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llvm-mirror/test/MC/COFF/weak-comdat.s
Martin Storsjö 3df565ac8f [MC] [COFF] Make sure that weak external symbols are undefined symbols
For comdats (e.g. caused by -ffunction-sections), Section is already
set here; make sure it's null, for the weak external symbol to be undefined.

This fixes PR46779.

Differential Revision: https://reviews.llvm.org/D84507

(cherry picked from commit 9e81d8bbf19d72fca3d87b7334c613d1aa2a5795)
2020-07-27 13:10:48 +02:00

35 lines
1.1 KiB
ArmAsm

// RUN: llvm-mc -filetype=obj -triple x86_64-pc-win32 %s -o %t.o
// RUN: llvm-readobj --symbols %t.o | FileCheck %s
// Test that the weak symbol is properly undefined, while originally being
// the leader symbol for a comdat. (This can easily happen if building with
// -ffunction-sections).
.section .text$func,"xr",one_only,func
.weak func
func:
ret
// CHECK: Symbol {
// CHECK: Name: func
// CHECK-NEXT: Value: 0
// CHECK-NEXT: Section: IMAGE_SYM_UNDEFINED (0)
// CHECK-NEXT: BaseType: Null (0x0)
// CHECK-NEXT: ComplexType: Null (0x0)
// CHECK-NEXT: StorageClass: WeakExternal (0x69)
// CHECK-NEXT: AuxSymbolCount: 1
// CHECK-NEXT: AuxWeakExternal {
// CHECK-NEXT: Linked: .weak.func.default (10)
// CHECK-NEXT: Search: Alias (0x3)
// CHECK-NEXT: }
// CHECK-NEXT: }
// CHECK-NEXT: Symbol {
// CHECK-NEXT: Name: .weak.func.default
// CHECK-NEXT: Value: 0
// CHECK-NEXT: Section: .text$func (4)
// CHECK-NEXT: BaseType: Null (0x0)
// CHECK-NEXT: ComplexType: Null (0x0)
// CHECK-NEXT: StorageClass: External (0x2)
// CHECK-NEXT: AuxSymbolCount: 0
// CHECK-NEXT: }