在OS X上初始化D运行时 [英] Initializing the D runtime on OS X
问题描述
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
this seems to be a longrunning issue with no imminent solution: 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,我都会遇到段错误.
There seems to be a problem with starting the d runtime in a d dylib loaded in a c program. Whenever I call Runtime.initialize() i get a segfault.
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 %d\n",(*fptr)());
}
}
return(0);
}
使用gcc编译,没有标志.
compiled with gcc, no flags.
d代码:
import core.runtime;
extern(C) int number() {
Runtime.initialize();
return(4);
}
使用dmd -shared编译
compiled with dmd -shared
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 ()
在OS X 10.7中完成的所有编译和调试
All compilation and debugging done in OS X 10.7
注意:如果Runtime.initialize();行被注释掉,库已加载并正确运行.
Note: if the Runtime.initialize(); line is commented out, the library is loaded and runs correctly.
推荐答案
现在已从github的最新druntime中修复了此问题
This is now fixed in the latest druntime from github
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