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-rw-r--r--user/llvm18/dyld-elf-ppc32.patch24
1 files changed, 24 insertions, 0 deletions
diff --git a/user/llvm18/dyld-elf-ppc32.patch b/user/llvm18/dyld-elf-ppc32.patch
new file mode 100644
index 000000000..7fb744169
--- /dev/null
+++ b/user/llvm18/dyld-elf-ppc32.patch
@@ -0,0 +1,24 @@
+Author: A. Wilcox <awilfox@adelielinux.org>
+Upstream-Status: Pending
+
+This implements the R_PPC_REL32 relocation type, which is needed for the
+OrcJIT to work properly on 32-bit PowerPC.
+
+Needs more tests before submitting upstream, but seems to DTRT.
+
+--- llvm-14.0.6.src/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.cpp.old 2022-06-22 16:46:24.000000000 +0000
++++ llvm-14.0.6.src/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.cpp 2022-11-28 06:33:12.239921624 +0000
+@@ -830,6 +830,13 @@
+ case ELF::R_PPC_ADDR16_HA:
+ writeInt16BE(LocalAddress, applyPPCha(Value + Addend));
+ break;
++ case ELF::R_PPC_REL32:
++ uint32_t FinalAddress = Section.getLoadAddressWithOffset(Offset);
++ int64_t delta = static_cast<int64_t>(Value - FinalAddress + Addend);
++ if (SignExtend64<32>(delta) != delta)
++ llvm_unreachable("Relocation R_PPC_REL32 overflow");
++ writeInt32BE(LocalAddress, delta);
++ break;
+ }
+ }
+