summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
-rw-r--r--llvm/include/llvm/Object/ELFObjectFile.h25
-rw-r--r--llvm/test/Object/objdump-reloc-shared.test5
-rw-r--r--llvm/test/tools/llvm-objdump/X86/Inputs/relocations-in-nonrelocatable.elf-x86_64bin0 -> 9731 bytes
-rw-r--r--llvm/test/tools/llvm-objdump/X86/relocations-in-nonrelocatable.test9
-rw-r--r--llvm/tools/llvm-objdump/llvm-objdump.cpp4
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
new file mode 100644
index 00000000000..bb706c948cb
--- /dev/null
+++ b/llvm/test/tools/llvm-objdump/X86/Inputs/relocations-in-nonrelocatable.elf-x86_64
Binary files differ
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())
OpenPOWER on IntegriCloud