linux-toradex.git/arch/s390/kernel/compat_linux.h, branch v4.3.1

s390: add support for vector extension

2014-10-09T07:14:13+00:00

The vector extension introduces 32 128-bit vector registers and a set of
instruction to operate on the vector registers.

The kernel can control the use of vector registers for the problem state
program with a bit in control register 0. Once enabled for a process the
kernel needs to retain the content of the vector registers on context
switch. The signal frame is extended to include the vector registers.
Two new register sets NT_S390_VXRS_LOW and NT_S390_VXRS_HIGH are added
to the regset interface for the debugger and core dumps.

Signed-off-by: Martin Schwidefsky

s390/compat: correct ucontext layout for high gprs

2014-06-16T08:31:40+00:00

The uc_sigmask definition in the kernel differs from the one in the
glibc, the kernel uc_sigmask has 64 bits while the glibc verison
is 1024 bits. The extension of the ucontext structure for 64-bit
register support for 31-bit compat processes added a new field
uc_gprs_high which starts 8 bytes after the uc_sigmask field.
As the glibc view of the ucontext assumes a size of 128 bytes for
uc_sigmask add a 120 byte padding to the kernel structure
ucontext_extended after the 8 byte uc_sigmask.

Signed-off-by: Martin Schwidefsky

s390/compat: get rid of compat wrapper assembly code

2014-03-06T15:30:48+00:00

Now that all compat syscalls have been converted to use the
COMPAT_SYSCALL_DEFINE macros, we don't need to compat syscall
wrapper assembly code anymore.
So remove it and fix up the system call table accordingly.

Signed-off-by: Heiko Carstens

s390/compat: add sync_file_range and fallocate compat syscalls

2014-03-04T08:05:47+00:00

The compat syscall wrappers for sync_file_range and fallocate merged 32 bit
parameters into 64 bit parameters. Therefore they did more than just the
usual zero and/or sign extension of system call parameters.

So convert these two wrappers to full s390 specific compat sytem calls.

Signed-off-by: Heiko Carstens

s390/compat: convert to COMPAT_SYSCALL_DEFINEx part 7

2014-03-04T08:05:38+00:00

Signed-off-by: Heiko Carstens

s390/compat: convert to COMPAT_SYSCALL_DEFINEx part 6

2014-03-04T08:05:37+00:00

Signed-off-by: Heiko Carstens

s390/compat: convert to COMPAT_SYSCALL_DEFINEx part 5

2014-03-04T08:05:36+00:00

Signed-off-by: Heiko Carstens

s390/compat: convert to COMPAT_SYSCALL_DEFINEx part 4

2014-03-04T08:05:36+00:00

Signed-off-by: Heiko Carstens

s390/compat: convert to COMPAT_SYSCALL_DEFINEx part 3

2014-03-04T08:05:35+00:00

Signed-off-by: Heiko Carstens

s390/compat: convert to COMPAT_SYSCALL_DEFINEx part 2

2014-03-04T08:05:35+00:00

Signed-off-by: Heiko Carstens