GNU C Library master sources branch master updated. glibc-2.24-634-gc1f0601

[jsm28 at sourceware dot org]

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http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=c1f0601389db64d97b3a4580c9037d7e1c9daefb

commit c1f0601389db64d97b3a4580c9037d7e1c9daefb
Author: Joseph Myers <joseph@codesourcery.com>
Date:   Thu Jan 12 02:19:00 2017 +0000

    Fix MIPS o32 posix_fadvise.
    
    The posix_fadvise consolidation broke posix_fadvise for MIPS o32, so
    resulting in posix/tst-posix_fadvise failing.
    
    MIPS o32 (and the other ABIs) has only the posix_fadvise64 syscall,
    which acts like posix_fadvise64_64 (in the o32 case, because of the
    alignment argument it's actually a 7-argument syscall).  The generic
    posix_fadvise implementation presumes that if __NR_fadvise64 is
    defined, it's for the case where a single len argument is passed to
    the syscall rather than two syscall arguments in the case of a 32-bit
    system.
    
    The generic posix_fadvise64 works fine for this case (defining
    __NR_fadvise64_64 to __NR_fadvise64 as needed).  ARM has a
    posix_fadvise.c that uses __posix_fadvise64_l64 in posix_fadvise, and
    that approach also works for MIPS o32, so this patch makes MIPS o32
    include the ARM file.
    
    Tested for MIPS o32.
    
    	* sysdeps/unix/sysv/linux/mips/mips32/posix_fadvise.c: New file.

diff --git a/ChangeLog b/ChangeLog
index 5b0601f..16eb52a 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,7 @@
 2017-01-12  Joseph Myers  <joseph@codesourcery.com>
 
+	* sysdeps/unix/sysv/linux/mips/mips32/posix_fadvise.c: New file.
+
 	* math/fgetexcptflg.c (__fegetexceptflag): Store 0 in fexcept_t
 	object.
 
diff --git a/sysdeps/unix/sysv/linux/mips/mips32/posix_fadvise.c b/sysdeps/unix/sysv/linux/mips/mips32/posix_fadvise.c
new file mode 100644
index 0000000..6e9c3f9
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/mips/mips32/posix_fadvise.c
@@ -0,0 +1,4 @@
+/* The o32 MIPS fadvise64 syscall behaves as fadvise64_64.  The ARM
+   implementation of posix_fadvise works correctly for this case; the
+   generic implementation mishandles it.  */
+#include <sysdeps/unix/sysv/linux/arm/posix_fadvise.c>

-----------------------------------------------------------------------

Summary of changes:
 ChangeLog                                          |    2 ++
 .../unix/sysv/linux/mips/mips32/posix_fadvise.c    |    4 ++++
 2 files changed, 6 insertions(+), 0 deletions(-)
 create mode 100644 sysdeps/unix/sysv/linux/mips/mips32/posix_fadvise.c


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