xref: /openbmc/linux/arch/mips/kernel/asm-offsets.c (revision 22246614)
1 /*
2  * offset.c: Calculate pt_regs and task_struct offsets.
3  *
4  * Copyright (C) 1996 David S. Miller
5  * Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003 Ralf Baechle
6  * Copyright (C) 1999, 2000 Silicon Graphics, Inc.
7  *
8  * Kevin Kissell, kevink@mips.com and Carsten Langgaard, carstenl@mips.com
9  * Copyright (C) 2000 MIPS Technologies, Inc.
10  */
11 #include <linux/compat.h>
12 #include <linux/types.h>
13 #include <linux/sched.h>
14 #include <linux/mm.h>
15 #include <linux/interrupt.h>
16 #include <linux/kbuild.h>
17 #include <asm/ptrace.h>
18 #include <asm/processor.h>
19 
20 void output_ptreg_defines(void)
21 {
22 	COMMENT("MIPS pt_regs offsets.");
23 	OFFSET(PT_R0, pt_regs, regs[0]);
24 	OFFSET(PT_R1, pt_regs, regs[1]);
25 	OFFSET(PT_R2, pt_regs, regs[2]);
26 	OFFSET(PT_R3, pt_regs, regs[3]);
27 	OFFSET(PT_R4, pt_regs, regs[4]);
28 	OFFSET(PT_R5, pt_regs, regs[5]);
29 	OFFSET(PT_R6, pt_regs, regs[6]);
30 	OFFSET(PT_R7, pt_regs, regs[7]);
31 	OFFSET(PT_R8, pt_regs, regs[8]);
32 	OFFSET(PT_R9, pt_regs, regs[9]);
33 	OFFSET(PT_R10, pt_regs, regs[10]);
34 	OFFSET(PT_R11, pt_regs, regs[11]);
35 	OFFSET(PT_R12, pt_regs, regs[12]);
36 	OFFSET(PT_R13, pt_regs, regs[13]);
37 	OFFSET(PT_R14, pt_regs, regs[14]);
38 	OFFSET(PT_R15, pt_regs, regs[15]);
39 	OFFSET(PT_R16, pt_regs, regs[16]);
40 	OFFSET(PT_R17, pt_regs, regs[17]);
41 	OFFSET(PT_R18, pt_regs, regs[18]);
42 	OFFSET(PT_R19, pt_regs, regs[19]);
43 	OFFSET(PT_R20, pt_regs, regs[20]);
44 	OFFSET(PT_R21, pt_regs, regs[21]);
45 	OFFSET(PT_R22, pt_regs, regs[22]);
46 	OFFSET(PT_R23, pt_regs, regs[23]);
47 	OFFSET(PT_R24, pt_regs, regs[24]);
48 	OFFSET(PT_R25, pt_regs, regs[25]);
49 	OFFSET(PT_R26, pt_regs, regs[26]);
50 	OFFSET(PT_R27, pt_regs, regs[27]);
51 	OFFSET(PT_R28, pt_regs, regs[28]);
52 	OFFSET(PT_R29, pt_regs, regs[29]);
53 	OFFSET(PT_R30, pt_regs, regs[30]);
54 	OFFSET(PT_R31, pt_regs, regs[31]);
55 	OFFSET(PT_LO, pt_regs, lo);
56 	OFFSET(PT_HI, pt_regs, hi);
57 #ifdef CONFIG_CPU_HAS_SMARTMIPS
58 	OFFSET(PT_ACX, pt_regs, acx);
59 #endif
60 	OFFSET(PT_EPC, pt_regs, cp0_epc);
61 	OFFSET(PT_BVADDR, pt_regs, cp0_badvaddr);
62 	OFFSET(PT_STATUS, pt_regs, cp0_status);
63 	OFFSET(PT_CAUSE, pt_regs, cp0_cause);
64 #ifdef CONFIG_MIPS_MT_SMTC
65 	OFFSET(PT_TCSTATUS, pt_regs, cp0_tcstatus);
66 #endif /* CONFIG_MIPS_MT_SMTC */
67 	DEFINE(PT_SIZE, sizeof(struct pt_regs));
68 	BLANK();
69 }
70 
71 void output_task_defines(void)
72 {
73 	COMMENT("MIPS task_struct offsets.");
74 	OFFSET(TASK_STATE, task_struct, state);
75 	OFFSET(TASK_THREAD_INFO, task_struct, stack);
76 	OFFSET(TASK_FLAGS, task_struct, flags);
77 	OFFSET(TASK_MM, task_struct, mm);
78 	OFFSET(TASK_PID, task_struct, pid);
79 	DEFINE(TASK_STRUCT_SIZE, sizeof(struct task_struct));
80 	BLANK();
81 }
82 
83 void output_thread_info_defines(void)
84 {
85 	COMMENT("MIPS thread_info offsets.");
86 	OFFSET(TI_TASK, thread_info, task);
87 	OFFSET(TI_EXEC_DOMAIN, thread_info, exec_domain);
88 	OFFSET(TI_FLAGS, thread_info, flags);
89 	OFFSET(TI_TP_VALUE, thread_info, tp_value);
90 	OFFSET(TI_CPU, thread_info, cpu);
91 	OFFSET(TI_PRE_COUNT, thread_info, preempt_count);
92 	OFFSET(TI_ADDR_LIMIT, thread_info, addr_limit);
93 	OFFSET(TI_RESTART_BLOCK, thread_info, restart_block);
94 	OFFSET(TI_REGS, thread_info, regs);
95 	DEFINE(_THREAD_SIZE, THREAD_SIZE);
96 	DEFINE(_THREAD_MASK, THREAD_MASK);
97 	BLANK();
98 }
99 
100 void output_thread_defines(void)
101 {
102 	COMMENT("MIPS specific thread_struct offsets.");
103 	OFFSET(THREAD_REG16, task_struct, thread.reg16);
104 	OFFSET(THREAD_REG17, task_struct, thread.reg17);
105 	OFFSET(THREAD_REG18, task_struct, thread.reg18);
106 	OFFSET(THREAD_REG19, task_struct, thread.reg19);
107 	OFFSET(THREAD_REG20, task_struct, thread.reg20);
108 	OFFSET(THREAD_REG21, task_struct, thread.reg21);
109 	OFFSET(THREAD_REG22, task_struct, thread.reg22);
110 	OFFSET(THREAD_REG23, task_struct, thread.reg23);
111 	OFFSET(THREAD_REG29, task_struct, thread.reg29);
112 	OFFSET(THREAD_REG30, task_struct, thread.reg30);
113 	OFFSET(THREAD_REG31, task_struct, thread.reg31);
114 	OFFSET(THREAD_STATUS, task_struct,
115 	       thread.cp0_status);
116 	OFFSET(THREAD_FPU, task_struct, thread.fpu);
117 
118 	OFFSET(THREAD_BVADDR, task_struct, \
119 	       thread.cp0_badvaddr);
120 	OFFSET(THREAD_BUADDR, task_struct, \
121 	       thread.cp0_baduaddr);
122 	OFFSET(THREAD_ECODE, task_struct, \
123 	       thread.error_code);
124 	OFFSET(THREAD_TRAPNO, task_struct, thread.trap_no);
125 	OFFSET(THREAD_TRAMP, task_struct, \
126 	       thread.irix_trampoline);
127 	OFFSET(THREAD_OLDCTX, task_struct, \
128 	       thread.irix_oldctx);
129 	BLANK();
130 }
131 
132 void output_thread_fpu_defines(void)
133 {
134 	OFFSET(THREAD_FPR0, task_struct, thread.fpu.fpr[0]);
135 	OFFSET(THREAD_FPR1, task_struct, thread.fpu.fpr[1]);
136 	OFFSET(THREAD_FPR2, task_struct, thread.fpu.fpr[2]);
137 	OFFSET(THREAD_FPR3, task_struct, thread.fpu.fpr[3]);
138 	OFFSET(THREAD_FPR4, task_struct, thread.fpu.fpr[4]);
139 	OFFSET(THREAD_FPR5, task_struct, thread.fpu.fpr[5]);
140 	OFFSET(THREAD_FPR6, task_struct, thread.fpu.fpr[6]);
141 	OFFSET(THREAD_FPR7, task_struct, thread.fpu.fpr[7]);
142 	OFFSET(THREAD_FPR8, task_struct, thread.fpu.fpr[8]);
143 	OFFSET(THREAD_FPR9, task_struct, thread.fpu.fpr[9]);
144 	OFFSET(THREAD_FPR10, task_struct, thread.fpu.fpr[10]);
145 	OFFSET(THREAD_FPR11, task_struct, thread.fpu.fpr[11]);
146 	OFFSET(THREAD_FPR12, task_struct, thread.fpu.fpr[12]);
147 	OFFSET(THREAD_FPR13, task_struct, thread.fpu.fpr[13]);
148 	OFFSET(THREAD_FPR14, task_struct, thread.fpu.fpr[14]);
149 	OFFSET(THREAD_FPR15, task_struct, thread.fpu.fpr[15]);
150 	OFFSET(THREAD_FPR16, task_struct, thread.fpu.fpr[16]);
151 	OFFSET(THREAD_FPR17, task_struct, thread.fpu.fpr[17]);
152 	OFFSET(THREAD_FPR18, task_struct, thread.fpu.fpr[18]);
153 	OFFSET(THREAD_FPR19, task_struct, thread.fpu.fpr[19]);
154 	OFFSET(THREAD_FPR20, task_struct, thread.fpu.fpr[20]);
155 	OFFSET(THREAD_FPR21, task_struct, thread.fpu.fpr[21]);
156 	OFFSET(THREAD_FPR22, task_struct, thread.fpu.fpr[22]);
157 	OFFSET(THREAD_FPR23, task_struct, thread.fpu.fpr[23]);
158 	OFFSET(THREAD_FPR24, task_struct, thread.fpu.fpr[24]);
159 	OFFSET(THREAD_FPR25, task_struct, thread.fpu.fpr[25]);
160 	OFFSET(THREAD_FPR26, task_struct, thread.fpu.fpr[26]);
161 	OFFSET(THREAD_FPR27, task_struct, thread.fpu.fpr[27]);
162 	OFFSET(THREAD_FPR28, task_struct, thread.fpu.fpr[28]);
163 	OFFSET(THREAD_FPR29, task_struct, thread.fpu.fpr[29]);
164 	OFFSET(THREAD_FPR30, task_struct, thread.fpu.fpr[30]);
165 	OFFSET(THREAD_FPR31, task_struct, thread.fpu.fpr[31]);
166 
167 	OFFSET(THREAD_FCR31, task_struct, thread.fpu.fcr31);
168 	BLANK();
169 }
170 
171 void output_mm_defines(void)
172 {
173 	COMMENT("Size of struct page");
174 	DEFINE(STRUCT_PAGE_SIZE, sizeof(struct page));
175 	BLANK();
176 	COMMENT("Linux mm_struct offsets.");
177 	OFFSET(MM_USERS, mm_struct, mm_users);
178 	OFFSET(MM_PGD, mm_struct, pgd);
179 	OFFSET(MM_CONTEXT, mm_struct, context);
180 	BLANK();
181 	DEFINE(_PAGE_SIZE, PAGE_SIZE);
182 	DEFINE(_PAGE_SHIFT, PAGE_SHIFT);
183 	BLANK();
184 	DEFINE(_PGD_T_SIZE, sizeof(pgd_t));
185 	DEFINE(_PMD_T_SIZE, sizeof(pmd_t));
186 	DEFINE(_PTE_T_SIZE, sizeof(pte_t));
187 	BLANK();
188 	DEFINE(_PGD_T_LOG2, PGD_T_LOG2);
189 	DEFINE(_PMD_T_LOG2, PMD_T_LOG2);
190 	DEFINE(_PTE_T_LOG2, PTE_T_LOG2);
191 	BLANK();
192 	DEFINE(_PGD_ORDER, PGD_ORDER);
193 	DEFINE(_PMD_ORDER, PMD_ORDER);
194 	DEFINE(_PTE_ORDER, PTE_ORDER);
195 	BLANK();
196 	DEFINE(_PMD_SHIFT, PMD_SHIFT);
197 	DEFINE(_PGDIR_SHIFT, PGDIR_SHIFT);
198 	BLANK();
199 	DEFINE(_PTRS_PER_PGD, PTRS_PER_PGD);
200 	DEFINE(_PTRS_PER_PMD, PTRS_PER_PMD);
201 	DEFINE(_PTRS_PER_PTE, PTRS_PER_PTE);
202 	BLANK();
203 }
204 
205 #ifdef CONFIG_32BIT
206 void output_sc_defines(void)
207 {
208 	COMMENT("Linux sigcontext offsets.");
209 	OFFSET(SC_REGS, sigcontext, sc_regs);
210 	OFFSET(SC_FPREGS, sigcontext, sc_fpregs);
211 	OFFSET(SC_ACX, sigcontext, sc_acx);
212 	OFFSET(SC_MDHI, sigcontext, sc_mdhi);
213 	OFFSET(SC_MDLO, sigcontext, sc_mdlo);
214 	OFFSET(SC_PC, sigcontext, sc_pc);
215 	OFFSET(SC_FPC_CSR, sigcontext, sc_fpc_csr);
216 	OFFSET(SC_FPC_EIR, sigcontext, sc_fpc_eir);
217 	OFFSET(SC_HI1, sigcontext, sc_hi1);
218 	OFFSET(SC_LO1, sigcontext, sc_lo1);
219 	OFFSET(SC_HI2, sigcontext, sc_hi2);
220 	OFFSET(SC_LO2, sigcontext, sc_lo2);
221 	OFFSET(SC_HI3, sigcontext, sc_hi3);
222 	OFFSET(SC_LO3, sigcontext, sc_lo3);
223 	BLANK();
224 }
225 #endif
226 
227 #ifdef CONFIG_64BIT
228 void output_sc_defines(void)
229 {
230 	COMMENT("Linux sigcontext offsets.");
231 	OFFSET(SC_REGS, sigcontext, sc_regs);
232 	OFFSET(SC_FPREGS, sigcontext, sc_fpregs);
233 	OFFSET(SC_MDHI, sigcontext, sc_mdhi);
234 	OFFSET(SC_MDLO, sigcontext, sc_mdlo);
235 	OFFSET(SC_PC, sigcontext, sc_pc);
236 	OFFSET(SC_FPC_CSR, sigcontext, sc_fpc_csr);
237 	BLANK();
238 }
239 #endif
240 
241 #ifdef CONFIG_MIPS32_COMPAT
242 void output_sc32_defines(void)
243 {
244 	COMMENT("Linux 32-bit sigcontext offsets.");
245 	OFFSET(SC32_FPREGS, sigcontext32, sc_fpregs);
246 	OFFSET(SC32_FPC_CSR, sigcontext32, sc_fpc_csr);
247 	OFFSET(SC32_FPC_EIR, sigcontext32, sc_fpc_eir);
248 	BLANK();
249 }
250 #endif
251 
252 void output_signal_defined(void)
253 {
254 	COMMENT("Linux signal numbers.");
255 	DEFINE(_SIGHUP, SIGHUP);
256 	DEFINE(_SIGINT, SIGINT);
257 	DEFINE(_SIGQUIT, SIGQUIT);
258 	DEFINE(_SIGILL, SIGILL);
259 	DEFINE(_SIGTRAP, SIGTRAP);
260 	DEFINE(_SIGIOT, SIGIOT);
261 	DEFINE(_SIGABRT, SIGABRT);
262 	DEFINE(_SIGEMT, SIGEMT);
263 	DEFINE(_SIGFPE, SIGFPE);
264 	DEFINE(_SIGKILL, SIGKILL);
265 	DEFINE(_SIGBUS, SIGBUS);
266 	DEFINE(_SIGSEGV, SIGSEGV);
267 	DEFINE(_SIGSYS, SIGSYS);
268 	DEFINE(_SIGPIPE, SIGPIPE);
269 	DEFINE(_SIGALRM, SIGALRM);
270 	DEFINE(_SIGTERM, SIGTERM);
271 	DEFINE(_SIGUSR1, SIGUSR1);
272 	DEFINE(_SIGUSR2, SIGUSR2);
273 	DEFINE(_SIGCHLD, SIGCHLD);
274 	DEFINE(_SIGPWR, SIGPWR);
275 	DEFINE(_SIGWINCH, SIGWINCH);
276 	DEFINE(_SIGURG, SIGURG);
277 	DEFINE(_SIGIO, SIGIO);
278 	DEFINE(_SIGSTOP, SIGSTOP);
279 	DEFINE(_SIGTSTP, SIGTSTP);
280 	DEFINE(_SIGCONT, SIGCONT);
281 	DEFINE(_SIGTTIN, SIGTTIN);
282 	DEFINE(_SIGTTOU, SIGTTOU);
283 	DEFINE(_SIGVTALRM, SIGVTALRM);
284 	DEFINE(_SIGPROF, SIGPROF);
285 	DEFINE(_SIGXCPU, SIGXCPU);
286 	DEFINE(_SIGXFSZ, SIGXFSZ);
287 	BLANK();
288 }
289 
290 void output_irq_cpustat_t_defines(void)
291 {
292 	COMMENT("Linux irq_cpustat_t offsets.");
293 	DEFINE(IC_SOFTIRQ_PENDING,
294 			offsetof(irq_cpustat_t, __softirq_pending));
295 	DEFINE(IC_IRQ_CPUSTAT_T, sizeof(irq_cpustat_t));
296 	BLANK();
297 }
298