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5b34d5a3c7
For COFF and MachO, sections semantically have relocations that apply to them. That is not the case on ELF. In relocatable objects (.o), a section with relocations in ELF has offsets to another section where the relocations should be applied. In dynamic objects and executables, relocations don't have an offset, they have a virtual address. The section sh_info may or may not point to another section, but that is not actually used for resolving the relocations. This patch exposes that in the ObjectFile API. It has the following advantages: * Most (all?) clients can handle this more efficiently. They will normally walk all relocations, so doing an effort to iterate in a particular order doesn't save time. * llvm-readobj now prints relocations in the same way the native readelf does. * probably most important, relocations that don't point to any section are now visible. This is the case of relocations in the rela.dyn section. See the updated relocation-executable.test for example. llvm-svn: 182908
143 lines
4.0 KiB
ArmAsm
143 lines
4.0 KiB
ArmAsm
// RUN: llvm-mc -filetype=obj -triple x86_64-pc-linux-gnu %s -o - | llvm-readobj -r -t | FileCheck %s
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defined1:
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defined2:
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defined3:
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.symver defined1, bar1@zed
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.symver undefined1, bar2@zed
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.symver defined2, bar3@@zed
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.symver defined3, bar5@@@zed
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.symver undefined3, bar6@@@zed
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.long defined1
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.long undefined1
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.long defined2
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.long defined3
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.long undefined3
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.global global1
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.symver global1, g1@@zed
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global1:
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// CHECK: Relocations [
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// CHECK-NEXT: Section (2) .rela.text {
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// CHECK-NEXT: 0x0 R_X86_64_32 .text 0x0
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// CHECK-NEXT: 0x4 R_X86_64_32 bar2@zed 0x0
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// CHECK-NEXT: 0x8 R_X86_64_32 .text 0x0
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// CHECK-NEXT: 0xC R_X86_64_32 .text 0x0
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// CHECK-NEXT: 0x10 R_X86_64_32 bar6@zed 0x0
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// CHECK-NEXT: }
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// CHECK-NEXT: ]
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// CHECK: Symbol {
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// CHECK: Name: bar1@zed (19)
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// CHECK-NEXT: Value: 0x0
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// CHECK-NEXT: Size: 0
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// CHECK-NEXT: Binding: Local
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// CHECK-NEXT: Type: None
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// CHECK-NEXT: Other: 0
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// CHECK-NEXT: Section: .text (0x1)
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// CHECK-NEXT: }
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// CHECK-NEXT: Symbol {
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// CHECK-NEXT: Name: bar3@@zed (37)
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// CHECK-NEXT: Value: 0x0
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// CHECK-NEXT: Size: 0
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// CHECK-NEXT: Binding: Local
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// CHECK-NEXT: Type: None
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// CHECK-NEXT: Other: 0
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// CHECK-NEXT: Section: .text (0x1)
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// CHECK-NEXT: }
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// CHECK-NEXT: Symbol {
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// CHECK-NEXT: Name: bar5@@zed (47)
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// CHECK-NEXT: Value: 0x0
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// CHECK-NEXT: Size: 0
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// CHECK-NEXT: Binding: Local
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// CHECK-NEXT: Type: None
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// CHECK-NEXT: Other: 0
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// CHECK-NEXT: Section: .text (0x1)
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// CHECK-NEXT: }
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// CHECK-NEXT: Symbol {
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// CHECK-NEXT: Name: defined1 (1)
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// CHECK-NEXT: Value: 0x0
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// CHECK-NEXT: Size: 0
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// CHECK-NEXT: Binding: Local
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// CHECK-NEXT: Type: None
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// CHECK-NEXT: Other: 0
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// CHECK-NEXT: Section: .text (0x1)
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// CHECK-NEXT: }
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// CHECK-NEXT: Symbol {
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// CHECK-NEXT: Name: defined2 (10)
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// CHECK-NEXT: Value: 0x0
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// CHECK-NEXT: Size: 0
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// CHECK-NEXT: Binding: Local
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// CHECK-NEXT: Type: None
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// CHECK-NEXT: Other: 0
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// CHECK-NEXT: Section: .text (0x1)
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// CHECK-NEXT: }
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// CHECK-NEXT: Symbol {
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// CHECK-NEXT: Name: .text (0)
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// CHECK-NEXT: Value: 0x0
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// CHECK-NEXT: Size: 0
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// CHECK-NEXT: Binding: Local
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// CHECK-NEXT: Type: Section
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// CHECK-NEXT: Other: 0
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// CHECK-NEXT: Section: .text (0x1)
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// CHECK-NEXT: }
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// CHECK-NEXT: Symbol {
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// CHECK-NEXT: Name: .data (0)
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// CHECK-NEXT: Value: 0x0
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// CHECK-NEXT: Size: 0
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// CHECK-NEXT: Binding: Local
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// CHECK-NEXT: Type: Section
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// CHECK-NEXT: Other: 0
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// CHECK-NEXT: Section: .data (0x3)
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// CHECK-NEXT: }
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// CHECK-NEXT: Symbol {
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// CHECK-NEXT: Name: .bss (0)
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// CHECK-NEXT: Value: 0x0
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// CHECK-NEXT: Size: 0
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// CHECK-NEXT: Binding: Local
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// CHECK-NEXT: Type: Section
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// CHECK-NEXT: Other: 0
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// CHECK-NEXT: Section: .bss (0x4)
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// CHECK-NEXT: }
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// CHECK-NEXT: Symbol {
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// CHECK-NEXT: Name: g1@@zed (74)
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// CHECK-NEXT: Value: 0x14
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// CHECK-NEXT: Size: 0
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// CHECK-NEXT: Binding: Global
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// CHECK-NEXT: Type: None
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// CHECK-NEXT: Other: 0
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// CHECK-NEXT: Section: .text (0x1)
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// CHECK-NEXT: }
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// CHECK-NEXT: Symbol {
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// CHECK-NEXT: Name: global1 (66)
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// CHECK-NEXT: Value: 0x14
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// CHECK-NEXT: Size: 0
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// CHECK-NEXT: Binding: Global
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// CHECK-NEXT: Type: None
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// CHECK-NEXT: Other: 0
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// CHECK-NEXT: Section: .text (0x1)
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// CHECK-NEXT: }
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// CHECK-NEXT: Symbol {
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// CHECK-NEXT: Name: bar2@zed (28)
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// CHECK-NEXT: Value: 0x0
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// CHECK-NEXT: Size: 0
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// CHECK-NEXT: Binding: Global
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// CHECK-NEXT: Type: None
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// CHECK-NEXT: Other: 0
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// CHECK-NEXT: Section: (0x0)
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// CHECK-NEXT: }
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// CHECK-NEXT: Symbol {
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// CHECK-NEXT: Name: bar6@zed (57)
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// CHECK-NEXT: Value: 0x0
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// CHECK-NEXT: Size: 0
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// CHECK-NEXT: Binding: Global
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// CHECK-NEXT: Type: None
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// CHECK-NEXT: Other: 0
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// CHECK-NEXT: Section: (0x0)
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// CHECK-NEXT: }
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// CHECK-NEXT: ]
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