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[llvm-jitlink] Fix detectStubKind() for big endian systems #79970

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Jan 30, 2024
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[llvm-jitlink] Fix detectStubKind() for big endian systems #79970

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9 changes: 5 additions & 4 deletions llvm/tools/llvm-jitlink/llvm-jitlink.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -1294,10 +1294,11 @@ class MemoryMatcher {
};

static StringRef detectStubKind(const Session::MemoryRegionInfo &Stub) {
constexpr uint32_t Armv7MovWTle = 0xe300c000;
constexpr uint32_t Armv7BxR12le = 0xe12fff1c;
constexpr uint32_t Thumbv7MovWTle = 0x0c00f240;
constexpr uint16_t Thumbv7BxR12le = 0x4760;
using namespace support::endian;
auto Armv7MovWTle = byte_swap<uint32_t, endianness::little>(0xe300c000);
auto Armv7BxR12le = byte_swap<uint32_t, endianness::little>(0xe12fff1c);
auto Thumbv7MovWTle = byte_swap<uint32_t, endianness::little>(0x0c00f240);
auto Thumbv7BxR12le = byte_swap<uint16_t, endianness::little>(0x4760);

MemoryMatcher M(Stub.getContent());
if (M.matchMask(Thumbv7MovWTle)) {
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