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[PATCH] microblaze: don't use copy_file_range syscall with kernel headers < 4.10
- From: Romain Naour <romain dot naour at gmail dot com>
- To: libc-alpha at sourceware dot org
- Cc: Romain Naour <romain dot naour at gmail dot com>
- Date: Sun, 28 Jan 2018 15:21:22 +0100
- Subject: [PATCH] microblaze: don't use copy_file_range syscall with kernel headers < 4.10
- Authentication-results: sourceware.org; auth=none
copy_file_range syscall was added for microblaze in 4.10.
This patch makes the MicroBlaze kernel-features.h undefine
__ASSUME_COPY_FILE_RANGE for toolchains built with kernel headers < 4.10.
* sysdeps/unix/sysv/linux/microblaze/kernel-features.h
(__ASSUME_COPY_FILE_RANGE) [__LINUX_KERNEL_VERSION < 0x040A00]: Undef.
[1] https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git/commit/?id=7181e5590e5ba898804aef3ee6be7f27606e6f8b
Signed-off-by: Romain Naour <romain.naour@gmail.com>
---
For glibc 2.27
---
ChangeLog | 5 +++++
sysdeps/unix/sysv/linux/microblaze/kernel-features.h | 5 +++++
2 files changed, 10 insertions(+)
diff --git a/ChangeLog b/ChangeLog
index 5eebc649cc..21205f9d43 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2018-01-28 Romain Naour <romain.naour@gmail.com> (tiny change)
+
+ * sysdeps/unix/sysv/linux/microblaze/kernel-features.h
+ (__ASSUME_COPY_FILE_RANGE) [__LINUX_KERNEL_VERSION < 0x040A00]: Undef.
+
2018-01-27 Samuel Thibault <samuel.thibault@ens-lyon.org>
* sysdeps/mach/hurd/xmknodat.c: Include <sys/sysmacros.h>.
diff --git a/sysdeps/unix/sysv/linux/microblaze/kernel-features.h b/sysdeps/unix/sysv/linux/microblaze/kernel-features.h
index e0e6483c91..745f899911 100644
--- a/sysdeps/unix/sysv/linux/microblaze/kernel-features.h
+++ b/sysdeps/unix/sysv/linux/microblaze/kernel-features.h
@@ -52,3 +52,8 @@
#if __LINUX_KERNEL_VERSION < 0x040000
# undef __ASSUME_EXECVEAT
#endif
+
+/* Support for the copy_file_range syscall was added in 4.10. */
+#if __LINUX_KERNEL_VERSION < 0x040A00
+# undef __ASSUME_COPY_FILE_RANGE
+#endif
--
2.14.3