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llvm-mirror/test/Object/relocation-executable.test

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Clarify getRelocationAddress x getRelocationOffset a bit. getRelocationAddress is for dynamic libraries and executables, getRelocationOffset for relocatable objects. Mark the getRelocationAddress of COFF and MachO as not implemented yet. Add a test of ELF's. llvm-readobj -r now prints the same values as readelf -r. llvm-svn: 180259
2013-04-25 14:28:45 +02:00
RUN: llvm-readobj -r -expand-relocs %p/Inputs/hello-world.elf-x86-64 \
RUN: | FileCheck %s
// CHECK: Relocations [
Change how we iterate over relocations on ELF. 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
2013-05-30 05:05:14 +02:00
// CHECK-NEXT: Section (8) .rela.dyn {
// CHECK-NEXT: Relocation {
// CHECK-NEXT: Offset: 0x4018D8
// CHECK-NEXT: Type: R_X86_64_GLOB_DAT (6)
// CHECK-NEXT: Symbol: __gmon_start__
// CHECK-NEXT: Addend: 0x0
// CHECK-NEXT: }
// CHECK-NEXT: }
// CHECK-NEXT: Section (9) .rela.plt {
Clarify getRelocationAddress x getRelocationOffset a bit. getRelocationAddress is for dynamic libraries and executables, getRelocationOffset for relocatable objects. Mark the getRelocationAddress of COFF and MachO as not implemented yet. Add a test of ELF's. llvm-readobj -r now prints the same values as readelf -r. llvm-svn: 180259
2013-04-25 14:28:45 +02:00
// CHECK-NEXT: Relocation {
// CHECK-NEXT: Offset: 0x4018F8
// CHECK-NEXT: Type: R_X86_64_JUMP_SLOT (7)
// CHECK-NEXT: Symbol: __libc_start_main
Change getRelocationAdditionalInfo to be ELF only. It was only implemented for ELF where it collected the Addend, so this patch also renames it to getRelocationAddend. llvm-svn: 181502
2013-05-09 05:39:05 +02:00
// CHECK-NEXT: Addend: 0x0
Clarify getRelocationAddress x getRelocationOffset a bit. getRelocationAddress is for dynamic libraries and executables, getRelocationOffset for relocatable objects. Mark the getRelocationAddress of COFF and MachO as not implemented yet. Add a test of ELF's. llvm-readobj -r now prints the same values as readelf -r. llvm-svn: 180259
2013-04-25 14:28:45 +02:00
// CHECK-NEXT: }
// CHECK-NEXT: Relocation {
// CHECK-NEXT: Offset: 0x401900
// CHECK-NEXT: Type: R_X86_64_JUMP_SLOT (7)
// CHECK-NEXT: Symbol: puts
Change getRelocationAdditionalInfo to be ELF only. It was only implemented for ELF where it collected the Addend, so this patch also renames it to getRelocationAddend. llvm-svn: 181502
2013-05-09 05:39:05 +02:00
// CHECK-NEXT: Addend: 0x0
Clarify getRelocationAddress x getRelocationOffset a bit. getRelocationAddress is for dynamic libraries and executables, getRelocationOffset for relocatable objects. Mark the getRelocationAddress of COFF and MachO as not implemented yet. Add a test of ELF's. llvm-readobj -r now prints the same values as readelf -r. llvm-svn: 180259
2013-04-25 14:28:45 +02:00
// CHECK-NEXT: }
// CHECK-NEXT: }
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