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
11 #include <stddef.h>
12 #include <linux/config.h>
13 #include <linux/signal.h>
14 #include <linux/sched.h>
15 #include <linux/kernel.h>
16 #include <linux/errno.h>
17 #include <linux/string.h>
18 #include <linux/types.h>
19 #include <linux/ptrace.h>
20 #include <linux/mman.h>
21 #include <linux/mm.h>
22 #include <asm/io.h>
23 #include <asm/page.h>
24 #include <asm/pgtable.h>
25 #include <asm/processor.h>
26 #include <asm/cputable.h>
27
28 #define DEFINE(sym, val) \
29 asm volatile("\n#define\t" #sym "\t%0" : : "i" (val))
30
31 int
main(void)32 main(void)
33 {
34 /*DEFINE(KERNELBASE, KERNELBASE);*/
35 DEFINE(STATE, offsetof(struct task_struct, state));
36 DEFINE(NEXT_TASK, offsetof(struct task_struct, next_task));
37 DEFINE(COUNTER, offsetof(struct task_struct, counter));
38 DEFINE(PROCESSOR, offsetof(struct task_struct, processor));
39 DEFINE(SIGPENDING, offsetof(struct task_struct, sigpending));
40 DEFINE(THREAD, offsetof(struct task_struct, thread));
41 DEFINE(MM, offsetof(struct task_struct, mm));
42 DEFINE(ACTIVE_MM, offsetof(struct task_struct, active_mm));
43 DEFINE(TASK_STRUCT_SIZE, sizeof(struct task_struct));
44 DEFINE(KSP, offsetof(struct thread_struct, ksp));
45 DEFINE(PGDIR, offsetof(struct thread_struct, pgdir));
46 DEFINE(LAST_SYSCALL, offsetof(struct thread_struct, last_syscall));
47 DEFINE(PT_REGS, offsetof(struct thread_struct, regs));
48 DEFINE(PT_TRACESYS, PT_TRACESYS);
49 DEFINE(TASK_FLAGS, offsetof(struct task_struct, flags));
50 DEFINE(TASK_PTRACE, offsetof(struct task_struct, ptrace));
51 DEFINE(NEED_RESCHED, offsetof(struct task_struct, need_resched));
52 DEFINE(THREAD_FPEXC_MODE, offsetof(struct thread_struct, fpexc_mode));
53 DEFINE(THREAD_FPR0, offsetof(struct thread_struct, fpr[0]));
54 DEFINE(THREAD_FPSCR, offsetof(struct thread_struct, fpscr));
55 #ifdef CONFIG_ALTIVEC
56 DEFINE(THREAD_VR0, offsetof(struct thread_struct, vr[0]));
57 DEFINE(THREAD_VRSAVE, offsetof(struct thread_struct, vrsave));
58 DEFINE(THREAD_VSCR, offsetof(struct thread_struct, vscr));
59 DEFINE(THREAD_USED_VR, offsetof(struct thread_struct, used_vr));
60 #endif /* CONFIG_ALTIVEC */
61 #ifdef CONFIG_4xx
62 DEFINE(THREAD_DBCR0, offsetof(struct thread_struct, dbcr0));
63 #endif
64 /* Interrupt register frame */
65 DEFINE(TASK_UNION_SIZE, sizeof(union task_union));
66 DEFINE(STACK_FRAME_OVERHEAD, STACK_FRAME_OVERHEAD);
67 DEFINE(INT_FRAME_SIZE, STACK_FRAME_OVERHEAD + sizeof(struct pt_regs));
68 /* in fact we only use gpr0 - gpr9 and gpr20 - gpr23 */
69 DEFINE(GPR0, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[0]));
70 DEFINE(GPR1, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[1]));
71 DEFINE(GPR2, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[2]));
72 DEFINE(GPR3, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[3]));
73 DEFINE(GPR4, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[4]));
74 DEFINE(GPR5, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[5]));
75 DEFINE(GPR6, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[6]));
76 DEFINE(GPR7, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[7]));
77 DEFINE(GPR8, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[8]));
78 DEFINE(GPR9, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[9]));
79 DEFINE(GPR10, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[10]));
80 DEFINE(GPR11, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[11]));
81 DEFINE(GPR12, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[12]));
82 DEFINE(GPR13, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[13]));
83 DEFINE(GPR14, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[14]));
84 DEFINE(GPR15, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[15]));
85 DEFINE(GPR16, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[16]));
86 DEFINE(GPR17, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[17]));
87 DEFINE(GPR18, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[18]));
88 DEFINE(GPR19, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[19]));
89 DEFINE(GPR20, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[20]));
90 DEFINE(GPR21, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[21]));
91 DEFINE(GPR22, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[22]));
92 DEFINE(GPR23, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[23]));
93 DEFINE(GPR24, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[24]));
94 DEFINE(GPR25, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[25]));
95 DEFINE(GPR26, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[26]));
96 DEFINE(GPR27, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[27]));
97 DEFINE(GPR28, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[28]));
98 DEFINE(GPR29, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[29]));
99 DEFINE(GPR30, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[30]));
100 DEFINE(GPR31, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[31]));
101 /* Note: these symbols include _ because they overlap with special
102 * register names
103 */
104 DEFINE(_NIP, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, nip));
105 DEFINE(_MSR, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, msr));
106 DEFINE(_CTR, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, ctr));
107 DEFINE(_LINK, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, link));
108 DEFINE(_CCR, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, ccr));
109 DEFINE(_MQ, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, mq));
110 DEFINE(_XER, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, xer));
111 DEFINE(_DAR, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, dar));
112 DEFINE(_DSISR, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, dsisr));
113 /* The PowerPC 400-class processors have neither the DAR nor the DSISR
114 * SPRs. Hence, we overload them to hold the similar DEAR and ESR SPRs
115 * for such processors.
116 */
117 DEFINE(_DEAR, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, dar));
118 DEFINE(_ESR, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, dsisr));
119 DEFINE(ORIG_GPR3, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, orig_gpr3));
120 DEFINE(RESULT, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, result));
121 DEFINE(TRAP, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, trap));
122 DEFINE(CLONE_VM, CLONE_VM);
123 DEFINE(MM_PGD, offsetof(struct mm_struct, pgd));
124
125 /* About the CPU features table */
126 DEFINE(CPU_SPEC_ENTRY_SIZE, sizeof(struct cpu_spec));
127 DEFINE(CPU_SPEC_PVR_MASK, offsetof(struct cpu_spec, pvr_mask));
128 DEFINE(CPU_SPEC_PVR_VALUE, offsetof(struct cpu_spec, pvr_value));
129 DEFINE(CPU_SPEC_FEATURES, offsetof(struct cpu_spec, cpu_features));
130 DEFINE(CPU_SPEC_SETUP, offsetof(struct cpu_spec, cpu_setup));
131
132 DEFINE(NUM_USER_SEGMENTS, TASK_SIZE>>28);
133 return 0;
134 }
135