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

[brad]

Hi Michael,

Thanks, yep that's what I found too except I think that code doesn't run if you relocate to a user supplied block of memory (instead of the tcc managed one).  My problem was that tcc_run_free() wasn't run on my allocated code memory when I freed it - leaving pages that have been returned to the heap marked as read-only/executable.

Happy enough to just keep the compiler instance around for now, but a little concerned what else it might be holding onto in memory (ie: other remnants from the compile process).

Brad

On 2024-01-17 06:14, draco via Tinycc-devel wrote:

Is it possible to keep, use and then release the compiled code after
the initial compiler instance has been deleted (ie: after tcc_delete).

Actually I strugled with the same problem and found a partial solution:
If you look up the code in libtcc.c, in function tcc_delete is the line
    tcc_run_free(s1);
You have to outcomment this and it will not free the runtime memory; there you can also see, what else get's freed.
But you can't free this later on, since s1 gets discarded, and if you dont save it somewhere its lost.

Michael

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