mirror of
https://github.com/morluto/rea
synced 2026-10-25 22:08:11 -04:00
morluto
d4415444c4
Separate AMDGPU processors from feature-qualified note identities. Read Apple hidden ARM64 table rows once and preserve visibility through artifact, dylib and fuse consumers. Keep Objective-C++ template commas within type attributes and incomplete metadata unknown. Validated provider/parser and production property regressions, Electron CLI/MCP consumers, and native Apple lipo -hideARM64 output through the production slice reader and public artifact inspection. LLVM execution remains unverified. Fixes #6806 Fixes #6799 Fixes #6801
59 lines
1.8 KiB
TypeScript
59 lines
1.8 KiB
TypeScript
/**
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* arm64 Mach-O with one Objective-C class, `Fixture`, whose two properties
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* `first` and `second` share one attribute string. The first name may be
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* replaced and the second name pointer may target an unmapped offset.
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*/
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export const machoWithPropertyAttributes = (
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attributes: string,
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{
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firstName = "first",
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secondNameOffset,
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}: { firstName?: string; secondNameOffset?: number } = {},
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): Buffer => {
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const bytes = Buffer.alloc(4096);
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const base = 0x100000000n;
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const firstNameData = Buffer.from(`${firstName}\0`);
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const attributeData = Buffer.from(`${attributes}\0`);
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const attributeOffset = 0x600 + firstNameData.length;
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const secondNameDataOffset = attributeOffset + attributeData.length;
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const u32 = (at: number, value: number) => bytes.writeUInt32LE(value, at);
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const pointer = (at: number, offset: number) =>
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bytes.writeBigUInt64LE(base + BigInt(offset), at);
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u32(0, 0xfeedfacf);
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u32(4, 0x0100000c);
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u32(12, 2);
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u32(16, 1);
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u32(20, 152);
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u32(32, 0x19);
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u32(36, 152);
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bytes.write("__DATA", 40);
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pointer(56, 0);
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bytes.writeBigUInt64LE(4096n, 64);
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bytes.writeBigUInt64LE(4096n, 80);
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u32(88, 5);
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u32(92, 5);
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u32(96, 1);
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bytes.write("__objc_classlist", 104);
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bytes.write("__DATA", 120);
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pointer(136, 0x180);
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bytes.writeBigUInt64LE(8n, 144);
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u32(152, 0x180);
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pointer(0x180, 0x200);
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pointer(0x200 + 32, 0x300);
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u32(0x300, 2);
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u32(0x308, 16);
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pointer(0x300 + 24, 0x400);
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bytes.write("Fixture\0", 0x400);
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pointer(0x340, 0x500);
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u32(0x500, 16);
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u32(0x504, 2);
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pointer(0x508, 0x600);
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pointer(0x510, attributeOffset);
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pointer(0x518, secondNameOffset ?? secondNameDataOffset);
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pointer(0x520, attributeOffset);
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firstNameData.copy(bytes, 0x600);
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attributeData.copy(bytes, attributeOffset);
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bytes.write("second\0", secondNameDataOffset);
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return bytes;
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};
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