megboyzzandClaude
d5e6037fc7
Verified live on a Pixel 6a: the game passes its EULA, loads the prologue and renders real 3D gameplay, with zero heap exhaustion, zero faults and zero rejected frees over a full session. Root causes fixed in this state, each backed by a measurement (details and the list of refuted theories live in ARM64_TRANSLATION_LAYER.md): * JNI varargs float->double promotion. C promotes float to double in any varargs call and every Call*Method form is varargs, so reading one 4-byte slot yielded the double's always-zero low half. EVERY float argument passed to Java was silently becoming 0; text was just where it showed. * GuestHeap ~4x memory overhead. Power-of-two size classes carving the full class, plus segregated free lists that could never share memory between sizes. Reworked to exact sizing with O(log n) best-fit reuse and splitting (deliberately not a linear scan - this allocator already had an O(n) perf cliff in its history). Peak live now 207MB against the real A9's 199MB, fragmentation ~2.5MB. Also fixed: realloc reading past the old block on shrink, a 32-bit overflow in calloc, and drifting payload alignment. * Unbounded FMOD fake-handle leak into the never-freeing permanent arena, which is why enlarging that arena had not helped. * Frame presentation, corrected against A9 ground truth: the real frame has three default-framebuffer colour clears and ONE present at the end; this engine had been presenting on each of them. Load-time acceleration (zlib_accel.cpp): host zlib now serves inflate and crc32, the latter measured by the block profiler as the single hottest guest routine at 17.7%. Streams are only taken over when this layer saw their own inflateInit2_, so unknown streams (libpng's, among others) still run the original emulated path. name_lookup_accel.cpp is present but its hook is NOT registered - it crashed on bad assumptions about guest table lifetime and is kept as a starting point, with both mistakes recorded in its comments. Co-Authored-By: Claude <noreply@anthropic.com>
27 lines
821 B
Bash
Executable File
27 lines
821 B
Bash
Executable File
#!/usr/bin/env bash
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# Builds libtrace_agent.so for armeabi-v7a via the NDK's CMake toolchain
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# file - standalone, deliberately outside the Gradle build (see
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# CMakeLists.txt's own comment). Output: build/libtrace_agent.so, ready to
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# `adb push` to the Galaxy A9 (see the plan's Phase 4).
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set -euo pipefail
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cd "$(dirname "$0")"
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NDK="${ANDROID_NDK_HOME:-/home/megboyzz/Android/Sdk/ndk/27.0.12077973}"
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TOOLCHAIN="$NDK/build/cmake/android.toolchain.cmake"
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if [ ! -f "$TOOLCHAIN" ]; then
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echo "NDK toolchain file not found at $TOOLCHAIN - set ANDROID_NDK_HOME" >&2
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exit 1
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fi
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cmake -B build -G Ninja \
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-DCMAKE_TOOLCHAIN_FILE="$TOOLCHAIN" \
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-DANDROID_ABI=armeabi-v7a \
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-DANDROID_PLATFORM=android-27 \
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-DCMAKE_BUILD_TYPE=Debug \
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.
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cmake --build build
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echo "Built: $(pwd)/build/libtrace_agent.so"
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