wasm32-unknown-unknown: Fix undefined malloc/free/calloc symbols (#275) #2
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…cos#275) As discussed in gyscos#250, in some cases the definitions of `malloc`, `free`, and `calloc` are used but don't get linked in, leading to undefined symbols (i.e. reference to the symbol in "env"). I was not able to determine exactly why this is happening, but it seems to be related to `malloc`, `calloc`, and `free` being defined as inline functions. When building in debug mode there are undefined symbols; when building in release mode there are not, presumably because the functions are inlined. Switching to macros avoids issues of inlining and fixes this issue for me.
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As discussed in gyscos#250, in some cases the definitions of
malloc,free, andcallocare used but don't get linked in, leading to undefined symbols (i.e. reference to the symbol in "env").I was not able to determine exactly why this is happening, but it seems to be related to
malloc,calloc, andfreebeing defined as inline functions. When building in debug mode there are undefined symbols; when building in release mode there are not, presumably because the functions are inlined.Switching to macros avoids issues of inlining and fixes this issue for me.