1 /* --------------------------------------------------------------------------
3 * (c) The GHC Team, 1992-2004
7 * Basically this is a C program that extracts information from the C
8 * declarations in the header files (primarily struct field offsets)
9 * and generates a header file that can be #included into non-C source
10 * containing this information.
12 * ------------------------------------------------------------------------*/
17 * We need offsets of profiled things... better be careful that this
18 * doesn't affect the offsets of anything else.
27 #include "OSThreads.h"
28 #include "Capability.h"
32 #define str(a,b) #a "_" #b
34 #define OFFSET(s_type, field) ((unsigned int)&(((s_type*)0)->field))
36 #if defined(GEN_HASKELL)
37 #define def_offset(str, offset) \
38 printf("oFFSET_" str " = %d::Int\n", offset);
40 #define def_offset(str, offset) \
41 printf("#define OFFSET_" str " %d\n", offset);
44 #if defined(GEN_HASKELL)
45 #define ctype(type) /* nothing */
48 printf("#define SIZEOF_" #type " %d\n", sizeof(type));
51 #if defined(GEN_HASKELL)
52 #define field_type_(str, s_type, field) /* nothing */
54 #define field_type_(str, s_type, field) \
55 printf("#define REP_" str " I"); \
56 printf("%d\n", sizeof (__typeof__(((((s_type*)0)->field)))) * 8);
59 #define field_type(s_type, field) \
60 field_type_(str(s_type,field),s_type,field);
62 #define field_offset_(str, s_type, field) \
63 def_offset(str, OFFSET(s_type,field));
65 #define field_offset(s_type, field) \
66 field_offset_(str(s_type,field),s_type,field);
68 /* An access macro for use in C-- sources. */
69 #define struct_field_macro(str) \
70 printf("#define " str "(__ptr__) REP_" str "[__ptr__+OFFSET_" str "]\n");
72 /* Outputs the byte offset and MachRep for a field */
73 #define struct_field(s_type, field) \
74 field_offset(s_type, field); \
75 field_type(s_type, field); \
76 struct_field_macro(str(s_type,field))
78 #define struct_field_(str, s_type, field) \
79 field_offset_(str, s_type, field); \
80 field_type_(str, s_type, field); \
81 struct_field_macro(str)
83 #if defined(GEN_HASKELL)
84 #define def_size(str, size) \
85 printf("sIZEOF_" str " = %d::Int\n", size);
87 #define def_size(str, size) \
88 printf("#define SIZEOF_" str " %d\n", size);
91 #if defined(GEN_HASKELL)
92 #define def_closure_size(str, size) /* nothing */
94 #define def_closure_size(str, size) \
95 printf("#define SIZEOF_" str " (SIZEOF_StgHeader+%d)\n", size);
98 #define struct_size(s_type) \
99 def_size(#s_type, sizeof(s_type));
102 * Size of a closure type, minus the header, named SIZEOF_<type>_NoHdr
103 * Also, we #define SIZEOF_<type> to be the size of the whole closure for .cmm.
105 #define closure_size(s_type) \
106 def_size(#s_type "_NoHdr", sizeof(s_type) - sizeof(StgHeader)); \
107 def_closure_size(#s_type, sizeof(s_type) - sizeof(StgHeader));
109 #define thunk_size(s_type) \
110 def_size(#s_type "_NoThunkHdr", sizeof(s_type) - sizeof(StgThunkHeader)); \
113 /* An access macro for use in C-- sources. */
114 #define closure_field_macro(str) \
115 printf("#define " str "(__ptr__) REP_" str "[__ptr__+SIZEOF_StgHeader+OFFSET_" str "]\n");
117 #define closure_field_offset_(str, s_type,field) \
118 def_offset(str, OFFSET(s_type,field) - sizeof(StgHeader));
120 #define closure_field_offset(s_type,field) \
121 closure_field_offset_(str(s_type,field),s_type,field)
123 #define closure_payload_macro(str) \
124 printf("#define " str "(__ptr__,__ix__) W_[__ptr__+SIZEOF_StgHeader+OFFSET_" str " + WDS(__ix__)]\n");
126 #define closure_payload(s_type,field) \
127 closure_field_offset_(str(s_type,field),s_type,field); \
128 closure_payload_macro(str(s_type,field));
130 /* Byte offset and MachRep for a closure field, minus the header */
131 #define closure_field(s_type, field) \
132 closure_field_offset(s_type,field) \
133 field_type(s_type, field); \
134 closure_field_macro(str(s_type,field))
136 /* Byte offset and MachRep for a closure field, minus the header */
137 #define closure_field_(str, s_type, field) \
138 closure_field_offset_(str,s_type,field) \
139 field_type_(str, s_type, field); \
140 closure_field_macro(str)
142 /* Byte offset for a TSO field, minus the header and variable prof bit. */
143 #define tso_payload_offset(s_type, field) \
144 def_offset(str(s_type,field), OFFSET(s_type,field) - sizeof(StgHeader) - sizeof(StgTSOProfInfo));
146 /* Full byte offset for a TSO field, for use from Cmm */
147 #define tso_field_offset_macro(str) \
148 printf("#define TSO_OFFSET_" str " (SIZEOF_StgHeader+SIZEOF_OPT_StgTSOProfInfo+SIZEOF_OPT_StgTSOParInfo+SIZEOF_OPT_StgTSOGranInfo+SIZEOF_OPT_StgTSODistInfo+OFFSET_" str ")\n");
150 #define tso_field_offset(s_type, field) \
151 tso_payload_offset(s_type, field); \
152 tso_field_offset_macro(str(s_type,field));
154 #define tso_field_macro(str) \
155 printf("#define " str "(__ptr__) REP_" str "[__ptr__+TSO_OFFSET_" str "]\n")
156 #define tso_field(s_type, field) \
157 field_type(s_type, field); \
158 tso_field_offset(s_type,field); \
159 tso_field_macro(str(s_type,field))
161 #define opt_struct_size(s_type, option) \
162 printf("#ifdef " #option "\n"); \
163 printf("#define SIZEOF_OPT_" #s_type " SIZEOF_" #s_type "\n"); \
165 printf("#define SIZEOF_OPT_" #s_type " 0\n"); \
166 printf("#endif\n\n");
168 #define FUN_OFFSET(sym) (OFFSET(Capability,f.sym) - OFFSET(Capability,r))
172 main(int argc, char *argv[])
175 printf("/* This file is created automatically. Do not edit by hand.*/\n\n");
177 printf("#define STD_HDR_SIZE %d\n", sizeofW(StgHeader) - sizeofW(StgProfHeader));
178 /* grrr.. PROFILING is on so we need to subtract sizeofW(StgProfHeader) */
179 printf("#define PROF_HDR_SIZE %d\n", sizeofW(StgProfHeader));
180 printf("#define GRAN_HDR_SIZE %d\n", sizeofW(StgGranHeader));
182 printf("#define BLOCK_SIZE %d\n", BLOCK_SIZE);
183 printf("#define MBLOCK_SIZE %d\n", MBLOCK_SIZE);
188 field_offset(StgRegTable, rR1);
189 field_offset(StgRegTable, rR2);
190 field_offset(StgRegTable, rR3);
191 field_offset(StgRegTable, rR4);
192 field_offset(StgRegTable, rR5);
193 field_offset(StgRegTable, rR6);
194 field_offset(StgRegTable, rR7);
195 field_offset(StgRegTable, rR8);
196 field_offset(StgRegTable, rR9);
197 field_offset(StgRegTable, rR10);
198 field_offset(StgRegTable, rF1);
199 field_offset(StgRegTable, rF2);
200 field_offset(StgRegTable, rF3);
201 field_offset(StgRegTable, rF4);
202 field_offset(StgRegTable, rD1);
203 field_offset(StgRegTable, rD2);
204 field_offset(StgRegTable, rL1);
205 field_offset(StgRegTable, rSp);
206 field_offset(StgRegTable, rSpLim);
207 field_offset(StgRegTable, rHp);
208 field_offset(StgRegTable, rHpLim);
209 field_offset(StgRegTable, rCurrentTSO);
210 field_offset(StgRegTable, rCurrentNursery);
211 field_offset(StgRegTable, rHpAlloc);
212 struct_field(StgRegTable, rRet);
214 // Needed for SMP builds
215 field_offset(StgRegTable, rmp_tmp_w);
216 field_offset(StgRegTable, rmp_tmp1);
217 field_offset(StgRegTable, rmp_tmp2);
218 field_offset(StgRegTable, rmp_result1);
219 field_offset(StgRegTable, rmp_result2);
221 def_offset("stgGCEnter1", FUN_OFFSET(stgGCEnter1));
222 def_offset("stgGCFun", FUN_OFFSET(stgGCFun));
224 field_offset(Capability, r);
225 field_offset(Capability, lock);
226 struct_field(Capability, mut_lists);
228 struct_field(bdescr, start);
229 struct_field(bdescr, free);
230 struct_field(bdescr, blocks);
231 struct_field(bdescr, gen_no);
232 struct_field(bdescr, link);
234 struct_size(generation);
235 struct_field(generation, mut_list);
237 struct_size(CostCentreStack);
238 struct_field(CostCentreStack, ccsID);
239 struct_field(CostCentreStack, mem_alloc);
240 struct_field(CostCentreStack, scc_count);
241 struct_field(CostCentreStack, prevStack);
243 struct_field(CostCentre, ccID);
244 struct_field(CostCentre, link);
246 struct_field(StgHeader, info);
247 struct_field_("StgHeader_ccs", StgHeader, prof.ccs);
248 struct_field_("StgHeader_ldvw", StgHeader, prof.hp.ldvw);
250 struct_size(StgSMPThunkHeader);
252 closure_payload(StgClosure,payload);
254 struct_field(StgEntCounter, allocs);
255 struct_field(StgEntCounter, registeredp);
256 struct_field(StgEntCounter, link);
257 struct_field(StgEntCounter, entry_count);
259 closure_size(StgUpdateFrame);
260 closure_size(StgCatchFrame);
261 closure_size(StgStopFrame);
263 closure_size(StgMutArrPtrs);
264 closure_field(StgMutArrPtrs, ptrs);
266 closure_size(StgArrWords);
267 closure_field(StgArrWords, words);
268 closure_payload(StgArrWords, payload);
270 closure_field(StgTSO, link);
271 closure_field(StgTSO, global_link);
272 closure_field(StgTSO, what_next);
273 closure_field(StgTSO, why_blocked);
274 closure_field(StgTSO, block_info);
275 closure_field(StgTSO, blocked_exceptions);
276 closure_field(StgTSO, id);
277 closure_field(StgTSO, cap);
278 closure_field(StgTSO, saved_errno);
279 closure_field(StgTSO, trec);
280 closure_field(StgTSO, flags);
281 closure_field_("StgTSO_CCCS", StgTSO, prof.CCCS);
282 tso_field(StgTSO, sp);
283 tso_field_offset(StgTSO, stack);
284 tso_field(StgTSO, stack_size);
286 struct_size(StgTSOProfInfo);
287 struct_size(StgTSOParInfo);
288 struct_size(StgTSOGranInfo);
289 struct_size(StgTSODistInfo);
291 opt_struct_size(StgTSOProfInfo,PROFILING);
292 opt_struct_size(StgTSOParInfo,PAR);
293 opt_struct_size(StgTSOGranInfo,GRAN);
294 opt_struct_size(StgTSODistInfo,DIST);
296 closure_field(StgUpdateFrame, updatee);
298 closure_field(StgCatchFrame, handler);
299 closure_field(StgCatchFrame, exceptions_blocked);
301 closure_size(StgPAP);
302 closure_field(StgPAP, n_args);
303 closure_field(StgPAP, fun);
304 closure_field(StgPAP, arity);
305 closure_payload(StgPAP, payload);
308 closure_field(StgAP, n_args);
309 closure_field(StgAP, fun);
310 closure_payload(StgAP, payload);
312 thunk_size(StgAP_STACK);
313 closure_field(StgAP_STACK, size);
314 closure_field(StgAP_STACK, fun);
315 closure_payload(StgAP_STACK, payload);
317 thunk_size(StgSelector);
319 closure_field(StgInd, indirectee);
321 closure_size(StgMutVar);
322 closure_field(StgMutVar, var);
324 closure_size(StgAtomicallyFrame);
325 closure_field(StgAtomicallyFrame, code);
326 closure_field(StgAtomicallyFrame, next_invariant_to_check);
328 closure_field(StgInvariantCheckQueue, invariant);
329 closure_field(StgInvariantCheckQueue, my_execution);
330 closure_field(StgInvariantCheckQueue, next_queue_entry);
332 closure_field(StgAtomicInvariant, code);
334 closure_size(StgCatchSTMFrame);
335 closure_field(StgCatchSTMFrame, handler);
336 closure_field(StgCatchSTMFrame, code);
338 closure_size(StgCatchRetryFrame);
339 closure_field(StgCatchRetryFrame, running_alt_code);
340 closure_field(StgCatchRetryFrame, first_code);
341 closure_field(StgCatchRetryFrame, alt_code);
343 closure_field(StgTVarWatchQueue, closure);
344 closure_field(StgTVarWatchQueue, next_queue_entry);
345 closure_field(StgTVarWatchQueue, prev_queue_entry);
347 closure_size(StgWeak);
348 closure_field(StgWeak,link);
349 closure_field(StgWeak,key);
350 closure_field(StgWeak,value);
351 closure_field(StgWeak,finalizer);
353 closure_size(StgDeadWeak);
354 closure_field(StgDeadWeak,link);
356 closure_size(StgMVar);
357 closure_field(StgMVar,head);
358 closure_field(StgMVar,tail);
359 closure_field(StgMVar,value);
361 closure_size(StgBCO);
362 closure_field(StgBCO, instrs);
363 closure_field(StgBCO, literals);
364 closure_field(StgBCO, ptrs);
365 closure_field(StgBCO, arity);
366 closure_field(StgBCO, size);
367 closure_payload(StgBCO, bitmap);
369 closure_size(StgStableName);
370 closure_field(StgStableName,sn);
372 struct_field_("RtsFlags_ProfFlags_showCCSOnException",
373 RTS_FLAGS, ProfFlags.showCCSOnException);
374 struct_field_("RtsFlags_DebugFlags_apply",
375 RTS_FLAGS, DebugFlags.apply);
376 struct_field_("RtsFlags_DebugFlags_sanity",
377 RTS_FLAGS, DebugFlags.sanity);
378 struct_field_("RtsFlags_DebugFlags_weak",
379 RTS_FLAGS, DebugFlags.weak);
380 struct_field_("RtsFlags_GcFlags_initialStkSize",
381 RTS_FLAGS, GcFlags.initialStkSize);
382 struct_field_("RtsFlags_MiscFlags_tickInterval",
383 RTS_FLAGS, MiscFlags.tickInterval);
385 struct_size(StgFunInfoExtraFwd);
386 struct_field(StgFunInfoExtraFwd, slow_apply);
387 struct_field(StgFunInfoExtraFwd, fun_type);
388 struct_field(StgFunInfoExtraFwd, arity);
389 struct_field_("StgFunInfoExtraFwd_bitmap", StgFunInfoExtraFwd, b.bitmap);
391 struct_size(StgFunInfoExtraRev);
392 struct_field(StgFunInfoExtraRev, slow_apply_offset);
393 struct_field(StgFunInfoExtraRev, fun_type);
394 struct_field(StgFunInfoExtraRev, arity);
395 struct_field_("StgFunInfoExtraRev_bitmap", StgFunInfoExtraRev, b.bitmap);
397 struct_field(StgLargeBitmap, size);
398 field_offset(StgLargeBitmap, bitmap);
400 struct_size(snEntry);
401 struct_field(snEntry,sn_obj);
402 struct_field(snEntry,addr);
404 #ifdef mingw32_HOST_OS
405 struct_size(StgAsyncIOResult);
406 struct_field(StgAsyncIOResult, reqID);
407 struct_field(StgAsyncIOResult, len);
408 struct_field(StgAsyncIOResult, errCode);
412 struct_field(MP_INT,_mp_alloc);
413 struct_field(MP_INT,_mp_size);
414 struct_field(MP_INT,_mp_d);