macOS 12 (Monterey) compatibility

[adriweb]

UPDATE June 2022:
Just download the latest release, everything is ready to use :)

UPDATE MARCH 2022:
You can simply replace your local fasmg binary from the one in the upstream release at the bottom of https://flatassembler.net/download.php (flat assembler g). The binary will be in the source/macos/x64 folder.

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The program fasmg (used as assembler and linker in the toolchain) is known not to work correctly anymore when run on macOS 12 (Monterey) due to a memory allocation issue.

There is no fix yet however a workaround exists, which consists in injecting GuardMalloc to fasmg when running it.

To do so automatically in the toolchain:

• Open the meta/makefile.mk with a text editor, located in your toolchain installation folder (for example inside ~/CEdev)
• Replace the FASMGLD definition (line 83 currently) by FASMGLD = DYLD_INSERT_LIBRARIES=/usr/lib/libgmalloc.dylib $(call NATIVEPATH,$(BIN)/fasmg)

This has only been tested on Intel macs so far, not Apple Silicon (M1 etc) yet.

[Meorge]

This workaround didn't work for me.
My lines 80-85 of meta/makefile.mk:

QUOTE_ARG = "$(subst ",',$1)"#'
else
NATIVEPATH = $(subst \,/,$1)
FASMGLD = DYLD_INSERT_LIBRARIES=/usr/lib/libgmalloc.dylib $(call NATIVEPATH,$(BIN)/fasmg)
CONVBIN = $(call NATIVEPATH,$(BIN)/convbin)
CONVIMG = $(call NATIVEPATH,$(BIN)/convimg)

Running make for the hello_world example code yields the following output:

➜  hello_world make
[compiling] src/main.c
[convimg] icon.png
[linking] bin/DEMO.bin
Error: not enough memory to complete the assembly.
make: *** [bin/DEMO.bin] Error 3

I'm on an Intel iMac running macOS Monterey 12.2.1, using v9.2.2 of the toolchain (latest as of this post).

[adriweb]

We'll have to check if the lib in question is present, maybe it's not there by default (without Xcode?). Although that would mean make wouldn't have worked... so I'm not sure what's going on.

Ping me on IRC/Discord when you're available so we can investigate all that a bit more.

[Meorge]

For others who find this thread: we determined that, at least on my computer, disabling SIP along with the instructions provided in the original post allowed it to complete successfully.

[adriweb]

Well, SIP is enabled for me and everything works just fine, so it must be something else... but so far we don't know what.

18:37:15 [:~] % csrutil status
System Integrity Protection status: enabled.

Doesn't hurt (well...) to try with SIP disabled if someone else runs into the same issue though.

That said, upstream fasmg may have an actual fix for the issue: https://board.flatassembler.net/topic.php?t=22003

[adriweb]

An actual solution was found upstream, and I've tested it successfully on my macOS setup :D

I suppose we'll be able to have it for the next toolchain release.