• Li Jie (16/16) Aug 13 2006 I dont know how to create a shared library using dmd or build(http://dso...
• clayasaurus (7/20) Aug 13 2006 On linux, DMD uses GCC as its linker so you'd just do something like...
• Li Jie (2/7) Aug 13 2006 Thanks, it is right.
• Anders Runesson (7/12) Aug 14 2006 Try adding the -fPIC flag, like so:
• Li Jie (30/31) Aug 15 2006 Thanks.
• Li Jie (2/4) Aug 15 2006 I try to write a ruby extension.

Li Jie <cpunion gmail.com> writes:

I dont know how to create a shared library using dmd or
build(http://dsource.org/projects/build).

I try to compile the D source files to .o, and link them:



I get som errors:
...ld: Test.so: undefined versioned symbol name _d_throw 4
...ld: failed to set dynamic section sizes: Bad value
collect2: ld returned 1 exit status

Other questions:
1.
How to link a shared library in dmd? I have a shared library, named libtest.so.
In gcc, I can do this:

In dmd, I don't know how to do that.

2.
On linux, where do I place the gc code? Like DllMain, See
"http://digitalmars.com/d/dll.html".

clayasaurus <clayasaurus gmail.com> writes:

Li Jie wrote:
 I dont know how to create a shared library using dmd or
build(http://dsource.org/projects/build).
 
 I try to compile the D source files to .o, and link them:


 

DMD can not create shared libraries on linux yet, but GDC can.

 
 Other questions:
 1.
 How to link a shared library in dmd? I have a shared library, named libtest.so.
 In gcc, I can do this:

 In dmd, I don't know how to do that.

On linux, DMD uses GCC as its linker so you'd just do something like...

dmd file.d -L-ltest

If I remember correctly. Or

dmd -c file.d
gcc file.o -o file -ltest

Li Jie <cpunion gmail.com> writes:

 On linux, DMD uses GCC as its linker so you'd just do something like...

 dmd file.d -L-ltest

 If I remember correctly. Or

 dmd -c file.d
 gcc file.o -o file -ltest

Thanks, it is right.

I will try gdc to create shared library.

Anders Runesson <anders runesson.info> writes:

s=C3=B6n 2006-08-13 klockan 18:31 +0000 skrev Li Jie:
 I dont know how to create a shared library using dmd or build(http://dsou=

rce.org/projects/build).
=20
 I try to compile the D source files to .o, and link them:



Try adding the -fPIC flag, like so:
gcc -o libTest.so -shared -fPIC *.o -lphobos

don't forget that libraries need to be named libMyLibName.so for the
linker to find them. (Note the "lib" in the beginning of the file name)

/Anders

Li Jie <cpunion gmail.com> writes:

 DMD can not create shared libraries on linux yet, but GDC can.

Thanks.

I try to use gdc, but I get some errors.

/*** CODE ***/
test.d:
extern(C){
export void test(){}
}

so.c:
static void _init(void) __attribute__((constructor));
static void _fini(void) __attribute__((destructor));

void gc_init();
void gc_term();
void _minit();
void _moduleCtor();
void _moduleUnitTests();

void _init(void){
  gc_init();
  _minit();
  _moduleCtor();
  _moduleUnitTests();
}

void _fini(void){
  gc_term();
}
/*** CODE END ***/

Compile:
gcc -c so.c
gdc -oTest.so so.o test.d -fPIC -shared

It passed. But when load it, some errors happend:
undefined symbol: _minit

Li Jie <cpunion gmail.com> writes:

 don't forget that libraries need to be named libMyLibName.so for the
 linker to find them. (Note the "lib" in the beginning of the file name)

I try to write a ruby extension.
In ruby, excute "require 'Test'", 'Test.so' will be loaded and function
'Init_Test' will be called.