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- fix WriteSLEB128
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parent
5d052fc565
commit
b1bb82fe01
1 changed files with 29 additions and 5 deletions
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@ -350,7 +350,19 @@ static void WriteSLEB128(TArray<uint8_t> &stream, int32_t v)
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}
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else
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{
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// To do: sign extended version
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while (true)
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{
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if (v > -128)
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{
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WriteUInt8(stream, v & 0x7f);
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break;
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}
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else
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{
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WriteUInt8(stream, v);
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v >>= 7;
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}
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}
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}
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}
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@ -363,19 +375,31 @@ static void WriteCIE(TArray<uint8_t> &stream, const TArray<uint8_t> &cieInstruct
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WriteUInt32(stream, 0); // CIE ID
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WriteUInt8(stream, 1); // CIE Version
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WriteUInt8(stream, 'z');
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WriteUInt8(stream, 'R');
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//WriteUInt8(stream, 'R'); // fde encoding
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WriteUInt8(stream, 0);
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WriteULEB128(stream, minInstAlignment);
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WriteSLEB128(stream, dataAlignmentFactor);
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WriteUInt8(stream, returnAddressReg);
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WriteULEB128(stream, 0);
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// augmentation length and data (empty but aligned)
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int padding = (stream.Size() + 1) % 8;
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if (padding == 0)
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{
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WriteULEB128(stream, 0);
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}
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else
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{
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padding = 8 - padding;
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WriteULEB128(stream, padding);
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for (int i = 0; i <= padding; i++) WriteUInt8(stream, 0);
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}
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for (unsigned int i = 0; i < cieInstructions.Size(); i++)
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stream.Push(cieInstructions[i]);
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// Padding and update length field
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unsigned int length = stream.Size() - lengthPos - 8;
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int padding = stream.Size() % 4;
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padding = stream.Size() % 8;
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for (int i = 0; i <= padding; i++) WriteUInt8(stream, 0);
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WriteLength(stream, lengthPos, length);
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}
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@ -398,7 +422,7 @@ static void WriteFDE(TArray<uint8_t> &stream, const TArray<uint8_t> &fdeInstruct
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// Padding and update length field
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unsigned int length = stream.Size() - lengthPos - 8;
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int padding = stream.Size() % 4;
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int padding = stream.Size() % 8;
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for (int i = 0; i <= padding; i++) WriteUInt8(stream, 0);
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WriteLength(stream, lengthPos, length);
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}
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