linux-stable.git/arch/parisc/include/uapi/asm, branch linux-3.16.y

parisc: Don't use BITS_PER_LONG in userspace-exported swab.h header

2017-03-16T02:27:07+00:00

commit 2ad5d52d42810bed95100a3d912679d8864421ec upstream.

In swab.h the "#if BITS_PER_LONG > 32" breaks compiling userspace programs if
BITS_PER_LONG is #defined by userspace with the sizeof() compiler builtin.

Solve this problem by using __BITS_PER_LONG instead.  Since we now
#include asm/bitsperlong.h avoid further potential userspace pollution
by moving the #define of SHIFT_PER_LONG to bitops.h which is not
exported to userspace.

This patch unbreaks compiling qemu on hppa/parisc.

Signed-off-by: Helge Deller 
Signed-off-by: Ben Hutchings

parisc: Fix order of EREFUSED define in errno.h

2016-11-20T01:17:14+00:00

commit 3eb53b20d7bd1374598cfb1feaa081fcac0e76cd upstream.

When building gccgo in userspace, errno.h gets parsed and the go include file
sysinfo.go is generated.

Since EREFUSED is defined to the same value as ECONNREFUSED, and ECONNREFUSED
is defined later on in errno.h, this leads to go complaining that EREFUSED
isn't defined yet.

Fix this trivial problem by moving the define of EREFUSED down after
ECONNREFUSED in errno.h (and clean up the indenting while touching this line).

Signed-off-by: Helge Deller 
Signed-off-by: Ben Hutchings

parisc: Fix __ARCH_SI_PREAMBLE_SIZE

2016-02-02T19:09:34+00:00

commit e60fc5aa608eb38b47ba4ee058f306f739eb70a0 upstream.

On a 64bit kernel build the compiler aligns the _sifields union in the
struct siginfo_t on a 64bit address. The __ARCH_SI_PREAMBLE_SIZE define
compensates for this alignment and thus fixes the wait testcase of the
strace package.

The symptoms of a wrong __ARCH_SI_PREAMBLE_SIZE value is that
_sigchld.si_stime variable is missed to be copied and thus after a
copy_siginfo() will have uninitialized values.

Signed-off-by: Helge Deller 
Signed-off-by: Luis Henriques

parisc: Drop unused MADV_xxxK_PAGES flags from asm/mman.h

2015-12-14T10:17:12+00:00

commit dcbf0d299c00ed4f82ea8d6e359ad88a5182f9b8 upstream.

Drop the MADV_xxK_PAGES flags, which were never used and were from a proposed
API which was never integrated into the generic Linux kernel code.

Signed-off-by: Helge Deller 
Signed-off-by: Luis Henriques

parisc: Use compat layer for msgctl, shmat, shmctl and semtimedop syscalls

2014-11-27T11:21:41+00:00

commit 2fe749f50b0bec07650ef135b29b1f55bf543869 upstream.

Switch over the msgctl, shmat, shmctl and semtimedop syscalls to use the compat
layer. The problem was found with the debian procenv package, which called
	shmctl(0, SHM_INFO, &info);
in which the shmctl syscall then overwrote parts of the surrounding areas on
the stack on which the info variable was stored and thus lead to a segfault
later on.

Additionally fix the definition of struct shminfo64 to use unsigned longs like
the other architectures. This has no impact on userspace since we only have a
32bit userspace up to now.

Signed-off-by: Helge Deller 
Cc: John David Anglin 
Signed-off-by: Luis Henriques

parisc: Remove SA_RESTORER define

2014-07-24T20:03:26+00:00

The sa_restorer field in struct sigaction is obsolete and no longer in
the parisc implementation.  However, the core code assumes the field is
present if SA_RESTORER is defined. So, the define needs to be removed.

Signed-off-by: John David Anglin 
Cc: 
Signed-off-by: Helge Deller

parisc: add renameat2 syscall

2014-05-20T08:59:37+00:00

Signed-off-by: Miklos Szeredi 
Acked-by: Helge Deller

parisc: Use generic uapi/asm/resource.h file

2014-05-01T17:29:26+00:00

Signed-off-by: Helge Deller

parisc: remove _STK_LIM_MAX override

2014-05-01T17:28:44+00:00

There are only a couple of architectures that override _STK_LIM_MAX to
a non-infinity value. This changes the stack allocation semantics in
subtle ways. For example, GNU make changes its stack allocation to the
hard maximum defined by _STK_LIM_MAX. As a results, threads executed
by processes running under make are allocated a stack size of
_STK_LIM_MAX rather than a sensible default value. This causes various
thread stress tests to fail when they can't muster more than about 50
threads.

The attached change implements the default behavior used by the
majority of architectures.

Signed-off-by: John David Anglin 
Reviewed-by: Carlos O'Donell 
Cc: stable@vger.kernel.org # 3.14
Signed-off-by: Helge Deller

parisc: wire up sys_utimes

2014-03-23T15:57:13+00:00

We seem to be nearly the only platform which does not provide the
sys_utimes syscall.  Adding it now makes our life much easier with
userspace applications (like dietlibc and e2fsprogs) since we then
behave like all other platforms too and don't need extra patches which
are hard to get upstream anyway because we are not a mainstream
architecture.

Signed-off-by: Helge Deller 
Cc: stable@vger.kernel.org # v3.13