llvm/test/MC/ELF/undef.s
Rafael Espindola d179886f05 Be more strict on when we produce an undefined reference. In gas a file with
just

.type   foo,@object

will produce an undefined reference to foo. On the other hand, a file with
just

.weakref bar, foo

will not. It is somewhat hard to support both in MC since both statements
should create the symbols. It should be possible if we really need to by
adding to the flags, but hopefully that is not necessary.

With this patch we do not produce a undefined reference in any of those cases.
The assembly file needs an actual use for the undefined reference to be
present.

This is in preparation for a patch implementing .weakref.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117735 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-29 23:09:31 +00:00

47 lines
1.4 KiB
ArmAsm

// RUN: llvm-mc -filetype=obj -triple x86_64-pc-linux-gnu %s -o - | elf-dump | FileCheck %s
// Test which symbols should be in the symbol table
.long .Lsym1
.Lsym2:
.Lsym3:
.Lsym4 = .Lsym2 - .Lsym3
.long .Lsym4
.type .Lsym5,@object
.type sym6,@object
.long sym6
.section .rodata.str1.1,"aMS",@progbits,1
.Lsym7:
.Lsym8:
.text
movsd .Lsym8(%rip), %xmm1
// CHECK: ('_symbols', [
// CHECK-NEXT: # Symbol 0x00000000
// CHECK-NEXT: (('st_name', 0x00000000) # ''
// CHECK: # Symbol 0x00000001
// CHECK-NEXT: (('st_name', 0x0000000d) # '.Lsym8'
// CHECK: # Symbol 0x00000002
// CHECK-NEXT: (('st_name', 0x00000000) # ''
// CHECK: # Symbol 0x00000003
// CHECK-NEXT: (('st_name', 0x00000000) # ''
// CHECK: # Symbol 0x00000004
// CHECK-NEXT: (('st_name', 0x00000000) # ''
// CHECK: # Symbol 0x00000005
// CHECK-NEXT: (('st_name', 0x00000000) # ''
// CHECK: # Symbol 0x00000006
// CHECK-NEXT: (('st_name', 0x00000001) # '.Lsym1'
// CHECK: # Symbol 0x00000007
// CHECK-NEXT: (('st_name', 0x00000008) # 'sym6'
// CHECK-NEXT: ('st_bind', 0x00000001)
// CHECK-NEXT: ('st_type', 0x00000001)
// CHECK-NEXT: ('st_other', 0x00000000)
// CHECK-NEXT: ('st_shndx', 0x00000000)
// CHECK-NEXT: ('st_value', 0x00000000)
// CHECK-NEXT: ('st_size', 0x00000000)
// CHECK-NEXT: ),
// CHECK-NEXT: ])