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author | Vineet Gupta <vgupta@synopsys.com> | 2013-02-11 15:25:33 +0100 |
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committer | Vineet Gupta <vgupta@synopsys.com> | 2013-02-15 18:46:11 +0100 |
commit | 8c2f4a8dd0e0fc9dcaf14c768544039eddfa7375 (patch) | |
tree | 2cee072559f4686dd070fdeb930b05e2aafa8449 /arch/arc/include/uapi/asm/signal.h | |
parent | ARC: Hostlink Pseudo-Driver for Metaware Debugger (diff) | |
download | linux-8c2f4a8dd0e0fc9dcaf14c768544039eddfa7375.tar.xz linux-8c2f4a8dd0e0fc9dcaf14c768544039eddfa7375.zip |
ARC: UAPI Disintegrate arch/arc/include/asm
1. ./genfilelist.pl arch/arc/include/asm/
2. Create arch/arc/include/uapi/asm/Kbuild as follows
+# UAPI Header export list
+include include/uapi/asm-generic/Kbuild.asm
3. ./disintegrate-one.pl arch/arc/include/{,uapi/}asm/<above-list>
4. Edit arch/arc/include/asm/Kbuild to remove ref to
asm-generic/Kbuild.asm
- To work around empty uapi/asm/setup.h added a placholder comment.
- Also a manual #ifdef __ASSEMBLY__ for a late ptrace change
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Cc: David Howells <dhowells@redhat.com>
Diffstat (limited to 'arch/arc/include/uapi/asm/signal.h')
-rw-r--r-- | arch/arc/include/uapi/asm/signal.h | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/arch/arc/include/uapi/asm/signal.h b/arch/arc/include/uapi/asm/signal.h new file mode 100644 index 000000000000..fad62f7f42d6 --- /dev/null +++ b/arch/arc/include/uapi/asm/signal.h @@ -0,0 +1,27 @@ +/* + * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * Amit Bhor, Sameer Dhavale: Codito Technologies 2004 + */ + +#ifndef _ASM_ARC_SIGNAL_H +#define _ASM_ARC_SIGNAL_H + +/* + * This is much needed for ARC sigreturn optimization. + * This allows uClibc to piggback the addr of a sigreturn stub in sigaction, + * which allows sigreturn based re-entry into kernel after handling signal. + * W/o this kernel needs to "synthesize" the sigreturn trampoline on user + * mode stack which in turn forces the following: + * -TLB Flush (after making the stack page executable) + * -Cache line Flush (to make I/D Cache lines coherent) + */ +#define SA_RESTORER 0x04000000 + +#include <asm-generic/signal.h> + +#endif /* _ASM_ARC_SIGNAL_H */ |