llvm-6502/test/MC/MachO/darwin-x86_64-diff-reloc-assign-2.s
Kevin Enderby d8e2f1757d Fixed a crash in the integrated assembler for Mach-O when a symbol difference
expression uses an assembler temporary symbol from an assignment.  In this case
the symbol does not have a fragment so the use of getFragment() would be NULL
and caused a crash. In the case of an assembler temporary symbol we want to use
the AliasedSymbol (if any) which will create a local relocation entry, but if
it is not an assembler temporary symbol then let it use that symbol with an
external relocation entry.

rdar://9356266


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190096 91177308-0d34-0410-b5e6-96231b3b80d8
2013-09-05 20:25:06 +00:00

39 lines
1.2 KiB
ArmAsm

// RUN: llvm-mc -triple x86_64-apple-darwin9 %s -filetype=obj -o - | macho-dump --dump-section-data | FileCheck %s
// Test case for rdar://9356266
// This tests that this expression does not cause a crash and produces these
// four relocation entries:
// Relocation information (__DATA,__data) 4 entries
// address pcrel length extern type scattered symbolnum/value
// 00000004 False long False SUB False 2 (__DATA,__data)
// 00000004 False long False UNSIGND False 2 (__DATA,__data)
// 00000000 False long False SUB False 2 (__DATA,__data)
// 00000000 False long False UNSIGND False 2 (__DATA,__data)
.data
L_var1:
L_var2:
// This was working fine
.long L_var2 - L_var1
.set L_var3, .
.set L_var4, .
// But this was causing a crash
.long L_var4 - L_var3
// CHECK: ('_relocations', [
// CHECK: # Relocation 0
// CHECK: (('word-0', 0x4),
// CHECK: ('word-1', 0x54000002)),
// CHECK: # Relocation 1
// CHECK: (('word-0', 0x4),
// CHECK: ('word-1', 0x4000002)),
// CHECK: # Relocation 2
// CHECK: (('word-0', 0x0),
// CHECK: ('word-1', 0x54000002)),
// CHECK: # Relocation 3
// CHECK: (('word-0', 0x0),
// CHECK: ('word-1', 0x4000002)),
// CHECK: ])