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| author |   Al Viro <viro@zeniv.linux.org.uk> | 2013-01-21 17:16:07 -0500 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2013-03-03 22:55:19 -0500 |
| commit | e1b5bb6d1236d4ad2084c53aa83dde7cdf6f8eea (patch) | |
| tree | 2431edf19caecce6aad82b4ee4ed2abe45e542e3 /include/linux/linkage.h | |
| parent | teach SYSCALL_DEFINE<n> how to deal with long long/unsigned long long (diff) | |
| download | linux-dev-e1b5bb6d1236d4ad2084c53aa83dde7cdf6f8eea.tar.xz linux-dev-e1b5bb6d1236d4ad2084c53aa83dde7cdf6f8eea.zip | |
consolidate cond_syscall and SYSCALL_ALIAS declarations
take them to asm/linkage.h, with default in linux/linkage.h
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'include/linux/linkage.h')
| -rw-r--r-- | include/linux/linkage.h | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/include/linux/linkage.h b/include/linux/linkage.h index 807f1e533226..829d66c67fc2 100644 --- a/include/linux/linkage.h +++ b/include/linux/linkage.h @@ -2,6 +2,7 @@ #define _LINUX_LINKAGE_H #include <linux/compiler.h> +#include <linux/stringify.h> #include <asm/linkage.h> #ifdef __cplusplus @@ -14,6 +15,26 @@ #define asmlinkage CPP_ASMLINKAGE #endif +#ifndef SYMBOL_NAME +#ifdef CONFIG_SYMBOL_PREFIX +#define SYMBOL_NAME(x) CONFIG_SYMBOL_PREFIX ## x +#else +#define SYMBOL_NAME(x) x +#endif +#endif +#define __SYMBOL_NAME(x) __stringify(SYMBOL_NAME(x)) + +#ifndef cond_syscall +#define cond_syscall(x) asm(".weak\t" __SYMBOL_NAME(x) \ + "\n\t.set\t" __SYMBOL_NAME(x) "," __SYMBOL_NAME(sys_ni_syscall)); +#endif + +#ifndef SYSCALL_ALIAS +#define SYSCALL_ALIAS(alias, name) \ + asm ("\t.globl " __SYMBOL_NAME(alias) \ + "\n\t.set\t" __SYMBOL_NAME(alias) "," __SYMBOL_NAME(name)) +#endif + #define __page_aligned_data __section(.data..page_aligned) __aligned(PAGE_SIZE) #define __page_aligned_bss __section(.bss..page_aligned) __aligned(PAGE_SIZE) |