If you have osx arm64 and gcc (not clang) installed...

[Derek Fawcus]

On Tuesday, 7 April 2026 at 22:56:37 UTC, Walter Bright wrote:
> Can you please compile this program:
> ```C
> #include <stdio.h>
>
> extern int foo(int *pi);
>
> int main() { int i = 7; return foo(&i); }
> ```
> with:
>
> gcc -c -femit-dwarf-unwind=always test.c
>
>
> and pls send me the resulting .o file. The reason I ask is 
> because it turns out that gcc on the Mac is actually clang, and 
> clang won't emit the dwarf eh_frame stuff. I need an example to 
> make sure I'm doing it right.

Do you specifically want what gcc on osx on ARM64 would produce, 
or gcc on ARM64?

I have an ARM mac to hand, and have an ARM64 Linux VM within it, 
containing gcc.  So I could compile under the latter.  You could 
also, just install UTM and then an ARM64 debian VM within it.

Alternately, there is a guide for compiling gcc 13 from scratch 
for ARM online, intended specifically for the osx scenario.  You 
could follow that.  I did for a non ARM device simply as I wanted 
a copy of gcc-13 which wasn't packaged for my Linux system.