It is being worked on in the arm64 branch on GitHub.
It requires some additional compiler support within Factor, but since Doug and
I both now have shiny new M1 computers, we both have good incentive to get it
working.
If you have knowledge of ARM assembly and want to help, that would be great.
I *think* it can work under Rosetta2, with some library dependency limitations.
Best,
John.
> On Nov 22, 2020, at 10:25 AM, Steve Davies <st...@telviva.co.za> wrote:
>
>
> Hi,
>
> What would it take to build Factor for the MacOS M1 (arm64) systems?
>
> I do see in the code that there is some stuff for Linux ARM, which I think is
> actually complete (I'll try to build it on a Raspberry Pi tomorrow). There
> is also some stuff in build.sh for Apple iPhone/IPad hardware with arm64
> processor, but as far as I can see this is not complete.
>
> What is the state of Factor on arm? Was arm64 ever attempted?
>
> I guess to get it built requires some blend of the Darwin work and the arm
> stuff.
>
> I did some basic tinkering in the build side and got a little bit along.
> Well I got as far as errors...
>
> In file included from vm/master.hpp:116:
> vm/code_blocks.hpp:74:33: error: no member named 'flush_icache' in namespace
> 'factor'
> void flush_icache() { factor::flush_icache((cell)this, size()); }
> ~~~~~~~~^
> And etc. Well that's no surprise. Is there any insight or porting guide as
> to what Factor needs to run in a new environment like this?
>
> Thanks,
> Steve
>
> ---------------------
>
> diff --git a/GNUmakefile b/GNUmakefile
> index babefb19e9..2012f20bf8 100644
> --- a/GNUmakefile
> +++ b/GNUmakefile
> @@ -188,6 +188,10 @@ macosx-x86-64:
> macosx-x86-fat:
> $(MAKE) $(ALL) macosx.app CONFIG=vm/Config.macosx.x86.fat
>
> +macosx-arm64-64:
> + $(MAKE) $(ALL) macosx.app CONFIG=vm/Config.macosx.arm64.64
> +
> linux-x86-32:
> $(MAKE) $(ALL) CONFIG=vm/Config.linux.x86.32
>
> diff --git a/build.sh b/build.sh
> index 490c9ac02a..9b32d4d87d 100755
> --- a/build.sh
> +++ b/build.sh
> @@ -299,6 +299,7 @@ find_architecture() {
> i86pc) ARCH=x86;;
> amd64) ARCH=x86;;
> ppc64) ARCH=ppc;;
> + arm64) ARCH=arm64;;
> *86) ARCH=x86;;
> *86_64) ARCH=x86;;
> aarch64) ARCH=arm64;;
> diff --git a/vm/master.hpp b/vm/master.hpp
> index bac9e5f7ed..86edfaa628 100644
> --- a/vm/master.hpp
> +++ b/vm/master.hpp
> @@ -64,6 +64,9 @@
> // Detect target CPU type
> #if defined(__arm__)
> #define FACTOR_ARM
> +#elif defined(__arm64__)
> +#define FACTOR_ARM
> +#define FACTOR_64
> #elif defined(__amd64__) || defined(__x86_64__) || defined(_M_AMD64)
> #define FACTOR_AMD64
> #define FACTOR_64
> diff --git a/vm/platform.hpp b/vm/platform.hpp
> index c72b7b6334..8c4b39012a 100644
> --- a/vm/platform.hpp
> +++ b/vm/platform.hpp
> @@ -22,6 +22,8 @@
> #include "os-macosx-x86.32.hpp"
> #elif defined(FACTOR_AMD64)
> #include "os-macosx-x86.64.hpp"
> + #elif defined(FACTOR_ARM)
> + #include "os-macosx-arm64-64.hpp"
> #else
> #error "Unsupported Mac OS X flavor"
> #endif
>
> I also made a vm/os-macosx-arm64-64.hpp but of course I'm now already out of
> my depth since I have no understanding of the Factor implementation.
>
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