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subr_ffi.cpp

/*
    Ypsilon Scheme System
    Copyright (c) 2004-2008 Y.FUJITA / LittleWing Company Limited.
    See license.txt for terms and conditions of use
*/

#include "core.h"
#include "vm.h"
#include "ffi.h"
#include "file.h"
#include "heap.h"
#include "subr.h"
#include "arith.h"
#include "violation.h"

// load-shared-object
scm_obj_t
subr_load_shared_object(VM* vm, int argc, scm_obj_t argv[])
{
    if (argc == 1) {
        if (STRINGP(argv[0])) {
            scm_string_t string = (scm_string_t)argv[0];
            void* hdl = load_shared_object(string);
            if (hdl) return uintptr_to_integer(vm->m_heap, (uintptr_t)hdl);
            invalid_argument_violation(vm, "load-shared-object", last_shared_object_error(), NULL, -1, argc, argv);
            return scm_undef;
        }
        wrong_type_argument_violation(vm, "load-shared-object", 0, "string", argv[0], argc, argv);
        return scm_undef;
    }
    wrong_number_of_arguments_violation(vm, "load-shared-object", 1, 1, argc, argv);
    return scm_undef;
}

// lookup-shared-object
scm_obj_t
subr_lookup_shared_object(VM* vm, int argc, scm_obj_t argv[])
{
    if (argc == 2) {
        void* hdl;
        if (exact_positive_integer_pred(argv[0])) {
            if (exact_integer_to_uintptr(argv[0], (uintptr_t*)&hdl) == false) {
                invalid_argument_violation(vm, "lookup-shared-object", "value out of bound,", argv[0], 0, argc, argv);
                return scm_undef;
            }
        } else {
            wrong_type_argument_violation(vm, "lookup-shared-object", 0, "shared object handle", argv[0], argc, argv);
            return scm_undef;
        }
        if (STRINGP(argv[1]) || SYMBOLP(argv[1])) {
            uintptr_t adrs = (uintptr_t)lookup_shared_object(hdl, argv[1]);
            if (adrs == 0) return scm_false;
            return uintptr_to_integer(vm->m_heap, adrs);
        }
        wrong_type_argument_violation(vm, "lookup-shared-object", 1, "string or symbol", argv[1], argc, argv);
        return scm_undef;
    }
    wrong_number_of_arguments_violation(vm, "lookup-shared-object", 2, 2, argc, argv);
    return scm_undef;
}

// call-shared-object->void
scm_obj_t
subr_call_shared_object_void(VM* vm, int argc, scm_obj_t argv[])
{
    if (argc >= 1) {
        void *func = NULL;
        if (exact_positive_integer_pred(argv[0])) {
            if (exact_integer_to_uintptr(argv[0], (uintptr_t*)&func) == false) {
                invalid_argument_violation(vm, "call-shared-object->void", "value out of bound,", argv[0], 0, argc, argv);
                return scm_undef;
            }
        } else {
            wrong_type_argument_violation(vm, "call-shared-object->void", 0, "c-function address", argv[0], argc, argv);
            return scm_undef;
        }
        if (argc - 1 <= FFI_MAX_ARGC) {
            c_stack_frame_t stack(vm);
            for (int i = 1; i < argc; i++) {
                const char* err = stack.push(argv[i]);
                if (err) {
                    wrong_type_argument_violation(vm, "call-shared-object->void", i, err, argv[i], argc, argv);
                    return scm_undef;
                }
            }
#if ARCH_IA32
            c_func_stub_intptr(func, stack.count(), stack.frame());
#elif ARCH_X64
            c_func_stub_intptr_x64(func, stack.count(), stack.sse_use(), stack.frame());
#else
            fatal("%s:%u ffi not supported on this build", __FILE__, __LINE__);
#endif
            vm->m_shared_object_errno = errno;
#if _MSC_VER
            vm->m_shared_object_win32_lasterror = GetLastError();
#endif
            return scm_unspecified;
        }
        invalid_argument_violation(vm, "call-shared-object->void", "too many arguments,", MAKEFIXNUM(argc), -1, argc, argv);
        return scm_undef;
    }
    wrong_number_of_arguments_violation(vm, "call-shared-object->void", 1, -1, argc, argv);
    return scm_undef;
}

// call-shared-object->int
scm_obj_t
subr_call_shared_object_int(VM* vm, int argc, scm_obj_t argv[])
{
    if (argc >= 1) {
        void *func = NULL;
        if (exact_positive_integer_pred(argv[0])) {
            if (exact_integer_to_uintptr(argv[0], (uintptr_t*)&func) == false) {
                invalid_argument_violation(vm, "call-shared-object->int", "value out of bound,", argv[0], 0, argc, argv);
                return scm_undef;
            }
        } else {
            wrong_type_argument_violation(vm, "call-shared-object->int", 0, "c-function address", argv[0], argc, argv);
            return scm_undef;
        }
        if (argc - 1 <= FFI_MAX_ARGC) {
            c_stack_frame_t stack(vm);
            for (int i = 1; i < argc; i++) {
                const char* err = stack.push(argv[i]);
                if (err) {
                    wrong_type_argument_violation(vm, "call-shared-object->int", i, err, argv[i], argc, argv);
                    return scm_undef;
                }
            }
            intptr_t retval;
#if ARCH_IA32
            retval = c_func_stub_intptr(func, stack.count(), stack.frame());
#elif ARCH_X64
            retval = c_func_stub_intptr_x64(func, stack.count(), stack.sse_use(), stack.frame());
#else
            fatal("%s:%u ffi not supported on this build", __FILE__, __LINE__);
#endif
            vm->m_shared_object_errno = errno;
#if _MSC_VER
            vm->m_shared_object_win32_lasterror = GetLastError();
#endif
            return int_to_integer(vm->m_heap, retval);
        }
        invalid_argument_violation(vm, "call-shared-object->int", "too many arguments,", MAKEFIXNUM(argc), -1, argc, argv);
        return scm_undef;
    }
    wrong_number_of_arguments_violation(vm, "call-shared-object->int", 1, -1, argc, argv);
    return scm_undef;
}

// call-shared-object->double
scm_obj_t
subr_call_shared_object_double(VM* vm, int argc, scm_obj_t argv[])
{
    if (argc >= 1) {
        void *func = NULL;
        if (exact_positive_integer_pred(argv[0])) {
            if (exact_integer_to_uintptr(argv[0], (uintptr_t*)&func) == false) {
                invalid_argument_violation(vm, "call-shared-object->double", "value out of bound,", argv[0], 0, argc, argv);
                return scm_undef;
            }
        } else {
            wrong_type_argument_violation(vm, "call-shared-object->double", 0, "c-function address", argv[0], argc, argv);
            return scm_undef;
        }
        if (argc - 1 <= FFI_MAX_ARGC) {
            c_stack_frame_t stack(vm);
            for (int i = 1; i < argc; i++) {
                const char* err = stack.push(argv[i]);
                if (err) {
                    wrong_type_argument_violation(vm, "call-shared-object->double", i, err, argv[i], argc, argv);
                    return scm_undef;
                }
            }
            double retval;
#if ARCH_IA32
            retval = c_func_stub_double(func, stack.count(), stack.frame());
#elif ARCH_X64
            retval = c_func_stub_double_x64(func, stack.count(), stack.sse_use(), stack.frame());
#else
            fatal("%s:%u ffi not supported on this build", __FILE__, __LINE__);
#endif
            vm->m_shared_object_errno = errno;
#if _MSC_VER
            vm->m_shared_object_win32_lasterror = GetLastError();
#endif
            return make_flonum(vm->m_heap, retval);
        }
        invalid_argument_violation(vm, "call-shared-object->double", "too many arguments,", MAKEFIXNUM(argc), -1, argc, argv);
        return scm_undef;
    }
    wrong_number_of_arguments_violation(vm, "call-shared-object->double", 1, -1, argc, argv);
    return scm_undef;
}

// call-shared-object->void*
scm_obj_t
subr_call_shared_object_intptr(VM* vm, int argc, scm_obj_t argv[])
{
    if (argc >= 1) {
        void *func = NULL;
        if (exact_positive_integer_pred(argv[0])) {
            if (exact_integer_to_uintptr(argv[0], (uintptr_t*)&func) == false) {
                invalid_argument_violation(vm, "call-shared-object->void*", "value out of bound,", argv[0], 0, argc, argv);
                return scm_undef;
            }
        } else {
            wrong_type_argument_violation(vm, "call-shared-object->void*", 0, "c-function address", argv[0], argc, argv);
            return scm_undef;
        }
        if (argc - 1 <= FFI_MAX_ARGC) {
            c_stack_frame_t stack(vm);
            for (int i = 1; i < argc; i++) {
                const char* err = stack.push(argv[i]);
                if (err) {
                    wrong_type_argument_violation(vm, "call-shared-object->void*", i, err, argv[i], argc, argv);
                    return scm_undef;
                }
            }
            intptr_t retval;
#if ARCH_IA32
            retval = c_func_stub_intptr(func, stack.count(), stack.frame());
#elif ARCH_X64
            retval = c_func_stub_intptr_x64(func, stack.count(), stack.sse_use(), stack.frame());
#else
            fatal("%s:%u ffi not supported on this build", __FILE__, __LINE__);
#endif
            vm->m_shared_object_errno = errno;
#if _MSC_VER
            vm->m_shared_object_win32_lasterror = GetLastError();
#endif
            return intptr_to_integer(vm->m_heap, retval);
        }
        invalid_argument_violation(vm, "call-shared-object->void*", "too many arguments,", MAKEFIXNUM(argc), -1, argc, argv);
        return scm_undef;
    }
    wrong_number_of_arguments_violation(vm, "call-shared-object->void*", 1, -1, argc, argv);
    return scm_undef;
}

// call-shared-object->char*
scm_obj_t
subr_call_shared_object_chars(VM* vm, int argc, scm_obj_t argv[])
{
    if (argc >= 1) {
        void *func = NULL;
        if (exact_positive_integer_pred(argv[0])) {
            if (exact_integer_to_uintptr(argv[0], (uintptr_t*)&func) == false) {
                invalid_argument_violation(vm, "call-shared-object->char*", "value out of bound,", argv[0], 0, argc, argv);
                return scm_undef;
            }
        } else {
            wrong_type_argument_violation(vm, "call-shared-object->char*", 0, "c-function address", argv[0], argc, argv);
            return scm_undef;
        }
        if (argc - 1 <= FFI_MAX_ARGC) {
            c_stack_frame_t stack(vm);
            for (int i = 1; i < argc; i++) {
                const char* err = stack.push(argv[i]);
                if (err) {
                    wrong_type_argument_violation(vm, "call-shared-object->char*", i, err, argv[i], argc, argv);
                    return scm_undef;
                }
            }
            uint8_t* p;
#if ARCH_IA32
            p = (uint8_t*)c_func_stub_intptr(func, stack.count(), stack.frame());
#elif ARCH_X64
            p = (uint8_t*)c_func_stub_intptr_x64(func, stack.count(), stack.sse_use(), stack.frame());
#else
            fatal("%s:%u ffi not supported on this build", __FILE__, __LINE__);
#endif
            vm->m_shared_object_errno = errno;
#if _MSC_VER
            vm->m_shared_object_win32_lasterror = GetLastError();
#endif
            if (p == NULL) return scm_false;
            int n = 0;
            while (p[n]) n++;
            return make_bvector_mapping(vm->m_heap, p, n);
        }
        invalid_argument_violation(vm, "call-shared-object->char*", "too many arguments,", MAKEFIXNUM(argc), -1, argc, argv);
        return scm_undef;
    }
    wrong_number_of_arguments_violation(vm, "call-shared-object->char*", 1, -1, argc, argv);
    return scm_undef;
}

#if _MSC_VER
    // stdcall-shared-object->void
    scm_obj_t
    subr_stdcall_shared_object_void(VM* vm, int argc, scm_obj_t argv[])
    {
        assert(sizeof(intptr_t) == sizeof(int));
        if (argc >= 1) {
            void *func = NULL;
            if (exact_positive_integer_pred(argv[0])) {
                if (exact_integer_to_uintptr(argv[0], (uintptr_t*)&func) == false) {
                    invalid_argument_violation(vm, "stdcall-shared-object->void", "value out of bound,", argv[0], 0, argc, argv);
                    return scm_undef;
                }
            } else {
                wrong_type_argument_violation(vm, "stdcall-shared-object->void", 0, "c-function address", argv[0], argc, argv);
                return scm_undef;
            }
            if (argc - 1 <= FFI_MAX_ARGC) {
                c_stack_frame_t stack(vm);
                for (int i = 1; i < argc; i++) {
                    const char* err = stack.push(argv[i]);
                    if (err) {
                        wrong_type_argument_violation(vm, "stdcall-shared-object->void", i, err, argv[i], argc, argv);
                        return scm_undef;
                    }
                }
                stdcall_func_stub_intptr(func, stack.count(), stack.frame());
                vm->m_shared_object_errno = errno;
                vm->m_shared_object_win32_lasterror = GetLastError();
                return scm_unspecified;
            }
            invalid_argument_violation(vm, "stdcall-shared-object->void", "too many arguments,", MAKEFIXNUM(argc), -1, argc, argv);
            return scm_undef;
        }
        wrong_number_of_arguments_violation(vm, "stdcall-shared-object->void", 1, -1, argc, argv);
        return scm_undef;
    }

    // stdcall-shared-object->int
    scm_obj_t
    subr_stdcall_shared_object_int(VM* vm, int argc, scm_obj_t argv[])
    {
        assert(sizeof(intptr_t) == sizeof(int));
        if (argc >= 1) {
            void *func = NULL;
            if (exact_positive_integer_pred(argv[0])) {
                if (exact_integer_to_uintptr(argv[0], (uintptr_t*)&func) == false) {
                    invalid_argument_violation(vm, "stdcall-shared-object->int", "value out of bound,", argv[0], 0, argc, argv);
                    return scm_undef;
                }
            } else {
                wrong_type_argument_violation(vm, "stdcall-shared-object->int", 0, "c-function address", argv[0], argc, argv);
                return scm_undef;
            }
            if (argc - 1 <= FFI_MAX_ARGC) {
                c_stack_frame_t stack(vm);
                for (int i = 1; i < argc; i++) {
                    const char* err = stack.push(argv[i]);
                    if (err) {
                        wrong_type_argument_violation(vm, "stdcall-shared-object->int", i, err, argv[i], argc, argv);
                        return scm_undef;
                    }
                }
                intptr_t retval = stdcall_func_stub_intptr(func, stack.count(), stack.frame());
                vm->m_shared_object_errno = errno;
                vm->m_shared_object_win32_lasterror = GetLastError();
                return int_to_integer(vm->m_heap, retval);
            }
            invalid_argument_violation(vm, "stdcall-shared-object->int", "too many arguments,", MAKEFIXNUM(argc), -1, argc, argv);
            return scm_undef;
        }
        wrong_number_of_arguments_violation(vm, "stdcall-shared-object->int", 1, -1, argc, argv);
        return scm_undef;
    }

    // stdcall-shared-object->double
    scm_obj_t
    subr_stdcall_shared_object_double(VM* vm, int argc, scm_obj_t argv[])
    {
        assert(sizeof(intptr_t) == sizeof(int));
        if (argc >= 1) {
            void *func = NULL;
            if (exact_positive_integer_pred(argv[0])) {
                if (exact_integer_to_uintptr(argv[0], (uintptr_t*)&func) == false) {
                    invalid_argument_violation(vm, "stdcall-shared-object->double", "value out of bound,", argv[0], 0, argc, argv);
                    return scm_undef;
                }
            } else {
                wrong_type_argument_violation(vm, "stdcall-shared-object->double", 0, "c-function address", argv[0], argc, argv);
                return scm_undef;
            }
            if (argc - 1 <= FFI_MAX_ARGC) {
                c_stack_frame_t stack(vm);
                for (int i = 1; i < argc; i++) {
                    const char* err = stack.push(argv[i]);
                    if (err) {
                        wrong_type_argument_violation(vm, "stdcall-shared-object->double", i, err, argv[i], argc, argv);
                        return scm_undef;
                    }
                }
                double retval = stdcall_func_stub_double(func, stack.count(), stack.frame());
                vm->m_shared_object_errno = errno;
                vm->m_shared_object_win32_lasterror = GetLastError();
                return make_flonum(vm->m_heap, retval);
            }
            invalid_argument_violation(vm, "stdcall-shared-object->double", "too many arguments,", MAKEFIXNUM(argc), -1, argc, argv);
            return scm_undef;
        }
        wrong_number_of_arguments_violation(vm, "stdcall-shared-object->double", 1, -1, argc, argv);
        return scm_undef;
    }

    // stdcall-shared-object->void*
    scm_obj_t
    subr_stdcall_shared_object_intptr(VM* vm, int argc, scm_obj_t argv[])
    {
        assert(sizeof(intptr_t) == sizeof(int));
        if (argc >= 1) {
            void *func = NULL;
            if (exact_positive_integer_pred(argv[0])) {
                if (exact_integer_to_uintptr(argv[0], (uintptr_t*)&func) == false) {
                    invalid_argument_violation(vm, "stdcall-shared-object->void*", "value out of bound,", argv[0], 0, argc, argv);
                    return scm_undef;
                }
            } else {
                wrong_type_argument_violation(vm, "stdcall-shared-object->void*", 0, "c-function address", argv[0], argc, argv);
                return scm_undef;
            }
            if (argc - 1 <= FFI_MAX_ARGC) {
                c_stack_frame_t stack(vm);
                for (int i = 1; i < argc; i++) {
                    const char* err = stack.push(argv[i]);
                    if (err) {
                        wrong_type_argument_violation(vm, "stdcall-shared-object->void*", i, err, argv[i], argc, argv);
                        return scm_undef;
                    }
                }
                intptr_t retval = stdcall_func_stub_intptr(func, stack.count(), stack.frame());
                vm->m_shared_object_errno = errno;
                vm->m_shared_object_win32_lasterror = GetLastError();
                return intptr_to_integer(vm->m_heap, retval);
            }
            invalid_argument_violation(vm, "stdcall-shared-object->void*", "too many arguments,", MAKEFIXNUM(argc), -1, argc, argv);
            return scm_undef;
        }
        wrong_number_of_arguments_violation(vm, "stdcall-shared-object->void*", 1, -1, argc, argv);
        return scm_undef;
    }

    // stdcall-shared-object->char*
    scm_obj_t
    subr_stdcall_shared_object_chars(VM* vm, int argc, scm_obj_t argv[])
    {
        assert(sizeof(intptr_t) == sizeof(int));
        if (argc >= 1) {
            void *func = NULL;
            if (exact_positive_integer_pred(argv[0])) {
                if (exact_integer_to_uintptr(argv[0], (uintptr_t*)&func) == false) {
                    invalid_argument_violation(vm, "stdcall-shared-object->char*", "value out of bound,", argv[0], 0, argc, argv);
                    return scm_undef;
                }
            } else {
                wrong_type_argument_violation(vm, "stdcall-shared-object->char*", 0, "c-function address", argv[0], argc, argv);
                return scm_undef;
            }
            if (argc - 1 <= FFI_MAX_ARGC) {
                c_stack_frame_t stack(vm);
                for (int i = 1; i < argc; i++) {
                    const char* err = stack.push(argv[i]);
                    if (err) {
                        wrong_type_argument_violation(vm, "stdcall-shared-object->char*", i, err, argv[i], argc, argv);
                        return scm_undef;
                    }
                }
                uint8_t* p = (uint8_t*)stdcall_func_stub_intptr(func, stack.count(), stack.frame());
                vm->m_shared_object_errno = errno;
                vm->m_shared_object_win32_lasterror = GetLastError();
                if (p == NULL) return scm_false;
                int n = 0;
                while (p[n]) n++;
                return make_bvector_mapping(vm->m_heap, p, n);
            }
            invalid_argument_violation(vm, "stdcall-shared-object->char*", "too many arguments,", MAKEFIXNUM(argc), -1, argc, argv);
            return scm_undef;
        }
        wrong_number_of_arguments_violation(vm, "stdcall-shared-object->char*", 1, -1, argc, argv);
        return scm_undef;
    }

#endif

// make-callback
scm_obj_t
subr_make_callback(VM* vm, int argc, scm_obj_t argv[])
{
    if (argc == 3) {
        if (exact_non_negative_integer_pred(argv[0])) {
            if (exact_non_negative_integer_pred(argv[1])) {
                if (CLOSUREP(argv[2])) {
                    return make_callback(vm, FIXNUM(argv[0]), FIXNUM(argv[1]), (scm_closure_t)argv[2]);
                }
                wrong_type_argument_violation(vm, "make-callback", 2, "closure", argv[2], argc, argv);
                return scm_undef;
            }
            wrong_type_argument_violation(vm, "make-callback", 1, "exact non-negative integer", argv[1], argc, argv);
            return scm_undef;
        }
        wrong_type_argument_violation(vm, "make-callback", 0, "exact non-negative integer", argv[0], argc, argv);
        return scm_undef;
    }
    wrong_number_of_arguments_violation(vm, "make-callback", 3, 3, argc, argv);
    return scm_undef;
}

// flonum->float
scm_obj_t
subr_flonum_to_float(VM* vm, int argc, scm_obj_t argv[])
{
#if ARCH_IA32
    if (argc == 1) {
        if (FLONUMP(argv[0])) {
            union {
                float f32;
                uintptr_t u32;
            } n;
            scm_flonum_t flonum = (scm_flonum_t)argv[0];
            n.f32 = flonum->value;
            return intptr_to_integer(vm->m_heap, n.u32);
        }
        wrong_type_argument_violation(vm, "flonum->float", 1, "flonum", argv[1], argc, argv);
        return scm_undef;
    }
    wrong_number_of_arguments_violation(vm, "flonum->float", 1, 1, argc, argv);
    return scm_undef;
#elif ARCH_X64
    if (argc == 1) {
        if (FLONUMP(argv[0])) {
            scm_flonum_t flonum = (scm_flonum_t)argv[0];
            return make_flonum_32bit(vm->m_heap, flonum->value);
        }
        wrong_type_argument_violation(vm, "flonum->float", 1, "flonum", argv[1], argc, argv);
        return scm_undef;
    }
    wrong_number_of_arguments_violation(vm, "flonum->float", 1, 1, argc, argv);
    return scm_undef;
#else
    fatal("%s:%u ffi not supported on this build", __FILE__, __LINE__);
#endif
}

// shared-object-errno
scm_obj_t
subr_shared_object_errno(VM* vm, int argc, scm_obj_t argv[])
{
    if (argc == 0) return int_to_integer(vm->m_heap, vm->m_shared_object_errno);
    if (argc == 1) {
        if (exact_integer_pred(argv[0])) {
            int val;
            if (exact_integer_to_int(argv[0], &val)) {
                errno = val;
                vm->m_shared_object_errno = val;
                return scm_unspecified;
            }
            invalid_argument_violation(vm, "shared-object-errno", "value out of range,", argv[0], 0, argc, argv);
        }
        wrong_type_argument_violation(vm, "shared-object-errno", 0, "exact integer", argv[0], argc, argv);
        return scm_undef;
    }
    wrong_number_of_arguments_violation(vm, "shared-object-errno", 0, 1, argc, argv);
    return scm_undef;
}

// shared-object-win32-last-error
scm_obj_t
subr_shared_object_win32_lasterror(VM* vm, int argc, scm_obj_t argv[])
{
    if (argc == 0) return int_to_integer(vm->m_heap, vm->m_shared_object_win32_lasterror);
    if (argc == 1) {
        if (exact_integer_pred(argv[0])) {
            uint32_t val;
            if (exact_integer_to_uint32(argv[0], &val)) {
#if _MSC_VER
                SetLastError(val);
#endif
                vm->m_shared_object_win32_lasterror = val;
                return scm_unspecified;
            }
            invalid_argument_violation(vm, "shared-object-win32-lasterror", "value out of range,", argv[0], 0, argc, argv);
        }
        wrong_type_argument_violation(vm, "shared-object-win32-lasterror", 0, "exact integer", argv[0], argc, argv);
        return scm_undef;
    }
    wrong_number_of_arguments_violation(vm, "shared-object-win32-lasterror", 0, 1, argc, argv);
    return scm_undef;
}

void init_subr_ffi(object_heap_t* heap)
{
    #define DEFSUBR(SYM, FUNC)  heap->intern_system_subr(SYM, FUNC)

    DEFSUBR("load-shared-object", subr_load_shared_object);
    DEFSUBR("lookup-shared-object", subr_lookup_shared_object);
    DEFSUBR("call-shared-object->void", subr_call_shared_object_void);
    DEFSUBR("call-shared-object->int", subr_call_shared_object_int);
    DEFSUBR("call-shared-object->double", subr_call_shared_object_double);
    DEFSUBR("call-shared-object->void*", subr_call_shared_object_intptr);
    DEFSUBR("call-shared-object->intptr", subr_call_shared_object_intptr);
    DEFSUBR("call-shared-object->char*", subr_call_shared_object_chars);
#if _MSC_VER
    DEFSUBR("stdcall-shared-object->void", subr_stdcall_shared_object_void);
    DEFSUBR("stdcall-shared-object->int", subr_stdcall_shared_object_int);
    DEFSUBR("stdcall-shared-object->double", subr_stdcall_shared_object_double);
    DEFSUBR("stdcall-shared-object->void*", subr_stdcall_shared_object_intptr);
    DEFSUBR("stdcall-shared-object->intptr", subr_stdcall_shared_object_intptr);
    DEFSUBR("stdcall-shared-object->char*", subr_stdcall_shared_object_chars);
#else
    DEFSUBR("stdcall-shared-object->void", subr_call_shared_object_void);
    DEFSUBR("stdcall-shared-object->int", subr_call_shared_object_int);
    DEFSUBR("stdcall-shared-object->double", subr_call_shared_object_double);
    DEFSUBR("stdcall-shared-object->void*", subr_call_shared_object_intptr);
    DEFSUBR("stdcall-shared-object->intptr", subr_call_shared_object_intptr);
    DEFSUBR("stdcall-shared-object->char*", subr_call_shared_object_chars);
#endif
    DEFSUBR("make-callback", subr_make_callback);
    DEFSUBR("flonum->float", subr_flonum_to_float);
    DEFSUBR("shared-object-errno", subr_shared_object_errno);
    DEFSUBR("shared-object-win32-lasterror", subr_shared_object_win32_lasterror);
}

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