2 * offset.c: Calculate pt_regs and task_struct offsets.
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.
8 * Kevin Kissell, kevink@mips.com and Carsten Langgaard, carstenl@mips.com
9 * Copyright (C) 2000 MIPS Technologies, Inc.
11 #include <linux/compat.h>
12 #include <linux/types.h>
13 #include <linux/sched.h>
15 #include <linux/interrupt.h>
17 #include <asm/ptrace.h>
18 #include <asm/processor.h>
20 #define text(t) __asm__("\n@@@" t)
21 #define _offset(type, member) (&(((type *)NULL)->member))
22 #define offset(string, ptr, member) \
23 __asm__("\n@@@" string "%0" : : "i" (_offset(ptr, member)))
24 #define constant(string, member) \
25 __asm__("\n@@@" string "%X0" : : "ri" (member))
26 #define size(string, size) \
27 __asm__("\n@@@" string "%0" : : "i" (sizeof(size)))
28 #define linefeed text("")
30 void output_ptreg_defines(void)
32 text("/* MIPS pt_regs offsets. */");
33 offset("#define PT_R0 ", struct pt_regs, regs[0]);
34 offset("#define PT_R1 ", struct pt_regs, regs[1]);
35 offset("#define PT_R2 ", struct pt_regs, regs[2]);
36 offset("#define PT_R3 ", struct pt_regs, regs[3]);
37 offset("#define PT_R4 ", struct pt_regs, regs[4]);
38 offset("#define PT_R5 ", struct pt_regs, regs[5]);
39 offset("#define PT_R6 ", struct pt_regs, regs[6]);
40 offset("#define PT_R7 ", struct pt_regs, regs[7]);
41 offset("#define PT_R8 ", struct pt_regs, regs[8]);
42 offset("#define PT_R9 ", struct pt_regs, regs[9]);
43 offset("#define PT_R10 ", struct pt_regs, regs[10]);
44 offset("#define PT_R11 ", struct pt_regs, regs[11]);
45 offset("#define PT_R12 ", struct pt_regs, regs[12]);
46 offset("#define PT_R13 ", struct pt_regs, regs[13]);
47 offset("#define PT_R14 ", struct pt_regs, regs[14]);
48 offset("#define PT_R15 ", struct pt_regs, regs[15]);
49 offset("#define PT_R16 ", struct pt_regs, regs[16]);
50 offset("#define PT_R17 ", struct pt_regs, regs[17]);
51 offset("#define PT_R18 ", struct pt_regs, regs[18]);
52 offset("#define PT_R19 ", struct pt_regs, regs[19]);
53 offset("#define PT_R20 ", struct pt_regs, regs[20]);
54 offset("#define PT_R21 ", struct pt_regs, regs[21]);
55 offset("#define PT_R22 ", struct pt_regs, regs[22]);
56 offset("#define PT_R23 ", struct pt_regs, regs[23]);
57 offset("#define PT_R24 ", struct pt_regs, regs[24]);
58 offset("#define PT_R25 ", struct pt_regs, regs[25]);
59 offset("#define PT_R26 ", struct pt_regs, regs[26]);
60 offset("#define PT_R27 ", struct pt_regs, regs[27]);
61 offset("#define PT_R28 ", struct pt_regs, regs[28]);
62 offset("#define PT_R29 ", struct pt_regs, regs[29]);
63 offset("#define PT_R30 ", struct pt_regs, regs[30]);
64 offset("#define PT_R31 ", struct pt_regs, regs[31]);
65 offset("#define PT_LO ", struct pt_regs, lo);
66 offset("#define PT_HI ", struct pt_regs, hi);
67 #ifdef CONFIG_CPU_HAS_SMARTMIPS
68 offset("#define PT_ACX ", struct pt_regs, acx);
70 offset("#define PT_EPC ", struct pt_regs, cp0_epc);
71 offset("#define PT_BVADDR ", struct pt_regs, cp0_badvaddr);
72 offset("#define PT_STATUS ", struct pt_regs, cp0_status);
73 offset("#define PT_CAUSE ", struct pt_regs, cp0_cause);
74 #ifdef CONFIG_MIPS_MT_SMTC
75 offset("#define PT_TCSTATUS ", struct pt_regs, cp0_tcstatus);
76 #endif /* CONFIG_MIPS_MT_SMTC */
77 size("#define PT_SIZE ", struct pt_regs);
81 void output_task_defines(void)
83 text("/* MIPS task_struct offsets. */");
84 offset("#define TASK_STATE ", struct task_struct, state);
85 offset("#define TASK_THREAD_INFO ", struct task_struct, stack);
86 offset("#define TASK_FLAGS ", struct task_struct, flags);
87 offset("#define TASK_MM ", struct task_struct, mm);
88 offset("#define TASK_PID ", struct task_struct, pid);
89 size( "#define TASK_STRUCT_SIZE ", struct task_struct);
93 void output_thread_info_defines(void)
95 text("/* MIPS thread_info offsets. */");
96 offset("#define TI_TASK ", struct thread_info, task);
97 offset("#define TI_EXEC_DOMAIN ", struct thread_info, exec_domain);
98 offset("#define TI_FLAGS ", struct thread_info, flags);
99 offset("#define TI_TP_VALUE ", struct thread_info, tp_value);
100 offset("#define TI_CPU ", struct thread_info, cpu);
101 offset("#define TI_PRE_COUNT ", struct thread_info, preempt_count);
102 offset("#define TI_ADDR_LIMIT ", struct thread_info, addr_limit);
103 offset("#define TI_RESTART_BLOCK ", struct thread_info, restart_block);
104 offset("#define TI_REGS ", struct thread_info, regs);
105 constant("#define _THREAD_SIZE ", THREAD_SIZE);
106 constant("#define _THREAD_MASK ", THREAD_MASK);
110 void output_thread_defines(void)
112 text("/* MIPS specific thread_struct offsets. */");
113 offset("#define THREAD_REG16 ", struct task_struct, thread.reg16);
114 offset("#define THREAD_REG17 ", struct task_struct, thread.reg17);
115 offset("#define THREAD_REG18 ", struct task_struct, thread.reg18);
116 offset("#define THREAD_REG19 ", struct task_struct, thread.reg19);
117 offset("#define THREAD_REG20 ", struct task_struct, thread.reg20);
118 offset("#define THREAD_REG21 ", struct task_struct, thread.reg21);
119 offset("#define THREAD_REG22 ", struct task_struct, thread.reg22);
120 offset("#define THREAD_REG23 ", struct task_struct, thread.reg23);
121 offset("#define THREAD_REG29 ", struct task_struct, thread.reg29);
122 offset("#define THREAD_REG30 ", struct task_struct, thread.reg30);
123 offset("#define THREAD_REG31 ", struct task_struct, thread.reg31);
124 offset("#define THREAD_STATUS ", struct task_struct,
126 offset("#define THREAD_FPU ", struct task_struct, thread.fpu);
128 offset("#define THREAD_BVADDR ", struct task_struct, \
129 thread.cp0_badvaddr);
130 offset("#define THREAD_BUADDR ", struct task_struct, \
131 thread.cp0_baduaddr);
132 offset("#define THREAD_ECODE ", struct task_struct, \
134 offset("#define THREAD_TRAPNO ", struct task_struct, thread.trap_no);
135 offset("#define THREAD_MFLAGS ", struct task_struct, thread.mflags);
136 offset("#define THREAD_TRAMP ", struct task_struct, \
137 thread.irix_trampoline);
138 offset("#define THREAD_OLDCTX ", struct task_struct, \
143 void output_thread_fpu_defines(void)
145 offset("#define THREAD_FPR0 ",
146 struct task_struct, thread.fpu.fpr[0]);
147 offset("#define THREAD_FPR1 ",
148 struct task_struct, thread.fpu.fpr[1]);
149 offset("#define THREAD_FPR2 ",
150 struct task_struct, thread.fpu.fpr[2]);
151 offset("#define THREAD_FPR3 ",
152 struct task_struct, thread.fpu.fpr[3]);
153 offset("#define THREAD_FPR4 ",
154 struct task_struct, thread.fpu.fpr[4]);
155 offset("#define THREAD_FPR5 ",
156 struct task_struct, thread.fpu.fpr[5]);
157 offset("#define THREAD_FPR6 ",
158 struct task_struct, thread.fpu.fpr[6]);
159 offset("#define THREAD_FPR7 ",
160 struct task_struct, thread.fpu.fpr[7]);
161 offset("#define THREAD_FPR8 ",
162 struct task_struct, thread.fpu.fpr[8]);
163 offset("#define THREAD_FPR9 ",
164 struct task_struct, thread.fpu.fpr[9]);
165 offset("#define THREAD_FPR10 ",
166 struct task_struct, thread.fpu.fpr[10]);
167 offset("#define THREAD_FPR11 ",
168 struct task_struct, thread.fpu.fpr[11]);
169 offset("#define THREAD_FPR12 ",
170 struct task_struct, thread.fpu.fpr[12]);
171 offset("#define THREAD_FPR13 ",
172 struct task_struct, thread.fpu.fpr[13]);
173 offset("#define THREAD_FPR14 ",
174 struct task_struct, thread.fpu.fpr[14]);
175 offset("#define THREAD_FPR15 ",
176 struct task_struct, thread.fpu.fpr[15]);
177 offset("#define THREAD_FPR16 ",
178 struct task_struct, thread.fpu.fpr[16]);
179 offset("#define THREAD_FPR17 ",
180 struct task_struct, thread.fpu.fpr[17]);
181 offset("#define THREAD_FPR18 ",
182 struct task_struct, thread.fpu.fpr[18]);
183 offset("#define THREAD_FPR19 ",
184 struct task_struct, thread.fpu.fpr[19]);
185 offset("#define THREAD_FPR20 ",
186 struct task_struct, thread.fpu.fpr[20]);
187 offset("#define THREAD_FPR21 ",
188 struct task_struct, thread.fpu.fpr[21]);
189 offset("#define THREAD_FPR22 ",
190 struct task_struct, thread.fpu.fpr[22]);
191 offset("#define THREAD_FPR23 ",
192 struct task_struct, thread.fpu.fpr[23]);
193 offset("#define THREAD_FPR24 ",
194 struct task_struct, thread.fpu.fpr[24]);
195 offset("#define THREAD_FPR25 ",
196 struct task_struct, thread.fpu.fpr[25]);
197 offset("#define THREAD_FPR26 ",
198 struct task_struct, thread.fpu.fpr[26]);
199 offset("#define THREAD_FPR27 ",
200 struct task_struct, thread.fpu.fpr[27]);
201 offset("#define THREAD_FPR28 ",
202 struct task_struct, thread.fpu.fpr[28]);
203 offset("#define THREAD_FPR29 ",
204 struct task_struct, thread.fpu.fpr[29]);
205 offset("#define THREAD_FPR30 ",
206 struct task_struct, thread.fpu.fpr[30]);
207 offset("#define THREAD_FPR31 ",
208 struct task_struct, thread.fpu.fpr[31]);
210 offset("#define THREAD_FCR31 ",
211 struct task_struct, thread.fpu.fcr31);
215 void output_mm_defines(void)
217 text("/* Size of struct page */");
218 size("#define STRUCT_PAGE_SIZE ", struct page);
220 text("/* Linux mm_struct offsets. */");
221 offset("#define MM_USERS ", struct mm_struct, mm_users);
222 offset("#define MM_PGD ", struct mm_struct, pgd);
223 offset("#define MM_CONTEXT ", struct mm_struct, context);
225 constant("#define _PAGE_SIZE ", PAGE_SIZE);
226 constant("#define _PAGE_SHIFT ", PAGE_SHIFT);
228 constant("#define _PGD_T_SIZE ", sizeof(pgd_t));
229 constant("#define _PMD_T_SIZE ", sizeof(pmd_t));
230 constant("#define _PTE_T_SIZE ", sizeof(pte_t));
232 constant("#define _PGD_T_LOG2 ", PGD_T_LOG2);
233 constant("#define _PMD_T_LOG2 ", PMD_T_LOG2);
234 constant("#define _PTE_T_LOG2 ", PTE_T_LOG2);
236 constant("#define _PMD_SHIFT ", PMD_SHIFT);
237 constant("#define _PGDIR_SHIFT ", PGDIR_SHIFT);
239 constant("#define _PTRS_PER_PGD ", PTRS_PER_PGD);
240 constant("#define _PTRS_PER_PMD ", PTRS_PER_PMD);
241 constant("#define _PTRS_PER_PTE ", PTRS_PER_PTE);
246 void output_sc_defines(void)
248 text("/* Linux sigcontext offsets. */");
249 offset("#define SC_REGS ", struct sigcontext, sc_regs);
250 offset("#define SC_FPREGS ", struct sigcontext, sc_fpregs);
251 offset("#define SC_ACX ", struct sigcontext, sc_acx);
252 offset("#define SC_MDHI ", struct sigcontext, sc_mdhi);
253 offset("#define SC_MDLO ", struct sigcontext, sc_mdlo);
254 offset("#define SC_PC ", struct sigcontext, sc_pc);
255 offset("#define SC_FPC_CSR ", struct sigcontext, sc_fpc_csr);
256 offset("#define SC_FPC_EIR ", struct sigcontext, sc_fpc_eir);
257 offset("#define SC_HI1 ", struct sigcontext, sc_hi1);
258 offset("#define SC_LO1 ", struct sigcontext, sc_lo1);
259 offset("#define SC_HI2 ", struct sigcontext, sc_hi2);
260 offset("#define SC_LO2 ", struct sigcontext, sc_lo2);
261 offset("#define SC_HI3 ", struct sigcontext, sc_hi3);
262 offset("#define SC_LO3 ", struct sigcontext, sc_lo3);
268 void output_sc_defines(void)
270 text("/* Linux sigcontext offsets. */");
271 offset("#define SC_REGS ", struct sigcontext, sc_regs);
272 offset("#define SC_FPREGS ", struct sigcontext, sc_fpregs);
273 offset("#define SC_MDHI ", struct sigcontext, sc_mdhi);
274 offset("#define SC_MDLO ", struct sigcontext, sc_mdlo);
275 offset("#define SC_PC ", struct sigcontext, sc_pc);
276 offset("#define SC_FPC_CSR ", struct sigcontext, sc_fpc_csr);
281 #ifdef CONFIG_MIPS32_COMPAT
282 void output_sc32_defines(void)
284 text("/* Linux 32-bit sigcontext offsets. */");
285 offset("#define SC32_FPREGS ", struct sigcontext32, sc_fpregs);
286 offset("#define SC32_FPC_CSR ", struct sigcontext32, sc_fpc_csr);
287 offset("#define SC32_FPC_EIR ", struct sigcontext32, sc_fpc_eir);
292 void output_signal_defined(void)
294 text("/* Linux signal numbers. */");
295 constant("#define _SIGHUP ", SIGHUP);
296 constant("#define _SIGINT ", SIGINT);
297 constant("#define _SIGQUIT ", SIGQUIT);
298 constant("#define _SIGILL ", SIGILL);
299 constant("#define _SIGTRAP ", SIGTRAP);
300 constant("#define _SIGIOT ", SIGIOT);
301 constant("#define _SIGABRT ", SIGABRT);
302 constant("#define _SIGEMT ", SIGEMT);
303 constant("#define _SIGFPE ", SIGFPE);
304 constant("#define _SIGKILL ", SIGKILL);
305 constant("#define _SIGBUS ", SIGBUS);
306 constant("#define _SIGSEGV ", SIGSEGV);
307 constant("#define _SIGSYS ", SIGSYS);
308 constant("#define _SIGPIPE ", SIGPIPE);
309 constant("#define _SIGALRM ", SIGALRM);
310 constant("#define _SIGTERM ", SIGTERM);
311 constant("#define _SIGUSR1 ", SIGUSR1);
312 constant("#define _SIGUSR2 ", SIGUSR2);
313 constant("#define _SIGCHLD ", SIGCHLD);
314 constant("#define _SIGPWR ", SIGPWR);
315 constant("#define _SIGWINCH ", SIGWINCH);
316 constant("#define _SIGURG ", SIGURG);
317 constant("#define _SIGIO ", SIGIO);
318 constant("#define _SIGSTOP ", SIGSTOP);
319 constant("#define _SIGTSTP ", SIGTSTP);
320 constant("#define _SIGCONT ", SIGCONT);
321 constant("#define _SIGTTIN ", SIGTTIN);
322 constant("#define _SIGTTOU ", SIGTTOU);
323 constant("#define _SIGVTALRM ", SIGVTALRM);
324 constant("#define _SIGPROF ", SIGPROF);
325 constant("#define _SIGXCPU ", SIGXCPU);
326 constant("#define _SIGXFSZ ", SIGXFSZ);
330 void output_irq_cpustat_t_defines(void)
332 text("/* Linux irq_cpustat_t offsets. */");
333 offset("#define IC_SOFTIRQ_PENDING ", irq_cpustat_t, __softirq_pending);
334 size("#define IC_IRQ_CPUSTAT_T ", irq_cpustat_t);