diff options
| author | Heiko Carstens <heiko.carstens@de.ibm.com> | 2009-01-14 14:13:59 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2009-01-18 10:43:52 -0800 |
| commit | f54d9156ee17f92cdcd1609ee1aae456cddb7b44 (patch) | |
| tree | 58e4e02413b5287e1082e6b3557a4b51485714f4 /arch | |
| parent | 2742fb1139b080aa4cd4c004577bd6eb2d221017 (diff) | |
System call wrapper infrastructure
commit 1a94bc34768e463a93cb3751819709ab0ea80a01 upstream.
From: Martin Schwidefsky <schwidefsky@de.ibm.com>
By selecting HAVE_SYSCALL_WRAPPERS architectures can activate
system call wrappers in order to sign extend system call arguments.
All architectures where the ABI defines that the caller of a function
has to perform sign extension probably need this.
Reported-by: Christian Borntraeger <borntraeger@de.ibm.com>
Acked-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/Kconfig | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/Kconfig b/arch/Kconfig index 471e72dbaf8b..a05bc220331b 100644 --- a/arch/Kconfig +++ b/arch/Kconfig @@ -60,6 +60,9 @@ config HAVE_EFFICIENT_UNALIGNED_ACCESS See Documentation/unaligned-memory-access.txt for more information on the topic of unaligned memory accesses. +config HAVE_SYSCALL_WRAPPERS + bool + config KRETPROBES def_bool y depends on KPROBES && HAVE_KRETPROBES |