Fix typos 'resizze'
[ghc.git] / rts / Linker.c
1 /* -----------------------------------------------------------------------------
2 *
3 * (c) The GHC Team, 2000-2012
4 *
5 * RTS Object Linker
6 *
7 * ---------------------------------------------------------------------------*/
8
9 #if 0
10 #include "PosixSource.h"
11 #endif
12
13 /* Linux needs _GNU_SOURCE to get RTLD_DEFAULT from <dlfcn.h> and
14 MREMAP_MAYMOVE from <sys/mman.h>.
15 */
16 #if defined(__linux__) || defined(__GLIBC__)
17 #define _GNU_SOURCE 1
18 #endif
19
20 #include "Rts.h"
21 #include "HsFFI.h"
22
23 #include "sm/Storage.h"
24 #include "Stats.h"
25 #include "Hash.h"
26 #include "LinkerInternals.h"
27 #include "RtsUtils.h"
28 #include "Trace.h"
29 #include "StgPrimFloat.h" // for __int_encodeFloat etc.
30 #include "Proftimer.h"
31 #include "GetEnv.h"
32 #include "Stable.h"
33
34 #if !defined(mingw32_HOST_OS)
35 #include "posix/Signals.h"
36 #endif
37
38 // get protos for is*()
39 #include <ctype.h>
40
41 #ifdef HAVE_SYS_TYPES_H
42 #include <sys/types.h>
43 #endif
44
45 #include <inttypes.h>
46 #include <stdlib.h>
47 #include <string.h>
48 #include <stdio.h>
49 #include <assert.h>
50 #include <libgen.h>
51
52 #ifdef HAVE_SYS_STAT_H
53 #include <sys/stat.h>
54 #endif
55
56 #if defined(HAVE_DLFCN_H)
57 #include <dlfcn.h>
58 #endif
59
60 #if defined(cygwin32_HOST_OS)
61 #ifdef HAVE_DIRENT_H
62 #include <dirent.h>
63 #endif
64
65 #ifdef HAVE_SYS_TIME_H
66 #include <sys/time.h>
67 #endif
68 #include <regex.h>
69 #include <sys/fcntl.h>
70 #include <sys/termios.h>
71 #include <sys/utime.h>
72 #include <sys/utsname.h>
73 #include <sys/wait.h>
74 #endif
75
76 #if (defined(powerpc_HOST_ARCH) && defined(linux_HOST_OS)) \
77 || (!defined(powerpc_HOST_ARCH) && \
78 ( defined(linux_HOST_OS) || defined(freebsd_HOST_OS) || \
79 defined(dragonfly_HOST_OS) || defined(netbsd_HOST_OS ) || \
80 defined(openbsd_HOST_OS ) || defined(darwin_HOST_OS ) || \
81 defined(kfreebsdgnu_HOST_OS) || defined(gnu_HOST_OS)))
82 /* Don't use mmap on powerpc_HOST_ARCH as mmap doesn't support
83 * reallocating but we need to allocate jump islands just after each
84 * object images. Otherwise relative branches to jump islands can fail
85 * due to 24-bits displacement overflow.
86 */
87 #define USE_MMAP
88 #include <fcntl.h>
89 #include <sys/mman.h>
90
91 #ifdef HAVE_UNISTD_H
92 #include <unistd.h>
93 #endif
94
95 #endif
96
97
98 /* PowerPC has relative branch instructions with only 24 bit displacements
99 * and therefore needs jump islands contiguous with each object code module.
100 */
101 #if (defined(USE_MMAP) && defined(powerpc_HOST_ARCH) && defined(linux_HOST_OS))
102 #define USE_CONTIGUOUS_MMAP 1
103 #else
104 #define USE_CONTIGUOUS_MMAP 0
105 #endif
106
107 #if defined(linux_HOST_OS) || defined(solaris2_HOST_OS) || defined(freebsd_HOST_OS) || defined(kfreebsdgnu_HOST_OS) || defined(dragonfly_HOST_OS) || defined(netbsd_HOST_OS) || defined(openbsd_HOST_OS) || defined(gnu_HOST_OS)
108 # define OBJFORMAT_ELF
109 # include <regex.h> // regex is already used by dlopen() so this is OK
110 // to use here without requiring an additional lib
111 #elif defined(cygwin32_HOST_OS) || defined (mingw32_HOST_OS)
112 # define OBJFORMAT_PEi386
113 # include <windows.h>
114 # include <math.h>
115 #elif defined(darwin_HOST_OS)
116 # define OBJFORMAT_MACHO
117 # include <regex.h>
118 # include <mach/machine.h>
119 # include <mach-o/fat.h>
120 # include <mach-o/loader.h>
121 # include <mach-o/nlist.h>
122 # include <mach-o/reloc.h>
123 #if !defined(HAVE_DLFCN_H)
124 # include <mach-o/dyld.h>
125 #endif
126 #if defined(powerpc_HOST_ARCH)
127 # include <mach-o/ppc/reloc.h>
128 #endif
129 #if defined(x86_64_HOST_ARCH)
130 # include <mach-o/x86_64/reloc.h>
131 #endif
132 #endif
133
134 #if defined(x86_64_HOST_ARCH) && defined(darwin_HOST_OS)
135 #define ALWAYS_PIC
136 #endif
137
138 #if defined(dragonfly_HOST_OS)
139 #include <sys/tls.h>
140 #endif
141
142 typedef struct _RtsSymbolInfo {
143 void *value;
144 const ObjectCode *owner;
145 HsBool weak;
146 } RtsSymbolInfo;
147
148 /* Hash table mapping symbol names to RtsSymbolInfo */
149 static /*Str*/HashTable *symhash;
150
151 /* List of currently loaded objects */
152 ObjectCode *objects = NULL; /* initially empty */
153
154 /* List of objects that have been unloaded via unloadObj(), but are waiting
155 to be actually freed via checkUnload() */
156 ObjectCode *unloaded_objects = NULL; /* initially empty */
157
158 /* Type of the initializer */
159 typedef void (*init_t) (int argc, char **argv, char **env);
160
161 static HsInt isAlreadyLoaded( pathchar *path );
162 static HsInt loadOc( ObjectCode* oc );
163 static ObjectCode* mkOc( pathchar *path, char *image, int imageSize,
164 char *archiveMemberName
165 #ifndef USE_MMAP
166 #ifdef darwin_HOST_OS
167 , int misalignment
168 #endif
169 #endif
170 );
171
172 // Use wchar_t for pathnames on Windows (#5697)
173 #if defined(mingw32_HOST_OS)
174 #define pathcmp wcscmp
175 #define pathlen wcslen
176 #define pathopen _wfopen
177 #define pathstat _wstat
178 #define struct_stat struct _stat
179 #define open wopen
180 #define WSTR(s) L##s
181 #else
182 #define pathcmp strcmp
183 #define pathlen strlen
184 #define pathopen fopen
185 #define pathstat stat
186 #define struct_stat struct stat
187 #define WSTR(s) s
188 #endif
189
190 static pathchar* pathdup(pathchar *path)
191 {
192 pathchar *ret;
193 #if defined(mingw32_HOST_OS)
194 ret = wcsdup(path);
195 #else
196 /* sigh, strdup() isn't a POSIX function, so do it the long way */
197 ret = stgMallocBytes( strlen(path)+1, "loadObj" );
198 strcpy(ret, path);
199 #endif
200 return ret;
201 }
202
203
204 #if defined(OBJFORMAT_ELF)
205 static int ocVerifyImage_ELF ( ObjectCode* oc );
206 static int ocGetNames_ELF ( ObjectCode* oc );
207 static int ocResolve_ELF ( ObjectCode* oc );
208 static int ocRunInit_ELF ( ObjectCode* oc );
209 #if defined(powerpc_HOST_ARCH) || defined(x86_64_HOST_ARCH) || defined(arm_HOST_ARCH)
210 static int ocAllocateSymbolExtras_ELF ( ObjectCode* oc );
211 #endif
212 #elif defined(OBJFORMAT_PEi386)
213 static int ocVerifyImage_PEi386 ( ObjectCode* oc );
214 static int ocGetNames_PEi386 ( ObjectCode* oc );
215 static int ocResolve_PEi386 ( ObjectCode* oc );
216 static int ocRunInit_PEi386 ( ObjectCode* oc );
217 static void *lookupSymbolInDLLs ( unsigned char *lbl );
218 static void zapTrailingAtSign ( unsigned char *sym );
219 static char *allocateImageAndTrampolines (
220 #if defined(x86_64_HOST_ARCH)
221 FILE* f, pathchar* arch_name, char* member_name,
222 #endif
223 int size );
224 #if defined(x86_64_HOST_ARCH)
225 static int ocAllocateSymbolExtras_PEi386 ( ObjectCode* oc );
226 static size_t makeSymbolExtra_PEi386( ObjectCode* oc, size_t, char* symbol );
227 #define PEi386_IMAGE_OFFSET 4
228 #else
229 #define PEi386_IMAGE_OFFSET 0
230 #endif
231 #elif defined(OBJFORMAT_MACHO)
232 static int ocVerifyImage_MachO ( ObjectCode* oc );
233 static int ocGetNames_MachO ( ObjectCode* oc );
234 static int ocResolve_MachO ( ObjectCode* oc );
235 static int ocRunInit_MachO ( ObjectCode* oc );
236
237 #ifndef USE_MMAP
238 static int machoGetMisalignment( FILE * );
239 #endif
240 #if defined(powerpc_HOST_ARCH) || defined(x86_64_HOST_ARCH)
241 static int ocAllocateSymbolExtras_MachO ( ObjectCode* oc );
242 #endif
243 #ifdef powerpc_HOST_ARCH
244 static void machoInitSymbolsWithoutUnderscore( void );
245 #endif
246 #endif
247
248 static void freeProddableBlocks (ObjectCode *oc);
249
250 /* on x86_64 we have a problem with relocating symbol references in
251 * code that was compiled without -fPIC. By default, the small memory
252 * model is used, which assumes that symbol references can fit in a
253 * 32-bit slot. The system dynamic linker makes this work for
254 * references to shared libraries by either (a) allocating a jump
255 * table slot for code references, or (b) moving the symbol at load
256 * time (and copying its contents, if necessary) for data references.
257 *
258 * We unfortunately can't tell whether symbol references are to code
259 * or data. So for now we assume they are code (the vast majority
260 * are), and allocate jump-table slots. Unfortunately this will
261 * SILENTLY generate crashing code for data references. This hack is
262 * enabled by X86_64_ELF_NONPIC_HACK.
263 *
264 * One workaround is to use shared Haskell libraries. This is
265 * coming. Another workaround is to keep the static libraries but
266 * compile them with -fPIC, because that will generate PIC references
267 * to data which can be relocated. The PIC code is still too green to
268 * do this systematically, though.
269 *
270 * See bug #781
271 * See thread http://www.haskell.org/pipermail/cvs-ghc/2007-September/038458.html
272 *
273 * Naming Scheme for Symbol Macros
274 *
275 * SymI_*: symbol is internal to the RTS. It resides in an object
276 * file/library that is statically.
277 * SymE_*: symbol is external to the RTS library. It might be linked
278 * dynamically.
279 *
280 * Sym*_HasProto : the symbol prototype is imported in an include file
281 * or defined explicitly
282 * Sym*_NeedsProto: the symbol is undefined and we add a dummy
283 * default proto extern void sym(void);
284 */
285 #define X86_64_ELF_NONPIC_HACK 1
286
287 /* Link objects into the lower 2Gb on x86_64. GHC assumes the
288 * small memory model on this architecture (see gcc docs,
289 * -mcmodel=small).
290 *
291 * MAP_32BIT not available on OpenBSD/amd64
292 */
293 #if defined(x86_64_HOST_ARCH) && defined(MAP_32BIT)
294 #define TRY_MAP_32BIT MAP_32BIT
295 #else
296 #define TRY_MAP_32BIT 0
297 #endif
298
299 /*
300 * Due to the small memory model (see above), on x86_64 we have to map
301 * all our non-PIC object files into the low 2Gb of the address space
302 * (why 2Gb and not 4Gb? Because all addresses must be reachable
303 * using a 32-bit signed PC-relative offset). On Linux we can do this
304 * using the MAP_32BIT flag to mmap(), however on other OSs
305 * (e.g. *BSD, see #2063, and also on Linux inside Xen, see #2512), we
306 * can't do this. So on these systems, we have to pick a base address
307 * in the low 2Gb of the address space and try to allocate memory from
308 * there.
309 *
310 * We pick a default address based on the OS, but also make this
311 * configurable via an RTS flag (+RTS -xm)
312 */
313 #if !defined(ALWAYS_PIC) && defined(x86_64_HOST_ARCH)
314
315 #if defined(MAP_32BIT)
316 // Try to use MAP_32BIT
317 #define MMAP_32BIT_BASE_DEFAULT 0
318 #else
319 // A guess: 1Gb.
320 #define MMAP_32BIT_BASE_DEFAULT 0x40000000
321 #endif
322
323 static void *mmap_32bit_base = (void *)MMAP_32BIT_BASE_DEFAULT;
324 #endif
325
326 /* MAP_ANONYMOUS is MAP_ANON on some systems, e.g. OpenBSD */
327 #if !defined(MAP_ANONYMOUS) && defined(MAP_ANON)
328 #define MAP_ANONYMOUS MAP_ANON
329 #endif
330
331 /* -----------------------------------------------------------------------------
332 * Built-in symbols from the RTS
333 */
334
335 typedef struct _RtsSymbolVal {
336 char *lbl;
337 void *addr;
338 } RtsSymbolVal;
339
340 #define Maybe_Stable_Names SymI_HasProto(stg_mkWeakzh) \
341 SymI_HasProto(stg_mkWeakNoFinalizzerzh) \
342 SymI_HasProto(stg_addCFinalizzerToWeakzh) \
343 SymI_HasProto(stg_makeStableNamezh) \
344 SymI_HasProto(stg_finalizzeWeakzh)
345
346 #if !defined (mingw32_HOST_OS)
347 #define RTS_POSIX_ONLY_SYMBOLS \
348 SymI_HasProto(__hscore_get_saved_termios) \
349 SymI_HasProto(__hscore_set_saved_termios) \
350 SymI_HasProto(shutdownHaskellAndSignal) \
351 SymI_HasProto(signal_handlers) \
352 SymI_HasProto(stg_sig_install) \
353 SymI_HasProto(rtsTimerSignal) \
354 SymI_HasProto(atexit) \
355 SymI_NeedsProto(nocldstop)
356 #endif
357
358 #if defined (cygwin32_HOST_OS)
359 #define RTS_MINGW_ONLY_SYMBOLS /**/
360 /* Don't have the ability to read import libs / archives, so
361 * we have to stupidly list a lot of what libcygwin.a
362 * exports; sigh.
363 */
364 #define RTS_CYGWIN_ONLY_SYMBOLS \
365 SymI_HasProto(regfree) \
366 SymI_HasProto(regexec) \
367 SymI_HasProto(regerror) \
368 SymI_HasProto(regcomp) \
369 SymI_HasProto(__errno) \
370 SymI_HasProto(access) \
371 SymI_HasProto(chmod) \
372 SymI_HasProto(chdir) \
373 SymI_HasProto(close) \
374 SymI_HasProto(creat) \
375 SymI_HasProto(dup) \
376 SymI_HasProto(dup2) \
377 SymI_HasProto(fstat) \
378 SymI_HasProto(fcntl) \
379 SymI_HasProto(getcwd) \
380 SymI_HasProto(getenv) \
381 SymI_HasProto(lseek) \
382 SymI_HasProto(open) \
383 SymI_HasProto(fpathconf) \
384 SymI_HasProto(pathconf) \
385 SymI_HasProto(stat) \
386 SymI_HasProto(pow) \
387 SymI_HasProto(tanh) \
388 SymI_HasProto(cosh) \
389 SymI_HasProto(sinh) \
390 SymI_HasProto(atan) \
391 SymI_HasProto(acos) \
392 SymI_HasProto(asin) \
393 SymI_HasProto(tan) \
394 SymI_HasProto(cos) \
395 SymI_HasProto(sin) \
396 SymI_HasProto(exp) \
397 SymI_HasProto(log) \
398 SymI_HasProto(sqrt) \
399 SymI_HasProto(localtime_r) \
400 SymI_HasProto(gmtime_r) \
401 SymI_HasProto(mktime) \
402 SymI_NeedsProto(_imp___tzname) \
403 SymI_HasProto(gettimeofday) \
404 SymI_HasProto(timezone) \
405 SymI_HasProto(tcgetattr) \
406 SymI_HasProto(tcsetattr) \
407 SymI_HasProto(memcpy) \
408 SymI_HasProto(memmove) \
409 SymI_HasProto(realloc) \
410 SymI_HasProto(malloc) \
411 SymI_HasProto(free) \
412 SymI_HasProto(fork) \
413 SymI_HasProto(lstat) \
414 SymI_HasProto(isatty) \
415 SymI_HasProto(mkdir) \
416 SymI_HasProto(opendir) \
417 SymI_HasProto(readdir) \
418 SymI_HasProto(rewinddir) \
419 SymI_HasProto(closedir) \
420 SymI_HasProto(link) \
421 SymI_HasProto(mkfifo) \
422 SymI_HasProto(pipe) \
423 SymI_HasProto(read) \
424 SymI_HasProto(rename) \
425 SymI_HasProto(rmdir) \
426 SymI_HasProto(select) \
427 SymI_HasProto(system) \
428 SymI_HasProto(write) \
429 SymI_HasProto(strcmp) \
430 SymI_HasProto(strcpy) \
431 SymI_HasProto(strncpy) \
432 SymI_HasProto(strerror) \
433 SymI_HasProto(sigaddset) \
434 SymI_HasProto(sigemptyset) \
435 SymI_HasProto(sigprocmask) \
436 SymI_HasProto(umask) \
437 SymI_HasProto(uname) \
438 SymI_HasProto(unlink) \
439 SymI_HasProto(utime) \
440 SymI_HasProto(waitpid)
441
442 #elif defined(mingw32_HOST_OS)
443 #define RTS_POSIX_ONLY_SYMBOLS /**/
444 #define RTS_CYGWIN_ONLY_SYMBOLS /**/
445
446 #if HAVE_GETTIMEOFDAY
447 #define RTS_MINGW_GETTIMEOFDAY_SYM SymI_NeedsProto(gettimeofday)
448 #else
449 #define RTS_MINGW_GETTIMEOFDAY_SYM /**/
450 #endif
451
452 #if HAVE___MINGW_VFPRINTF
453 #define RTS___MINGW_VFPRINTF_SYM SymI_HasProto(__mingw_vfprintf)
454 #else
455 #define RTS___MINGW_VFPRINTF_SYM /**/
456 #endif
457
458 #if defined(i386_HOST_ARCH)
459 #define RTS_WIN32_ONLY(X) X
460 #else
461 #define RTS_WIN32_ONLY(X) /**/
462 #endif
463
464 #if defined(x86_64_HOST_ARCH)
465 #define RTS_WIN64_ONLY(X) X
466 #else
467 #define RTS_WIN64_ONLY(X) /**/
468 #endif
469
470 /* These are statically linked from the mingw libraries into the ghc
471 executable, so we have to employ this hack. */
472 #define RTS_MINGW_ONLY_SYMBOLS \
473 SymI_HasProto(stg_asyncReadzh) \
474 SymI_HasProto(stg_asyncWritezh) \
475 SymI_HasProto(stg_asyncDoProczh) \
476 SymI_HasProto(getWin32ProgArgv) \
477 SymI_HasProto(setWin32ProgArgv) \
478 SymI_HasProto(memset) \
479 SymI_HasProto(inet_ntoa) \
480 SymI_HasProto(inet_addr) \
481 SymI_HasProto(htonl) \
482 SymI_HasProto(recvfrom) \
483 SymI_HasProto(listen) \
484 SymI_HasProto(bind) \
485 SymI_HasProto(shutdown) \
486 SymI_HasProto(connect) \
487 SymI_HasProto(htons) \
488 SymI_HasProto(ntohs) \
489 SymI_HasProto(getservbyname) \
490 SymI_HasProto(getservbyport) \
491 SymI_HasProto(getprotobynumber) \
492 SymI_HasProto(getprotobyname) \
493 SymI_HasProto(gethostbyname) \
494 SymI_HasProto(gethostbyaddr) \
495 SymI_HasProto(gethostname) \
496 SymI_HasProto(strcpy) \
497 SymI_HasProto(strncpy) \
498 SymI_HasProto(abort) \
499 RTS_WIN32_ONLY(SymI_NeedsProto(_alloca)) \
500 SymI_HasProto(isxdigit) \
501 SymI_HasProto(isupper) \
502 SymI_HasProto(ispunct) \
503 SymI_HasProto(islower) \
504 SymI_HasProto(isspace) \
505 SymI_HasProto(isprint) \
506 SymI_HasProto(isdigit) \
507 SymI_HasProto(iscntrl) \
508 SymI_HasProto(isalpha) \
509 SymI_HasProto(isalnum) \
510 SymI_HasProto(isascii) \
511 RTS___MINGW_VFPRINTF_SYM \
512 SymI_HasProto(strcmp) \
513 SymI_HasProto(memmove) \
514 SymI_HasProto(realloc) \
515 SymI_HasProto(malloc) \
516 SymI_HasProto(pow) \
517 SymI_HasProto(tanh) \
518 SymI_HasProto(cosh) \
519 SymI_HasProto(sinh) \
520 SymI_HasProto(atan) \
521 SymI_HasProto(acos) \
522 SymI_HasProto(asin) \
523 SymI_HasProto(tan) \
524 SymI_HasProto(cos) \
525 SymI_HasProto(sin) \
526 SymI_HasProto(exp) \
527 SymI_HasProto(log) \
528 SymI_HasProto(sqrt) \
529 SymI_HasProto(powf) \
530 SymI_HasProto(tanhf) \
531 SymI_HasProto(coshf) \
532 SymI_HasProto(sinhf) \
533 SymI_HasProto(atanf) \
534 SymI_HasProto(acosf) \
535 SymI_HasProto(asinf) \
536 SymI_HasProto(tanf) \
537 SymI_HasProto(cosf) \
538 SymI_HasProto(sinf) \
539 SymI_HasProto(expf) \
540 SymI_HasProto(logf) \
541 SymI_HasProto(sqrtf) \
542 SymI_HasProto(erf) \
543 SymI_HasProto(erfc) \
544 SymI_HasProto(erff) \
545 SymI_HasProto(erfcf) \
546 SymI_HasProto(memcpy) \
547 SymI_HasProto(rts_InstallConsoleEvent) \
548 SymI_HasProto(rts_ConsoleHandlerDone) \
549 SymI_NeedsProto(mktime) \
550 RTS_WIN32_ONLY(SymI_NeedsProto(_imp___timezone)) \
551 RTS_WIN32_ONLY(SymI_NeedsProto(_imp___tzname)) \
552 RTS_WIN32_ONLY(SymI_NeedsProto(_imp__tzname)) \
553 RTS_WIN32_ONLY(SymI_NeedsProto(_imp___iob)) \
554 RTS_WIN32_ONLY(SymI_NeedsProto(_imp___osver)) \
555 SymI_NeedsProto(localtime) \
556 SymI_NeedsProto(gmtime) \
557 SymI_NeedsProto(opendir) \
558 SymI_NeedsProto(readdir) \
559 SymI_NeedsProto(rewinddir) \
560 RTS_WIN32_ONLY(SymI_NeedsProto(_imp____mb_cur_max)) \
561 RTS_WIN32_ONLY(SymI_NeedsProto(_imp___pctype)) \
562 RTS_WIN32_ONLY(SymI_NeedsProto(__chkstk)) \
563 RTS_WIN64_ONLY(SymI_NeedsProto(__imp___iob_func)) \
564 RTS_WIN64_ONLY(SymI_NeedsProto(___chkstk_ms)) \
565 RTS_WIN64_ONLY(SymI_NeedsProto(__imp_localeconv)) \
566 RTS_WIN64_ONLY(SymI_NeedsProto(__imp_islower)) \
567 RTS_WIN64_ONLY(SymI_NeedsProto(__imp_isspace)) \
568 RTS_WIN64_ONLY(SymI_NeedsProto(__imp_isxdigit)) \
569 RTS_WIN64_ONLY(SymI_HasProto(close)) \
570 RTS_WIN64_ONLY(SymI_HasProto(read)) \
571 RTS_WIN64_ONLY(SymI_HasProto(dup)) \
572 RTS_WIN64_ONLY(SymI_HasProto(dup2)) \
573 RTS_WIN64_ONLY(SymI_HasProto(write)) \
574 SymI_NeedsProto(getpid) \
575 RTS_WIN64_ONLY(SymI_HasProto(access)) \
576 SymI_HasProto(chmod) \
577 RTS_WIN64_ONLY(SymI_HasProto(creat)) \
578 RTS_WIN64_ONLY(SymI_HasProto(umask)) \
579 SymI_HasProto(unlink) \
580 RTS_WIN64_ONLY(SymI_NeedsProto(__imp__errno)) \
581 RTS_WIN64_ONLY(SymI_NeedsProto(ftruncate64)) \
582 RTS_WIN64_ONLY(SymI_HasProto(setmode)) \
583 RTS_WIN64_ONLY(SymI_NeedsProto(__imp__wstat64)) \
584 RTS_WIN64_ONLY(SymI_NeedsProto(__imp__fstat64)) \
585 RTS_WIN64_ONLY(SymI_NeedsProto(__imp__wsopen)) \
586 RTS_WIN64_ONLY(SymI_HasProto(__imp__environ)) \
587 RTS_WIN64_ONLY(SymI_NeedsProto(__imp_GetFileAttributesA)) \
588 RTS_WIN64_ONLY(SymI_NeedsProto(__imp_GetFileInformationByHandle)) \
589 RTS_WIN64_ONLY(SymI_NeedsProto(__imp_GetFileType)) \
590 RTS_WIN64_ONLY(SymI_NeedsProto(__imp_GetLastError)) \
591 RTS_WIN64_ONLY(SymI_NeedsProto(__imp_QueryPerformanceFrequency)) \
592 RTS_WIN64_ONLY(SymI_NeedsProto(__imp_QueryPerformanceCounter)) \
593 RTS_WIN64_ONLY(SymI_NeedsProto(__imp_GetTickCount)) \
594 RTS_WIN64_ONLY(SymI_NeedsProto(__imp_WaitForSingleObject)) \
595 RTS_WIN64_ONLY(SymI_NeedsProto(__imp_PeekConsoleInputA)) \
596 RTS_WIN64_ONLY(SymI_NeedsProto(__imp_ReadConsoleInputA)) \
597 RTS_WIN64_ONLY(SymI_NeedsProto(__imp_PeekNamedPipe)) \
598 RTS_WIN64_ONLY(SymI_NeedsProto(__imp__isatty)) \
599 RTS_WIN64_ONLY(SymI_NeedsProto(__imp_select)) \
600 RTS_WIN64_ONLY(SymI_HasProto(isatty)) \
601 RTS_WIN64_ONLY(SymI_NeedsProto(__imp__get_osfhandle)) \
602 RTS_WIN64_ONLY(SymI_NeedsProto(__imp_GetConsoleMode)) \
603 RTS_WIN64_ONLY(SymI_NeedsProto(__imp_SetConsoleMode)) \
604 RTS_WIN64_ONLY(SymI_NeedsProto(__imp_FlushConsoleInputBuffer)) \
605 RTS_WIN64_ONLY(SymI_HasProto(free)) \
606 RTS_WIN64_ONLY(SymI_NeedsProto(raise)) \
607 RTS_WIN64_ONLY(SymI_NeedsProto(_getpid)) \
608 RTS_WIN64_ONLY(SymI_HasProto(getc)) \
609 RTS_WIN64_ONLY(SymI_HasProto(ungetc)) \
610 RTS_WIN64_ONLY(SymI_HasProto(puts)) \
611 RTS_WIN64_ONLY(SymI_HasProto(putc)) \
612 RTS_WIN64_ONLY(SymI_HasProto(putchar)) \
613 RTS_WIN64_ONLY(SymI_HasProto(fputc)) \
614 RTS_WIN64_ONLY(SymI_HasProto(fread)) \
615 RTS_WIN64_ONLY(SymI_HasProto(fwrite)) \
616 RTS_WIN64_ONLY(SymI_HasProto(ferror)) \
617 RTS_WIN64_ONLY(SymI_HasProto(printf)) \
618 RTS_WIN64_ONLY(SymI_HasProto(fprintf)) \
619 RTS_WIN64_ONLY(SymI_HasProto(sprintf)) \
620 RTS_WIN64_ONLY(SymI_HasProto(vsprintf)) \
621 RTS_WIN64_ONLY(SymI_HasProto(sscanf)) \
622 RTS_WIN64_ONLY(SymI_HasProto(ldexp)) \
623 RTS_WIN64_ONLY(SymI_HasProto(strlen)) \
624 RTS_WIN64_ONLY(SymI_HasProto(strnlen)) \
625 RTS_WIN64_ONLY(SymI_HasProto(strchr)) \
626 RTS_WIN64_ONLY(SymI_HasProto(strtol)) \
627 RTS_WIN64_ONLY(SymI_HasProto(strerror)) \
628 RTS_WIN64_ONLY(SymI_HasProto(memchr)) \
629 RTS_WIN64_ONLY(SymI_HasProto(memcmp)) \
630 RTS_WIN64_ONLY(SymI_HasProto(wcscpy)) \
631 RTS_WIN64_ONLY(SymI_HasProto(wcslen)) \
632 RTS_WIN64_ONLY(SymI_HasProto(_lseeki64)) \
633 RTS_WIN64_ONLY(SymI_HasProto(_wchmod)) \
634 RTS_WIN64_ONLY(SymI_HasProto(closesocket)) \
635 RTS_WIN64_ONLY(SymI_HasProto(send)) \
636 RTS_WIN64_ONLY(SymI_HasProto(recv)) \
637 RTS_WIN64_ONLY(SymI_HasProto(bsearch)) \
638 RTS_WIN64_ONLY(SymI_HasProto(CommandLineToArgvW)) \
639 RTS_WIN64_ONLY(SymI_HasProto(CreateBitmap)) \
640 RTS_WIN64_ONLY(SymI_HasProto(CreateBitmapIndirect)) \
641 RTS_WIN64_ONLY(SymI_HasProto(CreateCompatibleBitmap)) \
642 RTS_WIN64_ONLY(SymI_HasProto(CreateDIBPatternBrushPt)) \
643 RTS_WIN64_ONLY(SymI_HasProto(CreateDIBitmap)) \
644 RTS_WIN64_ONLY(SymI_HasProto(SetBitmapDimensionEx)) \
645 RTS_WIN64_ONLY(SymI_HasProto(GetBitmapDimensionEx)) \
646 RTS_WIN64_ONLY(SymI_HasProto(GetStockObject)) \
647 RTS_WIN64_ONLY(SymI_HasProto(GetObjectW)) \
648 RTS_WIN64_ONLY(SymI_HasProto(DeleteObject)) \
649 RTS_WIN64_ONLY(SymI_HasProto(SetDIBits)) \
650 RTS_WIN64_ONLY(SymI_HasProto(GetDIBits)) \
651 RTS_WIN64_ONLY(SymI_HasProto(CreateSolidBrush)) \
652 RTS_WIN64_ONLY(SymI_HasProto(CreateHatchBrush)) \
653 RTS_WIN64_ONLY(SymI_HasProto(CreatePatternBrush)) \
654 RTS_WIN64_ONLY(SymI_HasProto(CreateFontW)) \
655 RTS_WIN64_ONLY(SymI_HasProto(AngleArc)) \
656 RTS_WIN64_ONLY(SymI_HasProto(Arc)) \
657 RTS_WIN64_ONLY(SymI_HasProto(ArcTo)) \
658 RTS_WIN64_ONLY(SymI_HasProto(BeginPath)) \
659 RTS_WIN64_ONLY(SymI_HasProto(BitBlt)) \
660 RTS_WIN64_ONLY(SymI_HasProto(CancelDC)) \
661 RTS_WIN64_ONLY(SymI_HasProto(Chord)) \
662 RTS_WIN64_ONLY(SymI_HasProto(CloseFigure)) \
663 RTS_WIN64_ONLY(SymI_HasProto(CombineRgn)) \
664 RTS_WIN64_ONLY(SymI_HasProto(CreateCompatibleDC)) \
665 RTS_WIN64_ONLY(SymI_HasProto(CreateEllipticRgn)) \
666 RTS_WIN64_ONLY(SymI_HasProto(CreateEllipticRgnIndirect)) \
667 RTS_WIN64_ONLY(SymI_HasProto(CreatePen)) \
668 RTS_WIN64_ONLY(SymI_HasProto(CreatePolygonRgn)) \
669 RTS_WIN64_ONLY(SymI_HasProto(CreateRectRgn)) \
670 RTS_WIN64_ONLY(SymI_HasProto(CreateRectRgnIndirect)) \
671 RTS_WIN64_ONLY(SymI_HasProto(CreateRoundRectRgn)) \
672 RTS_WIN64_ONLY(SymI_HasProto(DeleteDC)) \
673 RTS_WIN64_ONLY(SymI_HasProto(Ellipse)) \
674 RTS_WIN64_ONLY(SymI_HasProto(EndPath)) \
675 RTS_WIN64_ONLY(SymI_HasProto(EqualRgn)) \
676 RTS_WIN64_ONLY(SymI_HasProto(ExtSelectClipRgn)) \
677 RTS_WIN64_ONLY(SymI_HasProto(FillPath)) \
678 RTS_WIN64_ONLY(SymI_HasProto(FillRgn)) \
679 RTS_WIN64_ONLY(SymI_HasProto(FlattenPath)) \
680 RTS_WIN64_ONLY(SymI_HasProto(FrameRgn)) \
681 RTS_WIN64_ONLY(SymI_HasProto(GetArcDirection)) \
682 RTS_WIN64_ONLY(SymI_HasProto(GetBkColor)) \
683 RTS_WIN64_ONLY(SymI_HasProto(GetBkMode)) \
684 RTS_WIN64_ONLY(SymI_HasProto(GetBrushOrgEx)) \
685 RTS_WIN64_ONLY(SymI_HasProto(GetCurrentObject)) \
686 RTS_WIN64_ONLY(SymI_HasProto(GetDCOrgEx)) \
687 RTS_WIN64_ONLY(SymI_HasProto(GetGraphicsMode)) \
688 RTS_WIN64_ONLY(SymI_HasProto(GetMiterLimit)) \
689 RTS_WIN64_ONLY(SymI_HasProto(GetPolyFillMode)) \
690 RTS_WIN64_ONLY(SymI_HasProto(GetRgnBox)) \
691 RTS_WIN64_ONLY(SymI_HasProto(GetStretchBltMode)) \
692 RTS_WIN64_ONLY(SymI_HasProto(GetTextAlign)) \
693 RTS_WIN64_ONLY(SymI_HasProto(GetTextCharacterExtra)) \
694 RTS_WIN64_ONLY(SymI_HasProto(GetTextColor)) \
695 RTS_WIN64_ONLY(SymI_HasProto(GetTextExtentPoint32W)) \
696 RTS_WIN64_ONLY(SymI_HasProto(InvertRgn)) \
697 RTS_WIN64_ONLY(SymI_HasProto(LineTo)) \
698 RTS_WIN64_ONLY(SymI_HasProto(MaskBlt)) \
699 RTS_WIN64_ONLY(SymI_HasProto(MoveToEx)) \
700 RTS_WIN64_ONLY(SymI_HasProto(OffsetRgn)) \
701 RTS_WIN64_ONLY(SymI_HasProto(PaintRgn)) \
702 RTS_WIN64_ONLY(SymI_HasProto(PathToRegion)) \
703 RTS_WIN64_ONLY(SymI_HasProto(Pie)) \
704 RTS_WIN64_ONLY(SymI_HasProto(PlgBlt)) \
705 RTS_WIN64_ONLY(SymI_HasProto(PolyBezier)) \
706 RTS_WIN64_ONLY(SymI_HasProto(PolyBezierTo)) \
707 RTS_WIN64_ONLY(SymI_HasProto(Polygon)) \
708 RTS_WIN64_ONLY(SymI_HasProto(Polyline)) \
709 RTS_WIN64_ONLY(SymI_HasProto(PolylineTo)) \
710 RTS_WIN64_ONLY(SymI_HasProto(PtInRegion)) \
711 RTS_WIN64_ONLY(SymI_HasProto(Rectangle)) \
712 RTS_WIN64_ONLY(SymI_HasProto(RectInRegion)) \
713 RTS_WIN64_ONLY(SymI_HasProto(RestoreDC)) \
714 RTS_WIN64_ONLY(SymI_HasProto(RoundRect)) \
715 RTS_WIN64_ONLY(SymI_HasProto(SaveDC)) \
716 RTS_WIN64_ONLY(SymI_HasProto(SelectClipPath)) \
717 RTS_WIN64_ONLY(SymI_HasProto(SelectClipRgn)) \
718 RTS_WIN64_ONLY(SymI_HasProto(SelectObject)) \
719 RTS_WIN64_ONLY(SymI_HasProto(SelectPalette)) \
720 RTS_WIN64_ONLY(SymI_HasProto(SetArcDirection)) \
721 RTS_WIN64_ONLY(SymI_HasProto(SetBkColor)) \
722 RTS_WIN64_ONLY(SymI_HasProto(SetBkMode)) \
723 RTS_WIN64_ONLY(SymI_HasProto(SetBrushOrgEx)) \
724 RTS_WIN64_ONLY(SymI_HasProto(SetGraphicsMode)) \
725 RTS_WIN64_ONLY(SymI_HasProto(SetMiterLimit)) \
726 RTS_WIN64_ONLY(SymI_HasProto(SetPolyFillMode)) \
727 RTS_WIN64_ONLY(SymI_HasProto(SetStretchBltMode)) \
728 RTS_WIN64_ONLY(SymI_HasProto(SetTextAlign)) \
729 RTS_WIN64_ONLY(SymI_HasProto(SetTextCharacterExtra)) \
730 RTS_WIN64_ONLY(SymI_HasProto(SetTextColor)) \
731 RTS_WIN64_ONLY(SymI_HasProto(StretchBlt)) \
732 RTS_WIN64_ONLY(SymI_HasProto(StrokeAndFillPath)) \
733 RTS_WIN64_ONLY(SymI_HasProto(StrokePath)) \
734 RTS_WIN64_ONLY(SymI_HasProto(TextOutW)) \
735 RTS_WIN64_ONLY(SymI_HasProto(timeGetTime)) \
736 RTS_WIN64_ONLY(SymI_HasProto(WidenPath)) \
737 RTS_WIN64_ONLY(SymI_HasProto(GetFileSecurityW)) \
738 RTS_WIN64_ONLY(SymI_HasProto(RegCloseKey)) \
739 RTS_WIN64_ONLY(SymI_HasProto(RegConnectRegistryW)) \
740 RTS_WIN64_ONLY(SymI_HasProto(RegCreateKeyExW)) \
741 RTS_WIN64_ONLY(SymI_HasProto(RegCreateKeyW)) \
742 RTS_WIN64_ONLY(SymI_HasProto(RegDeleteKeyW)) \
743 RTS_WIN64_ONLY(SymI_HasProto(RegDeleteValueW)) \
744 RTS_WIN64_ONLY(SymI_HasProto(RegEnumKeyW)) \
745 RTS_WIN64_ONLY(SymI_HasProto(RegEnumValueW)) \
746 RTS_WIN64_ONLY(SymI_HasProto(RegFlushKey)) \
747 RTS_WIN64_ONLY(SymI_HasProto(RegLoadKeyW)) \
748 RTS_WIN64_ONLY(SymI_HasProto(RegNotifyChangeKeyValue)) \
749 RTS_WIN64_ONLY(SymI_HasProto(RegOpenKeyExW)) \
750 RTS_WIN64_ONLY(SymI_HasProto(RegOpenKeyW)) \
751 RTS_WIN64_ONLY(SymI_HasProto(RegQueryInfoKeyW)) \
752 RTS_WIN64_ONLY(SymI_HasProto(RegQueryValueExW)) \
753 RTS_WIN64_ONLY(SymI_HasProto(RegQueryValueW)) \
754 RTS_WIN64_ONLY(SymI_HasProto(RegReplaceKeyW)) \
755 RTS_WIN64_ONLY(SymI_HasProto(RegRestoreKeyW)) \
756 RTS_WIN64_ONLY(SymI_HasProto(RegSaveKeyW)) \
757 RTS_WIN64_ONLY(SymI_HasProto(RegSetValueExW)) \
758 RTS_WIN64_ONLY(SymI_HasProto(RegSetValueW)) \
759 RTS_WIN64_ONLY(SymI_HasProto(RegUnLoadKeyW)) \
760 RTS_WIN64_ONLY(SymI_NeedsProto(SHGetFolderPathW)) \
761 RTS_WIN64_ONLY(SymI_NeedsProto(__imp_SetWindowLongPtrW)) \
762 RTS_WIN64_ONLY(SymI_NeedsProto(__imp_GetWindowLongPtrW)) \
763 RTS_WIN64_ONLY(SymI_NeedsProto(__imp_MenuItemFromPoint)) \
764 RTS_WIN64_ONLY(SymI_NeedsProto(__imp_ChildWindowFromPoint)) \
765 RTS_WIN64_ONLY(SymI_NeedsProto(__imp_ChildWindowFromPointEx)) \
766 RTS_WIN64_ONLY(SymI_NeedsProto(__imp_DeleteObject)) \
767 RTS_WIN64_ONLY(SymI_NeedsProto(__imp_UnmapViewOfFile)) \
768 RTS_WIN64_ONLY(SymI_NeedsProto(__imp_CloseHandle)) \
769 RTS_WIN64_ONLY(SymI_NeedsProto(__imp_FreeLibrary)) \
770 RTS_WIN64_ONLY(SymI_NeedsProto(__imp_GetMessageW)) \
771 RTS_WIN64_ONLY(SymI_NeedsProto(__imp_TranslateMessage)) \
772 RTS_WIN64_ONLY(SymI_NeedsProto(__imp_DispatchMessageW)) \
773 RTS_WIN64_ONLY(SymI_NeedsProto(__imp_DefWindowProcW)) \
774 RTS_WIN64_ONLY(SymI_NeedsProto(__imp_GetDIBits)) \
775 RTS_WIN64_ONLY(SymI_NeedsProto(__imp_GlobalAlloc)) \
776 RTS_WIN64_ONLY(SymI_NeedsProto(__imp_GlobalFree)) \
777 RTS_WIN64_ONLY(SymI_NeedsProto(__imp_CreateFileW)) \
778 RTS_WIN64_ONLY(SymI_NeedsProto(__imp_WriteFile)) \
779 RTS_WIN64_ONLY(SymI_NeedsProto(__imp_CreateCompatibleBitmap)) \
780 RTS_WIN64_ONLY(SymI_NeedsProto(__imp_SelectObject)) \
781 RTS_WIN64_ONLY(SymI_NeedsProto(__imp_Polygon)) \
782 RTS_WIN64_ONLY(SymI_NeedsProto(__imp_FormatMessageW)) \
783 RTS_WIN64_ONLY(SymI_NeedsProto(__imp__localtime64)) \
784 RTS_WIN64_ONLY(SymI_NeedsProto(__imp__tzname)) \
785 RTS_WIN64_ONLY(SymI_NeedsProto(__imp__timezone)) \
786 RTS_WIN64_ONLY(SymI_NeedsProto(__imp_CreatePipe)) \
787 RTS_WIN64_ONLY(SymI_NeedsProto(__imp_SetHandleInformation)) \
788 RTS_WIN64_ONLY(SymI_NeedsProto(__imp_GetStdHandle)) \
789 RTS_WIN64_ONLY(SymI_NeedsProto(__imp_GetCurrentProcess)) \
790 RTS_WIN64_ONLY(SymI_NeedsProto(__imp_DuplicateHandle)) \
791 RTS_WIN64_ONLY(SymI_NeedsProto(__imp_CreateProcessW)) \
792 RTS_WIN64_ONLY(SymI_NeedsProto(__imp_TerminateProcess)) \
793 RTS_WIN64_ONLY(SymI_NeedsProto(__imp__open_osfhandle)) \
794 RTS_WIN64_ONLY(SymI_NeedsProto(__imp_GetExitCodeProcess)) \
795 RTS_MINGW_GETTIMEOFDAY_SYM \
796 SymI_NeedsProto(closedir)
797
798 #else
799 #define RTS_MINGW_ONLY_SYMBOLS /**/
800 #define RTS_CYGWIN_ONLY_SYMBOLS /**/
801 #endif
802
803
804 #if defined(darwin_HOST_OS) && HAVE_PRINTF_LDBLSTUB
805 #define RTS_DARWIN_ONLY_SYMBOLS \
806 SymI_NeedsProto(asprintf$LDBLStub) \
807 SymI_NeedsProto(err$LDBLStub) \
808 SymI_NeedsProto(errc$LDBLStub) \
809 SymI_NeedsProto(errx$LDBLStub) \
810 SymI_NeedsProto(fprintf$LDBLStub) \
811 SymI_NeedsProto(fscanf$LDBLStub) \
812 SymI_NeedsProto(fwprintf$LDBLStub) \
813 SymI_NeedsProto(fwscanf$LDBLStub) \
814 SymI_NeedsProto(printf$LDBLStub) \
815 SymI_NeedsProto(scanf$LDBLStub) \
816 SymI_NeedsProto(snprintf$LDBLStub) \
817 SymI_NeedsProto(sprintf$LDBLStub) \
818 SymI_NeedsProto(sscanf$LDBLStub) \
819 SymI_NeedsProto(strtold$LDBLStub) \
820 SymI_NeedsProto(swprintf$LDBLStub) \
821 SymI_NeedsProto(swscanf$LDBLStub) \
822 SymI_NeedsProto(syslog$LDBLStub) \
823 SymI_NeedsProto(vasprintf$LDBLStub) \
824 SymI_NeedsProto(verr$LDBLStub) \
825 SymI_NeedsProto(verrc$LDBLStub) \
826 SymI_NeedsProto(verrx$LDBLStub) \
827 SymI_NeedsProto(vfprintf$LDBLStub) \
828 SymI_NeedsProto(vfscanf$LDBLStub) \
829 SymI_NeedsProto(vfwprintf$LDBLStub) \
830 SymI_NeedsProto(vfwscanf$LDBLStub) \
831 SymI_NeedsProto(vprintf$LDBLStub) \
832 SymI_NeedsProto(vscanf$LDBLStub) \
833 SymI_NeedsProto(vsnprintf$LDBLStub) \
834 SymI_NeedsProto(vsprintf$LDBLStub) \
835 SymI_NeedsProto(vsscanf$LDBLStub) \
836 SymI_NeedsProto(vswprintf$LDBLStub) \
837 SymI_NeedsProto(vswscanf$LDBLStub) \
838 SymI_NeedsProto(vsyslog$LDBLStub) \
839 SymI_NeedsProto(vwarn$LDBLStub) \
840 SymI_NeedsProto(vwarnc$LDBLStub) \
841 SymI_NeedsProto(vwarnx$LDBLStub) \
842 SymI_NeedsProto(vwprintf$LDBLStub) \
843 SymI_NeedsProto(vwscanf$LDBLStub) \
844 SymI_NeedsProto(warn$LDBLStub) \
845 SymI_NeedsProto(warnc$LDBLStub) \
846 SymI_NeedsProto(warnx$LDBLStub) \
847 SymI_NeedsProto(wcstold$LDBLStub) \
848 SymI_NeedsProto(wprintf$LDBLStub) \
849 SymI_NeedsProto(wscanf$LDBLStub)
850 #else
851 #define RTS_DARWIN_ONLY_SYMBOLS
852 #endif
853
854 #ifndef SMP
855 # define MAIN_CAP_SYM SymI_HasProto(MainCapability)
856 #else
857 # define MAIN_CAP_SYM
858 #endif
859
860 #if !defined(mingw32_HOST_OS)
861 #define RTS_USER_SIGNALS_SYMBOLS \
862 SymI_HasProto(setIOManagerControlFd) \
863 SymI_HasProto(setIOManagerWakeupFd) \
864 SymI_HasProto(ioManagerWakeup) \
865 SymI_HasProto(blockUserSignals) \
866 SymI_HasProto(unblockUserSignals)
867 #else
868 #define RTS_USER_SIGNALS_SYMBOLS \
869 SymI_HasProto(ioManagerWakeup) \
870 SymI_HasProto(sendIOManagerEvent) \
871 SymI_HasProto(readIOManagerEvent) \
872 SymI_HasProto(getIOManagerEvent) \
873 SymI_HasProto(console_handler)
874 #endif
875
876 #define RTS_LIBFFI_SYMBOLS \
877 SymE_NeedsProto(ffi_prep_cif) \
878 SymE_NeedsProto(ffi_call) \
879 SymE_NeedsProto(ffi_type_void) \
880 SymE_NeedsProto(ffi_type_float) \
881 SymE_NeedsProto(ffi_type_double) \
882 SymE_NeedsProto(ffi_type_sint64) \
883 SymE_NeedsProto(ffi_type_uint64) \
884 SymE_NeedsProto(ffi_type_sint32) \
885 SymE_NeedsProto(ffi_type_uint32) \
886 SymE_NeedsProto(ffi_type_sint16) \
887 SymE_NeedsProto(ffi_type_uint16) \
888 SymE_NeedsProto(ffi_type_sint8) \
889 SymE_NeedsProto(ffi_type_uint8) \
890 SymE_NeedsProto(ffi_type_pointer)
891
892 #ifdef TABLES_NEXT_TO_CODE
893 #define RTS_RET_SYMBOLS /* nothing */
894 #else
895 #define RTS_RET_SYMBOLS \
896 SymI_HasProto(stg_enter_ret) \
897 SymI_HasProto(stg_gc_fun_ret) \
898 SymI_HasProto(stg_ap_v_ret) \
899 SymI_HasProto(stg_ap_f_ret) \
900 SymI_HasProto(stg_ap_d_ret) \
901 SymI_HasProto(stg_ap_l_ret) \
902 SymI_HasProto(stg_ap_v16_ret) \
903 SymI_HasProto(stg_ap_v32_ret) \
904 SymI_HasProto(stg_ap_v64_ret) \
905 SymI_HasProto(stg_ap_n_ret) \
906 SymI_HasProto(stg_ap_p_ret) \
907 SymI_HasProto(stg_ap_pv_ret) \
908 SymI_HasProto(stg_ap_pp_ret) \
909 SymI_HasProto(stg_ap_ppv_ret) \
910 SymI_HasProto(stg_ap_ppp_ret) \
911 SymI_HasProto(stg_ap_pppv_ret) \
912 SymI_HasProto(stg_ap_pppp_ret) \
913 SymI_HasProto(stg_ap_ppppp_ret) \
914 SymI_HasProto(stg_ap_pppppp_ret)
915 #endif
916
917 /* Modules compiled with -ticky may mention ticky counters */
918 /* This list should marry up with the one in $(TOP)/includes/stg/Ticky.h */
919 #define RTS_TICKY_SYMBOLS \
920 SymI_NeedsProto(ticky_entry_ctrs) \
921 SymI_NeedsProto(top_ct) \
922 \
923 SymI_HasProto(ENT_VIA_NODE_ctr) \
924 SymI_HasProto(ENT_STATIC_THK_SINGLE_ctr) \
925 SymI_HasProto(ENT_STATIC_THK_MANY_ctr) \
926 SymI_HasProto(ENT_DYN_THK_SINGLE_ctr) \
927 SymI_HasProto(ENT_DYN_THK_MANY_ctr) \
928 SymI_HasProto(ENT_STATIC_FUN_DIRECT_ctr) \
929 SymI_HasProto(ENT_DYN_FUN_DIRECT_ctr) \
930 SymI_HasProto(ENT_STATIC_CON_ctr) \
931 SymI_HasProto(ENT_DYN_CON_ctr) \
932 SymI_HasProto(ENT_STATIC_IND_ctr) \
933 SymI_HasProto(ENT_DYN_IND_ctr) \
934 SymI_HasProto(ENT_PERM_IND_ctr) \
935 SymI_HasProto(ENT_PAP_ctr) \
936 SymI_HasProto(ENT_AP_ctr) \
937 SymI_HasProto(ENT_AP_STACK_ctr) \
938 SymI_HasProto(ENT_BH_ctr) \
939 SymI_HasProto(ENT_LNE_ctr) \
940 SymI_HasProto(UNKNOWN_CALL_ctr) \
941 SymI_HasProto(SLOW_CALL_fast_v16_ctr) \
942 SymI_HasProto(SLOW_CALL_fast_v_ctr) \
943 SymI_HasProto(SLOW_CALL_fast_f_ctr) \
944 SymI_HasProto(SLOW_CALL_fast_d_ctr) \
945 SymI_HasProto(SLOW_CALL_fast_l_ctr) \
946 SymI_HasProto(SLOW_CALL_fast_n_ctr) \
947 SymI_HasProto(SLOW_CALL_fast_p_ctr) \
948 SymI_HasProto(SLOW_CALL_fast_pv_ctr) \
949 SymI_HasProto(SLOW_CALL_fast_pp_ctr) \
950 SymI_HasProto(SLOW_CALL_fast_ppv_ctr) \
951 SymI_HasProto(SLOW_CALL_fast_ppp_ctr) \
952 SymI_HasProto(SLOW_CALL_fast_pppv_ctr) \
953 SymI_HasProto(SLOW_CALL_fast_pppp_ctr) \
954 SymI_HasProto(SLOW_CALL_fast_ppppp_ctr) \
955 SymI_HasProto(SLOW_CALL_fast_pppppp_ctr) \
956 SymI_HasProto(VERY_SLOW_CALL_ctr) \
957 SymI_HasProto(ticky_slow_call_unevald) \
958 SymI_HasProto(SLOW_CALL_ctr) \
959 SymI_HasProto(MULTI_CHUNK_SLOW_CALL_ctr) \
960 SymI_HasProto(MULTI_CHUNK_SLOW_CALL_CHUNKS_ctr) \
961 SymI_HasProto(KNOWN_CALL_ctr) \
962 SymI_HasProto(KNOWN_CALL_TOO_FEW_ARGS_ctr) \
963 SymI_HasProto(KNOWN_CALL_EXTRA_ARGS_ctr) \
964 SymI_HasProto(SLOW_CALL_FUN_TOO_FEW_ctr) \
965 SymI_HasProto(SLOW_CALL_FUN_CORRECT_ctr) \
966 SymI_HasProto(SLOW_CALL_FUN_TOO_MANY_ctr) \
967 SymI_HasProto(SLOW_CALL_PAP_TOO_FEW_ctr) \
968 SymI_HasProto(SLOW_CALL_PAP_CORRECT_ctr) \
969 SymI_HasProto(SLOW_CALL_PAP_TOO_MANY_ctr) \
970 SymI_HasProto(SLOW_CALL_UNEVALD_ctr) \
971 SymI_HasProto(UPDF_OMITTED_ctr) \
972 SymI_HasProto(UPDF_PUSHED_ctr) \
973 SymI_HasProto(CATCHF_PUSHED_ctr) \
974 SymI_HasProto(UPDF_RCC_PUSHED_ctr) \
975 SymI_HasProto(UPDF_RCC_OMITTED_ctr) \
976 SymI_HasProto(UPD_SQUEEZED_ctr) \
977 SymI_HasProto(UPD_CON_IN_NEW_ctr) \
978 SymI_HasProto(UPD_CON_IN_PLACE_ctr) \
979 SymI_HasProto(UPD_PAP_IN_NEW_ctr) \
980 SymI_HasProto(UPD_PAP_IN_PLACE_ctr) \
981 SymI_HasProto(ALLOC_HEAP_ctr) \
982 SymI_HasProto(ALLOC_HEAP_tot) \
983 SymI_HasProto(HEAP_CHK_ctr) \
984 SymI_HasProto(STK_CHK_ctr) \
985 SymI_HasProto(ALLOC_RTS_ctr) \
986 SymI_HasProto(ALLOC_RTS_tot) \
987 SymI_HasProto(ALLOC_FUN_ctr) \
988 SymI_HasProto(ALLOC_FUN_adm) \
989 SymI_HasProto(ALLOC_FUN_gds) \
990 SymI_HasProto(ALLOC_FUN_slp) \
991 SymI_HasProto(UPD_NEW_IND_ctr) \
992 SymI_HasProto(UPD_NEW_PERM_IND_ctr) \
993 SymI_HasProto(UPD_OLD_IND_ctr) \
994 SymI_HasProto(UPD_OLD_PERM_IND_ctr) \
995 SymI_HasProto(UPD_CAF_BH_UPDATABLE_ctr) \
996 SymI_HasProto(UPD_CAF_BH_SINGLE_ENTRY_ctr) \
997 SymI_HasProto(GC_SEL_ABANDONED_ctr) \
998 SymI_HasProto(GC_SEL_MINOR_ctr) \
999 SymI_HasProto(GC_SEL_MAJOR_ctr) \
1000 SymI_HasProto(GC_FAILED_PROMOTION_ctr) \
1001 SymI_HasProto(ALLOC_UP_THK_ctr) \
1002 SymI_HasProto(ALLOC_SE_THK_ctr) \
1003 SymI_HasProto(ALLOC_THK_adm) \
1004 SymI_HasProto(ALLOC_THK_gds) \
1005 SymI_HasProto(ALLOC_THK_slp) \
1006 SymI_HasProto(ALLOC_CON_ctr) \
1007 SymI_HasProto(ALLOC_CON_adm) \
1008 SymI_HasProto(ALLOC_CON_gds) \
1009 SymI_HasProto(ALLOC_CON_slp) \
1010 SymI_HasProto(ALLOC_TUP_ctr) \
1011 SymI_HasProto(ALLOC_TUP_adm) \
1012 SymI_HasProto(ALLOC_TUP_gds) \
1013 SymI_HasProto(ALLOC_TUP_slp) \
1014 SymI_HasProto(ALLOC_BH_ctr) \
1015 SymI_HasProto(ALLOC_BH_adm) \
1016 SymI_HasProto(ALLOC_BH_gds) \
1017 SymI_HasProto(ALLOC_BH_slp) \
1018 SymI_HasProto(ALLOC_PRIM_ctr) \
1019 SymI_HasProto(ALLOC_PRIM_adm) \
1020 SymI_HasProto(ALLOC_PRIM_gds) \
1021 SymI_HasProto(ALLOC_PRIM_slp) \
1022 SymI_HasProto(ALLOC_PAP_ctr) \
1023 SymI_HasProto(ALLOC_PAP_adm) \
1024 SymI_HasProto(ALLOC_PAP_gds) \
1025 SymI_HasProto(ALLOC_PAP_slp) \
1026 SymI_HasProto(ALLOC_TSO_ctr) \
1027 SymI_HasProto(ALLOC_TSO_adm) \
1028 SymI_HasProto(ALLOC_TSO_gds) \
1029 SymI_HasProto(ALLOC_TSO_slp) \
1030 SymI_HasProto(RET_NEW_ctr) \
1031 SymI_HasProto(RET_OLD_ctr) \
1032 SymI_HasProto(RET_UNBOXED_TUP_ctr) \
1033 SymI_HasProto(RET_SEMI_loads_avoided)
1034
1035
1036 // On most platforms, the garbage collector rewrites references
1037 // to small integer and char objects to a set of common, shared ones.
1038 //
1039 // We don't do this when compiling to Windows DLLs at the moment because
1040 // it doesn't support cross package data references well.
1041 //
1042 #if defined(COMPILING_WINDOWS_DLL)
1043 #define RTS_INTCHAR_SYMBOLS
1044 #else
1045 #define RTS_INTCHAR_SYMBOLS \
1046 SymI_HasProto(stg_CHARLIKE_closure) \
1047 SymI_HasProto(stg_INTLIKE_closure)
1048 #endif
1049
1050
1051 #define RTS_SYMBOLS \
1052 Maybe_Stable_Names \
1053 RTS_TICKY_SYMBOLS \
1054 SymI_HasProto(StgReturn) \
1055 SymI_HasProto(stg_gc_noregs) \
1056 SymI_HasProto(stg_ret_v_info) \
1057 SymI_HasProto(stg_ret_p_info) \
1058 SymI_HasProto(stg_ret_n_info) \
1059 SymI_HasProto(stg_ret_f_info) \
1060 SymI_HasProto(stg_ret_d_info) \
1061 SymI_HasProto(stg_ret_l_info) \
1062 SymI_HasProto(stg_gc_prim_p) \
1063 SymI_HasProto(stg_gc_prim_pp) \
1064 SymI_HasProto(stg_gc_prim_n) \
1065 SymI_HasProto(stg_enter_info) \
1066 SymI_HasProto(__stg_gc_enter_1) \
1067 SymI_HasProto(stg_gc_unpt_r1) \
1068 SymI_HasProto(stg_gc_unbx_r1) \
1069 SymI_HasProto(stg_gc_f1) \
1070 SymI_HasProto(stg_gc_d1) \
1071 SymI_HasProto(stg_gc_l1) \
1072 SymI_HasProto(stg_gc_pp) \
1073 SymI_HasProto(stg_gc_ppp) \
1074 SymI_HasProto(stg_gc_pppp) \
1075 SymI_HasProto(__stg_gc_fun) \
1076 SymI_HasProto(stg_gc_fun_info) \
1077 SymI_HasProto(stg_yield_noregs) \
1078 SymI_HasProto(stg_yield_to_interpreter) \
1079 SymI_HasProto(stg_block_noregs) \
1080 SymI_HasProto(stg_block_takemvar) \
1081 SymI_HasProto(stg_block_readmvar) \
1082 SymI_HasProto(stg_block_putmvar) \
1083 MAIN_CAP_SYM \
1084 SymI_HasProto(MallocFailHook) \
1085 SymI_HasProto(OnExitHook) \
1086 SymI_HasProto(OutOfHeapHook) \
1087 SymI_HasProto(StackOverflowHook) \
1088 SymI_HasProto(addDLL) \
1089 SymI_HasProto(__int_encodeDouble) \
1090 SymI_HasProto(__word_encodeDouble) \
1091 SymI_HasProto(__int_encodeFloat) \
1092 SymI_HasProto(__word_encodeFloat) \
1093 SymI_HasProto(stg_atomicallyzh) \
1094 SymI_HasProto(barf) \
1095 SymI_HasProto(debugBelch) \
1096 SymI_HasProto(errorBelch) \
1097 SymI_HasProto(sysErrorBelch) \
1098 SymI_HasProto(stg_getMaskingStatezh) \
1099 SymI_HasProto(stg_maskAsyncExceptionszh) \
1100 SymI_HasProto(stg_maskUninterruptiblezh) \
1101 SymI_HasProto(stg_catchzh) \
1102 SymI_HasProto(stg_catchRetryzh) \
1103 SymI_HasProto(stg_catchSTMzh) \
1104 SymI_HasProto(stg_checkzh) \
1105 SymI_HasProto(closure_flags) \
1106 SymI_HasProto(cmp_thread) \
1107 SymI_HasProto(createAdjustor) \
1108 SymI_HasProto(stg_decodeDoublezu2Intzh) \
1109 SymI_HasProto(stg_decodeFloatzuIntzh) \
1110 SymI_HasProto(defaultsHook) \
1111 SymI_HasProto(stg_delayzh) \
1112 SymI_HasProto(stg_deRefWeakzh) \
1113 SymI_HasProto(stg_deRefStablePtrzh) \
1114 SymI_HasProto(dirty_MUT_VAR) \
1115 SymI_HasProto(dirty_TVAR) \
1116 SymI_HasProto(stg_forkzh) \
1117 SymI_HasProto(stg_forkOnzh) \
1118 SymI_HasProto(forkProcess) \
1119 SymI_HasProto(forkOS_createThread) \
1120 SymI_HasProto(freeHaskellFunctionPtr) \
1121 SymI_HasProto(getOrSetGHCConcSignalSignalHandlerStore) \
1122 SymI_HasProto(getOrSetGHCConcWindowsPendingDelaysStore) \
1123 SymI_HasProto(getOrSetGHCConcWindowsIOManagerThreadStore) \
1124 SymI_HasProto(getOrSetGHCConcWindowsProddingStore) \
1125 SymI_HasProto(getOrSetSystemEventThreadEventManagerStore) \
1126 SymI_HasProto(getOrSetSystemEventThreadIOManagerThreadStore) \
1127 SymI_HasProto(getOrSetSystemTimerThreadEventManagerStore) \
1128 SymI_HasProto(getOrSetSystemTimerThreadIOManagerThreadStore) \
1129 SymI_HasProto(getOrSetLibHSghcFastStringTable) \
1130 SymI_HasProto(getGCStats) \
1131 SymI_HasProto(getGCStatsEnabled) \
1132 SymI_HasProto(genericRaise) \
1133 SymI_HasProto(getProgArgv) \
1134 SymI_HasProto(getFullProgArgv) \
1135 SymI_HasProto(getStablePtr) \
1136 SymI_HasProto(foreignExportStablePtr) \
1137 SymI_HasProto(hs_init) \
1138 SymI_HasProto(hs_exit) \
1139 SymI_HasProto(hs_set_argv) \
1140 SymI_HasProto(hs_add_root) \
1141 SymI_HasProto(hs_perform_gc) \
1142 SymI_HasProto(hs_lock_stable_tables) \
1143 SymI_HasProto(hs_unlock_stable_tables) \
1144 SymI_HasProto(hs_free_stable_ptr) \
1145 SymI_HasProto(hs_free_stable_ptr_unsafe) \
1146 SymI_HasProto(hs_free_fun_ptr) \
1147 SymI_HasProto(hs_hpc_rootModule) \
1148 SymI_HasProto(hs_hpc_module) \
1149 SymI_HasProto(initLinker) \
1150 SymI_HasProto(initLinker_) \
1151 SymI_HasProto(stg_unpackClosurezh) \
1152 SymI_HasProto(stg_getApStackValzh) \
1153 SymI_HasProto(stg_getSparkzh) \
1154 SymI_HasProto(stg_numSparkszh) \
1155 SymI_HasProto(stg_isCurrentThreadBoundzh) \
1156 SymI_HasProto(stg_isEmptyMVarzh) \
1157 SymI_HasProto(stg_killThreadzh) \
1158 SymI_HasProto(loadArchive) \
1159 SymI_HasProto(loadObj) \
1160 SymI_HasProto(insertSymbol) \
1161 SymI_HasProto(lookupSymbol) \
1162 SymI_HasProto(stg_makeStablePtrzh) \
1163 SymI_HasProto(stg_mkApUpd0zh) \
1164 SymI_HasProto(stg_myThreadIdzh) \
1165 SymI_HasProto(stg_labelThreadzh) \
1166 SymI_HasProto(stg_newArrayzh) \
1167 SymI_HasProto(stg_copyArrayzh) \
1168 SymI_HasProto(stg_copyMutableArrayzh) \
1169 SymI_HasProto(stg_copyArrayArrayzh) \
1170 SymI_HasProto(stg_copyMutableArrayArrayzh) \
1171 SymI_HasProto(stg_cloneArrayzh) \
1172 SymI_HasProto(stg_cloneMutableArrayzh) \
1173 SymI_HasProto(stg_freezzeArrayzh) \
1174 SymI_HasProto(stg_thawArrayzh) \
1175 SymI_HasProto(stg_newArrayArrayzh) \
1176 SymI_HasProto(stg_casArrayzh) \
1177 SymI_HasProto(stg_newSmallArrayzh) \
1178 SymI_HasProto(stg_unsafeThawSmallArrayzh) \
1179 SymI_HasProto(stg_cloneSmallArrayzh) \
1180 SymI_HasProto(stg_cloneSmallMutableArrayzh) \
1181 SymI_HasProto(stg_freezzeSmallArrayzh) \
1182 SymI_HasProto(stg_thawSmallArrayzh) \
1183 SymI_HasProto(stg_copySmallArrayzh) \
1184 SymI_HasProto(stg_copySmallMutableArrayzh) \
1185 SymI_HasProto(stg_casSmallArrayzh) \
1186 SymI_HasProto(stg_newBCOzh) \
1187 SymI_HasProto(stg_newByteArrayzh) \
1188 SymI_HasProto(stg_casIntArrayzh) \
1189 SymI_HasProto(stg_newMVarzh) \
1190 SymI_HasProto(stg_newMutVarzh) \
1191 SymI_HasProto(stg_newTVarzh) \
1192 SymI_HasProto(stg_noDuplicatezh) \
1193 SymI_HasProto(stg_atomicModifyMutVarzh) \
1194 SymI_HasProto(stg_casMutVarzh) \
1195 SymI_HasProto(stg_newPinnedByteArrayzh) \
1196 SymI_HasProto(stg_newAlignedPinnedByteArrayzh) \
1197 SymI_HasProto(stg_shrinkMutableByteArrayzh) \
1198 SymI_HasProto(stg_resizeMutableByteArrayzh) \
1199 SymI_HasProto(newSpark) \
1200 SymI_HasProto(performGC) \
1201 SymI_HasProto(performMajorGC) \
1202 SymI_HasProto(prog_argc) \
1203 SymI_HasProto(prog_argv) \
1204 SymI_HasProto(stg_putMVarzh) \
1205 SymI_HasProto(stg_raisezh) \
1206 SymI_HasProto(stg_raiseIOzh) \
1207 SymI_HasProto(stg_readTVarzh) \
1208 SymI_HasProto(stg_readTVarIOzh) \
1209 SymI_HasProto(resumeThread) \
1210 SymI_HasProto(setNumCapabilities) \
1211 SymI_HasProto(getNumberOfProcessors) \
1212 SymI_HasProto(resolveObjs) \
1213 SymI_HasProto(stg_retryzh) \
1214 SymI_HasProto(rts_apply) \
1215 SymI_HasProto(rts_checkSchedStatus) \
1216 SymI_HasProto(rts_eval) \
1217 SymI_HasProto(rts_evalIO) \
1218 SymI_HasProto(rts_evalLazyIO) \
1219 SymI_HasProto(rts_evalStableIO) \
1220 SymI_HasProto(rts_eval_) \
1221 SymI_HasProto(rts_getBool) \
1222 SymI_HasProto(rts_getChar) \
1223 SymI_HasProto(rts_getDouble) \
1224 SymI_HasProto(rts_getFloat) \
1225 SymI_HasProto(rts_getInt) \
1226 SymI_HasProto(rts_getInt8) \
1227 SymI_HasProto(rts_getInt16) \
1228 SymI_HasProto(rts_getInt32) \
1229 SymI_HasProto(rts_getInt64) \
1230 SymI_HasProto(rts_getPtr) \
1231 SymI_HasProto(rts_getFunPtr) \
1232 SymI_HasProto(rts_getStablePtr) \
1233 SymI_HasProto(rts_getThreadId) \
1234 SymI_HasProto(rts_getWord) \
1235 SymI_HasProto(rts_getWord8) \
1236 SymI_HasProto(rts_getWord16) \
1237 SymI_HasProto(rts_getWord32) \
1238 SymI_HasProto(rts_getWord64) \
1239 SymI_HasProto(rts_lock) \
1240 SymI_HasProto(rts_mkBool) \
1241 SymI_HasProto(rts_mkChar) \
1242 SymI_HasProto(rts_mkDouble) \
1243 SymI_HasProto(rts_mkFloat) \
1244 SymI_HasProto(rts_mkInt) \
1245 SymI_HasProto(rts_mkInt8) \
1246 SymI_HasProto(rts_mkInt16) \
1247 SymI_HasProto(rts_mkInt32) \
1248 SymI_HasProto(rts_mkInt64) \
1249 SymI_HasProto(rts_mkPtr) \
1250 SymI_HasProto(rts_mkFunPtr) \
1251 SymI_HasProto(rts_mkStablePtr) \
1252 SymI_HasProto(rts_mkString) \
1253 SymI_HasProto(rts_mkWord) \
1254 SymI_HasProto(rts_mkWord8) \
1255 SymI_HasProto(rts_mkWord16) \
1256 SymI_HasProto(rts_mkWord32) \
1257 SymI_HasProto(rts_mkWord64) \
1258 SymI_HasProto(rts_unlock) \
1259 SymI_HasProto(rts_unsafeGetMyCapability) \
1260 SymI_HasProto(rtsSupportsBoundThreads) \
1261 SymI_HasProto(rts_isProfiled) \
1262 SymI_HasProto(rts_isDynamic) \
1263 SymI_HasProto(setProgArgv) \
1264 SymI_HasProto(startupHaskell) \
1265 SymI_HasProto(shutdownHaskell) \
1266 SymI_HasProto(shutdownHaskellAndExit) \
1267 SymI_HasProto(stable_name_table) \
1268 SymI_HasProto(stable_ptr_table) \
1269 SymI_HasProto(stackOverflow) \
1270 SymI_HasProto(stg_CAF_BLACKHOLE_info) \
1271 SymI_HasProto(stg_BLACKHOLE_info) \
1272 SymI_HasProto(__stg_EAGER_BLACKHOLE_info) \
1273 SymI_HasProto(stg_BLOCKING_QUEUE_CLEAN_info) \
1274 SymI_HasProto(stg_BLOCKING_QUEUE_DIRTY_info) \
1275 SymI_HasProto(startTimer) \
1276 SymI_HasProto(stg_MVAR_CLEAN_info) \
1277 SymI_HasProto(stg_MVAR_DIRTY_info) \
1278 SymI_HasProto(stg_TVAR_CLEAN_info) \
1279 SymI_HasProto(stg_TVAR_DIRTY_info) \
1280 SymI_HasProto(stg_IND_STATIC_info) \
1281 SymI_HasProto(stg_ARR_WORDS_info) \
1282 SymI_HasProto(stg_MUT_ARR_PTRS_DIRTY_info) \
1283 SymI_HasProto(stg_MUT_ARR_PTRS_FROZEN_info) \
1284 SymI_HasProto(stg_MUT_ARR_PTRS_FROZEN0_info) \
1285 SymI_HasProto(stg_SMALL_MUT_ARR_PTRS_DIRTY_info) \
1286 SymI_HasProto(stg_SMALL_MUT_ARR_PTRS_FROZEN_info) \
1287 SymI_HasProto(stg_SMALL_MUT_ARR_PTRS_FROZEN0_info) \
1288 SymI_HasProto(stg_MUT_VAR_CLEAN_info) \
1289 SymI_HasProto(stg_MUT_VAR_DIRTY_info) \
1290 SymI_HasProto(stg_WEAK_info) \
1291 SymI_HasProto(stg_ap_v_info) \
1292 SymI_HasProto(stg_ap_f_info) \
1293 SymI_HasProto(stg_ap_d_info) \
1294 SymI_HasProto(stg_ap_l_info) \
1295 SymI_HasProto(stg_ap_v16_info) \
1296 SymI_HasProto(stg_ap_v32_info) \
1297 SymI_HasProto(stg_ap_v64_info) \
1298 SymI_HasProto(stg_ap_n_info) \
1299 SymI_HasProto(stg_ap_p_info) \
1300 SymI_HasProto(stg_ap_pv_info) \
1301 SymI_HasProto(stg_ap_pp_info) \
1302 SymI_HasProto(stg_ap_ppv_info) \
1303 SymI_HasProto(stg_ap_ppp_info) \
1304 SymI_HasProto(stg_ap_pppv_info) \
1305 SymI_HasProto(stg_ap_pppp_info) \
1306 SymI_HasProto(stg_ap_ppppp_info) \
1307 SymI_HasProto(stg_ap_pppppp_info) \
1308 SymI_HasProto(stg_ap_0_fast) \
1309 SymI_HasProto(stg_ap_v_fast) \
1310 SymI_HasProto(stg_ap_f_fast) \
1311 SymI_HasProto(stg_ap_d_fast) \
1312 SymI_HasProto(stg_ap_l_fast) \
1313 SymI_HasProto(stg_ap_v16_fast) \
1314 SymI_HasProto(stg_ap_v32_fast) \
1315 SymI_HasProto(stg_ap_v64_fast) \
1316 SymI_HasProto(stg_ap_n_fast) \
1317 SymI_HasProto(stg_ap_p_fast) \
1318 SymI_HasProto(stg_ap_pv_fast) \
1319 SymI_HasProto(stg_ap_pp_fast) \
1320 SymI_HasProto(stg_ap_ppv_fast) \
1321 SymI_HasProto(stg_ap_ppp_fast) \
1322 SymI_HasProto(stg_ap_pppv_fast) \
1323 SymI_HasProto(stg_ap_pppp_fast) \
1324 SymI_HasProto(stg_ap_ppppp_fast) \
1325 SymI_HasProto(stg_ap_pppppp_fast) \
1326 SymI_HasProto(stg_ap_1_upd_info) \
1327 SymI_HasProto(stg_ap_2_upd_info) \
1328 SymI_HasProto(stg_ap_3_upd_info) \
1329 SymI_HasProto(stg_ap_4_upd_info) \
1330 SymI_HasProto(stg_ap_5_upd_info) \
1331 SymI_HasProto(stg_ap_6_upd_info) \
1332 SymI_HasProto(stg_ap_7_upd_info) \
1333 SymI_HasProto(stg_exit) \
1334 SymI_HasProto(stg_sel_0_upd_info) \
1335 SymI_HasProto(stg_sel_1_upd_info) \
1336 SymI_HasProto(stg_sel_2_upd_info) \
1337 SymI_HasProto(stg_sel_3_upd_info) \
1338 SymI_HasProto(stg_sel_4_upd_info) \
1339 SymI_HasProto(stg_sel_5_upd_info) \
1340 SymI_HasProto(stg_sel_6_upd_info) \
1341 SymI_HasProto(stg_sel_7_upd_info) \
1342 SymI_HasProto(stg_sel_8_upd_info) \
1343 SymI_HasProto(stg_sel_9_upd_info) \
1344 SymI_HasProto(stg_sel_10_upd_info) \
1345 SymI_HasProto(stg_sel_11_upd_info) \
1346 SymI_HasProto(stg_sel_12_upd_info) \
1347 SymI_HasProto(stg_sel_13_upd_info) \
1348 SymI_HasProto(stg_sel_14_upd_info) \
1349 SymI_HasProto(stg_sel_15_upd_info) \
1350 SymI_HasProto(stg_sel_0_noupd_info) \
1351 SymI_HasProto(stg_sel_1_noupd_info) \
1352 SymI_HasProto(stg_sel_2_noupd_info) \
1353 SymI_HasProto(stg_sel_3_noupd_info) \
1354 SymI_HasProto(stg_sel_4_noupd_info) \
1355 SymI_HasProto(stg_sel_5_noupd_info) \
1356 SymI_HasProto(stg_sel_6_noupd_info) \
1357 SymI_HasProto(stg_sel_7_noupd_info) \
1358 SymI_HasProto(stg_sel_8_noupd_info) \
1359 SymI_HasProto(stg_sel_9_noupd_info) \
1360 SymI_HasProto(stg_sel_10_noupd_info) \
1361 SymI_HasProto(stg_sel_11_noupd_info) \
1362 SymI_HasProto(stg_sel_12_noupd_info) \
1363 SymI_HasProto(stg_sel_13_noupd_info) \
1364 SymI_HasProto(stg_sel_14_noupd_info) \
1365 SymI_HasProto(stg_sel_15_noupd_info) \
1366 SymI_HasProto(stg_upd_frame_info) \
1367 SymI_HasProto(stg_bh_upd_frame_info) \
1368 SymI_HasProto(suspendThread) \
1369 SymI_HasProto(stg_takeMVarzh) \
1370 SymI_HasProto(stg_readMVarzh) \
1371 SymI_HasProto(stg_threadStatuszh) \
1372 SymI_HasProto(stg_tryPutMVarzh) \
1373 SymI_HasProto(stg_tryTakeMVarzh) \
1374 SymI_HasProto(stg_tryReadMVarzh) \
1375 SymI_HasProto(stg_unmaskAsyncExceptionszh) \
1376 SymI_HasProto(unloadObj) \
1377 SymI_HasProto(stg_unsafeThawArrayzh) \
1378 SymI_HasProto(stg_waitReadzh) \
1379 SymI_HasProto(stg_waitWritezh) \
1380 SymI_HasProto(stg_writeTVarzh) \
1381 SymI_HasProto(stg_yieldzh) \
1382 SymI_NeedsProto(stg_interp_constr_entry) \
1383 SymI_HasProto(stg_arg_bitmaps) \
1384 SymI_HasProto(large_alloc_lim) \
1385 SymI_HasProto(g0) \
1386 SymI_HasProto(allocate) \
1387 SymI_HasProto(allocateExec) \
1388 SymI_HasProto(flushExec) \
1389 SymI_HasProto(freeExec) \
1390 SymI_HasProto(getAllocations) \
1391 SymI_HasProto(revertCAFs) \
1392 SymI_HasProto(RtsFlags) \
1393 SymI_NeedsProto(rts_breakpoint_io_action) \
1394 SymI_NeedsProto(rts_stop_next_breakpoint) \
1395 SymI_NeedsProto(rts_stop_on_exception) \
1396 SymI_HasProto(stopTimer) \
1397 SymI_HasProto(n_capabilities) \
1398 SymI_HasProto(enabled_capabilities) \
1399 SymI_HasProto(stg_traceCcszh) \
1400 SymI_HasProto(stg_traceEventzh) \
1401 SymI_HasProto(stg_traceMarkerzh) \
1402 SymI_HasProto(getMonotonicNSec) \
1403 SymI_HasProto(lockFile) \
1404 SymI_HasProto(unlockFile) \
1405 SymI_HasProto(startProfTimer) \
1406 SymI_HasProto(stopProfTimer) \
1407 SymI_HasProto(atomic_inc) \
1408 SymI_HasProto(atomic_dec) \
1409 RTS_USER_SIGNALS_SYMBOLS \
1410 RTS_INTCHAR_SYMBOLS
1411
1412
1413 // 64-bit support functions in libgcc.a
1414 #if defined(__GNUC__) && SIZEOF_VOID_P <= 4 && !defined(_ABIN32)
1415 #define RTS_LIBGCC_SYMBOLS \
1416 SymI_NeedsProto(__divdi3) \
1417 SymI_NeedsProto(__udivdi3) \
1418 SymI_NeedsProto(__moddi3) \
1419 SymI_NeedsProto(__umoddi3) \
1420 SymI_NeedsProto(__muldi3) \
1421 SymI_NeedsProto(__ashldi3) \
1422 SymI_NeedsProto(__ashrdi3) \
1423 SymI_NeedsProto(__lshrdi3) \
1424 SymI_NeedsProto(__fixunsdfdi)
1425 #else
1426 #define RTS_LIBGCC_SYMBOLS
1427 #endif
1428
1429 #if defined(darwin_HOST_OS) && defined(powerpc_HOST_ARCH)
1430 // Symbols that don't have a leading underscore
1431 // on Mac OS X. They have to receive special treatment,
1432 // see machoInitSymbolsWithoutUnderscore()
1433 #define RTS_MACHO_NOUNDERLINE_SYMBOLS \
1434 SymI_NeedsProto(saveFP) \
1435 SymI_NeedsProto(restFP)
1436 #endif
1437
1438 /* entirely bogus claims about types of these symbols */
1439 #define SymI_NeedsProto(vvv) extern void vvv(void);
1440 #if defined(COMPILING_WINDOWS_DLL)
1441 #define SymE_HasProto(vvv) SymE_HasProto(vvv);
1442 # if defined(x86_64_HOST_ARCH)
1443 # define SymE_NeedsProto(vvv) extern void __imp_ ## vvv (void);
1444 # else
1445 # define SymE_NeedsProto(vvv) extern void _imp__ ## vvv (void);
1446 # endif
1447 #else
1448 #define SymE_NeedsProto(vvv) SymI_NeedsProto(vvv);
1449 #define SymE_HasProto(vvv) SymI_HasProto(vvv)
1450 #endif
1451 #define SymI_HasProto(vvv) /**/
1452 #define SymI_HasProto_redirect(vvv,xxx) /**/
1453 RTS_SYMBOLS
1454 RTS_RET_SYMBOLS
1455 RTS_POSIX_ONLY_SYMBOLS
1456 RTS_MINGW_ONLY_SYMBOLS
1457 RTS_CYGWIN_ONLY_SYMBOLS
1458 RTS_DARWIN_ONLY_SYMBOLS
1459 RTS_LIBGCC_SYMBOLS
1460 RTS_LIBFFI_SYMBOLS
1461 #undef SymI_NeedsProto
1462 #undef SymI_HasProto
1463 #undef SymI_HasProto_redirect
1464 #undef SymE_HasProto
1465 #undef SymE_NeedsProto
1466
1467 #ifdef LEADING_UNDERSCORE
1468 #define MAYBE_LEADING_UNDERSCORE_STR(s) ("_" s)
1469 #else
1470 #define MAYBE_LEADING_UNDERSCORE_STR(s) (s)
1471 #endif
1472
1473 #define SymI_HasProto(vvv) { MAYBE_LEADING_UNDERSCORE_STR(#vvv), \
1474 (void*)(&(vvv)) },
1475 #define SymE_HasProto(vvv) { MAYBE_LEADING_UNDERSCORE_STR(#vvv), \
1476 (void*)DLL_IMPORT_DATA_REF(vvv) },
1477
1478 #define SymI_NeedsProto(vvv) SymI_HasProto(vvv)
1479 #define SymE_NeedsProto(vvv) SymE_HasProto(vvv)
1480
1481 // SymI_HasProto_redirect allows us to redirect references to one symbol to
1482 // another symbol. See newCAF/newDynCAF for an example.
1483 #define SymI_HasProto_redirect(vvv,xxx) \
1484 { MAYBE_LEADING_UNDERSCORE_STR(#vvv), \
1485 (void*)(&(xxx)) },
1486
1487 static RtsSymbolVal rtsSyms[] = {
1488 RTS_SYMBOLS
1489 RTS_RET_SYMBOLS
1490 RTS_POSIX_ONLY_SYMBOLS
1491 RTS_MINGW_ONLY_SYMBOLS
1492 RTS_CYGWIN_ONLY_SYMBOLS
1493 RTS_DARWIN_ONLY_SYMBOLS
1494 RTS_LIBGCC_SYMBOLS
1495 RTS_LIBFFI_SYMBOLS
1496 #if defined(darwin_HOST_OS) && defined(i386_HOST_ARCH)
1497 // dyld stub code contains references to this,
1498 // but it should never be called because we treat
1499 // lazy pointers as nonlazy.
1500 { "dyld_stub_binding_helper", (void*)0xDEADBEEF },
1501 #endif
1502 { 0, 0 } /* sentinel */
1503 };
1504
1505
1506 /* -----------------------------------------------------------------------------
1507 * Insert symbols into hash tables, checking for duplicates.
1508 */
1509
1510 static void ghciInsertSymbolTable(
1511 pathchar* obj_name,
1512 HashTable *table,
1513 char* key,
1514 void *data,
1515 HsBool weak,
1516 ObjectCode *owner)
1517 {
1518 RtsSymbolInfo *pinfo = lookupStrHashTable(table, key);
1519 if (!pinfo) /* new entry */
1520 {
1521 pinfo = stgMallocBytes(sizeof (*pinfo), "ghciInsertToSymbolTable");
1522 pinfo->value = data;
1523 pinfo->owner = owner;
1524 pinfo->weak = weak;
1525 insertStrHashTable(table, key, pinfo);
1526 return;
1527 } else if ((!pinfo->weak || pinfo->value) && weak) {
1528 return; /* duplicate weak symbol, throw it away */
1529 } else if (pinfo->weak) /* weak symbol is in the table */
1530 {
1531 /* override the weak definition with the non-weak one */
1532 pinfo->value = data;
1533 pinfo->owner = owner;
1534 pinfo->weak = HS_BOOL_FALSE;
1535 return;
1536 }
1537 debugBelch(
1538 "\n\n"
1539 "GHCi runtime linker: fatal error: I found a duplicate definition for symbol\n"
1540 " %s\n"
1541 "whilst processing object file\n"
1542 " %" PATH_FMT "\n"
1543 "This could be caused by:\n"
1544 " * Loading two different object files which export the same symbol\n"
1545 " * Specifying the same object file twice on the GHCi command line\n"
1546 " * An incorrect `package.conf' entry, causing some object to be\n"
1547 " loaded twice.\n"
1548 "GHCi cannot safely continue in this situation. Exiting now. Sorry.\n"
1549 "\n",
1550 (char*)key,
1551 obj_name
1552 );
1553 stg_exit(1);
1554 }
1555
1556 static HsBool ghciLookupSymbolTable(HashTable *table,
1557 const char *key, void **result)
1558 {
1559 RtsSymbolInfo *pinfo = lookupStrHashTable(table, key);
1560 if (!pinfo) {
1561 *result = NULL;
1562 return HS_BOOL_FALSE;
1563 }
1564 if (pinfo->weak)
1565 IF_DEBUG(linker, debugBelch("lookup: promoting %s\n", key));
1566 /* Once it's looked up, it can no longer be overridden */
1567 pinfo->weak = HS_BOOL_FALSE;
1568
1569 *result = pinfo->value;
1570 return HS_BOOL_TRUE;
1571 }
1572
1573 static void ghciRemoveSymbolTable(HashTable *table, const char *key,
1574 ObjectCode *owner)
1575 {
1576 RtsSymbolInfo *pinfo = lookupStrHashTable(table, key);
1577 if (!pinfo || owner != pinfo->owner) return;
1578 removeStrHashTable(table, key, NULL);
1579 stgFree(pinfo);
1580 }
1581 /* -----------------------------------------------------------------------------
1582 * initialize the object linker
1583 */
1584
1585
1586 static int linker_init_done = 0 ;
1587
1588 #if defined(OBJFORMAT_ELF) || defined(OBJFORMAT_MACHO)
1589 static void *dl_prog_handle;
1590 static regex_t re_invalid;
1591 static regex_t re_realso;
1592 #ifdef THREADED_RTS
1593 static Mutex dl_mutex; // mutex to protect dlopen/dlerror critical section
1594 #endif
1595 #endif
1596
1597 void initLinker (void)
1598 {
1599 // default to retaining CAFs for backwards compatibility. Most
1600 // users will want initLinker_(0): otherwise unloadObj() will not
1601 // be able to unload object files when they contain CAFs.
1602 initLinker_(1);
1603 }
1604
1605 void
1606 initLinker_ (int retain_cafs)
1607 {
1608 RtsSymbolVal *sym;
1609 #if defined(OBJFORMAT_ELF) || defined(OBJFORMAT_MACHO)
1610 int compileResult;
1611 #endif
1612
1613 IF_DEBUG(linker, debugBelch("initLinker: start\n"));
1614
1615 /* Make initLinker idempotent, so we can call it
1616 before every relevant operation; that means we
1617 don't need to initialise the linker separately */
1618 if (linker_init_done == 1) {
1619 IF_DEBUG(linker, debugBelch("initLinker: idempotent return\n"));
1620 return;
1621 } else {
1622 linker_init_done = 1;
1623 }
1624
1625 objects = NULL;
1626 unloaded_objects = NULL;
1627
1628 #if defined(THREADED_RTS) && (defined(OBJFORMAT_ELF) || defined(OBJFORMAT_MACHO))
1629 initMutex(&dl_mutex);
1630 #endif
1631 symhash = allocStrHashTable();
1632
1633 /* populate the symbol table with stuff from the RTS */
1634 for (sym = rtsSyms; sym->lbl != NULL; sym++) {
1635 ghciInsertSymbolTable(WSTR("(GHCi built-in symbols)"),
1636 symhash, sym->lbl, sym->addr, HS_BOOL_FALSE, NULL);
1637 IF_DEBUG(linker, debugBelch("initLinker: inserting rts symbol %s, %p\n", sym->lbl, sym->addr));
1638 }
1639 # if defined(OBJFORMAT_MACHO) && defined(powerpc_HOST_ARCH)
1640 machoInitSymbolsWithoutUnderscore();
1641 # endif
1642 /* GCC defines a special symbol __dso_handle which is resolved to NULL if
1643 referenced from a statically linked module. We need to mimic this, but
1644 we cannot use NULL because we use it to mean nonexistent symbols. So we
1645 use an arbitrary (hopefully unique) address here.
1646 */
1647 ghciInsertSymbolTable(WSTR("(GHCi special symbols)"),
1648 symhash, "__dso_handle", (void *)0x12345687, HS_BOOL_FALSE, NULL);
1649
1650 // Redurect newCAF to newDynCAF if retain_cafs is true.
1651 ghciInsertSymbolTable(WSTR("(GHCi built-in symbols)"), symhash,
1652 MAYBE_LEADING_UNDERSCORE_STR("newCAF"),
1653 retain_cafs ? newDynCAF : newCAF,
1654 HS_BOOL_FALSE, NULL);
1655
1656 # if defined(OBJFORMAT_ELF) || defined(OBJFORMAT_MACHO)
1657 # if defined(RTLD_DEFAULT)
1658 dl_prog_handle = RTLD_DEFAULT;
1659 # else
1660 dl_prog_handle = dlopen(NULL, RTLD_LAZY);
1661 # endif /* RTLD_DEFAULT */
1662
1663 compileResult = regcomp(&re_invalid,
1664 "(([^ \t()])+\\.so([^ \t:()])*):([ \t])*(invalid ELF header|file too short)",
1665 REG_EXTENDED);
1666 if (compileResult != 0) {
1667 barf("Compiling re_invalid failed");
1668 }
1669 compileResult = regcomp(&re_realso,
1670 "(GROUP|INPUT) *\\( *([^ )]+)",
1671 REG_EXTENDED);
1672 if (compileResult != 0) {
1673 barf("Compiling re_realso failed");
1674 }
1675 # endif
1676
1677 #if !defined(ALWAYS_PIC) && defined(x86_64_HOST_ARCH)
1678 if (RtsFlags.MiscFlags.linkerMemBase != 0) {
1679 // User-override for mmap_32bit_base
1680 mmap_32bit_base = (void*)RtsFlags.MiscFlags.linkerMemBase;
1681 }
1682 #endif
1683
1684 #if defined(mingw32_HOST_OS)
1685 /*
1686 * These two libraries cause problems when added to the static link,
1687 * but are necessary for resolving symbols in GHCi, hence we load
1688 * them manually here.
1689 */
1690 addDLL(WSTR("msvcrt"));
1691 addDLL(WSTR("kernel32"));
1692 #endif
1693
1694 IF_DEBUG(linker, debugBelch("initLinker: done\n"));
1695 return;
1696 }
1697
1698 void
1699 exitLinker( void ) {
1700 #if defined(OBJFORMAT_ELF) || defined(OBJFORMAT_MACHO)
1701 if (linker_init_done == 1) {
1702 regfree(&re_invalid);
1703 regfree(&re_realso);
1704 #ifdef THREADED_RTS
1705 closeMutex(&dl_mutex);
1706 #endif
1707 }
1708 #endif
1709 }
1710
1711 /* -----------------------------------------------------------------------------
1712 * Loading DLL or .so dynamic libraries
1713 * -----------------------------------------------------------------------------
1714 *
1715 * Add a DLL from which symbols may be found. In the ELF case, just
1716 * do RTLD_GLOBAL-style add, so no further messing around needs to
1717 * happen in order that symbols in the loaded .so are findable --
1718 * lookupSymbol() will subsequently see them by dlsym on the program's
1719 * dl-handle. Returns NULL if success, otherwise ptr to an err msg.
1720 *
1721 * In the PEi386 case, open the DLLs and put handles to them in a
1722 * linked list. When looking for a symbol, try all handles in the
1723 * list. This means that we need to load even DLLs that are guaranteed
1724 * to be in the ghc.exe image already, just so we can get a handle
1725 * to give to loadSymbol, so that we can find the symbols. For such
1726 * libraries, the LoadLibrary call should be a no-op except for returning
1727 * the handle.
1728 *
1729 */
1730
1731 #if defined(OBJFORMAT_PEi386)
1732 /* A record for storing handles into DLLs. */
1733
1734 typedef
1735 struct _OpenedDLL {
1736 pathchar* name;
1737 struct _OpenedDLL* next;
1738 HINSTANCE instance;
1739 }
1740 OpenedDLL;
1741
1742 /* A list thereof. */
1743 static OpenedDLL* opened_dlls = NULL;
1744
1745 /* A record for storing indirectly linked functions from DLLs. */
1746 typedef
1747 struct _IndirectAddr {
1748 void* addr;
1749 struct _IndirectAddr* next;
1750 }
1751 IndirectAddr;
1752
1753 /* A list thereof. */
1754 static IndirectAddr* indirects = NULL;
1755
1756 #endif
1757
1758 # if defined(OBJFORMAT_ELF) || defined(OBJFORMAT_MACHO)
1759
1760 /* Suppose in ghci we load a temporary SO for a module containing
1761 f = 1
1762 and then modify the module, recompile, and load another temporary
1763 SO with
1764 f = 2
1765 Then as we don't unload the first SO, dlsym will find the
1766 f = 1
1767 symbol whereas we want the
1768 f = 2
1769 symbol. We therefore need to keep our own SO handle list, and
1770 try SOs in the right order. */
1771
1772 typedef
1773 struct _OpenedSO {
1774 struct _OpenedSO* next;
1775 void *handle;
1776 }
1777 OpenedSO;
1778
1779 /* A list thereof. */
1780 static OpenedSO* openedSOs = NULL;
1781
1782 static const char *
1783 internal_dlopen(const char *dll_name)
1784 {
1785 OpenedSO* o_so;
1786 void *hdl;
1787 const char *errmsg;
1788 char *errmsg_copy;
1789
1790 // omitted: RTLD_NOW
1791 // see http://www.haskell.org/pipermail/cvs-ghc/2007-September/038570.html
1792 IF_DEBUG(linker,
1793 debugBelch("internal_dlopen: dll_name = '%s'\n", dll_name));
1794
1795 //-------------- Begin critical section ------------------
1796 // This critical section is necessary because dlerror() is not
1797 // required to be reentrant (see POSIX -- IEEE Std 1003.1-2008)
1798 // Also, the error message returned must be copied to preserve it
1799 // (see POSIX also)
1800
1801 ACQUIRE_LOCK(&dl_mutex);
1802 hdl = dlopen(dll_name, RTLD_LAZY | RTLD_GLOBAL);
1803
1804 errmsg = NULL;
1805 if (hdl == NULL) {
1806 /* dlopen failed; return a ptr to the error msg. */
1807 errmsg = dlerror();
1808 if (errmsg == NULL) errmsg = "addDLL: unknown error";
1809 errmsg_copy = stgMallocBytes(strlen(errmsg)+1, "addDLL");
1810 strcpy(errmsg_copy, errmsg);
1811 errmsg = errmsg_copy;
1812 }
1813 o_so = stgMallocBytes(sizeof(OpenedSO), "addDLL");
1814 o_so->handle = hdl;
1815 o_so->next = openedSOs;
1816 openedSOs = o_so;
1817
1818 RELEASE_LOCK(&dl_mutex);
1819 //--------------- End critical section -------------------
1820
1821 return errmsg;
1822 }
1823
1824 static void *
1825 internal_dlsym(void *hdl, const char *symbol) {
1826 OpenedSO* o_so;
1827 void *v;
1828
1829 // We acquire dl_mutex as concurrent dl* calls may alter dlerror
1830 ACQUIRE_LOCK(&dl_mutex);
1831 dlerror();
1832 for (o_so = openedSOs; o_so != NULL; o_so = o_so->next) {
1833 v = dlsym(o_so->handle, symbol);
1834 if (dlerror() == NULL) {
1835 RELEASE_LOCK(&dl_mutex);
1836 return v;
1837 }
1838 }
1839 v = dlsym(hdl, symbol);
1840 RELEASE_LOCK(&dl_mutex);
1841 return v;
1842 }
1843 # endif
1844
1845 const char *
1846 addDLL( pathchar *dll_name )
1847 {
1848 # if defined(OBJFORMAT_ELF) || defined(OBJFORMAT_MACHO)
1849 /* ------------------- ELF DLL loader ------------------- */
1850
1851 #define NMATCH 5
1852 regmatch_t match[NMATCH];
1853 const char *errmsg;
1854 FILE* fp;
1855 size_t match_length;
1856 #define MAXLINE 1000
1857 char line[MAXLINE];
1858 int result;
1859
1860 initLinker();
1861
1862 IF_DEBUG(linker, debugBelch("addDLL: dll_name = '%s'\n", dll_name));
1863 errmsg = internal_dlopen(dll_name);
1864
1865 if (errmsg == NULL) {
1866 return NULL;
1867 }
1868
1869 // GHC Trac ticket #2615
1870 // On some systems (e.g., Gentoo Linux) dynamic files (e.g. libc.so)
1871 // contain linker scripts rather than ELF-format object code. This
1872 // code handles the situation by recognizing the real object code
1873 // file name given in the linker script.
1874 //
1875 // If an "invalid ELF header" error occurs, it is assumed that the
1876 // .so file contains a linker script instead of ELF object code.
1877 // In this case, the code looks for the GROUP ( ... ) linker
1878 // directive. If one is found, the first file name inside the
1879 // parentheses is treated as the name of a dynamic library and the
1880 // code attempts to dlopen that file. If this is also unsuccessful,
1881 // an error message is returned.
1882
1883 // see if the error message is due to an invalid ELF header
1884 IF_DEBUG(linker, debugBelch("errmsg = '%s'\n", errmsg));
1885 result = regexec(&re_invalid, errmsg, (size_t) NMATCH, match, 0);
1886 IF_DEBUG(linker, debugBelch("result = %i\n", result));
1887 if (result == 0) {
1888 // success -- try to read the named file as a linker script
1889 match_length = (size_t) stg_min((match[1].rm_eo - match[1].rm_so),
1890 MAXLINE-1);
1891 strncpy(line, (errmsg+(match[1].rm_so)),match_length);
1892 line[match_length] = '\0'; // make sure string is null-terminated
1893 IF_DEBUG(linker, debugBelch ("file name = '%s'\n", line));
1894 if ((fp = fopen(line, "r")) == NULL) {
1895 return errmsg; // return original error if open fails
1896 }
1897 // try to find a GROUP or INPUT ( ... ) command
1898 while (fgets(line, MAXLINE, fp) != NULL) {
1899 IF_DEBUG(linker, debugBelch("input line = %s", line));
1900 if (regexec(&re_realso, line, (size_t) NMATCH, match, 0) == 0) {
1901 // success -- try to dlopen the first named file
1902 IF_DEBUG(linker, debugBelch("match%s\n",""));
1903 line[match[2].rm_eo] = '\0';
1904 stgFree((void*)errmsg); // Free old message before creating new one
1905 errmsg = internal_dlopen(line+match[2].rm_so);
1906 break;
1907 }
1908 // if control reaches here, no GROUP or INPUT ( ... ) directive
1909 // was found and the original error message is returned to the
1910 // caller
1911 }
1912 fclose(fp);
1913 }
1914 return errmsg;
1915
1916 # elif defined(OBJFORMAT_PEi386)
1917 /* ------------------- Win32 DLL loader ------------------- */
1918
1919 pathchar* buf;
1920 OpenedDLL* o_dll;
1921 HINSTANCE instance;
1922
1923 initLinker();
1924
1925 /* debugBelch("\naddDLL; dll_name = `%s'\n", dll_name); */
1926
1927 /* See if we've already got it, and ignore if so. */
1928 for (o_dll = opened_dlls; o_dll != NULL; o_dll = o_dll->next) {
1929 if (0 == pathcmp(o_dll->name, dll_name))
1930 return NULL;
1931 }
1932
1933 /* The file name has no suffix (yet) so that we can try
1934 both foo.dll and foo.drv
1935
1936 The documentation for LoadLibrary says:
1937 If no file name extension is specified in the lpFileName
1938 parameter, the default library extension .dll is
1939 appended. However, the file name string can include a trailing
1940 point character (.) to indicate that the module name has no
1941 extension. */
1942
1943 buf = stgMallocBytes((pathlen(dll_name) + 10) * sizeof(wchar_t), "addDLL");
1944 swprintf(buf, L"%s.DLL", dll_name);
1945 instance = LoadLibraryW(buf);
1946 if (instance == NULL) {
1947 if (GetLastError() != ERROR_MOD_NOT_FOUND) goto error;
1948 // KAA: allow loading of drivers (like winspool.drv)
1949 swprintf(buf, L"%s.DRV", dll_name);
1950 instance = LoadLibraryW(buf);
1951 if (instance == NULL) {
1952 if (GetLastError() != ERROR_MOD_NOT_FOUND) goto error;
1953 // #1883: allow loading of unix-style libfoo.dll DLLs
1954 swprintf(buf, L"lib%s.DLL", dll_name);
1955 instance = LoadLibraryW(buf);
1956 if (instance == NULL) {
1957 goto error;
1958 }
1959 }
1960 }
1961 stgFree(buf);
1962
1963 /* Add this DLL to the list of DLLs in which to search for symbols. */
1964 o_dll = stgMallocBytes( sizeof(OpenedDLL), "addDLL" );
1965 o_dll->name = pathdup(dll_name);
1966 o_dll->instance = instance;
1967 o_dll->next = opened_dlls;
1968 opened_dlls = o_dll;
1969
1970 return NULL;
1971
1972 error:
1973 stgFree(buf);
1974 sysErrorBelch("%" PATH_FMT, dll_name);
1975
1976 /* LoadLibrary failed; return a ptr to the error msg. */
1977 return "addDLL: could not load DLL";
1978
1979 # else
1980 barf("addDLL: not implemented on this platform");
1981 # endif
1982 }
1983
1984 /* -----------------------------------------------------------------------------
1985 * insert a symbol in the hash table
1986 */
1987 void
1988 insertSymbol(pathchar* obj_name, char* key, void* data)
1989 {
1990 ghciInsertSymbolTable(obj_name, symhash, key, data, HS_BOOL_FALSE, NULL);
1991 }
1992
1993 /* -----------------------------------------------------------------------------
1994 * lookup a symbol in the hash table
1995 */
1996 void *
1997 lookupSymbol( char *lbl )
1998 {
1999 void *val;
2000 IF_DEBUG(linker, debugBelch("lookupSymbol: looking up %s\n", lbl));
2001 initLinker() ;
2002 ASSERT(symhash != NULL);
2003
2004 if (!ghciLookupSymbolTable(symhash, lbl, &val)) {
2005 IF_DEBUG(linker, debugBelch("lookupSymbol: symbol not found\n"));
2006 # if defined(OBJFORMAT_ELF)
2007 return internal_dlsym(dl_prog_handle, lbl);
2008 # elif defined(OBJFORMAT_MACHO)
2009 # if HAVE_DLFCN_H
2010 /* On OS X 10.3 and later, we use dlsym instead of the old legacy
2011 interface.
2012
2013 HACK: On OS X, all symbols are prefixed with an underscore.
2014 However, dlsym wants us to omit the leading underscore from the
2015 symbol name -- the dlsym routine puts it back on before searching
2016 for the symbol. For now, we simply strip it off here (and ONLY
2017 here).
2018 */
2019 IF_DEBUG(linker, debugBelch("lookupSymbol: looking up %s with dlsym\n", lbl));
2020 ASSERT(lbl[0] == '_');
2021 return internal_dlsym(dl_prog_handle, lbl + 1);
2022 # else
2023 if (NSIsSymbolNameDefined(lbl)) {
2024 NSSymbol symbol = NSLookupAndBindSymbol(lbl);
2025 return NSAddressOfSymbol(symbol);
2026 } else {
2027 return NULL;
2028 }
2029 # endif /* HAVE_DLFCN_H */
2030 # elif defined(OBJFORMAT_PEi386)
2031 void* sym;
2032
2033 sym = lookupSymbolInDLLs((unsigned char*)lbl);
2034 if (sym != NULL) { return sym; };
2035
2036 // Also try looking up the symbol without the @N suffix. Some
2037 // DLLs have the suffixes on their symbols, some don't.
2038 zapTrailingAtSign ( (unsigned char*)lbl );
2039 sym = lookupSymbolInDLLs((unsigned char*)lbl);
2040 if (sym != NULL) { return sym; };
2041 return NULL;
2042
2043 # else
2044 ASSERT(2+2 == 5);
2045 return NULL;
2046 # endif
2047 } else {
2048 IF_DEBUG(linker, debugBelch("lookupSymbol: value of %s is %p\n", lbl, val));
2049 return val;
2050 }
2051 }
2052
2053 /* -----------------------------------------------------------------------------
2054 Create a StablePtr for a foreign export. This is normally called by
2055 a C function with __attribute__((constructor)), which is generated
2056 by GHC and linked into the module.
2057
2058 If the object code is being loaded dynamically, then we remember
2059 which StablePtrs were allocated by the constructors and free them
2060 again in unloadObj().
2061 -------------------------------------------------------------------------- */
2062
2063 static ObjectCode *loading_obj = NULL;
2064
2065 StgStablePtr foreignExportStablePtr (StgPtr p)
2066 {
2067 ForeignExportStablePtr *fe_sptr;
2068 StgStablePtr *sptr;
2069
2070 sptr = getStablePtr(p);
2071
2072 if (loading_obj != NULL) {
2073 fe_sptr = stgMallocBytes(sizeof(ForeignExportStablePtr),
2074 "foreignExportStablePtr");
2075 fe_sptr->stable_ptr = sptr;
2076 fe_sptr->next = loading_obj->stable_ptrs;
2077 loading_obj->stable_ptrs = fe_sptr;
2078 }
2079
2080 return sptr;
2081 }
2082
2083
2084 /* -----------------------------------------------------------------------------
2085 * Debugging aid: look in GHCi's object symbol tables for symbols
2086 * within DELTA bytes of the specified address, and show their names.
2087 */
2088 #ifdef DEBUG
2089 void ghci_enquire ( char* addr );
2090
2091 void ghci_enquire ( char* addr )
2092 {
2093 int i;
2094 char* sym;
2095 char* a;
2096 const int DELTA = 64;
2097 ObjectCode* oc;
2098
2099 initLinker();
2100
2101 for (oc = objects; oc; oc = oc->next) {
2102 for (i = 0; i < oc->n_symbols; i++) {
2103 sym = oc->symbols[i];
2104 if (sym == NULL) continue;
2105 a = NULL;
2106 if (a == NULL) {
2107 ghciLookupSymbolTable(symhash, sym, (void **)&a);
2108 }
2109 if (a == NULL) {
2110 // debugBelch("ghci_enquire: can't find %s\n", sym);
2111 }
2112 else if (addr-DELTA <= a && a <= addr+DELTA) {
2113 debugBelch("%p + %3d == `%s'\n", addr, (int)(a - addr), sym);
2114 }
2115 }
2116 }
2117 }
2118 #endif
2119
2120 #ifdef USE_MMAP
2121 #define ROUND_UP(x,size) ((x + size - 1) & ~(size - 1))
2122
2123 static void *
2124 mmapForLinker (size_t bytes, nat flags, int fd)
2125 {
2126 void *map_addr = NULL;
2127 void *result;
2128 int pagesize, size;
2129 static nat fixed = 0;
2130
2131 IF_DEBUG(linker, debugBelch("mmapForLinker: start\n"));
2132 pagesize = getpagesize();
2133 size = ROUND_UP(bytes, pagesize);
2134
2135 #if !defined(ALWAYS_PIC) && defined(x86_64_HOST_ARCH)
2136 mmap_again:
2137
2138 if (mmap_32bit_base != 0) {
2139 map_addr = mmap_32bit_base;
2140 }
2141 #endif
2142
2143 IF_DEBUG(linker, debugBelch("mmapForLinker: \tprotection %#0x\n", PROT_EXEC | PROT_READ | PROT_WRITE));
2144 IF_DEBUG(linker, debugBelch("mmapForLinker: \tflags %#0x\n", MAP_PRIVATE | TRY_MAP_32BIT | fixed | flags));
2145 result = mmap(map_addr, size, PROT_EXEC|PROT_READ|PROT_WRITE,
2146 MAP_PRIVATE|TRY_MAP_32BIT|fixed|flags, fd, 0);
2147
2148 if (result == MAP_FAILED) {
2149 sysErrorBelch("mmap %" FMT_Word " bytes at %p",(W_)size,map_addr);
2150 errorBelch("Try specifying an address with +RTS -xm<addr> -RTS");
2151 stg_exit(EXIT_FAILURE);
2152 }
2153
2154 #if !defined(ALWAYS_PIC) && defined(x86_64_HOST_ARCH)
2155 if (mmap_32bit_base != 0) {
2156 if (result == map_addr) {
2157 mmap_32bit_base = (StgWord8*)map_addr + size;
2158 } else {
2159 if ((W_)result > 0x80000000) {
2160 // oops, we were given memory over 2Gb
2161 #if defined(freebsd_HOST_OS) || defined(kfreebsdgnu_HOST_OS) || defined(dragonfly_HOST_OS)
2162 // Some platforms require MAP_FIXED. This is normally
2163 // a bad idea, because MAP_FIXED will overwrite
2164 // existing mappings.
2165 munmap(result,size);
2166 fixed = MAP_FIXED;
2167 goto mmap_again;
2168 #else
2169 barf("loadObj: failed to mmap() memory below 2Gb; asked for %lu bytes at %p. Try specifying an address with +RTS -xm<addr> -RTS", size, map_addr, result);
2170 #endif
2171 } else {
2172 // hmm, we were given memory somewhere else, but it's
2173 // still under 2Gb so we can use it. Next time, ask
2174 // for memory right after the place we just got some
2175 mmap_32bit_base = (StgWord8*)result + size;
2176 }
2177 }
2178 } else {
2179 if ((W_)result > 0x80000000) {
2180 // oops, we were given memory over 2Gb
2181 // ... try allocating memory somewhere else?;
2182 debugTrace(DEBUG_linker,"MAP_32BIT didn't work; gave us %lu bytes at 0x%p", bytes, result);
2183 munmap(result, size);
2184
2185 // Set a base address and try again... (guess: 1Gb)
2186 mmap_32bit_base = (void*)0x40000000;
2187 goto mmap_again;
2188 }
2189 }
2190 #endif
2191
2192 IF_DEBUG(linker, debugBelch("mmapForLinker: mapped %" FMT_Word " bytes starting at %p\n", (W_)size, result));
2193 IF_DEBUG(linker, debugBelch("mmapForLinker: done\n"));
2194 return result;
2195 }
2196 #endif // USE_MMAP
2197
2198
2199 void freeObjectCode (ObjectCode *oc)
2200 {
2201 #ifdef USE_MMAP
2202 int pagesize, size, r;
2203
2204 pagesize = getpagesize();
2205 size = ROUND_UP(oc->fileSize, pagesize);
2206
2207 r = munmap(oc->image, size);
2208 if (r == -1) {
2209 sysErrorBelch("munmap");
2210 }
2211
2212 #if defined(powerpc_HOST_ARCH) || defined(x86_64_HOST_ARCH) || defined(arm_HOST_ARCH)
2213 #if !defined(x86_64_HOST_ARCH) || !defined(mingw32_HOST_OS)
2214 if (!USE_CONTIGUOUS_MMAP)
2215 {
2216 munmap(oc->symbol_extras,
2217 ROUND_UP(sizeof(SymbolExtra) * oc->n_symbol_extras, pagesize));
2218 }
2219 #endif
2220 #endif
2221
2222 #else
2223
2224 #ifndef mingw32_HOST_OS
2225 stgFree(oc->image);
2226 #else
2227 VirtualFree(oc->image - PEi386_IMAGE_OFFSET, 0, MEM_RELEASE);
2228
2229 IndirectAddr *ia, *ia_next;
2230 ia = indirects;
2231 while (ia != NULL) {
2232 ia_next = ia->next;
2233 stgFree(ia);
2234 ia = ia_next;
2235 }
2236
2237 #endif
2238
2239 #if defined(powerpc_HOST_ARCH) || defined(x86_64_HOST_ARCH) || defined(arm_HOST_ARCH)
2240 #if !defined(x86_64_HOST_ARCH) || !defined(mingw32_HOST_OS)
2241 stgFree(oc->symbol_extras);
2242 #endif
2243 #endif
2244
2245 #endif
2246
2247 stgFree(oc->fileName);
2248 stgFree(oc->archiveMemberName);
2249 stgFree(oc);
2250 }
2251
2252
2253 static ObjectCode*
2254 mkOc( pathchar *path, char *image, int imageSize,
2255 char *archiveMemberName
2256 #ifndef USE_MMAP
2257 #ifdef darwin_HOST_OS
2258 , int misalignment
2259 #endif
2260 #endif
2261 ) {
2262 ObjectCode* oc;
2263
2264 IF_DEBUG(linker, debugBelch("mkOc: start\n"));
2265 oc = stgMallocBytes(sizeof(ObjectCode), "loadArchive(oc)");
2266
2267 # if defined(OBJFORMAT_ELF)
2268 oc->formatName = "ELF";
2269 # elif defined(OBJFORMAT_PEi386)
2270 oc->formatName = "PEi386";
2271 # elif defined(OBJFORMAT_MACHO)
2272 oc->formatName = "Mach-O";
2273 # else
2274 stgFree(oc);
2275 barf("loadObj: not implemented on this platform");
2276 # endif
2277
2278 oc->image = image;
2279 oc->fileName = pathdup(path);
2280
2281 if (archiveMemberName) {
2282 oc->archiveMemberName = stgMallocBytes( strlen(archiveMemberName)+1, "loadObj" );
2283 strcpy(oc->archiveMemberName, archiveMemberName);
2284 }
2285 else {
2286 oc->archiveMemberName = NULL;
2287 }
2288
2289 oc->fileSize = imageSize;
2290 oc->symbols = NULL;
2291 oc->sections = NULL;
2292 oc->proddables = NULL;
2293 oc->stable_ptrs = NULL;
2294
2295 #ifndef USE_MMAP
2296 #ifdef darwin_HOST_OS
2297 oc->misalignment = misalignment;
2298 #endif
2299 #endif
2300
2301 /* chain it onto the list of objects */
2302 oc->next = objects;
2303 objects = oc;
2304
2305 IF_DEBUG(linker, debugBelch("mkOc: done\n"));
2306 return oc;
2307 }
2308
2309 /* -----------------------------------------------------------------------------
2310 * Check if an object or archive is already loaded.
2311 *
2312 * Returns: 1 if the path is already loaded, 0 otherwise.
2313 */
2314 static HsInt
2315 isAlreadyLoaded( pathchar *path )
2316 {
2317 ObjectCode *o;
2318 for (o = objects; o; o = o->next) {
2319 if (0 == pathcmp(o->fileName, path)) {
2320 return 1; /* already loaded */
2321 }
2322 }
2323 return 0; /* not loaded yet */
2324 }
2325
2326 HsInt
2327 loadArchive( pathchar *path )
2328 {
2329 ObjectCode* oc;
2330 char *image;
2331 int memberSize;
2332 FILE *f;
2333 int n;
2334 size_t thisFileNameSize;
2335 char *fileName;
2336 size_t fileNameSize;
2337 int isObject, isGnuIndex, isThin;
2338 char tmp[20];
2339 char *gnuFileIndex;
2340 int gnuFileIndexSize;
2341 #if defined(darwin_HOST_OS)
2342 int i;
2343 uint32_t nfat_arch, nfat_offset, cputype, cpusubtype;
2344 #if defined(i386_HOST_ARCH)
2345 const uint32_t mycputype = CPU_TYPE_X86;
2346 const uint32_t mycpusubtype = CPU_SUBTYPE_X86_ALL;
2347 #elif defined(x86_64_HOST_ARCH)
2348 const uint32_t mycputype = CPU_TYPE_X86_64;
2349 const uint32_t mycpusubtype = CPU_SUBTYPE_X86_64_ALL;
2350 #elif defined(powerpc_HOST_ARCH)
2351 const uint32_t mycputype = CPU_TYPE_POWERPC;
2352 const uint32_t mycpusubtype = CPU_SUBTYPE_POWERPC_ALL;
2353 #elif defined(powerpc64_HOST_ARCH)
2354 const uint32_t mycputype = CPU_TYPE_POWERPC64;
2355 const uint32_t mycpusubtype = CPU_SUBTYPE_POWERPC_ALL;
2356 #else
2357 #error Unknown Darwin architecture
2358 #endif
2359 #if !defined(USE_MMAP)
2360 int misalignment;
2361 #endif
2362 #endif
2363
2364 initLinker();
2365
2366 IF_DEBUG(linker, debugBelch("loadArchive: start\n"));
2367 IF_DEBUG(linker, debugBelch("loadArchive: Loading archive `%" PATH_FMT" '\n", path));
2368
2369 /* Check that we haven't already loaded this archive.
2370 Ignore requests to load multiple times */
2371 if (isAlreadyLoaded(path)) {
2372 IF_DEBUG(linker,
2373 debugBelch("ignoring repeated load of %" PATH_FMT "\n", path));
2374 return 1; /* success */
2375 }
2376
2377 gnuFileIndex = NULL;
2378 gnuFileIndexSize = 0;
2379
2380 fileNameSize = 32;
2381 fileName = stgMallocBytes(fileNameSize, "loadArchive(fileName)");
2382
2383 isThin = 0;
2384
2385 f = pathopen(path, WSTR("rb"));
2386 if (!f)
2387 barf("loadObj: can't read `%s'", path);
2388
2389 /* Check if this is an archive by looking for the magic "!<arch>\n"
2390 * string. Usually, if this fails, we barf and quit. On Darwin however,
2391 * we may have a fat archive, which contains archives for more than
2392 * one architecture. Fat archives start with the magic number 0xcafebabe,
2393 * always stored big endian. If we find a fat_header, we scan through
2394 * the fat_arch structs, searching through for one for our host
2395 * architecture. If a matching struct is found, we read the offset
2396 * of our archive data (nfat_offset) and seek forward nfat_offset bytes
2397 * from the start of the file.
2398 *
2399 * A subtlety is that all of the members of the fat_header and fat_arch
2400 * structs are stored big endian, so we need to call byte order
2401 * conversion functions.
2402 *
2403 * If we find the appropriate architecture in a fat archive, we gobble
2404 * its magic "!<arch>\n" string and continue processing just as if
2405 * we had a single architecture archive.
2406 */
2407
2408 n = fread ( tmp, 1, 8, f );
2409 if (n != 8)
2410 barf("loadArchive: Failed reading header from `%s'", path);
2411 if (strncmp(tmp, "!<arch>\n", 8) == 0) {}
2412 #if !defined(mingw32_HOST_OS)
2413 /* See Note [thin archives on Windows] */
2414 else if (strncmp(tmp, "!<thin>\n", 8) == 0) {
2415 isThin = 1;
2416 }
2417 #endif
2418 #if defined(darwin_HOST_OS)
2419 /* Not a standard archive, look for a fat archive magic number: */
2420 else if (ntohl(*(uint32_t *)tmp) == FAT_MAGIC) {
2421 nfat_arch = ntohl(*(uint32_t *)(tmp + 4));
2422 IF_DEBUG(linker, debugBelch("loadArchive: found a fat archive containing %d architectures\n", nfat_arch));
2423 nfat_offset = 0;
2424
2425 for (i = 0; i < (int)nfat_arch; i++) {
2426 /* search for the right arch */
2427 n = fread( tmp, 1, 20, f );
2428 if (n != 8)
2429 barf("loadArchive: Failed reading arch from `%s'", path);
2430 cputype = ntohl(*(uint32_t *)tmp);
2431 cpusubtype = ntohl(*(uint32_t *)(tmp + 4));
2432
2433 if (cputype == mycputype && cpusubtype == mycpusubtype) {
2434 IF_DEBUG(linker, debugBelch("loadArchive: found my archive in a fat archive\n"));
2435 nfat_offset = ntohl(*(uint32_t *)(tmp + 8));
2436 break;
2437 }
2438 }
2439
2440 if (nfat_offset == 0) {
2441 barf ("loadArchive: searched %d architectures, but no host arch found", (int)nfat_arch);
2442 }
2443 else {
2444 n = fseek( f, nfat_offset, SEEK_SET );
2445 if (n != 0)
2446 barf("loadArchive: Failed to seek to arch in `%s'", path);
2447 n = fread ( tmp, 1, 8, f );
2448 if (n != 8)
2449 barf("loadArchive: Failed reading header from `%s'", path);
2450 if (strncmp(tmp, "!<arch>\n", 8) != 0) {
2451 barf("loadArchive: couldn't find archive in `%s' at offset %d", path, nfat_offset);
2452 }
2453 }
2454 }
2455 else {
2456 barf("loadArchive: Neither an archive, nor a fat archive: `%s'", path);
2457 }
2458 #else
2459 else {
2460 barf("loadArchive: Not an archive: `%s'", path);
2461 }
2462 #endif
2463
2464 IF_DEBUG(linker, debugBelch("loadArchive: loading archive contents\n"));
2465
2466 while(1) {
2467 n = fread ( fileName, 1, 16, f );
2468 if (n != 16) {
2469 if (feof(f)) {
2470 IF_DEBUG(linker, debugBelch("loadArchive: EOF while reading from '%" PATH_FMT "'\n", path));
2471 break;
2472 }
2473 else {
2474 barf("loadArchive: Failed reading file name from `%s'", path);
2475 }
2476 }
2477
2478 #if defined(darwin_HOST_OS)
2479 if (strncmp(fileName, "!<arch>\n", 8) == 0) {
2480 IF_DEBUG(linker, debugBelch("loadArchive: found the start of another archive, breaking\n"));
2481 break;
2482 }
2483 #endif
2484
2485 n = fread ( tmp, 1, 12, f );
2486 if (n != 12)
2487 barf("loadArchive: Failed reading mod time from `%s'", path);
2488 n = fread ( tmp, 1, 6, f );
2489 if (n != 6)
2490 barf("loadArchive: Failed reading owner from `%s'", path);
2491 n = fread ( tmp, 1, 6, f );
2492 if (n != 6)
2493 barf("loadArchive: Failed reading group from `%s'", path);
2494 n = fread ( tmp, 1, 8, f );
2495 if (n != 8)
2496 barf("loadArchive: Failed reading mode from `%s'", path);
2497 n = fread ( tmp, 1, 10, f );
2498 if (n != 10)
2499 barf("loadArchive: Failed reading size from `%s'", path);
2500 tmp[10] = '\0';
2501 for (n = 0; isdigit(tmp[n]); n++);
2502 tmp[n] = '\0';
2503 memberSize = atoi(tmp);
2504
2505 IF_DEBUG(linker, debugBelch("loadArchive: size of this archive member is %d\n", memberSize));
2506 n = fread ( tmp, 1, 2, f );
2507 if (n != 2)
2508 barf("loadArchive: Failed reading magic from `%s'", path);
2509 if (strncmp(tmp, "\x60\x0A", 2) != 0)
2510 barf("loadArchive: Failed reading magic from `%s' at %ld. Got %c%c",
2511 path, ftell(f), tmp[0], tmp[1]);
2512
2513 isGnuIndex = 0;
2514 /* Check for BSD-variant large filenames */
2515 if (0 == strncmp(fileName, "#1/", 3)) {
2516 fileName[16] = '\0';
2517 if (isdigit(fileName[3])) {
2518 for (n = 4; isdigit(fileName[n]); n++);
2519 fileName[n] = '\0';
2520 thisFileNameSize = atoi(fileName + 3);
2521 memberSize -= thisFileNameSize;
2522 if (thisFileNameSize >= fileNameSize) {
2523 /* Double it to avoid potentially continually
2524 increasing it by 1 */
2525 fileNameSize = thisFileNameSize * 2;
2526 fileName = stgReallocBytes(fileName, fileNameSize, "loadArchive(fileName)");
2527 }
2528 n = fread ( fileName, 1, thisFileNameSize, f );
2529 if (n != (int)thisFileNameSize) {
2530 barf("loadArchive: Failed reading filename from `%s'",
2531 path);
2532 }
2533 fileName[thisFileNameSize] = 0;
2534
2535 /* On OS X at least, thisFileNameSize is the size of the
2536 fileName field, not the length of the fileName
2537 itself. */
2538 thisFileNameSize = strlen(fileName);
2539 }
2540 else {
2541 barf("loadArchive: BSD-variant filename size not found while reading filename from `%s'", path);
2542 }
2543 }
2544 /* Check for GNU file index file */
2545 else if (0 == strncmp(fileName, "//", 2)) {
2546 fileName[0] = '\0';
2547 thisFileNameSize = 0;
2548 isGnuIndex = 1;
2549 }
2550 /* Check for a file in the GNU file index */
2551 else if (fileName[0] == '/') {
2552 if (isdigit(fileName[1])) {
2553 int i;
2554
2555 for (n = 2; isdigit(fileName[n]); n++);
2556 fileName[n] = '\0';
2557 n = atoi(fileName + 1);
2558
2559 if (gnuFileIndex == NULL) {
2560 barf("loadArchive: GNU-variant filename without an index while reading from `%s'", path);
2561 }
2562 if (n < 0 || n > gnuFileIndexSize) {
2563 barf("loadArchive: GNU-variant filename offset %d out of range [0..%d] while reading filename from `%s'", n, gnuFileIndexSize, path);
2564 }
2565 if (n != 0 && gnuFileIndex[n - 1] != '\n') {
2566 barf("loadArchive: GNU-variant filename offset %d invalid (range [0..%d]) while reading filename from `%s'", n, gnuFileIndexSize, path);
2567 }
2568 for (i = n; gnuFileIndex[i] != '\n'; i++);
2569 thisFileNameSize = i - n - 1;
2570 if (thisFileNameSize >= fileNameSize) {
2571 /* Double it to avoid potentially continually
2572 increasing it by 1 */
2573 fileNameSize = thisFileNameSize * 2;
2574 fileName = stgReallocBytes(fileName, fileNameSize, "loadArchive(fileName)");
2575 }
2576 memcpy(fileName, gnuFileIndex + n, thisFileNameSize);
2577 fileName[thisFileNameSize] = '\0';
2578 }
2579 else if (fileName[1] == ' ') {
2580 fileName[0] = '\0';
2581 thisFileNameSize = 0;
2582 }
2583 else {
2584 barf("loadArchive: GNU-variant filename offset not found while reading filename from `%s'", path);
2585 }
2586 }
2587 /* Finally, the case where the filename field actually contains
2588 the filename */
2589 else {
2590 /* GNU ar terminates filenames with a '/', this allowing
2591 spaces in filenames. So first look to see if there is a
2592 terminating '/'. */
2593 for (thisFileNameSize = 0;
2594 thisFileNameSize < 16;
2595 thisFileNameSize++) {
2596 if (fileName[thisFileNameSize] == '/') {
2597 fileName[thisFileNameSize] = '\0';
2598 break;
2599 }
2600 }
2601 /* If we didn't find a '/', then a space teminates the
2602 filename. Note that if we don't find one, then
2603 thisFileNameSize ends up as 16, and we already have the
2604 '\0' at the end. */
2605 if (thisFileNameSize == 16) {
2606 for (thisFileNameSize = 0;
2607 thisFileNameSize < 16;
2608 thisFileNameSize++) {
2609 if (fileName[thisFileNameSize] == ' ') {
2610 fileName[thisFileNameSize] = '\0';
2611 break;
2612 }
2613 }
2614 }
2615 }
2616
2617 IF_DEBUG(linker,
2618 debugBelch("loadArchive: Found member file `%s'\n", fileName));
2619
2620 isObject = thisFileNameSize >= 2
2621 && fileName[thisFileNameSize - 2] == '.'
2622 && fileName[thisFileNameSize - 1] == 'o';
2623
2624 IF_DEBUG(linker, debugBelch("loadArchive: \tthisFileNameSize = %d\n", (int)thisFileNameSize));
2625 IF_DEBUG(linker, debugBelch("loadArchive: \tisObject = %d\n", isObject));
2626
2627 if (isObject) {
2628 char *archiveMemberName;
2629
2630 IF_DEBUG(linker, debugBelch("loadArchive: Member is an object file...loading...\n"));
2631
2632 /* We can't mmap from the archive directly, as object
2633 files need to be 8-byte aligned but files in .ar
2634 archives are 2-byte aligned. When possible we use mmap
2635 to get some anonymous memory, as on 64-bit platforms if
2636 we use malloc then we can be given memory above 2^32.
2637 In the mmap case we're probably wasting lots of space;
2638 we could do better. */
2639 #if defined(USE_MMAP)
2640 image = mmapForLinker(memberSize, MAP_ANONYMOUS, -1);
2641 #elif defined(mingw32_HOST_OS)
2642 // TODO: We would like to use allocateExec here, but allocateExec
2643 // cannot currently allocate blocks large enough.
2644 image = allocateImageAndTrampolines(
2645 #if defined(x86_64_HOST_ARCH)
2646 f, path, fileName,
2647 #endif
2648 memberSize);
2649 #elif defined(darwin_HOST_OS)
2650 /* See loadObj() */
2651 misalignment = machoGetMisalignment(f);
2652 image = stgMallocBytes(memberSize + misalignment, "loadArchive(image)");
2653 image += misalignment;
2654 #else
2655 image = stgMallocBytes(memberSize, "loadArchive(image)");
2656 #endif
2657
2658 #if !defined(mingw32_HOST_OS)
2659 /*
2660 * Note [thin archives on Windows]
2661 * This doesn't compile on Windows because it assumes
2662 * char* pathnames, and we use wchar_t* on Windows. It's
2663 * not trivial to fix, so I'm leaving it disabled on
2664 * Windows for now --SDM
2665 */
2666 if (isThin) {
2667 FILE *member;
2668 char *pathCopy, *dirName, *memberPath;
2669
2670 /* Allocate and setup the dirname of the archive. We'll need
2671 this to locate the thin member */
2672 pathCopy = stgMallocBytes(strlen(path) + 1, "loadArchive(file)");
2673 strcpy(pathCopy, path);
2674 dirName = dirname(pathCopy);
2675
2676 /* Append the relative member name to the dirname. This should be
2677 be the full path to the actual thin member. */
2678 memberPath = stgMallocBytes(
2679 strlen(path) + 1 + strlen(fileName) + 1, "loadArchive(file)");
2680 strcpy(memberPath, dirName);
2681 memberPath[strlen(dirName)] = '/';
2682 strcpy(memberPath + strlen(dirName) + 1, fileName);
2683
2684 member = pathopen(memberPath, WSTR("rb"));
2685 if (!member)
2686 barf("loadObj: can't read `%s'", path);
2687
2688 n = fread ( image, 1, memberSize, member );
2689 if (n != memberSize) {
2690 barf("loadArchive: error whilst reading `%s'", fileName);
2691 }
2692
2693 fclose(member);
2694 stgFree(memberPath);
2695 stgFree(pathCopy);
2696 }
2697 else
2698 #endif
2699 {
2700 n = fread ( image, 1, memberSize, f );
2701 if (n != memberSize) {
2702 barf("loadArchive: error whilst reading `%s'", path);
2703 }
2704 }
2705
2706 archiveMemberName = stgMallocBytes(pathlen(path) + thisFileNameSize + 3,
2707 "loadArchive(file)");
2708 sprintf(archiveMemberName, "%" PATH_FMT "(%.*s)",
2709 path, (int)thisFileNameSize, fileName);
2710
2711 oc = mkOc(path, image, memberSize, archiveMemberName
2712 #ifndef USE_MMAP
2713 #ifdef darwin_HOST_OS
2714 , misalignment
2715 #endif
2716 #endif
2717 );
2718
2719 stgFree(archiveMemberName);
2720
2721 if (0 == loadOc(oc)) {
2722 stgFree(fileName);
2723 fclose(f);
2724 return 0;
2725 }
2726 }
2727 else if (isGnuIndex) {
2728 if (gnuFileIndex != NULL) {
2729 barf("loadArchive: GNU-variant index found, but already have an index, while reading filename from `%s'", path);
2730 }
2731 IF_DEBUG(linker, debugBelch("loadArchive: Found GNU-variant file index\n"));
2732 #ifdef USE_MMAP
2733 gnuFileIndex = mmapForLinker(memberSize + 1, MAP_ANONYMOUS, -1);
2734 #else
2735 gnuFileIndex = stgMallocBytes(memberSize + 1, "loadArchive(image)");
2736 #endif
2737 n = fread ( gnuFileIndex, 1, memberSize, f );
2738 if (n != memberSize) {
2739 barf("loadArchive: error whilst reading `%s'", path);
2740 }
2741 gnuFileIndex[memberSize] = '/';
2742 gnuFileIndexSize = memberSize;
2743 }
2744 else {
2745 IF_DEBUG(linker, debugBelch("loadArchive: '%s' does not appear to be an object file\n", fileName));
2746 if (!isThin || thisFileNameSize == 0) {
2747 n = fseek(f, memberSize, SEEK_CUR);
2748 if (n != 0)
2749 barf("loadArchive: error whilst seeking by %d in `%s'",
2750 memberSize, path);
2751 }
2752 }
2753
2754 /* .ar files are 2-byte aligned */
2755 if (!(isThin && thisFileNameSize > 0) && memberSize % 2) {
2756 IF_DEBUG(linker, debugBelch("loadArchive: trying to read one pad byte\n"));
2757 n = fread ( tmp, 1, 1, f );
2758 if (n != 1) {
2759 if (feof(f)) {
2760 IF_DEBUG(linker, debugBelch("loadArchive: found EOF while reading one pad byte\n"));
2761 break;
2762 }
2763 else {
2764 barf("loadArchive: Failed reading padding from `%s'", path);
2765 }
2766 }
2767 IF_DEBUG(linker, debugBelch("loadArchive: successfully read one pad byte\n"));
2768 }
2769 IF_DEBUG(linker, debugBelch("loadArchive: reached end of archive loading while loop\n"));
2770 }
2771
2772 fclose(f);
2773
2774 stgFree(fileName);
2775 if (gnuFileIndex != NULL) {
2776 #ifdef USE_MMAP
2777 munmap(gnuFileIndex, gnuFileIndexSize + 1);
2778 #else
2779 stgFree(gnuFileIndex);
2780 #endif
2781 }
2782
2783 IF_DEBUG(linker, debugBelch("loadArchive: done\n"));
2784 return 1;
2785 }
2786
2787 /* -----------------------------------------------------------------------------
2788 * Load an obj (populate the global symbol table, but don't resolve yet)
2789 *
2790 * Returns: 1 if ok, 0 on error.
2791 */
2792 HsInt
2793 loadObj( pathchar *path )
2794 {
2795 ObjectCode* oc;
2796 char *image;
2797 int fileSize;
2798 struct_stat st;
2799 int r;
2800 #ifdef USE_MMAP
2801 int fd;
2802 #else
2803 FILE *f;
2804 # if defined(darwin_HOST_OS)
2805 int misalignment;
2806 # endif
2807 #endif
2808 IF_DEBUG(linker, debugBelch("loadObj %" PATH_FMT "\n", path));
2809
2810 initLinker();
2811
2812 /* debugBelch("loadObj %s\n", path ); */
2813
2814 /* Check that we haven't already loaded this object.
2815 Ignore requests to load multiple times */
2816
2817 if (isAlreadyLoaded(path)) {
2818 IF_DEBUG(linker,
2819 debugBelch("ignoring repeated load of %" PATH_FMT "\n", path));
2820 return 1; /* success */
2821 }
2822
2823 r = pathstat(path, &st);
2824 if (r == -1) {
2825 IF_DEBUG(linker, debugBelch("File doesn't exist\n"));
2826 return 0;
2827 }
2828
2829 fileSize = st.st_size;
2830
2831 #ifdef USE_MMAP
2832 /* On many architectures malloc'd memory isn't executable, so we need to use mmap. */
2833
2834 #if defined(openbsd_HOST_OS)
2835 /* coverity[toctou] */
2836 fd = open(path, O_RDONLY, S_IRUSR);
2837 #else
2838 /* coverity[toctou] */
2839 fd = open(path, O_RDONLY);
2840 #endif
2841 if (fd == -1)
2842 barf("loadObj: can't open `%s'", path);
2843
2844 image = mmapForLinker(fileSize, 0, fd);
2845
2846 close(fd);
2847
2848 #else /* !USE_MMAP */
2849 /* load the image into memory */
2850 /* coverity[toctou] */
2851 f = pathopen(path, WSTR("rb"));
2852 if (!f)
2853 barf("loadObj: can't read `%" PATH_FMT "'", path);
2854
2855 # if defined(mingw32_HOST_OS)
2856 // TODO: We would like to use allocateExec here, but allocateExec
2857 // cannot currently allocate blocks large enough.
2858 image = allocateImageAndTrampolines(
2859 #if defined(x86_64_HOST_ARCH)
2860 f, path, "itself",
2861 #endif
2862 fileSize);
2863 # elif defined(darwin_HOST_OS)
2864 // In a Mach-O .o file, all sections can and will be misaligned
2865 // if the total size of the headers is not a multiple of the
2866 // desired alignment. This is fine for .o files that only serve
2867 // as input for the static linker, but it's not fine for us,
2868 // as SSE (used by gcc for floating point) and Altivec require
2869 // 16-byte alignment.
2870 // We calculate the correct alignment from the header before
2871 // reading the file, and then we misalign image on purpose so
2872 // that the actual sections end up aligned again.
2873 misalignment = machoGetMisalignment(f);
2874 image = stgMallocBytes(fileSize + misalignment, "loadObj(image)");
2875 image += misalignment;
2876 # else
2877 image = stgMallocBytes(fileSize, "loadObj(image)");
2878 # endif
2879
2880 {
2881 int n;
2882 n = fread ( image, 1, fileSize, f );
2883 if (n != fileSize)
2884 barf("loadObj: error whilst reading `%s'", path);
2885 }
2886 fclose(f);
2887 #endif /* USE_MMAP */
2888
2889 oc = mkOc(path, image, fileSize, NULL
2890 #ifndef USE_MMAP
2891 #ifdef darwin_HOST_OS
2892 , misalignment
2893 #endif
2894 #endif
2895 );
2896
2897 return loadOc(oc);
2898 }
2899
2900 static HsInt
2901 loadOc( ObjectCode* oc ) {
2902 int r;
2903
2904 IF_DEBUG(linker, debugBelch("loadOc: start\n"));
2905
2906 # if defined(OBJFORMAT_MACHO) && (defined(powerpc_HOST_ARCH) || defined(x86_64_HOST_ARCH))
2907 r = ocAllocateSymbolExtras_MachO ( oc );
2908 if (!r) {
2909 IF_DEBUG(linker, debugBelch("loadOc: ocAllocateSymbolExtras_MachO failed\n"));
2910 return r;
2911 }
2912 # elif defined(OBJFORMAT_ELF) && (defined(powerpc_HOST_ARCH) || defined(x86_64_HOST_ARCH) || defined(arm_HOST_ARCH))
2913 r = ocAllocateSymbolExtras_ELF ( oc );
2914 if (!r) {
2915 IF_DEBUG(linker, debugBelch("loadOc: ocAllocateSymbolExtras_ELF failed\n"));
2916 return r;
2917 }
2918 # elif defined(OBJFORMAT_PEi386) && defined(x86_64_HOST_ARCH)
2919 ocAllocateSymbolExtras_PEi386 ( oc );
2920 #endif
2921
2922 /* verify the in-memory image */
2923 # if defined(OBJFORMAT_ELF)
2924 r = ocVerifyImage_ELF ( oc );
2925 # elif defined(OBJFORMAT_PEi386)
2926 r = ocVerifyImage_PEi386 ( oc );
2927 # elif defined(OBJFORMAT_MACHO)
2928 r = ocVerifyImage_MachO ( oc );
2929 # else
2930 barf("loadObj: no verify method");
2931 # endif
2932 if (!r) {
2933 IF_DEBUG(linker, debugBelch("loadOc: ocVerifyImage_* failed\n"));
2934 return r;
2935 }
2936
2937 /* build the symbol list for this image */
2938 # if defined(OBJFORMAT_ELF)
2939 r = ocGetNames_ELF ( oc );
2940 # elif defined(OBJFORMAT_PEi386)
2941 r = ocGetNames_PEi386 ( oc );
2942 # elif defined(OBJFORMAT_MACHO)
2943 r = ocGetNames_MachO ( oc );
2944 # else
2945 barf("loadObj: no getNames method");
2946 # endif
2947 if (!r) {
2948 IF_DEBUG(linker, debugBelch("loadOc: ocGetNames_* failed\n"));
2949 return r;
2950 }
2951
2952 /* loaded, but not resolved yet */
2953 oc->status = OBJECT_LOADED;
2954 IF_DEBUG(linker, debugBelch("loadOc: done.\n"));
2955
2956 return 1;
2957 }
2958
2959 /* -----------------------------------------------------------------------------
2960 * resolve all the currently unlinked objects in memory
2961 *
2962 * Returns: 1 if ok, 0 on error.
2963 */
2964 HsInt
2965 resolveObjs( void )
2966 {
2967 ObjectCode *oc;
2968 int r;
2969
2970 IF_DEBUG(linker, debugBelch("resolveObjs: start\n"));
2971 initLinker();
2972
2973 for (oc = objects; oc; oc = oc->next) {
2974 if (oc->status != OBJECT_RESOLVED) {
2975 # if defined(OBJFORMAT_ELF)
2976 r = ocResolve_ELF ( oc );
2977 # elif defined(OBJFORMAT_PEi386)
2978 r = ocResolve_PEi386 ( oc );
2979 # elif defined(OBJFORMAT_MACHO)
2980 r = ocResolve_MachO ( oc );
2981 # else
2982 barf("resolveObjs: not implemented on this platform");
2983 # endif
2984 if (!r) { return r; }
2985
2986 // run init/init_array/ctors/mod_init_func
2987
2988 loading_obj = oc; // tells foreignExportStablePtr what to do
2989 #if defined(OBJFORMAT_ELF)
2990 r = ocRunInit_ELF ( oc );
2991 #elif defined(OBJFORMAT_PEi386)
2992 r = ocRunInit_PEi386 ( oc );
2993 #elif defined(OBJFORMAT_MACHO)
2994 r = ocRunInit_MachO ( oc );
2995 #else
2996 barf("resolveObjs: initializers not implemented on this platform");
2997 #endif
2998 loading_obj = NULL;
2999
3000 if (!r) { return r; }
3001
3002 oc->status = OBJECT_RESOLVED;
3003 }
3004 }
3005 IF_DEBUG(linker, debugBelch("resolveObjs: done\n"));
3006 return 1;
3007 }
3008
3009 /* -----------------------------------------------------------------------------
3010 * delete an object from the pool
3011 */
3012 HsInt
3013 unloadObj( pathchar *path )
3014 {
3015 ObjectCode *oc, *prev, *next;
3016 HsBool unloadedAnyObj = HS_BOOL_FALSE;
3017
3018 ASSERT(symhash != NULL);
3019 ASSERT(objects != NULL);
3020
3021 initLinker();
3022
3023 IF_DEBUG(linker, debugBelch("unloadObj: %" PATH_FMT "\n", path));
3024
3025 prev = NULL;
3026 for (oc = objects; oc; oc = next) {
3027 next = oc->next; // oc might be freed
3028
3029 if (!pathcmp(oc->fileName,path)) {
3030
3031 /* Remove all the mappings for the symbols within this
3032 * object..
3033 */
3034 {
3035 int i;
3036 for (i = 0; i < oc->n_symbols; i++) {
3037 if (oc->symbols[i] != NULL) {
3038 ghciRemoveSymbolTable(symhash, oc->symbols[i], oc);
3039 }
3040 }
3041 }
3042
3043 if (prev == NULL) {
3044 objects = oc->next;
3045 } else {
3046 prev->next = oc->next;
3047 }
3048 oc->next = unloaded_objects;
3049 unloaded_objects = oc;
3050
3051 // The data itself and a few other bits (oc->fileName,
3052 // oc->archiveMemberName) are kept until freeObjectCode(),
3053 // which is only called when it has been determined that
3054 // it is safe to unload the object.
3055 stgFree(oc->symbols);
3056
3057 {
3058 Section *s, *nexts;
3059
3060 for (s = oc->sections; s != NULL; s = nexts) {
3061 nexts = s->next;
3062 stgFree(s);
3063 }
3064 }
3065
3066 freeProddableBlocks(oc);
3067
3068 // Release any StablePtrs that were created when this
3069 // object module was initialized.
3070 {
3071 ForeignExportStablePtr *fe_ptr, *next;
3072
3073 for (fe_ptr = oc->stable_ptrs; fe_ptr != NULL; fe_ptr = next) {
3074 next = fe_ptr->next;
3075 freeStablePtr(fe_ptr->stable_ptr);
3076 stgFree(fe_ptr);
3077 }
3078 }
3079
3080 oc->status = OBJECT_UNLOADED;
3081
3082 /* This could be a member of an archive so continue
3083 * unloading other members. */
3084 unloadedAnyObj = HS_BOOL_TRUE;
3085 } else {
3086 prev = oc;
3087 }
3088 }
3089
3090 if (unloadedAnyObj) {
3091 return 1;
3092 }
3093 else {
3094 errorBelch("unloadObj: can't find `%" PATH_FMT "' to unload", path);
3095 return 0;
3096 }
3097 }
3098
3099 /* -----------------------------------------------------------------------------
3100 * Sanity checking. For each ObjectCode, maintain a list of address ranges
3101 * which may be prodded during relocation, and abort if we try and write
3102 * outside any of these.
3103 */
3104 static void
3105 addProddableBlock ( ObjectCode* oc, void* start, int size )
3106 {
3107 ProddableBlock* pb
3108 = stgMallocBytes(sizeof(ProddableBlock), "addProddableBlock");
3109
3110 IF_DEBUG(linker, debugBelch("addProddableBlock: %p %p %d\n", oc, start, size));
3111 ASSERT(size > 0);
3112 pb->start = start;
3113 pb->size = size;
3114 pb->next = oc->proddables;
3115 oc->proddables = pb;
3116 }
3117
3118 static void
3119 checkProddableBlock (ObjectCode *oc, void *addr, size_t size )
3120 {
3121 ProddableBlock* pb;
3122
3123 for (pb = oc->proddables; pb != NULL; pb = pb->next) {
3124 char* s = (char*)(pb->start);
3125 char* e = s + pb->size;
3126 char* a = (char*)addr;
3127 if (a >= s && (a+size) <= e) return;
3128 }
3129 barf("checkProddableBlock: invalid fixup in runtime linker: %p", addr);
3130 }
3131
3132 static void freeProddableBlocks (ObjectCode *oc)
3133 {
3134 ProddableBlock *pb, *next;
3135
3136 for (pb = oc->proddables; pb != NULL; pb = next) {
3137 next = pb->next;
3138 stgFree(pb);
3139 }
3140 oc->proddables = NULL;
3141 }
3142
3143 /* -----------------------------------------------------------------------------
3144 * Section management.
3145 */
3146 static void
3147 addSection ( ObjectCode* oc, SectionKind kind,
3148 void* start, void* end )
3149 {
3150 Section* s = stgMallocBytes(sizeof(Section), "addSection");
3151 s->start = start;
3152 s->end = end;
3153 s->kind = kind;
3154 s->next = oc->sections;
3155 oc->sections = s;
3156
3157 IF_DEBUG(linker, debugBelch("addSection: %p-%p (size %lld), kind %d\n",
3158 start, ((char*)end)-1, ((long long)(size_t)end) - ((long long)(size_t)start) + 1, kind ));
3159 }
3160
3161
3162 /* --------------------------------------------------------------------------
3163 * Symbol Extras.
3164 * This is about allocating a small chunk of memory for every symbol in the
3165 * object file. We make sure that the SymboLExtras are always "in range" of
3166 * limited-range PC-relative instructions on various platforms by allocating
3167 * them right next to the object code itself.
3168 */
3169
3170 #if defined(powerpc_HOST_ARCH) || defined(x86_64_HOST_ARCH) || defined(arm_HOST_ARCH)
3171 #if !defined(x86_64_HOST_ARCH) || !defined(mingw32_HOST_OS)
3172
3173 /*
3174 ocAllocateSymbolExtras
3175
3176 Allocate additional space at the end of the object file image to make room
3177 for jump islands (powerpc, x86_64, arm) and GOT entries (x86_64).
3178
3179 PowerPC relative branch instructions have a 24 bit displacement field.
3180 As PPC code is always 4-byte-aligned, this yields a +-32MB range.
3181 If a particular imported symbol is outside this range, we have to redirect
3182 the jump to a short piece of new code that just loads the 32bit absolute
3183 address and jumps there.
3184 On x86_64, PC-relative jumps and PC-relative accesses to the GOT are limited
3185 to 32 bits (+-2GB).
3186
3187 This function just allocates space for one SymbolExtra for every
3188 undefined symbol in the object file. The code for the jump islands is
3189 filled in by makeSymbolExtra below.
3190 */
3191
3192 static int ocAllocateSymbolExtras( ObjectCode* oc, int count, int first )
3193 {
3194 #ifdef USE_MMAP
3195 int pagesize, n, m;
3196 #endif
3197 int aligned;
3198 #ifndef USE_MMAP
3199 int misalignment = 0;
3200 #ifdef darwin_HOST_OS
3201 misalignment = oc->misalignment;
3202 #endif
3203 #endif
3204
3205 if( count > 0 )
3206 {
3207 // round up to the nearest 4
3208 aligned = (oc->fileSize + 3) & ~3;
3209
3210 #ifdef USE_MMAP
3211 pagesize = getpagesize();
3212 n = ROUND_UP( oc->fileSize, pagesize );
3213 m = ROUND_UP( aligned + sizeof (SymbolExtra) * count, pagesize );
3214
3215 /* we try to use spare space at the end of the last page of the
3216 * image for the jump islands, but if there isn't enough space
3217 * then we have to map some (anonymously, remembering MAP_32BIT).
3218 */
3219 if( m > n ) // we need to allocate more pages
3220 {
3221 if (USE_CONTIGUOUS_MMAP)
3222 {
3223 /* Keep image and symbol_extras contiguous */
3224 void *new = mmapForLinker(n + (sizeof(SymbolExtra) * count),
3225 MAP_ANONYMOUS, -1);
3226 if (new)
3227 {
3228 memcpy(new, oc->image, oc->fileSize);
3229 munmap(oc->image, n);
3230 oc->image = new;
3231 oc->fileSize = n + (sizeof(SymbolExtra) * count);
3232 oc->symbol_extras = (SymbolExtra *) (oc->image + n);
3233 }
3234 else
3235 oc->symbol_extras = NULL;
3236 }
3237 else
3238 {
3239 oc->symbol_extras = mmapForLinker(sizeof(SymbolExtra) * count,
3240 MAP_ANONYMOUS, -1);
3241 }
3242 }
3243 else
3244 {
3245 oc->symbol_extras = (SymbolExtra *) (oc->image + aligned);
3246 }
3247 #else
3248 oc->image -= misalignment;
3249 oc->image = stgReallocBytes( oc->image,
3250 misalignment +
3251 aligned + sizeof (SymbolExtra) * count,
3252 "ocAllocateSymbolExtras" );
3253 oc->image += misalignment;
3254
3255 oc->symbol_extras = (SymbolExtra *) (oc->image + aligned);
3256 #endif /* USE_MMAP */
3257
3258 memset( oc->symbol_extras, 0, sizeof (SymbolExtra) * count );
3259 }
3260 else
3261 oc->symbol_extras = NULL;
3262
3263 oc->first_symbol_extra = first;
3264 oc->n_symbol_extras = count;
3265
3266 return 1;
3267 }
3268
3269 #endif
3270 #endif // defined(powerpc_HOST_ARCH) || defined(x86_64_HOST_ARCH) || defined(arm_HOST_ARCH)
3271
3272 #if defined(arm_HOST_ARCH)
3273
3274 static void
3275 ocFlushInstructionCache( ObjectCode *oc )
3276 {
3277 // Object code
3278 __clear_cache(oc->image, oc->image + oc->fileSize);
3279 // Jump islands
3280 __clear_cache(oc->symbol_extras, &oc->symbol_extras[oc->n_symbol_extras]);
3281 }
3282
3283 #endif
3284
3285 #if defined(powerpc_HOST_ARCH) || defined(x86_64_HOST_ARCH)
3286 #if !defined(x86_64_HOST_ARCH) || !defined(mingw32_HOST_OS)
3287
3288 static SymbolExtra* makeSymbolExtra( ObjectCode* oc,
3289 unsigned long symbolNumber,
3290 unsigned long target )
3291 {
3292 SymbolExtra *extra;
3293
3294 ASSERT( symbolNumber >= oc->first_symbol_extra
3295 && symbolNumber - oc->first_symbol_extra < oc->n_symbol_extras);
3296
3297 extra = &oc->symbol_extras[symbolNumber - oc->first_symbol_extra];
3298
3299 #ifdef powerpc_HOST_ARCH
3300 // lis r12, hi16(target)
3301 extra->jumpIsland.lis_r12 = 0x3d80;
3302 extra->jumpIsland.hi_addr = target >> 16;
3303
3304 // ori r12, r12, lo16(target)
3305 extra->jumpIsland.ori_r12_r12 = 0x618c;
3306 extra->jumpIsland.lo_addr = target & 0xffff;
3307
3308 // mtctr r12
3309 extra->jumpIsland.mtctr_r12 = 0x7d8903a6;
3310
3311 // bctr
3312 extra->jumpIsland.bctr = 0x4e800420;
3313 #endif
3314 #ifdef x86_64_HOST_ARCH
3315 // jmp *-14(%rip)
3316 static uint8_t jmp[] = { 0xFF, 0x25, 0xF2, 0xFF, 0xFF, 0xFF };
3317 extra->addr = target;
3318 memcpy(extra->jumpIsland, jmp, 6);
3319 #endif
3320
3321 return extra;
3322 }
3323
3324 #endif
3325 #endif // defined(powerpc_HOST_ARCH) || defined(x86_64_HOST_ARCH)
3326
3327 #ifdef arm_HOST_ARCH
3328 static SymbolExtra* makeArmSymbolExtra( ObjectCode* oc,
3329 unsigned long symbolNumber,
3330 unsigned long target,
3331 int fromThumb,
3332 int toThumb )
3333 {
3334 SymbolExtra *extra;
3335
3336 ASSERT( symbolNumber >= oc->first_symbol_extra
3337 && symbolNumber - oc->first_symbol_extra < oc->n_symbol_extras);
3338
3339 extra = &oc->symbol_extras[symbolNumber - oc->first_symbol_extra];
3340
3341 // Make sure instruction mode bit is set properly
3342 if (toThumb)
3343 target |= 1;
3344 else
3345 target &= ~1;
3346
3347 if (!fromThumb) {
3348 // In ARM encoding:
3349 // movw r12, #0
3350 // movt r12, #0
3351 // bx r12
3352 uint32_t code[] = { 0xe300c000, 0xe340c000, 0xe12fff1c };
3353
3354 // Patch lower half-word into movw
3355 code[0] |= ((target>>12) & 0xf) << 16;
3356 code[0] |= target & 0xfff;
3357 // Patch upper half-word into movt
3358 target >>= 16;
3359 code[1] |= ((target>>12) & 0xf) << 16;
3360 code[1] |= target & 0xfff;
3361
3362 memcpy(extra->jumpIsland, code, 12);
3363
3364 } else {
3365 // In Thumb encoding:
3366 // movw r12, #0
3367 // movt r12, #0
3368 // bx r12
3369 uint16_t code[] = { 0xf240, 0x0c00,
3370 0xf2c0, 0x0c00,
3371 0x4760 };
3372
3373 // Patch lower half-word into movw
3374 code[0] |= (target>>12) & 0xf;
3375 code[0] |= ((target>>11) & 0x1) << 10;
3376 code[1] |= ((target>>8) & 0x7) << 12;
3377 code[1] |= target & 0xff;
3378 // Patch upper half-word into movt
3379 target >>= 16;
3380 code[2] |= (target>>12) & 0xf;
3381 code[2] |= ((target>>11) & 0x1) << 10;
3382 code[3] |= ((target>>8) & 0x7) << 12;
3383 code[3] |= target & 0xff;
3384
3385 memcpy(extra->jumpIsland, code, 10);
3386 }
3387
3388 return extra;
3389 }
3390 #endif // arm_HOST_ARCH
3391
3392 /* --------------------------------------------------------------------------
3393 * PowerPC specifics (instruction cache flushing)
3394 * ------------------------------------------------------------------------*/
3395
3396 #ifdef powerpc_HOST_ARCH
3397 /*
3398 ocFlushInstructionCache
3399
3400 Flush the data & instruction caches.
3401 Because the PPC has split data/instruction caches, we have to
3402 do that whenever we modify code at runtime.
3403 */
3404
3405 static void
3406 ocFlushInstructionCacheFrom(void* begin, size_t length)
3407 {
3408 size_t n = (length + 3) / 4;
3409 unsigned long* p = begin;
3410
3411 while (n--)
3412 {
3413 __asm__ volatile ( "dcbf 0,%0\n\t"
3414 "sync\n\t"
3415 "icbi 0,%0"
3416 :
3417 : "r" (p)
3418 );
3419 p++;
3420 }
3421 __asm__ volatile ( "sync\n\t"
3422 "isync"
3423 );
3424 }
3425
3426 static void
3427 ocFlushInstructionCache( ObjectCode *oc )
3428 {
3429 /* The main object code */
3430 ocFlushInstructionCacheFrom(oc->image
3431 #ifdef darwin_HOST_OS
3432 + oc->misalignment
3433 #endif
3434 , oc->fileSize);
3435
3436 /* Jump Islands */
3437 ocFlushInstructionCacheFrom(oc->symbol_extras, sizeof(SymbolExtra) * oc->n_symbol_extras);
3438 }
3439 #endif /* powerpc_HOST_ARCH */
3440
3441
3442 /* --------------------------------------------------------------------------
3443 * PEi386 specifics (Win32 targets)
3444 * ------------------------------------------------------------------------*/
3445
3446 /* The information for this linker comes from
3447 Microsoft Portable Executable
3448 and Common Object File Format Specification
3449 revision 5.1 January 1998
3450 which SimonM says comes from the MS Developer Network CDs.
3451
3452 It can be found there (on older CDs), but can also be found
3453 online at:
3454
3455 http://www.microsoft.com/hwdev/hardware/PECOFF.asp
3456
3457 (this is Rev 6.0 from February 1999).
3458
3459 Things move, so if that fails, try searching for it via
3460
3461 http://www.google.com/search?q=PE+COFF+specification
3462
3463 The ultimate reference for the PE format is the Winnt.h
3464 header file that comes with the Platform SDKs; as always,
3465 implementations will drift wrt their documentation.
3466
3467 A good background article on the PE format is Matt Pietrek's
3468 March 1994 article in Microsoft System Journal (MSJ)
3469 (Vol.9, No. 3): "Peering Inside the PE: A Tour of the
3470 Win32 Portable Executable File Format." The info in there
3471 has recently been updated in a two part article in
3472 MSDN magazine, issues Feb and March 2002,
3473 "Inside Windows: An In-Depth Look into the Win32 Portable
3474 Executable File Format"
3475
3476 John Levine's book "Linkers and Loaders" contains useful
3477 info on PE too.
3478 */
3479
3480
3481 #if defined(OBJFORMAT_PEi386)
3482
3483
3484
3485 typedef unsigned char UChar;
3486 typedef unsigned short UInt16;
3487 typedef unsigned int UInt32;
3488 typedef int Int32;
3489 typedef unsigned long long int UInt64;
3490
3491
3492 typedef
3493 struct {
3494 UInt16 Machine;
3495 UInt16 NumberOfSections;
3496 UInt32 TimeDateStamp;
3497 UInt32 PointerToSymbolTable;
3498 UInt32 NumberOfSymbols;
3499 UInt16 SizeOfOptionalHeader;
3500 UInt16 Characteristics;
3501 }
3502 COFF_header;
3503
3504 #define sizeof_COFF_header 20
3505
3506
3507 typedef
3508 struct {
3509 UChar Name[8];
3510 UInt32 VirtualSize;
3511 UInt32 VirtualAddress;
3512 UInt32 SizeOfRawData;
3513 UInt32 PointerToRawData;
3514 UInt32 PointerToRelocations;
3515 UInt32 PointerToLinenumbers;
3516 UInt16 NumberOfRelocations;
3517 UInt16 NumberOfLineNumbers;
3518 UInt32 Characteristics;
3519 }
3520 COFF_section;
3521
3522 #define sizeof_COFF_section 40
3523
3524
3525 typedef
3526 struct {
3527 UChar Name[8];
3528 UInt32 Value;
3529 UInt16 SectionNumber;
3530 UInt16 Type;
3531 UChar StorageClass;
3532 UChar NumberOfAuxSymbols;
3533 }
3534 COFF_symbol;
3535
3536 #define sizeof_COFF_symbol 18
3537
3538
3539 typedef
3540 struct {
3541 UInt32 VirtualAddress;
3542 UInt32 SymbolTableIndex;
3543 UInt16 Type;
3544 }
3545 COFF_reloc;
3546
3547 #define sizeof_COFF_reloc 10
3548
3549
3550 /* From PE spec doc, section 3.3.2 */
3551 /* Note use of MYIMAGE_* since IMAGE_* are already defined in
3552 windows.h -- for the same purpose, but I want to know what I'm
3553 getting, here. */
3554 #define MYIMAGE_FILE_RELOCS_STRIPPED 0x0001
3555 #define MYIMAGE_FILE_EXECUTABLE_IMAGE 0x0002
3556 #define MYIMAGE_FILE_DLL 0x2000
3557 #define MYIMAGE_FILE_SYSTEM 0x1000
3558 #define MYIMAGE_FILE_BYTES_REVERSED_HI 0x8000
3559 #define MYIMAGE_FILE_BYTES_REVERSED_LO 0x0080
3560 #define MYIMAGE_FILE_32BIT_MACHINE 0x0100
3561
3562 /* From PE spec doc, section 5.4.2 and 5.4.4 */
3563 #define MYIMAGE_SYM_CLASS_EXTERNAL 2
3564 #define MYIMAGE_SYM_CLASS_STATIC 3
3565 #define MYIMAGE_SYM_UNDEFINED 0
3566
3567 /* From PE spec doc, section 4.1 */
3568 #define MYIMAGE_SCN_CNT_CODE 0x00000020
3569 #define MYIMAGE_SCN_CNT_INITIALIZED_DATA 0x00000040
3570 #define MYIMAGE_SCN_LNK_NRELOC_OVFL 0x01000000
3571
3572 /* From PE spec doc, section 5.2.1 */
3573 #define MYIMAGE_REL_I386_DIR32 0x0006
3574 #define MYIMAGE_REL_I386_REL32 0x0014
3575
3576 /* We assume file pointer is right at the
3577 beginning of COFF object.
3578 */
3579 static char *
3580 allocateImageAndTrampolines (
3581 #if defined(x86_64_HOST_ARCH)
3582 FILE* f, pathchar* arch_name, char* member_name,
3583 #endif
3584 int size )
3585 {
3586 char* image;
3587 #if defined(x86_64_HOST_ARCH)
3588 /* PeCoff contains number of symbols right in it's header, so
3589 we can reserve the room for symbolExtras right here. */
3590 COFF_header hdr;
3591 size_t n;
3592
3593 n = fread ( &hdr, 1, sizeof_COFF_header, f );
3594 if (n != sizeof( COFF_header ))
3595 barf("getNumberOfSymbols: error whilst reading `%s' header in `%S'",
3596 member_name, arch_name);
3597 fseek( f, -sizeof_COFF_header, SEEK_CUR );
3598
3599 /* We get back 8-byte aligned memory (is that guaranteed?), but
3600 the offsets to the sections within the file are all 4 mod 8
3601 (is that guaranteed?). We therefore need to offset the image
3602 by 4, so that all the pointers are 8-byte aligned, so that
3603 pointer tagging works. */
3604 /* For 32-bit case we don't need this, hence we use macro PEi386_IMAGE_OFFSET,
3605 which equals to 4 for 64-bit case and 0 for 32-bit case. */
3606 /* We allocate trampolines area for all symbols right behind
3607 image data, aligned on 8. */
3608 size = ((PEi386_IMAGE_OFFSET + size + 0x7) & ~0x7)
3609 + hdr.NumberOfSymbols * sizeof(SymbolExtra);
3610 #endif
3611 image = VirtualAlloc(NULL, size,
3612 MEM_RESERVE | MEM_COMMIT,
3613 PAGE_EXECUTE_READWRITE);
3614 return image + PEi386_IMAGE_OFFSET;
3615 }
3616
3617 /* We use myindex to calculate array addresses, rather than
3618 simply doing the normal subscript thing. That's because
3619 some of the above structs have sizes which are not
3620 a whole number of words. GCC rounds their sizes up to a
3621 whole number of words, which means that the address calcs
3622 arising from using normal C indexing or pointer arithmetic
3623 are just plain wrong. Sigh.
3624 */
3625 static UChar *
3626 myindex ( int scale, void* base, int index )
3627 {
3628 return
3629 ((UChar*)base) + scale * index;
3630 }
3631
3632
3633 static void
3634 printName ( UChar* name, UChar* strtab )
3635 {
3636 if (name[0]==0 && name[1]==0 && name[2]==0 && name[3]==0) {
3637 UInt32 strtab_offset = * (UInt32*)(name+4);
3638 debugBelch("%s", strtab + strtab_offset );
3639 } else {
3640 int i;
3641 for (i = 0; i < 8; i++) {
3642 if (name[i] == 0) break;
3643 debugBelch("%c", name[i] );
3644 }
3645 }
3646 }
3647
3648
3649 static void
3650 copyName ( UChar* name, UChar* strtab, UChar* dst, int dstSize )
3651 {
3652 if (name[0]==0 && name[1]==0 && name[2]==0 && name[3]==0) {
3653 UInt32 strtab_offset = * (UInt32*)(name+4);
3654 strncpy ( (char*)dst, (char*)strtab+strtab_offset, dstSize );
3655 dst[dstSize-1] = 0;
3656 } else {
3657 int i = 0;
3658 while (1) {
3659 if (i >= 8) break;
3660 if (name[i] == 0) break;
3661 dst[i] = name[i];
3662 i++;
3663 }
3664 dst[i] = 0;
3665 }
3666 }
3667
3668
3669 static UChar *
3670 cstring_from_COFF_symbol_name ( UChar* name, UChar* strtab )
3671 {
3672 UChar* newstr;
3673 /* If the string is longer than 8 bytes, look in the
3674 string table for it -- this will be correctly zero terminated.
3675 */
3676 if (name[0]==0 && name[1]==0 && name[2]==0 && name[3]==0) {
3677 UInt32 strtab_offset = * (UInt32*)(name+4);
3678 return ((UChar*)strtab) + strtab_offset;
3679 }
3680 /* Otherwise, if shorter than 8 bytes, return the original,
3681 which by defn is correctly terminated.
3682 */
3683 if (name[7]==0) return name;
3684 /* The annoying case: 8 bytes. Copy into a temporary
3685 (XXX which is never freed ...)
3686 */
3687 newstr = stgMallocBytes(9, "cstring_from_COFF_symbol_name");
3688 ASSERT(newstr);
3689 strncpy((char*)newstr,(char*)name,8);
3690 newstr[8] = 0;
3691 return newstr;
3692 }
3693
3694 /* Getting the name of a section is mildly tricky, so we make a
3695 function for it. Sadly, in one case we have to copy the string
3696 (when it is exactly 8 bytes long there's no trailing '\0'), so for
3697 consistency we *always* copy the string; the caller must free it
3698 */
3699 static char *
3700 cstring_from_section_name (UChar* name, UChar* strtab)
3701 {
3702 char *newstr;
3703
3704 if (name[0]=='/') {
3705 int strtab_offset = strtol((char*)name+1,NULL,10);
3706 int len = strlen(((char*)strtab) + strtab_offset);
3707
3708 newstr = stgMallocBytes(len+1, "cstring_from_section_symbol_name");
3709 strcpy((char*)newstr, (char*)((UChar*)strtab) + strtab_offset);
3710 return newstr;
3711 }
3712 else
3713 {
3714 newstr = stgMallocBytes(9, "cstring_from_section_symbol_name");
3715 ASSERT(newstr);
3716 strncpy((char*)newstr,(char*)name,8);
3717 newstr[8] = 0;
3718 return newstr;
3719 }
3720 }
3721
3722 /* Just compares the short names (first 8 chars) */
3723 static COFF_section *
3724 findPEi386SectionCalled ( ObjectCode* oc, UChar* name, UChar* strtab )
3725 {
3726 int i;
3727 rtsBool long_name = rtsFalse;
3728 COFF_header* hdr
3729 = (COFF_header*)(oc->image);
3730 COFF_section* sectab
3731 = (COFF_section*) (
3732 ((UChar*)(oc->image))
3733 + sizeof_COFF_header + hdr->SizeOfOptionalHeader
3734 );
3735 // String is longer than 8 bytes, swap in the proper
3736 // (NULL-terminated) version, and make a note that this
3737 // is a long name.
3738 if (name[0]==0 && name[1]==0 && name[2]==0 && name[3]==0) {
3739 UInt32 strtab_offset = * (UInt32*)(name+4);
3740 name = ((UChar*)strtab) + strtab_offset;
3741 long_name = rtsTrue;
3742 }
3743 for (i = 0; i < hdr->NumberOfSections; i++) {
3744 UChar* n1;
3745 UChar* n2;
3746 COFF_section* section_i
3747 = (COFF_section*)
3748 myindex ( sizeof_COFF_section, sectab, i );
3749 n1 = (UChar*) &(section_i->Name);
3750 n2 = name;
3751 // Long section names are prefixed with a slash, see
3752 // also cstring_from_section_name
3753 if (n1[0] == '/' && long_name) {
3754 // Long name check
3755 // We don't really want to make an assumption that the string
3756 // table indexes are the same, so we'll do a proper check.
3757 int n1_strtab_offset = strtol((char*)n1+1,NULL,10);
3758 n1 = (UChar*) (((char*)strtab) + n1_strtab_offset);
3759 if (0==strcmp((const char*)n1, (const char*)n2)) {
3760 return section_i;
3761 }
3762 } else if (n1[0] != '/' && !long_name) {
3763 // Short name check
3764 if (n1[0]==n2[0] && n1[1]==n2[1] && n1[2]==n2[2] &&
3765 n1[3]==n2[3] && n1[4]==n2[4] && n1[5]==n2[5] &&
3766 n1[6]==n2[6] && n1[7]==n2[7]) {
3767 return section_i;
3768 }
3769 } else {
3770 // guaranteed to mismatch, because we never attempt to link
3771 // in an executable where the section name may be truncated
3772 }
3773 }
3774
3775 return NULL;
3776 }
3777
3778 static void
3779 zapTrailingAtSign ( UChar* sym )
3780 {
3781 # define my_isdigit(c) ((c) >= '0' && (c) <= '9')
3782 int i, j;
3783 if (sym[0] == 0) return;
3784 i = 0;
3785 while (sym[i] != 0) i++;
3786 i--;
3787 j = i;
3788 while (j > 0 && my_isdigit(sym[j])) j--;
3789 if (j > 0 && sym[j] == '@' && j != i) sym[j] = 0;
3790 # undef my_isdigit
3791 }
3792
3793 static void *
3794 lookupSymbolInDLLs ( UChar *lbl )
3795 {
3796 OpenedDLL* o_dll;
3797 void *sym;
3798
3799 for (o_dll = opened_dlls; o_dll != NULL; o_dll = o_dll->next) {
3800 /* debugBelch("look in %s for %s\n", o_dll->name, lbl); */
3801
3802 if (lbl[0] == '_') {
3803 /* HACK: if the name has an initial underscore, try stripping
3804 it off & look that up first. I've yet to verify whether there's
3805 a Rule that governs whether an initial '_' *should always* be
3806 stripped off when mapping from import lib name to the DLL name.
3807 */
3808 sym = GetProcAddress(o_dll->instance, (char*)(lbl+1));
3809 if (sym != NULL) {
3810 /*debugBelch("found %s in %s\n", lbl+1,o_dll->name);*/
3811 return sym;
3812 }
3813 }
3814
3815 /* Ticket #2283.
3816 Long description: http://support.microsoft.com/kb/132044
3817 tl;dr:
3818 If C/C++ compiler sees __declspec(dllimport) ... foo ...
3819 it generates call *__imp_foo, and __imp_foo here has exactly
3820 the same semantics as in __imp_foo = GetProcAddress(..., "foo")
3821 */
3822 if (sym == NULL && strncmp ((const char*)lbl, "__imp_", 6) == 0) {
3823 sym = GetProcAddress(o_dll->instance, (char*)(lbl+6));
3824 if (sym != NULL) {
3825 IndirectAddr* ret;
3826 ret = stgMallocBytes( sizeof(IndirectAddr), "lookupSymbolInDLLs" );
3827 ret->addr = sym;
3828 ret->next = indirects;
3829 indirects = ret;
3830 errorBelch("warning: %s from %S is linked instead of %s",
3831 (char*)(lbl+6), o_dll->name, (char*)lbl);
3832 return (void*) & ret->addr;
3833 }
3834 }
3835
3836 sym = GetProcAddress(o_dll->instance, (char*)lbl);
3837 if (sym != NULL) {
3838 /*debugBelch("found %s in %s\n", lbl,o_dll->name);*/
3839 return sym;
3840 }
3841 }
3842 return NULL;
3843 }
3844
3845
3846 static int
3847 ocVerifyImage_PEi386 ( ObjectCode* oc )
3848 {
3849 int i;
3850 UInt32 j, noRelocs;
3851 COFF_header* hdr;
3852 COFF_section* sectab;
3853 COFF_symbol* symtab;
3854 UChar* strtab;
3855 /* debugBelch("\nLOADING %s\n", oc->fileName); */
3856 hdr = (COFF_header*)(oc->image);
3857 sectab = (COFF_section*) (
3858 ((UChar*)(oc->image))
3859 + sizeof_COFF_header + hdr->SizeOfOptionalHeader
3860 );
3861 symtab = (COFF_symbol*) (
3862 ((UChar*)(oc->image))
3863 + hdr->PointerToSymbolTable
3864 );
3865 strtab = ((UChar*)symtab)
3866 + hdr->NumberOfSymbols * sizeof_COFF_symbol;
3867
3868 #if defined(i386_HOST_ARCH)
3869 if (hdr->Machine != 0x14c) {
3870 errorBelch("%" PATH_FMT ": Not x86 PEi386", oc->fileName);
3871 return 0;
3872 }
3873 #elif defined(x86_64_HOST_ARCH)
3874 if (hdr->Machine != 0x8664) {
3875 errorBelch("%" PATH_FMT ": Not x86_64 PEi386", oc->fileName);
3876 return 0;
3877 }
3878 #else
3879 errorBelch("PEi386 not supported on this arch");
3880 #endif
3881
3882 if (hdr->SizeOfOptionalHeader != 0) {
3883 errorBelch("%" PATH_FMT ": PEi386 with nonempty optional header", oc->fileName);
3884 return 0;
3885 }
3886 if ( /* (hdr->Characteristics & MYIMAGE_FILE_RELOCS_STRIPPED) || */
3887 (hdr->Characteristics & MYIMAGE_FILE_EXECUTABLE_IMAGE) ||
3888 (hdr->Characteristics & MYIMAGE_FILE_DLL) ||
3889 (hdr->Characteristics & MYIMAGE_FILE_SYSTEM) ) {
3890 errorBelch("%" PATH_FMT ": Not a PEi386 object file", oc->fileName);
3891 return 0;
3892 }
3893 if ( (hdr->Characteristics & MYIMAGE_FILE_BYTES_REVERSED_HI)
3894 /* || !(hdr->Characteristics & MYIMAGE_FILE_32BIT_MACHINE) */ ) {
3895 errorBelch("%" PATH_FMT ": Invalid PEi386 word size or endiannness: %d",
3896 oc->fileName,
3897 (int)(hdr->Characteristics));
3898 return 0;
3899 }
3900 /* If the string table size is way crazy, this might indicate that
3901 there are more than 64k relocations, despite claims to the
3902 contrary. Hence this test. */
3903 /* debugBelch("strtab size %d\n", * (UInt32*)strtab); */
3904 #if 0
3905 if ( (*(UInt32*)strtab) > 600000 ) {
3906 /* Note that 600k has no special significance other than being
3907 big enough to handle the almost-2MB-sized lumps that
3908 constitute HSwin32*.o. */
3909 debugBelch("PEi386 object has suspiciously large string table; > 64k relocs?");
3910 return 0;
3911 }
3912 #endif
3913
3914 /* No further verification after this point; only debug printing. */
3915 i = 0;
3916 IF_DEBUG(linker, i=1);
3917 if (i == 0) return 1;
3918
3919 debugBelch( "sectab offset = %" FMT_Int "\n", ((UChar*)sectab) - ((UChar*)hdr) );
3920 debugBelch( "symtab offset = %" FMT_Int "\n", ((UChar*)symtab) - ((UChar*)hdr) );
3921 debugBelch( "strtab offset = %" FMT_Int "\n", ((UChar*)strtab) - ((UChar*)hdr) );
3922
3923 debugBelch("\n" );
3924 debugBelch( "Machine: 0x%x\n", (UInt32)(hdr->Machine) );
3925 debugBelch( "# sections: %d\n", (UInt32)(hdr->NumberOfSections) );
3926 debugBelch( "time/date: 0x%x\n", (UInt32)(hdr->TimeDateStamp) );
3927 debugBelch( "symtab offset: %d\n", (UInt32)(hdr->PointerToSymbolTable) );
3928 debugBelch( "# symbols: %d\n", (UInt32)(hdr->NumberOfSymbols) );
3929 debugBelch( "sz of opt hdr: %d\n", (UInt32)(hdr->SizeOfOptionalHeader) );
3930 debugBelch( "characteristics: 0x%x\n", (UInt32)(hdr->Characteristics) );
3931
3932 /* Print the section table. */
3933 debugBelch("\n" );
3934 for (i = 0; i < hdr->NumberOfSections; i++) {
3935 COFF_reloc* reltab;
3936 COFF_section* sectab_i
3937 = (COFF_section*)
3938 myindex ( sizeof_COFF_section, sectab, i );
3939 debugBelch(
3940 "\n"
3941 "section %d\n"
3942 " name `",
3943 i
3944 );
3945 printName ( sectab_i->Name, strtab );
3946 debugBelch(
3947 "'\n"
3948 " vsize %d\n"
3949 " vaddr %d\n"
3950 " data sz %d\n"
3951 " data off %d\n"
3952 " num rel %d\n"
3953 " off rel %d\n"
3954 " ptr raw 0x%x\n",
3955 sectab_i->VirtualSize,
3956 sectab_i->VirtualAddress,
3957 sectab_i->SizeOfRawData,
3958 sectab_i->PointerToRawData,
3959 sectab_i->NumberOfRelocations,
3960 sectab_i->PointerToRelocations,
3961 sectab_i->PointerToRawData
3962 );
3963 reltab = (COFF_reloc*) (
3964 ((UChar*)(oc->image)) + sectab_i->PointerToRelocations
3965 );
3966
3967 if ( sectab_i->Characteristics & MYIMAGE_SCN_LNK_NRELOC_OVFL ) {
3968 /* If the relocation field (a short) has overflowed, the
3969 * real count can be found in the first reloc entry.
3970 *
3971 * See Section 4.1 (last para) of the PE spec (rev6.0).
3972 */
3973 COFF_reloc* rel = (COFF_reloc*)
3974 myindex ( sizeof_COFF_reloc, reltab, 0 );
3975 noRelocs = rel->VirtualAddress;
3976 j = 1;
3977 } else {
3978 noRelocs = sectab_i->NumberOfRelocations;
3979 j = 0;
3980 }
3981
3982 for (; j < noRelocs; j++) {
3983 COFF_symbol* sym;
3984 COFF_reloc* rel = (COFF_reloc*)
3985 myindex ( sizeof_COFF_reloc, reltab, j );
3986 debugBelch(
3987 " type 0x%-4x vaddr 0x%-8x name `",
3988 (UInt32)rel->Type,
3989 rel->VirtualAddress );
3990 sym = (COFF_symbol*)
3991 myindex ( sizeof_COFF_symbol, symtab, rel->SymbolTableIndex );
3992 /* Hmm..mysterious looking offset - what's it for? SOF */
3993 printName ( sym->Name, strtab -10 );
3994 debugBelch("'\n" );
3995 }
3996
3997 debugBelch("\n" );
3998 }
3999 debugBelch("\n" );
4000 debugBelch("string table has size 0x%x\n", * (UInt32*)strtab );
4001 debugBelch("---START of string table---\n");
4002 for (i = 4; i < *(Int32*)strtab; i++) {
4003 if (strtab[i] == 0)
4004 debugBelch("\n"); else
4005 debugBelch("%c", strtab[i] );
4006 }
4007 debugBelch("--- END of string table---\n");
4008
4009 debugBelch("\n" );
4010 i = 0;
4011 while (1) {
4012 COFF_symbol* symtab_i;
4013 if (i >= (Int32)(hdr->NumberOfSymbols)) break;
4014 symtab_i = (COFF_symbol*)
4015 myindex ( sizeof_COFF_symbol, symtab, i );
4016 debugBelch(
4017 "symbol %d\n"
4018 " name `",
4019 i
4020 );
4021 printName ( symtab_i->Name, strtab );
4022 debugBelch(
4023 "'\n"
4024 " value 0x%x\n"
4025 " 1+sec# %d\n"
4026 " type 0x%x\n"
4027 " sclass 0x%x\n"
4028 " nAux %d\n",