Re: D seems interesting, but...

[Gerry Weaver]

On Monday, 15 October 2012 at 07:12:03 UTC, Iain Buclaw wrote:

On 15 October 2012 04:10, Gerry Weaver <ger...@compvia.com> wrote:

Hello All,

I have been looking at D off and on for several years. Initially I worked through a very painful experience to get D compiling on Linux. After that experience, I concluded that I should wait for it to become more mature. Since then, I do a very simple test. I install the latest package and try to build "Hello World". I figure that if "Hello World" builds successfully, I will continue further. I have just downloaded the latest .deb package and installed it on Ubuntu 12.04 32bit. Once again it fails this incredibly simple test. I've read many discussions about how/why, has/hasn't, will/won't D hit the mainstream in programming languages. I think this situation may offer at least one data point. I'm struggling to think of any other language (and I use several) that won't build code out of the box. D seems to have a lot of potential, but this needs to be fixed. I am not asking for help on this. I honestly don't care what the solution is. I just wanted the D developers to know why at least one developer is not using the language. I sincerely hope that the situation will improve. I'm looking

forward to programming in D.

Thanks for your time,
-G



Here is the code:

import std.stdio;


void main()
{
  writeln("Hello, world!");
}

Here is the command:

dmd hello.d

Here is the output:

/usr/lib/i386-linux-gnu/libphobos2.a(dmain2_459_1a5.o): In function

`_D2rt6dmain24mainUiPPaZi7runMainMFZv':

src/rt/dmain2.d:(.text._D2rt6dmain24mainUiPPaZi7runMainMFZv+0x10): undefined

reference to `_Dmain'

/usr/lib/i386-linux-gnu/libphobos2.a(thread_18f_1b8.o): In function

`_D4core6thread6Thread6__ctorMFZC4core6thread6Thread':
src/core/thread.d:(.text._D4core6thread6Thread6__ctorMFZC4core6thread6Thread+0x1d):
undefined reference to `_tlsend'
src/core/thread.d:(.text._D4core6thread6Thread6__ctorMFZC4core6thread6Thread+0x24):
undefined reference to `_tlsstart'

/usr/lib/i386-linux-gnu/libphobos2.a(thread_19f_6e4.o): In function

`thread_attachThis':

src/core/thread.d:(.text.thread_attachThis+0xb7): undefined reference to

`_tlsstart'

src/core/thread.d:(.text.thread_attachThis+0xbc): undefined reference to

`_tlsend'

/usr/lib/i386-linux-gnu/libphobos2.a(thread_17d_1b8.o): In function

`_D4core6thread6Thread6__ctorMFPFZvkZC4core6thread6Thread':
src/core/thread.d:(.text._D4core6thread6Thread6__ctorMFPFZvkZC4core6thread6Thread+0x1d):
undefined reference to `_tlsend'
src/core/thread.d:(.text._D4core6thread6Thread6__ctorMFPFZvkZC4core6thread6Thread+0x27):
undefined reference to `_tlsstart'

/usr/lib/i386-linux-gnu/libphobos2.a(thread_17e_1b8.o): In function

`_D4core6thread6Thread6__ctorMFDFZvkZC4core6thread6Thread':
src/core/thread.d:(.text._D4core6thread6Thread6__ctorMFDFZvkZC4core6thread6Thread+0x1d):
undefined reference to `_tlsend'
src/core/thread.d:(.text._D4core6thread6Thread6__ctorMFDFZvkZC4core6thread6Thread+0x27):
undefined reference to `_tlsstart'

/usr/lib/i386-linux-gnu/libphobos2.a(deh2_43b_525.o): In function

`_D2rt4deh213__eh_finddataFPvZPS2rt4deh29FuncTable':
src/rt/deh2.d:(.text._D2rt4deh213__eh_finddataFPvZPS2rt4deh29FuncTable+0x4):
undefined reference to `_deh_beg'
src/rt/deh2.d:(.text._D2rt4deh213__eh_finddataFPvZPS2rt4deh29FuncTable+0xc):
undefined reference to `_deh_beg'
src/rt/deh2.d:(.text._D2rt4deh213__eh_finddataFPvZPS2rt4deh29FuncTable+0x13):
undefined reference to `_deh_end'
src/rt/deh2.d:(.text._D2rt4deh213__eh_finddataFPvZPS2rt4deh29FuncTable+0x36):
undefined reference to `_deh_end'

/usr/lib/i386-linux-gnu/libphobos2.a(thread_17a_713.o): In function

`thread_entryPoint':

src/core/thread.d:(.text.thread_entryPoint+0x64): undefined reference to

`_tlsend'

src/core/thread.d:(.text.thread_entryPoint+0x6a): undefined reference to

`_tlsstart'
collect2: ld returned 1 exit status
--- errorlevel 1

Try and paste the output of the following:

dmd -c hello.d
objdump -d hello.o


Regards

Hi,

Here you go.

hello.o:     file format elf32-i386


Disassembly of section .text:

00000000 <.text>:
   0:   b8 10 00 00 00          mov    $0x10,%eax
   5:   b9 00 00 00 00          mov    $0x0,%ecx
   a:   8b 11                   mov    (%ecx),%edx
   c:   89 10                   mov    %edx,(%eax)
   e:   89 01                   mov    %eax,(%ecx)
  10:   c3                      ret


Thanks,
-G