llvm dev - Jun 2014 - [LLVMdev] LLVMgold.so in windows LLVM builds

I am trying to build LLVMgold.so on windows.
I came across this piece of code which includes “gold” source directory in
tools/CMakeLists.txt

if( LLVM_ENABLE_PIC )
# TODO: support other systems:
if( (CMAKE_SYSTEM_NAME STREQUAL "Linux")
OR (CMAKE_SYSTEM_NAME STREQUAL "FreeBSD") )
add_llvm_tool_subdirectory(gold)
else()
ignore_llvm_tool_subdirectory(gold)
endif()
else()
ignore_llvm_tool_subdirectory(gold)
endif()


This basically says, I cannot build LLVMgold.so on windows.
Any specific reasons for why this is the case?

--Sumanth G

Hi,

On 14 June 2014 00:26,  <sgundapa at codeaurora.org>
wrote:
> I am trying to build LLVMgold.so on windows.
> I came across this piece of code which includes “gold” source directory in
> tools/CMakeLists.txt
It seems to date from the original gold import in 2011, so it's
probably just from being careful.

Disabling the check is worth a try, though I think even the binutils
Windows linkers use something other than Linux's ELF. Theoretically,
it has a reasonable chance of working anyway, but you never know
whether we've smuggled something platform-specific in there.

Remember to also specify LLVM_BINUTILS_INCDIR! Took me ages to work
out why gold suddenly stopped being built last time.

Cheers.

Tim.

I tried building it on windows with some CMake changes.
But unfortunatelym my clang crashes when it tries to access the LLVMgold
(not able to open it).

I have CCed Rafeal and Nakamura who might know why gold plugin in not
supported on Windows platforms.

--Sumanth G
> Hi,
>
> On 14 June 2014 00:26,  <sgundapa at codeaurora.org> wrote:
>> I am trying to build LLVMgold.so on windows.
>> I came across this piece of code which includes “gold” source
>> directory in
>> tools/CMakeLists.txt
>
> It seems to date from the original gold import in 2011, so it's
> probably just from being careful.
>
> Disabling the check is worth a try, though I think even the binutils
> Windows linkers use something other than Linux's ELF. Theoretically,
> it has a reasonable chance of working anyway, but you never know
> whether we've smuggled something platform-specific in there.
>
> Remember to also specify LLVM_BINUTILS_INCDIR! Took me ages to work
> out why gold suddenly stopped being built last time.
>
> Cheers.
>
> Tim.
>