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| 1 : | anton | 1.1 | /* command line interpretation, image loading etc. for Gforth |
| 2 : | |||
| 3 : | |||
| 4 : | anton | 1.103 | Copyright (C) 1995,1996,1997,1998,2000,2003 Free Software Foundation, Inc. |
| 5 : | anton | 1.1 | |
| 6 : | This file is part of Gforth. | ||
| 7 : | |||
| 8 : | Gforth is free software; you can redistribute it and/or | ||
| 9 : | modify it under the terms of the GNU General Public License | ||
| 10 : | as published by the Free Software Foundation; either version 2 | ||
| 11 : | of the License, or (at your option) any later version. | ||
| 12 : | |||
| 13 : | This program is distributed in the hope that it will be useful, | ||
| 14 : | but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| 15 : | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| 16 : | GNU General Public License for more details. | ||
| 17 : | |||
| 18 : | You should have received a copy of the GNU General Public License | ||
| 19 : | along with this program; if not, write to the Free Software | ||
| 20 : | anton | 1.40 | Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA. |
| 21 : | anton | 1.1 | */ |
| 22 : | |||
| 23 : | #include "config.h" | ||
| 24 : | anton | 1.82 | #include "forth.h" |
| 25 : | anton | 1.1 | #include <errno.h> |
| 26 : | #include <ctype.h> | ||
| 27 : | #include <stdio.h> | ||
| 28 : | pazsan | 1.2 | #include <unistd.h> |
| 29 : | anton | 1.1 | #include <string.h> |
| 30 : | #include <math.h> | ||
| 31 : | #include <sys/types.h> | ||
| 32 : | pazsan | 1.32 | #ifndef STANDALONE |
| 33 : | anton | 1.1 | #include <sys/stat.h> |
| 34 : | pazsan | 1.32 | #endif |
| 35 : | anton | 1.1 | #include <fcntl.h> |
| 36 : | #include <assert.h> | ||
| 37 : | #include <stdlib.h> | ||
| 38 : | anton | 1.102 | #include <signal.h> |
| 39 : | pazsan | 1.11 | #ifndef STANDALONE |
| 40 : | anton | 1.1 | #if HAVE_SYS_MMAN_H |
| 41 : | #include <sys/mman.h> | ||
| 42 : | #endif | ||
| 43 : | pazsan | 1.11 | #endif |
| 44 : | anton | 1.1 | #include "io.h" |
| 45 : | #include "getopt.h" | ||
| 46 : | pazsan | 1.11 | #ifdef STANDALONE |
| 47 : | #include <systypes.h> | ||
| 48 : | #endif | ||
| 49 : | anton | 1.1 | |
| 50 : | anton | 1.119 | enum { |
| 51 : | /* definitions of N_execute etc. */ | ||
| 52 : | #include "prim_num.i" | ||
| 53 : | N_START_SUPER | ||
| 54 : | }; | ||
| 55 : | |||
| 56 : | anton | 1.79 | /* global variables for engine.c |
| 57 : | We put them here because engine.c is compiled several times in | ||
| 58 : | different ways for the same engine. */ | ||
| 59 : | Cell *SP; | ||
| 60 : | Float *FP; | ||
| 61 : | Address UP=NULL; | ||
| 62 : | |||
| 63 : | pazsan | 1.115 | #ifdef HAS_FFCALL |
| 64 : | Cell *RP; | ||
| 65 : | Address LP; | ||
| 66 : | |||
| 67 : | #include <callback.h> | ||
| 68 : | |||
| 69 : | va_alist clist; | ||
| 70 : | |||
| 71 : | pazsan | 1.116 | void engine_callback(Xt* fcall, void * alist) |
| 72 : | pazsan | 1.115 | { |
| 73 : | engine(fcall, SP, RP, FP, LP); | ||
| 74 : | clist = (va_alist)alist; | ||
| 75 : | } | ||
| 76 : | #endif | ||
| 77 : | |||
| 78 : | anton | 1.79 | #ifdef GFORTH_DEBUGGING |
| 79 : | /* define some VM registers as global variables, so they survive exceptions; | ||
| 80 : | global register variables are not up to the task (according to the | ||
| 81 : | GNU C manual) */ | ||
| 82 : | Xt *saved_ip; | ||
| 83 : | Cell *rp; | ||
| 84 : | #endif | ||
| 85 : | |||
| 86 : | #ifdef NO_IP | ||
| 87 : | Label next_code; | ||
| 88 : | #endif | ||
| 89 : | |||
| 90 : | #ifdef HAS_FILE | ||
| 91 : | char* fileattr[6]={"rb","rb","r+b","r+b","wb","wb"}; | ||
| 92 : | char* pfileattr[6]={"r","r","r+","r+","w","w"}; | ||
| 93 : | |||
| 94 : | #ifndef O_BINARY | ||
| 95 : | #define O_BINARY 0 | ||
| 96 : | #endif | ||
| 97 : | #ifndef O_TEXT | ||
| 98 : | #define O_TEXT 0 | ||
| 99 : | #endif | ||
| 100 : | |||
| 101 : | int ufileattr[6]= { | ||
| 102 : | O_RDONLY|O_BINARY, O_RDONLY|O_BINARY, | ||
| 103 : | O_RDWR |O_BINARY, O_RDWR |O_BINARY, | ||
| 104 : | O_WRONLY|O_BINARY, O_WRONLY|O_BINARY }; | ||
| 105 : | #endif | ||
| 106 : | /* end global vars for engine.c */ | ||
| 107 : | |||
| 108 : | anton | 1.1 | #define PRIM_VERSION 1 |
| 109 : | /* increment this whenever the primitives change in an incompatible way */ | ||
| 110 : | |||
| 111 : | pazsan | 1.14 | #ifndef DEFAULTPATH |
| 112 : | anton | 1.39 | # define DEFAULTPATH "." |
| 113 : | pazsan | 1.14 | #endif |
| 114 : | |||
| 115 : | anton | 1.1 | #ifdef MSDOS |
| 116 : | jmp_buf throw_jmp_buf; | ||
| 117 : | #endif | ||
| 118 : | |||
| 119 : | anton | 1.56 | #if defined(DOUBLY_INDIRECT) |
| 120 : | # define CFA(n) ({Cell _n = (n); ((Cell)(((_n & 0x4000) ? symbols : xts)+(_n&~0x4000UL)));}) | ||
| 121 : | anton | 1.1 | #else |
| 122 : | anton | 1.56 | # define CFA(n) ((Cell)(symbols+((n)&~0x4000UL))) |
| 123 : | anton | 1.1 | #endif |
| 124 : | |||
| 125 : | #define maxaligned(n) (typeof(n))((((Cell)n)+sizeof(Float)-1)&-sizeof(Float)) | ||
| 126 : | |||
| 127 : | static UCell dictsize=0; | ||
| 128 : | static UCell dsize=0; | ||
| 129 : | static UCell rsize=0; | ||
| 130 : | static UCell fsize=0; | ||
| 131 : | static UCell lsize=0; | ||
| 132 : | int offset_image=0; | ||
| 133 : | anton | 1.4 | int die_on_signal=0; |
| 134 : | pazsan | 1.13 | #ifndef INCLUDE_IMAGE |
| 135 : | anton | 1.1 | static int clear_dictionary=0; |
| 136 : | anton | 1.24 | UCell pagesize=1; |
| 137 : | pazsan | 1.22 | char *progname; |
| 138 : | #else | ||
| 139 : | char *progname = "gforth"; | ||
| 140 : | int optind = 1; | ||
| 141 : | pazsan | 1.13 | #endif |
| 142 : | pazsan | 1.31 | |
| 143 : | anton | 1.97 | #define CODE_BLOCK_SIZE (256*1024) |
| 144 : | anton | 1.48 | Address code_area=0; |
| 145 : | anton | 1.73 | Cell code_area_size = CODE_BLOCK_SIZE; |
| 146 : | anton | 1.75 | Address code_here=NULL+CODE_BLOCK_SIZE; /* does for code-area what HERE |
| 147 : | does for the dictionary */ | ||
| 148 : | anton | 1.100 | Address start_flush=NULL; /* start of unflushed code */ |
| 149 : | anton | 1.74 | Cell last_jump=0; /* if the last prim was compiled without jump, this |
| 150 : | is it's number, otherwise this contains 0 */ | ||
| 151 : | anton | 1.48 | |
| 152 : | anton | 1.60 | static int no_super=0; /* true if compile_prim should not fuse prims */ |
| 153 : | anton | 1.81 | static int no_dynamic=NO_DYNAMIC_DEFAULT; /* if true, no code is generated |
| 154 : | dynamically */ | ||
| 155 : | anton | 1.110 | static int print_metrics=0; /* if true, print metrics on exit */ |
| 156 : | anton | 1.109 | static int static_super_number = 10000000; /* number of ss used if available */ |
| 157 : | anton | 1.110 | static int ss_greedy = 0; /* if true: use greedy, not optimal ss selection */ |
| 158 : | anton | 1.60 | |
| 159 : | pazsan | 1.30 | #ifdef HAS_DEBUG |
| 160 : | anton | 1.68 | int debug=0; |
| 161 : | pazsan | 1.31 | #else |
| 162 : | # define perror(x...) | ||
| 163 : | # define fprintf(x...) | ||
| 164 : | pazsan | 1.30 | #endif |
| 165 : | pazsan | 1.31 | |
| 166 : | anton | 1.24 | ImageHeader *gforth_header; |
| 167 : | anton | 1.43 | Label *vm_prims; |
| 168 : | anton | 1.53 | #ifdef DOUBLY_INDIRECT |
| 169 : | Label *xts; /* same content as vm_prims, but should only be used for xts */ | ||
| 170 : | #endif | ||
| 171 : | anton | 1.1 | |
| 172 : | pazsan | 1.30 | #ifdef MEMCMP_AS_SUBROUTINE |
| 173 : | int gforth_memcmp(const char * s1, const char * s2, size_t n) | ||
| 174 : | { | ||
| 175 : | return memcmp(s1, s2, n); | ||
| 176 : | } | ||
| 177 : | #endif | ||
| 178 : | |||
| 179 : | anton | 1.1 | /* image file format: |
| 180 : | pazsan | 1.15 | * "#! binary-path -i\n" (e.g., "#! /usr/local/bin/gforth-0.4.0 -i\n") |
| 181 : | anton | 1.1 | * padding to a multiple of 8 |
| 182 : | anton | 1.84 | * magic: "Gforth3x" means format 0.6, |
| 183 : | pazsan | 1.15 | * where x is a byte with |
| 184 : | * bit 7: reserved = 0 | ||
| 185 : | * bit 6:5: address unit size 2^n octets | ||
| 186 : | * bit 4:3: character size 2^n octets | ||
| 187 : | * bit 2:1: cell size 2^n octets | ||
| 188 : | * bit 0: endian, big=0, little=1. | ||
| 189 : | * The magic are always 8 octets, no matter what the native AU/character size is | ||
| 190 : | anton | 1.1 | * padding to max alignment (no padding necessary on current machines) |
| 191 : | anton | 1.24 | * ImageHeader structure (see forth.h) |
| 192 : | anton | 1.1 | * data (size in ImageHeader.image_size) |
| 193 : | * tags ((if relocatable, 1 bit/data cell) | ||
| 194 : | * | ||
| 195 : | * tag==1 means that the corresponding word is an address; | ||
| 196 : | * If the word is >=0, the address is within the image; | ||
| 197 : | * addresses within the image are given relative to the start of the image. | ||
| 198 : | * If the word =-1 (CF_NIL), the address is NIL, | ||
| 199 : | * If the word is <CF_NIL and >CF(DODOES), it's a CFA (:, Create, ...) | ||
| 200 : | * If the word =CF(DODOES), it's a DOES> CFA | ||
| 201 : | * If the word =CF(DOESJUMP), it's a DOES JUMP (2 Cells after DOES>, | ||
| 202 : | * possibly containing a jump to dodoes) | ||
| 203 : | anton | 1.51 | * If the word is <CF(DOESJUMP) and bit 14 is set, it's the xt of a primitive |
| 204 : | * If the word is <CF(DOESJUMP) and bit 14 is clear, | ||
| 205 : | * it's the threaded code of a primitive | ||
| 206 : | pazsan | 1.85 | * bits 13..9 of a primitive token state which group the primitive belongs to, |
| 207 : | * bits 8..0 of a primitive token index into the group | ||
| 208 : | anton | 1.1 | */ |
| 209 : | |||
| 210 : | pazsan | 1.115 | Cell groups[32] = { |
| 211 : | pazsan | 1.85 | 0, |
| 212 : | pazsan | 1.115 | DOESJUMP+1 |
| 213 : | anton | 1.90 | #undef GROUP |
| 214 : | pazsan | 1.115 | #undef GROUPADD |
| 215 : | #define GROUPADD(n) +n | ||
| 216 : | #define GROUP(x, n) , 0 | ||
| 217 : | anton | 1.86 | #include "prim_grp.i" |
| 218 : | anton | 1.90 | #undef GROUP |
| 219 : | pazsan | 1.115 | #undef GROUPADD |
| 220 : | pazsan | 1.85 | #define GROUP(x, n) |
| 221 : | pazsan | 1.115 | #define GROUPADD(n) |
| 222 : | pazsan | 1.85 | }; |
| 223 : | |||
| 224 : | pazsan | 1.115 | void relocate(Cell *image, const unsigned char *bitstring, |
| 225 : | anton | 1.90 | int size, Cell base, Label symbols[]) |
| 226 : | anton | 1.1 | { |
| 227 : | pazsan | 1.16 | int i=0, j, k, steps=(size/sizeof(Cell))/RELINFOBITS; |
| 228 : | pazsan | 1.11 | Cell token; |
| 229 : | anton | 1.1 | char bits; |
| 230 : | anton | 1.37 | Cell max_symbols; |
| 231 : | jwilke | 1.46 | /* |
| 232 : | pazsan | 1.85 | * A virtual start address that's the real start address minus |
| 233 : | jwilke | 1.46 | * the one in the image |
| 234 : | */ | ||
| 235 : | jwilke | 1.45 | Cell *start = (Cell * ) (((void *) image) - ((void *) base)); |
| 236 : | anton | 1.1 | |
| 237 : | pazsan | 1.85 | /* group index into table */ |
| 238 : | pazsan | 1.115 | if(groups[31]==0) { |
| 239 : | int groupsum=0; | ||
| 240 : | for(i=0; i<32; i++) { | ||
| 241 : | groupsum += groups[i]; | ||
| 242 : | groups[i] = groupsum; | ||
| 243 : | /* printf("group[%d]=%d\n",i,groupsum); */ | ||
| 244 : | } | ||
| 245 : | i=0; | ||
| 246 : | } | ||
| 247 : | jwilke | 1.46 | |
| 248 : | /* printf("relocating to %x[%x] start=%x base=%x\n", image, size, start, base); */ | ||
| 249 : | anton | 1.37 | |
| 250 : | for (max_symbols=DOESJUMP+1; symbols[max_symbols]!=0; max_symbols++) | ||
| 251 : | ; | ||
| 252 : | anton | 1.47 | max_symbols--; |
| 253 : | pazsan | 1.35 | size/=sizeof(Cell); |
| 254 : | |||
| 255 : | pazsan | 1.31 | for(k=0; k<=steps; k++) { |
| 256 : | pazsan | 1.13 | for(j=0, bits=bitstring[k]; j<RELINFOBITS; j++, i++, bits<<=1) { |
| 257 : | anton | 1.1 | /* fprintf(stderr,"relocate: image[%d]\n", i);*/ |
| 258 : | pazsan | 1.35 | if((i < size) && (bits & (1U << (RELINFOBITS-1)))) { |
| 259 : | /* fprintf(stderr,"relocate: image[%d]=%d of %d\n", i, image[i], size/sizeof(Cell)); */ | ||
| 260 : | jwilke | 1.45 | token=image[i]; |
| 261 : | pazsan | 1.85 | if(token<0) { |
| 262 : | int group = (-token & 0x3E00) >> 9; | ||
| 263 : | if(group == 0) { | ||
| 264 : | switch(token|0x4000) { | ||
| 265 : | anton | 1.1 | case CF_NIL : image[i]=0; break; |
| 266 : | #if !defined(DOUBLY_INDIRECT) | ||
| 267 : | case CF(DOCOL) : | ||
| 268 : | case CF(DOVAR) : | ||
| 269 : | case CF(DOCON) : | ||
| 270 : | case CF(DOUSER) : | ||
| 271 : | case CF(DODEFER) : | ||
| 272 : | pazsan | 1.11 | case CF(DOFIELD) : MAKE_CF(image+i,symbols[CF(token)]); break; |
| 273 : | anton | 1.92 | case CF(DOESJUMP): image[i]=0; break; |
| 274 : | anton | 1.1 | #endif /* !defined(DOUBLY_INDIRECT) */ |
| 275 : | case CF(DODOES) : | ||
| 276 : | jwilke | 1.45 | MAKE_DOES_CF(image+i,(Xt *)(image[i+1]+((Cell)start))); |
| 277 : | anton | 1.1 | break; |
| 278 : | pazsan | 1.85 | default : /* backward compatibility */ |
| 279 : | anton | 1.56 | /* printf("Code field generation image[%x]:=CFA(%x)\n", |
| 280 : | anton | 1.1 | i, CF(image[i])); */ |
| 281 : | anton | 1.55 | if (CF((token | 0x4000))<max_symbols) { |
| 282 : | anton | 1.56 | image[i]=(Cell)CFA(CF(token)); |
| 283 : | #ifdef DIRECT_THREADED | ||
| 284 : | if ((token & 0x4000) == 0) /* threade code, no CFA */ | ||
| 285 : | anton | 1.70 | compile_prim1(&image[i]); |
| 286 : | anton | 1.56 | #endif |
| 287 : | anton | 1.55 | } else |
| 288 : | pazsan | 1.115 | fprintf(stderr,"Primitive %ld used in this image at $%lx (offset $%x) is not implemented by this\n engine (%s); executing this code will crash.\n",(long)CF(token),(long)&image[i], i, PACKAGE_VERSION); |
| 289 : | anton | 1.1 | } |
| 290 : | pazsan | 1.85 | } else { |
| 291 : | int tok = -token & 0x1FF; | ||
| 292 : | if (tok < (groups[group+1]-groups[group])) { | ||
| 293 : | #if defined(DOUBLY_INDIRECT) | ||
| 294 : | image[i]=(Cell)CFA(((groups[group]+tok) | (CF(token) & 0x4000))); | ||
| 295 : | #else | ||
| 296 : | image[i]=(Cell)CFA((groups[group]+tok)); | ||
| 297 : | #endif | ||
| 298 : | #ifdef DIRECT_THREADED | ||
| 299 : | if ((token & 0x4000) == 0) /* threade code, no CFA */ | ||
| 300 : | compile_prim1(&image[i]); | ||
| 301 : | #endif | ||
| 302 : | } else | ||
| 303 : | pazsan | 1.115 | fprintf(stderr,"Primitive %lx, %d of group %d used in this image at $%lx (offset $%x) is not implemented by this\n engine (%s); executing this code will crash.\n", (long)-token, tok, group, (long)&image[i],i,PACKAGE_VERSION); |
| 304 : | pazsan | 1.85 | } |
| 305 : | } else { | ||
| 306 : | anton | 1.101 | /* if base is > 0: 0 is a null reference so don't adjust*/ |
| 307 : | jwilke | 1.45 | if (token>=base) { |
| 308 : | image[i]+=(Cell)start; | ||
| 309 : | } | ||
| 310 : | jwilke | 1.46 | } |
| 311 : | anton | 1.1 | } |
| 312 : | } | ||
| 313 : | pazsan | 1.31 | } |
| 314 : | anton | 1.70 | finish_code(); |
| 315 : | jwilke | 1.26 | ((ImageHeader*)(image))->base = (Address) image; |
| 316 : | anton | 1.1 | } |
| 317 : | |||
| 318 : | UCell checksum(Label symbols[]) | ||
| 319 : | { | ||
| 320 : | UCell r=PRIM_VERSION; | ||
| 321 : | Cell i; | ||
| 322 : | |||
| 323 : | for (i=DOCOL; i<=DOESJUMP; i++) { | ||
| 324 : | r ^= (UCell)(symbols[i]); | ||
| 325 : | r = (r << 5) | (r >> (8*sizeof(Cell)-5)); | ||
| 326 : | } | ||
| 327 : | #ifdef DIRECT_THREADED | ||
| 328 : | /* we have to consider all the primitives */ | ||
| 329 : | for (; symbols[i]!=(Label)0; i++) { | ||
| 330 : | r ^= (UCell)(symbols[i]); | ||
| 331 : | r = (r << 5) | (r >> (8*sizeof(Cell)-5)); | ||
| 332 : | } | ||
| 333 : | #else | ||
| 334 : | /* in indirect threaded code all primitives are accessed through the | ||
| 335 : | symbols table, so we just have to put the base address of symbols | ||
| 336 : | in the checksum */ | ||
| 337 : | r ^= (UCell)symbols; | ||
| 338 : | #endif | ||
| 339 : | return r; | ||
| 340 : | } | ||
| 341 : | |||
| 342 : | anton | 1.3 | Address verbose_malloc(Cell size) |
| 343 : | { | ||
| 344 : | Address r; | ||
| 345 : | /* leave a little room (64B) for stack underflows */ | ||
| 346 : | if ((r = malloc(size+64))==NULL) { | ||
| 347 : | perror(progname); | ||
| 348 : | exit(1); | ||
| 349 : | } | ||
| 350 : | r = (Address)((((Cell)r)+(sizeof(Float)-1))&(-sizeof(Float))); | ||
| 351 : | if (debug) | ||
| 352 : | fprintf(stderr, "malloc succeeds, address=$%lx\n", (long)r); | ||
| 353 : | return r; | ||
| 354 : | } | ||
| 355 : | |||
| 356 : | anton | 1.33 | static Address next_address=0; |
| 357 : | void after_alloc(Address r, Cell size) | ||
| 358 : | { | ||
| 359 : | if (r != (Address)-1) { | ||
| 360 : | if (debug) | ||
| 361 : | fprintf(stderr, "success, address=$%lx\n", (long) r); | ||
| 362 : | if (pagesize != 1) | ||
| 363 : | next_address = (Address)(((((Cell)r)+size-1)&-pagesize)+2*pagesize); /* leave one page unmapped */ | ||
| 364 : | } else { | ||
| 365 : | if (debug) | ||
| 366 : | fprintf(stderr, "failed: %s\n", strerror(errno)); | ||
| 367 : | } | ||
| 368 : | } | ||
| 369 : | |||
| 370 : | anton | 1.34 | #ifndef MAP_FAILED |
| 371 : | #define MAP_FAILED ((Address) -1) | ||
| 372 : | #endif | ||
| 373 : | #ifndef MAP_FILE | ||
| 374 : | # define MAP_FILE 0 | ||
| 375 : | #endif | ||
| 376 : | #ifndef MAP_PRIVATE | ||
| 377 : | # define MAP_PRIVATE 0 | ||
| 378 : | #endif | ||
| 379 : | anton | 1.91 | #if !defined(MAP_ANON) && defined(MAP_ANONYMOUS) |
| 380 : | # define MAP_ANON MAP_ANONYMOUS | ||
| 381 : | #endif | ||
| 382 : | anton | 1.34 | |
| 383 : | #if defined(HAVE_MMAP) | ||
| 384 : | static Address alloc_mmap(Cell size) | ||
| 385 : | anton | 1.1 | { |
| 386 : | Address r; | ||
| 387 : | |||
| 388 : | #if defined(MAP_ANON) | ||
| 389 : | if (debug) | ||
| 390 : | fprintf(stderr,"try mmap($%lx, $%lx, ..., MAP_ANON, ...); ", (long)next_address, (long)size); | ||
| 391 : | anton | 1.34 | r = mmap(next_address, size, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_ANON|MAP_PRIVATE, -1, 0); |
| 392 : | anton | 1.1 | #else /* !defined(MAP_ANON) */ |
| 393 : | anton | 1.17 | /* Ultrix (at least) does not define MAP_FILE and MAP_PRIVATE (both are |
| 394 : | apparently defaults) */ | ||
| 395 : | anton | 1.1 | static int dev_zero=-1; |
| 396 : | |||
| 397 : | if (dev_zero == -1) | ||
| 398 : | dev_zero = open("/dev/zero", O_RDONLY); | ||
| 399 : | if (dev_zero == -1) { | ||
| 400 : | anton | 1.34 | r = MAP_FAILED; |
| 401 : | anton | 1.1 | if (debug) |
| 402 : | fprintf(stderr, "open(\"/dev/zero\"...) failed (%s), no mmap; ", | ||
| 403 : | strerror(errno)); | ||
| 404 : | } else { | ||
| 405 : | if (debug) | ||
| 406 : | fprintf(stderr,"try mmap($%lx, $%lx, ..., MAP_FILE, dev_zero, ...); ", (long)next_address, (long)size); | ||
| 407 : | r=mmap(next_address, size, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_FILE|MAP_PRIVATE, dev_zero, 0); | ||
| 408 : | } | ||
| 409 : | #endif /* !defined(MAP_ANON) */ | ||
| 410 : | anton | 1.34 | after_alloc(r, size); |
| 411 : | return r; | ||
| 412 : | } | ||
| 413 : | #endif | ||
| 414 : | |||
| 415 : | Address my_alloc(Cell size) | ||
| 416 : | { | ||
| 417 : | #if HAVE_MMAP | ||
| 418 : | Address r; | ||
| 419 : | |||
| 420 : | r=alloc_mmap(size); | ||
| 421 : | anton | 1.117 | if (r!=(Address)MAP_FAILED) |
| 422 : | anton | 1.1 | return r; |
| 423 : | #endif /* HAVE_MMAP */ | ||
| 424 : | anton | 1.3 | /* use malloc as fallback */ |
| 425 : | return verbose_malloc(size); | ||
| 426 : | anton | 1.1 | } |
| 427 : | |||
| 428 : | anton | 1.34 | Address dict_alloc_read(FILE *file, Cell imagesize, Cell dictsize, Cell offset) |
| 429 : | anton | 1.33 | { |
| 430 : | anton | 1.34 | Address image = MAP_FAILED; |
| 431 : | anton | 1.33 | |
| 432 : | anton | 1.56 | #if defined(HAVE_MMAP) |
| 433 : | anton | 1.33 | if (offset==0) { |
| 434 : | anton | 1.34 | image=alloc_mmap(dictsize); |
| 435 : | anton | 1.33 | if (debug) |
| 436 : | anton | 1.34 | fprintf(stderr,"try mmap($%lx, $%lx, ..., MAP_FIXED|MAP_FILE, imagefile, 0); ", (long)image, (long)imagesize); |
| 437 : | image = mmap(image, imagesize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_FIXED|MAP_FILE|MAP_PRIVATE, fileno(file), 0); | ||
| 438 : | after_alloc(image,dictsize); | ||
| 439 : | anton | 1.33 | } |
| 440 : | anton | 1.56 | #endif /* defined(HAVE_MMAP) */ |
| 441 : | anton | 1.117 | if (image == (Address)MAP_FAILED) { |
| 442 : | anton | 1.56 | image = my_alloc(dictsize+offset)+offset; |
| 443 : | anton | 1.33 | rewind(file); /* fseek(imagefile,0L,SEEK_SET); */ |
| 444 : | anton | 1.34 | fread(image, 1, imagesize, file); |
| 445 : | anton | 1.33 | } |
| 446 : | return image; | ||
| 447 : | } | ||
| 448 : | |||
| 449 : | pazsan | 1.10 | void set_stack_sizes(ImageHeader * header) |
| 450 : | { | ||
| 451 : | if (dictsize==0) | ||
| 452 : | dictsize = header->dict_size; | ||
| 453 : | if (dsize==0) | ||
| 454 : | dsize = header->data_stack_size; | ||
| 455 : | if (rsize==0) | ||
| 456 : | rsize = header->return_stack_size; | ||
| 457 : | if (fsize==0) | ||
| 458 : | fsize = header->fp_stack_size; | ||
| 459 : | if (lsize==0) | ||
| 460 : | lsize = header->locals_stack_size; | ||
| 461 : | dictsize=maxaligned(dictsize); | ||
| 462 : | dsize=maxaligned(dsize); | ||
| 463 : | rsize=maxaligned(rsize); | ||
| 464 : | lsize=maxaligned(lsize); | ||
| 465 : | fsize=maxaligned(fsize); | ||
| 466 : | } | ||
| 467 : | |||
| 468 : | void alloc_stacks(ImageHeader * header) | ||
| 469 : | { | ||
| 470 : | header->dict_size=dictsize; | ||
| 471 : | header->data_stack_size=dsize; | ||
| 472 : | header->fp_stack_size=fsize; | ||
| 473 : | header->return_stack_size=rsize; | ||
| 474 : | header->locals_stack_size=lsize; | ||
| 475 : | |||
| 476 : | header->data_stack_base=my_alloc(dsize); | ||
| 477 : | header->fp_stack_base=my_alloc(fsize); | ||
| 478 : | header->return_stack_base=my_alloc(rsize); | ||
| 479 : | header->locals_stack_base=my_alloc(lsize); | ||
| 480 : | } | ||
| 481 : | |||
| 482 : | pazsan | 1.44 | #warning You can ignore the warnings about clobbered variables in go_forth |
| 483 : | pazsan | 1.11 | int go_forth(Address image, int stack, Cell *entries) |
| 484 : | { | ||
| 485 : | anton | 1.38 | volatile ImageHeader *image_header = (ImageHeader *)image; |
| 486 : | anton | 1.18 | Cell *sp0=(Cell*)(image_header->data_stack_base + dsize); |
| 487 : | pazsan | 1.44 | Cell *rp0=(Cell *)(image_header->return_stack_base + rsize); |
| 488 : | anton | 1.18 | Float *fp0=(Float *)(image_header->fp_stack_base + fsize); |
| 489 : | pazsan | 1.44 | #ifdef GFORTH_DEBUGGING |
| 490 : | anton | 1.38 | volatile Cell *orig_rp0=rp0; |
| 491 : | pazsan | 1.44 | #endif |
| 492 : | anton | 1.18 | Address lp0=image_header->locals_stack_base + lsize; |
| 493 : | Xt *ip0=(Xt *)(image_header->boot_entry); | ||
| 494 : | pazsan | 1.13 | #ifdef SYSSIGNALS |
| 495 : | pazsan | 1.11 | int throw_code; |
| 496 : | pazsan | 1.13 | #endif |
| 497 : | pazsan | 1.11 | |
| 498 : | /* ensure that the cached elements (if any) are accessible */ | ||
| 499 : | anton | 1.41 | IF_spTOS(sp0--); |
| 500 : | IF_fpTOS(fp0--); | ||
| 501 : | pazsan | 1.11 | |
| 502 : | for(;stack>0;stack--) | ||
| 503 : | anton | 1.18 | *--sp0=entries[stack-1]; |
| 504 : | pazsan | 1.11 | |
| 505 : | pazsan | 1.30 | #ifdef SYSSIGNALS |
| 506 : | pazsan | 1.11 | get_winsize(); |
| 507 : | |||
| 508 : | install_signal_handlers(); /* right place? */ | ||
| 509 : | |||
| 510 : | if ((throw_code=setjmp(throw_jmp_buf))) { | ||
| 511 : | static Cell signal_data_stack[8]; | ||
| 512 : | static Cell signal_return_stack[8]; | ||
| 513 : | static Float signal_fp_stack[1]; | ||
| 514 : | pazsan | 1.13 | |
| 515 : | pazsan | 1.11 | signal_data_stack[7]=throw_code; |
| 516 : | anton | 1.18 | |
| 517 : | #ifdef GFORTH_DEBUGGING | ||
| 518 : | anton | 1.97 | if (debug) |
| 519 : | fprintf(stderr,"\ncaught signal, throwing exception %d, ip=%p rp=%p\n", | ||
| 520 : | throw_code, saved_ip, rp); | ||
| 521 : | anton | 1.38 | if (rp <= orig_rp0 && rp > (Cell *)(image_header->return_stack_base+5)) { |
| 522 : | anton | 1.18 | /* no rstack overflow or underflow */ |
| 523 : | rp0 = rp; | ||
| 524 : | anton | 1.63 | *--rp0 = (Cell)saved_ip; |
| 525 : | anton | 1.18 | } |
| 526 : | else /* I love non-syntactic ifdefs :-) */ | ||
| 527 : | anton | 1.97 | rp0 = signal_return_stack+8; |
| 528 : | #else /* !defined(GFORTH_DEBUGGING) */ | ||
| 529 : | if (debug) | ||
| 530 : | fprintf(stderr,"\ncaught signal, throwing exception %d\n", throw_code); | ||
| 531 : | rp0 = signal_return_stack+8; | ||
| 532 : | #endif /* !defined(GFORTH_DEBUGGING) */ | ||
| 533 : | anton | 1.25 | /* fprintf(stderr, "rp=$%x\n",rp0);*/ |
| 534 : | pazsan | 1.11 | |
| 535 : | anton | 1.33 | return((int)(Cell)engine(image_header->throw_entry, signal_data_stack+7, |
| 536 : | anton | 1.18 | rp0, signal_fp_stack, 0)); |
| 537 : | pazsan | 1.11 | } |
| 538 : | pazsan | 1.13 | #endif |
| 539 : | pazsan | 1.11 | |
| 540 : | anton | 1.33 | return((int)(Cell)engine(ip0,sp0,rp0,fp0,lp0)); |
| 541 : | pazsan | 1.11 | } |
| 542 : | |||
| 543 : | pazsan | 1.30 | #ifndef INCLUDE_IMAGE |
| 544 : | anton | 1.21 | void print_sizes(Cell sizebyte) |
| 545 : | /* print size information */ | ||
| 546 : | { | ||
| 547 : | static char* endianstring[]= { " big","little" }; | ||
| 548 : | |||
| 549 : | fprintf(stderr,"%s endian, cell=%d bytes, char=%d bytes, au=%d bytes\n", | ||
| 550 : | endianstring[sizebyte & 1], | ||
| 551 : | 1 << ((sizebyte >> 1) & 3), | ||
| 552 : | 1 << ((sizebyte >> 3) & 3), | ||
| 553 : | 1 << ((sizebyte >> 5) & 3)); | ||
| 554 : | } | ||
| 555 : | |||
| 556 : | anton | 1.106 | /* static superinstruction stuff */ |
| 557 : | |||
| 558 : | struct cost { | ||
| 559 : | char loads; /* number of stack loads */ | ||
| 560 : | char stores; /* number of stack stores */ | ||
| 561 : | char updates; /* number of stack pointer updates */ | ||
| 562 : | short offset; /* offset into super2 table */ | ||
| 563 : | char length; /* number of components */ | ||
| 564 : | }; | ||
| 565 : | |||
| 566 : | short super2[] = { | ||
| 567 : | #include "super2.i" | ||
| 568 : | }; | ||
| 569 : | |||
| 570 : | struct cost super_costs[] = { | ||
| 571 : | #include "costs.i" | ||
| 572 : | }; | ||
| 573 : | |||
| 574 : | #define HASH_SIZE 256 | ||
| 575 : | |||
| 576 : | struct super_table_entry { | ||
| 577 : | struct super_table_entry *next; | ||
| 578 : | short *start; | ||
| 579 : | short length; | ||
| 580 : | short super; | ||
| 581 : | } *super_table[HASH_SIZE]; | ||
| 582 : | int max_super=2; | ||
| 583 : | |||
| 584 : | int hash_super(short *start, int length) | ||
| 585 : | { | ||
| 586 : | int i, r; | ||
| 587 : | |||
| 588 : | for (i=0, r=0; i<length; i++) { | ||
| 589 : | r <<= 1; | ||
| 590 : | r += start[i]; | ||
| 591 : | } | ||
| 592 : | return r & (HASH_SIZE-1); | ||
| 593 : | } | ||
| 594 : | |||
| 595 : | int lookup_super(short *start, int length) | ||
| 596 : | { | ||
| 597 : | int hash=hash_super(start,length); | ||
| 598 : | struct super_table_entry *p = super_table[hash]; | ||
| 599 : | |||
| 600 : | assert(length >= 2); | ||
| 601 : | for (; p!=NULL; p = p->next) { | ||
| 602 : | if (length == p->length && | ||
| 603 : | memcmp((char *)p->start, (char *)start, length*sizeof(short))==0) | ||
| 604 : | return p->super; | ||
| 605 : | } | ||
| 606 : | return -1; | ||
| 607 : | } | ||
| 608 : | |||
| 609 : | void prepare_super_table() | ||
| 610 : | { | ||
| 611 : | int i; | ||
| 612 : | anton | 1.109 | int nsupers = 0; |
| 613 : | anton | 1.106 | |
| 614 : | for (i=0; i<sizeof(super_costs)/sizeof(super_costs[0]); i++) { | ||
| 615 : | struct cost *c = &super_costs[i]; | ||
| 616 : | anton | 1.109 | if (c->length > 1 && nsupers < static_super_number) { |
| 617 : | anton | 1.106 | int hash = hash_super(super2+c->offset, c->length); |
| 618 : | struct super_table_entry **p = &super_table[hash]; | ||
| 619 : | struct super_table_entry *e = malloc(sizeof(struct super_table_entry)); | ||
| 620 : | e->next = *p; | ||
| 621 : | e->start = super2 + c->offset; | ||
| 622 : | e->length = c->length; | ||
| 623 : | e->super = i; | ||
| 624 : | *p = e; | ||
| 625 : | if (c->length > max_super) | ||
| 626 : | max_super = c->length; | ||
| 627 : | anton | 1.109 | nsupers++; |
| 628 : | anton | 1.106 | } |
| 629 : | } | ||
| 630 : | anton | 1.109 | if (debug) |
| 631 : | fprintf(stderr, "Using %d static superinsts\n", nsupers); | ||
| 632 : | anton | 1.106 | } |
| 633 : | |||
| 634 : | /* dynamic replication/superinstruction stuff */ | ||
| 635 : | |||
| 636 : | anton | 1.70 | #define MAX_IMMARGS 2 |
| 637 : | |||
| 638 : | anton | 1.69 | #ifndef NO_DYNAMIC |
| 639 : | anton | 1.47 | typedef struct { |
| 640 : | Label start; | ||
| 641 : | anton | 1.74 | Cell length; /* only includes the jump iff superend is true*/ |
| 642 : | Cell restlength; /* length of the rest (i.e., the jump or (on superend) 0) */ | ||
| 643 : | anton | 1.70 | char superend; /* true if primitive ends superinstruction, i.e., |
| 644 : | anton | 1.47 | unconditional branch, execute, etc. */ |
| 645 : | anton | 1.70 | Cell nimmargs; |
| 646 : | struct immarg { | ||
| 647 : | Cell offset; /* offset of immarg within prim */ | ||
| 648 : | char rel; /* true if immarg is relative */ | ||
| 649 : | } immargs[MAX_IMMARGS]; | ||
| 650 : | anton | 1.47 | } PrimInfo; |
| 651 : | |||
| 652 : | PrimInfo *priminfos; | ||
| 653 : | anton | 1.76 | PrimInfo **decomp_prims; |
| 654 : | |||
| 655 : | anton | 1.90 | int compare_priminfo_length(const void *_a, const void *_b) |
| 656 : | anton | 1.76 | { |
| 657 : | anton | 1.90 | PrimInfo **a = (PrimInfo **)_a; |
| 658 : | PrimInfo **b = (PrimInfo **)_b; | ||
| 659 : | anton | 1.77 | Cell diff = (*a)->length - (*b)->length; |
| 660 : | if (diff) | ||
| 661 : | return diff; | ||
| 662 : | else /* break ties by start address; thus the decompiler produces | ||
| 663 : | the earliest primitive with the same code (e.g. noop instead | ||
| 664 : | of (char) and @ instead of >code-address */ | ||
| 665 : | return (*b)->start - (*a)->start; | ||
| 666 : | anton | 1.76 | } |
| 667 : | anton | 1.112 | #endif /* !defined(NO_DYNAMIC) */ |
| 668 : | anton | 1.76 | |
| 669 : | anton | 1.106 | static char superend[]={ |
| 670 : | #include "prim_superend.i" | ||
| 671 : | }; | ||
| 672 : | anton | 1.107 | |
| 673 : | Cell npriminfos=0; | ||
| 674 : | anton | 1.76 | |
| 675 : | anton | 1.114 | int compare_labels(const void *pa, const void *pb) |
| 676 : | anton | 1.113 | { |
| 677 : | anton | 1.114 | Label a = *(Label *)pa; |
| 678 : | Label b = *(Label *)pb; | ||
| 679 : | return a-b; | ||
| 680 : | } | ||
| 681 : | anton | 1.113 | |
| 682 : | anton | 1.114 | Label bsearch_next(Label key, Label *a, UCell n) |
| 683 : | /* a is sorted; return the label >=key that is the closest in a; | ||
| 684 : | return NULL if there is no label in a >=key */ | ||
| 685 : | { | ||
| 686 : | int mid = (n-1)/2; | ||
| 687 : | if (n<1) | ||
| 688 : | return NULL; | ||
| 689 : | if (n == 1) { | ||
| 690 : | if (a[0] < key) | ||
| 691 : | return NULL; | ||
| 692 : | else | ||
| 693 : | return a[0]; | ||
| 694 : | } | ||
| 695 : | if (a[mid] < key) | ||
| 696 : | return bsearch_next(key, a+mid+1, n-mid-1); | ||
| 697 : | else | ||
| 698 : | return bsearch_next(key, a, mid+1); | ||
| 699 : | anton | 1.113 | } |
| 700 : | |||
| 701 : | anton | 1.47 | void check_prims(Label symbols1[]) |
| 702 : | { | ||
| 703 : | int i; | ||
| 704 : | anton | 1.90 | #ifndef NO_DYNAMIC |
| 705 : | anton | 1.119 | Label *symbols2, *symbols3, *ends1, *ends1j, *ends1jsorted; |
| 706 : | int nends1j; | ||
| 707 : | anton | 1.90 | #endif |
| 708 : | anton | 1.47 | |
| 709 : | anton | 1.66 | if (debug) |
| 710 : | #ifdef __VERSION__ | ||
| 711 : | fprintf(stderr, "Compiled with gcc-" __VERSION__ "\n"); | ||
| 712 : | #else | ||
| 713 : | #define xstr(s) str(s) | ||
| 714 : | #define str(s) #s | ||
| 715 : | fprintf(stderr, "Compiled with gcc-" xstr(__GNUC__) "." xstr(__GNUC_MINOR__) "\n"); | ||
| 716 : | #endif | ||
| 717 : | anton | 1.47 | for (i=DOESJUMP+1; symbols1[i+1]!=0; i++) |
| 718 : | ; | ||
| 719 : | anton | 1.55 | npriminfos = i; |
| 720 : | anton | 1.70 | |
| 721 : | #ifndef NO_DYNAMIC | ||
| 722 : | anton | 1.66 | if (no_dynamic) |
| 723 : | return; | ||
| 724 : | anton | 1.55 | symbols2=engine2(0,0,0,0,0); |
| 725 : | anton | 1.70 | #if NO_IP |
| 726 : | symbols3=engine3(0,0,0,0,0); | ||
| 727 : | #else | ||
| 728 : | symbols3=symbols1; | ||
| 729 : | #endif | ||
| 730 : | ends1 = symbols1+i+1-DOESJUMP; | ||
| 731 : | anton | 1.119 | ends1j = ends1+i; |
| 732 : | nends1j = i-DOESJUMP; | ||
| 733 : | ends1jsorted = (Label *)alloca(nends1j*sizeof(Label)); | ||
| 734 : | memcpy(ends1jsorted,ends1j,nends1j*sizeof(Label)); | ||
| 735 : | qsort(ends1jsorted, nends1j, sizeof(Label), compare_labels); | ||
| 736 : | anton | 1.113 | |
| 737 : | anton | 1.47 | priminfos = calloc(i,sizeof(PrimInfo)); |
| 738 : | for (i=DOESJUMP+1; symbols1[i+1]!=0; i++) { | ||
| 739 : | anton | 1.70 | int prim_len = ends1[i]-symbols1[i]; |
| 740 : | anton | 1.47 | PrimInfo *pi=&priminfos[i]; |
| 741 : | anton | 1.70 | int j=0; |
| 742 : | char *s1 = (char *)symbols1[i]; | ||
| 743 : | char *s2 = (char *)symbols2[i]; | ||
| 744 : | char *s3 = (char *)symbols3[i]; | ||
| 745 : | anton | 1.119 | Label endlabel = bsearch_next(symbols1[i]+1,ends1jsorted,nends1j); |
| 746 : | anton | 1.70 | |
| 747 : | pi->start = s1; | ||
| 748 : | pi->superend = superend[i-DOESJUMP-1]|no_super; | ||
| 749 : | if (pi->superend) | ||
| 750 : | anton | 1.113 | pi->length = endlabel-symbols1[i]; |
| 751 : | anton | 1.70 | else |
| 752 : | pi->length = prim_len; | ||
| 753 : | anton | 1.113 | pi->restlength = endlabel - symbols1[i] - pi->length; |
| 754 : | anton | 1.70 | pi->nimmargs = 0; |
| 755 : | if (debug) | ||
| 756 : | anton | 1.98 | fprintf(stderr, "Prim %3d @ %p %p %p, length=%3ld restlength=%2ld superend=%1d", |
| 757 : | i, s1, s2, s3, (long)(pi->length), (long)(pi->restlength), pi->superend); | ||
| 758 : | anton | 1.114 | if (endlabel == NULL) { |
| 759 : | pi->start = NULL; /* not relocatable */ | ||
| 760 : | if (debug) | ||
| 761 : | anton | 1.119 | fprintf(stderr,"\n non_reloc: no J label > start found\n"); |
| 762 : | anton | 1.114 | continue; |
| 763 : | } | ||
| 764 : | if (ends1[i] > endlabel && !pi->superend) { | ||
| 765 : | anton | 1.113 | pi->start = NULL; /* not relocatable */ |
| 766 : | if (debug) | ||
| 767 : | anton | 1.119 | fprintf(stderr,"\n non_reloc: there is a J label before the J label (restlength<0)\n"); |
| 768 : | anton | 1.113 | continue; |
| 769 : | } | ||
| 770 : | anton | 1.114 | if (ends1[i] < pi->start && !pi->superend) { |
| 771 : | anton | 1.113 | pi->start = NULL; /* not relocatable */ |
| 772 : | if (debug) | ||
| 773 : | anton | 1.119 | fprintf(stderr,"\n non_reloc: K label before I label (length<0)\n"); |
| 774 : | anton | 1.113 | continue; |
| 775 : | } | ||
| 776 : | anton | 1.70 | assert(prim_len>=0); |
| 777 : | anton | 1.113 | assert(pi->restlength >=0); |
| 778 : | anton | 1.74 | while (j<(pi->length+pi->restlength)) { |
| 779 : | anton | 1.70 | if (s1[j]==s3[j]) { |
| 780 : | if (s1[j] != s2[j]) { | ||
| 781 : | pi->start = NULL; /* not relocatable */ | ||
| 782 : | if (debug) | ||
| 783 : | fprintf(stderr,"\n non_reloc: engine1!=engine2 offset %3d",j); | ||
| 784 : | anton | 1.74 | /* assert(j<prim_len); */ |
| 785 : | anton | 1.70 | break; |
| 786 : | } | ||
| 787 : | j++; | ||
| 788 : | } else { | ||
| 789 : | struct immarg *ia=&pi->immargs[pi->nimmargs]; | ||
| 790 : | |||
| 791 : | pi->nimmargs++; | ||
| 792 : | ia->offset=j; | ||
| 793 : | if ((~*(Cell *)&(s1[j]))==*(Cell *)&(s3[j])) { | ||
| 794 : | ia->rel=0; | ||
| 795 : | if (debug) | ||
| 796 : | fprintf(stderr,"\n absolute immarg: offset %3d",j); | ||
| 797 : | } else if ((&(s1[j]))+(*(Cell *)&(s1[j]))+4 == | ||
| 798 : | symbols1[DOESJUMP+1]) { | ||
| 799 : | ia->rel=1; | ||
| 800 : | if (debug) | ||
| 801 : | fprintf(stderr,"\n relative immarg: offset %3d",j); | ||
| 802 : | } else { | ||
| 803 : | pi->start = NULL; /* not relocatable */ | ||
| 804 : | if (debug) | ||
| 805 : | fprintf(stderr,"\n non_reloc: engine1!=engine3 offset %3d",j); | ||
| 806 : | anton | 1.74 | /* assert(j<prim_len);*/ |
| 807 : | anton | 1.70 | break; |
| 808 : | } | ||
| 809 : | j+=4; | ||
| 810 : | anton | 1.47 | } |
| 811 : | } | ||
| 812 : | anton | 1.70 | if (debug) |
| 813 : | fprintf(stderr,"\n"); | ||
| 814 : | } | ||
| 815 : | anton | 1.76 | decomp_prims = calloc(i,sizeof(PrimInfo *)); |
| 816 : | for (i=DOESJUMP+1; i<npriminfos; i++) | ||
| 817 : | decomp_prims[i] = &(priminfos[i]); | ||
| 818 : | qsort(decomp_prims+DOESJUMP+1, npriminfos-DOESJUMP-1, sizeof(PrimInfo *), | ||
| 819 : | compare_priminfo_length); | ||
| 820 : | anton | 1.70 | #endif |
| 821 : | } | ||
| 822 : | |||
| 823 : | anton | 1.74 | void flush_to_here(void) |
| 824 : | { | ||
| 825 : | anton | 1.93 | #ifndef NO_DYNAMIC |
| 826 : | anton | 1.100 | if (start_flush) |
| 827 : | FLUSH_ICACHE(start_flush, code_here-start_flush); | ||
| 828 : | anton | 1.74 | start_flush=code_here; |
| 829 : | anton | 1.93 | #endif |
| 830 : | anton | 1.74 | } |
| 831 : | |||
| 832 : | anton | 1.93 | #ifndef NO_DYNAMIC |
| 833 : | anton | 1.74 | void append_jump(void) |
| 834 : | { | ||
| 835 : | if (last_jump) { | ||
| 836 : | PrimInfo *pi = &priminfos[last_jump]; | ||
| 837 : | |||
| 838 : | memcpy(code_here, pi->start+pi->length, pi->restlength); | ||
| 839 : | code_here += pi->restlength; | ||
| 840 : | last_jump=0; | ||
| 841 : | } | ||
| 842 : | } | ||
| 843 : | |||
| 844 : | anton | 1.75 | /* Gforth remembers all code blocks in this list. On forgetting (by |
| 845 : | executing a marker) the code blocks are not freed (because Gforth does | ||
| 846 : | not remember how they were allocated; hmm, remembering that might be | ||
| 847 : | easier and cleaner). Instead, code_here etc. are reset to the old | ||
| 848 : | value, and the "forgotten" code blocks are reused when they are | ||
| 849 : | needed. */ | ||
| 850 : | |||
| 851 : | struct code_block_list { | ||
| 852 : | struct code_block_list *next; | ||
| 853 : | Address block; | ||
| 854 : | Cell size; | ||
| 855 : | } *code_block_list=NULL, **next_code_blockp=&code_block_list; | ||
| 856 : | |||
| 857 : | anton | 1.74 | Address append_prim(Cell p) |
| 858 : | { | ||
| 859 : | PrimInfo *pi = &priminfos[p]; | ||
| 860 : | Address old_code_here = code_here; | ||
| 861 : | |||
| 862 : | if (code_area+code_area_size < code_here+pi->length+pi->restlength) { | ||
| 863 : | anton | 1.75 | struct code_block_list *p; |
| 864 : | anton | 1.74 | append_jump(); |
| 865 : | anton | 1.93 | flush_to_here(); |
| 866 : | anton | 1.75 | if (*next_code_blockp == NULL) { |
| 867 : | code_here = start_flush = code_area = my_alloc(code_area_size); | ||
| 868 : | p = (struct code_block_list *)malloc(sizeof(struct code_block_list)); | ||
| 869 : | *next_code_blockp = p; | ||
| 870 : | p->next = NULL; | ||
| 871 : | p->block = code_here; | ||
| 872 : | p->size = code_area_size; | ||
| 873 : | } else { | ||
| 874 : | p = *next_code_blockp; | ||
| 875 : | code_here = start_flush = code_area = p->block; | ||
| 876 : | } | ||
| 877 : | anton | 1.74 | old_code_here = code_here; |
| 878 : | anton | 1.75 | next_code_blockp = &(p->next); |
| 879 : | anton | 1.74 | } |
| 880 : | memcpy(code_here, pi->start, pi->length); | ||
| 881 : | code_here += pi->length; | ||
| 882 : | return old_code_here; | ||
| 883 : | } | ||
| 884 : | #endif | ||
| 885 : | anton | 1.75 | |
| 886 : | int forget_dyncode(Address code) | ||
| 887 : | { | ||
| 888 : | #ifdef NO_DYNAMIC | ||
| 889 : | return -1; | ||
| 890 : | #else | ||
| 891 : | struct code_block_list *p, **pp; | ||
| 892 : | |||
| 893 : | for (pp=&code_block_list, p=*pp; p!=NULL; pp=&(p->next), p=*pp) { | ||
| 894 : | if (code >= p->block && code < p->block+p->size) { | ||
| 895 : | next_code_blockp = &(p->next); | ||
| 896 : | code_here = start_flush = code; | ||
| 897 : | code_area = p->block; | ||
| 898 : | last_jump = 0; | ||
| 899 : | return -1; | ||
| 900 : | } | ||
| 901 : | } | ||
| 902 : | anton | 1.78 | return -no_dynamic; |
| 903 : | anton | 1.75 | #endif /* !defined(NO_DYNAMIC) */ |
| 904 : | } | ||
| 905 : | |||
| 906 : | anton | 1.104 | long dyncodesize(void) |
| 907 : | { | ||
| 908 : | #ifndef NO_DYNAMIC | ||
| 909 : | anton | 1.106 | struct code_block_list *p; |
| 910 : | anton | 1.104 | long size=0; |
| 911 : | for (p=code_block_list; p!=NULL; p=p->next) { | ||
| 912 : | if (code_here >= p->block && code_here < p->block+p->size) | ||
| 913 : | return size + (code_here - p->block); | ||
| 914 : | else | ||
| 915 : | size += p->size; | ||
| 916 : | } | ||
| 917 : | #endif /* !defined(NO_DYNAMIC) */ | ||
| 918 : | return 0; | ||
| 919 : | } | ||
| 920 : | |||
| 921 : | anton | 1.90 | Label decompile_code(Label _code) |
| 922 : | anton | 1.75 | { |
| 923 : | anton | 1.76 | #ifdef NO_DYNAMIC |
| 924 : | anton | 1.90 | return _code; |
| 925 : | anton | 1.76 | #else /* !defined(NO_DYNAMIC) */ |
| 926 : | Cell i; | ||
| 927 : | anton | 1.77 | struct code_block_list *p; |
| 928 : | anton | 1.90 | Address code=_code; |
| 929 : | anton | 1.76 | |
| 930 : | anton | 1.77 | /* first, check if we are in code at all */ |
| 931 : | for (p = code_block_list;; p = p->next) { | ||
| 932 : | if (p == NULL) | ||
| 933 : | return code; | ||
| 934 : | if (code >= p->block && code < p->block+p->size) | ||
| 935 : | break; | ||
| 936 : | } | ||
| 937 : | anton | 1.76 | /* reverse order because NOOP might match other prims */ |
| 938 : | for (i=npriminfos-1; i>DOESJUMP; i--) { | ||
| 939 : | PrimInfo *pi=decomp_prims[i]; | ||
| 940 : | if (pi->start==code || (pi->start && memcmp(code,pi->start,pi->length)==0)) | ||
| 941 : | anton | 1.118 | return vm_prims[super2[super_costs[pi-priminfos-DOESJUMP-1].offset]+DOESJUMP+1]; |
| 942 : | /* return pi->start;*/ | ||
| 943 : | anton | 1.76 | } |
| 944 : | return code; | ||
| 945 : | #endif /* !defined(NO_DYNAMIC) */ | ||
| 946 : | anton | 1.75 | } |
| 947 : | anton | 1.74 | |
| 948 : | anton | 1.70 | #ifdef NO_IP |
| 949 : | int nbranchinfos=0; | ||
| 950 : | |||
| 951 : | struct branchinfo { | ||
| 952 : | Label *targetptr; /* *(bi->targetptr) is the target */ | ||
| 953 : | Cell *addressptr; /* store the target here */ | ||
| 954 : | } branchinfos[100000]; | ||
| 955 : | |||
| 956 : | int ndoesexecinfos=0; | ||
| 957 : | struct doesexecinfo { | ||
| 958 : | int branchinfo; /* fix the targetptr of branchinfos[...->branchinfo] */ | ||
| 959 : | Cell *xt; /* cfa of word whose does-code needs calling */ | ||
| 960 : | } doesexecinfos[10000]; | ||
| 961 : | |||
| 962 : | void set_rel_target(Cell *source, Label target) | ||
| 963 : | { | ||
| 964 : | *source = ((Cell)target)-(((Cell)source)+4); | ||
| 965 : | } | ||
| 966 : | |||
| 967 : | void register_branchinfo(Label source, Cell targetptr) | ||
| 968 : | { | ||
| 969 : | struct branchinfo *bi = &(branchinfos[nbranchinfos]); | ||
| 970 : | bi->targetptr = (Label *)targetptr; | ||
| 971 : | bi->addressptr = (Cell *)source; | ||
| 972 : | nbranchinfos++; | ||
| 973 : | } | ||
| 974 : | |||
| 975 : | Cell *compile_prim1arg(Cell p) | ||
| 976 : | { | ||
| 977 : | int l = priminfos[p].length; | ||
| 978 : | Address old_code_here=code_here; | ||
| 979 : | |||
| 980 : | anton | 1.74 | assert(vm_prims[p]==priminfos[p].start); |
| 981 : | append_prim(p); | ||
| 982 : | anton | 1.70 | return (Cell*)(old_code_here+priminfos[p].immargs[0].offset); |
| 983 : | } | ||
| 984 : | |||
| 985 : | Cell *compile_call2(Cell targetptr) | ||
| 986 : | { | ||
| 987 : | Cell *next_code_target; | ||
| 988 : | anton | 1.73 | PrimInfo *pi = &priminfos[N_call2]; |
| 989 : | anton | 1.74 | Address old_code_here = append_prim(N_call2); |
| 990 : | anton | 1.70 | |
| 991 : | anton | 1.74 | next_code_target = (Cell *)(old_code_here + pi->immargs[0].offset); |
| 992 : | register_branchinfo(old_code_here + pi->immargs[1].offset, targetptr); | ||
| 993 : | anton | 1.70 | return next_code_target; |
| 994 : | } | ||
| 995 : | #endif | ||
| 996 : | |||
| 997 : | void finish_code(void) | ||
| 998 : | { | ||
| 999 : | #ifdef NO_IP | ||
| 1000 : | Cell i; | ||
| 1001 : | |||
| 1002 : | compile_prim1(NULL); | ||
| 1003 : | for (i=0; i<ndoesexecinfos; i++) { | ||
| 1004 : | struct doesexecinfo *dei = &doesexecinfos[i]; | ||
| 1005 : | branchinfos[dei->branchinfo].targetptr = DOES_CODE1((dei->xt)); | ||
| 1006 : | } | ||
| 1007 : | ndoesexecinfos = 0; | ||
| 1008 : | for (i=0; i<nbranchinfos; i++) { | ||
| 1009 : | struct branchinfo *bi=&branchinfos[i]; | ||
| 1010 : | set_rel_target(bi->addressptr, *(bi->targetptr)); | ||
| 1011 : | } | ||
| 1012 : | nbranchinfos = 0; | ||
| 1013 : | anton | 1.48 | #endif |
| 1014 : | anton | 1.93 | flush_to_here(); |
| 1015 : | anton | 1.48 | } |
| 1016 : | |||
| 1017 : | anton | 1.108 | #if 0 |
| 1018 : | anton | 1.105 | /* compile *start into a dynamic superinstruction, updating *start */ |
| 1019 : | void compile_prim_dyn(Cell *start) | ||
| 1020 : | anton | 1.48 | { |
| 1021 : | anton | 1.108 | #if defined(NO_IP) |
| 1022 : | anton | 1.70 | static Cell *last_start=NULL; |
| 1023 : | static Xt last_prim=NULL; | ||
| 1024 : | /* delay work by one call in order to get relocated immargs */ | ||
| 1025 : | |||
| 1026 : | if (last_start) { | ||
| 1027 : | unsigned i = last_prim-vm_prims; | ||
| 1028 : | PrimInfo *pi=&priminfos[i]; | ||
| 1029 : | Cell *next_code_target=NULL; | ||
| 1030 : | |||
| 1031 : | assert(i<npriminfos); | ||
| 1032 : | anton | 1.73 | if (i==N_execute||i==N_perform||i==N_lit_perform) { |
| 1033 : | next_code_target = compile_prim1arg(N_set_next_code); | ||
| 1034 : | anton | 1.70 | } |
| 1035 : | anton | 1.73 | if (i==N_call) { |
| 1036 : | anton | 1.70 | next_code_target = compile_call2(last_start[1]); |
| 1037 : | anton | 1.73 | } else if (i==N_does_exec) { |
| 1038 : | anton | 1.70 | struct doesexecinfo *dei = &doesexecinfos[ndoesexecinfos++]; |
| 1039 : | anton | 1.73 | *compile_prim1arg(N_lit) = (Cell)PFA(last_start[1]); |
| 1040 : | anton | 1.70 | /* we cannot determine the callee now (last_start[1] may be a |
| 1041 : | forward reference), so just register an arbitrary target, and | ||
| 1042 : | register in dei that we need to fix this before resolving | ||
| 1043 : | branches */ | ||
| 1044 : | dei->branchinfo = nbranchinfos; | ||
| 1045 : | dei->xt = (Cell *)(last_start[1]); | ||
| 1046 : | next_code_target = compile_call2(NULL); | ||
| 1047 : | } else if (pi->start == NULL) { /* non-reloc */ | ||
| 1048 : | anton | 1.73 | next_code_target = compile_prim1arg(N_set_next_code); |
| 1049 : | set_rel_target(compile_prim1arg(N_abranch),*(Xt)last_prim); | ||
| 1050 : | anton | 1.70 | } else { |
| 1051 : | unsigned j; | ||
| 1052 : | anton | 1.74 | Address old_code_here = append_prim(i); |
| 1053 : | anton | 1.70 | |
| 1054 : | for (j=0; j<pi->nimmargs; j++) { | ||
| 1055 : | struct immarg *ia = &(pi->immargs[j]); | ||
| 1056 : | Cell argval = last_start[pi->nimmargs - j]; /* !! specific to prims */ | ||
| 1057 : | if (ia->rel) { /* !! assumption: relative refs are branches */ | ||
| 1058 : | anton | 1.74 | register_branchinfo(old_code_here + ia->offset, argval); |
| 1059 : | anton | 1.70 | } else /* plain argument */ |
| 1060 : | anton | 1.74 | *(Cell *)(old_code_here + ia->offset) = argval; |
| 1061 : | anton | 1.70 | } |
| 1062 : | } | ||
| 1063 : | if (next_code_target!=NULL) | ||
| 1064 : | *next_code_target = (Cell)code_here; | ||
| 1065 : | } | ||
| 1066 : | if (start) { | ||
| 1067 : | last_prim = (Xt)*start; | ||
| 1068 : | *start = (Cell)code_here; | ||
| 1069 : | } | ||
| 1070 : | last_start = start; | ||
| 1071 : | return; | ||
| 1072 : | #elif !defined(NO_DYNAMIC) | ||
| 1073 : | Label prim=(Label)*start; | ||
| 1074 : | anton | 1.58 | unsigned i; |
| 1075 : | anton | 1.74 | Address old_code_here; |
| 1076 : | anton | 1.48 | |
| 1077 : | anton | 1.58 | i = ((Xt)prim)-vm_prims; |
| 1078 : | anton | 1.56 | prim = *(Xt)prim; |
| 1079 : | anton | 1.70 | if (no_dynamic) { |
| 1080 : | *start = (Cell)prim; | ||
| 1081 : | return; | ||
| 1082 : | } | ||
| 1083 : | anton | 1.58 | if (i>=npriminfos || priminfos[i].start == 0) { /* not a relocatable prim */ |
| 1084 : | anton | 1.74 | append_jump(); |
| 1085 : | anton | 1.70 | *start = (Cell)prim; |
| 1086 : | return; | ||
| 1087 : | anton | 1.47 | } |
| 1088 : | anton | 1.58 | assert(priminfos[i].start = prim); |
| 1089 : | anton | 1.50 | #ifdef ALIGN_CODE |
| 1090 : | anton | 1.87 | /* ALIGN_CODE;*/ |
| 1091 : | anton | 1.50 | #endif |
| 1092 : | anton | 1.74 | assert(prim==priminfos[i].start); |
| 1093 : | old_code_here = append_prim(i); | ||
| 1094 : | last_jump = (priminfos[i].superend) ? 0 : i; | ||
| 1095 : | anton | 1.70 | *start = (Cell)old_code_here; |
| 1096 : | return; | ||
| 1097 : | anton | 1.61 | #else /* !defined(DOUBLY_INDIRECT), no code replication */ |
| 1098 : | anton | 1.70 | Label prim=(Label)*start; |
| 1099 : | anton | 1.61 | #if !defined(INDIRECT_THREADED) |
| 1100 : | anton | 1.56 | prim = *(Xt)prim; |
| 1101 : | anton | 1.61 | #endif |
| 1102 : | anton | 1.70 | *start = (Cell)prim; |
| 1103 : | return; | ||
| 1104 : | anton | 1.54 | #endif /* !defined(DOUBLY_INDIRECT) */ |
| 1105 : | anton | 1.70 | } |
| 1106 : | anton | 1.108 | #endif /* 0 */ |
| 1107 : | |||
| 1108 : | Cell compile_prim_dyn(unsigned p) | ||
| 1109 : | { | ||
| 1110 : | Cell static_prim = (Cell)vm_prims[p+DOESJUMP+1]; | ||
| 1111 : | #if defined(NO_DYNAMIC) | ||
| 1112 : | return static_prim; | ||
| 1113 : | #else /* !defined(NO_DYNAMIC) */ | ||
| 1114 : | Address old_code_here; | ||
| 1115 : | |||
| 1116 : | if (no_dynamic) | ||
| 1117 : | return static_prim; | ||
| 1118 : | p += DOESJUMP+1; | ||
| 1119 : | if (p>=npriminfos || priminfos[p].start == 0) { /* not a relocatable prim */ | ||
| 1120 : | append_jump(); | ||
| 1121 : | return static_prim; | ||
| 1122 : | } | ||
| 1123 : | old_code_here = append_prim(p); | ||
| 1124 : | last_jump = (priminfos[p].superend) ? 0 : p; | ||
| 1125 : | return (Cell)old_code_here; | ||
| 1126 : | #endif /* !defined(NO_DYNAMIC) */ | ||
| 1127 : | } | ||
| 1128 : | anton | 1.70 | |
| 1129 : | anton | 1.109 | #ifndef NO_DYNAMIC |
| 1130 : | int cost_codesize(int prim) | ||
| 1131 : | { | ||
| 1132 : | return priminfos[prim+DOESJUMP+1].length; | ||
| 1133 : | } | ||
| 1134 : | #endif | ||
| 1135 : | |||
| 1136 : | int cost_ls(int prim) | ||
| 1137 : | { | ||
| 1138 : | struct cost *c = super_costs+prim; | ||
| 1139 : | |||
| 1140 : | return c->loads + c->stores; | ||
| 1141 : | } | ||
| 1142 : | |||
| 1143 : | int cost_lsu(int prim) | ||
| 1144 : | { | ||
| 1145 : | struct cost *c = super_costs+prim; | ||
| 1146 : | |||
| 1147 : | return c->loads + c->stores + c->updates; | ||
| 1148 : | } | ||
| 1149 : | |||
| 1150 : | int cost_nexts(int prim) | ||
| 1151 : | { | ||
| 1152 : | return 1; | ||
| 1153 : | } | ||
| 1154 : | |||
| 1155 : | typedef int Costfunc(int); | ||
| 1156 : | Costfunc *ss_cost = /* cost function for optimize_bb */ | ||
| 1157 : | #ifdef NO_DYNAMIC | ||
| 1158 : | cost_lsu; | ||
| 1159 : | #else | ||
| 1160 : | cost_codesize; | ||
| 1161 : | #endif | ||
| 1162 : | |||
| 1163 : | anton | 1.110 | struct { |
| 1164 : | Costfunc *costfunc; | ||
| 1165 : | char *metricname; | ||
| 1166 : | long sum; | ||
| 1167 : | } cost_sums[] = { | ||
| 1168 : | #ifndef NO_DYNAMIC | ||
| 1169 : | { cost_codesize, "codesize", 0 }, | ||
| 1170 : | #endif | ||
| 1171 : | { cost_ls, "ls", 0 }, | ||
| 1172 : | { cost_lsu, "lsu", 0 }, | ||
| 1173 : | { cost_nexts, "nexts", 0 } | ||
| 1174 : | }; | ||
| 1175 : | |||
| 1176 : | anton | 1.106 | #define MAX_BB 128 /* maximum number of instructions in BB */ |
| 1177 : | |||
| 1178 : | anton | 1.107 | /* use dynamic programming to find the shortest paths within the basic |
| 1179 : | block origs[0..ninsts-1]; optimals[i] contains the superinstruction | ||
| 1180 : | on the shortest path to the end of the BB */ | ||
| 1181 : | void optimize_bb(short origs[], short optimals[], int ninsts) | ||
| 1182 : | { | ||
| 1183 : | anton | 1.110 | int i,j, mincost; |
| 1184 : | anton | 1.107 | static int costs[MAX_BB+1]; |
| 1185 : | |||
| 1186 : | assert(ninsts<MAX_BB); | ||
| 1187 : | costs[ninsts]=0; | ||
| 1188 : | for (i=ninsts-1; i>=0; i--) { | ||
| 1189 : | optimals[i] = origs[i]; | ||
| 1190 : | anton | 1.110 | costs[i] = mincost = costs[i+1] + ss_cost(optimals[i]); |
| 1191 : | anton | 1.107 | for (j=2; j<=max_super && i+j<=ninsts ; j++) { |
| 1192 : | int super, jcost; | ||
| 1193 : | |||
| 1194 : | super = lookup_super(origs+i,j); | ||
| 1195 : | if (super >= 0) { | ||
| 1196 : | anton | 1.109 | jcost = costs[i+j] + ss_cost(super); |
| 1197 : | anton | 1.110 | if (jcost <= mincost) { |
| 1198 : | anton | 1.107 | optimals[i] = super; |
| 1199 : | anton | 1.110 | mincost = jcost; |
| 1200 : | if (!ss_greedy) | ||
| 1201 : | costs[i] = jcost; | ||
| 1202 : | anton | 1.107 | } |
| 1203 : | } | ||
| 1204 : | } | ||
| 1205 : | } | ||
| 1206 : | } | ||
| 1207 : | |||
| 1208 : | /* rewrite the instructions pointed to by instps to use the | ||
| 1209 : | superinstructions in optimals */ | ||
| 1210 : | void rewrite_bb(Cell *instps[], short *optimals, int ninsts) | ||
| 1211 : | { | ||
| 1212 : | anton | 1.110 | int i,j, nextdyn; |
| 1213 : | anton | 1.108 | Cell inst; |
| 1214 : | anton | 1.107 | |
| 1215 : | for (i=0, nextdyn=0; i<ninsts; i++) { | ||
| 1216 : | anton | 1.108 | if (i==nextdyn) { /* compile dynamically */ |
| 1217 : | anton | 1.107 | nextdyn += super_costs[optimals[i]].length; |
| 1218 : | anton | 1.108 | inst = compile_prim_dyn(optimals[i]); |
| 1219 : | anton | 1.110 | for (j=0; j<sizeof(cost_sums)/sizeof(cost_sums[0]); j++) |
| 1220 : | cost_sums[j].sum += cost_sums[j].costfunc(optimals[i]); | ||
| 1221 : | anton | 1.108 | } else { /* compile statically */ |
| 1222 : | anton | 1.109 | inst = (Cell)vm_prims[optimals[i]+DOESJUMP+1]; |
| 1223 : | anton | 1.107 | } |
| 1224 : | anton | 1.108 | *(instps[i]) = inst; |
| 1225 : | anton | 1.107 | } |
| 1226 : | } | ||
| 1227 : | |||
| 1228 : | anton | 1.105 | /* compile *start, possibly rewriting it into a static and/or dynamic |
| 1229 : | superinstruction */ | ||
| 1230 : | void compile_prim1(Cell *start) | ||
| 1231 : | anton | 1.70 | { |
| 1232 : | anton | 1.108 | #if defined(DOUBLY_INDIRECT) |
| 1233 : | Label prim=(Label)*start; | ||
| 1234 : | if (prim<((Label)(xts+DOESJUMP)) || prim>((Label)(xts+npriminfos))) { | ||
| 1235 : | fprintf(stderr,"compile_prim encountered xt %p\n", prim); | ||
| 1236 : | *start=(Cell)prim; | ||
| 1237 : | return; | ||
| 1238 : | } else { | ||
| 1239 : | *start = (Cell)(prim-((Label)xts)+((Label)vm_prims)); | ||
| 1240 : | return; | ||
| 1241 : | } | ||
| 1242 : | #elif defined(INDIRECT_THREADED) | ||
| 1243 : | return; | ||
| 1244 : | anton | 1.112 | #else /* !(defined(DOUBLY_INDIRECT) || defined(INDIRECT_THREADED)) */ |
| 1245 : | anton | 1.107 | static Cell *instps[MAX_BB]; |
| 1246 : | static short origs[MAX_BB]; | ||
| 1247 : | static short optimals[MAX_BB]; | ||
| 1248 : | anton | 1.106 | static int ninsts=0; |
| 1249 : | unsigned prim_num; | ||
| 1250 : | |||
| 1251 : | if (start==NULL) | ||
| 1252 : | goto end_bb; | ||
| 1253 : | prim_num = ((Xt)*start)-vm_prims; | ||
| 1254 : | if (prim_num >= npriminfos) | ||
| 1255 : | goto end_bb; | ||
| 1256 : | assert(ninsts<MAX_BB); | ||
| 1257 : | anton | 1.107 | instps[ninsts] = start; |
| 1258 : | origs[ninsts] = prim_num-DOESJUMP-1; | ||
| 1259 : | ninsts++; | ||
| 1260 : | anton | 1.106 | if (ninsts >= MAX_BB || superend[prim_num-DOESJUMP-1]) { |
| 1261 : | end_bb: | ||
| 1262 : | anton | 1.107 | optimize_bb(origs,optimals,ninsts); |
| 1263 : | rewrite_bb(instps,optimals,ninsts); | ||
| 1264 : | anton | 1.106 | ninsts=0; |
| 1265 : | } | ||
| 1266 : | anton | 1.112 | #endif /* !(defined(DOUBLY_INDIRECT) || defined(INDIRECT_THREADED)) */ |
| 1267 : | anton | 1.47 | } |
| 1268 : | |||
| 1269 : | anton | 1.69 | #if defined(PRINT_SUPER_LENGTHS) && !defined(NO_DYNAMIC) |
| 1270 : | anton | 1.59 | Cell prim_length(Cell prim) |
| 1271 : | { | ||
| 1272 : | return priminfos[prim+DOESJUMP+1].length; | ||
| 1273 : | } | ||
| 1274 : | #endif | ||
| 1275 : | |||
| 1276 : | anton | 1.1 | Address loader(FILE *imagefile, char* filename) |
| 1277 : | /* returns the address of the image proper (after the preamble) */ | ||
| 1278 : | { | ||
| 1279 : | ImageHeader header; | ||
| 1280 : | Address image; | ||
| 1281 : | Address imp; /* image+preamble */ | ||
| 1282 : | anton | 1.17 | Char magic[8]; |
| 1283 : | char magic7; /* size byte of magic number */ | ||
| 1284 : | anton | 1.1 | Cell preamblesize=0; |
| 1285 : | pazsan | 1.6 | Cell data_offset = offset_image ? 56*sizeof(Cell) : 0; |
| 1286 : | anton | 1.1 | UCell check_sum; |
| 1287 : | pazsan | 1.15 | Cell ausize = ((RELINFOBITS == 8) ? 0 : |
| 1288 : | (RELINFOBITS == 16) ? 1 : | ||
| 1289 : | (RELINFOBITS == 32) ? 2 : 3); | ||
| 1290 : | Cell charsize = ((sizeof(Char) == 1) ? 0 : | ||
| 1291 : | (sizeof(Char) == 2) ? 1 : | ||
| 1292 : | (sizeof(Char) == 4) ? 2 : 3) + ausize; | ||
| 1293 : | Cell cellsize = ((sizeof(Cell) == 1) ? 0 : | ||
| 1294 : | (sizeof(Cell) == 2) ? 1 : | ||
| 1295 : | (sizeof(Cell) == 4) ? 2 : 3) + ausize; | ||
| 1296 : | anton | 1.21 | Cell sizebyte = (ausize << 5) + (charsize << 3) + (cellsize << 1) + |
| 1297 : | #ifdef WORDS_BIGENDIAN | ||
| 1298 : | 0 | ||
| 1299 : | #else | ||
| 1300 : | 1 | ||
| 1301 : | #endif | ||
| 1302 : | ; | ||
| 1303 : | anton | 1.1 | |
| 1304 : | anton | 1.43 | vm_prims = engine(0,0,0,0,0); |
| 1305 : | anton | 1.47 | check_prims(vm_prims); |
| 1306 : | anton | 1.106 | prepare_super_table(); |
| 1307 : | anton | 1.1 | #ifndef DOUBLY_INDIRECT |
| 1308 : | anton | 1.59 | #ifdef PRINT_SUPER_LENGTHS |
| 1309 : | print_super_lengths(); | ||
| 1310 : | #endif | ||
| 1311 : | anton | 1.43 | check_sum = checksum(vm_prims); |
| 1312 : | anton | 1.1 | #else /* defined(DOUBLY_INDIRECT) */ |
| 1313 : | anton | 1.43 | check_sum = (UCell)vm_prims; |
| 1314 : | anton | 1.1 | #endif /* defined(DOUBLY_INDIRECT) */ |
| 1315 : | pazsan | 1.10 | |
| 1316 : | do { | ||
| 1317 : | if(fread(magic,sizeof(Char),8,imagefile) < 8) { | ||
| 1318 : | anton | 1.84 | fprintf(stderr,"%s: image %s doesn't seem to be a Gforth (>=0.6) image.\n", |
| 1319 : | pazsan | 1.10 | progname, filename); |
| 1320 : | exit(1); | ||
| 1321 : | anton | 1.1 | } |
| 1322 : | pazsan | 1.10 | preamblesize+=8; |
| 1323 : | anton | 1.84 | } while(memcmp(magic,"Gforth3",7)); |
| 1324 : | anton | 1.17 | magic7 = magic[7]; |
| 1325 : | anton | 1.1 | if (debug) { |
| 1326 : | anton | 1.17 | magic[7]='\0'; |
| 1327 : | anton | 1.21 | fprintf(stderr,"Magic found: %s ", magic); |
| 1328 : | print_sizes(magic7); | ||
| 1329 : | anton | 1.1 | } |
| 1330 : | |||
| 1331 : | anton | 1.21 | if (magic7 != sizebyte) |
| 1332 : | { | ||
| 1333 : | fprintf(stderr,"This image is: "); | ||
| 1334 : | print_sizes(magic7); | ||
| 1335 : | fprintf(stderr,"whereas the machine is "); | ||
| 1336 : | print_sizes(sizebyte); | ||
| 1337 : | anton | 1.1 | exit(-2); |
| 1338 : | }; | ||
| 1339 : | |||
| 1340 : | fread((void *)&header,sizeof(ImageHeader),1,imagefile); | ||
| 1341 : | pazsan | 1.10 | |
| 1342 : | set_stack_sizes(&header); | ||
| 1343 : | anton | 1.1 | |
| 1344 : | #if HAVE_GETPAGESIZE | ||
| 1345 : | pagesize=getpagesize(); /* Linux/GNU libc offers this */ | ||
| 1346 : | #elif HAVE_SYSCONF && defined(_SC_PAGESIZE) | ||
| 1347 : | pagesize=sysconf(_SC_PAGESIZE); /* POSIX.4 */ | ||
| 1348 : | #elif PAGESIZE | ||
| 1349 : | pagesize=PAGESIZE; /* in limits.h according to Gallmeister's POSIX.4 book */ | ||
| 1350 : | #endif | ||
| 1351 : | if (debug) | ||
| 1352 : | jwilke | 1.5 | fprintf(stderr,"pagesize=%ld\n",(unsigned long) pagesize); |
| 1353 : | anton | 1.1 | |
| 1354 : | anton | 1.34 | image = dict_alloc_read(imagefile, preamblesize+header.image_size, |
| 1355 : | preamblesize+dictsize, data_offset); | ||
| 1356 : | anton | 1.33 | imp=image+preamblesize; |
| 1357 : | anton | 1.57 | alloc_stacks((ImageHeader *)imp); |
| 1358 : | anton | 1.1 | if (clear_dictionary) |
| 1359 : | anton | 1.33 | memset(imp+header.image_size, 0, dictsize-header.image_size); |
| 1360 : | anton | 1.90 | if(header.base==0 || header.base == (Address)0x100) { |
| 1361 : | anton | 1.1 | Cell reloc_size=((header.image_size-1)/sizeof(Cell))/8+1; |
| 1362 : | char reloc_bits[reloc_size]; | ||
| 1363 : | anton | 1.33 | fseek(imagefile, preamblesize+header.image_size, SEEK_SET); |
| 1364 : | pazsan | 1.10 | fread(reloc_bits, 1, reloc_size, imagefile); |
| 1365 : | anton | 1.90 | relocate((Cell *)imp, reloc_bits, header.image_size, (Cell)header.base, vm_prims); |
| 1366 : | anton | 1.1 | #if 0 |
| 1367 : | { /* let's see what the relocator did */ | ||
| 1368 : | FILE *snapshot=fopen("snapshot.fi","wb"); | ||
| 1369 : | fwrite(image,1,imagesize,snapshot); | ||
| 1370 : | fclose(snapshot); | ||
| 1371 : | } | ||
| 1372 : | #endif | ||
| 1373 : | jwilke | 1.46 | } |
| 1374 : | else if(header.base!=imp) { | ||
| 1375 : | fprintf(stderr,"%s: Cannot load nonrelocatable image (compiled for address $%lx) at address $%lx\n", | ||
| 1376 : | progname, (unsigned long)header.base, (unsigned long)imp); | ||
| 1377 : | exit(1); | ||
| 1378 : | anton | 1.1 | } |
| 1379 : | if (header.checksum==0) | ||
| 1380 : | ((ImageHeader *)imp)->checksum=check_sum; | ||
| 1381 : | else if (header.checksum != check_sum) { | ||
| 1382 : | fprintf(stderr,"%s: Checksum of image ($%lx) does not match the executable ($%lx)\n", | ||
| 1383 : | progname, (unsigned long)(header.checksum),(unsigned long)check_sum); | ||
| 1384 : | exit(1); | ||
| 1385 : | } | ||
| 1386 : | anton | 1.53 | #ifdef DOUBLY_INDIRECT |
| 1387 : | ((ImageHeader *)imp)->xt_base = xts; | ||
| 1388 : | #endif | ||
| 1389 : | anton | 1.1 | fclose(imagefile); |
| 1390 : | |||
| 1391 : | anton | 1.56 | /* unnecessary, except maybe for CODE words */ |
| 1392 : | /* FLUSH_ICACHE(imp, header.image_size);*/ | ||
| 1393 : | anton | 1.1 | |
| 1394 : | return imp; | ||
| 1395 : | } | ||
| 1396 : | |||
| 1397 : | anton | 1.72 | /* pointer to last '/' or '\' in file, 0 if there is none. */ |
| 1398 : | char *onlypath(char *filename) | ||
| 1399 : | pazsan | 1.10 | { |
| 1400 : | anton | 1.72 | return strrchr(filename, DIRSEP); |
| 1401 : | anton | 1.1 | } |
| 1402 : | |||
| 1403 : | FILE *openimage(char *fullfilename) | ||
| 1404 : | pazsan | 1.10 | { |
| 1405 : | FILE *image_file; | ||
| 1406 : | anton | 1.28 | char * expfilename = tilde_cstr(fullfilename, strlen(fullfilename), 1); |
| 1407 : | pazsan | 1.10 | |
| 1408 : | anton | 1.28 | image_file=fopen(expfilename,"rb"); |
| 1409 : | anton | 1.1 | if (image_file!=NULL && debug) |
| 1410 : | anton | 1.28 | fprintf(stderr, "Opened image file: %s\n", expfilename); |
| 1411 : | pazsan | 1.10 | return image_file; |
| 1412 : | anton | 1.1 | } |
| 1413 : | |||
| 1414 : | anton | 1.28 | /* try to open image file concat(path[0:len],imagename) */ |
| 1415 : | anton | 1.1 | FILE *checkimage(char *path, int len, char *imagename) |
| 1416 : | pazsan | 1.10 | { |
| 1417 : | int dirlen=len; | ||
| 1418 : | anton | 1.1 | char fullfilename[dirlen+strlen(imagename)+2]; |
| 1419 : | pazsan | 1.10 | |
| 1420 : | anton | 1.1 | memcpy(fullfilename, path, dirlen); |
| 1421 : | pazsan | 1.71 | if (fullfilename[dirlen-1]!=DIRSEP) |
| 1422 : | fullfilename[dirlen++]=DIRSEP; | ||
| 1423 : | anton | 1.1 | strcpy(fullfilename+dirlen,imagename); |
| 1424 : | pazsan | 1.10 | return openimage(fullfilename); |
| 1425 : | anton | 1.1 | } |
| 1426 : | |||
| 1427 : | pazsan | 1.10 | FILE * open_image_file(char * imagename, char * path) |
| 1428 : | anton | 1.1 | { |
| 1429 : | pazsan | 1.10 | FILE * image_file=NULL; |
| 1430 : | anton | 1.28 | char *origpath=path; |
| 1431 : | pazsan | 1.10 | |
| 1432 : | pazsan | 1.71 | if(strchr(imagename, DIRSEP)==NULL) { |
| 1433 : | pazsan | 1.10 | /* first check the directory where the exe file is in !! 01may97jaw */ |
| 1434 : | if (onlypath(progname)) | ||
| 1435 : | anton | 1.72 | image_file=checkimage(progname, onlypath(progname)-progname, imagename); |
| 1436 : | pazsan | 1.10 | if (!image_file) |
| 1437 : | do { | ||
| 1438 : | char *pend=strchr(path, PATHSEP); | ||
| 1439 : | if (pend==NULL) | ||
| 1440 : | pend=path+strlen(path); | ||
| 1441 : | if (strlen(path)==0) break; | ||
| 1442 : | image_file=checkimage(path, pend-path, imagename); | ||
| 1443 : | path=pend+(*pend==PATHSEP); | ||
| 1444 : | } while (image_file==NULL); | ||
| 1445 : | } else { | ||
| 1446 : | image_file=openimage(imagename); | ||
| 1447 : | } | ||
| 1448 : | anton | 1.1 | |
| 1449 : | pazsan | 1.10 | if (!image_file) { |
| 1450 : | fprintf(stderr,"%s: cannot open image file %s in path %s for reading\n", | ||
| 1451 : | anton | 1.28 | progname, imagename, origpath); |
| 1452 : | pazsan | 1.10 | exit(1); |
| 1453 : | anton | 1.7 | } |
| 1454 : | |||
| 1455 : | pazsan | 1.10 | return image_file; |
| 1456 : | } | ||
| 1457 : | pazsan | 1.11 | #endif |
| 1458 : | |||
| 1459 : | #ifdef HAS_OS | ||
| 1460 : | UCell convsize(char *s, UCell elemsize) | ||
| 1461 : | /* converts s of the format [0-9]+[bekMGT]? (e.g. 25k) into the number | ||
| 1462 : | of bytes. the letter at the end indicates the unit, where e stands | ||
| 1463 : | for the element size. default is e */ | ||
| 1464 : | { | ||
| 1465 : | char *endp; | ||
| 1466 : | UCell n,m; | ||
| 1467 : | |||
| 1468 : | m = elemsize; | ||
| 1469 : | n = strtoul(s,&endp,0); | ||
| 1470 : | if (endp!=NULL) { | ||
| 1471 : | if (strcmp(endp,"b")==0) | ||
| 1472 : | m=1; | ||
| 1473 : | else if (strcmp(endp,"k")==0) | ||
| 1474 : | m=1024; | ||
| 1475 : | else if (strcmp(endp,"M")==0) | ||
| 1476 : | m=1024*1024; | ||
| 1477 : | else if (strcmp(endp,"G")==0) | ||
| 1478 : | m=1024*1024*1024; | ||
| 1479 : | else if (strcmp(endp,"T")==0) { | ||
| 1480 : | #if (SIZEOF_CHAR_P > 4) | ||
| 1481 : | anton | 1.24 | m=1024L*1024*1024*1024; |
| 1482 : | pazsan | 1.11 | #else |
| 1483 : | fprintf(stderr,"%s: size specification \"%s\" too large for this machine\n", progname, endp); | ||
| 1484 : | exit(1); | ||
| 1485 : | #endif | ||
| 1486 : | } else if (strcmp(endp,"e")!=0 && strcmp(endp,"")!=0) { | ||
| 1487 : | fprintf(stderr,"%s: cannot grok size specification %s: invalid unit \"%s\"\n", progname, s, endp); | ||
| 1488 : | exit(1); | ||
| 1489 : | } | ||
| 1490 : | } | ||
| 1491 : | return n*m; | ||
| 1492 : | } | ||
| 1493 : | pazsan | 1.10 | |
| 1494 : | anton | 1.109 | enum { |
| 1495 : | ss_number = 256, | ||
| 1496 : | ss_min_codesize, | ||
| 1497 : | ss_min_ls, | ||
| 1498 : | ss_min_lsu, | ||
| 1499 : | ss_min_nexts, | ||
| 1500 : | }; | ||
| 1501 : | |||
| 1502 : | pazsan | 1.10 | void gforth_args(int argc, char ** argv, char ** path, char ** imagename) |
| 1503 : | { | ||
| 1504 : | int c; | ||
| 1505 : | |||
| 1506 : | anton | 1.1 | opterr=0; |
| 1507 : | while (1) { | ||
| 1508 : | int option_index=0; | ||
| 1509 : | static struct option opts[] = { | ||
| 1510 : | anton | 1.29 | {"appl-image", required_argument, NULL, 'a'}, |
| 1511 : | anton | 1.1 | {"image-file", required_argument, NULL, 'i'}, |
| 1512 : | {"dictionary-size", required_argument, NULL, 'm'}, | ||
| 1513 : | {"data-stack-size", required_argument, NULL, 'd'}, | ||
| 1514 : | {"return-stack-size", required_argument, NULL, 'r'}, | ||
| 1515 : | {"fp-stack-size", required_argument, NULL, 'f'}, | ||
| 1516 : | {"locals-stack-size", required_argument, NULL, 'l'}, | ||
| 1517 : | {"path", required_argument, NULL, 'p'}, | ||
| 1518 : | {"version", no_argument, NULL, 'v'}, | ||
| 1519 : | {"help", no_argument, NULL, 'h'}, | ||
| 1520 : | /* put something != 0 into offset_image */ | ||
| 1521 : | {"offset-image", no_argument, &offset_image, 1}, | ||
| 1522 : | {"no-offset-im", no_argument, &offset_image, 0}, | ||
| 1523 : | {"clear-dictionary", no_argument, &clear_dictionary, 1}, | ||
| 1524 : | anton | 1.4 | {"die-on-signal", no_argument, &die_on_signal, 1}, |
| 1525 : | anton | 1.1 | {"debug", no_argument, &debug, 1}, |
| 1526 : | anton | 1.60 | {"no-super", no_argument, &no_super, 1}, |
| 1527 : | {"no-dynamic", no_argument, &no_dynamic, 1}, | ||
| 1528 : | anton | 1.66 | {"dynamic", no_argument, &no_dynamic, 0}, |
| 1529 : | anton | 1.110 | {"print-metrics", no_argument, &print_metrics, 1}, |
| 1530 : | anton | 1.109 | {"ss-number", required_argument, NULL, ss_number}, |
| 1531 : | #ifndef NO_DYNAMIC | ||
| 1532 : | {"ss-min-codesize", no_argument, NULL, ss_min_codesize}, | ||
| 1533 : | #endif | ||
| 1534 : | {"ss-min-ls", no_argument, NULL, ss_min_ls}, | ||
| 1535 : | {"ss-min-lsu", no_argument, NULL, ss_min_lsu}, | ||
| 1536 : | {"ss-min-nexts", no_argument, NULL, ss_min_nexts}, | ||
| 1537 : | anton | 1.110 | {"ss-greedy", no_argument, &ss_greedy, 1}, |
| 1538 : | anton | 1.1 | {0,0,0,0} |
| 1539 : | /* no-init-file, no-rc? */ | ||
| 1540 : | }; | ||
| 1541 : | |||
| 1542 : | pazsan | 1.36 | c = getopt_long(argc, argv, "+i:m:d:r:f:l:p:vhoncsx", opts, &option_index); |
| 1543 : | anton | 1.1 | |
| 1544 : | switch (c) { | ||
| 1545 : | anton | 1.29 | case EOF: return; |
| 1546 : | case '?': optind--; return; | ||
| 1547 : | case 'a': *imagename = optarg; return; | ||
| 1548 : | pazsan | 1.10 | case 'i': *imagename = optarg; break; |
| 1549 : | anton | 1.1 | case 'm': dictsize = convsize(optarg,sizeof(Cell)); break; |
| 1550 : | case 'd': dsize = convsize(optarg,sizeof(Cell)); break; | ||
| 1551 : | case 'r': rsize = convsize(optarg,sizeof(Cell)); break; | ||
| 1552 : | case 'f': fsize = convsize(optarg,sizeof(Float)); break; | ||
| 1553 : | case 'l': lsize = convsize(optarg,sizeof(Cell)); break; | ||
| 1554 : | pazsan | 1.10 | case 'p': *path = optarg; break; |
| 1555 : | pazsan | 1.36 | case 'o': offset_image = 1; break; |
| 1556 : | case 'n': offset_image = 0; break; | ||
| 1557 : | case 'c': clear_dictionary = 1; break; | ||
| 1558 : | case 's': die_on_signal = 1; break; | ||
| 1559 : | case 'x': debug = 1; break; | ||
| 1560 : | anton | 1.83 | case 'v': fputs(PACKAGE_STRING"\n", stderr); exit(0); |
| 1561 : | anton | 1.109 | case ss_number: static_super_number = atoi(optarg); break; |
| 1562 : | #ifndef NO_DYNAMIC | ||
| 1563 : | case ss_min_codesize: ss_cost = cost_codesize; break; | ||
| 1564 : | #endif | ||
| 1565 : | case ss_min_ls: ss_cost = cost_ls; break; | ||
| 1566 : | case ss_min_lsu: ss_cost = cost_lsu; break; | ||
| 1567 : | case ss_min_nexts: ss_cost = cost_nexts; break; | ||
| 1568 : | anton | 1.1 | case 'h': |
| 1569 : | anton | 1.29 | fprintf(stderr, "Usage: %s [engine options] ['--'] [image arguments]\n\ |
| 1570 : | anton | 1.1 | Engine Options:\n\ |
| 1571 : | anton | 1.29 | --appl-image FILE equivalent to '--image-file=FILE --'\n\ |
| 1572 : | pazsan | 1.10 | --clear-dictionary Initialize the dictionary with 0 bytes\n\ |
| 1573 : | -d SIZE, --data-stack-size=SIZE Specify data stack size\n\ | ||
| 1574 : | --debug Print debugging information during startup\n\ | ||
| 1575 : | --die-on-signal exit instead of CATCHing some signals\n\ | ||
| 1576 : | anton | 1.66 | --dynamic use dynamic native code\n\ |
| 1577 : | pazsan | 1.10 | -f SIZE, --fp-stack-size=SIZE Specify floating point stack size\n\ |
| 1578 : | -h, --help Print this message and exit\n\ | ||
| 1579 : | -i FILE, --image-file=FILE Use image FILE instead of `gforth.fi'\n\ | ||
| 1580 : | -l SIZE, --locals-stack-size=SIZE Specify locals stack size\n\ | ||
| 1581 : | -m SIZE, --dictionary-size=SIZE Specify Forth dictionary size\n\ | ||
| 1582 : | anton | 1.60 | --no-dynamic Use only statically compiled primitives\n\ |
| 1583 : | pazsan | 1.10 | --no-offset-im Load image at normal position\n\ |
| 1584 : | anton | 1.60 | --no-super No dynamically formed superinstructions\n\ |
| 1585 : | pazsan | 1.10 | --offset-image Load image at a different position\n\ |
| 1586 : | -p PATH, --path=PATH Search path for finding image and sources\n\ | ||
| 1587 : | anton | 1.110 | --print-metrics Print some code generation metrics on exit\n\ |
| 1588 : | pazsan | 1.10 | -r SIZE, --return-stack-size=SIZE Specify return stack size\n\ |
| 1589 : | anton | 1.111 | --ss-greedy greedy, not optimal superinst selection\n\ |
| 1590 : | --ss-min-codesize select superinsts for smallest native code\n\ | ||
| 1591 : | --ss-min-ls minimize loads and stores\n\ | ||
| 1592 : | --ss-min-lsu minimize loads, stores, and pointer updates\n\ | ||
| 1593 : | --ss-min-nexts minimize the number of static superinsts\n\ | ||
| 1594 : | --ss-number=N use N static superinsts (default max)\n\ | ||
| 1595 : | anton | 1.66 | -v, --version Print engine version and exit\n\ |
| 1596 : | anton | 1.1 | SIZE arguments consist of an integer followed by a unit. The unit can be\n\ |
| 1597 : | pazsan | 1.10 | `b' (byte), `e' (element; default), `k' (KB), `M' (MB), `G' (GB) or `T' (TB).\n", |
| 1598 : | argv[0]); | ||
| 1599 : | optind--; | ||
| 1600 : | return; | ||
| 1601 : | anton | 1.1 | } |
| 1602 : | } | ||
| 1603 : | pazsan | 1.10 | } |
| 1604 : | pazsan | 1.11 | #endif |
| 1605 : | pazsan | 1.10 | |
| 1606 : | #ifdef INCLUDE_IMAGE | ||
| 1607 : | extern Cell image[]; | ||
| 1608 : | extern const char reloc_bits[]; | ||
| 1609 : | #endif | ||
| 1610 : | pazsan | 1.67 | |
| 1611 : | pazsan | 1.10 | int main(int argc, char **argv, char **env) |
| 1612 : | { | ||
| 1613 : | pazsan | 1.30 | #ifdef HAS_OS |
| 1614 : | pazsan | 1.10 | char *path = getenv("GFORTHPATH") ? : DEFAULTPATH; |
| 1615 : | pazsan | 1.30 | #else |
| 1616 : | char *path = DEFAULTPATH; | ||
| 1617 : | #endif | ||
| 1618 : | pazsan | 1.13 | #ifndef INCLUDE_IMAGE |
| 1619 : | pazsan | 1.10 | char *imagename="gforth.fi"; |
| 1620 : | FILE *image_file; | ||
| 1621 : | Address image; | ||
| 1622 : | #endif | ||
| 1623 : | int retvalue; | ||
| 1624 : | |||
| 1625 : | anton | 1.56 | #if defined(i386) && defined(ALIGNMENT_CHECK) |
| 1626 : | pazsan | 1.10 | /* turn on alignment checks on the 486. |
| 1627 : | * on the 386 this should have no effect. */ | ||
| 1628 : | __asm__("pushfl; popl %eax; orl $0x40000, %eax; pushl %eax; popfl;"); | ||
| 1629 : | /* this is unusable with Linux' libc.4.6.27, because this library is | ||
| 1630 : | not alignment-clean; we would have to replace some library | ||
| 1631 : | functions (e.g., memcpy) to make it work. Also GCC doesn't try to keep | ||
| 1632 : | the stack FP-aligned. */ | ||
| 1633 : | #endif | ||
| 1634 : | |||
| 1635 : | /* buffering of the user output device */ | ||
| 1636 : | pazsan | 1.11 | #ifdef _IONBF |
| 1637 : | pazsan | 1.10 | if (isatty(fileno(stdout))) { |
| 1638 : | fflush(stdout); | ||
| 1639 : | setvbuf(stdout,NULL,_IONBF,0); | ||
| 1640 : | anton | 1.1 | } |
| 1641 : | pazsan | 1.11 | #endif |
| 1642 : | anton | 1.1 | |
| 1643 : | pazsan | 1.10 | progname = argv[0]; |
| 1644 : | |||
| 1645 : | pazsan | 1.11 | #ifdef HAS_OS |
| 1646 : | pazsan | 1.10 | gforth_args(argc, argv, &path, &imagename); |
| 1647 : | anton | 1.109 | #ifndef NO_DYNAMIC |
| 1648 : | if (no_dynamic && ss_cost == cost_codesize) { | ||
| 1649 : | ss_cost = cost_lsu; | ||
| 1650 : | anton | 1.110 | cost_sums[0] = cost_sums[1]; |
| 1651 : | anton | 1.109 | if (debug) |
| 1652 : | fprintf(stderr, "--no-dynamic conflicts with --ss-min-codesize, reverting to --ss-min-lsu\n"); | ||
| 1653 : | } | ||
| 1654 : | #endif /* !defined(NO_DYNAMIC) */ | ||
| 1655 : | #endif /* defined(HAS_OS) */ | ||
| 1656 : | pazsan | 1.10 | |
| 1657 : | #ifdef INCLUDE_IMAGE | ||
| 1658 : | set_stack_sizes((ImageHeader *)image); | ||
| 1659 : | pazsan | 1.22 | if(((ImageHeader *)image)->base != image) |
| 1660 : | relocate(image, reloc_bits, ((ImageHeader *)image)->image_size, | ||
| 1661 : | (Label*)engine(0, 0, 0, 0, 0)); | ||
| 1662 : | pazsan | 1.10 | alloc_stacks((ImageHeader *)image); |
| 1663 : | #else | ||
| 1664 : | image_file = open_image_file(imagename, path); | ||
| 1665 : | image = loader(image_file, imagename); | ||
| 1666 : | #endif | ||
| 1667 : | anton | 1.24 | gforth_header=(ImageHeader *)image; /* used in SIGSEGV handler */ |
| 1668 : | anton | 1.1 | |
| 1669 : | { | ||
| 1670 : | pazsan | 1.10 | char path2[strlen(path)+1]; |
| 1671 : | anton | 1.1 | char *p1, *p2; |
| 1672 : | Cell environ[]= { | ||
| 1673 : | (Cell)argc-(optind-1), | ||
| 1674 : | (Cell)(argv+(optind-1)), | ||
| 1675 : | pazsan | 1.10 | (Cell)strlen(path), |
| 1676 : | anton | 1.1 | (Cell)path2}; |
| 1677 : | argv[optind-1] = progname; | ||
| 1678 : | /* | ||
| 1679 : | for (i=0; i<environ[0]; i++) | ||
| 1680 : | printf("%s\n", ((char **)(environ[1]))[i]); | ||
| 1681 : | */ | ||
| 1682 : | /* make path OS-independent by replacing path separators with NUL */ | ||
| 1683 : | pazsan | 1.10 | for (p1=path, p2=path2; *p1!='\0'; p1++, p2++) |
| 1684 : | anton | 1.1 | if (*p1==PATHSEP) |
| 1685 : | *p2 = '\0'; | ||
| 1686 : | else | ||
| 1687 : | *p2 = *p1; | ||
| 1688 : | *p2='\0'; | ||
| 1689 : | pazsan | 1.10 | retvalue = go_forth(image, 4, environ); |
| 1690 : | anton | 1.102 | #ifdef SIGPIPE |
| 1691 : | bsd_signal(SIGPIPE, SIG_IGN); | ||
| 1692 : | #endif | ||
| 1693 : | anton | 1.42 | #ifdef VM_PROFILING |
| 1694 : | vm_print_profile(stderr); | ||
| 1695 : | #endif | ||
| 1696 : | anton | 1.1 | deprep_terminal(); |
| 1697 : | anton | 1.104 | } |
| 1698 : | anton | 1.110 | if (print_metrics) { |
| 1699 : | int i; | ||
| 1700 : | fprintf(stderr, "code size = %8ld\n", dyncodesize()); | ||
| 1701 : | for (i=0; i<sizeof(cost_sums)/sizeof(cost_sums[0]); i++) | ||
| 1702 : | fprintf(stderr, "metric %8s: %8ld\n", | ||
| 1703 : | cost_sums[i].metricname, cost_sums[i].sum); | ||
| 1704 : | anton | 1.1 | } |
| 1705 : | pazsan | 1.13 | return retvalue; |
| 1706 : | anton | 1.1 | } |
|
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