diff options
| -rw-r--r-- | lib/MC/MCObjectWriter.cpp | 2 | ||||
| -rw-r--r-- | test/MC/MachO/darwin-x86_64-diff-reloc-assign.s | 27 |
2 files changed, 29 insertions, 0 deletions
diff --git a/lib/MC/MCObjectWriter.cpp b/lib/MC/MCObjectWriter.cpp index 1888739..030f247 100644 --- a/lib/MC/MCObjectWriter.cpp +++ b/lib/MC/MCObjectWriter.cpp @@ -68,6 +68,8 @@ MCObjectWriter::IsSymbolRefDifferenceFullyResolved(const MCAssembler &Asm, const MCSymbolData &DataA = Asm.getSymbolData(SA); const MCSymbolData &DataB = Asm.getSymbolData(SB); + if(!DataA.getFragment() || !DataB.getFragment()) + return false; return IsSymbolRefDifferenceFullyResolvedImpl(Asm, DataA, *DataB.getFragment(), diff --git a/test/MC/MachO/darwin-x86_64-diff-reloc-assign.s b/test/MC/MachO/darwin-x86_64-diff-reloc-assign.s new file mode 100644 index 0000000..49cfa41 --- /dev/null +++ b/test/MC/MachO/darwin-x86_64-diff-reloc-assign.s @@ -0,0 +1,27 @@ +// RUN: llvm-mc -triple x86_64-apple-darwin9 %s -filetype=obj -o - | macho-dump --dump-section-data | FileCheck %s + +// Test case for rdar://10743265 + +// This tests that this expression does not cause a crash and produces two +// relocation entries: +// Relocation information (__TEXT,__text) 2 entries +// address pcrel length extern type scattered symbolnum/value +// 00000000 False long True SUB False _base +// 00000000 False long True UNSIGND False _start_ap_2 + +_base = . + +.long (0x2000) + _start_ap_2 - _base +.word 0 + +_start_ap_2: + cli + +// CHECK: ('_relocations', [ +// CHECK: # Relocation 0 +// CHECK: (('word-0', 0x0), +// CHECK: ('word-1', 0x5c000000)), +// CHECK: # Relocation 1 +// CHECK: (('word-0', 0x0), +// CHECK: ('word-1', 0xc000001)), +// CHECK: ]) |