Index: lld/trunk/ELF/InputSection.cpp =================================================================== --- lld/trunk/ELF/InputSection.cpp +++ lld/trunk/ELF/InputSection.cpp @@ -268,6 +268,11 @@ template typename EHInputSection::uintX_t EHInputSection::getOffset(uintX_t Offset) { + // The file crtbeginT.o has relocations pointing to the start of an empty + // .eh_frame that is known to be the first in the link. It does that to + // identify the start of the output .eh_frame. Handle this special case. + if (this->getSectionHdr()->sh_size == 0) + return Offset; std::pair *I = this->getRangeAndSize(Offset).first; uintX_t Base = I->second; if (Base == uintX_t(-1)) Index: lld/trunk/test/ELF/ehframe-relocation.s =================================================================== --- lld/trunk/test/ELF/ehframe-relocation.s +++ lld/trunk/test/ELF/ehframe-relocation.s @@ -0,0 +1,29 @@ +// REQUIRES: x86 +// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o +// RUN: ld.lld %t.o -o %t +// RUN: llvm-readobj -s %t | FileCheck %s +// RUN: llvm-objdump -d %t | FileCheck --check-prefix=DISASM %s + +// CHECK: Name: .eh_frame +// CHECK-NEXT: Type: SHT_X86_64_UNWIND +// CHECK-NEXT: Flags [ +// CHECK-NEXT: SHF_ALLOC +// CHECK-NEXT: ] +// CHECK-NEXT: Address: 0x10120 +// CHECK-NEXT: Offset: +// CHECK-NEXT: Size: 0 + +// 0x10120 = 65824 +// 0x10120 + 5 = 65829 +// DISASM: Disassembly of section .text: +// DISASM-NEXT: _start: +// DISASM-NEXT: 11000: {{.*}} movq 65824, %rax +// DISASM-NEXT: 11008: {{.*}} movq 65829, %rax + +.section .eh_frame,"ax",@unwind + +.section .text +.globl _start +_start: + movq .eh_frame, %rax + movq .eh_frame + 5, %rax