This commit adds all the changes made to the 3GX plugin loader fork of Luma3DS. The most important features are:
- Add 3GX plugin loader support. New service added to rosalina: plg:ldr
- Add svcControlProcess, svcControlMemoryUnsafe and improve svcMapProcessMemoryEx (breaking change)
- Allow applications to override certain configurations depending on their needs:
- Disable core2 thread redirection
- Disable game patching for the next app
- Force New 3DS speedup
- Force next application in a specific memory mode
- Block the opening of the Rosalina menu
- Add GDB commands to list all process handles and catch all SVC (latter is for IDA Pro as gdb client supports it)
- Other changes necessary for plugins to work properly. Please check changed files in this PR for more details.
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Co-authored-by: PabloMK7 <hackyglitch@gmail.com>
Co-authored-by: Nanquitas <nath.doidi@gmail.com>
Co-authored-by: TuxSH <1922548+TuxSH@users.noreply.github.com>
And also move the location of IPS/BPS patches for (non-KIP) sysmodules
to /luma/sysmodules/<titleId>.<ips/bps> and only require "Load ext
firm/modules" option for it.
This is a leftover from the Gateway era that has long lost its utility
and that unnecessarily complicated the code base.
Please just load an external FIRM from SD card if you need something
similar.
Also refactor the multi-EmuNAND code and CTRNAND mounting code.
When "load external firms and modules" is enabled, Loader will load the
sysmodule from /luma/sysmodule/<titleid>.cxi (all uppercase, and with
the N3DS title ID bit if relevant) and skip patching. Note that this is
a title ID here, not a process name (unlike what we do for KIPs).
While this is aimed at enabling people to easily load replacements for
official sysmodules, you can load your own custom sysmodules that don't
correspond to anything installed. You can use gdb to do so:
set remote exec-file <tid>
run
Not tested (except for HM which is known to work).
And restrict code.bin and exheader.bin to when *both* "external firm
and modules" and "game patching" are enabled.
The BPS format allows distributing patches that are smaller and that do
not contain copyrighted content if data is relocated
(unlike non-trivial IPS patches).
This is essential for games such as Majora's Mask 3D that have three
barely different code revisions. Supporting all three versions would
demand an unreasonable amount of work; with BPS patches only one
version has to be supported.
The patcher is written in C++ in order to make it possible to share the
implementation with Citra and because a C version would be a lot more
ugly and tedious to write. The patcher is non-intrusive for the rest of
the codebase and self-contained so hopefully that isn't an issue.
This adds roughly ~0x500 bytes of code to the loader sysmodule.
Code looks reasonably optimised (in IDA). Tested and works on an o3DS.
