1 files changed, 91 insertions, 0 deletions
diff --git a/llvm/test/DebugInfo/X86/dwarfdump-str-offsets-invalid-3.s b/llvm/test/DebugInfo/X86/dwarfdump-str-offsets-invalid-3.s
new file mode 100644
index 00000000000..ebde2221372
--- /dev/null
+++ b/llvm/test/DebugInfo/X86/dwarfdump-str-offsets-invalid-3.s
@@ -0,0 +1,91 @@
+# RUN: llvm-mc -triple x86_64-unknown-linux %s -filetype=obj -o %t.o
+# RUN: llvm-dwarfdump -v %t.o | FileCheck --check-prefix=INVALIDCONTRIB %s
+#
+# Test object to verify that llvm-dwarfdump handles an invalid string offsets
+# table.
+
+        .section .debug_str,"MS",@progbits,1
+str_producer:
+        .asciz "Handmade DWARF producer"
+str_CU1:
+        .asciz "Compile_Unit_1"
+str_CU1_dir:
+        .asciz "/home/test/CU1"
+str_CU2:
+        .asciz "Compile_Unit_2"
+str_CU2_dir:
+        .asciz "/home/test/CU2"
+str_TU:
+        .asciz "Type_Unit"
+str_TU_type:
+        .asciz "MyStruct"
+
+        .section .debug_str.dwo,"MS",@progbits,1
+dwo_str_CU_5_producer:
+        .asciz "Handmade split DWARF producer"
+dwo_str_CU_5_name:
+        .asciz "V5_split_compile_unit"
+dwo_str_CU_5_comp_dir:
+        .asciz "/home/test/splitCU"
+dwo_str_TU_5:
+        .asciz "V5_split_type_unit"
+dwo_str_TU_5_type:
+        .asciz "V5_split_Mystruct"
+
+# A rudimentary abbrev section.
+        .section .debug_abbrev,"",@progbits
+        .byte 0x01  # Abbrev code
+        .byte 0x11  # DW_TAG_compile_unit
+        .byte 0x00  # DW_CHILDREN_no
+        .byte 0x00  # EOM(1)
+        .byte 0x00  # EOM(2)
+        .byte 0x00  # EOM(3)
+
+# A rudimentary compile unit to convince dwarfdump that we are dealing with a
+# DWARF v5 string offsets table.
+        .section .debug_info,"",@progbits
+
+# DWARF v5 CU header.
+        .long  CU1_5_end-CU1_5_version  # Length of Unit
+CU1_5_version:
+        .short 5               # DWARF version number
+        .byte 1                # DWARF Unit Type
+        .byte 8                # Address Size (in bytes)
+        .long .debug_abbrev    # Offset Into Abbrev. Section
+# A compile-unit DIE, which has no attributes.
+        .byte 1                # Abbreviation code
+CU1_5_end:
+
+        .section .debug_str_offsets,"",@progbits
+# CU1's contribution
+# Invalid length
+        .long 0xfffffffe
+        .long .debug_str_offsets_segment0_end-.debug_str_offsets_base0
+        .short 5    # DWARF version
+        .short 0    # Padding
+.debug_str_offsets_base0:
+        .long str_producer
+        .long str_CU1
+        .long str_CU1_dir
+.debug_str_offsets_segment0_end:
+# CU2's contribution
+        .long .debug_str_offsets_segment1_end-.debug_str_offsets_base1
+        .short 5    # DWARF version
+        .short 0    # Padding
+.debug_str_offsets_base1:
+        .long str_producer
+        .long str_CU2
+        .long str_CU2_dir
+.debug_str_offsets_segment1_end:
+# The TU's contribution
+        .long .debug_str_offsets_segment2_end-.debug_str_offsets_base2
+        .short 5    # DWARF version
+        .short 0    # Padding
+.debug_str_offsets_base2:
+        .long str_TU
+        .long str_TU_type
+.debug_str_offsets_segment2_end:
+
+# INVALIDCONTRIB:            .debug_str_offsets contents:
+# INVALIDCONTRIB-NOT:        contents:
+# INVALIDCONTRIB:            error: invalid contribution to string offsets table in section .debug_str_offsets.