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/* -----------------------------------------------------------------------------
 *
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 * (c) The GHC Team, 2000-2004
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 *
 * RTS Object Linker
 *
 * ---------------------------------------------------------------------------*/

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#if 0
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#include "PosixSource.h"
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#endif
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/* Linux needs _GNU_SOURCE to get RTLD_DEFAULT from <dlfcn.h> and
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   MREMAP_MAYMOVE from <sys/mman.h>.
 */
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#if defined(__linux__)  || defined(__GLIBC__)
#define _GNU_SOURCE 1
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#endif

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#include "Rts.h"
#include "HsFFI.h"
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#include "sm/Storage.h"
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#include "Stats.h"
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#include "Hash.h"
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#include "LinkerInternals.h"
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#include "RtsUtils.h"
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#include "Trace.h"
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#include "StgPrimFloat.h" // for __int_encodeFloat etc.
#include "Stable.h"

#if !defined(mingw32_HOST_OS)
#include "posix/Signals.h"
#endif
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// get protos for is*()
#include <ctype.h>

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#ifdef HAVE_SYS_TYPES_H
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#include <sys/types.h>
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#endif

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#include <inttypes.h>
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#include <stdlib.h>
#include <string.h>
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#include <stdio.h>
#include <assert.h>
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#ifdef HAVE_SYS_STAT_H
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#include <sys/stat.h>
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#endif
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#if defined(HAVE_DLFCN_H)
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#include <dlfcn.h>
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#endif
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#if defined(cygwin32_HOST_OS)
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#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

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#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
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 * 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.
 */
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#define USE_MMAP
#include <fcntl.h>
#include <sys/mman.h>
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#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif

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#endif

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#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)
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#  define OBJFORMAT_ELF
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#  include <regex.h>    // regex is already used by dlopen() so this is OK
                        // to use here without requiring an additional lib
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#elif defined(cygwin32_HOST_OS) || defined (mingw32_HOST_OS)
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#  define OBJFORMAT_PEi386
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#  include <windows.h>
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#  include <math.h>
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#elif defined(darwin_HOST_OS)
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#  define OBJFORMAT_MACHO
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#  include <regex.h>
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#  include <mach/machine.h>
#  include <mach-o/fat.h>
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#  include <mach-o/loader.h>
#  include <mach-o/nlist.h>
#  include <mach-o/reloc.h>
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#if !defined(HAVE_DLFCN_H)
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#  include <mach-o/dyld.h>
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#endif
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#if defined(powerpc_HOST_ARCH)
#  include <mach-o/ppc/reloc.h>
#endif
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#if defined(x86_64_HOST_ARCH)
#  include <mach-o/x86_64/reloc.h>
#endif
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#endif

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#if defined(x86_64_HOST_ARCH) && defined(darwin_HOST_OS)
#define ALWAYS_PIC
#endif

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/* Hash table mapping symbol names to Symbol */
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static /*Str*/HashTable *symhash;
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/* Hash table mapping symbol names to StgStablePtr */
static /*Str*/HashTable *stablehash;

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/* List of currently loaded objects */
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ObjectCode *objects = NULL;     /* initially empty */
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static HsInt loadOc( ObjectCode* oc );
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static ObjectCode* mkOc( pathchar *path, char *image, int imageSize,
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                         char *archiveMemberName
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#ifndef USE_MMAP
#ifdef darwin_HOST_OS
                       , int misalignment
#endif
#endif
                       );

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// 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;
}


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#if defined(OBJFORMAT_ELF)
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static int ocVerifyImage_ELF    ( ObjectCode* oc );
static int ocGetNames_ELF       ( ObjectCode* oc );
static int ocResolve_ELF        ( ObjectCode* oc );
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#if defined(powerpc_HOST_ARCH) || defined(x86_64_HOST_ARCH) || defined(arm_HOST_ARCH)
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static int ocAllocateSymbolExtras_ELF ( ObjectCode* oc );
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#endif
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#elif defined(OBJFORMAT_PEi386)
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static int ocVerifyImage_PEi386 ( ObjectCode* oc );
static int ocGetNames_PEi386    ( ObjectCode* oc );
static int ocResolve_PEi386     ( ObjectCode* oc );
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static void *lookupSymbolInDLLs ( unsigned char *lbl );
static void zapTrailingAtSign   ( unsigned char *sym );
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#elif defined(OBJFORMAT_MACHO)
static int ocVerifyImage_MachO    ( ObjectCode* oc );
static int ocGetNames_MachO       ( ObjectCode* oc );
static int ocResolve_MachO        ( ObjectCode* oc );
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#ifndef USE_MMAP
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static int machoGetMisalignment( FILE * );
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#endif
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#if defined(powerpc_HOST_ARCH) || defined(x86_64_HOST_ARCH)
static int ocAllocateSymbolExtras_MachO ( ObjectCode* oc );
#endif
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#ifdef powerpc_HOST_ARCH
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static void machoInitSymbolsWithoutUnderscore( void );
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#endif
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#endif
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/* 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.
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 *
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 * 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
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 *
 * 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);
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 */
#define X86_64_ELF_NONPIC_HACK 1
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/* 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)
 */
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#if !defined(ALWAYS_PIC) && defined(x86_64_HOST_ARCH)
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#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

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static void *mmap_32bit_base = (void *)MMAP_32BIT_BASE_DEFAULT;
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#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

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/* -----------------------------------------------------------------------------
 * Built-in symbols from the RTS
 */

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typedef struct _RtsSymbolVal {
    char   *lbl;
    void   *addr;
} RtsSymbolVal;

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#define Maybe_Stable_Names      SymI_HasProto(stg_mkWeakzh)                     \
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                                SymI_HasProto(stg_mkWeakNoFinalizzerzh)         \
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                                SymI_HasProto(stg_mkWeakForeignEnvzh)           \
                                SymI_HasProto(stg_makeStableNamezh)             \
                                SymI_HasProto(stg_finalizzeWeakzh)
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#if !defined (mingw32_HOST_OS)
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#define RTS_POSIX_ONLY_SYMBOLS                  \
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      SymI_HasProto(__hscore_get_saved_termios) \
      SymI_HasProto(__hscore_set_saved_termios) \
      SymI_HasProto(shutdownHaskellAndSignal)   \
      SymI_HasProto(signal_handlers)            \
      SymI_HasProto(stg_sig_install)            \
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      SymI_HasProto(rtsTimerSignal)             \
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      SymI_HasProto(atexit)                     \
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      SymI_NeedsProto(nocldstop)
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#endif
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#if defined (cygwin32_HOST_OS)
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#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
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 * exports; sigh.
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 */
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#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)
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#elif defined(mingw32_HOST_OS)
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#define RTS_POSIX_ONLY_SYMBOLS  /**/
#define RTS_CYGWIN_ONLY_SYMBOLS /**/
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#if HAVE_GETTIMEOFDAY
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#define RTS_MINGW_GETTIMEOFDAY_SYM SymI_NeedsProto(gettimeofday)
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#else
#define RTS_MINGW_GETTIMEOFDAY_SYM /**/
#endif

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#if HAVE___MINGW_VFPRINTF
#define RTS___MINGW_VFPRINTF_SYM SymI_HasProto(__mingw_vfprintf)
#else
#define RTS___MINGW_VFPRINTF_SYM /**/
#endif

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#if defined(i386_HOST_ARCH)
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#define RTS_WIN32_ONLY(X) X
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#else
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#define RTS_WIN32_ONLY(X) /**/
#endif

#if defined(x86_64_HOST_ARCH)
#define RTS_WIN64_ONLY(X) X
#else
#define RTS_WIN64_ONLY(X) /**/
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#endif

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/* These are statically linked from the mingw libraries into the ghc
   executable, so we have to employ this hack. */
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#define RTS_MINGW_ONLY_SYMBOLS                           \
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      SymI_HasProto(stg_asyncReadzh)                     \
      SymI_HasProto(stg_asyncWritezh)                    \
      SymI_HasProto(stg_asyncDoProczh)                   \
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      SymI_HasProto(getWin32ProgArgv)                    \
      SymI_HasProto(setWin32ProgArgv)                    \
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      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)                               \
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      RTS_WIN32_ONLY(SymI_NeedsProto(_alloca))           \
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      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)                             \
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      RTS___MINGW_VFPRINTF_SYM                           \
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      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)                               \
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      SymI_HasProto(erf)                                 \
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      SymI_HasProto(erfc)                                \
      SymI_HasProto(erff)                                \
      SymI_HasProto(erfcf)                               \
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      SymI_HasProto(memcpy)                              \
      SymI_HasProto(rts_InstallConsoleEvent)             \
      SymI_HasProto(rts_ConsoleHandlerDone)              \
      SymI_NeedsProto(mktime)                            \
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      RTS_WIN32_ONLY(SymI_NeedsProto(_imp___timezone))   \
      RTS_WIN32_ONLY(SymI_NeedsProto(_imp___tzname))     \
      RTS_WIN32_ONLY(SymI_NeedsProto(_imp__tzname))      \
      RTS_WIN32_ONLY(SymI_NeedsProto(_imp___iob))        \
      RTS_WIN32_ONLY(SymI_NeedsProto(_imp___osver))      \
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      SymI_NeedsProto(localtime)                         \
      SymI_NeedsProto(gmtime)                            \
      SymI_NeedsProto(opendir)                           \
      SymI_NeedsProto(readdir)                           \
      SymI_NeedsProto(rewinddir)                         \
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      RTS_WIN32_ONLY(SymI_NeedsProto(_imp____mb_cur_max)) \
      RTS_WIN32_ONLY(SymI_NeedsProto(_imp___pctype))     \
      RTS_WIN32_ONLY(SymI_NeedsProto(__chkstk))          \
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      RTS_WIN64_ONLY(SymI_NeedsProto(__imp___iob_func))  \
      RTS_WIN64_ONLY(SymI_NeedsProto(___chkstk_ms))      \
      RTS_WIN64_ONLY(SymI_NeedsProto(__imp_localeconv))  \
      RTS_WIN64_ONLY(SymI_NeedsProto(__imp_islower))     \
      RTS_WIN64_ONLY(SymI_NeedsProto(__imp_isspace))     \
      RTS_WIN64_ONLY(SymI_NeedsProto(__imp_isxdigit))    \
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      RTS_WIN64_ONLY(SymI_HasProto(close))               \
      RTS_WIN64_ONLY(SymI_HasProto(read))                \
      RTS_WIN64_ONLY(SymI_HasProto(dup))                 \
      RTS_WIN64_ONLY(SymI_HasProto(dup2))                \
      RTS_WIN64_ONLY(SymI_HasProto(write))               \
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      SymI_NeedsProto(getpid)                            \
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      RTS_WIN64_ONLY(SymI_HasProto(access))              \
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      SymI_HasProto(chmod)                               \
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      RTS_WIN64_ONLY(SymI_HasProto(creat))               \
      RTS_WIN64_ONLY(SymI_HasProto(umask))               \
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      SymI_HasProto(unlink)                              \
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      RTS_WIN64_ONLY(SymI_NeedsProto(__imp__errno))      \
      RTS_WIN64_ONLY(SymI_NeedsProto(ftruncate64))       \
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      RTS_WIN64_ONLY(SymI_HasProto(setmode))             \
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      RTS_WIN64_ONLY(SymI_NeedsProto(__imp__wstat64))    \
      RTS_WIN64_ONLY(SymI_NeedsProto(__imp__fstat64))    \
      RTS_WIN64_ONLY(SymI_NeedsProto(__imp__wsopen))     \
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      RTS_WIN64_ONLY(SymI_HasProto(__imp__environ))      \
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      RTS_WIN64_ONLY(SymI_NeedsProto(__imp_GetFileType))                 \
      RTS_WIN64_ONLY(SymI_NeedsProto(__imp_GetLastError))                \
      RTS_WIN64_ONLY(SymI_NeedsProto(__imp_QueryPerformanceFrequency))   \
      RTS_WIN64_ONLY(SymI_NeedsProto(__imp_QueryPerformanceCounter))     \
      RTS_WIN64_ONLY(SymI_NeedsProto(__imp_GetTickCount))                \
      RTS_WIN64_ONLY(SymI_NeedsProto(__imp_WaitForSingleObject))         \
      RTS_WIN64_ONLY(SymI_NeedsProto(__imp_PeekConsoleInputA))           \
      RTS_WIN64_ONLY(SymI_NeedsProto(__imp_ReadConsoleInputA))           \
      RTS_WIN64_ONLY(SymI_NeedsProto(__imp_PeekNamedPipe))               \
      RTS_WIN64_ONLY(SymI_NeedsProto(__imp__isatty))                     \
      RTS_WIN64_ONLY(SymI_NeedsProto(__imp_select))                      \
      RTS_WIN64_ONLY(SymI_HasProto(isatty))                              \
      RTS_WIN64_ONLY(SymI_NeedsProto(__imp__get_osfhandle))              \
      RTS_WIN64_ONLY(SymI_NeedsProto(__imp_GetConsoleMode))              \
      RTS_WIN64_ONLY(SymI_NeedsProto(__imp_SetConsoleMode))              \
      RTS_WIN64_ONLY(SymI_NeedsProto(__imp_FlushConsoleInputBuffer))     \
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      RTS_WIN64_ONLY(SymI_HasProto(free))                                \
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      RTS_WIN64_ONLY(SymI_NeedsProto(raise))                             \
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      RTS_WIN64_ONLY(SymI_NeedsProto(_getpid))                           \
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      RTS_WIN64_ONLY(SymI_HasProto(getc))                                \
      RTS_WIN64_ONLY(SymI_HasProto(ungetc))                              \
      RTS_WIN64_ONLY(SymI_HasProto(puts))                                \
      RTS_WIN64_ONLY(SymI_HasProto(putc))                                \
      RTS_WIN64_ONLY(SymI_HasProto(putchar))                             \
      RTS_WIN64_ONLY(SymI_HasProto(fputc))                               \
      RTS_WIN64_ONLY(SymI_HasProto(fread))                               \
      RTS_WIN64_ONLY(SymI_HasProto(fwrite))                              \
      RTS_WIN64_ONLY(SymI_HasProto(ferror))                              \
      RTS_WIN64_ONLY(SymI_HasProto(printf))                              \
      RTS_WIN64_ONLY(SymI_HasProto(fprintf))                             \
      RTS_WIN64_ONLY(SymI_HasProto(sprintf))                             \
      RTS_WIN64_ONLY(SymI_HasProto(vsprintf))                            \
      RTS_WIN64_ONLY(SymI_HasProto(sscanf))                              \
      RTS_WIN64_ONLY(SymI_HasProto(ldexp))                               \
      RTS_WIN64_ONLY(SymI_HasProto(strlen))                              \
      RTS_WIN64_ONLY(SymI_HasProto(strnlen))                             \
      RTS_WIN64_ONLY(SymI_HasProto(strchr))                              \
      RTS_WIN64_ONLY(SymI_HasProto(strtol))                              \
      RTS_WIN64_ONLY(SymI_HasProto(strerror))                            \
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      RTS_WIN64_ONLY(SymI_HasProto(memchr))                              \
      RTS_WIN64_ONLY(SymI_HasProto(memcmp))                              \
      RTS_WIN64_ONLY(SymI_HasProto(wcscpy))                              \
      RTS_WIN64_ONLY(SymI_HasProto(wcslen))                              \
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      RTS_WIN64_ONLY(SymI_HasProto(_lseeki64))                           \
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      RTS_WIN64_ONLY(SymI_HasProto(_wchmod))                             \
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      RTS_WIN64_ONLY(SymI_HasProto(closesocket))                         \
      RTS_WIN64_ONLY(SymI_HasProto(send))                                \
      RTS_WIN64_ONLY(SymI_HasProto(recv))                                \
      RTS_WIN64_ONLY(SymI_HasProto(bsearch))                             \
      RTS_WIN64_ONLY(SymI_HasProto(CommandLineToArgvW))                  \
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      RTS_WIN64_ONLY(SymI_HasProto(CreateBitmap))                        \
      RTS_WIN64_ONLY(SymI_HasProto(CreateBitmapIndirect))                \
      RTS_WIN64_ONLY(SymI_HasProto(CreateCompatibleBitmap))              \
      RTS_WIN64_ONLY(SymI_HasProto(CreateDIBPatternBrushPt))             \
      RTS_WIN64_ONLY(SymI_HasProto(CreateDIBitmap))                      \
      RTS_WIN64_ONLY(SymI_HasProto(SetBitmapDimensionEx))                \
      RTS_WIN64_ONLY(SymI_HasProto(GetBitmapDimensionEx))                \
      RTS_WIN64_ONLY(SymI_HasProto(GetStockObject))                      \
      RTS_WIN64_ONLY(SymI_HasProto(GetObjectW))                          \
      RTS_WIN64_ONLY(SymI_HasProto(DeleteObject))                        \
      RTS_WIN64_ONLY(SymI_HasProto(SetDIBits))                           \
      RTS_WIN64_ONLY(SymI_HasProto(GetDIBits))                           \
      RTS_WIN64_ONLY(SymI_HasProto(CreateSolidBrush))                    \
      RTS_WIN64_ONLY(SymI_HasProto(CreateHatchBrush))                    \
      RTS_WIN64_ONLY(SymI_HasProto(CreatePatternBrush))                  \
      RTS_WIN64_ONLY(SymI_HasProto(CreateFontW))                         \
      RTS_WIN64_ONLY(SymI_HasProto(AngleArc)) \
      RTS_WIN64_ONLY(SymI_HasProto(Arc)) \
      RTS_WIN64_ONLY(SymI_HasProto(ArcTo)) \
      RTS_WIN64_ONLY(SymI_HasProto(BeginPath)) \
      RTS_WIN64_ONLY(SymI_HasProto(BitBlt)) \
      RTS_WIN64_ONLY(SymI_HasProto(CancelDC)) \
      RTS_WIN64_ONLY(SymI_HasProto(Chord)) \
      RTS_WIN64_ONLY(SymI_HasProto(CloseFigure)) \
      RTS_WIN64_ONLY(SymI_HasProto(CombineRgn)) \
      RTS_WIN64_ONLY(SymI_HasProto(CreateCompatibleDC)) \
      RTS_WIN64_ONLY(SymI_HasProto(CreateEllipticRgn)) \
      RTS_WIN64_ONLY(SymI_HasProto(CreateEllipticRgnIndirect)) \
      RTS_WIN64_ONLY(SymI_HasProto(CreatePen)) \
      RTS_WIN64_ONLY(SymI_HasProto(CreatePolygonRgn)) \
      RTS_WIN64_ONLY(SymI_HasProto(CreateRectRgn)) \
      RTS_WIN64_ONLY(SymI_HasProto(CreateRectRgnIndirect)) \
      RTS_WIN64_ONLY(SymI_HasProto(CreateRoundRectRgn)) \
      RTS_WIN64_ONLY(SymI_HasProto(DeleteDC)) \
      RTS_WIN64_ONLY(SymI_HasProto(Ellipse)) \
      RTS_WIN64_ONLY(SymI_HasProto(EndPath)) \
      RTS_WIN64_ONLY(SymI_HasProto(EqualRgn)) \
      RTS_WIN64_ONLY(SymI_HasProto(ExtSelectClipRgn)) \
      RTS_WIN64_ONLY(SymI_HasProto(FillPath)) \
      RTS_WIN64_ONLY(SymI_HasProto(FillRgn)) \
      RTS_WIN64_ONLY(SymI_HasProto(FlattenPath)) \
      RTS_WIN64_ONLY(SymI_HasProto(FrameRgn)) \
      RTS_WIN64_ONLY(SymI_HasProto(GetArcDirection)) \
      RTS_WIN64_ONLY(SymI_HasProto(GetBkColor)) \
      RTS_WIN64_ONLY(SymI_HasProto(GetBkMode)) \
      RTS_WIN64_ONLY(SymI_HasProto(GetBrushOrgEx)) \
      RTS_WIN64_ONLY(SymI_HasProto(GetCurrentObject)) \
      RTS_WIN64_ONLY(SymI_HasProto(GetDCOrgEx)) \
      RTS_WIN64_ONLY(SymI_HasProto(GetGraphicsMode)) \
      RTS_WIN64_ONLY(SymI_HasProto(GetMiterLimit)) \
      RTS_WIN64_ONLY(SymI_HasProto(GetPolyFillMode)) \
      RTS_WIN64_ONLY(SymI_HasProto(GetRgnBox)) \
      RTS_WIN64_ONLY(SymI_HasProto(GetStretchBltMode)) \
      RTS_WIN64_ONLY(SymI_HasProto(GetTextAlign)) \
      RTS_WIN64_ONLY(SymI_HasProto(GetTextCharacterExtra)) \
      RTS_WIN64_ONLY(SymI_HasProto(GetTextColor)) \
      RTS_WIN64_ONLY(SymI_HasProto(GetTextExtentPoint32W)) \
      RTS_WIN64_ONLY(SymI_HasProto(InvertRgn)) \
      RTS_WIN64_ONLY(SymI_HasProto(LineTo)) \
      RTS_WIN64_ONLY(SymI_HasProto(MaskBlt)) \
      RTS_WIN64_ONLY(SymI_HasProto(MoveToEx)) \
      RTS_WIN64_ONLY(SymI_HasProto(OffsetRgn)) \
      RTS_WIN64_ONLY(SymI_HasProto(PaintRgn)) \
      RTS_WIN64_ONLY(SymI_HasProto(PathToRegion)) \
      RTS_WIN64_ONLY(SymI_HasProto(Pie)) \
      RTS_WIN64_ONLY(SymI_HasProto(PlgBlt)) \
      RTS_WIN64_ONLY(SymI_HasProto(PolyBezier)) \
      RTS_WIN64_ONLY(SymI_HasProto(PolyBezierTo)) \
      RTS_WIN64_ONLY(SymI_HasProto(Polygon)) \
      RTS_WIN64_ONLY(SymI_HasProto(Polyline)) \
      RTS_WIN64_ONLY(SymI_HasProto(PolylineTo)) \
      RTS_WIN64_ONLY(SymI_HasProto(PtInRegion)) \
      RTS_WIN64_ONLY(SymI_HasProto(Rectangle)) \
      RTS_WIN64_ONLY(SymI_HasProto(RectInRegion)) \
      RTS_WIN64_ONLY(SymI_HasProto(RestoreDC)) \
      RTS_WIN64_ONLY(SymI_HasProto(RoundRect)) \
      RTS_WIN64_ONLY(SymI_HasProto(SaveDC)) \
      RTS_WIN64_ONLY(SymI_HasProto(SelectClipPath)) \
      RTS_WIN64_ONLY(SymI_HasProto(SelectClipRgn)) \
      RTS_WIN64_ONLY(SymI_HasProto(SelectObject)) \
      RTS_WIN64_ONLY(SymI_HasProto(SelectPalette)) \
      RTS_WIN64_ONLY(SymI_HasProto(SetArcDirection)) \
      RTS_WIN64_ONLY(SymI_HasProto(SetBkColor)) \
      RTS_WIN64_ONLY(SymI_HasProto(SetBkMode)) \
      RTS_WIN64_ONLY(SymI_HasProto(SetBrushOrgEx)) \
      RTS_WIN64_ONLY(SymI_HasProto(SetGraphicsMode)) \
      RTS_WIN64_ONLY(SymI_HasProto(SetMiterLimit)) \
      RTS_WIN64_ONLY(SymI_HasProto(SetPolyFillMode)) \
      RTS_WIN64_ONLY(SymI_HasProto(SetStretchBltMode)) \
      RTS_WIN64_ONLY(SymI_HasProto(SetTextAlign)) \
      RTS_WIN64_ONLY(SymI_HasProto(SetTextCharacterExtra)) \
      RTS_WIN64_ONLY(SymI_HasProto(SetTextColor)) \
      RTS_WIN64_ONLY(SymI_HasProto(StretchBlt)) \
      RTS_WIN64_ONLY(SymI_HasProto(StrokeAndFillPath)) \
      RTS_WIN64_ONLY(SymI_HasProto(StrokePath)) \
      RTS_WIN64_ONLY(SymI_HasProto(TextOutW)) \
      RTS_WIN64_ONLY(SymI_HasProto(timeGetTime)) \
      RTS_WIN64_ONLY(SymI_HasProto(WidenPath)) \
      RTS_WIN64_ONLY(SymI_HasProto(GetFileSecurityW)) \
      RTS_WIN64_ONLY(SymI_HasProto(RegCloseKey)) \
      RTS_WIN64_ONLY(SymI_HasProto(RegConnectRegistryW)) \
      RTS_WIN64_ONLY(SymI_HasProto(RegCreateKeyExW)) \
      RTS_WIN64_ONLY(SymI_HasProto(RegCreateKeyW)) \
      RTS_WIN64_ONLY(SymI_HasProto(RegDeleteKeyW)) \
      RTS_WIN64_ONLY(SymI_HasProto(RegDeleteValueW)) \
      RTS_WIN64_ONLY(SymI_HasProto(RegEnumKeyW)) \
      RTS_WIN64_ONLY(SymI_HasProto(RegEnumValueW)) \
      RTS_WIN64_ONLY(SymI_HasProto(RegFlushKey)) \
      RTS_WIN64_ONLY(SymI_HasProto(RegLoadKeyW)) \
      RTS_WIN64_ONLY(SymI_HasProto(RegNotifyChangeKeyValue)) \
      RTS_WIN64_ONLY(SymI_HasProto(RegOpenKeyExW)) \
      RTS_WIN64_ONLY(SymI_HasProto(RegOpenKeyW)) \
      RTS_WIN64_ONLY(SymI_HasProto(RegQueryInfoKeyW)) \
      RTS_WIN64_ONLY(SymI_HasProto(RegQueryValueExW)) \
      RTS_WIN64_ONLY(SymI_HasProto(RegQueryValueW)) \
      RTS_WIN64_ONLY(SymI_HasProto(RegReplaceKeyW)) \
      RTS_WIN64_ONLY(SymI_HasProto(RegRestoreKeyW)) \
      RTS_WIN64_ONLY(SymI_HasProto(RegSaveKeyW)) \
      RTS_WIN64_ONLY(SymI_HasProto(RegSetValueExW)) \
      RTS_WIN64_ONLY(SymI_HasProto(RegSetValueW)) \
      RTS_WIN64_ONLY(SymI_HasProto(RegUnLoadKeyW)) \
      RTS_WIN64_ONLY(SymI_NeedsProto(SHGetFolderPathW)) \
      RTS_WIN64_ONLY(SymI_NeedsProto(__imp_SetWindowLongPtrW)) \
      RTS_WIN64_ONLY(SymI_NeedsProto(__imp_GetWindowLongPtrW)) \
      RTS_WIN64_ONLY(SymI_NeedsProto(__imp_MenuItemFromPoint)) \
      RTS_WIN64_ONLY(SymI_NeedsProto(__imp_ChildWindowFromPoint)) \
      RTS_WIN64_ONLY(SymI_NeedsProto(__imp_ChildWindowFromPointEx)) \
      RTS_WIN64_ONLY(SymI_NeedsProto(__imp_DeleteObject)) \
      RTS_WIN64_ONLY(SymI_NeedsProto(__imp_UnmapViewOfFile)) \
      RTS_WIN64_ONLY(SymI_NeedsProto(__imp_CloseHandle)) \
      RTS_WIN64_ONLY(SymI_NeedsProto(__imp_FreeLibrary)) \
      RTS_WIN64_ONLY(SymI_NeedsProto(__imp_GetMessageW)) \
      RTS_WIN64_ONLY(SymI_NeedsProto(__imp_TranslateMessage)) \
      RTS_WIN64_ONLY(SymI_NeedsProto(__imp_DispatchMessageW)) \
      RTS_WIN64_ONLY(SymI_NeedsProto(__imp_DefWindowProcW)) \
      RTS_WIN64_ONLY(SymI_NeedsProto(__imp_GetDIBits)) \
      RTS_WIN64_ONLY(SymI_NeedsProto(__imp_GlobalAlloc)) \
      RTS_WIN64_ONLY(SymI_NeedsProto(__imp_GlobalFree)) \
      RTS_WIN64_ONLY(SymI_NeedsProto(__imp_CreateFileW)) \
      RTS_WIN64_ONLY(SymI_NeedsProto(__imp_WriteFile)) \
      RTS_WIN64_ONLY(SymI_NeedsProto(__imp_CreateCompatibleBitmap)) \
      RTS_WIN64_ONLY(SymI_NeedsProto(__imp_SelectObject)) \
      RTS_WIN64_ONLY(SymI_NeedsProto(__imp_Polygon)) \
      RTS_WIN64_ONLY(SymI_NeedsProto(__imp_FormatMessageW)) \
      RTS_WIN64_ONLY(SymI_NeedsProto(__imp__localtime64)) \
      RTS_WIN64_ONLY(SymI_NeedsProto(__imp__tzname)) \
      RTS_WIN64_ONLY(SymI_NeedsProto(__imp__timezone)) \
      RTS_WIN64_ONLY(SymI_NeedsProto(__imp_CreatePipe)) \
      RTS_WIN64_ONLY(SymI_NeedsProto(__imp_SetHandleInformation)) \
      RTS_WIN64_ONLY(SymI_NeedsProto(__imp_GetStdHandle)) \
      RTS_WIN64_ONLY(SymI_NeedsProto(__imp_GetCurrentProcess)) \
      RTS_WIN64_ONLY(SymI_NeedsProto(__imp_DuplicateHandle)) \
      RTS_WIN64_ONLY(SymI_NeedsProto(__imp_CreateProcessW)) \
      RTS_WIN64_ONLY(SymI_NeedsProto(__imp_TerminateProcess)) \
      RTS_WIN64_ONLY(SymI_NeedsProto(__imp__open_osfhandle)) \
      RTS_WIN64_ONLY(SymI_NeedsProto(__imp_GetExitCodeProcess)) \
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      RTS_MINGW_GETTIMEOFDAY_SYM                         \
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      SymI_NeedsProto(closedir)
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#else
#define RTS_MINGW_ONLY_SYMBOLS /**/
#define RTS_CYGWIN_ONLY_SYMBOLS /**/
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#endif
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#if defined(darwin_HOST_OS) && HAVE_PRINTF_LDBLSTUB
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#define RTS_DARWIN_ONLY_SYMBOLS                             \
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     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)
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#else
#define RTS_DARWIN_ONLY_SYMBOLS
#endif

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#ifndef SMP
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# define MAIN_CAP_SYM SymI_HasProto(MainCapability)
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#else
# define MAIN_CAP_SYM
#endif
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#if !defined(mingw32_HOST_OS)
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#define RTS_USER_SIGNALS_SYMBOLS        \
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   SymI_HasProto(setIOManagerControlFd) \
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   SymI_HasProto(setIOManagerWakeupFd)  \
   SymI_HasProto(ioManagerWakeup)       \
   SymI_HasProto(blockUserSignals)      \
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   SymI_HasProto(unblockUserSignals)
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#else
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#define RTS_USER_SIGNALS_SYMBOLS        \
   SymI_HasProto(ioManagerWakeup)       \
   SymI_HasProto(sendIOManagerEvent)    \
   SymI_HasProto(readIOManagerEvent)    \
   SymI_HasProto(getIOManagerEvent)     \
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   SymI_HasProto(console_handler)
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#endif

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#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)
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#ifdef TABLES_NEXT_TO_CODE
#define RTS_RET_SYMBOLS /* nothing */
#else
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#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)                   \
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      SymI_HasProto(stg_ap_pppppp_ret)
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#endif

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/* Modules compiled with -ticky may mention ticky counters */
/* This list should marry up with the one in $(TOP)/includes/stg/Ticky.h */
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#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)                \
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      SymI_HasProto(ticky_slow_call_unevald)            \
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      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)                \
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      SymI_HasProto(RET_SEMI_loads_avoided)


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// On most platforms, the garbage collector rewrites references
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//      to small integer and char objects to a set of common, shared ones.
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//
// We don't do this when compiling to Windows DLLs at the moment because
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//      it doesn't support cross package data references well.
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//
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#if defined(COMPILING_WINDOWS_DLL)
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#define RTS_INTCHAR_SYMBOLS
#else
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#define RTS_INTCHAR_SYMBOLS                             \
      SymI_HasProto(stg_CHARLIKE_closure)               \
      SymI_HasProto(stg_INTLIKE_closure)
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#endif


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#define RTS_SYMBOLS                                     \
      Maybe_Stable_Names                                \
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      RTS_TICKY_SYMBOLS                                 \
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      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)                  \
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      MAIN_CAP_SYM                                      \
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      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)                         \
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      SymI_HasProto(sysErrorBelch)                      \
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      SymI_HasProto(stg_getMaskingStatezh)              \
      SymI_HasProto(stg_maskAsyncExceptionszh)          \
      SymI_HasProto(stg_maskUninterruptiblezh)          \
      SymI_HasProto(stg_catchzh)                        \
      SymI_HasProto(stg_catchRetryzh)                   \
      SymI_HasProto(stg_catchSTMzh)                     \
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      SymI_HasProto(stg_checkzh)                        \
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      SymI_HasProto(closure_flags)                      \
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      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)      \
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      SymI_HasProto(getGCStats)                         \
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      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)                         \
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      SymI_HasProto(stg_unpackClosurezh)                \
      SymI_HasProto(stg_getApStackValzh)                \
      SymI_HasProto(stg_getSparkzh)                     \
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      SymI_HasProto(stg_numSparkszh)                    \
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      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)                   \
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      SymI_HasProto(stg_labelThreadzh)                  \
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      SymI_HasProto(stg_newArrayzh)                     \
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      SymI_HasProto(stg_newArrayArrayzh)                     \
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      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)           \
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      SymI_HasProto(stg_casMutVarzh)                    \
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      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)                       \
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      SymI_HasProto(setNumCapabilities)                 \
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      SymI_HasProto(getNumberOfProcessors)              \
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      SymI_HasProto(resolveObjs)                        \
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      SymI_HasProto(stg_retryzh)                        \
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      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)                         \
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      SymI_HasProto(rts_unsafeGetMyCapability)          \
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      SymI_HasProto(rtsSupportsBoundThreads)            \
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      SymI_HasProto(rts_isProfiled)                     \
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      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)         \
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      SymI_HasProto(stg_BLOCKING_QUEUE_CLEAN_info)      \
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      SymI_HasProto(stg_BLOCKING_QUEUE_DIRTY_info)      \
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      SymI_HasProto(startTimer)                         \
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      SymI_HasProto(stg_MVAR_CLEAN_info)                \
      SymI_HasProto(stg_MVAR_DIRTY_info)                \
      SymI_HasProto(stg_IND_STATIC_info)                \
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      SymI_HasProto(stg_ARR_WORDS_info)                 \
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      SymI_HasProto(stg_MUT_ARR_PTRS_DIRTY_info)        \
      SymI_HasProto(stg_MUT_ARR_PTRS_FROZEN_info)       \
      SymI_HasProto(stg_MUT_ARR_PTRS_FROZEN0_info)      \
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      SymI_HasProto(stg_WEAK_info)                      \
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      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)        \
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      SymI_HasProto(unloadObj)                          \
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      SymI_HasProto(stg_unsafeThawArrayzh)              \
      SymI_HasProto(stg_waitReadzh)                     \
      SymI_HasProto(stg_waitWritezh)                    \
      SymI_HasProto(stg_writeTVarzh)                    \
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      SymI_HasProto(stg_yieldzh)                        \
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      SymI_NeedsProto(stg_interp_constr_entry)          \
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      SymI_HasProto(stg_arg_bitmaps)                    \
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      SymI_HasProto(large_alloc_lim)                    \
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      SymI_HasProto(g0)                                 \
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      SymI_HasProto(allocate)                           \
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      SymI_HasProto(allocateExec)                       \
      SymI_HasProto(freeExec)                           \
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      SymI_HasProto(getAllocations)                     \
      SymI_HasProto(revertCAFs)                         \
      SymI_HasProto(RtsFlags)                           \
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      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)                     \
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      SymI_HasProto(stg_traceCcszh)                     \
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      SymI_HasProto(stg_traceEventzh)                   \
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      SymI_HasProto(getMonotonicNSec)                   \
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      SymI_HasProto(lockFile)                           \
      SymI_HasProto(unlockFile)                         \
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      RTS_USER_SIGNALS_SYMBOLS                          \
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      RTS_INTCHAR_SYMBOLS
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// 64-bit support functions in libgcc.a
#if defined(__GNUC__) && SIZEOF_VOID_P <= 4
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#define RTS_LIBGCC_SYMBOLS                             \
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      SymI_NeedsProto(__divdi3)                        \
      SymI_NeedsProto(__udivdi3)                       \
      SymI_NeedsProto(__moddi3)                        \
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      SymI_NeedsProto(__umoddi3)                       \
      SymI_NeedsProto(__muldi3)                        \
      SymI_NeedsProto(__ashldi3)                       \
      SymI_NeedsProto(__ashrdi3)                       \
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      SymI_NeedsProto(__lshrdi3)                       \
      SymI_NeedsProto(__fixunsdfdi)
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#else
#define RTS_LIBGCC_SYMBOLS
#endif

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#if defined(darwin_HOST_OS) && defined(powerpc_HOST_ARCH)
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      // Symbols that don't have a leading underscore
      // on Mac OS X. They have to receive special treatment,
      // see machoInitSymbolsWithoutUnderscore()
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#define RTS_MACHO_NOUNDERLINE_SYMBOLS                   \
      SymI_NeedsProto(saveFP)                           \
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      SymI_NeedsProto(restFP)
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#endif
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/* entirely bogus claims about types of these symbols */
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#define SymI_NeedsProto(vvv)  extern void vvv(void);
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#if defined(COMPILING_WINDOWS_DLL)
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#define SymE_HasProto(vvv)    SymE_HasProto(vvv);
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#  if defined(x86_64_HOST_ARCH)
#    define SymE_NeedsProto(vvv)    extern void __imp_ ## vvv (void);
#  else
#    define SymE_NeedsProto(vvv)    extern void _imp__ ## vvv (void);
#  endif
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#else
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#define SymE_NeedsProto(vvv)  SymI_NeedsProto(vvv);
#define SymE_HasProto(vvv)    SymI_HasProto(vvv)
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#endif
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#define SymI_HasProto(vvv) /**/
#define SymI_HasProto_redirect(vvv,xxx) /**/
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RTS_SYMBOLS
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RTS_RET_SYMBOLS
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RTS_POSIX_ONLY_SYMBOLS
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RTS_MINGW_ONLY_SYMBOLS
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RTS_CYGWIN_ONLY_SYMBOLS
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RTS_DARWIN_ONLY_SYMBOLS
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RTS_LIBGCC_SYMBOLS
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RTS_LIBFFI_SYMBOLS
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#undef SymI_NeedsProto
#undef SymI_HasProto
#undef SymI_HasProto_redirect
#undef SymE_HasProto
#undef SymE_NeedsProto
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#ifdef LEADING_UNDERSCORE
#define MAYBE_LEADING_UNDERSCORE_STR(s) ("_" s)
#else
#define MAYBE_LEADING_UNDERSCORE_STR(s) (s)
#endif

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#define SymI_HasProto(vvv) { MAYBE_LEADING_UNDERSCORE_STR(#vvv), \
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                    (void*)(&(vvv)) },
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#define SymE_HasProto(vvv) { MAYBE_LEADING_UNDERSCORE_STR(#vvv), \
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            (void*)DLL_IMPORT_DATA_REF(vvv) },
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#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
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// another symbol.  See newCAF/newDynCAF for an example.
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#define SymI_HasProto_redirect(vvv,xxx)   \
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    { MAYBE_LEADING_UNDERSCORE_STR(#vvv), \
      (void*)(&(xxx)) },

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static RtsSymbolVal rtsSyms[] = {
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      RTS_SYMBOLS
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      RTS_RET_SYMBOLS
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      RTS_POSIX_ONLY_SYMBOLS
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      RTS_MINGW_ONLY_SYMBOLS
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      RTS_CYGWIN_ONLY_SYMBOLS
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      RTS_DARWIN_ONLY_SYMBOLS
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      RTS_LIBGCC_SYMBOLS
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      RTS_LIBFFI_SYMBOLS
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#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.
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      { "dyld_stub_binding_helper", (void*)0xDEADBEEF },
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#endif
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      { 0, 0 } /* sentinel */
};

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/* -----------------------------------------------------------------------------
 * Insert symbols into hash tables, checking for duplicates.
 */
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static void ghciInsertStrHashTable ( pathchar* obj_name,
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                                     HashTable *table,
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                                     char* key,
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                                     void *data
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                                   )
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{
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   if (lookupHashTable(table, (StgWord)key) == NULL)
   {
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      insertStrHashTable(table, (StgWord)key, data);
      return;
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   }
   debugBelch(
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      "\n\n"
      "GHCi runtime linker: fatal error: I found a duplicate definition for symbol\n"
      "   %s\n"
      "whilst processing object file\n"
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      "   %" PATH_FMT "\n"