| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | #ifndef _LINUX_LINKAGE_H |
| 2 | #define _LINUX_LINKAGE_H |
| 3 | |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
| Ingo Molnar | d50efc6 | 2008-01-30 13:33:00 +0100 | [diff] [blame] | 16 | #ifndef asmregparm |
| 17 | # define asmregparm |
| 18 | #endif |
| 19 | |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 20 | #ifndef prevent_tail_call |
| 21 | # define prevent_tail_call(ret) do { } while (0) |
| 22 | #endif |
| 23 | |
| 24 | #ifndef __ALIGN |
| 25 | #define __ALIGN .align 4,0x90 |
| 26 | #define __ALIGN_STR ".align 4,0x90" |
| 27 | #endif |
| 28 | |
| 29 | #ifdef __ASSEMBLY__ |
| 30 | |
| 31 | #define ALIGN __ALIGN |
| 32 | #define ALIGN_STR __ALIGN_STR |
| 33 | |
| Jan Beulich | ab7efcc | 2006-03-24 03:16:17 -0800 | [diff] [blame] | 34 | #ifndef ENTRY |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 35 | #define ENTRY(name) \ |
| 36 | .globl name; \ |
| 37 | ALIGN; \ |
| 38 | name: |
| Jan Beulich | ab7efcc | 2006-03-24 03:16:17 -0800 | [diff] [blame] | 39 | #endif |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 40 | |
| Rusty Russell | 214541d | 2007-10-21 16:41:34 -0700 | [diff] [blame] | 41 | #ifndef WEAK |
| 42 | #define WEAK(name) \ |
| 43 | .weak name; \ |
| 44 | name: |
| 45 | #endif |
| 46 | |
| Prasanna S Panchamukhi | d0aaff9 | 2005-09-06 15:19:26 -0700 | [diff] [blame] | 47 | #define KPROBE_ENTRY(name) \ |
| Prasanna S.P | d28c439 | 2006-09-26 10:52:34 +0200 | [diff] [blame] | 48 | .pushsection .kprobes.text, "ax"; \ |
| Jan Beulich | ab7efcc | 2006-03-24 03:16:17 -0800 | [diff] [blame] | 49 | ENTRY(name) |
| Prasanna S Panchamukhi | d0aaff9 | 2005-09-06 15:19:26 -0700 | [diff] [blame] | 50 | |
| Prasanna S.P | d28c439 | 2006-09-26 10:52:34 +0200 | [diff] [blame] | 51 | #define KPROBE_END(name) \ |
| 52 | END(name); \ |
| 53 | .popsection |
| 54 | |
| Jan Beulich | ab7efcc | 2006-03-24 03:16:17 -0800 | [diff] [blame] | 55 | #ifndef END |
| 56 | #define END(name) \ |
| 57 | .size name, .-name |
| 58 | #endif |
| 59 | |
| John Reiser | 6b8be6d | 2008-01-30 13:33:13 +0100 | [diff] [blame] | 60 | /* If symbol 'name' is treated as a subroutine (gets called, and returns) |
| 61 | * then please use ENDPROC to mark 'name' as STT_FUNC for the benefit of |
| 62 | * static analysis tools such as stack depth analyzer. |
| 63 | */ |
| Jan Beulich | ab7efcc | 2006-03-24 03:16:17 -0800 | [diff] [blame] | 64 | #ifndef ENDPROC |
| 65 | #define ENDPROC(name) \ |
| 66 | .type name, @function; \ |
| 67 | END(name) |
| 68 | #endif |
| Prasanna S Panchamukhi | d0aaff9 | 2005-09-06 15:19:26 -0700 | [diff] [blame] | 69 | |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 70 | #endif |
| 71 | |
| 72 | #define NORET_TYPE /**/ |
| 73 | #define ATTRIB_NORET __attribute__((noreturn)) |
| 74 | #define NORET_AND noreturn, |
| 75 | |
| 76 | #ifndef FASTCALL |
| 77 | #define FASTCALL(x) x |
| 78 | #define fastcall |
| 79 | #endif |
| 80 | |
| 81 | #endif |