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

[brad]

Hi,

I'm using tcc as a back-end code generator for a custom scripting language and have some questions about in-memory compilation.

I was compiling to a memory block that I was allocating and keeping after deleting the compiler but was later getting crashes.  Debugging it I came to realize this was because the read/write/execute protection on the code segments was left intact, causing exceptions later when that memory was re-used by someone else.  Also, on Windows it seems the function table needs to be deleted (RtlDeleteFunctionTable). 

My fix for the moment at least is to not call tcc_delete until I'm finished with the in-memory code.

Questions:

1. Is it possible to keep, use and then release the compiled code after the initial compiler instance has been deleted (ie: after tcc_delete).    I couldn't see anything in the header file for this.

2. Assuming that I need to not tcc_delete until after the in-memory code has been released how much of the original compilation state is being held in memory?  eg: symbol tables, #defines, AST etc...  ie: would it be worth providing a way to disconnect the in-memory code from the compiler state in a way that all that cleanup can be done without the original compiler instance?

(sorry if my terminology is off-base, I'm very new to tcc)

Any help much appreciated.

Brad