--- /dev/null
+# Test object with an artifically constructed type unit header to verify
+# that the length field is correctly used to verify the validity of the
+# type_offset field.
+#
+# To generate the test object:
+# llvm-mc -triple x86_64-unknown-linux typeunit-header.s -filetype=obj \
+# -o typeunit-header.elf-x86-64
+#
+# We only have an abbreviation for the type unit die which is all we need.
+# Real type unit dies have quite different attributes of course, but we
+# just need to demonstrate an issue with validating length, so we just give it
+# a single visibility attribute.
+ .section .debug_abbrev,"",@progbits
+ .byte 0x01 # Abbrev code
+ .byte 0x41 # DW_TAG_type_unit
+ .byte 0x01 # DW_CHILDREN_yes
+ .byte 0x17 # DW_AT_visibility
+ .byte 0x0b # DW_FORM_data1
+ .byte 0x00 # EOM(1)
+ .byte 0x00 # EOM(2)
+ .byte 0x02 # Abbrev code
+ .byte 0x13 # DW_TAG_structure_type
+ .byte 0x00 # DW_CHILDREN_no (no members)
+ .byte 0x17 # DW_AT_visibility
+ .byte 0x0b # DW_FORM_data1
+ .byte 0x00 # EOM(1)
+ .byte 0x00 # EOM(2)
+ .byte 0x00 # EOM(3)
+
+ .section .debug_types,"",@progbits
+# DWARF v4 Type unit header - DWARF32 format.
+TU_4_32_start:
+ .long TU_4_32_end-TU_4_32_version # Length of Unit
+TU_4_32_version:
+ .short 4 # DWARF version number
+ .long .debug_abbrev # Offset Into Abbrev. Section
+ .byte 8 # Address Size (in bytes)
+ .quad 0x0011223344556677 # Type Signature
+ .long TU_4_32_type-TU_4_32_start # Type offset
+# The type-unit DIE, which has just a visibility attribute.
+ .byte 1 # Abbreviation code
+ .byte 1 # DW_VIS_local
+# The type DIE, which also just has a one-byte visibility attribute.
+TU_4_32_type:
+ .byte 2 # Abbreviation code
+ .byte 1 # DW_VIS_local
+ .byte 0 # NULL
+ .byte 0 # NULL
+TU_4_32_end:
-RUN: llvm-mc %S/../../../DebugInfo/Inputs/typeunit-header.s -filetype obj \
+RUN: llvm-mc %p/Inputs/typeunit-header.s -filetype obj \
RUN: -triple x86_64-unknown-elf -o - \
RUN: | llvm-dwarfdump -debug-types=0x00000019 - | FileCheck %s
CHECK: .debug_types contents:
CHECK: DW_AT_visibility
CHECK-NOT: {{:}}
-RUN: llvm-mc %S/../../../DebugInfo/Inputs/typeunit-header.s -filetype obj \
+RUN: llvm-mc %p/Inputs/typeunit-header.s -filetype obj \
RUN: -triple x86_64-unknown-elf -o - \
RUN: | llvm-dwarfdump -c -debug-types=0x0000017 - \
RUN: | FileCheck %s --check-prefix=CHILDREN