DUB fails to build a dynamic library on Linux
Hello,
I've created a simple db dynamic lib project.
dub.json:
{
"name": "node-d-sample",
"description": "A minimal D application.",
"copyright": "Copyright © 2014, gabor",
"authors": ["gabor"],
"dependencies": {
},
"libs": [ "phobos2" ],
"targetName": "node-d-sample",
"targetPath": "lib",
"targetType": "dynamicLibrary"
}
I have only one source, lib.d:
extern (C)
{
int ping()
{
return 555;
}
}
My system is a Mint x64, dub latest, dmd latest.
If I invoke "dub", then:
Building node-d-sample ~master configuration "library", build
type debug.
Compiling using dmd...
Linking...
/usr/bin/ld:
.dub/build/library-debug-linux.posix-x86_64-dmd_2066-44F775BF77E519551012EFF79429BBA3/node-d-sample.o:
relocation R_X86_64_32 against `.rodata' can not be used when
making a shared object; recompile with -fPIC
.dub/build/library-debug-linux.posix-x86_64-dmd_2066-44F775BF77E519551012EFF79429BBA3/node-d-sample.o:
error adding symbols: Bad value
collect2: error: ld returned 1 exit status
--- errorlevel 1
FAIL
.dub/build/library-debug-linux.posix-x86_64-dmd_2066-44F775BF77E519551012EFF79429BBA3/
node-d-sample dynamicLibrary
Error executing command run: dmd failed with exit code 1.
Re: DUB fails to build a dynamic library on Linux
On Sunday, 14 December 2014 at 16:06:25 UTC, Martin Nowak wrote:
On 12/14/2014 03:50 PM, Gabor Mezo wrote:
Hello,
I've created a simple db dynamic lib project.
https://github.com/D-Programming-Language/dub/issues/352
Thanks,
I've did this, it finally build, but something is still not good.
If I call externals from another application, and my D code
allocates anything on heap, the calling process crashes with
SIGSEV. I mean it works:
extern (C)
{
int ping()
{
return 555;
}
}
But it doesn't:
extern (C)
{
int ping()
{
try { throw new Exception("foo"); } catch
(Exception ex) { }
return 555;
}
}
or this one crashes too:
extern (C)
{
int ping()
{
auto foo = new Object();
return 555;
}
}
Re: DUB fails to build a dynamic library on Linux
I've opened an other thread instead, because this is a different issue. It's there: http://forum.dlang.org/thread/aycvoeaurrpmuehat...@forum.dlang.org#post-aycvoeaurrpmuehatdwp:40forum.dlang.org
Caller of dynamic library crashes with SIGSEV if D code allocates anything on heap.
Hello,
I've opened an other thread for this, because this is a different
issue.
Previous issue is there:
http://forum.dlang.org/thread/zzjeajhjpzhnvgxqu...@forum.dlang.org#post-vuzttuewxyvuihubgtas:40forum.dlang.org
The current issue is if I build a dynamic library with DUB and
call externals form another application, and my D code
allocates anything on heap, the calling process crashes with
SIGSEV.
I mean it works:
extern (C)
{
int ping()
{
return 555;
}
}
But it doesn't:
extern (C)
{
int ping()
{
try { throw new Exception("foo"); } catch
(Exception ex) { }
return 555;
}
}
or this one crashes too:
extern (C)
{
int ping()
{
auto foo = new Object();
return 555;
}
}
Re: DUB fails to build a dynamic library on Linux
Thank you for your quick help, that was it. I do (or at least I'm trying to do) hobbyist D programming as you guys, that's why I come here to cry at Sunday evening. :) Ok, I'm almost there. It builds with DUB/DMD, I can allocate stuff on the heap, so far so good. But if I invoke: dub --compiler=gdc then I got: Performing main compilation... dub build "node-d-sample" --arch=x86_64 --compiler=gdc "--build=release" Building package node-d-sample in /home/gabor/sandbox/node-d-sample/ Building node-d-sample ~master configuration "library", build type release. Running gdc... /usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/4.9/libgphobos2.a(minfo.o): relocation R_X86_64_32 against `_D32TypeInfo_APxS6object10ModuleInfo6__initZ' can not be used when making a shared object; recompile with -fPIC /usr/lib/gcc/x86_64-linux-gnu/4.9/libgphobos2.a: error adding symbols: Bad value collect2: error: ld returned 1 exit status FAIL .dub/build/library-release-linux.posix-x86_64-gdc_2065-33A38D9D3DC714C1501A18C957A2B35B/ node-d-sample dynamicLibrary Error executing command build: gdc failed with exit code 1. Exit code 2 Build complete -- 1 error, 0 warnings or: dub --compiler=ldmd2 then I got: Performing main compilation... dub build "node-d-sample" --arch=x86_64 --compiler=ldmd2 "--build=release" The determined compiler type "ldc" doesn't match the expected type "dmd". This will probably result in build errors. Building package node-d-sample in /home/gabor/sandbox/node-d-sample/ Building node-d-sample ~master configuration "library", build type release. Running ldmd2... /usr/bin/ld: /home/gabor/dev/ldc2-0.15.0-beta1-linux-x86_64/bin/../lib/libdruntime-ldc.a(eh.o): relocation R_X86_64_32 against `.rodata..str1' can not be used when making a shared object; recompile with -fPIC /home/gabor/dev/ldc2-0.15.0-beta1-linux-x86_64/bin/../lib/libdruntime-ldc.a: error adding symbols: Bad value collect2: error: ld returned 1 exit status Error: /usr/bin/gcc failed with status: 1 FAIL .dub/build/library-release-linux.posix-x86_64-ldc_2066-212B345732639D80C27025028ED586A2/ node-d-sample dynamicLibrary Error executing command build: ldmd2 failed with exit code 1. Exit code 2 Build complete -- 1 error, 0 warnings It seems DUB somehow eats dflags away for non DMD compilers. How the hell should I prevent this happen? Thanks.
Re: Caller of dynamic library crashes with SIGSEV if D code allocates anything on heap.
I's solved by ketmar: "did you called `rt_init()` for your dynamic library? you have to do that in the calling process. and don't forget to call `rt_term()` on exiting." Yea, I missed that. It works. Thanks.
Re: DUB fails to build a dynamic library on Linux
Actually I'm practicing D for about three months but this C interfacing mumbo jumbo is still missing for me. Ok, I'm go there if I'm stuck, thanks.
Re: Lost a new commercial user this week :(
On Sunday, 14 December 2014 at 20:44:17 UTC, Jacob Carlborg wrote: On 2014-12-14 09:37, Manu via Digitalmars-d wrote: They immediately made comments about goto-definition not working, and auto-completion not working reliably. I'm curious to know which tools they used to get autocompletion and go-to-definition to work with JavaScript. It's Webstorm. There you get auto-completion, go-to-definition, refactor, insanely superior debugger, anything that you can dream of. I'm not a Jetbrains sales manager, I'm just doing Node.js coding at my work. :)
