/* The utimes syscall has been available for some architectures
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forever. For x86 it was introduced after 2.5.75, for x86-64 in
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2.6.0-test3. */
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#if defined __alpha__ || defined __ia64__ || defined __hppa__ \
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forever. For x86 it was introduced after 2.5.75, for x86-64,
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ppc, and ppc64 it was introduced in 2.6.0-test3. */
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#if defined __alpha__ || defined __ia64__ \
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|| defined __sparc__ \
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|| (__LINUX_KERNEL_VERSION > 132427 && defined __i386__) \
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|| (__LINUX_KERNEL_VERSION > 132609 && defined __x86_64__) \
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|| (__LINUX_KERNEL_VERSION >= 132609 && defined __powerpc__) \
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|| (__LINUX_KERNEL_VERSION >= 132609 && defined __sh__)
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# define __ASSUME_UTIMES 1
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#endif
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@ -378,8 +360,11 @@
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#endif
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/* The fixed version of the posix_fadvise64 syscall appeared in
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2.6.0-test3. At least for x86. */
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#if __LINUX_KERNEL_VERSION >= 132609 && defined __i386__
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2.6.0-test3. At least for x86. Powerpc support appeared in
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2.6.2, but for 32-bit userspace only. */
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#if (__LINUX_KERNEL_VERSION >= 132609 && defined __i386__) \
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|| (__LINUX_KERNEL_VERSION >= 132610 && defined __powerpc__ \
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&& !defined __powerpc64__)
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# define __ASSUME_FADVISE64_64_SYSCALL 1
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#endif
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@ -403,8 +388,10 @@
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#endif
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/* Starting with version 2.6.4-rc1 the getdents syscall returns d_type
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information as well. */
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#if __LINUX_KERNEL_VERSION >= 132612
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information as well and in between 2.6.5 and 2.6.8 most compat wrappers
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were fixed too. Except s390{,x} which was fixed in 2.6.11. */
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#if (__LINUX_KERNEL_VERSION >= 0x020608 && !defined __s390__) \
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|| (__LINUX_KERNEL_VERSION >= 0x02060b && defined __s390__)
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# define __ASSUME_GETDENTS32_D_TYPE 1
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#endif
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@ -414,8 +401,12 @@
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# define __ASSUME_BRK_PAGE_ROUNDED 1
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#endif
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/* Starting with version 2.6.9, the waitid system call is available. */
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#if __LINUX_KERNEL_VERSION >= 0x020609
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/* Starting with version 2.6.9, the waitid system call is available.
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Except for powerpc{,64} and s390{,x}, where it is available in 2.6.12. */
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#if (__LINUX_KERNEL_VERSION >= 0x020609 \
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&& !defined __powerpc__ && !defined __s390__) \
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|| (__LINUX_KERNEL_VERSION >= 0x02060c \
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&& (defined __powerpc__ || defined __s390__))
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# define __ASSUME_WAITID_SYSCALL 1
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#endif
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@ -423,3 +414,47 @@
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#if __LINUX_KERNEL_VERSION >= 0x020609 && defined __alpha__
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#define __ASSUME_IEEE_RAISE_EXCEPTION 1
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#endif
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/* On sparc64 stat64/lstat64/fstat64 syscalls were introduced in 2.6.12. */
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#if __LINUX_KERNEL_VERSION >= 0x02060c && defined __sparc__ \
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&& defined __arch64__
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# define __ASSUME_STAT64_SYSCALL 1
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#endif
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/* Early kernel used "shm" as the filesystem name for the filesystem used
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for shm_open etc. Later it is "tmpfs". 2.4.20 is a safe bet for the
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cutover. */
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#if __LINUX_KERNEL_VERSION >= 0x02041a
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# define __ASSUME_TMPFS_NAME 1
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#endif
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/* pselect was introduced just after 2.6.16-rc1. Due to the way the
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kernel versions are advertised we can only rely on 2.6.17 to have
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the code. */
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#if __LINUX_KERNEL_VERSION >= 0x020611 && !defined __x86_64__
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# define __ASSUME_PSELECT 1
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#endif
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/* ppoll was introduced just after 2.6.16-rc1. Due to the way the
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kernel versions are advertised we can only rely on 2.6.17 to have
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the code. */
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#if __LINUX_KERNEL_VERSION >= 0x020611 && !defined __x86_64__
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# define __ASSUME_PPOLL 1
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#endif
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/* The *at syscalls were introduced just after 2.6.16-rc1. Due to the way the
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kernel versions are advertised we can only rely on 2.6.17 to have
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the code. */
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#if __LINUX_KERNEL_VERSION >= 0x020611
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# define __ASSUME_ATFCTS 1
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#endif
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/* Support for inter-process robust mutexes was added in 2.6.17. */
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#if __LINUX_KERNEL_VERSION >= 0x020611
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# define __ASSUME_SET_ROBUST_LIST 1
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#endif
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/* Support for PI futexes was added in 2.6.18. */
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#if __LINUX_KERNEL_VERSION >= 0x020612
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# define __ASSUME_FUTEX_LOCK_PI 1
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#endif
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