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authorJoseph Myers <joseph@codesourcery.com>2017-01-05 17:35:53 +0000
committerJoseph Myers <joseph@codesourcery.com>2017-01-05 17:35:53 +0000
commit30733525c6867c160261db1afade6326000f9f75 (patch)
tree9f3b0050bb3933319f1afd0328c7bee5a887c4db
parent3ecd616cc1782210d09c9678ec1a48899f19145b (diff)
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Fix MIPS n64 readahead (bug 21026).
As noted in bug 20126, MIPS n64 uses an incorrect implementation of
readahead intended for 32-bit systems.  This patch adds a
syscalls.list entry to fix this.  An updated version of the
consolidation patch
<https://sourceware.org/ml/libc-alpha/2016-09/msg00527.html> could
remove this syscalls.list entry again.

Tested with compilation (only) for mips64; the nature of the syscall
doesn't allow for a glibc test to detect this issue.

	[BZ #21026]
	* sysdeps/unix/sysv/linux/mips/mips64/n64/syscalls.list
	(readahead): New syscall entry.
-rw-r--r--ChangeLog6
-rw-r--r--sysdeps/unix/sysv/linux/mips/mips64/n64/syscalls.list2
2 files changed, 8 insertions, 0 deletions
diff --git a/ChangeLog b/ChangeLog
index df77ffa1c2..801bb3aa48 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2017-01-05  Joseph Myers  <joseph@codesourcery.com>
+
+	[BZ #21026]
+	* sysdeps/unix/sysv/linux/mips/mips64/n64/syscalls.list
+	(readahead): New syscall entry.
+
 2017-01-04  Joseph Myers  <joseph@codesourcery.com>
 
 	* string/tester.c (test_strncat): Disable -Wstringop-overflow=
diff --git a/sysdeps/unix/sysv/linux/mips/mips64/n64/syscalls.list b/sysdeps/unix/sysv/linux/mips/mips64/n64/syscalls.list
index 533f19d7d1..5b5cfc2655 100644
--- a/sysdeps/unix/sysv/linux/mips/mips64/n64/syscalls.list
+++ b/sysdeps/unix/sysv/linux/mips/mips64/n64/syscalls.list
@@ -2,6 +2,8 @@
 
 mmap		-	mmap		b:aniiii __mmap		mmap __mmap64 mmap64
 
+readahead	-	readahead	i:iii	__readahead	readahead
+
 prlimit		EXTRA	prlimit64	i:iipp	prlimit		prlimit64
 
 fanotify_mark	EXTRA	fanotify_mark	i:iiiis	fanotify_mark