编辑:这似乎是一个长期存在的问题,没有迫在眉睫的解决方案: http://d.puremagic.com/issues/show_bug.cgi?id=8133 http://www.digitalmars.com/d/archives/digitalmars/D/Ideas_for_runtime_loading_of_shared_libraries._154126.html http://lists.puremagic.com/pipermail/dmd-internals/2011-December/002853.html
在 c 程序中加载的 d dylib 中启动 d 运行时似乎存在问题。每当我调用 Runtime.initialize() 时,我都会得到一个段错误。
C 代码:
#include <stdio.h>
#include <dlfcn.h>
int main() {
void *library;
int (*fptr)();
library = dlopen("testlib.dylib", RTLD_LAZY);
if(library == NULL)
puts("couldn't load the library");
else {
*(void **)(&fptr) = dlsym(library,"number");
if(fptr == NULL) {
puts("couldn't load function");
}
else {
printf("the result is %dn",(*fptr)());
}
}
return(0);
}
使用 GCC 编译,没有标志。
d 代码:
import core.runtime;
extern(C) int number() {
Runtime.initialize();
return(4);
}
编译与 DMD 共享
回溯:
Program received signal EXC_BAD_ACCESS, Could not access memory.
Reason: 13 at address: 0x0000000000000000
0x000000010003de28 in __tls_get_addr ()
(gdb) bt
#0 0x000000010003de28 in __tls_get_addr ()
#1 0x000000010003cdfc in thread_attachThis ()
#2 0x000000010003ccb8 in thread_init ()
#3 0x000000010003e312 in gc_init ()
#4 0x0000000100044ff5 in rt_init ()
#5 0x000000010003b637 in D4core7runtime7Runtime10initializeFDFC6object9ThrowableZvZb ()
#6 0x0000000100034ee9 in number ()
#7 0x0000000100000e84 in main ()
所有编译和调试都在OS X 10.7中完成
注意:如果 Runtime.initialize(); 行被注释掉,则库将加载并正常运行。
这在 github 的最新运行时中得到了修复