xref: /openbmc/linux/arch/s390/kernel/asm-offsets.c (revision 5d4a2e29)
1 /*
2  * Generate definitions needed by assembly language modules.
3  * This code generates raw asm output which is post-processed to extract
4  * and format the required data.
5  */
6 
7 #define ASM_OFFSETS_C
8 
9 #include <linux/kbuild.h>
10 #include <linux/sched.h>
11 #include <asm/vdso.h>
12 #include <asm/sigp.h>
13 
14 /*
15  * Make sure that the compiler is new enough. We want a compiler that
16  * is known to work with the "Q" assembler constraint.
17  */
18 #if __GNUC__ < 3 || (__GNUC__ == 3 && __GNUC_MINOR__ < 3)
19 #error Your compiler is too old; please use version 3.3.3 or newer
20 #endif
21 
22 int main(void)
23 {
24 	DEFINE(__THREAD_info, offsetof(struct task_struct, stack));
25 	DEFINE(__THREAD_ksp, offsetof(struct task_struct, thread.ksp));
26 	DEFINE(__THREAD_per, offsetof(struct task_struct, thread.per_info));
27 	DEFINE(__THREAD_mm_segment, offsetof(struct task_struct, thread.mm_segment));
28 	BLANK();
29 	DEFINE(__TASK_pid, offsetof(struct task_struct, pid));
30 	BLANK();
31 	DEFINE(__PER_atmid, offsetof(per_struct, lowcore.words.perc_atmid));
32 	DEFINE(__PER_address, offsetof(per_struct, lowcore.words.address));
33 	DEFINE(__PER_access_id, offsetof(per_struct, lowcore.words.access_id));
34 	BLANK();
35 	DEFINE(__TI_task, offsetof(struct thread_info, task));
36 	DEFINE(__TI_domain, offsetof(struct thread_info, exec_domain));
37 	DEFINE(__TI_flags, offsetof(struct thread_info, flags));
38 	DEFINE(__TI_cpu, offsetof(struct thread_info, cpu));
39 	DEFINE(__TI_precount, offsetof(struct thread_info, preempt_count));
40 	DEFINE(__TI_user_timer, offsetof(struct thread_info, user_timer));
41 	DEFINE(__TI_system_timer, offsetof(struct thread_info, system_timer));
42 	DEFINE(__TI_last_break, offsetof(struct thread_info, last_break));
43 	BLANK();
44 	DEFINE(__PT_ARGS, offsetof(struct pt_regs, args));
45 	DEFINE(__PT_PSW, offsetof(struct pt_regs, psw));
46 	DEFINE(__PT_GPRS, offsetof(struct pt_regs, gprs));
47 	DEFINE(__PT_ORIG_GPR2, offsetof(struct pt_regs, orig_gpr2));
48 	DEFINE(__PT_ILC, offsetof(struct pt_regs, ilc));
49 	DEFINE(__PT_SVCNR, offsetof(struct pt_regs, svcnr));
50 	DEFINE(__PT_SIZE, sizeof(struct pt_regs));
51 	BLANK();
52 	DEFINE(__SF_BACKCHAIN, offsetof(struct stack_frame, back_chain));
53 	DEFINE(__SF_GPRS, offsetof(struct stack_frame, gprs));
54 	DEFINE(__SF_EMPTY, offsetof(struct stack_frame, empty1));
55 	BLANK();
56 	/* timeval/timezone offsets for use by vdso */
57 	DEFINE(__VDSO_UPD_COUNT, offsetof(struct vdso_data, tb_update_count));
58 	DEFINE(__VDSO_XTIME_STAMP, offsetof(struct vdso_data, xtime_tod_stamp));
59 	DEFINE(__VDSO_XTIME_SEC, offsetof(struct vdso_data, xtime_clock_sec));
60 	DEFINE(__VDSO_XTIME_NSEC, offsetof(struct vdso_data, xtime_clock_nsec));
61 	DEFINE(__VDSO_WTOM_SEC, offsetof(struct vdso_data, wtom_clock_sec));
62 	DEFINE(__VDSO_WTOM_NSEC, offsetof(struct vdso_data, wtom_clock_nsec));
63 	DEFINE(__VDSO_TIMEZONE, offsetof(struct vdso_data, tz_minuteswest));
64 	DEFINE(__VDSO_ECTG_OK, offsetof(struct vdso_data, ectg_available));
65 	DEFINE(__VDSO_NTP_MULT, offsetof(struct vdso_data, ntp_mult));
66 	DEFINE(__VDSO_ECTG_BASE, offsetof(struct vdso_per_cpu_data, ectg_timer_base));
67 	DEFINE(__VDSO_ECTG_USER, offsetof(struct vdso_per_cpu_data, ectg_user_time));
68 	/* constants used by the vdso */
69 	DEFINE(CLOCK_REALTIME, CLOCK_REALTIME);
70 	DEFINE(CLOCK_MONOTONIC, CLOCK_MONOTONIC);
71 	DEFINE(CLOCK_REALTIME_RES, MONOTONIC_RES_NSEC);
72 	BLANK();
73 	/* constants for SIGP */
74 	DEFINE(__SIGP_STOP, sigp_stop);
75 	DEFINE(__SIGP_RESTART, sigp_restart);
76 	DEFINE(__SIGP_SENSE, sigp_sense);
77 	DEFINE(__SIGP_INITIAL_CPU_RESET, sigp_initial_cpu_reset);
78 	BLANK();
79 	/* lowcore offsets */
80 	DEFINE(__LC_EXT_PARAMS, offsetof(struct _lowcore, ext_params));
81 	DEFINE(__LC_CPU_ADDRESS, offsetof(struct _lowcore, cpu_addr));
82 	DEFINE(__LC_EXT_INT_CODE, offsetof(struct _lowcore, ext_int_code));
83 	DEFINE(__LC_SVC_ILC, offsetof(struct _lowcore, svc_ilc));
84 	DEFINE(__LC_SVC_INT_CODE, offsetof(struct _lowcore, svc_code));
85 	DEFINE(__LC_PGM_ILC, offsetof(struct _lowcore, pgm_ilc));
86 	DEFINE(__LC_PGM_INT_CODE, offsetof(struct _lowcore, pgm_code));
87 	DEFINE(__LC_PER_ATMID, offsetof(struct _lowcore, per_perc_atmid));
88 	DEFINE(__LC_PER_ADDRESS, offsetof(struct _lowcore, per_address));
89 	DEFINE(__LC_PER_ACCESS_ID, offsetof(struct _lowcore, per_access_id));
90 	DEFINE(__LC_AR_MODE_ID, offsetof(struct _lowcore, ar_access_id));
91 	DEFINE(__LC_SUBCHANNEL_ID, offsetof(struct _lowcore, subchannel_id));
92 	DEFINE(__LC_SUBCHANNEL_NR, offsetof(struct _lowcore, subchannel_nr));
93 	DEFINE(__LC_IO_INT_PARM, offsetof(struct _lowcore, io_int_parm));
94 	DEFINE(__LC_IO_INT_WORD, offsetof(struct _lowcore, io_int_word));
95 	DEFINE(__LC_STFL_FAC_LIST, offsetof(struct _lowcore, stfl_fac_list));
96 	DEFINE(__LC_MCCK_CODE, offsetof(struct _lowcore, mcck_interruption_code));
97 	DEFINE(__LC_DUMP_REIPL, offsetof(struct _lowcore, ipib));
98 	BLANK();
99 	DEFINE(__LC_RST_NEW_PSW, offsetof(struct _lowcore, restart_psw));
100 	DEFINE(__LC_RST_OLD_PSW, offsetof(struct _lowcore, restart_old_psw));
101 	DEFINE(__LC_EXT_OLD_PSW, offsetof(struct _lowcore, external_old_psw));
102 	DEFINE(__LC_SVC_OLD_PSW, offsetof(struct _lowcore, svc_old_psw));
103 	DEFINE(__LC_PGM_OLD_PSW, offsetof(struct _lowcore, program_old_psw));
104 	DEFINE(__LC_MCK_OLD_PSW, offsetof(struct _lowcore, mcck_old_psw));
105 	DEFINE(__LC_IO_OLD_PSW, offsetof(struct _lowcore, io_old_psw));
106 	DEFINE(__LC_EXT_NEW_PSW, offsetof(struct _lowcore, external_new_psw));
107 	DEFINE(__LC_SVC_NEW_PSW, offsetof(struct _lowcore, svc_new_psw));
108 	DEFINE(__LC_PGM_NEW_PSW, offsetof(struct _lowcore, program_new_psw));
109 	DEFINE(__LC_MCK_NEW_PSW, offsetof(struct _lowcore, mcck_new_psw));
110 	DEFINE(__LC_IO_NEW_PSW, offsetof(struct _lowcore, io_new_psw));
111 	DEFINE(__LC_SAVE_AREA, offsetof(struct _lowcore, save_area));
112 	DEFINE(__LC_RETURN_PSW, offsetof(struct _lowcore, return_psw));
113 	DEFINE(__LC_RETURN_MCCK_PSW, offsetof(struct _lowcore, return_mcck_psw));
114 	DEFINE(__LC_SYNC_ENTER_TIMER, offsetof(struct _lowcore, sync_enter_timer));
115 	DEFINE(__LC_ASYNC_ENTER_TIMER, offsetof(struct _lowcore, async_enter_timer));
116 	DEFINE(__LC_MCCK_ENTER_TIMER, offsetof(struct _lowcore, mcck_enter_timer));
117 	DEFINE(__LC_EXIT_TIMER, offsetof(struct _lowcore, exit_timer));
118 	DEFINE(__LC_USER_TIMER, offsetof(struct _lowcore, user_timer));
119 	DEFINE(__LC_SYSTEM_TIMER, offsetof(struct _lowcore, system_timer));
120 	DEFINE(__LC_STEAL_TIMER, offsetof(struct _lowcore, steal_timer));
121 	DEFINE(__LC_LAST_UPDATE_TIMER, offsetof(struct _lowcore, last_update_timer));
122 	DEFINE(__LC_LAST_UPDATE_CLOCK, offsetof(struct _lowcore, last_update_clock));
123 	DEFINE(__LC_CURRENT, offsetof(struct _lowcore, current_task));
124 	DEFINE(__LC_THREAD_INFO, offsetof(struct _lowcore, thread_info));
125 	DEFINE(__LC_KERNEL_STACK, offsetof(struct _lowcore, kernel_stack));
126 	DEFINE(__LC_ASYNC_STACK, offsetof(struct _lowcore, async_stack));
127 	DEFINE(__LC_PANIC_STACK, offsetof(struct _lowcore, panic_stack));
128 	DEFINE(__LC_KERNEL_ASCE, offsetof(struct _lowcore, kernel_asce));
129 	DEFINE(__LC_USER_ASCE, offsetof(struct _lowcore, user_asce));
130 	DEFINE(__LC_USER_EXEC_ASCE, offsetof(struct _lowcore, user_exec_asce));
131 	DEFINE(__LC_INT_CLOCK, offsetof(struct _lowcore, int_clock));
132 	DEFINE(__LC_MCCK_CLOCK, offsetof(struct _lowcore, mcck_clock));
133 	DEFINE(__LC_MACHINE_FLAGS, offsetof(struct _lowcore, machine_flags));
134 	DEFINE(__LC_FTRACE_FUNC, offsetof(struct _lowcore, ftrace_func));
135 	DEFINE(__LC_IRB, offsetof(struct _lowcore, irb));
136 	DEFINE(__LC_CPU_TIMER_SAVE_AREA, offsetof(struct _lowcore, cpu_timer_save_area));
137 	DEFINE(__LC_CLOCK_COMP_SAVE_AREA, offsetof(struct _lowcore, clock_comp_save_area));
138 	DEFINE(__LC_PSW_SAVE_AREA, offsetof(struct _lowcore, psw_save_area));
139 	DEFINE(__LC_PREFIX_SAVE_AREA, offsetof(struct _lowcore, prefixreg_save_area));
140 	DEFINE(__LC_AREGS_SAVE_AREA, offsetof(struct _lowcore, access_regs_save_area));
141 	DEFINE(__LC_FPREGS_SAVE_AREA, offsetof(struct _lowcore, floating_pt_save_area));
142 	DEFINE(__LC_GPREGS_SAVE_AREA, offsetof(struct _lowcore, gpregs_save_area));
143 	DEFINE(__LC_CREGS_SAVE_AREA, offsetof(struct _lowcore, cregs_save_area));
144 #ifdef CONFIG_32BIT
145 	DEFINE(__LC_PFAULT_INTPARM, offsetof(struct _lowcore, ext_params));
146 	DEFINE(SAVE_AREA_BASE, offsetof(struct _lowcore, extended_save_area_addr));
147 #else /* CONFIG_32BIT */
148 	DEFINE(__LC_PFAULT_INTPARM, offsetof(struct _lowcore, ext_params2));
149 	DEFINE(__LC_EXT_PARAMS2, offsetof(struct _lowcore, ext_params2));
150 	DEFINE(SAVE_AREA_BASE, offsetof(struct _lowcore, floating_pt_save_area));
151 	DEFINE(__LC_PASTE, offsetof(struct _lowcore, paste));
152 	DEFINE(__LC_FP_CREG_SAVE_AREA, offsetof(struct _lowcore, fpt_creg_save_area));
153 	DEFINE(__LC_LAST_BREAK, offsetof(struct _lowcore, breaking_event_addr));
154 	DEFINE(__LC_VDSO_PER_CPU, offsetof(struct _lowcore, vdso_per_cpu_data));
155 	DEFINE(__LC_SIE_HOOK, offsetof(struct _lowcore, sie_hook));
156 	DEFINE(__LC_CMF_HPP, offsetof(struct _lowcore, cmf_hpp));
157 #endif /* CONFIG_32BIT */
158 	return 0;
159 }
160