Greg Kroah-Hartman | b244131 | 2017-11-01 15:07:57 +0100 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0 |
Yoshinori Sato | 4e0c209 | 2015-01-28 02:46:20 +0900 | [diff] [blame] | 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 | |
| 21 | int main(void) |
| 22 | { |
| 23 | /* offsets into the task struct */ |
Yoshinori Sato | 4e0c209 | 2015-01-28 02:46:20 +0900 | [diff] [blame] | 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); |
Randy Dunlap | ade9679 | 2021-02-12 20:52:54 -0800 | [diff] [blame] | 65 | #ifdef CONFIG_PREEMPTION |
| 66 | DEFINE(TI_PRE_COUNT, offsetof(struct thread_info, preempt_count)); |
| 67 | #endif |
Yoshinori Sato | 4e0c209 | 2015-01-28 02:46:20 +0900 | [diff] [blame] | 68 | |
| 69 | return 0; |
| 70 | } |