1 files changed, 78 insertions, 0 deletions
diff --git a/llvm/test/tools/llvm-readobj/elf-dynamic-table-dtnull.s b/llvm/test/tools/llvm-readobj/elf-dynamic-table-dtnull.s
new file mode 100644
index 00000000000..8bb8d055bfb
--- /dev/null
+++ b/llvm/test/tools/llvm-readobj/elf-dynamic-table-dtnull.s
@@ -0,0 +1,78 @@
+# Check we are able to dump the dynamic section without a DT_NULL entry correctly.
+
+# RUN: yaml2obj -docnum=1 %s -o %t.o
+# RUN: llvm-readobj --dynamic-table %t.o | FileCheck %s --check-prefix=NONULL
+# RUN: llvm-readelf --dynamic-table %t.o | FileCheck %s --check-prefix=NONULL
+
+# NONULL:      DynamicSection [ (1 entries)
+# NONULL-NEXT:   Tag                Type   Name/Value
+# NONULL-NEXT:   0x0000000000000015 DEBUG  0x0
+# NONULL-NEXT: ]
+
+--- !ELF
+FileHeader:
+  Class:           ELFCLASS64
+  Data:            ELFDATA2LSB
+  Type:            ET_EXEC
+  Machine:         EM_X86_64
+Sections:
+  - Name:            .dynamic
+    Type:            SHT_DYNAMIC
+    Address:         0x0000000000001010
+    AddressAlign:    0x0000000000000010
+    EntSize:         0x0000000000000010
+    Entries:
+      - Tag:             DT_DEBUG
+        Value:           0x0000000000000000
+ProgramHeaders:
+  - Type: PT_LOAD
+    VAddr: 0x1000
+    Sections:
+      - Section: .dynamic
+  - Type: PT_DYNAMIC
+    VAddr: 0x1010
+    Sections:
+      - Section: .dynamic
+
+# Sometimes .dynamic section content length can be greater than the
+# length of its entries. In this case, we should not try to dump anything
+# past the DT_NULL entry, which works as a terminator.
+
+# RUN: yaml2obj -docnum=2 %s -o %t.o
+# RUN: llvm-readobj --dynamic-table %t.o | FileCheck %s --check-prefix=LONG
+# RUN: llvm-readelf --dynamic-table %t.o | FileCheck %s --check-prefix=LONG
+
+# LONG:      DynamicSection [ (2 entries)
+# LONG-NEXT:   Tag                Type                 Name/Value
+# LONG-NEXT:   0x0000000000000015 DEBUG                0x0
+# LONG-NEXT:   0x0000000000000000 NULL                 0x0
+# LONG-NEXT: ]
+
+--- !ELF
+FileHeader:
+  Class:           ELFCLASS64
+  Data:            ELFDATA2LSB
+  Type:            ET_EXEC
+  Machine:         EM_X86_64
+Sections:
+  - Name:            .dynamic
+    Type:            SHT_DYNAMIC
+    Address:         0x0000000000001010
+    AddressAlign:    0x0000000000000010
+    EntSize:         0x0000000000000010
+    Entries:
+      - Tag:             DT_DEBUG
+        Value:           0x0000000000000000
+      - Tag:             DT_NULL
+        Value:           0x0000000000000000
+      - Tag:             DT_NULL
+        Value:           0x0000000000000000
+ProgramHeaders:
+  - Type: PT_LOAD
+    VAddr: 0x1000
+    Sections:
+      - Section: .dynamic
+  - Type: PT_DYNAMIC
+    VAddr: 0x1010
+    Sections:
+      - Section: .dynamic