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llvm-mirror/test/MC/COFF/alias.s
Rafael Espindola d32e304f9c Fix pr24486.
This extends the work done in r233995 so that now getFragment (in addition to
getSection) also works for variable symbols.

With that the existing logic to decide if a-b can be computed works even if
a or b are variables. Given that, the expression evaluation can avoid expanding
variables as aggressively and that in turn lets the relocation code see the
original variable.

In order for this to work with the asm streamer, there is now a dummy fragment
per section. It is used to assign a section to a symbol when no other fragment
exists.

This patch is a joint work by Maxim Ostapenko andy myself.

llvm-svn: 249303
2015-10-05 12:07:05 +00:00

107 lines
3.6 KiB
ArmAsm

// RUN: llvm-mc -filetype=obj -triple i686-pc-win32 %s -o - \
// RUN: | llvm-readobj -t -r | FileCheck %s
local1:
external_aliased_to_local = local1
.globl global_aliased_to_external
global_aliased_to_external = external1
.globl global_aliased_to_local
local2:
global_aliased_to_local = local2
.weak weak_aliased_to_external
weak_aliased_to_external = external2
// Generate relocs against the above aliases.
.long external_aliased_to_local
.long global_aliased_to_external
.long global_aliased_to_local
.long weak_aliased_to_external
// CHECK: Relocations [
// CHECK: 0x0 IMAGE_REL_I386_DIR32 external_aliased_to_local
// CHECK: 0x4 IMAGE_REL_I386_DIR32 external1
// CHECK: 0x8 IMAGE_REL_I386_DIR32 global_aliased_to_local
// CHECK: 0xC IMAGE_REL_I386_DIR32 external2
// CHECK: ]
// CHECK: Symbols [
// CHECK-NEXT: Symbol {
// CHECK-NEXT: Name: .text
// CHECK-NEXT: Value: 0
// CHECK-NEXT: Section: .text (1)
// CHECK-NEXT: BaseType: Null (0x0)
// CHECK-NEXT: ComplexType: Null (0x0)
// CHECK-NEXT: StorageClass: Static (0x3)
// CHECK-NEXT: AuxSymbolCount: 1
// CHECK: }
// CHECK: Symbol {
// CHECK: Name: local1
// CHECK-NEXT: Value: 0
// CHECK-NEXT: Section: .text (1)
// CHECK-NEXT: BaseType: Null (0x0)
// CHECK-NEXT: ComplexType: Null (0x0)
// CHECK-NEXT: StorageClass: Static (0x3)
// CHECK-NEXT: AuxSymbolCount: 0
// CHECK-NEXT: }
// CHECK-NEXT: Symbol {
// CHECK: Name: global_aliased_to_external
// CHECK-NEXT: Value: 0
// CHECK-NEXT: Section: IMAGE_SYM_UNDEFINED (0)
// CHECK-NEXT: BaseType: Null (0x0)
// CHECK-NEXT: ComplexType: Null (0x0)
// CHECK-NEXT: StorageClass: External (0x2)
// CHECK-NEXT: AuxSymbolCount: 0
// CHECK-NEXT: }
// CHECK-NEXT: Symbol {
// CHECK-NEXT: Name: external1
// CHECK-NEXT: Value: 0
// CHECK-NEXT: Section: IMAGE_SYM_UNDEFINED (0)
// CHECK-NEXT: BaseType: Null (0x0)
// CHECK-NEXT: ComplexType: Null (0x0)
// CHECK-NEXT: StorageClass: External (0x2)
// CHECK-NEXT: AuxSymbolCount: 0
// CHECK-NEXT: }
// CHECK-NEXT: Symbol {
// CHECK-NEXT: Name: global_aliased_to_local
// CHECK-NEXT: Value: 0
// CHECK-NEXT: Section: .text (1)
// CHECK-NEXT: BaseType: Null (0x0)
// CHECK-NEXT: ComplexType: Null (0x0)
// CHECK-NEXT: StorageClass: External (0x2)
// CHECK-NEXT: AuxSymbolCount: 0
// CHECK-NEXT: }
// CHECK-NEXT: Symbol {
// CHECK-NEXT: Name: local2
// CHECK-NEXT: Value: 0
// CHECK-NEXT: Section: .text (1)
// CHECK-NEXT: BaseType: Null (0x0)
// CHECK-NEXT: ComplexType: Null (0x0)
// CHECK-NEXT: StorageClass: Static (0x3)
// CHECK-NEXT: AuxSymbolCount: 0
// CHECK-NEXT: }
// CHECK-NEXT: Symbol {
// CHECK-NEXT: Name: weak_aliased_to_external
// 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: external2
// CHECK-NEXT: Search: Library (0x2)
// CHECK-NEXT: }
// CHECK-NEXT: }
// CHECK-NEXT: Symbol {
// CHECK-NEXT: Name: external2
// CHECK-NEXT: Value: 0
// CHECK-NEXT: Section: IMAGE_SYM_UNDEFINED (0)
// CHECK-NEXT: BaseType: Null (0x0)
// CHECK-NEXT: ComplexType: Null (0x0)
// CHECK-NEXT: StorageClass: External (0x2)
// CHECK-NEXT: AuxSymbolCount: 0
// CHECK-NEXT: }
// CHECK-NEXT: ]