Merge #2783

2783: Made relocations matching strictly in compiler-llvm r=Amanieu a=tnayuki

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# Description
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Made relocations matching strictly in compiler-llvm.
I added object's architecture to matching pattern.

# Review

- [ ] Add a short description of the change to the CHANGELOG.md file


Co-authored-by: Toru Nayuki <tnayuki@icloud.com>

lib/compiler-llvm/src/object_file.rs

@@ -163,24 +163,36 @@ where
             .map_err(map_object_err)?
             .relocations()
         {
-            let kind = match (reloc.kind(), reloc.size()) {
-                (object::RelocationKind::Absolute, 64) => RelocationKind::Abs8,
-                (object::RelocationKind::Elf(object::elf::R_X86_64_PC64), 0) => {
-                    RelocationKind::X86PCRel8
+            let kind = match (elf.architecture(), reloc.kind(), reloc.size()) {
+                (_, object::RelocationKind::Absolute, 64) => RelocationKind::Abs8,
+                (
+                    object::Architecture::X86_64,
+                    object::RelocationKind::Elf(object::elf::R_X86_64_PC64),
+                    0,
+                ) => RelocationKind::X86PCRel8,
+                (
+                    object::Architecture::Aarch64,
+                    object::RelocationKind::Elf(object::elf::R_AARCH64_MOVW_UABS_G0_NC),
+                    0,
+                ) => RelocationKind::Arm64Movw0,
+                (
+                    object::Architecture::Aarch64,
+                    object::RelocationKind::Elf(object::elf::R_AARCH64_MOVW_UABS_G1_NC),
+                    0,
+                ) => RelocationKind::Arm64Movw1,
+                (
+                    object::Architecture::Aarch64,
+                    object::RelocationKind::Elf(object::elf::R_AARCH64_MOVW_UABS_G2_NC),
+                    0,
+                ) => RelocationKind::Arm64Movw2,
+                (
+                    object::Architecture::Aarch64,
+                    object::RelocationKind::Elf(object::elf::R_AARCH64_MOVW_UABS_G3),
+                    0,
+                ) => RelocationKind::Arm64Movw3,
+                (object::Architecture::Aarch64, object::RelocationKind::PltRelative, 26) => {
+                    RelocationKind::Arm64Call
                 }
-                (object::RelocationKind::Elf(object::elf::R_AARCH64_MOVW_UABS_G0_NC), 0) => {
-                    RelocationKind::Arm64Movw0
-                }
-                (object::RelocationKind::Elf(object::elf::R_AARCH64_MOVW_UABS_G1_NC), 0) => {
-                    RelocationKind::Arm64Movw1
-                }
-                (object::RelocationKind::Elf(object::elf::R_AARCH64_MOVW_UABS_G2_NC), 0) => {
-                    RelocationKind::Arm64Movw2
-                }
-                (object::RelocationKind::Elf(object::elf::R_AARCH64_MOVW_UABS_G3), 0) => {
-                    RelocationKind::Arm64Movw3
-                }
-                (object::RelocationKind::PltRelative, 26) => RelocationKind::Arm64Call,
                 _ => {
                     return Err(CompileError::Codegen(format!(
                         "unknown relocation {:?}",