llvm/test/MC/COFF/weak.s
Rafael Espindola 746036c22a coff: fix weak alias to local.
We were creating a weak external that tried to reference a static symbol. That
would always fail to link with link.exe.

We now create an external symbol in the same position as the local and refer
to that. This works with link.exe and matches what gas does.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@270906 91177308-0d34-0410-b5e6-96231b3b80d8
2016-05-26 20:31:00 +00:00

94 lines
2.8 KiB
ArmAsm

// This tests that default-null weak symbols (a GNU extension) are created
// properly via the .weak directive.
// RUN: llvm-mc -filetype=obj -triple i686-pc-win32 %s | llvm-readobj -t | FileCheck %s
// RUN: llvm-mc -filetype=obj -triple x86_64-pc-win32 %s | llvm-readobj -t | FileCheck %s
.def _main;
.scl 2;
.type 32;
.endef
.text
.globl _main
.align 16, 0x90
_main: # @main
# BB#0: # %entry
subl $4, %esp
movl $_test_weak, %eax
testl %eax, %eax
je LBB0_2
# BB#1: # %if.then
call _test_weak
movl $1, %eax
addl $4, %esp
ret
LBB0_2: # %return
xorl %eax, %eax
addl $4, %esp
ret
.weak _test_weak
.weak _test_weak_alias
_test_weak_alias=_main
// CHECK: Symbols [
// CHECK: Symbol {
// CHECK: Name: _main
// CHECK-NEXT: Value: 0
// CHECK-NEXT: Section: .text
// CHECK-NEXT: BaseType: Null
// CHECK-NEXT: ComplexType: Function
// CHECK-NEXT: StorageClass: External
// CHECK-NEXT: AuxSymbolCount: 0
// CHECK-NEXT: }
// CHECK: Symbol {
// CHECK: Name: _test_weak
// CHECK-NEXT: Value: 0
// CHECK-NEXT: Section: IMAGE_SYM_UNDEFINED (0)
// CHECK-NEXT: BaseType: Null
// CHECK-NEXT: ComplexType: Null
// CHECK-NEXT: StorageClass: WeakExternal
// CHECK-NEXT: AuxSymbolCount: 1
// CHECK-NEXT: AuxWeakExternal {
// CHECK-NEXT: Linked: .weak._test_weak.default
// CHECK-NEXT: Search: Library
// CHECK-NEXT: }
// CHECK-NEXT: }
// CHECK: Symbol {
// CHECK: Name: .weak._test_weak.default
// CHECK-NEXT: Value: 0
// CHECK-NEXT: Section: IMAGE_SYM_ABSOLUTE (-1)
// CHECK-NEXT: BaseType: Null
// CHECK-NEXT: ComplexType: Null
// CHECK-NEXT: StorageClass: External
// CHECK-NEXT: AuxSymbolCount: 0
// CHECK-NEXT: }
// CHECK: Symbol {
// CHECK: Name: _test_weak_alias
// CHECK-NEXT: Value: 0
// CHECK-NEXT: Section: IMAGE_SYM_UNDEFINED (0)
// CHECK-NEXT: BaseType: Null
// CHECK-NEXT: ComplexType: Null
// CHECK-NEXT: StorageClass: WeakExternal
// CHECK-NEXT: AuxSymbolCount: 1
// CHECK-NEXT: AuxWeakExternal {
// CHECK-NEXT: Linked: .weak._test_weak_alias.default
// CHECK-NEXT: Search: Library
// CHECK-NEXT: }
// CHECK-NEXT: }
// CHECK: Symbol {
// CHECK: Name: .weak._test_weak_alias.default
// CHECK-NEXT: Value: 0
// CHECK-NEXT: Section: .text
// CHECK-NEXT: BaseType: Null
// CHECK-NEXT: ComplexType: Null
// CHECK-NEXT: StorageClass: External
// CHECK-NEXT: AuxSymbolCount: 0
// CHECK-NEXT: }