================
@@ -2139,17 +2139,44 @@ void ThunkCreator::mergeThunks(ArrayRef<OutputSection
*> outputSections) {
});
}
-static int64_t getPCBias(Ctx &ctx, RelType type) {
- if (ctx.arg.emachine != EM_ARM)
- return 0;
- switch (type) {
- case R_ARM_THM_JUMP19:
- case R_ARM_THM_JUMP24:
- case R_ARM_THM_CALL:
- return 4;
- default:
- return 8;
+constexpr uint32_t HEXAGON_MASK_END_PACKET = 3 << 14;
+constexpr uint32_t HEXAGON_END_OF_PACKET = 3 << 14;
+constexpr uint32_t HEXAGON_END_OF_DUPLEX = 0 << 14;
+
+// Return the distance between the packet start and the instruction in the
+// relocation.
+static int getHexagonPacketOffset(const InputSection &isec,
+ const Relocation &rel) {
+ const ArrayRef<uint8_t> data = isec.content();
+
+ // Search back as many as 3 instructions.
+ for (unsigned i = 0;; i++) {
+ if (i == 3 || rel.offset < (i + 1) * 4)
+ return i * 4;
+ uint32_t instWord = 0;
+ const ArrayRef<uint8_t> instWordContents =
+ data.drop_front(rel.offset - (i + 1) * 4);
+ memcpy(&instWord, instWordContents.data(), sizeof(instWord));
----------------
jrtc27 wrote:
This assumes native endianness; use read32
https://github.com/llvm/llvm-project/pull/149723
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