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[DWARF] Replace assert with diagnostic. PR36868.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@328235 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Paul Robinson 2018-03-22 19:37:56 +00:00
parent 30a7db5e5f
commit adec4ee33d
2 changed files with 46 additions and 2 deletions
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10
lib/DebugInfo/DWARF/DWARFDebugLine.cpp
View File

@ -551,8 +551,14 @@ bool DWARFDebugLine::LineTable::parse(DWARFDataExtractor &DebugLineData,
// from the size of the operand.
if (DebugLineData.getAddressSize() == 0)
DebugLineData.setAddressSize(Len - 1);
else
assert(DebugLineData.getAddressSize() == Len - 1);
else if (DebugLineData.getAddressSize() != Len - 1) {
fprintf(stderr, "Mismatching address size at offset 0x%8.8" PRIx32
" expected 0x%2.2" PRIx32 " found 0x%2.2" PRIx64 "\n",
ExtOffset, DebugLineData.getAddressSize(), Len - 1);
// Skip the rest of the line-number program.
*OffsetPtr = EndOffset;
return false;
}
State.Row.Address = DebugLineData.getRelocatedAddress(OffsetPtr);
if (OS)
*OS << format(" (0x%16.16" PRIx64 ")", State.Row.Address);

38
test/DebugInfo/X86/dwarfdump-line-mismatch.s Normal file
View File

@ -0,0 +1,38 @@
# The .debug_info section says 8-byte addresses, but the assembler
# will generate a line table with 4-byte addresses (for i686).
# RUN: llvm-mc -filetype=obj -triple i686-linux-gnu %s -o - | \
# RUN: llvm-dwarfdump -debug-line - 2>&1 | FileCheck %s
# CHECK: Mismatching address size at offset 0x{{[0-9a-f]+}}
# CHECK-SAME: expected 0x08 found 0x04
.text
.file "reduced.c"
.globl main
main:
.file 1 "/tmp" "reduced.c"
.loc 1 2 0
xorl %eax, %eax
retl
.file 2 "/tmp/repeat/repeat/repeat/repeat" "repeat.h"
.section .debug_abbrev,"",@progbits
.byte 1 # Abbreviation Code
.byte 17 # DW_TAG_compile_unit
.byte 0 # DW_CHILDREN_no
.byte 16 # DW_AT_stmt_list
.byte 23 # DW_FORM_sec_offset
.byte 0 # EOM(1)
.byte 0 # EOM(2)
.byte 0 # EOM(3)
.section .debug_info,"",@progbits
.long .Lend0 - .Lbegin0 # Length of Unit
.Lbegin0:
.short 4 # DWARF version number
.long .debug_abbrev # Offset Into Abbrev. Section
.byte 8 # Address Size (in bytes)
.byte 1 # Abbrev [1] 0xb:0x1f DW_TAG_compile_unit
.long .debug_line # DW_AT_stmt_list
.Lend0:
.section .debug_line,"",@progbits