diff --git a/llvm/include/llvm/BinaryFormat/ELFRelocs/AArch64.def b/llvm/include/llvm/BinaryFormat/ELFRelocs/AArch64.def
--- a/llvm/include/llvm/BinaryFormat/ELFRelocs/AArch64.def
+++ b/llvm/include/llvm/BinaryFormat/ELFRelocs/AArch64.def
@@ -132,6 +132,7 @@
 ELF_RELOC(R_AARCH64_TLS_TPREL64,                     0x406)
 ELF_RELOC(R_AARCH64_TLSDESC,                         0x407)
 ELF_RELOC(R_AARCH64_IRELATIVE,                       0x408)
+ELF_RELOC(R_AARCH64_PLT32,                           0x409)
 
 // ELF_RELOC(R_AARCH64_P32_NONE,                         0)
 ELF_RELOC(R_AARCH64_P32_ABS32,                       0x001)
@@ -219,3 +220,4 @@
 ELF_RELOC(R_AARCH64_P32_TLS_TPREL,                   0x0ba)
 ELF_RELOC(R_AARCH64_P32_TLSDESC,                     0x0bb)
 ELF_RELOC(R_AARCH64_P32_IRELATIVE,                   0x0bc)
+ELF_RELOC(R_AARCH64_P32_PLT32,                       0x0bd)
diff --git a/llvm/test/tools/llvm-readobj/ELF/reloc-types-elf-aarch64.test b/llvm/test/tools/llvm-readobj/ELF/reloc-types-elf-aarch64.test
--- a/llvm/test/tools/llvm-readobj/ELF/reloc-types-elf-aarch64.test
+++ b/llvm/test/tools/llvm-readobj/ELF/reloc-types-elf-aarch64.test
@@ -127,6 +127,7 @@
 # CHECK: Type: R_AARCH64_TLS_TPREL64 (1030)
 # CHECK: Type: R_AARCH64_TLSDESC (1031)
 # CHECK: Type: R_AARCH64_IRELATIVE (1032)
+# CHECK: Type: R_AARCH64_PLT32 (1033)
 
 --- !ELF
 FileHeader:
@@ -267,3 +268,4 @@
       - Type: R_AARCH64_TLS_TPREL64
       - Type: R_AARCH64_TLSDESC
       - Type: R_AARCH64_IRELATIVE
+      - Type: R_AARCH64_PLT32