On Thu, 25 Jun 2020 at 22:06, ardi <ardillasdelmo...@gmail.com> wrote: > I'd like to know if there's any functionality in the QEMU user mode > emulation that lets you replace, in the emulated program, function > calls to shared libraries into host implementations (note: when I say > "host implementations", I don't mean that it must really be a true > shared lib in the host... instead, simply static linking the host > implementation into the qemu emulator would be fine, and less > complex).
No, we don't have anything like that. QEMU's user-mode emulation doesn't know anything about the shared library/dynamic linker infrastructure of the guest program -- we just (like the real kernel) load the binary and its dynamic linker, implement the syscalls, and let the guest code do the rest. > If QEMU doesn't support this but you happen to know of any other > project doing this, please tell!! I think valgrind has infrastructure like this for intercepting library/function calls, but of course it's same-arch-to-same-arch and really intended for instrumentation. thanks -- PMM
