llvm dev - Jan 2013 - [LLVMdev] generating executable file from .ll files

Hi,
I'm writing a front-end for llvm with java. my front-end produces .ll
files. Then I use the following commands to convert these files to an
executable file:
!. for each .ll file I use 'llvm-as file.ll' to create  a bitcode file
2. use 'llvm-ld -o executable my-bitcode-files -L/usr/lib/i386-linux-gnu
-lstdc++' to generate  an executable file
then when I run the executable file, I get the following error:

LLVM ERROR: Program used external function '_Znwm' which could not be
resolved!

what should I do to resolve this issue?
Any help would be appreciated
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Hi Ali,

 > I'm writing a front-end for llvm with java. my front-end produces .ll
files.
> Then I use the following commands to convert these files to an executable
file:
> !. for each .ll file I use 'llvm-as file.ll' to create  a bitcode
file
> 2. use 'llvm-ld -o executable my-bitcode-files
-L/usr/lib/i386-linux-gnu
> -lstdc++' to generate  an executable file
add -native otherwise it doesn't create a real executable, only a wrapper
script around the linked bitcode.
> then when I run the executable file, I get the following error:
>
> LLVM ERROR: Program used external function '_Znwm' which could not
be resolved!
>
> what should I do to resolve this issue?
An alternative is to use llc to compile each .ll into a .s file, then do:
   gcc -o executable all-the-.s-files -L/usr/lib/i386-linux-gnu -lstdc++

You could instead use an LLVM aware linker (eg the gold plugin) if you want link
time optimization.

Ciao, Duncan.

On Jan 12, 2013, at 13:01 , Duncan Sands <baldrick at free.fr> wrote:
> You could instead use an LLVM aware linker (eg the gold plugin) if you want
link
Can that build for OS X and/or iOS?

-- 
Rick