Adds Core/MIPS/InterpreterDispatch.cpp, the checked-in output of
GenerateInterpreterDispatch() (see the previous commit), and hooks it
into RunUntilFast() in MIPSTables.cpp in place of the old
MIPSGetInstruction()-based table walk + indirect call through
instr->interpret. The checked-with-breakpoints/memchecks path
(RunUntilWithChecks) is untouched for now, since it inspects
MIPSInstruction flags directly and correctness there matters most.
Also fixes a real crash in headless.cpp found while testing this:
cmdLineOptions.gpuBackend.value() would throw when unset (e.g. with
--graphics=software), now uses value_or().
Verified with `test.py -g --cpu=interpreter --graphics=software`:
313/314 pass; the one failure (cpu/fpu/fpu) is a pre-existing
interpreter-vs-JIT denormal (flush-to-zero) difference, confirmed to
fail identically with the old table-walking dispatch, so unrelated to
this change.
Adds Tools/update-dispatcher.py to regenerate InterpreterDispatch.cpp
from a built PPSSPPHeadless binary whenever the MIPSTables.cpp tables
change.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_019SKhm9wKEQzRUsx9mTrrtQ
TouchInput::id was used directly to index the global primaryButton[]
array (MultiTouchButton::Touch) and to shift pointer bitmasks
(PSPDpad/PSPStick/PSPCustomStick/GestureGamepad::Touch), guarded only
by a debug-only assert in one of the five call sites - a no-op in
release builds. input.id isn't always a small sequential slot in
[0, TOUCH_MAX_POINTERS): SDL assigns SDL_FingerID values directly,
Android pointer IDs can go up to 31, and UWP's TouchMapper allocates
one more slot (11) than TOUCH_MAX_POINTERS (10) and can also return -1
when it runs out of slots - all reachable through ordinary multi-touch
use, no malicious input required.
Also apply bounds check to the PER_GAME gesture config ints
(iDoubleTapGesture/iSwipeUp/Down/Left/Right) before indexing
GestureKey::keyList[] with them.
Additionally, minor cleanup on Android and moves the TouchMapper helper
out from UWP to InputState.h.
The legacy android/jni build (ab.sh / ab.cmd / CI) used an ancient NDK
(r21e) and hardcoded job counts. Update it to the NDK version used by the
gradle build (29.0.14206865) and derive the job count from the available
cores (nproc / NUMBER_OF_PROCESSORS) instead of hardcoding.
The LZRC decompressor's only bounds check for output (and input) was a
debug-only _dbg_assert_msg_, which is a no-op in release builds. The
NPDRM demo block device also passed a hardcoded 1 MiB output length
while the real destination buffer (blockBuf_) could be as small as 2048
bytes, allowing a crafted NPDRM image to trigger an unbounded heap
overflow during game load.
Changes:
- rc_putbyte/rc_getbyte now enforce real bounds and set an error flag
instead of relying on debug asserts; decompression aborts with -1 on
overflow or truncated input.
- normalize() reads via rc_getbyte so it stays in bounds.
- Plain-text path clamps the copy size to both the output buffer and the
remaining input (and no longer interprets the size as signed).
- NPDRMDemoBlockDevice::ReadBlock passes blockSize_ (the real buffer
size) instead of 0x00100000 to lzrc_decompress.
- Add unittest/TestLzrc (synthetic input, no test data files): checks the
plain-text clamp, truncated input, and output overflow all fail safely.
- AGENTS.md: note to reuse existing format handlers/decompressors before
writing new ones.
A crafted zip with a parent-directory ("..") entry name could escape the
destination directory during extraction, writing arbitrary files on the
host (e.g. into startup/autostart folders). ExtractZipContents built the
output path by concatenating the raw zip entry name onto the destination
with no traversal check.
Changes:
- Add HasParentDirComponent() utility in Core/Util/PathUtil and use it in
GameManager::ExtractZipContents to reject entries with a ".." component.
Guard both the directory-creation and file-writing passes.
- Expose ExtractZipContents as public for testing.
- Add unittest/TestZipSlip which crafts a zip with a "../evil.txt" entry
and verifies it is not written outside the destination directory.
Henrik Rydgård