[Vm-dev] [commit][3374] CogVm source as per VMMaker.oscog-eem.1349

[Ryan Macnak]

On Sat, Jun 13, 2015 at 12:17 AM, Esteban Lorenzano <estebanlm at gmail.com>
wrote:

>
>
> On 13 Jun 2015, at 03:38, Ryan Macnak <rmacnak at gmail.com> wrote:
>
> On Fri, Jun 12, 2015 at 12:43 AM, Esteban Lorenzano <estebanlm at gmail.com>
> wrote:
>>
>> extern extern sqInt superclassOf(sqInt classPointer);
>>
>> gcc 4.6.3 (Travis CI) also says this is an error.
>
> Apple LLVM version 5.1 (clang-503.0.40) (based on LLVM 3.4svn) is okay
> with it.
>
> ps: btw, I’m using clang to compile in mac since a lot of time and I do
>> not have problems, yes I needed to tweak a flag here and there, but not
>> much more… of course, I use “Apple LLVM version 6.0 (clang-600.0.54) (based
>> on LLVM 3.5svn)”, so is probably not the same...
>>
>
> What flags have you changed? We should adopt them or fix things so they
> aren't needed.
>
>
>
> I’m compiling with this:
>
> -D_FILE_OFFSET_BITS=64 -DNDEBUG -D_GNU_SOURCE -DLSB_FIRST
> -DHAVE_SYS_TIME_H -DHAVE_UUID_GENERATE -Wno-unused-parameter
> -mmacosx-version-min=10.5 -DHAVE_NANOSLEEP -O3 -fomit-frame-pointer
> -DDEBUGVM=0 -fpascal-strings -DCOGVM -Qunused-arguments -funroll-loops
> -DDEFAULT_IMAGE_NAME="Pharo.image" -Wno-unused-value -fmessage-length=0
> -DUSE_CORE_GRAPHICS -g0 -DBASE_HEADER_SIZE=4 -march=pentium-m
> -DBUILD_FOR_OSX -DENABLE_FAST_BLT -fasm-blocks -Wno-unused-variable
> -std=gnu99 -DCOGMTVM=0 -fwrapv -Wno-return-type -fno-inline-functions
> -fno-gcse -mfpmath=sse -arch i386 -mtune=prescott -falign-functions=16
> -DUSE_GLOBAL_STRUCT=0
>
> I think the only “CLANG Only” is:
>
> -fwrapv
>

That one fixes my VMs. Looks like it goes back to gcc 3.3, so it should be
safe to add to all the builds.

But I didn't need this before. Your merge with Eliot falls within the range
of commits where things stopped working. Are you aware of code from your
branch that relies on signed integer overflow?

Ryan
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