diff options
Diffstat (limited to 'arch/x86/include/asm/linkage.h')
| -rw-r--r-- | arch/x86/include/asm/linkage.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/x86/include/asm/linkage.h b/arch/x86/include/asm/linkage.h index 5d98d0b68ff..2fd5926fb97 100644 --- a/arch/x86/include/asm/linkage.h +++ b/arch/x86/include/asm/linkage.h @@ -18,6 +18,13 @@ #define asmregparm __attribute__((regparm(3))) /* + * For syscalls that need a pointer to the pt_regs struct (ie. fork). + * The regs pointer is passed in %eax as the first argument. The + * remaining function arguments remain on the stack. + */ +#define ptregscall __attribute__((regparm(1))) + +/* * Make sure the compiler doesn't do anything stupid with the * arguments on the stack - they are owned by the *caller*, not * the callee. This just fools gcc into not spilling into them, |