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| author | Paul Robinson <paul.robinson@sony.com> | 2017-12-01 18:25:30 +0000 |
|---|---|---|
| committer | Paul Robinson <paul.robinson@sony.com> | 2017-12-01 18:25:30 +0000 |
| commit | 89e6e155520847b5d27bfaf6f0c699e46cfec771 (patch) | |
| tree | a957f646372a738ad6495b263131544c19d33996 /test | |
| parent | 53cc245050ab02a1f2373f8b488a73b78f218761 (diff) | |
[DebugInfo] Bail out if making no progress dumping line tables.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@319564 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test')
| -rw-r--r-- | test/DebugInfo/X86/dwarfdump-bogus-LNE.s | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/test/DebugInfo/X86/dwarfdump-bogus-LNE.s b/test/DebugInfo/X86/dwarfdump-bogus-LNE.s index f1dc256bdfb..d094672ff98 100644 --- a/test/DebugInfo/X86/dwarfdump-bogus-LNE.s +++ b/test/DebugInfo/X86/dwarfdump-bogus-LNE.s @@ -150,3 +150,100 @@ LT2_end: # ERR: Unexpected line op length at offset 0x0000005e # ERR-SAME: expected 0x02 found 0x01 + +# The above parsing errors still let us move to the next unit. +# If the prologue is bogus, we need to bail out because we can't +# even find the next unit. + +# DWARF v4 line-table header #3. +LT3_start: + .long LT3_end-LT3_version # Length of Unit (DWARF-32 format) +LT3_version: + .short 4 # DWARF version number + .long LT3_header_end-LT3_params # Length of Prologue +LT3_params: + .byte 1 # Minimum Instruction Length + .byte 1 # Maximum Operations per Instruction + .byte 1 # Default is_stmt + .byte -5 # Line Base + .byte 14 # Line Range + .byte 13 # Opcode Base + .byte 0 # Standard Opcode Lengths + .byte 1 + .byte 1 + .byte 1 + .byte 1 + .byte 0 + .byte 0 + .byte 0 + .byte 1 + .byte 0 + .byte 0 + .byte 1 + # No directories. + .byte 0 + # No files. + .byte 0 + # Extra junk at the end of the prologue, so the length isn't right. + .long 0 +LT3_header_end: + # Real opcode and operand. + .byte 0 + .byte 9 + .byte 2 # DW_LNE_set_address + .quad .text + # Real opcode with incorrect length. + .byte 0 + .byte 2 # Wrong length, should be 1. + .byte 1 # DW_LNE_end_sequence +LT3_end: + +# We should have bailed out above, so never see this in the dump. +# DWARF v4 line-table header #4. +LT4_start: + .long LT4_end-LT4_version # Length of Unit (DWARF-32 format) +LT4_version: + .short 4 # DWARF version number + .long LT4_header_end-LT4_params # Length of Prologue +LT4_params: + .byte 1 # Minimum Instruction Length + .byte 1 # Maximum Operations per Instruction + .byte 1 # Default is_stmt + .byte -5 # Line Base + .byte 14 # Line Range + .byte 13 # Opcode Base + .byte 0 # Standard Opcode Lengths + .byte 1 + .byte 1 + .byte 1 + .byte 1 + .byte 0 + .byte 0 + .byte 0 + .byte 1 + .byte 0 + .byte 0 + .byte 1 + # No directories. + .byte 0 + # No files. + .byte 0 +LT4_header_end: + # Real opcode and operand. + .byte 0 + .byte 9 + .byte 2 # DW_LNE_set_address + .quad .text + # Real opcode with correct length. + .byte 0 + .byte 1 + .byte 1 # DW_LNE_end_sequence +LT4_end: + +# Look for the dump of unit 3, and don't want unit 4. +# CHECK: Line table prologue: +# CHECK-NOT: Line table prologue: + +# And look for the error message. +# ERR: warning: parsing line table prologue at 0x0000005f should have +# ERR-SAME: ended at 0x00000081 but it ended at 0x0000007d |