1 #ifndef _LINUX_LINKAGE_H 2 #define _LINUX_LINKAGE_H 3 4 #include <asm/linkage.h> 5 6 #ifdef __cplusplus 7 #define CPP_ASMLINKAGE extern "C" 8 #else 9 #define CPP_ASMLINKAGE 10 #endif 11 12 #ifndef asmlinkage 13 #define asmlinkage CPP_ASMLINKAGE 14 #endif 15 16 #ifndef prevent_tail_call 17 # define prevent_tail_call(ret) do { } while (0) 18 #endif 19 20 #ifndef __ALIGN 21 #define __ALIGN .align 4,0x90 22 #define __ALIGN_STR ".align 4,0x90" 23 #endif 24 25 #ifdef __ASSEMBLY__ 26 27 #define ALIGN __ALIGN 28 #define ALIGN_STR __ALIGN_STR 29 30 #ifndef ENTRY 31 #define ENTRY(name) \ 32 .globl name; \ 33 ALIGN; \ 34 name: 35 #endif 36 37 #ifndef WEAK 38 #define WEAK(name) \ 39 .weak name; \ 40 name: 41 #endif 42 43 #define KPROBE_ENTRY(name) \ 44 .pushsection .kprobes.text, "ax"; \ 45 ENTRY(name) 46 47 #define KPROBE_END(name) \ 48 END(name); \ 49 .popsection 50 51 #ifndef END 52 #define END(name) \ 53 .size name, .-name 54 #endif 55 56 #ifndef ENDPROC 57 #define ENDPROC(name) \ 58 .type name, @function; \ 59 END(name) 60 #endif 61 62 #endif 63 64 #define NORET_TYPE /**/ 65 #define ATTRIB_NORET __attribute__((noreturn)) 66 #define NORET_AND noreturn, 67 68 #ifndef FASTCALL 69 #define FASTCALL(x) x 70 #define fastcall 71 #endif 72 73 #endif 74