static Defined *MipsGpDisp;
static Defined *MipsLocalGp;
- // __rela_iplt_end or __rel_iplt_end
+ // __rel{,a}_iplt_{start,end} symbols.
+ static Defined *RelaIpltStart;
static Defined *RelaIpltEnd;
};
template <class ELFT> void Writer<ELFT>::addRelIpltSymbols() {
if (Config->Relocatable || needsInterpSection())
return;
- StringRef S = Config->IsRela ? "__rela_iplt_start" : "__rel_iplt_start";
- addOptionalRegular(S, In.RelaIplt, 0, STV_HIDDEN, STB_WEAK);
- S = Config->IsRela ? "__rela_iplt_end" : "__rel_iplt_end";
- ElfSym::RelaIpltEnd =
- addOptionalRegular(S, In.RelaIplt, 0, STV_HIDDEN, STB_WEAK);
+ // By default, __rela_iplt_{start,end} belong to a dummy section 0
+ // because .rela.plt might be empty and thus removed from output.
+ // We'll override Out::ElfHeader with In.RelaIplt later when we are
+ // sure that .rela.plt exists in output.
+ ElfSym::RelaIpltStart = addOptionalRegular(
+ Config->IsRela ? "__rela_iplt_start" : "__rel_iplt_start",
+ Out::ElfHeader, 0, STV_HIDDEN, STB_WEAK);
+
+ ElfSym::RelaIpltEnd = addOptionalRegular(
+ Config->IsRela ? "__rela_iplt_end" : "__rel_iplt_end",
+ Out::ElfHeader, 0, STV_HIDDEN, STB_WEAK);
}
template <class ELFT>
ElfSym::GlobalOffsetTable->Section = GotSection;
}
- if (ElfSym::RelaIpltEnd)
+ // .rela_iplt_{start,end} mark the start and the end of .rela.plt section.
+ if (ElfSym::RelaIpltStart && !In.RelaIplt->empty()) {
+ ElfSym::RelaIpltStart->Section = In.RelaIplt;
+ ElfSym::RelaIpltEnd->Section = In.RelaIplt;
ElfSym::RelaIpltEnd->Value = In.RelaIplt->getSize();
+ }
PhdrEntry *Last = nullptr;
PhdrEntry *LastRO = nullptr;
--- /dev/null
+// REQUIRES: x86
+
+// Verifies that .rela_iplt_{start,end} point to a dummy section
+// if .rela.iplt does not exist.
+
+// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
+// RUN: ld.lld -static %t.o -o %t.exe
+// RUN: llvm-objdump -syms %t.exe | FileCheck %s
+
+// CHECK: 0000000000200000 .text 00000000 .hidden __rela_iplt_end
+// CHECK: 0000000000200000 .text 00000000 .hidden __rela_iplt_start
+
+.globl _start
+_start:
+ movl $__rela_iplt_start, %edx
+ movl $__rela_iplt_end, %edx