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Correct SH kernel-features.h undefines (bug 23862). 

The SH kernel-features.h undefines __ASSUME_RENAMEAT2 for kernel
versions before 4.8, but fails to undefine __ASSUME_EXECVEAT,
__ASSUME_MLOCK2 and __ASSUME_COPY_FILE_RANGE, although all those
syscalls (and several others) were added for SH in the same Linux
kernel commit (first released in 4.8).  This patch adds the proper
undefines of those macros.

Tested with build-many-glibcs.py for its SH configurations.

	[BZ #23862]
	* sysdeps/unix/sysv/linux/sh/kernel-features.h
	[__LINUX_KERNEL_VERSION < 0x040800] (__ASSUME_EXECVEAT): Undefine.
	[__LINUX_KERNEL_VERSION < 0x040800] (__ASSUME_MLOCK2): Likewise.
	[__LINUX_KERNEL_VERSION < 0x040800] (__ASSUME_COPY_FILE_RANGE):
	Likewise.
This commit is contained in:
Joseph Myers 2018-11-06 17:22:50 +00:00
parent 4a938cb273
commit e143ceba56
2 changed files with 13 additions and 1 deletions
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9
ChangeLog
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@ -1,3 +1,12 @@
2018-11-06 Joseph Myers <joseph@codesourcery.com>
[BZ #23862]
* sysdeps/unix/sysv/linux/sh/kernel-features.h
[__LINUX_KERNEL_VERSION < 0x040800] (__ASSUME_EXECVEAT): Undefine.
[__LINUX_KERNEL_VERSION < 0x040800] (__ASSUME_MLOCK2): Likewise.
[__LINUX_KERNEL_VERSION < 0x040800] (__ASSUME_COPY_FILE_RANGE):
Likewise.
2018-11-06 Florian Weimer <fweimer@redhat.com>
[BZ #17405]

5
sysdeps/unix/sysv/linux/sh/kernel-features.h
View File

@ -51,9 +51,12 @@
/* sh only supports ipc syscall. */
#undef __ASSUME_DIRECT_SYSVIPC_SYSCALLS
/* Support for the renameat2 syscall was added in 4.8. */
/* Support for several syscalls was added in 4.8. */
#if __LINUX_KERNEL_VERSION < 0x040800
# undef __ASSUME_RENAMEAT2
# undef __ASSUME_EXECVEAT
# undef __ASSUME_MLOCK2
# undef __ASSUME_COPY_FILE_RANGE
#endif
/* sh does not support the statx system call. */