Re: [Tinycc-devel] Question about in-memory compilation target

[grischka]

On 15.01.2024 00:51, Brad Robinson via Tinycc-devel wrote:
> Questions:
>
> 1. Is it possible to keep, use and then release the compiled code after the 
> initial compiler instance has been deleted

FYI below some version of libtcc_test.c to run without state.

Note the LoadDll is needed only when the exe itself was not
linked with msvcrt, i.e. to prevent it from being unloaded
in tccelf_delete.

-- gr

            void *mem; int size; HANDLE dll; DWORD xxx;

            if ((size = tcc_relocate(s, NULL)) < 0)
                return 1;
            tcc_relocate(s, mem = malloc(size));
            if (!(func = tcc_get_symbol(s, "foo")))
                return 1;
            dll = LoadLibrary("msvcrt.dll");
            tcc_delete(s);

            func(32);

            FreeLibrary(dll);
            VirtualProtect(mem, size, PAGE_READWRITE, &xxx);
            #if _WIN64
            RtlDeleteFunctionTable(*(RUNTIME_FUNCTION**)mem);
            #endif
            free(mem);
            return 0;