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[lld] Add thunks for hexagon #111217

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Merged
androm3da merged 8 commits into from
Jul 20, 2025
Merged

[lld] Add thunks for hexagon #111217

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cced3c5
[lld] Add thunks for hexagon
androm3da Jun 25, 2025
e3b915a
needsThunk()
androm3da Jun 25, 2025
9b8059e
Add thunk range test cases
androm3da Jun 25, 2025
ea13019
fixes from review
androm3da Jul 15, 2025
58d735c
Re-format test to limit changes required
androm3da Jul 15, 2025
8a97197
remove FIXME, delete comment
androm3da Jul 19, 2025
061758b
Use --no-show-raw-insn and move the addrs to after the label
androm3da Jul 20, 2025
b7e019b
Fix jump/call targets
androm3da Jul 20, 2025
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fixes from review
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@androm3da
androm3da committed Jul 20, 2025
commit ea130193ee7b070ce18a4c57f5be92bead67b68b
8 changes: 4 additions & 4 deletions lld/ELF/Relocations.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -2148,16 +2148,16 @@ constexpr uint32_t HEXAGON_END_OF_DUPLEX = 0 << 14;
// relocation.
static int getHexagonPacketOffset(const InputSection &isec,
const Relocation &rel) {
const ArrayRef<uint8_t> SectContents = isec.content();
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 =
SectContents.drop_front(rel.offset - (i + 1) * 4);
::memcpy(&instWord, InstWordContents.data(), sizeof(instWord));
const ArrayRef<uint8_t> instWordContents =
data.drop_front(rel.offset - (i + 1) * 4);
memcpy(&instWord, instWordContents.data(), sizeof(instWord));
if (((instWord & HEXAGON_MASK_END_PACKET) == HEXAGON_END_OF_PACKET) ||
((instWord & HEXAGON_MASK_END_PACKET) == HEXAGON_END_OF_DUPLEX))
return i * 4;
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