xref: /openbmc/linux/arch/sparc/kernel/asm-offsets.c (revision 8d08a4c1)
1 /*
2  * This program is used to generate definitions needed by
3  * assembly language modules.
4  *
5  * We use the technique used in the OSF Mach kernel code:
6  * generate asm statements containing #defines,
7  * compile this file to assembler, and then extract the
8  * #defines from the assembly-language output.
9  *
10  * On sparc, thread_info data is static and TI_XXX offsets are computed by hand.
11  */
12 
13 #include <linux/sched.h>
14 #include <linux/mm_types.h>
15 // #include <linux/mm.h>
16 #include <linux/kbuild.h>
17 
18 #include <asm/hibernate.h>
19 
20 #ifdef CONFIG_SPARC32
21 int sparc32_foo(void)
22 {
23 	DEFINE(AOFF_thread_fork_kpsr,
24 			offsetof(struct thread_struct, fork_kpsr));
25 	return 0;
26 }
27 #else
28 int sparc64_foo(void)
29 {
30 #ifdef CONFIG_HIBERNATION
31 	BLANK();
32 	OFFSET(SC_REG_FP, saved_context, fp);
33 	OFFSET(SC_REG_CWP, saved_context, cwp);
34 	OFFSET(SC_REG_WSTATE, saved_context, wstate);
35 
36 	OFFSET(SC_REG_TICK, saved_context, tick);
37 	OFFSET(SC_REG_PSTATE, saved_context, pstate);
38 
39 	OFFSET(SC_REG_G4, saved_context, g4);
40 	OFFSET(SC_REG_G5, saved_context, g5);
41 	OFFSET(SC_REG_G6, saved_context, g6);
42 #endif
43 	return 0;
44 }
45 #endif
46 
47 int foo(void)
48 {
49 	BLANK();
50 	DEFINE(AOFF_task_thread, offsetof(struct task_struct, thread));
51 	BLANK();
52 	DEFINE(AOFF_mm_context, offsetof(struct mm_struct, context));
53 	BLANK();
54 	DEFINE(VMA_VM_MM,    offsetof(struct vm_area_struct, vm_mm));
55 
56 	/* DEFINE(NUM_USER_SEGMENTS, TASK_SIZE>>28); */
57 	return 0;
58 }
59 
60