[ELF][MIPS] Create PLT entry specific for MIPS ABI version R6
llvm-svn: 276173
diff --git a/lld/ELF/Target.cpp b/lld/ELF/Target.cpp
index 4bdde13..1d75bf3 100644
--- a/lld/ELF/Target.cpp
+++ b/lld/ELF/Target.cpp
@@ -1957,6 +1957,12 @@
write32<E>(Loc, (Instr & 0xffff0000) | (V & 0xffff));
}
+template <class ELFT> static bool isMipsR6() {
+ const auto &FirstObj = cast<ELFFileBase<ELFT>>(*Config->FirstElf);
+ uint32_t Arch = FirstObj.getObj().getHeader()->e_flags & EF_MIPS_ARCH;
+ return Arch == EF_MIPS_ARCH_32R6 || Arch == EF_MIPS_ARCH_64R6;
+}
+
template <class ELFT>
void MipsTargetInfo<ELFT>::writePltHeader(uint8_t *Buf) const {
const endianness E = ELFT::TargetEndianness;
@@ -1981,7 +1987,8 @@
const endianness E = ELFT::TargetEndianness;
write32<E>(Buf, 0x3c0f0000); // lui $15, %hi(.got.plt entry)
write32<E>(Buf + 4, 0x8df90000); // l[wd] $25, %lo(.got.plt entry)($15)
- write32<E>(Buf + 8, 0x03200008); // jr $25
+ // jr $25
+ write32<E>(Buf + 8, isMipsR6<ELFT>() ? 0x03200009 : 0x03200008);
write32<E>(Buf + 12, 0x25f80000); // addiu $24, $15, %lo(.got.plt entry)
writeMipsHi16<E>(Buf, GotEntryAddr);
writeMipsLo16<E>(Buf + 4, GotEntryAddr);