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[PATCH 1/6] Split x86_64 out of main Linux kernel-features.h.

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This patch splits x86_64 out of the main Linux kernel-features.h.

Tested x86_64 that there are no changes to disassembly of installed
shared libraries.

	* sysdeps/unix/sysv/linux/x86_64/kernel-features.h: New file.
	* sysdeps/unix/sysv/linux/kernel-features.h [__x86_64__]
	(__ASSUME_ACCEPT4_SYSCALL): Do not define.
	[__LINUX_KERNEL_VERSION >= 0x020621 && __x86_64__]
	(__ASSUME_RECVMMSG_SYSCALL): Likewise.
	[__LINUX_KERNEL_VERSION >= 0x030000 && __x86_64__]
	(__ASSUME_SENDMMSG_SYSCALL): Likewise.
	[__x86_64__ && __LINUX_KERNEL_VERSION >= 0x030100]
	(__ASSUME_GETCPU_SYSCALL): Likewise.
This commit is contained in:
Joseph Myers
2014-07-17 17:49:45 +00:00
parent d95ffd4cfd
commit 5be44ea623
3 changed files with 52 additions and 9 deletions
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13
sysdeps/unix/sysv/linux/kernel-features.h
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@ -137,7 +137,7 @@
/* The accept4 syscall was added for x86_64 and SPARC in 2.6.28, and
for PowerPC and SH in 2.6.37. */
#if (defined __x86_64__ || defined __sparc__) \
#if defined __sparc__ \
|| (__LINUX_KERNEL_VERSION >= 0x020625 \
&& (defined __powerpc__ || defined __sh__))
# define __ASSUME_ACCEPT4_SYSCALL 1
@ -173,7 +173,7 @@
/* The recvmmsg syscall was added for i386, x86_64 and SPARC in
2.6.33, and for PowerPC and SH in 2.6.37. */
#if (__LINUX_KERNEL_VERSION >= 0x020621 \
&& (defined __i386__ || defined __x86_64__ || defined __sparc__)) \
&& (defined __i386__ || defined __sparc__)) \
|| (__LINUX_KERNEL_VERSION >= 0x020625 \
&& (defined __powerpc__ || defined __sh__))
# define __ASSUME_RECVMMSG_SYSCALL 1
@ -210,8 +210,8 @@
/* The sendmmsg syscall was added for i386, x86_64, PowerPC, SH and
SPARC in 3.0. */
#if __LINUX_KERNEL_VERSION >= 0x030000 \
&& (defined __i386__ || defined __x86_64__ || defined __powerpc__ \
#if __LINUX_KERNEL_VERSION >= 0x030000 \
&& (defined __i386__ || defined __powerpc__ \
|| defined __sh__ || defined __sparc__)
# define __ASSUME_SENDMMSG_SYSCALL 1
#endif
@ -223,8 +223,3 @@
#if defined __ASSUME_SENDMMSG_SOCKETCALL || defined __ASSUME_SENDMMSG_SYSCALL
# define __ASSUME_SENDMMSG 1
#endif
/* getcpu is a syscall for x86-64 since 3.1. */
#if defined __x86_64__ && __LINUX_KERNEL_VERSION >= 0x030100
# define __ASSUME_GETCPU_SYSCALL 1
#endif