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* ARM: 7471/1: Revert "7442/1: Revert "remove unused restart trampoline""Will Deacon2012-07-281-2/+0
| | | | | | | | | This reverts commit 3b0c06226783ffc836217eb34f7eca311b1e63f7. We no longer require the restart trampoline for syscall restarting. Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: 7442/1: Revert "remove unused restart trampoline"Will Deacon2012-07-051-0/+2
| | | | | | | | | | | | This reverts commit fa18484d0947b976a769d15c83c50617493c81c1. We need the restart trampoline back so that we can revert a related problematic patch 6b5c8045ecc7e726cdaa2a9d9c8e5008050e1252 ("arm: new way of handling ERESTART_RESTARTBLOCK"). Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* arm: remove unused restart trampolineAl Viro2012-05-211-2/+0
| | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* ARM: Fix signal restart issues with NX and OABI compatRussell King2009-10-251-1/+3
| | | | | | | | | | | | | | 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 vectorsHyok S. Choi2006-03-271-1/+1
| | | | | | | | | 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_sigreturnNicolas Pitre2006-01-181-1/+1
| | | | | | | | | | | | 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 pageRussell King2005-06-221-0/+12
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>
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