Fix compilation of powerpc asm-offsets.c with old gcc
[linux-2.6/linux-2.6-openrd.git] / arch / powerpc / kernel / asm-offsets.c
blob4b749c41646441b70b0216beddfeab7409a661ce
1 /*
2 * This program is used to generate definitions needed by
3 * assembly language modules.
5 * We use the technique used in the OSF Mach kernel code:
6 * generate asm statements containing #defines,
7 * compile this file to assembler, and then extract the
8 * #defines from the assembly-language output.
10 * This program is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU General Public License
12 * as published by the Free Software Foundation; either version
13 * 2 of the License, or (at your option) any later version.
16 #include <linux/signal.h>
17 #include <linux/sched.h>
18 #include <linux/kernel.h>
19 #include <linux/errno.h>
20 #include <linux/string.h>
21 #include <linux/types.h>
22 #include <linux/mman.h>
23 #include <linux/mm.h>
24 #include <linux/suspend.h>
25 #include <linux/hrtimer.h>
26 #ifdef CONFIG_PPC64
27 #include <linux/time.h>
28 #include <linux/hardirq.h>
29 #else
30 #include <linux/ptrace.h>
31 #endif
33 #include <asm/io.h>
34 #include <asm/page.h>
35 #include <asm/pgtable.h>
36 #include <asm/processor.h>
37 #include <asm/cputable.h>
38 #include <asm/thread_info.h>
39 #include <asm/rtas.h>
40 #include <asm/vdso_datapage.h>
41 #ifdef CONFIG_PPC64
42 #include <asm/paca.h>
43 #include <asm/lppaca.h>
44 #include <asm/cache.h>
45 #include <asm/compat.h>
46 #include <asm/mmu.h>
47 #include <asm/hvcall.h>
48 #endif
50 #define DEFINE(sym, val) \
51 asm volatile("\n->" #sym " %0 " #val : : "i" (val))
53 #define BLANK() asm volatile("\n->" : : )
55 int main(void)
57 DEFINE(THREAD, offsetof(struct task_struct, thread));
58 DEFINE(MM, offsetof(struct task_struct, mm));
59 #ifdef CONFIG_PPC64
60 DEFINE(AUDITCONTEXT, offsetof(struct task_struct, audit_context));
61 #else
62 DEFINE(THREAD_INFO, offsetof(struct task_struct, stack));
63 DEFINE(PTRACE, offsetof(struct task_struct, ptrace));
64 #endif /* CONFIG_PPC64 */
66 DEFINE(KSP, offsetof(struct thread_struct, ksp));
67 DEFINE(PT_REGS, offsetof(struct thread_struct, regs));
68 DEFINE(THREAD_FPEXC_MODE, offsetof(struct thread_struct, fpexc_mode));
69 DEFINE(THREAD_FPR0, offsetof(struct thread_struct, fpr[0]));
70 DEFINE(THREAD_FPSCR, offsetof(struct thread_struct, fpscr));
71 #ifdef CONFIG_ALTIVEC
72 DEFINE(THREAD_VR0, offsetof(struct thread_struct, vr[0]));
73 DEFINE(THREAD_VRSAVE, offsetof(struct thread_struct, vrsave));
74 DEFINE(THREAD_VSCR, offsetof(struct thread_struct, vscr));
75 DEFINE(THREAD_USED_VR, offsetof(struct thread_struct, used_vr));
76 #endif /* CONFIG_ALTIVEC */
77 #ifdef CONFIG_PPC64
78 DEFINE(KSP_VSID, offsetof(struct thread_struct, ksp_vsid));
79 #else /* CONFIG_PPC64 */
80 DEFINE(PGDIR, offsetof(struct thread_struct, pgdir));
81 #if defined(CONFIG_4xx) || defined(CONFIG_BOOKE)
82 DEFINE(THREAD_DBCR0, offsetof(struct thread_struct, dbcr0));
83 DEFINE(PT_PTRACED, PT_PTRACED);
84 #endif
85 #ifdef CONFIG_SPE
86 DEFINE(THREAD_EVR0, offsetof(struct thread_struct, evr[0]));
87 DEFINE(THREAD_ACC, offsetof(struct thread_struct, acc));
88 DEFINE(THREAD_SPEFSCR, offsetof(struct thread_struct, spefscr));
89 DEFINE(THREAD_USED_SPE, offsetof(struct thread_struct, used_spe));
90 #endif /* CONFIG_SPE */
91 #endif /* CONFIG_PPC64 */
93 DEFINE(TI_FLAGS, offsetof(struct thread_info, flags));
94 DEFINE(TI_LOCAL_FLAGS, offsetof(struct thread_info, local_flags));
95 DEFINE(TI_PREEMPT, offsetof(struct thread_info, preempt_count));
96 DEFINE(TI_TASK, offsetof(struct thread_info, task));
97 #ifdef CONFIG_PPC32
98 DEFINE(TI_EXECDOMAIN, offsetof(struct thread_info, exec_domain));
99 DEFINE(TI_CPU, offsetof(struct thread_info, cpu));
100 #endif /* CONFIG_PPC32 */
102 #ifdef CONFIG_PPC64
103 DEFINE(DCACHEL1LINESIZE, offsetof(struct ppc64_caches, dline_size));
104 DEFINE(DCACHEL1LOGLINESIZE, offsetof(struct ppc64_caches, log_dline_size));
105 DEFINE(DCACHEL1LINESPERPAGE, offsetof(struct ppc64_caches, dlines_per_page));
106 DEFINE(ICACHEL1LINESIZE, offsetof(struct ppc64_caches, iline_size));
107 DEFINE(ICACHEL1LOGLINESIZE, offsetof(struct ppc64_caches, log_iline_size));
108 DEFINE(ICACHEL1LINESPERPAGE, offsetof(struct ppc64_caches, ilines_per_page));
109 /* paca */
110 DEFINE(PACA_SIZE, sizeof(struct paca_struct));
111 DEFINE(PACAPACAINDEX, offsetof(struct paca_struct, paca_index));
112 DEFINE(PACAPROCSTART, offsetof(struct paca_struct, cpu_start));
113 DEFINE(PACAKSAVE, offsetof(struct paca_struct, kstack));
114 DEFINE(PACACURRENT, offsetof(struct paca_struct, __current));
115 DEFINE(PACASAVEDMSR, offsetof(struct paca_struct, saved_msr));
116 DEFINE(PACASTABREAL, offsetof(struct paca_struct, stab_real));
117 DEFINE(PACASTABVIRT, offsetof(struct paca_struct, stab_addr));
118 DEFINE(PACASTABRR, offsetof(struct paca_struct, stab_rr));
119 DEFINE(PACAR1, offsetof(struct paca_struct, saved_r1));
120 DEFINE(PACATOC, offsetof(struct paca_struct, kernel_toc));
121 DEFINE(PACASOFTIRQEN, offsetof(struct paca_struct, soft_enabled));
122 DEFINE(PACAHARDIRQEN, offsetof(struct paca_struct, hard_enabled));
123 DEFINE(PACASLBCACHE, offsetof(struct paca_struct, slb_cache));
124 DEFINE(PACASLBCACHEPTR, offsetof(struct paca_struct, slb_cache_ptr));
125 DEFINE(PACACONTEXTID, offsetof(struct paca_struct, context.id));
126 DEFINE(PACAVMALLOCSLLP, offsetof(struct paca_struct, vmalloc_sllp));
127 #ifdef CONFIG_PPC_MM_SLICES
128 DEFINE(PACALOWSLICESPSIZE, offsetof(struct paca_struct,
129 context.low_slices_psize));
130 DEFINE(PACAHIGHSLICEPSIZE, offsetof(struct paca_struct,
131 context.high_slices_psize));
132 DEFINE(MMUPSIZEDEFSIZE, sizeof(struct mmu_psize_def));
133 DEFINE(MMUPSIZESLLP, offsetof(struct mmu_psize_def, sllp));
134 #else
135 DEFINE(PACACONTEXTSLLP, offsetof(struct paca_struct, context.sllp));
137 #endif /* CONFIG_PPC_MM_SLICES */
138 DEFINE(PACA_EXGEN, offsetof(struct paca_struct, exgen));
139 DEFINE(PACA_EXMC, offsetof(struct paca_struct, exmc));
140 DEFINE(PACA_EXSLB, offsetof(struct paca_struct, exslb));
141 DEFINE(PACAEMERGSP, offsetof(struct paca_struct, emergency_sp));
142 DEFINE(PACALPPACAPTR, offsetof(struct paca_struct, lppaca_ptr));
143 DEFINE(PACAHWCPUID, offsetof(struct paca_struct, hw_cpu_id));
144 DEFINE(PACA_STARTPURR, offsetof(struct paca_struct, startpurr));
145 DEFINE(PACA_STARTSPURR, offsetof(struct paca_struct, startspurr));
146 DEFINE(PACA_USER_TIME, offsetof(struct paca_struct, user_time));
147 DEFINE(PACA_SYSTEM_TIME, offsetof(struct paca_struct, system_time));
148 DEFINE(PACA_SLBSHADOWPTR, offsetof(struct paca_struct, slb_shadow_ptr));
149 DEFINE(PACA_DATA_OFFSET, offsetof(struct paca_struct, data_offset));
150 DEFINE(PACA_TRAP_SAVE, offsetof(struct paca_struct, trap_save));
152 DEFINE(SLBSHADOW_STACKVSID,
153 offsetof(struct slb_shadow, save_area[SLB_NUM_BOLTED - 1].vsid));
154 DEFINE(SLBSHADOW_STACKESID,
155 offsetof(struct slb_shadow, save_area[SLB_NUM_BOLTED - 1].esid));
156 DEFINE(LPPACASRR0, offsetof(struct lppaca, saved_srr0));
157 DEFINE(LPPACASRR1, offsetof(struct lppaca, saved_srr1));
158 DEFINE(LPPACAANYINT, offsetof(struct lppaca, int_dword.any_int));
159 DEFINE(LPPACADECRINT, offsetof(struct lppaca, int_dword.fields.decr_int));
160 DEFINE(SLBSHADOW_SAVEAREA, offsetof(struct slb_shadow, save_area));
161 #endif /* CONFIG_PPC64 */
163 /* RTAS */
164 DEFINE(RTASBASE, offsetof(struct rtas_t, base));
165 DEFINE(RTASENTRY, offsetof(struct rtas_t, entry));
167 /* Interrupt register frame */
168 DEFINE(STACK_FRAME_OVERHEAD, STACK_FRAME_OVERHEAD);
169 #ifndef CONFIG_PPC64
170 DEFINE(INT_FRAME_SIZE, STACK_FRAME_OVERHEAD + sizeof(struct pt_regs));
171 #else /* CONFIG_PPC64 */
172 DEFINE(SWITCH_FRAME_SIZE, STACK_FRAME_OVERHEAD + sizeof(struct pt_regs));
173 /* 288 = # of volatile regs, int & fp, for leaf routines */
174 /* which do not stack a frame. See the PPC64 ABI. */
175 DEFINE(INT_FRAME_SIZE, STACK_FRAME_OVERHEAD + sizeof(struct pt_regs) + 288);
176 /* Create extra stack space for SRR0 and SRR1 when calling prom/rtas. */
177 DEFINE(PROM_FRAME_SIZE, STACK_FRAME_OVERHEAD + sizeof(struct pt_regs) + 16);
178 DEFINE(RTAS_FRAME_SIZE, STACK_FRAME_OVERHEAD + sizeof(struct pt_regs) + 16);
180 /* hcall statistics */
181 DEFINE(HCALL_STAT_SIZE, sizeof(struct hcall_stats));
182 DEFINE(HCALL_STAT_CALLS, offsetof(struct hcall_stats, num_calls));
183 DEFINE(HCALL_STAT_TB, offsetof(struct hcall_stats, tb_total));
184 DEFINE(HCALL_STAT_PURR, offsetof(struct hcall_stats, purr_total));
185 #endif /* CONFIG_PPC64 */
186 DEFINE(GPR0, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[0]));
187 DEFINE(GPR1, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[1]));
188 DEFINE(GPR2, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[2]));
189 DEFINE(GPR3, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[3]));
190 DEFINE(GPR4, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[4]));
191 DEFINE(GPR5, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[5]));
192 DEFINE(GPR6, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[6]));
193 DEFINE(GPR7, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[7]));
194 DEFINE(GPR8, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[8]));
195 DEFINE(GPR9, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[9]));
196 DEFINE(GPR10, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[10]));
197 DEFINE(GPR11, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[11]));
198 DEFINE(GPR12, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[12]));
199 DEFINE(GPR13, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[13]));
200 #ifndef CONFIG_PPC64
201 DEFINE(GPR14, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[14]));
202 DEFINE(GPR15, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[15]));
203 DEFINE(GPR16, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[16]));
204 DEFINE(GPR17, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[17]));
205 DEFINE(GPR18, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[18]));
206 DEFINE(GPR19, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[19]));
207 DEFINE(GPR20, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[20]));
208 DEFINE(GPR21, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[21]));
209 DEFINE(GPR22, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[22]));
210 DEFINE(GPR23, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[23]));
211 DEFINE(GPR24, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[24]));
212 DEFINE(GPR25, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[25]));
213 DEFINE(GPR26, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[26]));
214 DEFINE(GPR27, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[27]));
215 DEFINE(GPR28, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[28]));
216 DEFINE(GPR29, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[29]));
217 DEFINE(GPR30, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[30]));
218 DEFINE(GPR31, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[31]));
219 #endif /* CONFIG_PPC64 */
221 * Note: these symbols include _ because they overlap with special
222 * register names
224 DEFINE(_NIP, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, nip));
225 DEFINE(_MSR, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, msr));
226 DEFINE(_CTR, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, ctr));
227 DEFINE(_LINK, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, link));
228 DEFINE(_CCR, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, ccr));
229 DEFINE(_XER, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, xer));
230 DEFINE(_DAR, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, dar));
231 DEFINE(_DSISR, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, dsisr));
232 DEFINE(ORIG_GPR3, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, orig_gpr3));
233 DEFINE(RESULT, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, result));
234 DEFINE(_TRAP, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, trap));
235 #ifndef CONFIG_PPC64
236 DEFINE(_MQ, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, mq));
238 * The PowerPC 400-class & Book-E processors have neither the DAR
239 * nor the DSISR SPRs. Hence, we overload them to hold the similar
240 * DEAR and ESR SPRs for such processors. For critical interrupts
241 * we use them to hold SRR0 and SRR1.
243 DEFINE(_DEAR, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, dar));
244 DEFINE(_ESR, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, dsisr));
245 #else /* CONFIG_PPC64 */
246 DEFINE(SOFTE, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, softe));
248 /* These _only_ to be used with {PROM,RTAS}_FRAME_SIZE!!! */
249 DEFINE(_SRR0, STACK_FRAME_OVERHEAD+sizeof(struct pt_regs));
250 DEFINE(_SRR1, STACK_FRAME_OVERHEAD+sizeof(struct pt_regs)+8);
251 #endif /* CONFIG_PPC64 */
253 DEFINE(CLONE_VM, CLONE_VM);
254 DEFINE(CLONE_UNTRACED, CLONE_UNTRACED);
256 #ifndef CONFIG_PPC64
257 DEFINE(MM_PGD, offsetof(struct mm_struct, pgd));
258 #endif /* ! CONFIG_PPC64 */
260 /* About the CPU features table */
261 DEFINE(CPU_SPEC_ENTRY_SIZE, sizeof(struct cpu_spec));
262 DEFINE(CPU_SPEC_PVR_MASK, offsetof(struct cpu_spec, pvr_mask));
263 DEFINE(CPU_SPEC_PVR_VALUE, offsetof(struct cpu_spec, pvr_value));
264 DEFINE(CPU_SPEC_FEATURES, offsetof(struct cpu_spec, cpu_features));
265 DEFINE(CPU_SPEC_SETUP, offsetof(struct cpu_spec, cpu_setup));
266 DEFINE(CPU_SPEC_RESTORE, offsetof(struct cpu_spec, cpu_restore));
268 DEFINE(pbe_address, offsetof(struct pbe, address));
269 DEFINE(pbe_orig_address, offsetof(struct pbe, orig_address));
270 DEFINE(pbe_next, offsetof(struct pbe, next));
272 #ifndef CONFIG_PPC64
273 DEFINE(TASK_SIZE, TASK_SIZE);
274 DEFINE(NUM_USER_SEGMENTS, TASK_SIZE>>28);
275 #endif /* ! CONFIG_PPC64 */
277 /* datapage offsets for use by vdso */
278 DEFINE(CFG_TB_ORIG_STAMP, offsetof(struct vdso_data, tb_orig_stamp));
279 DEFINE(CFG_TB_TICKS_PER_SEC, offsetof(struct vdso_data, tb_ticks_per_sec));
280 DEFINE(CFG_TB_TO_XS, offsetof(struct vdso_data, tb_to_xs));
281 DEFINE(CFG_STAMP_XSEC, offsetof(struct vdso_data, stamp_xsec));
282 DEFINE(CFG_TB_UPDATE_COUNT, offsetof(struct vdso_data, tb_update_count));
283 DEFINE(CFG_TZ_MINUTEWEST, offsetof(struct vdso_data, tz_minuteswest));
284 DEFINE(CFG_TZ_DSTTIME, offsetof(struct vdso_data, tz_dsttime));
285 DEFINE(CFG_SYSCALL_MAP32, offsetof(struct vdso_data, syscall_map_32));
286 DEFINE(WTOM_CLOCK_SEC, offsetof(struct vdso_data, wtom_clock_sec));
287 DEFINE(WTOM_CLOCK_NSEC, offsetof(struct vdso_data, wtom_clock_nsec));
288 DEFINE(CFG_ICACHE_BLOCKSZ, offsetof(struct vdso_data, icache_block_size));
289 DEFINE(CFG_DCACHE_BLOCKSZ, offsetof(struct vdso_data, dcache_block_size));
290 DEFINE(CFG_ICACHE_LOGBLOCKSZ, offsetof(struct vdso_data, icache_log_block_size));
291 DEFINE(CFG_DCACHE_LOGBLOCKSZ, offsetof(struct vdso_data, dcache_log_block_size));
292 #ifdef CONFIG_PPC64
293 DEFINE(CFG_SYSCALL_MAP64, offsetof(struct vdso_data, syscall_map_64));
294 DEFINE(TVAL64_TV_SEC, offsetof(struct timeval, tv_sec));
295 DEFINE(TVAL64_TV_USEC, offsetof(struct timeval, tv_usec));
296 DEFINE(TVAL32_TV_SEC, offsetof(struct compat_timeval, tv_sec));
297 DEFINE(TVAL32_TV_USEC, offsetof(struct compat_timeval, tv_usec));
298 DEFINE(TSPC64_TV_SEC, offsetof(struct timespec, tv_sec));
299 DEFINE(TSPC64_TV_NSEC, offsetof(struct timespec, tv_nsec));
300 DEFINE(TSPC32_TV_SEC, offsetof(struct compat_timespec, tv_sec));
301 DEFINE(TSPC32_TV_NSEC, offsetof(struct compat_timespec, tv_nsec));
302 #else
303 DEFINE(TVAL32_TV_SEC, offsetof(struct timeval, tv_sec));
304 DEFINE(TVAL32_TV_USEC, offsetof(struct timeval, tv_usec));
305 DEFINE(TSPC32_TV_SEC, offsetof(struct timespec, tv_sec));
306 DEFINE(TSPC32_TV_NSEC, offsetof(struct timespec, tv_nsec));
307 #endif
308 /* timeval/timezone offsets for use by vdso */
309 DEFINE(TZONE_TZ_MINWEST, offsetof(struct timezone, tz_minuteswest));
310 DEFINE(TZONE_TZ_DSTTIME, offsetof(struct timezone, tz_dsttime));
312 /* Other bits used by the vdso */
313 DEFINE(CLOCK_REALTIME, CLOCK_REALTIME);
314 DEFINE(CLOCK_MONOTONIC, CLOCK_MONOTONIC);
315 DEFINE(NSEC_PER_SEC, NSEC_PER_SEC);
316 DEFINE(CLOCK_REALTIME_RES, MONOTONIC_RES_NSEC);
318 #ifdef CONFIG_BUG
319 DEFINE(BUG_ENTRY_SIZE, sizeof(struct bug_entry));
320 #endif
322 #ifdef CONFIG_PPC_ISERIES
323 /* the assembler miscalculates the VSID values */
324 DEFINE(PAGE_OFFSET_ESID, GET_ESID(PAGE_OFFSET));
325 DEFINE(PAGE_OFFSET_VSID, KERNEL_VSID(PAGE_OFFSET));
326 DEFINE(VMALLOC_START_ESID, GET_ESID(VMALLOC_START));
327 DEFINE(VMALLOC_START_VSID, KERNEL_VSID(VMALLOC_START));
328 #endif
330 DEFINE(PGD_TABLE_SIZE, PGD_TABLE_SIZE);
332 return 0;