2f643b0560
Remove gmodule.pl and rewrite as a python in gdb_helper.py. This removes Perl dependency for the GRUB GDB script, but adds Python as a dependency. This is more desirable because Python is tightly integrated with GDB and can do things not even available to GDB native scripting language. GDB must be built with Python, however this is not a major limitation because every major distro non-end-of-life versions build GDB with Python support. And GDB has had support for Python since around 7.1-ish, which is about a decade. This re-implementation has an added feature. If there is a user defined command named "onload_<module name>", then that command will be executed after the symbols for the specified module are loaded. When debugging a module it can be desirable to set break points on code in the module. This is difficult in GRUB because, at GDB start, the module is not loaded and on EFI platforms its not known ahead of time where the module will be loaded. So allow users to create an "onload_<modname>" command which will be run when the module with name "modname" is loaded. Another addition is a new convenience function is defined $is_user_command(), which returns true if its string argument is the name of a user-defined command. A secondary benefit of these changes is that the script does not write temporary files and has better error handling capabilities. Signed-off-by: Glenn Washburn <development@efficientek.com> Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
This is GRUB 2, the second version of the GRand Unified Bootloader. GRUB 2 is rewritten from scratch to make GNU GRUB cleaner, safer, more robust, more powerful, and more portable. See the file NEWS for a description of recent changes to GRUB 2. See the file INSTALL for instructions on how to build and install the GRUB 2 data and program files. See the file MAINTAINERS for information about the GRUB maintainers, etc. If you found a security vulnerability in the GRUB please check the SECURITY file to get more information how to properly report this kind of bugs to the maintainers. Please visit the official web page of GRUB 2, for more information. The URL is <http://www.gnu.org/software/grub/grub.html>. More extensive documentation is available in the Info manual, accessible using 'info grub' after building and installing GRUB 2. There are a number of important user-visible differences from the first version of GRUB, now known as GRUB Legacy. For a summary, please see: info grub Introduction 'Changes from GRUB Legacy'