add LoongArch64 ELF absolute relocation support

gimli-rs · Mar 31, 2022 · 4f286da · 4f286da
1 parent 7d84f88
commit 4f286da
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Showing 3 changed files with 15 additions and 0 deletions.
diff --git a/src/read/elf/relocation.rs b/src/read/elf/relocation.rs
@@ -301,6 +301,11 @@ fn parse_relocation<Elf: FileHeader>(
             elf::R_HEX_32 => (RelocationKind::Absolute, 32),
             r_type => (RelocationKind::Elf(r_type), 0),
         },
+        elf::EM_LOONGARCH => match reloc.r_type(endian, false) {
+            elf::R_LARCH_32 => (RelocationKind::Absolute, 32),
+            elf::R_LARCH_64 => (RelocationKind::Absolute, 64),
+            r_type => (RelocationKind::Elf(r_type), 0),
+        },
         elf::EM_MIPS => match reloc.r_type(endian, is_mips64el) {
             elf::R_MIPS_16 => (RelocationKind::Absolute, 16),
             elf::R_MIPS_32 => (RelocationKind::Absolute, 32),

diff --git a/src/write/elf/object.rs b/src/write/elf/object.rs
@@ -519,6 +519,15 @@ impl<'a> Object<'a> {
                                 return Err(Error(format!("unimplemented relocation {:?}", reloc)));
                             }
                         },
+                        Architecture::LoongArch64 => match (reloc.kind, reloc.encoding, reloc.size)
+                        {
+                            (RelocationKind::Absolute, _, 32) => elf::R_LARCH_32,
+                            (RelocationKind::Absolute, _, 64) => elf::R_LARCH_64,
+                            (RelocationKind::Elf(x), _, _) => x,
+                            _ => {
+                                return Err(Error(format!("unimplemented relocation {:?}", reloc)));
+                            }
+                        },
                         Architecture::Mips | Architecture::Mips64 => {
                             match (reloc.kind, reloc.encoding, reloc.size) {
                                 (RelocationKind::Absolute, _, 16) => elf::R_MIPS_16,

diff --git a/tests/round_trip/mod.rs b/tests/round_trip/mod.rs
@@ -238,6 +238,7 @@ fn elf_any() {
         (Architecture::X86_64, Endianness::Little),
         (Architecture::X86_64_X32, Endianness::Little),
         (Architecture::Hexagon, Endianness::Little),
+        (Architecture::LoongArch64, Endianness::Little),
         (Architecture::Mips, Endianness::Little),
         (Architecture::Mips64, Endianness::Little),
         (Architecture::Msp430, Endianness::Little),