D에서 C API를 호출하는 방법에 대한 정보는 충분하지만 그 반대의 경우는 어떨까요? 일반적인 C 공유 라이브러리처럼 작동하는 D 라이브러리를 작성하려면 무엇을해야합니까?D에서 D API 구현 D
main.c를
extern(C)
{
int foo(int x)
{
return x*x;
}
}
이 순진하게 구축하고 GCC와 DMD 단지 링커 오류 결과 이러한 연결을 시도
extern int foo(int x);
void main() {
printf("foo(5)=%d\n",foo(5));
}
foo.d : 다음은 쉬운 경우이다.
GCC의 main.o를의 foo.o와 연결 :
doFoo.o: In function `no symbol':
doFoo.d:(.text+0x7): undefined reference to `_Dmodule_ref'
collect2: ld returned 1 exit status
DMD main.o를 foo.o와 연결 :
/usr/lib64/libphobos2.a(deh2_2eb_525.o): In function `_D2rt4deh213__eh_finddataFPvZPS2rt4deh213DHandlerTable':
src/rt/deh2.d:(.text._D2rt4deh213__eh_finddataFPvZPS2rt4deh213DHandlerTable+0xa): undefined reference to `_deh_beg'
src/rt/deh2.d:(.text._D2rt4deh213__eh_finddataFPvZPS2rt4deh213DHandlerTable+0x14): undefined reference to `_deh_beg'
src/rt/deh2.d:(.text._D2rt4deh213__eh_finddataFPvZPS2rt4deh213DHandlerTable+0x1e): undefined reference to `_deh_end'
src/rt/deh2.d:(.text._D2rt4deh213__eh_finddataFPvZPS2rt4deh213DHandlerTable+0x46): undefined reference to `_deh_end'
/usr/lib64/libphobos2.a(lifetime.o): In function `_D2rt8lifetime18_sharedStaticCtor9FZv':
src/rt/lifetime.d:(.text._D2rt8lifetime18_sharedStaticCtor9FZv+0x15): undefined reference to `_tlsend'
src/rt/lifetime.d:(.text._D2rt8lifetime18_sharedStaticCtor9FZv+0x29): undefined reference to `_tlsstart'
/usr/lib64/libphobos2.a(thread_a3_258.o): In function `_D4core6thread6Thread6__ctorMFPFZvmZC4core6thread6Thread':
src/core/thread.d:(.text._D4core6thread6Thread6__ctorMFPFZvmZC4core6thread6Thread+0x2b): undefined reference to `_tlsend'
src/core/thread.d:(.text._D4core6thread6Thread6__ctorMFPFZvmZC4core6thread6Thread+0x36): undefined reference to `_tlsstart'
/usr/lib64/libphobos2.a(thread_a3_258.o): In function `_D4core6thread6Thread6__ctorMFDFZvmZC4core6thread6Thread':
src/core/thread.d:(.text._D4core6thread6Thread6__ctorMFDFZvmZC4core6thread6Thread+0x28): undefined reference to `_tlsend'
src/core/thread.d:(.text._D4core6thread6Thread6__ctorMFDFZvmZC4core6thread6Thread+0x33): undefined reference to `_tlsstart'
/usr/lib64/libphobos2.a(thread_a3_258.o): In function `_D4core6thread6Thread6__ctorMFZC4core6thread6Thread':
src/core/thread.d:(.text._D4core6thread6Thread6__ctorMFZC4core6thread6Thread+0x26): undefined reference to `_tlsend'
src/core/thread.d:(.text._D4core6thread6Thread6__ctorMFZC4core6thread6Thread+0x31): undefined reference to `_tlsstart'
/usr/lib64/libphobos2.a(thread_a0_713.o): In function `thread_entryPoint':
src/core/thread.d:(.text.thread_entryPoint+0x36): undefined reference to `_tlsend'
src/core/thread.d:(.text.thread_entryPoint+0x41): undefined reference to `_tlsstart'
collect2: ld returned 1 exit status
--- errorlevel 1
음이, '우리가 매달고 떠나 지마 ... 오류는 무엇인가? – Mehrdad
링커 오류는 다음과 같습니다 :'foo.o : 함수에서 '기호 없음': foo.d :(. 텍스트 + 0x7) : 정의되지 않은 참조 '_Dmodule_ref'' –