diff options
-rw-r--r-- | llvm/include/llvm/Object/ELFObjectFile.h | 25 | ||||
-rw-r--r-- | llvm/test/Object/objdump-reloc-shared.test | 5 | ||||
-rw-r--r-- | llvm/test/tools/llvm-objdump/X86/Inputs/relocations-in-nonrelocatable.elf-x86_64 | bin | 0 -> 9731 bytes | |||
-rw-r--r-- | llvm/test/tools/llvm-objdump/X86/relocations-in-nonrelocatable.test | 9 | ||||
-rw-r--r-- | llvm/tools/llvm-objdump/llvm-objdump.cpp | 4 |
5 files changed, 23 insertions, 20 deletions
diff --git a/llvm/include/llvm/Object/ELFObjectFile.h b/llvm/include/llvm/Object/ELFObjectFile.h index b01fa1da4b3..5ee90ee9ea7 100644 --- a/llvm/include/llvm/Object/ELFObjectFile.h +++ b/llvm/include/llvm/Object/ELFObjectFile.h @@ -640,9 +640,6 @@ ELFObjectFile<ELFT>::section_rel_end(DataRefImpl Sec) const { template <class ELFT> section_iterator ELFObjectFile<ELFT>::getRelocatedSection(DataRefImpl Sec) const { - if (EF.getHeader()->e_type != ELF::ET_REL) - return section_end(); - const Elf_Shdr *EShdr = getSection(Sec); uintX_t Type = EShdr->sh_type; if (Type != ELF::SHT_REL && Type != ELF::SHT_RELA) @@ -682,14 +679,20 @@ ELFObjectFile<ELFT>::getRelocationSymbol(DataRefImpl Rel) const { } template <class ELFT> -uint64_t ELFObjectFile<ELFT>::getRelocationOffset(DataRefImpl Rel) const { - assert(EF.getHeader()->e_type == ELF::ET_REL && - "Only relocatable object files have relocation offsets"); - const Elf_Shdr *sec = getRelSection(Rel); - if (sec->sh_type == ELF::SHT_REL) - return getRel(Rel)->r_offset; - - return getRela(Rel)->r_offset; +uint64_t ELFObjectFile<ELFT>::getRelocationOffset(DataRefImpl Rel) const {
+ const Elf_Shdr *sec = getRelSection(Rel);
+ uint64_t Offset = sec->sh_type == ELF::SHT_REL ?
+ getRel(Rel)->r_offset :
+ getRela(Rel)->r_offset;
+ if (EF.getHeader()->e_type == ELF::ET_EXEC ||
+ EF.getHeader()->e_type == ELF::ET_DYN) {
+ // For an executable file or a shared object, the value is the virtual
+ // address of the storage unit affected by the relocation.
+ auto SectionIter = getRelocatedSection(toDRI(sec));
+ if (SectionIter != section_end())
+ Offset -= SectionIter->getAddress();
+ }
+ return Offset; } template <class ELFT> diff --git a/llvm/test/Object/objdump-reloc-shared.test b/llvm/test/Object/objdump-reloc-shared.test deleted file mode 100644 index d899ffb6087..00000000000 --- a/llvm/test/Object/objdump-reloc-shared.test +++ /dev/null @@ -1,5 +0,0 @@ -RUN: llvm-objdump -r %p/Inputs/elf-reloc-no-sym.x86_64 \ -RUN: | FileCheck %s - -; CHECK: elf-reloc-no-sym.x86_64: file format ELF64-x86-64 -; CHECK-NOT: {{.}} diff --git a/llvm/test/tools/llvm-objdump/X86/Inputs/relocations-in-nonrelocatable.elf-x86_64 b/llvm/test/tools/llvm-objdump/X86/Inputs/relocations-in-nonrelocatable.elf-x86_64 Binary files differnew file mode 100644 index 00000000000..bb706c948cb --- /dev/null +++ b/llvm/test/tools/llvm-objdump/X86/Inputs/relocations-in-nonrelocatable.elf-x86_64 diff --git a/llvm/test/tools/llvm-objdump/X86/relocations-in-nonrelocatable.test b/llvm/test/tools/llvm-objdump/X86/relocations-in-nonrelocatable.test new file mode 100644 index 00000000000..4860b91dd6a --- /dev/null +++ b/llvm/test/tools/llvm-objdump/X86/relocations-in-nonrelocatable.test @@ -0,0 +1,9 @@ +// This test checks that relocation in nonrelocatable files are printed
+// RUN: llvm-objdump -r %p/Inputs/relocations-in-nonrelocatable.elf-x86_64 | FileCheck %s
+
+// (main.c)
+// void g(void){}
+// int main(void) { g(); };
+// gcc main.c -o main -Wl,--emit-relocs
+
+CHECK: 00000000000000f8 R_X86_64_PC32 g-4-P
\ No newline at end of file diff --git a/llvm/tools/llvm-objdump/llvm-objdump.cpp b/llvm/tools/llvm-objdump/llvm-objdump.cpp index f436183f065..7f49efd8f84 100644 --- a/llvm/tools/llvm-objdump/llvm-objdump.cpp +++ b/llvm/tools/llvm-objdump/llvm-objdump.cpp @@ -1188,10 +1188,6 @@ static void DisassembleObject(const ObjectFile *Obj, bool InlineRelocs) { void llvm::PrintRelocations(const ObjectFile *Obj) { StringRef Fmt = Obj->getBytesInAddress() > 4 ? "%016" PRIx64 : "%08" PRIx64; - // Regular objdump doesn't print relocations in non-relocatable object - // files. - if (!Obj->isRelocatableObject()) - return; for (const SectionRef &Section : ToolSectionFilter(*Obj)) { if (Section.relocation_begin() == Section.relocation_end()) |