diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/arm/kernel/asm-offsets.c |
Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'arch/arm/kernel/asm-offsets.c')
-rw-r--r-- | arch/arm/kernel/asm-offsets.c | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/arch/arm/kernel/asm-offsets.c b/arch/arm/kernel/asm-offsets.c new file mode 100644 index 000000000000..99d43259ff89 --- /dev/null +++ b/arch/arm/kernel/asm-offsets.c | |||
@@ -0,0 +1,83 @@ | |||
1 | /* | ||
2 | * Copyright (C) 1995-2003 Russell King | ||
3 | * 2001-2002 Keith Owens | ||
4 | * | ||
5 | * Generate definitions needed by assembly language modules. | ||
6 | * This code generates raw asm output which is post-processed to extract | ||
7 | * and format the required data. | ||
8 | * | ||
9 | * This program is free software; you can redistribute it and/or modify | ||
10 | * it under the terms of the GNU General Public License version 2 as | ||
11 | * published by the Free Software Foundation. | ||
12 | */ | ||
13 | #include <linux/sched.h> | ||
14 | #include <linux/mm.h> | ||
15 | #include <asm/mach/arch.h> | ||
16 | #include <asm/thread_info.h> | ||
17 | #include <asm/memory.h> | ||
18 | |||
19 | /* | ||
20 | * Make sure that the compiler and target are compatible. | ||
21 | */ | ||
22 | #if defined(__APCS_26__) | ||
23 | #error Sorry, your compiler targets APCS-26 but this kernel requires APCS-32 | ||
24 | #endif | ||
25 | /* | ||
26 | * GCC 2.95.1, 2.95.2: ignores register clobber list in asm(). | ||
27 | * GCC 3.0, 3.1: general bad code generation. | ||
28 | * GCC 3.2.0: incorrect function argument offset calculation. | ||
29 | * GCC 3.2.x: miscompiles NEW_AUX_ENT in fs/binfmt_elf.c | ||
30 | * (http://gcc.gnu.org/PR8896) and incorrect structure | ||
31 | * initialisation in fs/jffs2/erase.c | ||
32 | */ | ||
33 | #if __GNUC__ < 2 || \ | ||
34 | (__GNUC__ == 2 && __GNUC_MINOR__ < 95) || \ | ||
35 | (__GNUC__ == 2 && __GNUC_MINOR__ == 95 && __GNUC_PATCHLEVEL__ != 0 && \ | ||
36 | __GNUC_PATCHLEVEL__ < 3) || \ | ||
37 | (__GNUC__ == 3 && __GNUC_MINOR__ < 3) | ||
38 | #error Your compiler is too buggy; it is known to miscompile kernels. | ||
39 | #error Known good compilers: 2.95.3, 2.95.4, 2.96, 3.3 | ||
40 | #endif | ||
41 | |||
42 | /* Use marker if you need to separate the values later */ | ||
43 | |||
44 | #define DEFINE(sym, val) \ | ||
45 | asm volatile("\n->" #sym " %0 " #val : : "i" (val)) | ||
46 | |||
47 | #define BLANK() asm volatile("\n->" : : ) | ||
48 | |||
49 | int main(void) | ||
50 | { | ||
51 | DEFINE(TSK_ACTIVE_MM, offsetof(struct task_struct, active_mm)); | ||
52 | BLANK(); | ||
53 | DEFINE(TI_FLAGS, offsetof(struct thread_info, flags)); | ||
54 | DEFINE(TI_PREEMPT, offsetof(struct thread_info, preempt_count)); | ||
55 | DEFINE(TI_ADDR_LIMIT, offsetof(struct thread_info, addr_limit)); | ||
56 | DEFINE(TI_TASK, offsetof(struct thread_info, task)); | ||
57 | DEFINE(TI_EXEC_DOMAIN, offsetof(struct thread_info, exec_domain)); | ||
58 | DEFINE(TI_CPU, offsetof(struct thread_info, cpu)); | ||
59 | DEFINE(TI_CPU_DOMAIN, offsetof(struct thread_info, cpu_domain)); | ||
60 | DEFINE(TI_CPU_SAVE, offsetof(struct thread_info, cpu_context)); | ||
61 | DEFINE(TI_USED_CP, offsetof(struct thread_info, used_cp)); | ||
62 | DEFINE(TI_TP_VALUE, offsetof(struct thread_info, tp_value)); | ||
63 | DEFINE(TI_FPSTATE, offsetof(struct thread_info, fpstate)); | ||
64 | DEFINE(TI_VFPSTATE, offsetof(struct thread_info, vfpstate)); | ||
65 | DEFINE(TI_IWMMXT_STATE, (offsetof(struct thread_info, fpstate)+4)&~7); | ||
66 | BLANK(); | ||
67 | #if __LINUX_ARM_ARCH__ >= 6 | ||
68 | DEFINE(MM_CONTEXT_ID, offsetof(struct mm_struct, context.id)); | ||
69 | BLANK(); | ||
70 | #endif | ||
71 | DEFINE(VMA_VM_MM, offsetof(struct vm_area_struct, vm_mm)); | ||
72 | DEFINE(VMA_VM_FLAGS, offsetof(struct vm_area_struct, vm_flags)); | ||
73 | BLANK(); | ||
74 | DEFINE(VM_EXEC, VM_EXEC); | ||
75 | BLANK(); | ||
76 | DEFINE(PAGE_SZ, PAGE_SIZE); | ||
77 | DEFINE(VIRT_OFFSET, PAGE_OFFSET); | ||
78 | BLANK(); | ||
79 | DEFINE(SYS_ERROR0, 0x9f0000); | ||
80 | BLANK(); | ||
81 | DEFINE(SIZEOF_MACHINE_DESC, sizeof(struct machine_desc)); | ||
82 | return 0; | ||
83 | } | ||