1 // SPDX-License-Identifier: GPL-2.0
2 /*
3 * This program is used to generate definitions needed by
4 * assembly language modules.
5 *
6 * We use the technique used in the OSF Mach kernel code:
7 * generate asm statements containing #defines,
8 * compile this file to assembler, and then extract the
9 * #defines from the assembly-language output.
10 */
11
12 #include <linux/stddef.h>
13 #include <linux/sched.h>
14 #include <linux/kernel_stat.h>
15 #include <linux/ptrace.h>
16 #include <linux/hardirq.h>
17 #include <linux/kbuild.h>
18 #include <asm/irq.h>
19 #include <asm/ptrace.h>
20
main(void)21 int main(void)
22 {
23 /* offsets into the task struct */
24 OFFSET(TASK_FLAGS, task_struct, flags);
25 OFFSET(TASK_PTRACE, task_struct, ptrace);
26 OFFSET(TASK_BLOCKED, task_struct, blocked);
27 OFFSET(TASK_THREAD, task_struct, thread);
28 OFFSET(TASK_THREAD_INFO, task_struct, stack);
29 OFFSET(TASK_MM, task_struct, mm);
30 OFFSET(TASK_ACTIVE_MM, task_struct, active_mm);
31
32 /* offsets into the irq_cpustat_t struct */
33 DEFINE(CPUSTAT_SOFTIRQ_PENDING, offsetof(irq_cpustat_t,
34 __softirq_pending));
35
36 /* offsets into the thread struct */
37 OFFSET(THREAD_KSP, thread_struct, ksp);
38 OFFSET(THREAD_USP, thread_struct, usp);
39 OFFSET(THREAD_CCR, thread_struct, ccr);
40
41 /* offsets into the pt_regs struct */
42 DEFINE(LER0, offsetof(struct pt_regs, er0) - sizeof(long));
43 DEFINE(LER1, offsetof(struct pt_regs, er1) - sizeof(long));
44 DEFINE(LER2, offsetof(struct pt_regs, er2) - sizeof(long));
45 DEFINE(LER3, offsetof(struct pt_regs, er3) - sizeof(long));
46 DEFINE(LER4, offsetof(struct pt_regs, er4) - sizeof(long));
47 DEFINE(LER5, offsetof(struct pt_regs, er5) - sizeof(long));
48 DEFINE(LER6, offsetof(struct pt_regs, er6) - sizeof(long));
49 DEFINE(LORIG, offsetof(struct pt_regs, orig_er0) - sizeof(long));
50 DEFINE(LSP, offsetof(struct pt_regs, sp) - sizeof(long));
51 DEFINE(LCCR, offsetof(struct pt_regs, ccr) - sizeof(long));
52 DEFINE(LVEC, offsetof(struct pt_regs, vector) - sizeof(long));
53 #if defined(CONFIG_CPU_H8S)
54 DEFINE(LEXR, offsetof(struct pt_regs, exr) - sizeof(long));
55 #endif
56 DEFINE(LRET, offsetof(struct pt_regs, pc) - sizeof(long));
57
58 DEFINE(PT_PTRACED, PT_PTRACED);
59
60 /* offsets in thread_info structure */
61 OFFSET(TI_TASK, thread_info, task);
62 OFFSET(TI_FLAGS, thread_info, flags);
63 OFFSET(TI_CPU, thread_info, cpu);
64 OFFSET(TI_PRE, thread_info, preempt_count);
65 #ifdef CONFIG_PREEMPTION
66 DEFINE(TI_PRE_COUNT, offsetof(struct thread_info, preempt_count));
67 #endif
68
69 return 0;
70 }
71