__wasilibc_init_preopen not getting called at startup

[OhadRau]

Was encountering an assertion failure in fopen() and managed to trace it down to get_shared_map() where assert(global_map) would always fail. It seems like __wasilibc_init_preopen never initializes the global_map here causing get_shared_map (and by extension fopen) to always fail. As a quick fix, simply calling the init procedure when the global_map is NULL will work.

[sbc100]

__wasilibc_init_preopen is called unconditionally during _start which is defined in libc-bottom-half/crt/crt1.c.

Are you somehow not using (or not calling) the normal crt1.c start function?

[OhadRau]

Interesting, looks like _start was indeed not being called based on how I linked the file unless I explicitly added --entry=main to the wasm-ld flags. Thanks!