UserspaceEmulator: Support dynamically loaded programs

When loading dynamic objects, the emulator loads the interpreter, generates an auxiliary vector and starts executing the loader. Additionally, this commits also makes the MallocTracer and backtrace symbolication work for dynamically loaded programs.
Author: https://github.com/itamar8910 Commit: 72ca45e300 Pull-request: https://github.com/SerenityOS/serenity/pull/3738 Reviewed-by: https://github.com/ADKaster Reviewed-by: https://github.com/alimpfard Reviewed-by: https://github.com/awesomekling
2025-08-11 18:50:50 +00:00 · 2020-11-23 20:00:35 +02:00 · 2020-11-23 20:00:35 +02:00 · 72ca45e300 · 2024-07-19 00:50:07 +09:00
commit 72ca45e300
parent 28cda567c1
9 changed files with 247 additions and 64 deletions
--- a/Userland/DynamicLoader/main.cpp
+++ b/Userland/DynamicLoader/main.cpp
@ -254,6 +254,8 @@ static FlatPtr loader_main(auxv_t* auxvp)
        }
    }
    ASSERT(main_program_fd >= 0);
+    ASSERT(!main_program_name.is_null());
+    dbgln("loading: {}", main_program_name);

    map_library(main_program_name, main_program_fd);
    map_dependencies(main_program_name);