mirror of
https://github.com/DynamoRIO/dynamorio.git
synced 2026-10-12 02:02:04 +00:00
Bin Wang
76c5170fcd
- Add an `options` module parameter to accept DynamoRIO options on `insmod` and initialize them via `dynamorio_app_init_part_one_options()` during module init. - Added functions in `core/kernel_linux/os.c` that `dynamorio_app_init_part_one_options()` depends on. They are exercised by the init path and tested in the insmod CI. - Implement `kernel_setenv()` for saving the options value. - Implement `os_check_option_compatibility()` to enforce kernel-mode options constraints. - Update the kernel module insmod workflow to build with both `-DDEBUG=ON` and `OFF`, and verify that runtime options (`-loglevel 2`) are parsed and logged correctly in the debug build. On configuration lookup: the shared init path still performs it, but `os_open()` is intentionally not implemented in kernel mode and returns `INVALID_FILE` unconditionally. So no config file can be found and options can only be set using the module parameter. The kernel-mode options constraints implemented in `os_check_option_compatibility()` are mostly copied from drk and may need future adjustments. For example, #8116 tracks CPU-private fragment restrictions (`shared_bbs`, `shared_traces`, `coarse_units`). This initial implementation only supports setting options at module load time. Dynamic updates and per-process options are tracked by #8115. Issue: #8021