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## The test checks that llvm-dwp avoids an out of bound access when there is
## an unknown section identifier in an index section. Without the fix, the test
## failed when LLVM is built with UBSan.
## Note that additional sections (.debug_abbrev.dwo, .debug_info.dwo, and
## .debug_types.dwo) are required to reach the test points in the code.
# RUN: llvm-mc -triple x86_64-unknown-linux-gnu %s -filetype=obj -o %t.dwp
# RUN: llvm-dwp %t.dwp -o - | \
# RUN: llvm-dwarfdump -debug-cu-index -debug-tu-index - | \
# RUN: FileCheck %s
## Check that all known sections are preserved and no data for unknown section
## identifiers is copied.
# CHECK: .debug_cu_index contents:
# CHECK-NEXT: version = 2, units = 1, slots = 2
# CHECK: Index Signature INFO ABBREV
# CHECK-NOT: Unknown
# CHECK: -----
# CHECK-NEXT: 1 0x1100002222222222 [0x00000000, 0x00000014) [0x00000000, 0x00000009)
# CHECK-NOT: [
# CHECK: .debug_tu_index contents:
# CHECK-NEXT: version = 2, units = 1, slots = 2
# CHECK: Index Signature TYPES ABBREV
# CHECK-NOT: Unknown
# CHECK: -----
# CHECK-NEXT: 2 0x1100003333333333 [0x00000000, 0x00000019) [0x00000009, 0x00000014)
# CHECK-NOT: [
.section .debug_abbrev.dwo, "e", @progbits
.LCUAbbrevBegin:
.uleb128 1 # Abbreviation Code
.uleb128 0x11 # DW_TAG_compile_unit
.byte 0 # DW_CHILDREN_no
.uleb128 0x2131 # DW_AT_GNU_dwo_id
.uleb128 7 # DW_FORM_data8
.byte 0 # EOM(1)
.byte 0 # EOM(2)
.byte 0 # EOM(3)
.LCUAbbrevEnd:
.LTUAbbrevBegin:
.uleb128 1 # Abbreviation Code
.uleb128 0x41 # DW_TAG_type_unit
.byte 1 # DW_CHILDREN_yes
.byte 0 # EOM(1)
.byte 0 # EOM(2)
.uleb128 2 # Abbreviation Code
.uleb128 0x13 # DW_TAG_structure_type
.byte 0 # DW_CHILDREN_no
.byte 0 # EOM(1)
.byte 0 # EOM(2)
.byte 0 # EOM(3)
.LTUAbbrevEnd:
.section .debug_info.dwo, "e", @progbits
.LCUBegin:
.long .LCUEnd-.LCUVersion # Length of Unit
.LCUVersion:
.short 4 # Version
.long 0 # Abbrev offset
.byte 8 # Address size
.uleb128 1 # Abbrev [1] DW_TAG_compile_unit
.quad 0x1100002222222222 # DW_AT_GNU_dwo_id
.LCUEnd:
.section .debug_types.dwo, "e", @progbits
.LTUBegin:
.long .LTUEnd-.LTUVersion # Length of Unit
.LTUVersion:
.short 4 # Version
.long 0 # Abbrev offset
.byte 8 # Address size
.quad 0x1100003333333333 # Type signature
.long .LTUType-.LTUBegin # Type offset
.uleb128 1 # Abbrev [1] DW_TAG_type_unit
.LTUType:
.uleb128 2 # Abbrev [2] DW_TAG_structure_type
.LTUEnd:
.section .debug_cu_index, "", @progbits
## Header:
.long 2 # Version
.long 4 # Section count
.long 1 # Unit count
.long 2 # Slot count
## Hash Table of Signatures:
.quad 0x1100002222222222
.quad 0
## Parallel Table of Indexes:
.long 1
.long 0
## Table of Section Offsets:
## Row 0:
.long 1 # DW_SECT_INFO
.long 3 # DW_SECT_ABBREV
.long 0 # Invalid ID, less than DW_SECT_INFO
.long 9 # Invalid ID, greater than DW_SECT_MACRO
## Row 1:
.long 0 # Offset in .debug_info.dwo
.long 0 # Offset in .debug_abbrev.dwo
.long 0
.long 0
## Table of Section Sizes:
.long .LCUEnd-.LCUBegin # Size in .debug_info.dwo
.long .LCUAbbrevEnd-.LCUAbbrevBegin # Size in .debug_abbrev.dwo
.long 1
.long 1
.section .debug_tu_index, "", @progbits
## Header:
.long 2 # Version
.long 4 # Section count
.long 1 # Unit count
.long 2 # Slot count
## Hash Table of Signatures:
.quad 0
.quad 0x1100003333333333
## Parallel Table of Indexes:
.long 0
.long 1
## Table of Section Offsets:
## Row 0:
.long 2 # DW_SECT_TYPES
.long 3 # DW_SECT_ABBREV
.long 0 # Invalid ID, less than DW_SECT_INFO
.long 9 # Invalid ID, greater than DW_SECT_MACRO
## Row 1:
.long 0 # Offset in .debug_types.dwo
.long .LTUAbbrevBegin-.debug_abbrev.dwo # Offset in .debug_abbrev.dwo
.long 0
.long 0
## Table of Section Sizes:
.long .LTUEnd-.LTUBegin # Size in .debug_types.dwo
.long .LTUAbbrevEnd-.LTUAbbrevBegin # Size in .debug_abbrev.dwo
.long 1
.long 1
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