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| author | Joseph Myers <joseph@codesourcery.com> | 2017-01-12 02:19:00 +0000 |
|---|---|---|
| committer | Joseph Myers <joseph@codesourcery.com> | 2017-01-12 02:19:00 +0000 |
| commit | c1f0601389db64d97b3a4580c9037d7e1c9daefb (patch) | |
| tree | f0cd4edaf3965527e3fe3085385846a041e30184 | |
| parent | 4dfb9c941132d7b10b897c678f360fd27d6f5c95 (diff) | |
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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.
| -rw-r--r-- | ChangeLog | 2 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/mips/mips32/posix_fadvise.c | 4 |
2 files changed, 6 insertions, 0 deletions
@@ -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 0000000000..6e9c3f9da5 --- /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> |