Linker.c 219 KB
Newer Older
1 2
/* -----------------------------------------------------------------------------
 *
3
 * (c) The GHC Team, 2000-2004
4 5 6 7 8
 *
 * RTS Object Linker
 *
 * ---------------------------------------------------------------------------*/

sof's avatar
sof committed
9
#if 0
10
#include "PosixSource.h"
sof's avatar
sof committed
11
#endif
12

13
/* Linux needs _GNU_SOURCE to get RTLD_DEFAULT from <dlfcn.h> and
14 15
   MREMAP_MAYMOVE from <sys/mman.h>.
 */
16 17
#if defined(__linux__)  || defined(__GLIBC__)
#define _GNU_SOURCE 1
18 19
#endif

20 21
#include "Rts.h"
#include "HsFFI.h"
Simon Marlow's avatar
Simon Marlow committed
22 23

#include "sm/Storage.h"
Simon Marlow's avatar
Simon Marlow committed
24
#include "Stats.h"
25
#include "Hash.h"
26
#include "LinkerInternals.h"
27
#include "RtsUtils.h"
28
#include "Trace.h"
Simon Marlow's avatar
Simon Marlow committed
29 30 31 32 33 34
#include "StgPrimFloat.h" // for __int_encodeFloat etc.
#include "Stable.h"

#if !defined(mingw32_HOST_OS)
#include "posix/Signals.h"
#endif
35

Simon Marlow's avatar
Simon Marlow committed
36 37 38
// get protos for is*()
#include <ctype.h>

39
#ifdef HAVE_SYS_TYPES_H
40
#include <sys/types.h>
41 42
#endif

Ian Lynagh's avatar
Ian Lynagh committed
43
#include <inttypes.h>
44 45
#include <stdlib.h>
#include <string.h>
46 47
#include <stdio.h>
#include <assert.h>
48

49
#ifdef HAVE_SYS_STAT_H
50
#include <sys/stat.h>
51
#endif
52

53
#if defined(HAVE_DLFCN_H)
54
#include <dlfcn.h>
55
#endif
56

57
#if defined(cygwin32_HOST_OS)
sof's avatar
sof committed
58 59 60 61 62 63 64 65 66 67 68 69 70 71 72
#ifdef HAVE_DIRENT_H
#include <dirent.h>
#endif

#ifdef HAVE_SYS_TIME_H
#include <sys/time.h>
#endif
#include <regex.h>
#include <sys/fcntl.h>
#include <sys/termios.h>
#include <sys/utime.h>
#include <sys/utsname.h>
#include <sys/wait.h>
#endif

73 74 75 76 77 78
#if !defined(powerpc_HOST_ARCH) && \
    (   defined(linux_HOST_OS    ) || defined(freebsd_HOST_OS) || \
        defined(dragonfly_HOST_OS) || defined(netbsd_HOST_OS ) || \
        defined(openbsd_HOST_OS  ) || defined(darwin_HOST_OS ) || \
        defined(kfreebsdgnu_HOST_OS) )
/* Don't use mmap on powerpc_HOST_ARCH as mmap doesn't support
79 80 81 82
 * reallocating but we need to allocate jump islands just after each
 * object images. Otherwise relative branches to jump islands can fail
 * due to 24-bits displacement overflow.
 */
83 84 85
#define USE_MMAP
#include <fcntl.h>
#include <sys/mman.h>
dons's avatar
dons committed
86 87 88 89 90

#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif

91 92
#endif

93
#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)
94
#  define OBJFORMAT_ELF
Ian Lynagh's avatar
Ian Lynagh committed
95 96
#  include <regex.h>    // regex is already used by dlopen() so this is OK
                        // to use here without requiring an additional lib
97
#elif defined(cygwin32_HOST_OS) || defined (mingw32_HOST_OS)
98
#  define OBJFORMAT_PEi386
99
#  include <windows.h>
sof's avatar
sof committed
100
#  include <math.h>
101
#elif defined(darwin_HOST_OS)
102
#  define OBJFORMAT_MACHO
103
#  include <regex.h>
Ian Lynagh's avatar
Ian Lynagh committed
104 105
#  include <mach/machine.h>
#  include <mach-o/fat.h>
106 107 108
#  include <mach-o/loader.h>
#  include <mach-o/nlist.h>
#  include <mach-o/reloc.h>
109
#if !defined(HAVE_DLFCN_H)
110
#  include <mach-o/dyld.h>
111
#endif
112 113 114
#if defined(powerpc_HOST_ARCH)
#  include <mach-o/ppc/reloc.h>
#endif
115 116 117
#if defined(x86_64_HOST_ARCH)
#  include <mach-o/x86_64/reloc.h>
#endif
118 119
#endif

120 121 122 123
#if defined(x86_64_HOST_ARCH) && defined(darwin_HOST_OS)
#define ALWAYS_PIC
#endif

124
/* Hash table mapping symbol names to Symbol */
125
static /*Str*/HashTable *symhash;
126

127 128 129
/* Hash table mapping symbol names to StgStablePtr */
static /*Str*/HashTable *stablehash;

130
/* List of currently loaded objects */
Ian Lynagh's avatar
Ian Lynagh committed
131
ObjectCode *objects = NULL;     /* initially empty */
132

133
static HsInt loadOc( ObjectCode* oc );
134
static ObjectCode* mkOc( pathchar *path, char *image, int imageSize,
135
                         char *archiveMemberName
136 137 138 139 140 141 142
#ifndef USE_MMAP
#ifdef darwin_HOST_OS
                       , int misalignment
#endif
#endif
                       );

143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176
// Use wchar_t for pathnames on Windows (#5697)
#if defined(mingw32_HOST_OS)
#define pathcmp wcscmp
#define pathlen wcslen
#define pathopen _wfopen
#define pathstat _wstat
#define struct_stat struct _stat
#define open wopen
#define WSTR(s) L##s
#define PATH_FMT "S"
#else
#define pathcmp strcmp
#define pathlen strlen
#define pathopen fopen
#define pathstat stat
#define struct_stat struct stat
#define WSTR(s) s
#define PATH_FMT "s"
#endif

static pathchar* pathdup(pathchar *path)
{
    pathchar *ret;
#if defined(mingw32_HOST_OS)
    ret = wcsdup(path);
#else
    /* sigh, strdup() isn't a POSIX function, so do it the long way */
    ret = stgMallocBytes( strlen(path)+1, "loadObj" );
    strcpy(ret, path);
#endif
    return ret;
}


177
#if defined(OBJFORMAT_ELF)
178 179 180
static int ocVerifyImage_ELF    ( ObjectCode* oc );
static int ocGetNames_ELF       ( ObjectCode* oc );
static int ocResolve_ELF        ( ObjectCode* oc );
Ben Gamari's avatar
Ben Gamari committed
181
#if defined(powerpc_HOST_ARCH) || defined(x86_64_HOST_ARCH) || defined(arm_HOST_ARCH)
182
static int ocAllocateSymbolExtras_ELF ( ObjectCode* oc );
183
#endif
184
#elif defined(OBJFORMAT_PEi386)
185 186 187
static int ocVerifyImage_PEi386 ( ObjectCode* oc );
static int ocGetNames_PEi386    ( ObjectCode* oc );
static int ocResolve_PEi386     ( ObjectCode* oc );
188 189
static void *lookupSymbolInDLLs ( unsigned char *lbl );
static void zapTrailingAtSign   ( unsigned char *sym );
190 191 192 193
#elif defined(OBJFORMAT_MACHO)
static int ocVerifyImage_MachO    ( ObjectCode* oc );
static int ocGetNames_MachO       ( ObjectCode* oc );
static int ocResolve_MachO        ( ObjectCode* oc );
194

Ian Lynagh's avatar
Ian Lynagh committed
195
#ifndef USE_MMAP
196
static int machoGetMisalignment( FILE * );
Ian Lynagh's avatar
Ian Lynagh committed
197
#endif
198 199 200
#if defined(powerpc_HOST_ARCH) || defined(x86_64_HOST_ARCH)
static int ocAllocateSymbolExtras_MachO ( ObjectCode* oc );
#endif
201
#ifdef powerpc_HOST_ARCH
202
static void machoInitSymbolsWithoutUnderscore( void );
203
#endif
204
#endif
205

206 207 208 209 210 211 212 213 214 215 216 217 218
/* on x86_64 we have a problem with relocating symbol references in
 * code that was compiled without -fPIC.  By default, the small memory
 * model is used, which assumes that symbol references can fit in a
 * 32-bit slot.  The system dynamic linker makes this work for
 * references to shared libraries by either (a) allocating a jump
 * table slot for code references, or (b) moving the symbol at load
 * time (and copying its contents, if necessary) for data references.
 *
 * We unfortunately can't tell whether symbol references are to code
 * or data.  So for now we assume they are code (the vast majority
 * are), and allocate jump-table slots.  Unfortunately this will
 * SILENTLY generate crashing code for data references.  This hack is
 * enabled by X86_64_ELF_NONPIC_HACK.
Ian Lynagh's avatar
Ian Lynagh committed
219
 *
220 221 222 223 224 225 226 227
 * One workaround is to use shared Haskell libraries.  This is
 * coming.  Another workaround is to keep the static libraries but
 * compile them with -fPIC, because that will generate PIC references
 * to data which can be relocated.  The PIC code is still too green to
 * do this systematically, though.
 *
 * See bug #781
 * See thread http://www.haskell.org/pipermail/cvs-ghc/2007-September/038458.html
228 229 230 231 232 233 234 235 236 237 238 239
 *
 * Naming Scheme for Symbol Macros
 *
 * SymI_*: symbol is internal to the RTS. It resides in an object
 *         file/library that is statically.
 * SymE_*: symbol is external to the RTS library. It might be linked
 *         dynamically.
 *
 * Sym*_HasProto  : the symbol prototype is imported in an include file
 *                  or defined explicitly
 * Sym*_NeedsProto: the symbol is undefined and we add a dummy
 *                  default proto extern void sym(void);
240 241
 */
#define X86_64_ELF_NONPIC_HACK 1
242

243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268
/* Link objects into the lower 2Gb on x86_64.  GHC assumes the
 * small memory model on this architecture (see gcc docs,
 * -mcmodel=small).
 *
 * MAP_32BIT not available on OpenBSD/amd64
 */
#if defined(x86_64_HOST_ARCH) && defined(MAP_32BIT)
#define TRY_MAP_32BIT MAP_32BIT
#else
#define TRY_MAP_32BIT 0
#endif

/*
 * Due to the small memory model (see above), on x86_64 we have to map
 * all our non-PIC object files into the low 2Gb of the address space
 * (why 2Gb and not 4Gb?  Because all addresses must be reachable
 * using a 32-bit signed PC-relative offset). On Linux we can do this
 * using the MAP_32BIT flag to mmap(), however on other OSs
 * (e.g. *BSD, see #2063, and also on Linux inside Xen, see #2512), we
 * can't do this.  So on these systems, we have to pick a base address
 * in the low 2Gb of the address space and try to allocate memory from
 * there.
 *
 * We pick a default address based on the OS, but also make this
 * configurable via an RTS flag (+RTS -xm)
 */
269
#if !defined(ALWAYS_PIC) && defined(x86_64_HOST_ARCH)
270 271 272 273 274 275 276 277 278

#if defined(MAP_32BIT)
// Try to use MAP_32BIT
#define MMAP_32BIT_BASE_DEFAULT 0
#else
// A guess: 1Gb.
#define MMAP_32BIT_BASE_DEFAULT 0x40000000
#endif

Ian Lynagh's avatar
Ian Lynagh committed
279
static void *mmap_32bit_base = (void *)MMAP_32BIT_BASE_DEFAULT;
280 281 282 283 284 285 286
#endif

/* MAP_ANONYMOUS is MAP_ANON on some systems, e.g. OpenBSD */
#if !defined(MAP_ANONYMOUS) && defined(MAP_ANON)
#define MAP_ANONYMOUS MAP_ANON
#endif

287 288 289 290
/* -----------------------------------------------------------------------------
 * Built-in symbols from the RTS
 */

291 292 293 294 295
typedef struct _RtsSymbolVal {
    char   *lbl;
    void   *addr;
} RtsSymbolVal;

Ian Lynagh's avatar
Ian Lynagh committed
296
#define Maybe_Stable_Names      SymI_HasProto(stg_mkWeakzh)                     \
297
                                SymI_HasProto(stg_mkWeakNoFinalizzerzh)         \
Ian Lynagh's avatar
Ian Lynagh committed
298 299 300
                                SymI_HasProto(stg_mkWeakForeignEnvzh)           \
                                SymI_HasProto(stg_makeStableNamezh)             \
                                SymI_HasProto(stg_finalizzeWeakzh)
301

302
#if !defined (mingw32_HOST_OS)
303
#define RTS_POSIX_ONLY_SYMBOLS                  \
Ian Lynagh's avatar
Ian Lynagh committed
304 305 306
      SymI_HasProto(__hscore_get_saved_termios) \
      SymI_HasProto(__hscore_set_saved_termios) \
      SymI_HasProto(shutdownHaskellAndSignal)   \
Simon Marlow's avatar
Simon Marlow committed
307 308
      SymI_HasProto(lockFile)                   \
      SymI_HasProto(unlockFile)                 \
Ian Lynagh's avatar
Ian Lynagh committed
309 310
      SymI_HasProto(signal_handlers)            \
      SymI_HasProto(stg_sig_install)            \
311
      SymI_HasProto(rtsTimerSignal)             \
Simon Marlow's avatar
Simon Marlow committed
312
      SymI_HasProto(atexit)                     \
313
      SymI_NeedsProto(nocldstop)
sof's avatar
sof committed
314
#endif
315

316
#if defined (cygwin32_HOST_OS)
sof's avatar
sof committed
317 318 319
#define RTS_MINGW_ONLY_SYMBOLS /**/
/* Don't have the ability to read import libs / archives, so
 * we have to stupidly list a lot of what libcygwin.a
320
 * exports; sigh.
sof's avatar
sof committed
321
 */
322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398
#define RTS_CYGWIN_ONLY_SYMBOLS                          \
      SymI_HasProto(regfree)                             \
      SymI_HasProto(regexec)                             \
      SymI_HasProto(regerror)                            \
      SymI_HasProto(regcomp)                             \
      SymI_HasProto(__errno)                             \
      SymI_HasProto(access)                              \
      SymI_HasProto(chmod)                               \
      SymI_HasProto(chdir)                               \
      SymI_HasProto(close)                               \
      SymI_HasProto(creat)                               \
      SymI_HasProto(dup)                                 \
      SymI_HasProto(dup2)                                \
      SymI_HasProto(fstat)                               \
      SymI_HasProto(fcntl)                               \
      SymI_HasProto(getcwd)                              \
      SymI_HasProto(getenv)                              \
      SymI_HasProto(lseek)                               \
      SymI_HasProto(open)                                \
      SymI_HasProto(fpathconf)                           \
      SymI_HasProto(pathconf)                            \
      SymI_HasProto(stat)                                \
      SymI_HasProto(pow)                                 \
      SymI_HasProto(tanh)                                \
      SymI_HasProto(cosh)                                \
      SymI_HasProto(sinh)                                \
      SymI_HasProto(atan)                                \
      SymI_HasProto(acos)                                \
      SymI_HasProto(asin)                                \
      SymI_HasProto(tan)                                 \
      SymI_HasProto(cos)                                 \
      SymI_HasProto(sin)                                 \
      SymI_HasProto(exp)                                 \
      SymI_HasProto(log)                                 \
      SymI_HasProto(sqrt)                                \
      SymI_HasProto(localtime_r)                         \
      SymI_HasProto(gmtime_r)                            \
      SymI_HasProto(mktime)                              \
      SymI_NeedsProto(_imp___tzname)                     \
      SymI_HasProto(gettimeofday)                        \
      SymI_HasProto(timezone)                            \
      SymI_HasProto(tcgetattr)                           \
      SymI_HasProto(tcsetattr)                           \
      SymI_HasProto(memcpy)                              \
      SymI_HasProto(memmove)                             \
      SymI_HasProto(realloc)                             \
      SymI_HasProto(malloc)                              \
      SymI_HasProto(free)                                \
      SymI_HasProto(fork)                                \
      SymI_HasProto(lstat)                               \
      SymI_HasProto(isatty)                              \
      SymI_HasProto(mkdir)                               \
      SymI_HasProto(opendir)                             \
      SymI_HasProto(readdir)                             \
      SymI_HasProto(rewinddir)                           \
      SymI_HasProto(closedir)                            \
      SymI_HasProto(link)                                \
      SymI_HasProto(mkfifo)                              \
      SymI_HasProto(pipe)                                \
      SymI_HasProto(read)                                \
      SymI_HasProto(rename)                              \
      SymI_HasProto(rmdir)                               \
      SymI_HasProto(select)                              \
      SymI_HasProto(system)                              \
      SymI_HasProto(write)                               \
      SymI_HasProto(strcmp)                              \
      SymI_HasProto(strcpy)                              \
      SymI_HasProto(strncpy)                             \
      SymI_HasProto(strerror)                            \
      SymI_HasProto(sigaddset)                           \
      SymI_HasProto(sigemptyset)                         \
      SymI_HasProto(sigprocmask)                         \
      SymI_HasProto(umask)                               \
      SymI_HasProto(uname)                               \
      SymI_HasProto(unlink)                              \
      SymI_HasProto(utime)                               \
      SymI_HasProto(waitpid)
399

Ian Lynagh's avatar
Ian Lynagh committed
400
#elif defined(mingw32_HOST_OS)
sof's avatar
sof committed
401 402
#define RTS_POSIX_ONLY_SYMBOLS  /**/
#define RTS_CYGWIN_ONLY_SYMBOLS /**/
403

404
#if HAVE_GETTIMEOFDAY
405
#define RTS_MINGW_GETTIMEOFDAY_SYM SymI_NeedsProto(gettimeofday)
406 407 408 409
#else
#define RTS_MINGW_GETTIMEOFDAY_SYM /**/
#endif

410 411 412 413 414 415
#if HAVE___MINGW_VFPRINTF
#define RTS___MINGW_VFPRINTF_SYM SymI_HasProto(__mingw_vfprintf)
#else
#define RTS___MINGW_VFPRINTF_SYM /**/
#endif

Ian Lynagh's avatar
Ian Lynagh committed
416
#if defined(i386_HOST_ARCH)
417
#define RTS_MINGW32_ONLY(X) X
Ian Lynagh's avatar
Ian Lynagh committed
418
#else
419
#define RTS_MINGW32_ONLY(X) /**/
Ian Lynagh's avatar
Ian Lynagh committed
420 421
#endif

422 423
/* These are statically linked from the mingw libraries into the ghc
   executable, so we have to employ this hack. */
424
#define RTS_MINGW_ONLY_SYMBOLS                           \
Ian Lynagh's avatar
Ian Lynagh committed
425 426 427
      SymI_HasProto(stg_asyncReadzh)                     \
      SymI_HasProto(stg_asyncWritezh)                    \
      SymI_HasProto(stg_asyncDoProczh)                   \
428 429
      SymI_HasProto(getWin32ProgArgv)                    \
      SymI_HasProto(setWin32ProgArgv)                    \
430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450
      SymI_HasProto(memset)                              \
      SymI_HasProto(inet_ntoa)                           \
      SymI_HasProto(inet_addr)                           \
      SymI_HasProto(htonl)                               \
      SymI_HasProto(recvfrom)                            \
      SymI_HasProto(listen)                              \
      SymI_HasProto(bind)                                \
      SymI_HasProto(shutdown)                            \
      SymI_HasProto(connect)                             \
      SymI_HasProto(htons)                               \
      SymI_HasProto(ntohs)                               \
      SymI_HasProto(getservbyname)                       \
      SymI_HasProto(getservbyport)                       \
      SymI_HasProto(getprotobynumber)                    \
      SymI_HasProto(getprotobyname)                      \
      SymI_HasProto(gethostbyname)                       \
      SymI_HasProto(gethostbyaddr)                       \
      SymI_HasProto(gethostname)                         \
      SymI_HasProto(strcpy)                              \
      SymI_HasProto(strncpy)                             \
      SymI_HasProto(abort)                               \
451
      RTS_MINGW32_ONLY(SymI_NeedsProto(_alloca))         \
Ian Lynagh's avatar
Ian Lynagh committed
452 453 454 455 456 457 458 459 460 461 462
      SymI_HasProto(isxdigit)                            \
      SymI_HasProto(isupper)                             \
      SymI_HasProto(ispunct)                             \
      SymI_HasProto(islower)                             \
      SymI_HasProto(isspace)                             \
      SymI_HasProto(isprint)                             \
      SymI_HasProto(isdigit)                             \
      SymI_HasProto(iscntrl)                             \
      SymI_HasProto(isalpha)                             \
      SymI_HasProto(isalnum)                             \
      SymI_HasProto(isascii)                             \
463
      RTS___MINGW_VFPRINTF_SYM                           \
464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493
      SymI_HasProto(strcmp)                              \
      SymI_HasProto(memmove)                             \
      SymI_HasProto(realloc)                             \
      SymI_HasProto(malloc)                              \
      SymI_HasProto(pow)                                 \
      SymI_HasProto(tanh)                                \
      SymI_HasProto(cosh)                                \
      SymI_HasProto(sinh)                                \
      SymI_HasProto(atan)                                \
      SymI_HasProto(acos)                                \
      SymI_HasProto(asin)                                \
      SymI_HasProto(tan)                                 \
      SymI_HasProto(cos)                                 \
      SymI_HasProto(sin)                                 \
      SymI_HasProto(exp)                                 \
      SymI_HasProto(log)                                 \
      SymI_HasProto(sqrt)                                \
      SymI_HasProto(powf)                                \
      SymI_HasProto(tanhf)                               \
      SymI_HasProto(coshf)                               \
      SymI_HasProto(sinhf)                               \
      SymI_HasProto(atanf)                               \
      SymI_HasProto(acosf)                               \
      SymI_HasProto(asinf)                               \
      SymI_HasProto(tanf)                                \
      SymI_HasProto(cosf)                                \
      SymI_HasProto(sinf)                                \
      SymI_HasProto(expf)                                \
      SymI_HasProto(logf)                                \
      SymI_HasProto(sqrtf)                               \
Ian Lynagh's avatar
Ian Lynagh committed
494
      SymI_HasProto(erf)                                 \
495 496 497
      SymI_HasProto(erfc)                                \
      SymI_HasProto(erff)                                \
      SymI_HasProto(erfcf)                               \
498 499 500 501
      SymI_HasProto(memcpy)                              \
      SymI_HasProto(rts_InstallConsoleEvent)             \
      SymI_HasProto(rts_ConsoleHandlerDone)              \
      SymI_NeedsProto(mktime)                            \
502 503 504 505 506
      RTS_MINGW32_ONLY(SymI_NeedsProto(_imp___timezone)) \
      RTS_MINGW32_ONLY(SymI_NeedsProto(_imp___tzname))   \
      RTS_MINGW32_ONLY(SymI_NeedsProto(_imp__tzname))    \
      RTS_MINGW32_ONLY(SymI_NeedsProto(_imp___iob))      \
      RTS_MINGW32_ONLY(SymI_NeedsProto(_imp___osver))    \
507 508 509 510 511
      SymI_NeedsProto(localtime)                         \
      SymI_NeedsProto(gmtime)                            \
      SymI_NeedsProto(opendir)                           \
      SymI_NeedsProto(readdir)                           \
      SymI_NeedsProto(rewinddir)                         \
512 513 514
      RTS_MINGW32_ONLY(SymI_NeedsProto(_imp____mb_cur_max)) \
      RTS_MINGW32_ONLY(SymI_NeedsProto(_imp___pctype))   \
      RTS_MINGW32_ONLY(SymI_NeedsProto(__chkstk))        \
515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554
      SymI_NeedsProto(__imp___iob_func)                  \
      SymI_NeedsProto(___chkstk_ms)                      \
      SymI_NeedsProto(__imp_localeconv)                  \
      SymI_NeedsProto(__imp_islower)                     \
      SymI_NeedsProto(__imp_isspace)                     \
      SymI_NeedsProto(__imp_isxdigit)                    \
      SymI_HasProto(close)                               \
      SymI_HasProto(read)                                \
      SymI_HasProto(dup)                                 \
      SymI_HasProto(dup2)                                \
      SymI_HasProto(write)                               \
      SymI_NeedsProto(getpid)                            \
      SymI_HasProto(access)                              \
      SymI_HasProto(chmod)                               \
      SymI_HasProto(creat)                               \
      SymI_HasProto(umask)                               \
      SymI_HasProto(unlink)                              \
      SymI_NeedsProto(__imp__errno)                      \
      SymI_NeedsProto(ftruncate64)                       \
      SymI_HasProto(setmode)                             \
      SymI_NeedsProto(__imp__wstat64)                    \
      SymI_NeedsProto(__imp__fstat64)                    \
      SymI_NeedsProto(__imp__wsopen)                     \
      SymI_HasProto(__imp__environ)                      \
      SymI_NeedsProto(__imp_GetFileType)                 \
      SymI_NeedsProto(__imp_GetLastError)                \
      SymI_NeedsProto(__imp_QueryPerformanceFrequency)   \
      SymI_NeedsProto(__imp_QueryPerformanceCounter)     \
      SymI_NeedsProto(__imp_GetTickCount)                \
      SymI_NeedsProto(__imp_WaitForSingleObject)         \
      SymI_NeedsProto(__imp_PeekConsoleInputA)           \
      SymI_NeedsProto(__imp_ReadConsoleInputA)           \
      SymI_NeedsProto(__imp_PeekNamedPipe)               \
      SymI_NeedsProto(__imp__isatty)                     \
      SymI_NeedsProto(__imp_select)                      \
      SymI_HasProto(isatty)                              \
      SymI_NeedsProto(__imp__get_osfhandle)              \
      SymI_NeedsProto(__imp_GetConsoleMode)              \
      SymI_NeedsProto(__imp_SetConsoleMode)              \
      SymI_NeedsProto(__imp_FlushConsoleInputBuffer)     \
Ian Lynagh's avatar
Ian Lynagh committed
555
      RTS_MINGW_GETTIMEOFDAY_SYM                         \
556
      SymI_NeedsProto(closedir)
Ian Lynagh's avatar
Ian Lynagh committed
557 558 559 560

#else
#define RTS_MINGW_ONLY_SYMBOLS /**/
#define RTS_CYGWIN_ONLY_SYMBOLS /**/
561
#endif
562

563

564
#if defined(darwin_HOST_OS) && HAVE_PRINTF_LDBLSTUB
Ian Lynagh's avatar
Ian Lynagh committed
565
#define RTS_DARWIN_ONLY_SYMBOLS                             \
566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609
     SymI_NeedsProto(asprintf$LDBLStub)                     \
     SymI_NeedsProto(err$LDBLStub)                          \
     SymI_NeedsProto(errc$LDBLStub)                         \
     SymI_NeedsProto(errx$LDBLStub)                         \
     SymI_NeedsProto(fprintf$LDBLStub)                      \
     SymI_NeedsProto(fscanf$LDBLStub)                       \
     SymI_NeedsProto(fwprintf$LDBLStub)                     \
     SymI_NeedsProto(fwscanf$LDBLStub)                      \
     SymI_NeedsProto(printf$LDBLStub)                       \
     SymI_NeedsProto(scanf$LDBLStub)                        \
     SymI_NeedsProto(snprintf$LDBLStub)                     \
     SymI_NeedsProto(sprintf$LDBLStub)                      \
     SymI_NeedsProto(sscanf$LDBLStub)                       \
     SymI_NeedsProto(strtold$LDBLStub)                      \
     SymI_NeedsProto(swprintf$LDBLStub)                     \
     SymI_NeedsProto(swscanf$LDBLStub)                      \
     SymI_NeedsProto(syslog$LDBLStub)                       \
     SymI_NeedsProto(vasprintf$LDBLStub)                    \
     SymI_NeedsProto(verr$LDBLStub)                         \
     SymI_NeedsProto(verrc$LDBLStub)                        \
     SymI_NeedsProto(verrx$LDBLStub)                        \
     SymI_NeedsProto(vfprintf$LDBLStub)                     \
     SymI_NeedsProto(vfscanf$LDBLStub)                      \
     SymI_NeedsProto(vfwprintf$LDBLStub)                    \
     SymI_NeedsProto(vfwscanf$LDBLStub)                     \
     SymI_NeedsProto(vprintf$LDBLStub)                      \
     SymI_NeedsProto(vscanf$LDBLStub)                       \
     SymI_NeedsProto(vsnprintf$LDBLStub)                    \
     SymI_NeedsProto(vsprintf$LDBLStub)                     \
     SymI_NeedsProto(vsscanf$LDBLStub)                      \
     SymI_NeedsProto(vswprintf$LDBLStub)                    \
     SymI_NeedsProto(vswscanf$LDBLStub)                     \
     SymI_NeedsProto(vsyslog$LDBLStub)                      \
     SymI_NeedsProto(vwarn$LDBLStub)                        \
     SymI_NeedsProto(vwarnc$LDBLStub)                       \
     SymI_NeedsProto(vwarnx$LDBLStub)                       \
     SymI_NeedsProto(vwprintf$LDBLStub)                     \
     SymI_NeedsProto(vwscanf$LDBLStub)                      \
     SymI_NeedsProto(warn$LDBLStub)                         \
     SymI_NeedsProto(warnc$LDBLStub)                        \
     SymI_NeedsProto(warnx$LDBLStub)                        \
     SymI_NeedsProto(wcstold$LDBLStub)                      \
     SymI_NeedsProto(wprintf$LDBLStub)                      \
     SymI_NeedsProto(wscanf$LDBLStub)
610 611 612 613
#else
#define RTS_DARWIN_ONLY_SYMBOLS
#endif

sof's avatar
sof committed
614
#ifndef SMP
615
# define MAIN_CAP_SYM SymI_HasProto(MainCapability)
sof's avatar
sof committed
616 617 618
#else
# define MAIN_CAP_SYM
#endif
619

sof's avatar
sof committed
620
#if !defined(mingw32_HOST_OS)
Ian Lynagh's avatar
Ian Lynagh committed
621
#define RTS_USER_SIGNALS_SYMBOLS        \
622
   SymI_HasProto(setIOManagerControlFd) \
Ian Lynagh's avatar
Ian Lynagh committed
623 624 625
   SymI_HasProto(setIOManagerWakeupFd)  \
   SymI_HasProto(ioManagerWakeup)       \
   SymI_HasProto(blockUserSignals)      \
626
   SymI_HasProto(unblockUserSignals)
sof's avatar
sof committed
627
#else
Ian Lynagh's avatar
Ian Lynagh committed
628 629 630 631 632
#define RTS_USER_SIGNALS_SYMBOLS        \
   SymI_HasProto(ioManagerWakeup)       \
   SymI_HasProto(sendIOManagerEvent)    \
   SymI_HasProto(readIOManagerEvent)    \
   SymI_HasProto(getIOManagerEvent)     \
633
   SymI_HasProto(console_handler)
sof's avatar
sof committed
634 635
#endif

636 637 638 639 640 641 642 643 644 645 646 647 648 649 650
#define RTS_LIBFFI_SYMBOLS                                  \
     SymE_NeedsProto(ffi_prep_cif)                          \
     SymE_NeedsProto(ffi_call)                              \
     SymE_NeedsProto(ffi_type_void)                         \
     SymE_NeedsProto(ffi_type_float)                        \
     SymE_NeedsProto(ffi_type_double)                       \
     SymE_NeedsProto(ffi_type_sint64)                       \
     SymE_NeedsProto(ffi_type_uint64)                       \
     SymE_NeedsProto(ffi_type_sint32)                       \
     SymE_NeedsProto(ffi_type_uint32)                       \
     SymE_NeedsProto(ffi_type_sint16)                       \
     SymE_NeedsProto(ffi_type_uint16)                       \
     SymE_NeedsProto(ffi_type_sint8)                        \
     SymE_NeedsProto(ffi_type_uint8)                        \
     SymE_NeedsProto(ffi_type_pointer)
651

652 653 654
#ifdef TABLES_NEXT_TO_CODE
#define RTS_RET_SYMBOLS /* nothing */
#else
Ian Lynagh's avatar
Ian Lynagh committed
655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670
#define RTS_RET_SYMBOLS                                 \
      SymI_HasProto(stg_enter_ret)                      \
      SymI_HasProto(stg_gc_fun_ret)                     \
      SymI_HasProto(stg_ap_v_ret)                       \
      SymI_HasProto(stg_ap_f_ret)                       \
      SymI_HasProto(stg_ap_d_ret)                       \
      SymI_HasProto(stg_ap_l_ret)                       \
      SymI_HasProto(stg_ap_n_ret)                       \
      SymI_HasProto(stg_ap_p_ret)                       \
      SymI_HasProto(stg_ap_pv_ret)                      \
      SymI_HasProto(stg_ap_pp_ret)                      \
      SymI_HasProto(stg_ap_ppv_ret)                     \
      SymI_HasProto(stg_ap_ppp_ret)                     \
      SymI_HasProto(stg_ap_pppv_ret)                    \
      SymI_HasProto(stg_ap_pppp_ret)                    \
      SymI_HasProto(stg_ap_ppppp_ret)                   \
671
      SymI_HasProto(stg_ap_pppppp_ret)
672 673
#endif

674 675
/* Modules compiled with -ticky may mention ticky counters */
/* This list should marry up with the one in $(TOP)/includes/stg/Ticky.h */
Ian Lynagh's avatar
Ian Lynagh committed
676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709
#define RTS_TICKY_SYMBOLS                               \
      SymI_NeedsProto(ticky_entry_ctrs)                 \
      SymI_NeedsProto(top_ct)                           \
                                                        \
      SymI_HasProto(ENT_VIA_NODE_ctr)                   \
      SymI_HasProto(ENT_STATIC_THK_ctr)                 \
      SymI_HasProto(ENT_DYN_THK_ctr)                    \
      SymI_HasProto(ENT_STATIC_FUN_DIRECT_ctr)          \
      SymI_HasProto(ENT_DYN_FUN_DIRECT_ctr)             \
      SymI_HasProto(ENT_STATIC_CON_ctr)                 \
      SymI_HasProto(ENT_DYN_CON_ctr)                    \
      SymI_HasProto(ENT_STATIC_IND_ctr)                 \
      SymI_HasProto(ENT_DYN_IND_ctr)                    \
      SymI_HasProto(ENT_PERM_IND_ctr)                   \
      SymI_HasProto(ENT_PAP_ctr)                        \
      SymI_HasProto(ENT_AP_ctr)                         \
      SymI_HasProto(ENT_AP_STACK_ctr)                   \
      SymI_HasProto(ENT_BH_ctr)                         \
      SymI_HasProto(UNKNOWN_CALL_ctr)                   \
      SymI_HasProto(SLOW_CALL_v_ctr)                    \
      SymI_HasProto(SLOW_CALL_f_ctr)                    \
      SymI_HasProto(SLOW_CALL_d_ctr)                    \
      SymI_HasProto(SLOW_CALL_l_ctr)                    \
      SymI_HasProto(SLOW_CALL_n_ctr)                    \
      SymI_HasProto(SLOW_CALL_p_ctr)                    \
      SymI_HasProto(SLOW_CALL_pv_ctr)                   \
      SymI_HasProto(SLOW_CALL_pp_ctr)                   \
      SymI_HasProto(SLOW_CALL_ppv_ctr)                  \
      SymI_HasProto(SLOW_CALL_ppp_ctr)                  \
      SymI_HasProto(SLOW_CALL_pppv_ctr)                 \
      SymI_HasProto(SLOW_CALL_pppp_ctr)                 \
      SymI_HasProto(SLOW_CALL_ppppp_ctr)                \
      SymI_HasProto(SLOW_CALL_pppppp_ctr)               \
      SymI_HasProto(SLOW_CALL_OTHER_ctr)                \
710
      SymI_HasProto(ticky_slow_call_unevald)            \
Ian Lynagh's avatar
Ian Lynagh committed
711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783
      SymI_HasProto(SLOW_CALL_ctr)                      \
      SymI_HasProto(MULTI_CHUNK_SLOW_CALL_ctr)          \
      SymI_HasProto(MULTI_CHUNK_SLOW_CALL_CHUNKS_ctr)   \
      SymI_HasProto(KNOWN_CALL_ctr)                     \
      SymI_HasProto(KNOWN_CALL_TOO_FEW_ARGS_ctr)        \
      SymI_HasProto(KNOWN_CALL_EXTRA_ARGS_ctr)          \
      SymI_HasProto(SLOW_CALL_FUN_TOO_FEW_ctr)          \
      SymI_HasProto(SLOW_CALL_FUN_CORRECT_ctr)          \
      SymI_HasProto(SLOW_CALL_FUN_TOO_MANY_ctr)         \
      SymI_HasProto(SLOW_CALL_PAP_TOO_FEW_ctr)          \
      SymI_HasProto(SLOW_CALL_PAP_CORRECT_ctr)          \
      SymI_HasProto(SLOW_CALL_PAP_TOO_MANY_ctr)         \
      SymI_HasProto(SLOW_CALL_UNEVALD_ctr)              \
      SymI_HasProto(UPDF_OMITTED_ctr)                   \
      SymI_HasProto(UPDF_PUSHED_ctr)                    \
      SymI_HasProto(CATCHF_PUSHED_ctr)                  \
      SymI_HasProto(UPDF_RCC_PUSHED_ctr)                \
      SymI_HasProto(UPDF_RCC_OMITTED_ctr)               \
      SymI_HasProto(UPD_SQUEEZED_ctr)                   \
      SymI_HasProto(UPD_CON_IN_NEW_ctr)                 \
      SymI_HasProto(UPD_CON_IN_PLACE_ctr)               \
      SymI_HasProto(UPD_PAP_IN_NEW_ctr)                 \
      SymI_HasProto(UPD_PAP_IN_PLACE_ctr)               \
      SymI_HasProto(ALLOC_HEAP_ctr)                     \
      SymI_HasProto(ALLOC_HEAP_tot)                     \
      SymI_HasProto(ALLOC_FUN_ctr)                      \
      SymI_HasProto(ALLOC_FUN_adm)                      \
      SymI_HasProto(ALLOC_FUN_gds)                      \
      SymI_HasProto(ALLOC_FUN_slp)                      \
      SymI_HasProto(UPD_NEW_IND_ctr)                    \
      SymI_HasProto(UPD_NEW_PERM_IND_ctr)               \
      SymI_HasProto(UPD_OLD_IND_ctr)                    \
      SymI_HasProto(UPD_OLD_PERM_IND_ctr)               \
      SymI_HasProto(UPD_BH_UPDATABLE_ctr)               \
      SymI_HasProto(UPD_BH_SINGLE_ENTRY_ctr)            \
      SymI_HasProto(UPD_CAF_BH_UPDATABLE_ctr)           \
      SymI_HasProto(UPD_CAF_BH_SINGLE_ENTRY_ctr)        \
      SymI_HasProto(GC_SEL_ABANDONED_ctr)               \
      SymI_HasProto(GC_SEL_MINOR_ctr)                   \
      SymI_HasProto(GC_SEL_MAJOR_ctr)                   \
      SymI_HasProto(GC_FAILED_PROMOTION_ctr)            \
      SymI_HasProto(ALLOC_UP_THK_ctr)                   \
      SymI_HasProto(ALLOC_SE_THK_ctr)                   \
      SymI_HasProto(ALLOC_THK_adm)                      \
      SymI_HasProto(ALLOC_THK_gds)                      \
      SymI_HasProto(ALLOC_THK_slp)                      \
      SymI_HasProto(ALLOC_CON_ctr)                      \
      SymI_HasProto(ALLOC_CON_adm)                      \
      SymI_HasProto(ALLOC_CON_gds)                      \
      SymI_HasProto(ALLOC_CON_slp)                      \
      SymI_HasProto(ALLOC_TUP_ctr)                      \
      SymI_HasProto(ALLOC_TUP_adm)                      \
      SymI_HasProto(ALLOC_TUP_gds)                      \
      SymI_HasProto(ALLOC_TUP_slp)                      \
      SymI_HasProto(ALLOC_BH_ctr)                       \
      SymI_HasProto(ALLOC_BH_adm)                       \
      SymI_HasProto(ALLOC_BH_gds)                       \
      SymI_HasProto(ALLOC_BH_slp)                       \
      SymI_HasProto(ALLOC_PRIM_ctr)                     \
      SymI_HasProto(ALLOC_PRIM_adm)                     \
      SymI_HasProto(ALLOC_PRIM_gds)                     \
      SymI_HasProto(ALLOC_PRIM_slp)                     \
      SymI_HasProto(ALLOC_PAP_ctr)                      \
      SymI_HasProto(ALLOC_PAP_adm)                      \
      SymI_HasProto(ALLOC_PAP_gds)                      \
      SymI_HasProto(ALLOC_PAP_slp)                      \
      SymI_HasProto(ALLOC_TSO_ctr)                      \
      SymI_HasProto(ALLOC_TSO_adm)                      \
      SymI_HasProto(ALLOC_TSO_gds)                      \
      SymI_HasProto(ALLOC_TSO_slp)                      \
      SymI_HasProto(RET_NEW_ctr)                        \
      SymI_HasProto(RET_OLD_ctr)                        \
      SymI_HasProto(RET_UNBOXED_TUP_ctr)                \
784 785 786
      SymI_HasProto(RET_SEMI_loads_avoided)


787
// On most platforms, the garbage collector rewrites references
Ian Lynagh's avatar
Ian Lynagh committed
788
//      to small integer and char objects to a set of common, shared ones.
789 790
//
// We don't do this when compiling to Windows DLLs at the moment because
Ian Lynagh's avatar
Ian Lynagh committed
791
//      it doesn't support cross package data references well.
792
//
Ian Lynagh's avatar
Ian Lynagh committed
793
#if defined(__PIC__) && defined(mingw32_HOST_OS) && defined(i386_HOST_ARCH)
794 795
#define RTS_INTCHAR_SYMBOLS
#else
Ian Lynagh's avatar
Ian Lynagh committed
796 797 798
#define RTS_INTCHAR_SYMBOLS                             \
      SymI_HasProto(stg_CHARLIKE_closure)               \
      SymI_HasProto(stg_INTLIKE_closure)
799 800 801
#endif


Ian Lynagh's avatar
Ian Lynagh committed
802 803
#define RTS_SYMBOLS                                     \
      Maybe_Stable_Names                                \
804
      RTS_TICKY_SYMBOLS                                 \
Ian Lynagh's avatar
Ian Lynagh committed
805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833
      SymI_HasProto(StgReturn)                          \
      SymI_HasProto(stg_enter_info)                     \
      SymI_HasProto(stg_gc_void_info)                   \
      SymI_HasProto(__stg_gc_enter_1)                   \
      SymI_HasProto(stg_gc_noregs)                      \
      SymI_HasProto(stg_gc_unpt_r1_info)                \
      SymI_HasProto(stg_gc_unpt_r1)                     \
      SymI_HasProto(stg_gc_unbx_r1_info)                \
      SymI_HasProto(stg_gc_unbx_r1)                     \
      SymI_HasProto(stg_gc_f1_info)                     \
      SymI_HasProto(stg_gc_f1)                          \
      SymI_HasProto(stg_gc_d1_info)                     \
      SymI_HasProto(stg_gc_d1)                          \
      SymI_HasProto(stg_gc_l1_info)                     \
      SymI_HasProto(stg_gc_l1)                          \
      SymI_HasProto(__stg_gc_fun)                       \
      SymI_HasProto(stg_gc_fun_info)                    \
      SymI_HasProto(stg_gc_gen)                         \
      SymI_HasProto(stg_gc_gen_info)                    \
      SymI_HasProto(stg_gc_gen_hp)                      \
      SymI_HasProto(stg_gc_ut)                          \
      SymI_HasProto(stg_gen_yield)                      \
      SymI_HasProto(stg_yield_noregs)                   \
      SymI_HasProto(stg_yield_to_interpreter)           \
      SymI_HasProto(stg_gen_block)                      \
      SymI_HasProto(stg_block_noregs)                   \
      SymI_HasProto(stg_block_1)                        \
      SymI_HasProto(stg_block_takemvar)                 \
      SymI_HasProto(stg_block_putmvar)                  \
834
      MAIN_CAP_SYM                                      \
Ian Lynagh's avatar
Ian Lynagh committed
835 836 837 838 839 840 841 842 843 844 845 846 847 848
      SymI_HasProto(MallocFailHook)                     \
      SymI_HasProto(OnExitHook)                         \
      SymI_HasProto(OutOfHeapHook)                      \
      SymI_HasProto(StackOverflowHook)                  \
      SymI_HasProto(addDLL)                             \
      SymI_HasProto(__int_encodeDouble)                 \
      SymI_HasProto(__word_encodeDouble)                \
      SymI_HasProto(__2Int_encodeDouble)                \
      SymI_HasProto(__int_encodeFloat)                  \
      SymI_HasProto(__word_encodeFloat)                 \
      SymI_HasProto(stg_atomicallyzh)                   \
      SymI_HasProto(barf)                               \
      SymI_HasProto(debugBelch)                         \
      SymI_HasProto(errorBelch)                         \
Simon Marlow's avatar
Simon Marlow committed
849
      SymI_HasProto(sysErrorBelch)                      \
Ian Lynagh's avatar
Ian Lynagh committed
850 851 852 853 854 855
      SymI_HasProto(stg_getMaskingStatezh)              \
      SymI_HasProto(stg_maskAsyncExceptionszh)          \
      SymI_HasProto(stg_maskUninterruptiblezh)          \
      SymI_HasProto(stg_catchzh)                        \
      SymI_HasProto(stg_catchRetryzh)                   \
      SymI_HasProto(stg_catchSTMzh)                     \
856
      SymI_HasProto(stg_checkzh)                        \
857
      SymI_HasProto(closure_flags)                      \
Ian Lynagh's avatar
Ian Lynagh committed
858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877
      SymI_HasProto(cmp_thread)                         \
      SymI_HasProto(createAdjustor)                     \
      SymI_HasProto(stg_decodeDoublezu2Intzh)           \
      SymI_HasProto(stg_decodeFloatzuIntzh)             \
      SymI_HasProto(defaultsHook)                       \
      SymI_HasProto(stg_delayzh)                        \
      SymI_HasProto(stg_deRefWeakzh)                    \
      SymI_HasProto(stg_deRefStablePtrzh)               \
      SymI_HasProto(dirty_MUT_VAR)                      \
      SymI_HasProto(stg_forkzh)                         \
      SymI_HasProto(stg_forkOnzh)                       \
      SymI_HasProto(forkProcess)                        \
      SymI_HasProto(forkOS_createThread)                \
      SymI_HasProto(freeHaskellFunctionPtr)             \
      SymI_HasProto(getOrSetGHCConcSignalSignalHandlerStore)            \
      SymI_HasProto(getOrSetGHCConcWindowsPendingDelaysStore)           \
      SymI_HasProto(getOrSetGHCConcWindowsIOManagerThreadStore)         \
      SymI_HasProto(getOrSetGHCConcWindowsProddingStore)                \
      SymI_HasProto(getOrSetSystemEventThreadEventManagerStore)         \
      SymI_HasProto(getOrSetSystemEventThreadIOManagerThreadStore)      \
878
      SymI_HasProto(getGCStats)                         \
Ian Lynagh's avatar
Ian Lynagh committed
879 880 881 882 883 884 885 886 887 888 889 890 891 892 893
      SymI_HasProto(genSymZh)                           \
      SymI_HasProto(genericRaise)                       \
      SymI_HasProto(getProgArgv)                        \
      SymI_HasProto(getFullProgArgv)                    \
      SymI_HasProto(getStablePtr)                       \
      SymI_HasProto(hs_init)                            \
      SymI_HasProto(hs_exit)                            \
      SymI_HasProto(hs_set_argv)                        \
      SymI_HasProto(hs_add_root)                        \
      SymI_HasProto(hs_perform_gc)                      \
      SymI_HasProto(hs_free_stable_ptr)                 \
      SymI_HasProto(hs_free_fun_ptr)                    \
      SymI_HasProto(hs_hpc_rootModule)                  \
      SymI_HasProto(hs_hpc_module)                      \
      SymI_HasProto(initLinker)                         \
894 895 896
      SymI_HasProto(stg_unpackClosurezh)                \
      SymI_HasProto(stg_getApStackValzh)                \
      SymI_HasProto(stg_getSparkzh)                     \
Simon Marlow's avatar
Simon Marlow committed
897
      SymI_HasProto(stg_numSparkszh)                    \
Ian Lynagh's avatar
Ian Lynagh committed
898 899 900 901 902 903 904 905 906 907 908
      SymI_HasProto(stg_isCurrentThreadBoundzh)         \
      SymI_HasProto(stg_isEmptyMVarzh)                  \
      SymI_HasProto(stg_killThreadzh)                   \
      SymI_HasProto(loadArchive)                        \
      SymI_HasProto(loadObj)                            \
      SymI_HasProto(insertStableSymbol)                 \
      SymI_HasProto(insertSymbol)                       \
      SymI_HasProto(lookupSymbol)                       \
      SymI_HasProto(stg_makeStablePtrzh)                \
      SymI_HasProto(stg_mkApUpd0zh)                     \
      SymI_HasProto(stg_myThreadIdzh)                   \
909
      SymI_HasProto(stg_labelThreadzh)                  \
Ian Lynagh's avatar
Ian Lynagh committed
910
      SymI_HasProto(stg_newArrayzh)                     \
911
      SymI_HasProto(stg_newArrayArrayzh)                     \
Ian Lynagh's avatar
Ian Lynagh committed
912 913 914 915 916 917 918 919
      SymI_HasProto(stg_newBCOzh)                       \
      SymI_HasProto(stg_newByteArrayzh)                 \
      SymI_HasProto_redirect(newCAF, newDynCAF)         \
      SymI_HasProto(stg_newMVarzh)                      \
      SymI_HasProto(stg_newMutVarzh)                    \
      SymI_HasProto(stg_newTVarzh)                      \
      SymI_HasProto(stg_noDuplicatezh)                  \
      SymI_HasProto(stg_atomicModifyMutVarzh)           \
Simon Marlow's avatar
Simon Marlow committed
920
      SymI_HasProto(stg_casMutVarzh)                    \
Ian Lynagh's avatar
Ian Lynagh committed
921 922 923 924 925 926 927 928 929 930 931 932 933
      SymI_HasProto(stg_newPinnedByteArrayzh)           \
      SymI_HasProto(stg_newAlignedPinnedByteArrayzh)    \
      SymI_HasProto(newSpark)                           \
      SymI_HasProto(performGC)                          \
      SymI_HasProto(performMajorGC)                     \
      SymI_HasProto(prog_argc)                          \
      SymI_HasProto(prog_argv)                          \
      SymI_HasProto(stg_putMVarzh)                      \
      SymI_HasProto(stg_raisezh)                        \
      SymI_HasProto(stg_raiseIOzh)                      \
      SymI_HasProto(stg_readTVarzh)                     \
      SymI_HasProto(stg_readTVarIOzh)                   \
      SymI_HasProto(resumeThread)                       \
934
      SymI_HasProto(setNumCapabilities)                 \
935
      SymI_HasProto(getNumberOfProcessors)              \
936
      SymI_HasProto(resolveObjs)                        \
937
      SymI_HasProto(stg_retryzh)                        \
Ian Lynagh's avatar
Ian Lynagh committed
938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982
      SymI_HasProto(rts_apply)                          \
      SymI_HasProto(rts_checkSchedStatus)               \
      SymI_HasProto(rts_eval)                           \
      SymI_HasProto(rts_evalIO)                         \
      SymI_HasProto(rts_evalLazyIO)                     \
      SymI_HasProto(rts_evalStableIO)                   \
      SymI_HasProto(rts_eval_)                          \
      SymI_HasProto(rts_getBool)                        \
      SymI_HasProto(rts_getChar)                        \
      SymI_HasProto(rts_getDouble)                      \
      SymI_HasProto(rts_getFloat)                       \
      SymI_HasProto(rts_getInt)                         \
      SymI_HasProto(rts_getInt8)                        \
      SymI_HasProto(rts_getInt16)                       \
      SymI_HasProto(rts_getInt32)                       \
      SymI_HasProto(rts_getInt64)                       \
      SymI_HasProto(rts_getPtr)                         \
      SymI_HasProto(rts_getFunPtr)                      \
      SymI_HasProto(rts_getStablePtr)                   \
      SymI_HasProto(rts_getThreadId)                    \
      SymI_HasProto(rts_getWord)                        \
      SymI_HasProto(rts_getWord8)                       \
      SymI_HasProto(rts_getWord16)                      \
      SymI_HasProto(rts_getWord32)                      \
      SymI_HasProto(rts_getWord64)                      \
      SymI_HasProto(rts_lock)                           \
      SymI_HasProto(rts_mkBool)                         \
      SymI_HasProto(rts_mkChar)                         \
      SymI_HasProto(rts_mkDouble)                       \
      SymI_HasProto(rts_mkFloat)                        \
      SymI_HasProto(rts_mkInt)                          \
      SymI_HasProto(rts_mkInt8)                         \
      SymI_HasProto(rts_mkInt16)                        \
      SymI_HasProto(rts_mkInt32)                        \
      SymI_HasProto(rts_mkInt64)                        \
      SymI_HasProto(rts_mkPtr)                          \
      SymI_HasProto(rts_mkFunPtr)                       \
      SymI_HasProto(rts_mkStablePtr)                    \
      SymI_HasProto(rts_mkString)                       \
      SymI_HasProto(rts_mkWord)                         \
      SymI_HasProto(rts_mkWord8)                        \
      SymI_HasProto(rts_mkWord16)                       \
      SymI_HasProto(rts_mkWord32)                       \
      SymI_HasProto(rts_mkWord64)                       \
      SymI_HasProto(rts_unlock)                         \
983
      SymI_HasProto(rts_unsafeGetMyCapability)          \
Ian Lynagh's avatar
Ian Lynagh committed
984
      SymI_HasProto(rtsSupportsBoundThreads)            \
985
      SymI_HasProto(rts_isProfiled)                     \
Ian Lynagh's avatar
Ian Lynagh committed
986 987 988 989 990 991 992 993 994
      SymI_HasProto(setProgArgv)                        \
      SymI_HasProto(startupHaskell)                     \
      SymI_HasProto(shutdownHaskell)                    \
      SymI_HasProto(shutdownHaskellAndExit)             \
      SymI_HasProto(stable_ptr_table)                   \
      SymI_HasProto(stackOverflow)                      \
      SymI_HasProto(stg_CAF_BLACKHOLE_info)             \
      SymI_HasProto(stg_BLACKHOLE_info)                 \
      SymI_HasProto(__stg_EAGER_BLACKHOLE_info)         \
995
      SymI_HasProto(stg_BLOCKING_QUEUE_CLEAN_info)      \
Ian Lynagh's avatar
Ian Lynagh committed
996
      SymI_HasProto(stg_BLOCKING_QUEUE_DIRTY_info)      \
997
      SymI_HasProto(startTimer)                         \
Ian Lynagh's avatar
Ian Lynagh committed
998 999 1000
      SymI_HasProto(stg_MVAR_CLEAN_info)                \
      SymI_HasProto(stg_MVAR_DIRTY_info)                \
      SymI_HasProto(stg_IND_STATIC_info)                \
1001
      SymI_HasProto(stg_ARR_WORDS_info)                 \
Ian Lynagh's avatar
Ian Lynagh committed
1002 1003 1004
      SymI_HasProto(stg_MUT_ARR_PTRS_DIRTY_info)        \
      SymI_HasProto(stg_MUT_ARR_PTRS_FROZEN_info)       \
      SymI_HasProto(stg_MUT_ARR_PTRS_FROZEN0_info)      \
1005
      SymI_HasProto(stg_WEAK_info)                      \
Ian Lynagh's avatar
Ian Lynagh committed
1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066
      SymI_HasProto(stg_ap_v_info)                      \
      SymI_HasProto(stg_ap_f_info)                      \
      SymI_HasProto(stg_ap_d_info)                      \
      SymI_HasProto(stg_ap_l_info)                      \
      SymI_HasProto(stg_ap_n_info)                      \
      SymI_HasProto(stg_ap_p_info)                      \
      SymI_HasProto(stg_ap_pv_info)                     \
      SymI_HasProto(stg_ap_pp_info)                     \
      SymI_HasProto(stg_ap_ppv_info)                    \
      SymI_HasProto(stg_ap_ppp_info)                    \
      SymI_HasProto(stg_ap_pppv_info)                   \
      SymI_HasProto(stg_ap_pppp_info)                   \
      SymI_HasProto(stg_ap_ppppp_info)                  \
      SymI_HasProto(stg_ap_pppppp_info)                 \
      SymI_HasProto(stg_ap_0_fast)                      \
      SymI_HasProto(stg_ap_v_fast)                      \
      SymI_HasProto(stg_ap_f_fast)                      \
      SymI_HasProto(stg_ap_d_fast)                      \
      SymI_HasProto(stg_ap_l_fast)                      \
      SymI_HasProto(stg_ap_n_fast)                      \
      SymI_HasProto(stg_ap_p_fast)                      \
      SymI_HasProto(stg_ap_pv_fast)                     \
      SymI_HasProto(stg_ap_pp_fast)                     \
      SymI_HasProto(stg_ap_ppv_fast)                    \
      SymI_HasProto(stg_ap_ppp_fast)                    \
      SymI_HasProto(stg_ap_pppv_fast)                   \
      SymI_HasProto(stg_ap_pppp_fast)                   \
      SymI_HasProto(stg_ap_ppppp_fast)                  \
      SymI_HasProto(stg_ap_pppppp_fast)                 \
      SymI_HasProto(stg_ap_1_upd_info)                  \
      SymI_HasProto(stg_ap_2_upd_info)                  \
      SymI_HasProto(stg_ap_3_upd_info)                  \
      SymI_HasProto(stg_ap_4_upd_info)                  \
      SymI_HasProto(stg_ap_5_upd_info)                  \
      SymI_HasProto(stg_ap_6_upd_info)                  \
      SymI_HasProto(stg_ap_7_upd_info)                  \
      SymI_HasProto(stg_exit)                           \
      SymI_HasProto(stg_sel_0_upd_info)                 \
      SymI_HasProto(stg_sel_10_upd_info)                \
      SymI_HasProto(stg_sel_11_upd_info)                \
      SymI_HasProto(stg_sel_12_upd_info)                \
      SymI_HasProto(stg_sel_13_upd_info)                \
      SymI_HasProto(stg_sel_14_upd_info)                \
      SymI_HasProto(stg_sel_15_upd_info)                \
      SymI_HasProto(stg_sel_1_upd_info)                 \
      SymI_HasProto(stg_sel_2_upd_info)                 \
      SymI_HasProto(stg_sel_3_upd_info)                 \
      SymI_HasProto(stg_sel_4_upd_info)                 \
      SymI_HasProto(stg_sel_5_upd_info)                 \
      SymI_HasProto(stg_sel_6_upd_info)                 \
      SymI_HasProto(stg_sel_7_upd_info)                 \
      SymI_HasProto(stg_sel_8_upd_info)                 \
      SymI_HasProto(stg_sel_9_upd_info)                 \
      SymI_HasProto(stg_upd_frame_info)                 \
      SymI_HasProto(stg_bh_upd_frame_info)              \
      SymI_HasProto(suspendThread)                      \
      SymI_HasProto(stg_takeMVarzh)                     \
      SymI_HasProto(stg_threadStatuszh)                 \
      SymI_HasProto(stg_tryPutMVarzh)                   \
      SymI_HasProto(stg_tryTakeMVarzh)                  \
      SymI_HasProto(stg_unmaskAsyncExceptionszh)        \
1067
      SymI_HasProto(unloadObj)                          \
Ian Lynagh's avatar
Ian Lynagh committed
1068 1069 1070 1071
      SymI_HasProto(stg_unsafeThawArrayzh)              \
      SymI_HasProto(stg_waitReadzh)                     \
      SymI_HasProto(stg_waitWritezh)                    \
      SymI_HasProto(stg_writeTVarzh)                    \
1072
      SymI_HasProto(stg_yieldzh)                        \
1073
      SymI_NeedsProto(stg_interp_constr_entry)          \
1074
      SymI_HasProto(stg_arg_bitmaps)                    \
1075
      SymI_HasProto(large_alloc_lim)                    \
Simon Marlow's avatar
Simon Marlow committed
1076
      SymI_HasProto(g0)                                 \
1077
      SymI_HasProto(allocate)                           \
Ian Lynagh's avatar
Ian Lynagh committed
1078 1079
      SymI_HasProto(allocateExec)                       \
      SymI_HasProto(freeExec)                           \
1080 1081 1082
      SymI_HasProto(getAllocations)                     \
      SymI_HasProto(revertCAFs)                         \
      SymI_HasProto(RtsFlags)                           \
Ian Lynagh's avatar
Ian Lynagh committed
1083 1084 1085 1086 1087
      SymI_NeedsProto(rts_breakpoint_io_action)         \
      SymI_NeedsProto(rts_stop_next_breakpoint)         \
      SymI_NeedsProto(rts_stop_on_exception)            \
      SymI_HasProto(stopTimer)                          \
      SymI_HasProto(n_capabilities)                     \
1088
      SymI_HasProto(stg_traceCcszh)                     \
1089
      SymI_HasProto(stg_traceEventzh)                   \
Ian Lynagh's avatar
Ian Lynagh committed
1090
      RTS_USER_SIGNALS_SYMBOLS                          \
1091
      RTS_INTCHAR_SYMBOLS
1092

1093

1094 1095
// 64-bit support functions in libgcc.a
#if defined(__GNUC__) && SIZEOF_VOID_P <= 4
Ian Lynagh's avatar
Ian Lynagh committed
1096
#define RTS_LIBGCC_SYMBOLS                             \
1097 1098 1099
      SymI_NeedsProto(__divdi3)                        \
      SymI_NeedsProto(__udivdi3)                       \
      SymI_NeedsProto(__moddi3)                        \
Ian Lynagh's avatar
Ian Lynagh committed
1100 1101 1102 1103
      SymI_NeedsProto(__umoddi3)                       \
      SymI_NeedsProto(__muldi3)                        \
      SymI_NeedsProto(__ashldi3)                       \
      SymI_NeedsProto(__ashrdi3)                       \
1104 1105
      SymI_NeedsProto(__lshrdi3)                       \
      SymI_NeedsProto(__fixunsdfdi)
1106 1107 1108 1109
#else
#define RTS_LIBGCC_SYMBOLS
#endif

1110
#if defined(darwin_HOST_OS) && defined(powerpc_HOST_ARCH)
1111 1112 1113
      // Symbols that don't have a leading underscore
      // on Mac OS X. They have to receive special treatment,
      // see machoInitSymbolsWithoutUnderscore()
Ian Lynagh's avatar
Ian Lynagh committed
1114 1115
#define RTS_MACHO_NOUNDERLINE_SYMBOLS                   \
      SymI_NeedsProto(saveFP)                           \
1116
      SymI_NeedsProto(restFP)
1117
#endif
1118 1119

/* entirely bogus claims about types of these symbols */
1120
#define SymI_NeedsProto(vvv)  extern void vvv(void);
Ian Lynagh's avatar
Ian Lynagh committed
1121
#if defined(__PIC__) && defined(mingw32_HOST_OS) && defined(i386_HOST_ARCH)
1122 1123
#define SymE_HasProto(vvv)    SymE_HasProto(vvv);
#define SymE_NeedsProto(vvv)    extern void _imp__ ## vvv (void);
1124
#else
1125 1126
#define SymE_NeedsProto(vvv)  SymI_NeedsProto(vvv);
#define SymE_HasProto(vvv)    SymI_HasProto(vvv)
1127
#endif
1128 1129
#define SymI_HasProto(vvv) /**/
#define SymI_HasProto_redirect(vvv,xxx) /**/
1130
RTS_SYMBOLS
1131
RTS_RET_SYMBOLS
1132
RTS_POSIX_ONLY_SYMBOLS
1133
RTS_MINGW_ONLY_SYMBOLS
sof's avatar
sof committed
1134
RTS_CYGWIN_ONLY_SYMBOLS
1135
RTS_DARWIN_ONLY_SYMBOLS
1136
RTS_LIBGCC_SYMBOLS
1137
RTS_LIBFFI_SYMBOLS
1138 1139 1140 1141 1142
#undef SymI_NeedsProto
#undef SymI_HasProto
#undef SymI_HasProto_redirect
#undef SymE_HasProto
#undef SymE_NeedsProto
1143 1144 1145 1146 1147 1148 1149

#ifdef LEADING_UNDERSCORE
#define MAYBE_LEADING_UNDERSCORE_STR(s) ("_" s)
#else
#define MAYBE_LEADING_UNDERSCORE_STR(s) (s)
#endif

1150
#define SymI_HasProto(vvv) { MAYBE_LEADING_UNDERSCORE_STR(#vvv), \
1151
                    (void*)(&(vvv)) },
1152
#define SymE_HasProto(vvv) { MAYBE_LEADING_UNDERSCORE_STR(#vvv), \
Ian Lynagh's avatar
Ian Lynagh committed
1153
            (void*)DLL_IMPORT_DATA_REF(vvv) },
1154

1155 1156 1157 1158
#define SymI_NeedsProto(vvv) SymI_HasProto(vvv)
#define SymE_NeedsProto(vvv) SymE_HasProto(vvv)

// SymI_HasProto_redirect allows us to redirect references to one symbol to
1159
// another symbol.  See newCAF/newDynCAF for an example.
Ian Lynagh's avatar
Ian Lynagh committed
1160
#define SymI_HasProto_redirect(vvv,xxx)   \
1161 1162 1163
    { MAYBE_LEADING_UNDERSCORE_STR(#vvv), \
      (void*)(&(xxx)) },

1164
static RtsSymbolVal rtsSyms[] = {
1165
      RTS_SYMBOLS
1166
      RTS_RET_SYMBOLS
1167
      RTS_POSIX_ONLY_SYMBOLS
1168
      RTS_MINGW_ONLY_SYMBOLS
sof's avatar
sof committed
1169
      RTS_CYGWIN_ONLY_SYMBOLS
1170
      RTS_DARWIN_ONLY_SYMBOLS
1171
      RTS_LIBGCC_SYMBOLS
1172
      RTS_LIBFFI_SYMBOLS
1173 1174 1175 1176
#if defined(darwin_HOST_OS) && defined(i386_HOST_ARCH)
      // dyld stub code contains references to this,
      // but it should never be called because we treat
      // lazy pointers as nonlazy.
1177
      { "dyld_stub_binding_helper", (void*)0xDEADBEEF },
1178
#endif
1179 1180 1181
      { 0, 0 } /* sentinel */
};

1182

1183 1184 1185
/* -----------------------------------------------------------------------------
 * Insert symbols into hash tables, checking for duplicates.
 */
1186

1187
static void ghciInsertStrHashTable ( pathchar* obj_name,
1188
                                     HashTable *table,
1189
                                     char* key,
1190
                                     void *data
Ian Lynagh's avatar
Ian Lynagh committed
1191
                                   )
1192
{
Simon Marlow's avatar
Simon Marlow committed
1193 1194
   if (lookupHashTable(table, (StgWord)key) == NULL)
   {
1195 1196
      insertStrHashTable(table, (StgWord)key, data);
      return;
Simon Marlow's avatar
Simon Marlow committed
1197 1198
   }
   debugBelch(
1199 1200 1201 1202
      "\n\n"
      "GHCi runtime linker: fatal error: I found a duplicate definition for symbol\n"
      "   %s\n"
      "whilst processing object file\n"
1203
      "   %" PATH_FMT "\n"
1204 1205 1206 1207 1208 1209 1210 1211 1212
      "This could be caused by:\n"
      "   * Loading two different object files which export the same symbol\n"
      "   * Specifying the same object file twice on the GHCi command line\n"
      "   * An incorrect `package.conf' entry, causing some object to be\n"
      "     loaded twice.\n"
      "GHCi cannot safely continue in this situation.  Exiting now.  Sorry.\n"
      "\n",
      (char*)key,
      obj_name
Simon Marlow's avatar
Simon Marlow committed
1213
   );
1214
   stg_exit(1);
1215
}
1216 1217 1218
/* -----------------------------------------------------------------------------
 * initialize the object linker
 */
1219 1220 1221 1222


static int linker_init_done = 0 ;

1223
#if defined(OBJFORMAT_ELF) || defined(OBJFORMAT_MACHO)
1224
static void *dl_prog_handle;
1225 1226 1227 1228 1229
static regex_t re_invalid;
static regex_t re_realso;
#ifdef THREADED_RTS
static Mutex dl_mutex; // mutex to protect dlopen/dlerror critical section
#endif
1230
#endif
1231 1232 1233 1234

void
initLinker( void )
{
1235
    RtsSymbolVal *sym;
Simon Marlow's avatar
Simon Marlow committed
1236
#if defined(OBJFORMAT_ELF) || defined(OBJFORMAT_MACHO)
1237
    int compileResult;
Simon Marlow's avatar
Simon Marlow committed
1238
#endif
1239

1240 1241
    IF_DEBUG(linker, debugBelch("initLinker: start\n"));

1242 1243 1244
    /* Make initLinker idempotent, so we can call it
       before evey relevant operation; that means we
       don't need to initialise the linker separately */
Ian Lynagh's avatar
Ian Lynagh committed
1245 1246 1247
    if (linker_init_done == 1) {
        IF_DEBUG(linker, debugBelch("initLinker: idempotent return\n"));
        return;
1248 1249
    } else {
        linker_init_done = 1;
1250 1251
    }

Simon Marlow's avatar
Simon Marlow committed
1252
#if defined(THREADED_RTS) && (defined(OBJFORMAT_ELF) || defined(OBJFORMAT_MACHO))
1253 1254
    initMutex(&dl_mutex);
#endif
1255
    stablehash = allocStrHashTable();
1256 1257 1258 1259
    symhash = allocStrHashTable();

    /* populate the symbol table with stuff from the RTS */
    for (sym = rtsSyms; sym->lbl != NULL; sym++) {
1260
        ghciInsertStrHashTable(WSTR("(GHCi built-in symbols)"),
1261
                               symhash, sym->lbl, sym->addr);
Ian Lynagh's avatar
Ian Lynagh committed
1262
        IF_DEBUG(linker, debugBelch("initLinker: inserting rts symbol %s, %p\n", sym->lbl, sym->addr));
1263
    }
1264
#   if defined(OBJFORMAT_MACHO) && defined(powerpc_HOST_ARCH)
1265 1266 1267
    machoInitSymbolsWithoutUnderscore();
#   endif

1268
#   if defined(OBJFORMAT_ELF) || defined(OBJFORMAT_MACHO)
1269
#   if defined(RTLD_DEFAULT)
1270 1271
    dl_prog_handle = RTLD_DEFAULT;
#   else
1272
    dl_prog_handle = dlopen(NULL, RTLD_LAZY);
1273
#   endif /* RTLD_DEFAULT */
1274 1275

    compileResult = regcomp(&re_invalid,
1276
           "(([^ \t()])+\\.so([^ \t:()])*):([ \t])*(invalid ELF header|file too short)",
1277
           REG_EXTENDED);
Ian Lynagh's avatar
Ian Lynagh committed
1278 1279 1280
    if (compileResult != 0) {
        barf("Compiling re_invalid failed");
    }
1281
    compileResult = regcomp(&re_realso,
1282
           "(GROUP|INPUT) *\\( *([^ )]+)",
1283
           REG_EXTENDED);
Ian Lynagh's avatar
Ian Lynagh committed
1284 1285 1286
    if (compileResult != 0) {
        barf("Compiling re_realso failed");
    }
1287
#   endif
1288

1289
#if !defined(ALWAYS_PIC) && defined(x86_64_HOST_ARCH)
1290 1291 1292 1293 1294
    if (RtsFlags.MiscFlags.linkerMemBase != 0) {
        // User-override for mmap_32bit_base
        mmap_32bit_base = (void*)RtsFlags.MiscFlags.linkerMemBase;
    }
#endif