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 * ------------------------------------------------------------------------*/
18 // We need offsets of profiled things... better be careful that this
19 // doesn't affect the offsets of anything else.
26 #define str(a,b) #a "_" #b
28 #define OFFSET(s_type, field) ((unsigned int)&(((s_type*)0)->field))
30 #if defined(GEN_HASKELL)
31 #define def_offset(str, offset) \
32 printf("oFFSET_" str " = %d::Int\n", offset);
34 #define def_offset(str, offset) \
35 printf("#define OFFSET_" str " %d\n", offset);
38 #if defined(GEN_HASKELL)
39 #define ctype(type) /* nothing */
42 printf("#define SIZEOF_" #type " %d\n", sizeof(type));
45 #if defined(GEN_HASKELL)
46 #define field_type_(str, s_type, field) /* nothing */
48 #define field_type_(str, s_type, field) \
49 printf("#define REP_" str " I"); \
50 printf("%d\n", sizeof (__typeof__(((((s_type*)0)->field)))) * 8);
53 #define field_type(s_type, field) \
54 field_type_(str(s_type,field),s_type,field);
56 #define field_offset_(str, s_type, field) \
57 def_offset(str, OFFSET(s_type,field));
59 #define field_offset(s_type, field) \
60 field_offset_(str(s_type,field),s_type,field);
62 // An access macro for use in C-- sources.
63 #define struct_field_macro(str) \
64 printf("#define " str "(__ptr__) REP_" str "[__ptr__+OFFSET_" str "]\n");
66 // Outputs the byte offset and MachRep for a field
67 #define struct_field(s_type, field) \
68 field_offset(s_type, field); \
69 field_type(s_type, field); \
70 struct_field_macro(str(s_type,field))
72 #define struct_field_(str, s_type, field) \
73 field_offset_(str, s_type, field); \
74 field_type_(str, s_type, field); \
75 struct_field_macro(str)
77 #if defined(GEN_HASKELL)
78 #define def_size(str, size) \
79 printf("sIZEOF_" str " = %d::Int\n", size);
81 #define def_size(str, size) \
82 printf("#define SIZEOF_" str " %d\n", size);
85 #if defined(GEN_HASKELL)
86 #define def_closure_size(str, size) /* nothing */
88 #define def_closure_size(str, size) \
89 printf("#define SIZEOF_" str " (SIZEOF_StgHeader+%d)\n", size);
92 #define struct_size(s_type) \
93 def_size(#s_type, sizeof(s_type));
95 // Size of a closure type, minus the header, named SIZEOF_<type>_NoHdr
96 // Also, we #define SIZEOF_<type> to be the size of the whole closure for .cmm.
97 #define closure_size(s_type) \
98 def_size(#s_type "_NoHdr", sizeof(s_type) - sizeof(StgHeader)); \
99 def_closure_size(#s_type, sizeof(s_type) - sizeof(StgHeader));
101 // An access macro for use in C-- sources.
102 #define closure_field_macro(str) \
103 printf("#define " str "(__ptr__) REP_" str "[__ptr__+SIZEOF_StgHeader+OFFSET_" str "]\n");
105 #define closure_field_offset_(str, s_type,field) \
106 def_offset(str, OFFSET(s_type,field) - sizeof(StgHeader));
108 #define closure_field_offset(s_type,field) \
109 closure_field_offset_(str(s_type,field),s_type,field);
111 #define closure_payload_macro(str) \
112 printf("#define " str "(__ptr__,__ix__) W_[__ptr__+SIZEOF_StgHeader+OFFSET_" str " + WDS(__ix__)]\n");
114 #define closure_payload(s_type,field) \
115 closure_field_offset_(str(s_type,field),s_type,field); \
116 closure_payload_macro(str(s_type,field));
118 // Byte offset and MachRep for a closure field, minus the header
119 #define closure_field(s_type, field) \
120 closure_field_offset(s_type,field) \
121 field_type(s_type, field); \
122 closure_field_macro(str(s_type,field))
124 // Byte offset and MachRep for a closure field, minus the header
125 #define closure_field_(str, s_type, field) \
126 closure_field_offset_(str,s_type,field) \
127 field_type_(str, s_type, field); \
128 closure_field_macro(str)
130 // Byte offset and MachRep for a TSO field, minus the header and
131 // variable prof bit.
132 #define tso_offset(s_type, field) \
133 def_offset(str(s_type,field), OFFSET(s_type,field) - sizeof(StgHeader) - sizeof(StgTSOProfInfo));
135 #define tso_field_macro(str) \
136 printf("#define " str "(__ptr__) REP_" str "[__ptr__+SIZEOF_StgHeader+SIZEOF_OPT_StgTSOProfInfo+SIZEOF_OPT_StgTSOParInfo+SIZEOF_OPT_StgTSOGranInfo+SIZEOF_OPT_StgTSODistInfo+OFFSET_" str "]\n");
138 #define tso_field(s_type, field) \
139 tso_offset(s_type, field); \
140 field_type(s_type, field); \
141 tso_field_macro(str(s_type,field))
143 #define opt_struct_size(s_type, option) \
144 printf("#ifdef " #option "\n"); \
145 printf("#define SIZEOF_OPT_" #s_type " SIZEOF_" #s_type "\n"); \
147 printf("#define SIZEOF_OPT_" #s_type " 0\n"); \
148 printf("#endif\n\n");
150 #define FUN_OFFSET(sym) (OFFSET(Capability,f.sym) - OFFSET(Capability,r))
154 main(int argc, char *argv[])
157 printf("/* This file is created automatically. Do not edit by hand.*/\n\n");
159 printf("#define STD_HDR_SIZE %d\n", sizeofW(StgHeader) - sizeofW(StgProfHeader));
160 // grrr.. PROFILING is on so we need to subtract sizeofW(StgProfHeader)
161 printf("#define PROF_HDR_SIZE %d\n", sizeofW(StgProfHeader));
162 printf("#define GRAN_HDR_SIZE %d\n", sizeofW(StgGranHeader));
164 printf("#define STD_ITBL_SIZE %d\n", sizeofW(StgInfoTable));
165 printf("#define RET_ITBL_SIZE %d\n", sizeofW(StgRetInfoTable) - sizeofW(StgInfoTable));
166 printf("#define PROF_ITBL_SIZE %d\n", sizeofW(StgProfInfo));
168 printf("#define GRAN_ITBL_SIZE %d\n", 0);
169 printf("#define TICKY_ITBL_SIZE %d\n", 0);
171 printf("#define BLOCK_SIZE %d\n", BLOCK_SIZE);
172 printf("#define MBLOCK_SIZE %d\n", MBLOCK_SIZE);
177 field_offset(StgRegTable, rR1);
178 field_offset(StgRegTable, rR2);
179 field_offset(StgRegTable, rR3);
180 field_offset(StgRegTable, rR4);
181 field_offset(StgRegTable, rR5);
182 field_offset(StgRegTable, rR6);
183 field_offset(StgRegTable, rR7);
184 field_offset(StgRegTable, rR8);
185 field_offset(StgRegTable, rR9);
186 field_offset(StgRegTable, rR10);
187 field_offset(StgRegTable, rF1);
188 field_offset(StgRegTable, rF2);
189 field_offset(StgRegTable, rF3);
190 field_offset(StgRegTable, rF4);
191 field_offset(StgRegTable, rD1);
192 field_offset(StgRegTable, rD2);
193 #ifdef SUPPORT_LONG_LONGS
194 field_offset(StgRegTable, rL1);
196 field_offset(StgRegTable, rSp);
197 field_offset(StgRegTable, rSpLim);
198 field_offset(StgRegTable, rHp);
199 field_offset(StgRegTable, rHpLim);
200 field_offset(StgRegTable, rCurrentTSO);
201 field_offset(StgRegTable, rCurrentNursery);
202 field_offset(StgRegTable, rHpAlloc);
204 def_offset("stgGCEnter1", FUN_OFFSET(stgGCEnter1));
205 def_offset("stgGCFun", FUN_OFFSET(stgGCFun));
207 field_offset(Capability, r);
209 struct_field(bdescr, start);
210 struct_field(bdescr, free);
211 struct_field(bdescr, blocks);
212 struct_field(bdescr, gen_no);
213 struct_field(bdescr, link);
215 struct_size(generation);
216 struct_field(generation, mut_once_list);
218 struct_field(CostCentreStack, ccsID);
219 struct_field(CostCentreStack, mem_alloc);
220 struct_field(CostCentreStack, scc_count);
221 struct_field(CostCentreStack, prevStack);
223 struct_field(CostCentre, ccID);
224 struct_field(CostCentre, link);
226 struct_field(StgHeader, info);
227 struct_field_("StgHeader_ccs", StgHeader, prof.ccs);
228 struct_field_("StgHeader_ldvw", StgHeader, prof.hp.ldvw);
230 closure_payload(StgClosure,payload);
232 struct_field(StgEntCounter, allocs);
233 struct_field(StgEntCounter, registeredp);
234 struct_field(StgEntCounter, link);
236 closure_size(StgUpdateFrame);
237 closure_size(StgCatchFrame);
238 closure_size(StgStopFrame);
240 closure_size(StgMutArrPtrs);
241 closure_field(StgMutArrPtrs, ptrs);
243 closure_size(StgArrWords);
244 closure_field(StgArrWords, words);
245 closure_payload(StgArrWords, payload);
247 closure_field(StgTSO, link);
248 closure_field(StgTSO, mut_link);
249 closure_field(StgTSO, global_link);
250 closure_field(StgTSO, what_next);
251 closure_field(StgTSO, why_blocked);
252 closure_field(StgTSO, block_info);
253 closure_field(StgTSO, blocked_exceptions);
254 closure_field(StgTSO, id);
255 closure_field(StgTSO, saved_errno);
256 closure_field(StgTSO, trec);
257 closure_field_("StgTSO_CCCS", StgTSO, prof.CCCS);
258 tso_field(StgTSO, sp);
259 tso_offset(StgTSO, stack);
260 tso_field(StgTSO, stack_size);
262 struct_size(StgTSOProfInfo);
263 struct_size(StgTSOParInfo);
264 struct_size(StgTSOGranInfo);
265 struct_size(StgTSODistInfo);
267 opt_struct_size(StgTSOProfInfo,PROFILING);
268 opt_struct_size(StgTSOParInfo,PAR);
269 opt_struct_size(StgTSOGranInfo,GRAN);
270 opt_struct_size(StgTSODistInfo,DIST);
272 closure_size(StgBlockingQueue);
273 closure_field(StgBlockingQueue, blocking_queue);
275 closure_field(StgUpdateFrame, updatee);
277 closure_field(StgCatchFrame, handler);
278 closure_field(StgCatchFrame, exceptions_blocked);
280 closure_size(StgPAP);
281 closure_field(StgPAP, n_args);
282 closure_field(StgPAP, fun);
283 closure_field(StgPAP, arity);
284 closure_payload(StgPAP, payload);
287 closure_field(StgAP, n_args);
288 closure_field(StgAP, fun);
289 closure_payload(StgAP, payload);
291 closure_size(StgAP_STACK);
292 closure_field(StgAP_STACK, size);
293 closure_field(StgAP_STACK, fun);
294 closure_payload(StgAP_STACK, payload);
296 closure_field(StgInd, indirectee);
297 closure_field(StgMutClosure, mut_link);
299 closure_size(StgMutVar);
300 closure_field(StgMutVar, var);
302 closure_size(StgAtomicallyFrame);
303 closure_field(StgAtomicallyFrame, waiting);
304 closure_field(StgAtomicallyFrame, code);
306 closure_size(StgCatchSTMFrame);
307 closure_field(StgCatchSTMFrame, handler);
309 closure_size(StgCatchRetryFrame);
310 closure_field(StgCatchRetryFrame, running_alt_code);
311 closure_field(StgCatchRetryFrame, first_code);
312 closure_field(StgCatchRetryFrame, alt_code);
313 closure_field(StgCatchRetryFrame, first_code_trec);
315 closure_size(StgForeignObj);
316 closure_field(StgForeignObj,data);
318 closure_size(StgWeak);
319 closure_field(StgWeak,link);
320 closure_field(StgWeak,key);
321 closure_field(StgWeak,value);
322 closure_field(StgWeak,finalizer);
324 closure_size(StgDeadWeak);
325 closure_field(StgDeadWeak,link);
327 closure_size(StgMVar);
328 closure_field(StgMVar,head);
329 closure_field(StgMVar,tail);
330 closure_field(StgMVar,value);
332 closure_size(StgTVar);
333 closure_field(StgTVar,current_value);
334 closure_field(StgTVar,first_wait_queue_entry);
336 closure_size(StgBCO);
337 closure_field(StgBCO, instrs);
338 closure_field(StgBCO, literals);
339 closure_field(StgBCO, ptrs);
340 closure_field(StgBCO, itbls);
341 closure_field(StgBCO, arity);
342 closure_field(StgBCO, size);
343 closure_payload(StgBCO, bitmap);
345 closure_size(StgStableName);
346 closure_field(StgStableName,sn);
348 struct_field_("RtsFlags_ProfFlags_showCCSOnException",
349 RTS_FLAGS, ProfFlags.showCCSOnException);
350 struct_field_("RtsFlags_DebugFlags_apply",
351 RTS_FLAGS, DebugFlags.apply);
352 struct_field_("RtsFlags_DebugFlags_sanity",
353 RTS_FLAGS, DebugFlags.sanity);
354 struct_field_("RtsFlags_DebugFlags_weak",
355 RTS_FLAGS, DebugFlags.weak);
356 struct_field_("RtsFlags_GcFlags_initialStkSize",
357 RTS_FLAGS, GcFlags.initialStkSize);
359 struct_size(StgFunInfoExtraFwd);
360 struct_field(StgFunInfoExtraFwd, slow_apply);
361 struct_field(StgFunInfoExtraFwd, fun_type);
362 struct_field(StgFunInfoExtraFwd, arity);
363 struct_field(StgFunInfoExtraFwd, bitmap);
365 struct_size(StgFunInfoExtraRev);
366 struct_field(StgFunInfoExtraRev, slow_apply_offset);
367 struct_field(StgFunInfoExtraRev, fun_type);
368 struct_field(StgFunInfoExtraRev, arity);
369 struct_field(StgFunInfoExtraRev, bitmap);
371 struct_field(StgLargeBitmap, size);
372 field_offset(StgLargeBitmap, bitmap);
374 struct_size(snEntry);
375 struct_field(snEntry,sn_obj);
376 struct_field(snEntry,addr);
378 #ifdef mingw32_TARGET_OS
379 struct_size(StgAsyncIOResult);
380 struct_field(StgAsyncIOResult, reqID);
381 struct_field(StgAsyncIOResult, len);
382 struct_field(StgAsyncIOResult, errCode);
386 struct_field(MP_INT,_mp_alloc);
387 struct_field(MP_INT,_mp_size);
388 struct_field(MP_INT,_mp_d);