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1da177e4 LT |
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/config.h> | |
12 | #include <linux/compat.h> | |
13 | #include <linux/types.h> | |
14 | #include <linux/sched.h> | |
15 | #include <linux/mm.h> | |
16 | #include <linux/interrupt.h> | |
17 | ||
18 | #include <asm/ptrace.h> | |
19 | #include <asm/processor.h> | |
20 | ||
21 | #define text(t) __asm__("\n@@@" t) | |
22 | #define _offset(type, member) (&(((type *)NULL)->member)) | |
23 | #define offset(string, ptr, member) \ | |
24 | __asm__("\n@@@" string "%0" : : "i" (_offset(ptr, member))) | |
25 | #define constant(string, member) \ | |
26 | __asm__("\n@@@" string "%x0" : : "ri" (member)) | |
27 | #define size(string, size) \ | |
28 | __asm__("\n@@@" string "%0" : : "i" (sizeof(size))) | |
29 | #define linefeed text("") | |
30 | ||
31 | void output_ptreg_defines(void) | |
32 | { | |
33 | text("/* MIPS pt_regs offsets. */"); | |
34 | offset("#define PT_R0 ", struct pt_regs, regs[0]); | |
35 | offset("#define PT_R1 ", struct pt_regs, regs[1]); | |
36 | offset("#define PT_R2 ", struct pt_regs, regs[2]); | |
37 | offset("#define PT_R3 ", struct pt_regs, regs[3]); | |
38 | offset("#define PT_R4 ", struct pt_regs, regs[4]); | |
39 | offset("#define PT_R5 ", struct pt_regs, regs[5]); | |
40 | offset("#define PT_R6 ", struct pt_regs, regs[6]); | |
41 | offset("#define PT_R7 ", struct pt_regs, regs[7]); | |
42 | offset("#define PT_R8 ", struct pt_regs, regs[8]); | |
43 | offset("#define PT_R9 ", struct pt_regs, regs[9]); | |
44 | offset("#define PT_R10 ", struct pt_regs, regs[10]); | |
45 | offset("#define PT_R11 ", struct pt_regs, regs[11]); | |
46 | offset("#define PT_R12 ", struct pt_regs, regs[12]); | |
47 | offset("#define PT_R13 ", struct pt_regs, regs[13]); | |
48 | offset("#define PT_R14 ", struct pt_regs, regs[14]); | |
49 | offset("#define PT_R15 ", struct pt_regs, regs[15]); | |
50 | offset("#define PT_R16 ", struct pt_regs, regs[16]); | |
51 | offset("#define PT_R17 ", struct pt_regs, regs[17]); | |
52 | offset("#define PT_R18 ", struct pt_regs, regs[18]); | |
53 | offset("#define PT_R19 ", struct pt_regs, regs[19]); | |
54 | offset("#define PT_R20 ", struct pt_regs, regs[20]); | |
55 | offset("#define PT_R21 ", struct pt_regs, regs[21]); | |
56 | offset("#define PT_R22 ", struct pt_regs, regs[22]); | |
57 | offset("#define PT_R23 ", struct pt_regs, regs[23]); | |
58 | offset("#define PT_R24 ", struct pt_regs, regs[24]); | |
59 | offset("#define PT_R25 ", struct pt_regs, regs[25]); | |
60 | offset("#define PT_R26 ", struct pt_regs, regs[26]); | |
61 | offset("#define PT_R27 ", struct pt_regs, regs[27]); | |
62 | offset("#define PT_R28 ", struct pt_regs, regs[28]); | |
63 | offset("#define PT_R29 ", struct pt_regs, regs[29]); | |
64 | offset("#define PT_R30 ", struct pt_regs, regs[30]); | |
65 | offset("#define PT_R31 ", struct pt_regs, regs[31]); | |
66 | offset("#define PT_LO ", struct pt_regs, lo); | |
67 | offset("#define PT_HI ", struct pt_regs, hi); | |
68 | offset("#define PT_EPC ", struct pt_regs, cp0_epc); | |
69 | offset("#define PT_BVADDR ", struct pt_regs, cp0_badvaddr); | |
70 | offset("#define PT_STATUS ", struct pt_regs, cp0_status); | |
71 | offset("#define PT_CAUSE ", struct pt_regs, cp0_cause); | |
41c594ab RB |
72 | #ifdef CONFIG_MIPS_MT_SMTC |
73 | offset("#define PT_TCSTATUS ", struct pt_regs, cp0_tcstatus); | |
74 | #endif /* CONFIG_MIPS_MT_SMTC */ | |
1da177e4 LT |
75 | size("#define PT_SIZE ", struct pt_regs); |
76 | linefeed; | |
77 | } | |
78 | ||
79 | void output_task_defines(void) | |
80 | { | |
81 | text("/* MIPS task_struct offsets. */"); | |
82 | offset("#define TASK_STATE ", struct task_struct, state); | |
83 | offset("#define TASK_THREAD_INFO ", struct task_struct, thread_info); | |
84 | offset("#define TASK_FLAGS ", struct task_struct, flags); | |
85 | offset("#define TASK_MM ", struct task_struct, mm); | |
86 | offset("#define TASK_PID ", struct task_struct, pid); | |
87 | size( "#define TASK_STRUCT_SIZE ", struct task_struct); | |
88 | linefeed; | |
89 | } | |
90 | ||
91 | void output_thread_info_defines(void) | |
92 | { | |
93 | text("/* MIPS thread_info offsets. */"); | |
94 | offset("#define TI_TASK ", struct thread_info, task); | |
95 | offset("#define TI_EXEC_DOMAIN ", struct thread_info, exec_domain); | |
96 | offset("#define TI_FLAGS ", struct thread_info, flags); | |
97 | offset("#define TI_CPU ", struct thread_info, cpu); | |
98 | offset("#define TI_PRE_COUNT ", struct thread_info, preempt_count); | |
99 | offset("#define TI_ADDR_LIMIT ", struct thread_info, addr_limit); | |
100 | offset("#define TI_RESTART_BLOCK ", struct thread_info, restart_block); | |
e50c0a8f | 101 | offset("#define TI_TP_VALUE ", struct thread_info, tp_value); |
1da177e4 LT |
102 | constant("#define _THREAD_SIZE_ORDER ", THREAD_SIZE_ORDER); |
103 | constant("#define _THREAD_SIZE ", THREAD_SIZE); | |
104 | constant("#define _THREAD_MASK ", THREAD_MASK); | |
105 | linefeed; | |
106 | } | |
107 | ||
108 | void output_thread_defines(void) | |
109 | { | |
110 | text("/* MIPS specific thread_struct offsets. */"); | |
111 | offset("#define THREAD_REG16 ", struct task_struct, thread.reg16); | |
112 | offset("#define THREAD_REG17 ", struct task_struct, thread.reg17); | |
113 | offset("#define THREAD_REG18 ", struct task_struct, thread.reg18); | |
114 | offset("#define THREAD_REG19 ", struct task_struct, thread.reg19); | |
115 | offset("#define THREAD_REG20 ", struct task_struct, thread.reg20); | |
116 | offset("#define THREAD_REG21 ", struct task_struct, thread.reg21); | |
117 | offset("#define THREAD_REG22 ", struct task_struct, thread.reg22); | |
118 | offset("#define THREAD_REG23 ", struct task_struct, thread.reg23); | |
119 | offset("#define THREAD_REG29 ", struct task_struct, thread.reg29); | |
120 | offset("#define THREAD_REG30 ", struct task_struct, thread.reg30); | |
121 | offset("#define THREAD_REG31 ", struct task_struct, thread.reg31); | |
122 | offset("#define THREAD_STATUS ", struct task_struct, | |
123 | thread.cp0_status); | |
124 | offset("#define THREAD_FPU ", struct task_struct, thread.fpu); | |
125 | ||
126 | offset("#define THREAD_BVADDR ", struct task_struct, \ | |
127 | thread.cp0_badvaddr); | |
128 | offset("#define THREAD_BUADDR ", struct task_struct, \ | |
129 | thread.cp0_baduaddr); | |
130 | offset("#define THREAD_ECODE ", struct task_struct, \ | |
131 | thread.error_code); | |
132 | offset("#define THREAD_TRAPNO ", struct task_struct, thread.trap_no); | |
133 | offset("#define THREAD_MFLAGS ", struct task_struct, thread.mflags); | |
134 | offset("#define THREAD_TRAMP ", struct task_struct, \ | |
135 | thread.irix_trampoline); | |
136 | offset("#define THREAD_OLDCTX ", struct task_struct, \ | |
137 | thread.irix_oldctx); | |
138 | linefeed; | |
139 | } | |
140 | ||
141 | void output_thread_fpu_defines(void) | |
142 | { | |
143 | offset("#define THREAD_FPR0 ", | |
eae89076 | 144 | struct task_struct, thread.fpu.fpr[0]); |
1da177e4 | 145 | offset("#define THREAD_FPR1 ", |
eae89076 | 146 | struct task_struct, thread.fpu.fpr[1]); |
1da177e4 | 147 | offset("#define THREAD_FPR2 ", |
eae89076 | 148 | struct task_struct, thread.fpu.fpr[2]); |
1da177e4 | 149 | offset("#define THREAD_FPR3 ", |
eae89076 | 150 | struct task_struct, thread.fpu.fpr[3]); |
1da177e4 | 151 | offset("#define THREAD_FPR4 ", |
eae89076 | 152 | struct task_struct, thread.fpu.fpr[4]); |
1da177e4 | 153 | offset("#define THREAD_FPR5 ", |
eae89076 | 154 | struct task_struct, thread.fpu.fpr[5]); |
1da177e4 | 155 | offset("#define THREAD_FPR6 ", |
eae89076 | 156 | struct task_struct, thread.fpu.fpr[6]); |
1da177e4 | 157 | offset("#define THREAD_FPR7 ", |
eae89076 | 158 | struct task_struct, thread.fpu.fpr[7]); |
1da177e4 | 159 | offset("#define THREAD_FPR8 ", |
eae89076 | 160 | struct task_struct, thread.fpu.fpr[8]); |
1da177e4 | 161 | offset("#define THREAD_FPR9 ", |
eae89076 | 162 | struct task_struct, thread.fpu.fpr[9]); |
1da177e4 | 163 | offset("#define THREAD_FPR10 ", |
eae89076 | 164 | struct task_struct, thread.fpu.fpr[10]); |
1da177e4 | 165 | offset("#define THREAD_FPR11 ", |
eae89076 | 166 | struct task_struct, thread.fpu.fpr[11]); |
1da177e4 | 167 | offset("#define THREAD_FPR12 ", |
eae89076 | 168 | struct task_struct, thread.fpu.fpr[12]); |
1da177e4 | 169 | offset("#define THREAD_FPR13 ", |
eae89076 | 170 | struct task_struct, thread.fpu.fpr[13]); |
1da177e4 | 171 | offset("#define THREAD_FPR14 ", |
eae89076 | 172 | struct task_struct, thread.fpu.fpr[14]); |
1da177e4 | 173 | offset("#define THREAD_FPR15 ", |
eae89076 | 174 | struct task_struct, thread.fpu.fpr[15]); |
1da177e4 | 175 | offset("#define THREAD_FPR16 ", |
eae89076 | 176 | struct task_struct, thread.fpu.fpr[16]); |
1da177e4 | 177 | offset("#define THREAD_FPR17 ", |
eae89076 | 178 | struct task_struct, thread.fpu.fpr[17]); |
1da177e4 | 179 | offset("#define THREAD_FPR18 ", |
eae89076 | 180 | struct task_struct, thread.fpu.fpr[18]); |
1da177e4 | 181 | offset("#define THREAD_FPR19 ", |
eae89076 | 182 | struct task_struct, thread.fpu.fpr[19]); |
1da177e4 | 183 | offset("#define THREAD_FPR20 ", |
eae89076 | 184 | struct task_struct, thread.fpu.fpr[20]); |
1da177e4 | 185 | offset("#define THREAD_FPR21 ", |
eae89076 | 186 | struct task_struct, thread.fpu.fpr[21]); |
1da177e4 | 187 | offset("#define THREAD_FPR22 ", |
eae89076 | 188 | struct task_struct, thread.fpu.fpr[22]); |
1da177e4 | 189 | offset("#define THREAD_FPR23 ", |
eae89076 | 190 | struct task_struct, thread.fpu.fpr[23]); |
1da177e4 | 191 | offset("#define THREAD_FPR24 ", |
eae89076 | 192 | struct task_struct, thread.fpu.fpr[24]); |
1da177e4 | 193 | offset("#define THREAD_FPR25 ", |
eae89076 | 194 | struct task_struct, thread.fpu.fpr[25]); |
1da177e4 | 195 | offset("#define THREAD_FPR26 ", |
eae89076 | 196 | struct task_struct, thread.fpu.fpr[26]); |
1da177e4 | 197 | offset("#define THREAD_FPR27 ", |
eae89076 | 198 | struct task_struct, thread.fpu.fpr[27]); |
1da177e4 | 199 | offset("#define THREAD_FPR28 ", |
eae89076 | 200 | struct task_struct, thread.fpu.fpr[28]); |
1da177e4 | 201 | offset("#define THREAD_FPR29 ", |
eae89076 | 202 | struct task_struct, thread.fpu.fpr[29]); |
1da177e4 | 203 | offset("#define THREAD_FPR30 ", |
eae89076 | 204 | struct task_struct, thread.fpu.fpr[30]); |
1da177e4 | 205 | offset("#define THREAD_FPR31 ", |
eae89076 | 206 | struct task_struct, thread.fpu.fpr[31]); |
1da177e4 LT |
207 | |
208 | offset("#define THREAD_FCR31 ", | |
eae89076 | 209 | struct task_struct, thread.fpu.fcr31); |
1da177e4 LT |
210 | linefeed; |
211 | } | |
212 | ||
213 | void output_mm_defines(void) | |
214 | { | |
215 | text("/* Size of struct page */"); | |
216 | size("#define STRUCT_PAGE_SIZE ", struct page); | |
217 | linefeed; | |
218 | text("/* Linux mm_struct offsets. */"); | |
219 | offset("#define MM_USERS ", struct mm_struct, mm_users); | |
220 | offset("#define MM_PGD ", struct mm_struct, pgd); | |
221 | offset("#define MM_CONTEXT ", struct mm_struct, context); | |
222 | linefeed; | |
223 | constant("#define _PAGE_SIZE ", PAGE_SIZE); | |
224 | constant("#define _PAGE_SHIFT ", PAGE_SHIFT); | |
225 | linefeed; | |
226 | constant("#define _PGD_T_SIZE ", sizeof(pgd_t)); | |
227 | constant("#define _PMD_T_SIZE ", sizeof(pmd_t)); | |
228 | constant("#define _PTE_T_SIZE ", sizeof(pte_t)); | |
229 | linefeed; | |
230 | constant("#define _PGD_T_LOG2 ", PGD_T_LOG2); | |
231 | constant("#define _PMD_T_LOG2 ", PMD_T_LOG2); | |
232 | constant("#define _PTE_T_LOG2 ", PTE_T_LOG2); | |
233 | linefeed; | |
234 | constant("#define _PMD_SHIFT ", PMD_SHIFT); | |
235 | constant("#define _PGDIR_SHIFT ", PGDIR_SHIFT); | |
236 | linefeed; | |
237 | constant("#define _PGD_ORDER ", PGD_ORDER); | |
238 | constant("#define _PMD_ORDER ", PMD_ORDER); | |
239 | constant("#define _PTE_ORDER ", PTE_ORDER); | |
240 | linefeed; | |
241 | constant("#define _PTRS_PER_PGD ", PTRS_PER_PGD); | |
242 | constant("#define _PTRS_PER_PMD ", PTRS_PER_PMD); | |
243 | constant("#define _PTRS_PER_PTE ", PTRS_PER_PTE); | |
244 | linefeed; | |
245 | } | |
246 | ||
e50c0a8f | 247 | #ifdef CONFIG_32BIT |
1da177e4 LT |
248 | void output_sc_defines(void) |
249 | { | |
250 | text("/* Linux sigcontext offsets. */"); | |
251 | offset("#define SC_REGS ", struct sigcontext, sc_regs); | |
252 | offset("#define SC_FPREGS ", struct sigcontext, sc_fpregs); | |
253 | offset("#define SC_MDHI ", struct sigcontext, sc_mdhi); | |
254 | offset("#define SC_MDLO ", struct sigcontext, sc_mdlo); | |
255 | offset("#define SC_PC ", struct sigcontext, sc_pc); | |
256 | offset("#define SC_STATUS ", struct sigcontext, sc_status); | |
257 | offset("#define SC_FPC_CSR ", struct sigcontext, sc_fpc_csr); | |
258 | offset("#define SC_FPC_EIR ", struct sigcontext, sc_fpc_eir); | |
e50c0a8f RB |
259 | offset("#define SC_HI1 ", struct sigcontext, sc_hi1); |
260 | offset("#define SC_LO1 ", struct sigcontext, sc_lo1); | |
261 | offset("#define SC_HI2 ", struct sigcontext, sc_hi2); | |
262 | offset("#define SC_LO2 ", struct sigcontext, sc_lo2); | |
263 | offset("#define SC_HI3 ", struct sigcontext, sc_hi3); | |
264 | offset("#define SC_LO3 ", struct sigcontext, sc_lo3); | |
1da177e4 LT |
265 | linefeed; |
266 | } | |
e50c0a8f RB |
267 | #endif |
268 | ||
269 | #ifdef CONFIG_64BIT | |
270 | void output_sc_defines(void) | |
271 | { | |
272 | text("/* Linux sigcontext offsets. */"); | |
273 | offset("#define SC_REGS ", struct sigcontext, sc_regs); | |
274 | offset("#define SC_FPREGS ", struct sigcontext, sc_fpregs); | |
1c0c1ae4 DJ |
275 | offset("#define SC_MDHI ", struct sigcontext, sc_mdhi); |
276 | offset("#define SC_MDLO ", struct sigcontext, sc_mdlo); | |
e50c0a8f RB |
277 | offset("#define SC_PC ", struct sigcontext, sc_pc); |
278 | offset("#define SC_FPC_CSR ", struct sigcontext, sc_fpc_csr); | |
279 | linefeed; | |
280 | } | |
281 | #endif | |
1da177e4 LT |
282 | |
283 | #ifdef CONFIG_MIPS32_COMPAT | |
284 | void output_sc32_defines(void) | |
285 | { | |
286 | text("/* Linux 32-bit sigcontext offsets. */"); | |
287 | offset("#define SC32_FPREGS ", struct sigcontext32, sc_fpregs); | |
288 | offset("#define SC32_FPC_CSR ", struct sigcontext32, sc_fpc_csr); | |
289 | offset("#define SC32_FPC_EIR ", struct sigcontext32, sc_fpc_eir); | |
290 | linefeed; | |
291 | } | |
292 | #endif | |
293 | ||
294 | void output_signal_defined(void) | |
295 | { | |
296 | text("/* Linux signal numbers. */"); | |
297 | constant("#define _SIGHUP ", SIGHUP); | |
298 | constant("#define _SIGINT ", SIGINT); | |
299 | constant("#define _SIGQUIT ", SIGQUIT); | |
300 | constant("#define _SIGILL ", SIGILL); | |
301 | constant("#define _SIGTRAP ", SIGTRAP); | |
302 | constant("#define _SIGIOT ", SIGIOT); | |
303 | constant("#define _SIGABRT ", SIGABRT); | |
304 | constant("#define _SIGEMT ", SIGEMT); | |
305 | constant("#define _SIGFPE ", SIGFPE); | |
306 | constant("#define _SIGKILL ", SIGKILL); | |
307 | constant("#define _SIGBUS ", SIGBUS); | |
308 | constant("#define _SIGSEGV ", SIGSEGV); | |
309 | constant("#define _SIGSYS ", SIGSYS); | |
310 | constant("#define _SIGPIPE ", SIGPIPE); | |
311 | constant("#define _SIGALRM ", SIGALRM); | |
312 | constant("#define _SIGTERM ", SIGTERM); | |
313 | constant("#define _SIGUSR1 ", SIGUSR1); | |
314 | constant("#define _SIGUSR2 ", SIGUSR2); | |
315 | constant("#define _SIGCHLD ", SIGCHLD); | |
316 | constant("#define _SIGPWR ", SIGPWR); | |
317 | constant("#define _SIGWINCH ", SIGWINCH); | |
318 | constant("#define _SIGURG ", SIGURG); | |
319 | constant("#define _SIGIO ", SIGIO); | |
320 | constant("#define _SIGSTOP ", SIGSTOP); | |
321 | constant("#define _SIGTSTP ", SIGTSTP); | |
322 | constant("#define _SIGCONT ", SIGCONT); | |
323 | constant("#define _SIGTTIN ", SIGTTIN); | |
324 | constant("#define _SIGTTOU ", SIGTTOU); | |
325 | constant("#define _SIGVTALRM ", SIGVTALRM); | |
326 | constant("#define _SIGPROF ", SIGPROF); | |
327 | constant("#define _SIGXCPU ", SIGXCPU); | |
328 | constant("#define _SIGXFSZ ", SIGXFSZ); | |
329 | linefeed; | |
330 | } | |
331 | ||
332 | void output_irq_cpustat_t_defines(void) | |
333 | { | |
334 | text("/* Linux irq_cpustat_t offsets. */"); | |
335 | offset("#define IC_SOFTIRQ_PENDING ", irq_cpustat_t, __softirq_pending); | |
336 | size("#define IC_IRQ_CPUSTAT_T ", irq_cpustat_t); | |
337 | linefeed; | |
338 | } |