1 // This tests that default-null weak symbols (a GNU extension) are created 2 // properly via the .weak directive. 3 4 // RUN: llvm-mc -filetype=obj -triple i686-pc-win32 %s | llvm-readobj -t | FileCheck %s 5 // RUN: llvm-mc -filetype=obj -triple x86_64-pc-win32 %s | llvm-readobj -t | FileCheck %s 6 7 .def _main; 8 .scl 2; 9 .type 32; 10 .endef 11 .text 12 .globl _main 13 .align 16, 0x90 14 _main: # @main 15 # BB#0: # %entry 16 subl $4, %esp 17 movl $_test_weak, %eax 18 testl %eax, %eax 19 je LBB0_2 20 # BB#1: # %if.then 21 call _test_weak 22 movl $1, %eax 23 addl $4, %esp 24 ret 25 LBB0_2: # %return 26 xorl %eax, %eax 27 addl $4, %esp 28 ret 29 30 .weak _test_weak 31 32 .weak _test_weak_alias 33 _test_weak_alias=_main 34 35 // CHECK: Symbols [ 36 37 // CHECK: Symbol { 38 // CHECK: Name: _main 39 // CHECK-NEXT: Value: 0 40 // CHECK-NEXT: Section: .text 41 // CHECK-NEXT: BaseType: Null 42 // CHECK-NEXT: ComplexType: Function 43 // CHECK-NEXT: StorageClass: External 44 // CHECK-NEXT: AuxSymbolCount: 0 45 // CHECK-NEXT: } 46 47 // CHECK: Symbol { 48 // CHECK: Name: _test_weak 49 // CHECK-NEXT: Value: 0 50 // CHECK-NEXT: Section: IMAGE_SYM_UNDEFINED (0) 51 // CHECK-NEXT: BaseType: Null 52 // CHECK-NEXT: ComplexType: Null 53 // CHECK-NEXT: StorageClass: WeakExternal 54 // CHECK-NEXT: AuxSymbolCount: 1 55 // CHECK-NEXT: AuxWeakExternal { 56 // CHECK-NEXT: Linked: .weak._test_weak.default 57 // CHECK-NEXT: Search: Library 58 // CHECK-NEXT: } 59 // CHECK-NEXT: } 60 61 // CHECK: Symbol { 62 // CHECK: Name: .weak._test_weak.default 63 // CHECK-NEXT: Value: 0 64 // CHECK-NEXT: Section: IMAGE_SYM_ABSOLUTE (-1) 65 // CHECK-NEXT: BaseType: Null 66 // CHECK-NEXT: ComplexType: Null 67 // CHECK-NEXT: StorageClass: External 68 // CHECK-NEXT: AuxSymbolCount: 0 69 // CHECK-NEXT: } 70 71 // CHECK: Symbol { 72 // CHECK: Name: _test_weak_alias 73 // CHECK-NEXT: Value: 0 74 // CHECK-NEXT: Section: IMAGE_SYM_UNDEFINED (0) 75 // CHECK-NEXT: BaseType: Null 76 // CHECK-NEXT: ComplexType: Null 77 // CHECK-NEXT: StorageClass: WeakExternal 78 // CHECK-NEXT: AuxSymbolCount: 1 79 // CHECK-NEXT: AuxWeakExternal { 80 // CHECK-NEXT: Linked: .weak._test_weak_alias.default 81 // CHECK-NEXT: Search: Library 82 // CHECK-NEXT: } 83 // CHECK-NEXT: } 84 85 // CHECK: Symbol { 86 // CHECK: Name: .weak._test_weak_alias.default 87 // CHECK-NEXT: Value: 0 88 // CHECK-NEXT: Section: .text 89 // CHECK-NEXT: BaseType: Null 90 // CHECK-NEXT: ComplexType: Null 91 // CHECK-NEXT: StorageClass: External 92 // CHECK-NEXT: AuxSymbolCount: 0 93 // CHECK-NEXT: } 94
