#ifndef _LINUX_LINKAGE_H #define _LINUX_LINKAGE_H #include <linux/compiler.h> #include <asm/linkage.h> #ifdef __cplusplus #define CPP_ASMLINKAGE extern "C" #else #define CPP_ASMLINKAGE #endif #ifndef asmlinkage #define asmlinkage CPP_ASMLINKAGE #endif #define __page_aligned_data __section(.data..page_aligned) __aligned(PAGE_SIZE) #define __page_aligned_bss __section(.bss..page_aligned) __aligned(PAGE_SIZE) /* * For assembly routines. * * Note when using these that you must specify the appropriate * alignment directives yourself */ #define __PAGE_ALIGNED_DATA .section ".data..page_aligned", "aw" #define __PAGE_ALIGNED_BSS .section ".bss..page_aligned", "aw" /* * This is used by architectures to keep arguments on the stack * untouched by the compiler by keeping them live until the end. * The argument stack may be owned by the assembly-language * caller, not the callee, and gcc doesn't always understand * that. * * We have the return value, and a maximum of six arguments. * * This should always be followed by a "return ret" for the * protection to work (ie no more work that the compiler might * end up needing stack temporaries for). */ /* Assembly files may be compiled with -traditional .. */ #ifndef __ASSEMBLY__ #ifndef asmlinkage_protect # define asmlinkage_protect(n, ret, args...) do { } while (0) #endif #endif #ifndef __ALIGN #define __ALIGN .align 4,0x90 #define __ALIGN_STR ".align 4,0x90" #endif #ifdef __ASSEMBLY__ #ifndef LINKER_SCRIPT #define ALIGN __ALIGN #define ALIGN_STR __ALIGN_STR #ifndef ENTRY #define ENTRY(name) \ .globl name; \ ALIGN; \ name: #endif #endif /* LINKER_SCRIPT */ #ifndef WEAK #define WEAK(name) \ .weak name; \ name: #endif #ifndef END #define END(name) \ .size name, .-name #endif /* If symbol 'name' is treated as a subroutine (gets called, and returns) * then please use ENDPROC to mark 'name' as STT_FUNC for the benefit of * static analysis tools such as stack depth analyzer. */ #ifndef ENDPROC #define ENDPROC(name) \ .type name, @function; \ END(name) #endif #endif #endif