1/*
2 * BK Id: SCCS/s.mk_defs.c 1.11 08/19/01 22:43:23 paulus
3 */
4/*
5 * This program is used to generate definitions needed by
6 * assembly language modules.
7 *
8 * We use the technique used in the OSF Mach kernel code:
9 * generate asm statements containing #defines,
10 * compile this file to assembler, and then extract the
11 * #defines from the assembly-language output.
12 */
13
14#include <stddef.h>
15#include <linux/config.h>
16#include <linux/signal.h>
17#include <linux/sched.h>
18#include <linux/kernel.h>
19#include <linux/errno.h>
20#include <linux/string.h>
21#include <linux/types.h>
22#include <linux/ptrace.h>
23#include <linux/mman.h>
24#include <linux/mm.h>
25#include <asm/io.h>
26#include <asm/page.h>
27#include <asm/pgtable.h>
28#include <asm/processor.h>
29#include <asm/cputable.h>
30
31#define DEFINE(sym, val) \
32	asm volatile("\n#define\t" #sym "\t%0" : : "i" (val))
33
34int
35main(void)
36{
37	/*DEFINE(KERNELBASE, KERNELBASE);*/
38	DEFINE(STATE, offsetof(struct task_struct, state));
39	DEFINE(NEXT_TASK, offsetof(struct task_struct, next_task));
40	DEFINE(COUNTER, offsetof(struct task_struct, counter));
41	DEFINE(PROCESSOR, offsetof(struct task_struct, processor));
42	DEFINE(SIGPENDING, offsetof(struct task_struct, sigpending));
43	DEFINE(THREAD, offsetof(struct task_struct, thread));
44	DEFINE(MM, offsetof(struct task_struct, mm));
45	DEFINE(ACTIVE_MM, offsetof(struct task_struct, active_mm));
46	DEFINE(TASK_STRUCT_SIZE, sizeof(struct task_struct));
47	DEFINE(KSP, offsetof(struct thread_struct, ksp));
48	DEFINE(PGDIR, offsetof(struct thread_struct, pgdir));
49	DEFINE(LAST_SYSCALL, offsetof(struct thread_struct, last_syscall));
50	DEFINE(PT_REGS, offsetof(struct thread_struct, regs));
51	DEFINE(PT_TRACESYS, PT_TRACESYS);
52	DEFINE(TASK_FLAGS, offsetof(struct task_struct, flags));
53	DEFINE(TASK_PTRACE, offsetof(struct task_struct, ptrace));
54	DEFINE(NEED_RESCHED, offsetof(struct task_struct, need_resched));
55	DEFINE(THREAD_FPR0, offsetof(struct thread_struct, fpr[0]));
56	DEFINE(THREAD_FPSCR, offsetof(struct thread_struct, fpscr));
57#ifdef CONFIG_ALTIVEC
58	DEFINE(THREAD_VR0, offsetof(struct thread_struct, vr[0]));
59	DEFINE(THREAD_VRSAVE, offsetof(struct thread_struct, vrsave));
60	DEFINE(THREAD_VSCR, offsetof(struct thread_struct, vscr));
61#endif /* CONFIG_ALTIVEC */
62	/* Interrupt register frame */
63	DEFINE(TASK_UNION_SIZE, sizeof(union task_union));
64	DEFINE(STACK_FRAME_OVERHEAD, STACK_FRAME_OVERHEAD);
65	DEFINE(INT_FRAME_SIZE, STACK_FRAME_OVERHEAD + sizeof(struct pt_regs));
66	/* in fact we only use gpr0 - gpr9 and gpr20 - gpr23 */
67	DEFINE(GPR0, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[0]));
68	DEFINE(GPR1, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[1]));
69	DEFINE(GPR2, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[2]));
70	DEFINE(GPR3, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[3]));
71	DEFINE(GPR4, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[4]));
72	DEFINE(GPR5, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[5]));
73	DEFINE(GPR6, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[6]));
74	DEFINE(GPR7, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[7]));
75	DEFINE(GPR8, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[8]));
76	DEFINE(GPR9, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[9]));
77	DEFINE(GPR10, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[10]));
78	DEFINE(GPR11, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[11]));
79	DEFINE(GPR12, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[12]));
80	DEFINE(GPR13, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[13]));
81	DEFINE(GPR14, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[14]));
82	DEFINE(GPR15, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[15]));
83	DEFINE(GPR16, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[16]));
84	DEFINE(GPR17, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[17]));
85	DEFINE(GPR18, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[18]));
86	DEFINE(GPR19, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[19]));
87	DEFINE(GPR20, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[20]));
88	DEFINE(GPR21, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[21]));
89	DEFINE(GPR22, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[22]));
90	DEFINE(GPR23, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[23]));
91	DEFINE(GPR24, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[24]));
92	DEFINE(GPR25, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[25]));
93	DEFINE(GPR26, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[26]));
94	DEFINE(GPR27, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[27]));
95	DEFINE(GPR28, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[28]));
96	DEFINE(GPR29, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[29]));
97	DEFINE(GPR30, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[30]));
98	DEFINE(GPR31, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[31]));
99	/* Note: these symbols include _ because they overlap with special
100	 * register names
101	 */
102	DEFINE(_NIP, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, nip));
103	DEFINE(_MSR, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, msr));
104	DEFINE(_CTR, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, ctr));
105	DEFINE(_LINK, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, link));
106	DEFINE(_CCR, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, ccr));
107	DEFINE(_MQ, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, mq));
108	DEFINE(_XER, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, xer));
109	DEFINE(_DAR, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, dar));
110	DEFINE(_DSISR, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, dsisr));
111	/* The PowerPC 400-class processors have neither the DAR nor the DSISR
112	 * SPRs. Hence, we overload them to hold the similar DEAR and ESR SPRs
113	 * for such processors.
114	 */
115	DEFINE(_DEAR, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, dar));
116	DEFINE(_ESR, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, dsisr));
117	DEFINE(ORIG_GPR3, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, orig_gpr3));
118	DEFINE(RESULT, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, result));
119	DEFINE(TRAP, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, trap));
120	DEFINE(CLONE_VM, CLONE_VM);
121	DEFINE(MM_PGD, offsetof(struct mm_struct, pgd));
122
123	/* About the CPU features table */
124	DEFINE(CPU_SPEC_ENTRY_SIZE, sizeof(struct cpu_spec));
125	DEFINE(CPU_SPEC_PVR_MASK, offsetof(struct cpu_spec, pvr_mask));
126	DEFINE(CPU_SPEC_PVR_VALUE, offsetof(struct cpu_spec, pvr_value));
127	DEFINE(CPU_SPEC_FEATURES, offsetof(struct cpu_spec, cpu_features));
128	DEFINE(CPU_SPEC_SETUP, offsetof(struct cpu_spec, cpu_setup));
129
130	DEFINE(NUM_USER_SEGMENTS, TASK_SIZE>>28);
131	return 0;
132}
133