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637461d965
glibc/sysdeps
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Joseph Myers 637461d965 Clean up kernel version conditionals for pre-2.6.32 kernels. 
This patch does some initial cleanup, following the move to 2.6.32
minimum kernel version, by removing __LINUX_KERNEL_VERSION
conditionals that are now always-true or always-false.  In the case of
__ASSUME_ARG_MAX_STACK_BASED, where the conditional used a kernel
version that was itself in a macro, the associated sysconf.c code is
also cleaned up and __ASSUME_ARG_MAX_STACK_BASED removed completely.

Tested x86_64 that disassembly of installed shared libraries is
unchanged by the patch.

	* sysdeps/unix/sysv/linux/kernel-features.h [__s390__]
	(__ASSUME_UTIMES): Do not condition on kernel version.
	(__ASSUME_PSELECT): Define unconditionally.
	(__ASSUME_PPOLL): Likewise.
	(__ASSUME_ATFCTS): Likewise.
	(__ASSUME_SET_ROBUST_LIST): Do not condition on kernel version.
	(__ASSUME_COMPLETE_READV_WRITEV): Define unconditionally.
	(__ASSUME_FUTEX_LOCK_PI): Do not condition on kernel version.
	(__ASSUME_UTIMENSAT): Define unconditionally.
	(__ASSUME_PRIVATE_FUTEX): Likewise.
	(__ASSUME_FALLOCATE): Likewise.
	(__ASSUME_O_CLOEXEC): Likewise.
	(__LINUX_ARG_MAX_STACK_BASED_MIN_KERNEL): Remove.
	(__ASSUME_ARG_MAX_STACK_BASED): Likewise.
	(__ASSUME_ADJ_OFFSET_SS_READ): Define unconditionally.
	(__ASSUME_SOCK_CLOEXEC): Do not condition on kernel version.
	(__ASSUME_IN_NONBLOCK): Likewise.
	(__ASSUME_PIPE2): Likewise.
	(__ASSUME_EVENTFD2): Likewise.
	(__ASSUME_SIGNALFD4): Likewise.
	(__ASSUME_DUP3): Likewise.
	[__x86_64__ || __sparc__] (__ASSUME_ACCEPT4_SYSCALL): Likewise.
	(__ASSUME_FUTEX_CLOCK_REALTIME): Define unconditionally.
	(__ASSUME_AT_RANDOM): Likewise.
	(__ASSUME_PREADV): Likewise.
	(__ASSUME_PWRITEV): Likewise.
	(__ASSUME_REQUEUE_PI): Do not condition on kernel version.
	(__ASSUME_F_GETOWN_EX): Define unconditionally.
	(__ASSUME_XFS_RESTRICTED_CHOWN): Likewise.
	* sysdeps/unix/sysv/linux/sysconf.c (__sysconf)
	[!__ASSUME_ARG_MAX_STACK_BASED]: Remove conditional code.
	* sysdeps/unix/sysv/linux/alpha/kernel-features.h
	(__ASSUME_O_CLOEXEC): Define unconditionally.
	(__ASSUME_PSELECT): Do not undefine conditionally.
	(__ASSUME_PPOLL): Likewise.
	(__ASSUME_ATFCTS): Likewise.
	(__ASSUME_SET_ROBUST_LIST): Likewise.
	(__ASSUME_UTIMENSAT): Likewise.
	(__ASSUME_FDATASYNC): Define unconditionally.
	* sysdeps/unix/sysv/linux/arm/kernel-features.h
	(__ASSUME_SIGFRAME_V2): Likewise.
	)__ASSUME_EVENTFD2): Likewise.
	(__ASSUME_SIGNALFD4): Likewise.
	(__ASSUME_PSELECT): Do not undefine conditionally.
	(__ASSUME_PPOLL): Likewise.
	* sysdeps/unix/sysv/linux/ia64/kernel-features.h
	(__ASSUME_PSELECT): Define unconditionally.
	(__ASSUME_PPOLL): Likewise.
	(__ASSUME_O_CLOEXEC): Likewise.
	(__ASSUME_SOCK_CLOEXEC): Likewise.
	(__ASSUME_IN_NONBLOCK): Likewise.
	(__ASSUME_PIPE2): Likewise.
	(__ASSUME_EVENTFD2): Likewise.
	(__ASSUME_SIGNALFD4): Likewise.
	(__ASSUME_DUP3): Likewise.
	* sysdeps/unix/sysv/linux/m68k/kernel-features.h
	(__ASSUME_O_CLOEXEC): Likewise.
	(__ASSUME_SOCK_CLOEXEC): Likewise.
	(__ASSUME_IN_NONBLOCK): Likewise.
	(__ASSUME_PIPE2): Likewise.
	(__ASSUME_EVENTFD2): Likewise.
	(__ASSUME_SIGNALFD4): Likewise.
	(__ASSUME_DUP3): Likewise.
	* sysdeps/unix/sysv/linux/mips/kernel-features.h
	(__ASSUME_EVENTFD2): Likewise.
	(__ASSUME_SIGNALFD4): Likewise.
	(__ASSUME_ACCEPT4_SYSCALL): Likewise.
2014-05-12 22:48:25 +00:00
..
aarch64 [AArch64] Suppress unnecessary FPSR and FPCR writes. 2014-04-24 07:15:33 +01:00
alpha alpha: Enable unwind tables for backtrace.c 2014-04-16 21:35:29 -07:00
arm Make armv7 strcmp assembly compatible with ARM mode and SFI. 2014-05-09 13:22:00 -07:00
generic More fixes for unsafe compiler optimization 2014-04-30 08:41:42 -05:00
gnu Silence a missing-noreturn warning for _Unwind_Resume. 2014-05-09 10:06:20 -07:00
hppa Relocate hppa from ports to libc. 2014-04-29 04:20:39 -04:00
i386 Include SSE state in i386 fenv_t (bug 16064). 2014-05-09 16:59:56 +00:00
ia64 Compile with -Wundef. 2014-03-14 11:32:51 -07:00
ieee754 [BZ #16823] Fix log1pl returning wrong infinity sign 2014-04-29 15:43:36 +02:00
init_array Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
m68k Compile with -Wundef. 2014-03-14 11:32:51 -07:00
mach Some configure-related decrufting. 2014-05-08 11:27:14 -07:00
microblaze Compile with -Wundef. 2014-03-14 11:32:51 -07:00
mips 2014-05-07 Steve Ellcey <sellcey@mips.com> 2014-05-07 13:10:48 -07:00
posix Fix parsing of getai result from nscd for IPv6-only request 2014-05-07 14:21:27 +02:00
powerpc PowerPC: strncpy/stpncpy optimization for PPC64/POWER7 2014-05-06 09:54:25 -05:00
pthread Use glibc_likely instead __builtin_expect. 2014-02-10 15:07:12 +01:00
s390 S/390: Port of lock elision to System/z 2014-05-09 16:58:46 +02:00
sh Don't include individual test ulps in libm-test-ulps. 2014-03-05 15:02:38 +00:00
sparc Fix v9/64-bit strcmp when string ends in multiple zero bytes. 2014-05-01 12:15:06 -07:00
tile tile: Fix cut-and-paste bug in commit fcccd5128. 2014-04-04 15:03:47 -04:00
unix Clean up kernel version conditionals for pre-2.6.32 kernels. 2014-05-12 22:48:25 +00:00
wordsize-32 Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
wordsize-64 Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
x86 Include SSE state in i386 fenv_t (bug 16064). 2014-05-09 16:59:56 +00:00
x86_64 Fix -Wundef warning for FEATURE_INDEX_1. 2014-05-03 00:25:21 -04:00