linux-toradex.git/arch/arm/kernel/signal.h, branch v3.4.9 Linux kernel for Apalis and Colibri modules ARM: Fix signal restart issues with NX and OABI compat 2009-10-25T15:39:37+00:00 Russell King rmk+kernel@arm.linux.org.uk 2009-10-25T15:39:37+00:00 ab72b00734ae4d0b5ff273a0f6c7abeaa3713c76 The signal restarting code was placed on the user stack when OABI compatibility is enabled. Unfortunately, with an EABI NX executable, this results in an attempt to run code from the non-executable stack, which segfaults the application. Fix this by placing the code in the vectors page, along side the signal return code, and directing the application to that code. Reported-by: saeed bishara <saeed.bishara@gmail.com> Tested-by: saeed bishara <saeed.bishara@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> 
The signal restarting code was placed on the user stack when OABI
compatibility is enabled.  Unfortunately, with an EABI NX executable,
this results in an attempt to run code from the non-executable stack,
which segfaults the application.

Fix this by placing the code in the vectors page, along side the
signal return code, and directing the application to that code.

Reported-by: saeed bishara <saeed.bishara@gmail.com>
Tested-by: saeed bishara <saeed.bishara@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
[ARM] nommu: fixups for the exception vectors 2006-03-27T14:18:50+00:00 Hyok S. Choi hyok.choi@samsung.com 2006-03-27T14:18:50+00:00 c760fc1997e8156ebc4134c42c18f68137c689f9 The high page vector (0xFFFF0000) does not supported in nommu mode. This patch allows the vectors to be 0x00000000 or the begining of DRAM in nommu mode. Signed-off-by: Hyok S. Choi <hyok.choi@samsung.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> 
The high page vector (0xFFFF0000) does not supported in nommu mode.
This patch allows the vectors to be 0x00000000 or the begining of DRAM
in nommu mode.

Signed-off-by: Hyok S. Choi <hyok.choi@samsung.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
[ARM] 3270/1: ARM EABI: fix sigreturn and rt_sigreturn 2006-01-18T22:38:47+00:00 Nicolas Pitre nico@cam.org 2006-01-18T22:38:47+00:00 fcca538b83f2984095f15f0f90f6c7686e3a32d4 Patch from Nicolas Pitre The signal return path consists of user code provided by the kernel. Since a syscall is used, it has to be updated to work with EABI. Noticed by Daniel Jacobowitz. Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> 
Patch from Nicolas Pitre

The signal return path consists of user code provided by the kernel.
Since a syscall is used, it has to be updated to work with EABI.

Noticed by Daniel Jacobowitz.

Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
[PATCH] ARM: Move signal return code into vector page 2005-06-22T19:26:05+00:00 Russell King rmk@dyn-67.arm.linux.org.uk 2005-06-22T19:26:05+00:00 e00d349e7781a92cf35b242259c9e5341a9661bb Move the signal return code into the vector page instead of placing it on the user mode stack, which will allow us to avoid flushing the instruction cache on signals, as well as eventually allowing non-exec stack. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> 
Move the signal return code into the vector page instead of placing
it on the user mode stack, which will allow us to avoid flushing
the instruction cache on signals, as well as eventually allowing
non-exec stack.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>