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loader/nso: Minor refactoring
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The use of a shared_ptr is an implementation detail of the VMManager
itself when mapping memory. Because of that, we shouldn't require all
users of the CodeSet to have to allocate the shared_ptr ahead of time.
It's intended that CodeSet simply pass in the required direct data, and
that the memory manager takes care of it from that point on.
This means we just do the shared pointer allocation in a single place,
when loading modules, as opposed to in each loader.
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namespace
Makes it impossible to indirectly violate the ODR in some other
translation unit due to these existing.
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Instead, pass in the core timing instance and make the dependency
explicit in the interface.
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Now that the NSO header has the proper size, we can just use sizeof on
it instead of having magic constants.
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This source file was utilizing its own version of the NSO header.
Instead of keeping this around, we can have the patch manager also use
the version of the header that we have defined in loader/nso.h
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The total struct itself is 0x100 (256) bytes in size, so we should be
providing that amount of data.
Without the data, this can result in omitted data from the final loaded
NSO file.
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file_sys: Implement parser and interpreter for game memory cheats
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Given this is utilized by the loaders, this allows avoiding inclusion of
the kernel process definitions where avoidable.
This also keeps the loading format for all executable data separate from
the kernel objects.
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For rom directories (and by extension, XCI/NSP/NAX/NCA) this is for the NSO with name 'main', for regular NSOs, this is the NSO.
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Similar to the NRO changes, we can also pass the process explicitly as a
parameter from Load instead of indirecting through the System class.
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When enabled in settings, PatchNSO will dump the unmodified NSO that it was passed to a file named <build id>.nso in the dump root for the current title ID.
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If a malformed NSO is attempted to be loaded, we shouldn't continue
onwards. We should be reporting an error and bailing out.
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These only exist to ferry data into a Process instance and end up going
out of scope quite early. Because of this, we can just make it a plain
struct for holding things and just std::move it into the relevant
function. There's no need to make this inherit from the kernel's Object
type.
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Uses -p (--program) and following string as args.
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Only added if arguments string is non-empty and a pass is requested by loader.
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Avoid resource-heavy classes and remove quasi-duplicated code.
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Makes the public interface consistent in terms of how accesses are done
on a process object. It also makes it slightly nicer to reason about the
logic of the process class, as we don't want to expose everything to
external code.
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a SharedPtr
A process should never require being reference counted in this
situation. If the handle to a process is freed before this function is
called, it's definitely a bug with our lifetime management, so we can
put the requirement in place for the API that the process must be a
valid instance.
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The locations of these can actually vary depending on the address space
layout, so we shouldn't be using these when determining where to map
memory or be using them as offsets for calculations. This keeps all the
memory ranges flexible and malleable based off of the virtual memory
manager instance state.
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Rather than hard-code the address range to be 36-bit, we can derive the
parameters from supplied NPDM metadata if the supplied exectuable
supports it. This is the bare minimum necessary for this to be possible.
The following commits will rework the memory code further to adjust to
this.
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* Added support for uncompressed NSOs
* Moved compressed section check to NsoHeader
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Previously, these were sitting outside of the Kernel namespace, which
doesn't really make sense, given they're related to the Thread class
which is within the Kernel namespace.
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The follow-up to e2457418dae19b889b2ad85255bb95d4cd0e4bff, which
replaces most of the includes in the core header with forward declarations.
This makes it so that if any of the headers the core header was
previously including change, then no one will need to rebuild the bulk
of the core, due to core.h being quite a prevalent inclusion.
This should make turnaround for changes much faster for developers.
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As means to pave the way for getting rid of global state within core,
This eliminates kernel global state by removing all globals. Instead
this introduces a KernelCore class which acts as a kernel instance. This
instance lives in the System class, which keeps its lifetime contained
to the lifetime of the System class.
This also forces the kernel types to actually interact with the main
kernel instance itself instead of having transient kernel state placed
all over several translation units, keeping everything together. It also
has a nice consequence of making dependencies much more explicit.
This also makes our initialization a tad bit more correct. Previously we
were creating a kernel process before the actual kernel was initialized,
which doesn't really make much sense.
The KernelCore class itself follows the PImpl idiom, which allows
keeping all the implementation details sealed away from everything else,
which forces the use of the exposed API and allows us to avoid any
unnecessary inclusions within the main kernel header.
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These mappings are leftovers from citra and don't apply to the Switch.
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segment array
Using member variables for referencing the segments array increases the
size of the class in memory for little benefit. The same behavior can be
achieved through the use of accessors that just return the relevant
segment.
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loader/nso: Check if read succeeded in IdentifyFile() before checking magic value
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value
We should always assume the filesystem is volatile and check each IO
operation. While we're at it reorganize checks so that early-out errors
are near one another.
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We can just initialize these vectors directly via their constructor.
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* Virtual Filesystem
* Fix delete bug and documentate
* Review fixes + other stuff
* Fix puyo regression
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* More improvements to GDBStub
- Debugging of threads should work correctly with source and assembly level stepping and modifying registers and memory, meaning threads and callstacks are fully clickable in VS.
- List of modules is available to the client, with assumption that .nro and .nso are backed up by an .elf with symbols, while deconstructed ROMs keep N names.
- Initial support for floating point registers.
* Tidy up as requested in PR feedback
* Tidy up as requested in PR feedback
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This reverts commit 77c684c1140f6bf3fb7d4560d06d2efb1a2ee5e2.
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* Add VfsFile and VfsDirectory classes
* Finish abstract Vfs classes
* Implement RealVfsFile (computer fs backend)
* Finish RealVfsFile and RealVfsDirectory
* Finished OffsetVfsFile
* More changes
* Fix import paths
* Major refactor
* Remove double const
* Use experimental/filesystem or filesystem depending on compiler
* Port partition_filesystem
* More changes
* More Overhaul
* FSP_SRV fixes
* Fixes and testing
* Try to get filesystem to compile
* Filesystem on linux
* Remove std::filesystem and document/test
* Compile fixes
* Missing include
* Bug fixes
* Fixes
* Rename v_file and v_dir
* clang-format fix
* Rename NGLOG_* to LOG_*
* Most review changes
* Fix TODO
* Guess 'main' to be Directory by filename
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* Start to add NCA support in loader
* More nca stuff
* More changes to nca.cpp
* Now identifies decrypted NCA cont.
* Game list fixes and more structs and stuff
* More updates to Nca class
* Now reads ExeFs (i think)
* ACTUALLY LOADS EXEFS!
* RomFS loads and games execute
* Cleanup and Finalize
* plumbing, cleanup and testing
* fix some things that i didnt think of before
* Preliminary Review Changes
* Review changes for bunnei and subv
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This makes the formatting expectations more obvious (e.g. any zero padding specified
is padding that's entirely dedicated to the value being printed, not any pretty-printing
that also gets tacked on).
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