How to CosmoNim (GCC) on Solus Linux? (segfault)

Question

What methods or tools can I use to help figure out the below issue?

I'd like to use CosmoNim on Solus Linux. It works on other linux distributions, but produces executables that segfault when built on Solus Linux. CosmoNim works for me on Ubuntu just fine.

• CosmoNim is a Nim wrapper to use Cosmopolitan
• Cosmopolitan is a library and method to produce universal binaries built with GCC
• Nim is a transpiler to C (auto compiling with GCC)
• So CosmoNim should work out of the box on many linux distros (and does indeed work on Ubuntu)
• However, CosmoNim fails to make a functioning executable on Solus (the executable segfaults when run) before doing the objcopy to make the full universal executable.
• But! Cosmopolitan (directly using GCC) HelloWorld does work on Solus
• So Nim is either missing some compile or link flags for GCC or it's doing something it shouldn't for this process
• How can I make progress on figuring this out?

Upon using GDB, it reports the main() function for the segfault: $ gdb hello.elf ...

Program received signal SIGSEGV, Segmentation fault.
0x0000000000413005 in NimMain ()
121 N_CDECL(void, NimMain)(void) {

This is starting at that line 121 in the source file:

N_CDECL(void, NimMain)(void) {
        void (*volatile inner)(void);
        PreMain();
        inner = NimMainInner;
        initStackBottomWith((void *)&inner);
        (*inner)();
}

int main(int argc, char** args, char** env) {
        cmdLine = args;
        cmdCount = argc;
        gEnv = env;
        NimMain();
        return nim_program_result;
}

$ (gdb) info functions

121:    void NimMain(void);
117:    void NimMainInner(void);
137:    void NimMainModule(void);
108:    void PreMain(void);
102:    void PreMainInner(void);
129:    int main(int, char **, char **);

Any GDB/compiler utils wizards out there know how to introspect this?