CoCalc -- asm-offsets.c

GitHub Repository: torvalds/linux
Path: blob/master/arch/s390/kernel/asm-offsets.c
²⁶⁴³⁹ views
1
// SPDX-License-Identifier: GPL-2.0
2
/*
3
 * Generate definitions needed by assembly language modules.
4
 * This code generates raw asm output which is post-processed to extract
5
 * and format the required data.
6
 */
7

8
#include <linux/kbuild.h>
9
#include <linux/sched.h>
10
#include <linux/purgatory.h>
11
#include <linux/pgtable.h>
12
#include <linux/ftrace_regs.h>
13
#include <asm/kvm_host_types.h>
14
#include <asm/stacktrace.h>
15
#include <asm/ptrace.h>
16

17
int main(void)
18
{
19
	/* task struct offsets */
20
	OFFSET(__TASK_stack, task_struct, stack);
21
	OFFSET(__TASK_thread, task_struct, thread);
22
	OFFSET(__TASK_pid, task_struct, pid);
23
	BLANK();
24
	/* thread struct offsets */
25
	OFFSET(__THREAD_ksp, thread_struct, ksp);
26
	BLANK();
27
	/* thread info offsets */
28
	OFFSET(__TI_flags, task_struct, thread_info.flags);
29
	OFFSET(__TI_sie, task_struct, thread_info.sie);
30
	BLANK();
31
	/* pt_regs offsets */
32
	OFFSET(__PT_PSW, pt_regs, psw);
33
	OFFSET(__PT_GPRS, pt_regs, gprs);
34
	OFFSET(__PT_R0, pt_regs, gprs[0]);
35
	OFFSET(__PT_R1, pt_regs, gprs[1]);
36
	OFFSET(__PT_R2, pt_regs, gprs[2]);
37
	OFFSET(__PT_R3, pt_regs, gprs[3]);
38
	OFFSET(__PT_R4, pt_regs, gprs[4]);
39
	OFFSET(__PT_R5, pt_regs, gprs[5]);
40
	OFFSET(__PT_R6, pt_regs, gprs[6]);
41
	OFFSET(__PT_R7, pt_regs, gprs[7]);
42
	OFFSET(__PT_R8, pt_regs, gprs[8]);
43
	OFFSET(__PT_R9, pt_regs, gprs[9]);
44
	OFFSET(__PT_R10, pt_regs, gprs[10]);
45
	OFFSET(__PT_R11, pt_regs, gprs[11]);
46
	OFFSET(__PT_R12, pt_regs, gprs[12]);
47
	OFFSET(__PT_R13, pt_regs, gprs[13]);
48
	OFFSET(__PT_R14, pt_regs, gprs[14]);
49
	OFFSET(__PT_R15, pt_regs, gprs[15]);
50
	OFFSET(__PT_ORIG_GPR2, pt_regs, orig_gpr2);
51
	OFFSET(__PT_INT_CODE, pt_regs, int_code);
52
	OFFSET(__PT_FLAGS, pt_regs, flags);
53
	OFFSET(__PT_LAST_BREAK, pt_regs, last_break);
54
	DEFINE(__PT_SIZE, sizeof(struct pt_regs));
55
	BLANK();
56
	/* stack_frame offsets */
57
	OFFSET(__SF_BACKCHAIN, stack_frame, back_chain);
58
	OFFSET(__SF_GPRS, stack_frame, gprs);
59
	OFFSET(__SF_EMPTY, stack_frame, empty[0]);
60
	OFFSET(__SF_SIE_CONTROL, stack_frame, sie_control_block);
61
	OFFSET(__SF_SIE_SAVEAREA, stack_frame, sie_savearea);
62
	OFFSET(__SF_SIE_REASON, stack_frame, sie_reason);
63
	OFFSET(__SF_SIE_FLAGS, stack_frame, sie_flags);
64
	OFFSET(__SF_SIE_CONTROL_PHYS, stack_frame, sie_control_block_phys);
65
	OFFSET(__SF_SIE_GUEST_ASCE, stack_frame, sie_guest_asce);
66
	DEFINE(STACK_FRAME_OVERHEAD, sizeof(struct stack_frame));
67
	BLANK();
68
	OFFSET(__SFUSER_BACKCHAIN, stack_frame_user, back_chain);
69
	DEFINE(STACK_FRAME_USER_OVERHEAD, sizeof(struct stack_frame_user));
70
	OFFSET(__SFVDSO_RETURN_ADDRESS, stack_frame_vdso_wrapper, return_address);
71
	DEFINE(STACK_FRAME_VDSO_OVERHEAD, sizeof(struct stack_frame_vdso_wrapper));
72
	BLANK();
73
	/* hardware defined lowcore locations 0x000 - 0x1ff */
74
	OFFSET(__LC_EXT_PARAMS, lowcore, ext_params);
75
	OFFSET(__LC_EXT_CPU_ADDR, lowcore, ext_cpu_addr);
76
	OFFSET(__LC_EXT_INT_CODE, lowcore, ext_int_code);
77
	OFFSET(__LC_PGM_ILC, lowcore, pgm_ilc);
78
	OFFSET(__LC_PGM_CODE, lowcore, pgm_code);
79
	OFFSET(__LC_PGM_INT_CODE, lowcore, pgm_int_code);
80
	OFFSET(__LC_DATA_EXC_CODE, lowcore, data_exc_code);
81
	OFFSET(__LC_MON_CLASS_NR, lowcore, mon_class_num);
82
	OFFSET(__LC_PER_CODE, lowcore, per_code);
83
	OFFSET(__LC_PER_ATMID, lowcore, per_atmid);
84
	OFFSET(__LC_PER_ADDRESS, lowcore, per_address);
85
	OFFSET(__LC_EXC_ACCESS_ID, lowcore, exc_access_id);
86
	OFFSET(__LC_PER_ACCESS_ID, lowcore, per_access_id);
87
	OFFSET(__LC_OP_ACCESS_ID, lowcore, op_access_id);
88
	OFFSET(__LC_AR_MODE_ID, lowcore, ar_mode_id);
89
	OFFSET(__LC_TRANS_EXC_CODE, lowcore, trans_exc_code);
90
	OFFSET(__LC_MON_CODE, lowcore, monitor_code);
91
	OFFSET(__LC_SUBCHANNEL_ID, lowcore, subchannel_id);
92
	OFFSET(__LC_SUBCHANNEL_NR, lowcore, subchannel_nr);
93
	OFFSET(__LC_IO_INT_PARM, lowcore, io_int_parm);
94
	OFFSET(__LC_IO_INT_WORD, lowcore, io_int_word);
95
	OFFSET(__LC_MCCK_CODE, lowcore, mcck_interruption_code);
96
	OFFSET(__LC_EXT_DAMAGE_CODE, lowcore, external_damage_code);
97
	OFFSET(__LC_MCCK_FAIL_STOR_ADDR, lowcore, failing_storage_address);
98
	OFFSET(__LC_PGM_LAST_BREAK, lowcore, pgm_last_break);
99
	OFFSET(__LC_RETURN_LPSWE, lowcore, return_lpswe);
100
	OFFSET(__LC_RETURN_MCCK_LPSWE, lowcore, return_mcck_lpswe);
101
	OFFSET(__LC_RST_OLD_PSW, lowcore, restart_old_psw);
102
	OFFSET(__LC_EXT_OLD_PSW, lowcore, external_old_psw);
103
	OFFSET(__LC_SVC_OLD_PSW, lowcore, svc_old_psw);
104
	OFFSET(__LC_PGM_OLD_PSW, lowcore, program_old_psw);
105
	OFFSET(__LC_MCK_OLD_PSW, lowcore, mcck_old_psw);
106
	OFFSET(__LC_IO_OLD_PSW, lowcore, io_old_psw);
107
	OFFSET(__LC_RST_NEW_PSW, lowcore, restart_psw);
108
	OFFSET(__LC_EXT_NEW_PSW, lowcore, external_new_psw);
109
	OFFSET(__LC_SVC_NEW_PSW, lowcore, svc_new_psw);
110
	OFFSET(__LC_PGM_NEW_PSW, lowcore, program_new_psw);
111
	OFFSET(__LC_MCK_NEW_PSW, lowcore, mcck_new_psw);
112
	OFFSET(__LC_IO_NEW_PSW, lowcore, io_new_psw);
113
	/* software defined lowcore locations 0x200 - 0xdff*/
114
	OFFSET(__LC_SAVE_AREA, lowcore, save_area);
115
	OFFSET(__LC_SAVE_AREA_RESTART, lowcore, save_area_restart);
116
	OFFSET(__LC_PCPU, lowcore, pcpu);
117
	OFFSET(__LC_RETURN_PSW, lowcore, return_psw);
118
	OFFSET(__LC_RETURN_MCCK_PSW, lowcore, return_mcck_psw);
119
	OFFSET(__LC_SYS_ENTER_TIMER, lowcore, sys_enter_timer);
120
	OFFSET(__LC_MCCK_ENTER_TIMER, lowcore, mcck_enter_timer);
121
	OFFSET(__LC_EXIT_TIMER, lowcore, exit_timer);
122
	OFFSET(__LC_LAST_UPDATE_TIMER, lowcore, last_update_timer);
123
	OFFSET(__LC_LAST_UPDATE_CLOCK, lowcore, last_update_clock);
124
	OFFSET(__LC_INT_CLOCK, lowcore, int_clock);
125
	OFFSET(__LC_CURRENT, lowcore, current_task);
126
	OFFSET(__LC_KERNEL_STACK, lowcore, kernel_stack);
127
	OFFSET(__LC_ASYNC_STACK, lowcore, async_stack);
128
	OFFSET(__LC_NODAT_STACK, lowcore, nodat_stack);
129
	OFFSET(__LC_RESTART_STACK, lowcore, restart_stack);
130
	OFFSET(__LC_MCCK_STACK, lowcore, mcck_stack);
131
	OFFSET(__LC_RESTART_FN, lowcore, restart_fn);
132
	OFFSET(__LC_RESTART_DATA, lowcore, restart_data);
133
	OFFSET(__LC_RESTART_SOURCE, lowcore, restart_source);
134
	OFFSET(__LC_RESTART_FLAGS, lowcore, restart_flags);
135
	OFFSET(__LC_KERNEL_ASCE, lowcore, kernel_asce);
136
	OFFSET(__LC_USER_ASCE, lowcore, user_asce);
137
	OFFSET(__LC_LPP, lowcore, lpp);
138
	OFFSET(__LC_CURRENT_PID, lowcore, current_pid);
139
	OFFSET(__LC_LAST_BREAK, lowcore, last_break);
140
	/* software defined ABI-relevant lowcore locations 0xe00 - 0xe20 */
141
	OFFSET(__LC_DUMP_REIPL, lowcore, ipib);
142
	OFFSET(__LC_VMCORE_INFO, lowcore, vmcore_info);
143
	OFFSET(__LC_OS_INFO, lowcore, os_info);
144
	/* hardware defined lowcore locations 0x1000 - 0x18ff */
145
	OFFSET(__LC_MCESAD, lowcore, mcesad);
146
	OFFSET(__LC_EXT_PARAMS2, lowcore, ext_params2);
147
	OFFSET(__LC_FPREGS_SAVE_AREA, lowcore, floating_pt_save_area);
148
	OFFSET(__LC_GPREGS_SAVE_AREA, lowcore, gpregs_save_area);
149
	OFFSET(__LC_PSW_SAVE_AREA, lowcore, psw_save_area);
150
	OFFSET(__LC_PREFIX_SAVE_AREA, lowcore, prefixreg_save_area);
151
	OFFSET(__LC_FP_CREG_SAVE_AREA, lowcore, fpt_creg_save_area);
152
	OFFSET(__LC_TOD_PROGREG_SAVE_AREA, lowcore, tod_progreg_save_area);
153
	OFFSET(__LC_CPU_TIMER_SAVE_AREA, lowcore, cpu_timer_save_area);
154
	OFFSET(__LC_CLOCK_COMP_SAVE_AREA, lowcore, clock_comp_save_area);
155
	OFFSET(__LC_LAST_BREAK_SAVE_AREA, lowcore, last_break_save_area);
156
	OFFSET(__LC_AREGS_SAVE_AREA, lowcore, access_regs_save_area);
157
	OFFSET(__LC_CREGS_SAVE_AREA, lowcore, cregs_save_area);
158
	OFFSET(__LC_PGM_TDB, lowcore, pgm_tdb);
159
	BLANK();
160
	/* gmap/sie offsets */
161
	OFFSET(__SIE_PROG0C, kvm_s390_sie_block, prog0c);
162
	OFFSET(__SIE_PROG20, kvm_s390_sie_block, prog20);
163
	/* kexec_sha_region */
164
	OFFSET(__KEXEC_SHA_REGION_START, kexec_sha_region, start);
165
	OFFSET(__KEXEC_SHA_REGION_LEN, kexec_sha_region, len);
166
	DEFINE(__KEXEC_SHA_REGION_SIZE, sizeof(struct kexec_sha_region));
167
	/* sizeof kernel parameter area */
168
	DEFINE(__PARMAREA_SIZE, sizeof(struct parmarea));
169
	/* kernel parameter area offsets */
170
	DEFINE(IPL_DEVICE, PARMAREA + offsetof(struct parmarea, ipl_device));
171
	DEFINE(INITRD_START, PARMAREA + offsetof(struct parmarea, initrd_start));
172
	DEFINE(INITRD_SIZE, PARMAREA + offsetof(struct parmarea, initrd_size));
173
	DEFINE(OLDMEM_BASE, PARMAREA + offsetof(struct parmarea, oldmem_base));
174
	DEFINE(OLDMEM_SIZE, PARMAREA + offsetof(struct parmarea, oldmem_size));
175
	DEFINE(COMMAND_LINE, PARMAREA + offsetof(struct parmarea, command_line));
176
	DEFINE(MAX_COMMAND_LINE_SIZE, PARMAREA + offsetof(struct parmarea, max_command_line_size));
177
	OFFSET(__FTRACE_REGS_PT_REGS, __arch_ftrace_regs, regs);
178
	DEFINE(__FTRACE_REGS_SIZE, sizeof(struct __arch_ftrace_regs));
179

180
	OFFSET(__PCPU_FLAGS, pcpu, flags);
181
	return 0;
182
}
183

184
Product

Resources

Company
