linux-toradex.git/arch/tile/include/asm/compat.h, branch v3.9.4

tile: work around bug in the generic sys_llseek

2013-03-04T16:19:09+00:00

sys_llseek should specify the high and low 32-bit seek values as "unsigned
int" but instead it specifies "unsigned long".  Since compat syscall
arguments are always sign-extended on tile, this means that a seek value
of 0xffffffff will be incorrectly interpreted as a value of -1ULL.

To avoid the risk of breaking binary compatibility on architectures
that already use sys_llseek this way, we follow the same path as MIPS
and provide a wrapper override.

Signed-off-by: Chris Metcalf 
Cc: stable@kernel.org [v3.6 onwards]

tile: switch to generic compat rt_sigaction()

2013-02-03T23:16:22+00:00

Signed-off-by: Al Viro

tile: switch to generic compat rt_sigqueueinfo()

2013-02-03T23:16:22+00:00

Signed-off-by: Al Viro

tile: switch to generic sigaltstack

2013-02-03T23:16:21+00:00

Signed-off-by: Al Viro

compat: generic compat_sys_sched_rr_get_interval() implementation

2012-12-18T01:15:18+00:00

This function is used by sparc, powerpc tile and arm64 for compat support.
 The patch adds a generic implementation with a wrapper for PowerPC to do
the u32->int sign extension.

The reason for a single patch covering powerpc, tile, sparc and arm64 is
to keep it bisectable, otherwise kernel building may fail with mismatched
function declarations.

Signed-off-by: Catalin Marinas 
Acked-by: Chris Metcalf   [for tile]
Acked-by: David S. Miller 
Acked-by: Arnd Bergmann 
Cc: Benjamin Herrenschmidt 
Cc: Paul Mackerras 
Cc: Alexander Viro 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

arch/tile: eliminate pt_regs trampolines for syscalls

2012-10-23T20:23:58+00:00

Using the new current_pt_regs() model, we can remove some trampolines
from assembly code and call directly to the C syscall implementations.
rt_sigreturn() and clone() still need some assembly wrapping, but no
longer are passed a pt_regs pointer.  sigaltstack() and the
tilepro-specific cmpxchg_badaddr() syscalls are now just straight C.

Signed-off-by: Chris Metcalf

Drop struct pt_regs * argument in compat_sys_execve()

2012-10-20T17:13:11+00:00

Signed-off-by: Al Viro

compat: move compat_siginfo_t definition to asm/compat.h

2012-10-05T18:05:16+00:00

This is a preparatory patch for the introduction of NT_SIGINFO elf note.

Make the location of compat_siginfo_t uniform across eight architectures
which have it.  Now it can be pulled in by including asm/compat.h or
linux/compat.h.

Most of the copies are verbatim.  compat_uid[32]_t had to be replaced by
__compat_uid[32]_t.  compat_uptr_t had to be moved up before
compat_siginfo_t in asm/compat.h on a several architectures (tile already
had it moved up).  compat_sigval_t had to be relocated from linux/compat.h
to asm/compat.h.

Signed-off-by: Denys Vlasenko 
Cc: Oleg Nesterov 
Cc: Amerigo Wang 
Cc: "Jonathan M. Foote" 
Cc: Roland McGrath 
Cc: Pedro Alves 
Cc: Fengguang Wu 
Cc: Stephen Rothwell 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

bury __kernel_nlink_t, make internal nlink_t consistent

2012-05-31T01:04:50+00:00

Signed-off-by: Al Viro

arch/tile: support header for cacheflush() syscall

2012-05-25T16:48:24+00:00

We already had a syscall that did some dcache flushing, but it was
not used in practice.  Make it MIPS compatible instead so it can
do both the DCACHE and ICACHE actions.  We have code that wants to
be able to use the ICACHE flush mode from userspace so this change
enables that.

Signed-off-by: Chris Metcalf