else
UnitType = DW_UT_compile;
}
+ if (isTypeUnit()) {
+ TypeHash = debug_info.getU64(offset_ptr, &Err);
+ TypeOffset = debug_info.getUnsigned(
+ offset_ptr, FormParams.getDwarfOffsetByteSize(), &Err);
+ } else if (UnitType == DW_UT_split_compile || UnitType == DW_UT_skeleton)
+ DWOId = debug_info.getU64(offset_ptr, &Err);
+
+ if (errorToBool(std::move(Err)))
+ return false;
+
if (IndexEntry) {
if (AbbrOffset)
return false;
return false;
AbbrOffset = AbbrEntry->Offset;
}
- if (isTypeUnit()) {
- TypeHash = debug_info.getU64(offset_ptr, &Err);
- TypeOffset = debug_info.getUnsigned(
- offset_ptr, FormParams.getDwarfOffsetByteSize(), &Err);
- } else if (UnitType == DW_UT_split_compile || UnitType == DW_UT_skeleton)
- DWOId = debug_info.getU64(offset_ptr, &Err);
-
- if (errorToBool(std::move(Err)))
- return false;
// Header fields all parsed, capture the size of this unit header.
assert(*offset_ptr - Offset <= 255 && "unexpected header size");
--- /dev/null
+# RUN: llvm-mc -triple x86_64-unknown-linux %s -filetype=obj -o - | \
+# RUN: llvm-dwarfdump -debug-info -
+
+## llvm-dwarfdump used to crash with this input because of an invalid size
+## of the compilation unit contribution in the .debug_cu_index section.
+
+ .section .debug_abbrev.dwo, "e", @progbits
+.LAbbrBegin:
+ .uleb128 1 # Abbreviation Code
+ .uleb128 17 # DW_TAG_compile_unit
+ .byte 0 # DW_CHILDREN_no
+ .uleb128 3 # DW_AT_name
+ .uleb128 8 # DW_FORM_string
+ .uleb128 0x2131 # DW_AT_GNU_dwo_id
+ .uleb128 7 # DW_FORM_data8
+ .byte 0 # EOM(1)
+ .byte 0 # EOM(2)
+ .byte 0 # EOM(3)
+.LAbbrEnd:
+
+ .section .debug_info.dwo, "e", @progbits
+.LCUBegin:
+ .long .LCUEnd-.LCUVersion # Length
+.LCUVersion:
+ .short 4 # Version
+ .long 0 # Abbrev offset
+ .byte 4 # Address size
+ .uleb128 1 # Abbrev [1] DW_TAG_compile_unit
+ .asciz "a.c" # DW_AT_name
+ .quad 0x1100001122222222 # DW_AT_GNU_dwo_id
+.LCUEnd:
+
+ .section .debug_cu_index, "", @progbits
+## Header:
+ .short 2 # Version
+ .space 2 # Padding
+ .long 2 # Section count
+ .long 1 # Unit count
+ .long 4 # Slot count
+## Hash Table of Signatures:
+ .quad 0
+ .quad 0
+ .quad 0x1100001122222222
+ .quad 0
+## Parallel Table of Indexes:
+ .long 0
+ .long 0
+ .long 1
+ .long 0
+## Table of Section Offsets:
+## Row 0:
+ .long 1 # DW_SECT_INFO
+ .long 3 # DW_SECT_ABBREV
+## Row 1:
+ .long .LCUBegin-.debug_info.dwo # Offset in .debug_info.dwo
+ .long .LAbbrBegin-.debug_abbrev.dwo # Offset in .debug_abbrev.dwo
+## Table of Section Sizes:
+ .long .LCUEnd-.LCUBegin-1 # Size of the contribution in .debug_info.dwo (invalid)
+ .long .LAbbrEnd-.LAbbrBegin