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-rw-r--r--arch/mips/kernel/asm-offsets.c314
1 files changed, 314 insertions, 0 deletions
diff --git a/arch/mips/kernel/asm-offsets.c b/arch/mips/kernel/asm-offsets.c
new file mode 100644
index 000000000000..2c11abb5a406
--- /dev/null
+++ b/arch/mips/kernel/asm-offsets.c
@@ -0,0 +1,314 @@
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
31void 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);
72 size("#define PT_SIZE ", struct pt_regs);
73 linefeed;
74}
75
76void output_task_defines(void)
77{
78 text("/* MIPS task_struct offsets. */");
79 offset("#define TASK_STATE ", struct task_struct, state);
80 offset("#define TASK_THREAD_INFO ", struct task_struct, thread_info);
81 offset("#define TASK_FLAGS ", struct task_struct, flags);
82 offset("#define TASK_MM ", struct task_struct, mm);
83 offset("#define TASK_PID ", struct task_struct, pid);
84 size( "#define TASK_STRUCT_SIZE ", struct task_struct);
85 linefeed;
86}
87
88void output_thread_info_defines(void)
89{
90 text("/* MIPS thread_info offsets. */");
91 offset("#define TI_TASK ", struct thread_info, task);
92 offset("#define TI_EXEC_DOMAIN ", struct thread_info, exec_domain);
93 offset("#define TI_FLAGS ", struct thread_info, flags);
94 offset("#define TI_CPU ", struct thread_info, cpu);
95 offset("#define TI_PRE_COUNT ", struct thread_info, preempt_count);
96 offset("#define TI_ADDR_LIMIT ", struct thread_info, addr_limit);
97 offset("#define TI_RESTART_BLOCK ", struct thread_info, restart_block);
98 constant("#define _THREAD_SIZE_ORDER ", THREAD_SIZE_ORDER);
99 constant("#define _THREAD_SIZE ", THREAD_SIZE);
100 constant("#define _THREAD_MASK ", THREAD_MASK);
101 linefeed;
102}
103
104void output_thread_defines(void)
105{
106 text("/* MIPS specific thread_struct offsets. */");
107 offset("#define THREAD_REG16 ", struct task_struct, thread.reg16);
108 offset("#define THREAD_REG17 ", struct task_struct, thread.reg17);
109 offset("#define THREAD_REG18 ", struct task_struct, thread.reg18);
110 offset("#define THREAD_REG19 ", struct task_struct, thread.reg19);
111 offset("#define THREAD_REG20 ", struct task_struct, thread.reg20);
112 offset("#define THREAD_REG21 ", struct task_struct, thread.reg21);
113 offset("#define THREAD_REG22 ", struct task_struct, thread.reg22);
114 offset("#define THREAD_REG23 ", struct task_struct, thread.reg23);
115 offset("#define THREAD_REG29 ", struct task_struct, thread.reg29);
116 offset("#define THREAD_REG30 ", struct task_struct, thread.reg30);
117 offset("#define THREAD_REG31 ", struct task_struct, thread.reg31);
118 offset("#define THREAD_STATUS ", struct task_struct,
119 thread.cp0_status);
120 offset("#define THREAD_FPU ", struct task_struct, thread.fpu);
121
122 offset("#define THREAD_BVADDR ", struct task_struct, \
123 thread.cp0_badvaddr);
124 offset("#define THREAD_BUADDR ", struct task_struct, \
125 thread.cp0_baduaddr);
126 offset("#define THREAD_ECODE ", struct task_struct, \
127 thread.error_code);
128 offset("#define THREAD_TRAPNO ", struct task_struct, thread.trap_no);
129 offset("#define THREAD_MFLAGS ", struct task_struct, thread.mflags);
130 offset("#define THREAD_TRAMP ", struct task_struct, \
131 thread.irix_trampoline);
132 offset("#define THREAD_OLDCTX ", struct task_struct, \
133 thread.irix_oldctx);
134 linefeed;
135}
136
137void output_thread_fpu_defines(void)
138{
139 offset("#define THREAD_FPR0 ",
140 struct task_struct, thread.fpu.hard.fpr[0]);
141 offset("#define THREAD_FPR1 ",
142 struct task_struct, thread.fpu.hard.fpr[1]);
143 offset("#define THREAD_FPR2 ",
144 struct task_struct, thread.fpu.hard.fpr[2]);
145 offset("#define THREAD_FPR3 ",
146 struct task_struct, thread.fpu.hard.fpr[3]);
147 offset("#define THREAD_FPR4 ",
148 struct task_struct, thread.fpu.hard.fpr[4]);
149 offset("#define THREAD_FPR5 ",
150 struct task_struct, thread.fpu.hard.fpr[5]);
151 offset("#define THREAD_FPR6 ",
152 struct task_struct, thread.fpu.hard.fpr[6]);
153 offset("#define THREAD_FPR7 ",
154 struct task_struct, thread.fpu.hard.fpr[7]);
155 offset("#define THREAD_FPR8 ",
156 struct task_struct, thread.fpu.hard.fpr[8]);
157 offset("#define THREAD_FPR9 ",
158 struct task_struct, thread.fpu.hard.fpr[9]);
159 offset("#define THREAD_FPR10 ",
160 struct task_struct, thread.fpu.hard.fpr[10]);
161 offset("#define THREAD_FPR11 ",
162 struct task_struct, thread.fpu.hard.fpr[11]);
163 offset("#define THREAD_FPR12 ",
164 struct task_struct, thread.fpu.hard.fpr[12]);
165 offset("#define THREAD_FPR13 ",
166 struct task_struct, thread.fpu.hard.fpr[13]);
167 offset("#define THREAD_FPR14 ",
168 struct task_struct, thread.fpu.hard.fpr[14]);
169 offset("#define THREAD_FPR15 ",
170 struct task_struct, thread.fpu.hard.fpr[15]);
171 offset("#define THREAD_FPR16 ",
172 struct task_struct, thread.fpu.hard.fpr[16]);
173 offset("#define THREAD_FPR17 ",
174 struct task_struct, thread.fpu.hard.fpr[17]);
175 offset("#define THREAD_FPR18 ",
176 struct task_struct, thread.fpu.hard.fpr[18]);
177 offset("#define THREAD_FPR19 ",
178 struct task_struct, thread.fpu.hard.fpr[19]);
179 offset("#define THREAD_FPR20 ",
180 struct task_struct, thread.fpu.hard.fpr[20]);
181 offset("#define THREAD_FPR21 ",
182 struct task_struct, thread.fpu.hard.fpr[21]);
183 offset("#define THREAD_FPR22 ",
184 struct task_struct, thread.fpu.hard.fpr[22]);
185 offset("#define THREAD_FPR23 ",
186 struct task_struct, thread.fpu.hard.fpr[23]);
187 offset("#define THREAD_FPR24 ",
188 struct task_struct, thread.fpu.hard.fpr[24]);
189 offset("#define THREAD_FPR25 ",
190 struct task_struct, thread.fpu.hard.fpr[25]);
191 offset("#define THREAD_FPR26 ",
192 struct task_struct, thread.fpu.hard.fpr[26]);
193 offset("#define THREAD_FPR27 ",
194 struct task_struct, thread.fpu.hard.fpr[27]);
195 offset("#define THREAD_FPR28 ",
196 struct task_struct, thread.fpu.hard.fpr[28]);
197 offset("#define THREAD_FPR29 ",
198 struct task_struct, thread.fpu.hard.fpr[29]);
199 offset("#define THREAD_FPR30 ",
200 struct task_struct, thread.fpu.hard.fpr[30]);
201 offset("#define THREAD_FPR31 ",
202 struct task_struct, thread.fpu.hard.fpr[31]);
203
204 offset("#define THREAD_FCR31 ",
205 struct task_struct, thread.fpu.hard.fcr31);
206 linefeed;
207}
208
209void output_mm_defines(void)
210{
211 text("/* Size of struct page */");
212 size("#define STRUCT_PAGE_SIZE ", struct page);
213 linefeed;
214 text("/* Linux mm_struct offsets. */");
215 offset("#define MM_USERS ", struct mm_struct, mm_users);
216 offset("#define MM_PGD ", struct mm_struct, pgd);
217 offset("#define MM_CONTEXT ", struct mm_struct, context);
218 linefeed;
219 constant("#define _PAGE_SIZE ", PAGE_SIZE);
220 constant("#define _PAGE_SHIFT ", PAGE_SHIFT);
221 linefeed;
222 constant("#define _PGD_T_SIZE ", sizeof(pgd_t));
223 constant("#define _PMD_T_SIZE ", sizeof(pmd_t));
224 constant("#define _PTE_T_SIZE ", sizeof(pte_t));
225 linefeed;
226 constant("#define _PGD_T_LOG2 ", PGD_T_LOG2);
227 constant("#define _PMD_T_LOG2 ", PMD_T_LOG2);
228 constant("#define _PTE_T_LOG2 ", PTE_T_LOG2);
229 linefeed;
230 constant("#define _PMD_SHIFT ", PMD_SHIFT);
231 constant("#define _PGDIR_SHIFT ", PGDIR_SHIFT);
232 linefeed;
233 constant("#define _PGD_ORDER ", PGD_ORDER);
234 constant("#define _PMD_ORDER ", PMD_ORDER);
235 constant("#define _PTE_ORDER ", PTE_ORDER);
236 linefeed;
237 constant("#define _PTRS_PER_PGD ", PTRS_PER_PGD);
238 constant("#define _PTRS_PER_PMD ", PTRS_PER_PMD);
239 constant("#define _PTRS_PER_PTE ", PTRS_PER_PTE);
240 linefeed;
241}
242
243void output_sc_defines(void)
244{
245 text("/* Linux sigcontext offsets. */");
246 offset("#define SC_REGS ", struct sigcontext, sc_regs);
247 offset("#define SC_FPREGS ", struct sigcontext, sc_fpregs);
248 offset("#define SC_MDHI ", struct sigcontext, sc_mdhi);
249 offset("#define SC_MDLO ", struct sigcontext, sc_mdlo);
250 offset("#define SC_PC ", struct sigcontext, sc_pc);
251 offset("#define SC_STATUS ", struct sigcontext, sc_status);
252 offset("#define SC_FPC_CSR ", struct sigcontext, sc_fpc_csr);
253 offset("#define SC_FPC_EIR ", struct sigcontext, sc_fpc_eir);
254 offset("#define SC_CAUSE ", struct sigcontext, sc_cause);
255 offset("#define SC_BADVADDR ", struct sigcontext, sc_badvaddr);
256 linefeed;
257}
258
259#ifdef CONFIG_MIPS32_COMPAT
260void output_sc32_defines(void)
261{
262 text("/* Linux 32-bit sigcontext offsets. */");
263 offset("#define SC32_FPREGS ", struct sigcontext32, sc_fpregs);
264 offset("#define SC32_FPC_CSR ", struct sigcontext32, sc_fpc_csr);
265 offset("#define SC32_FPC_EIR ", struct sigcontext32, sc_fpc_eir);
266 linefeed;
267}
268#endif
269
270void output_signal_defined(void)
271{
272 text("/* Linux signal numbers. */");
273 constant("#define _SIGHUP ", SIGHUP);
274 constant("#define _SIGINT ", SIGINT);
275 constant("#define _SIGQUIT ", SIGQUIT);
276 constant("#define _SIGILL ", SIGILL);
277 constant("#define _SIGTRAP ", SIGTRAP);
278 constant("#define _SIGIOT ", SIGIOT);
279 constant("#define _SIGABRT ", SIGABRT);
280 constant("#define _SIGEMT ", SIGEMT);
281 constant("#define _SIGFPE ", SIGFPE);
282 constant("#define _SIGKILL ", SIGKILL);
283 constant("#define _SIGBUS ", SIGBUS);
284 constant("#define _SIGSEGV ", SIGSEGV);
285 constant("#define _SIGSYS ", SIGSYS);
286 constant("#define _SIGPIPE ", SIGPIPE);
287 constant("#define _SIGALRM ", SIGALRM);
288 constant("#define _SIGTERM ", SIGTERM);
289 constant("#define _SIGUSR1 ", SIGUSR1);
290 constant("#define _SIGUSR2 ", SIGUSR2);
291 constant("#define _SIGCHLD ", SIGCHLD);
292 constant("#define _SIGPWR ", SIGPWR);
293 constant("#define _SIGWINCH ", SIGWINCH);
294 constant("#define _SIGURG ", SIGURG);
295 constant("#define _SIGIO ", SIGIO);
296 constant("#define _SIGSTOP ", SIGSTOP);
297 constant("#define _SIGTSTP ", SIGTSTP);
298 constant("#define _SIGCONT ", SIGCONT);
299 constant("#define _SIGTTIN ", SIGTTIN);
300 constant("#define _SIGTTOU ", SIGTTOU);
301 constant("#define _SIGVTALRM ", SIGVTALRM);
302 constant("#define _SIGPROF ", SIGPROF);
303 constant("#define _SIGXCPU ", SIGXCPU);
304 constant("#define _SIGXFSZ ", SIGXFSZ);
305 linefeed;
306}
307
308void output_irq_cpustat_t_defines(void)
309{
310 text("/* Linux irq_cpustat_t offsets. */");
311 offset("#define IC_SOFTIRQ_PENDING ", irq_cpustat_t, __softirq_pending);
312 size("#define IC_IRQ_CPUSTAT_T ", irq_cpustat_t);
313 linefeed;
314}
generated by cgit v1.2.2 (git 2.25.0) at 2025-12-13 22:49:40 -0500