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[ELF][MIPS] Do not emit .got section in case of relocatable output 

llvm-svn: 276808
This commit is contained in:
Simon Atanasyan 2016-07-26 21:11:30 +00:00
parent 72170d2753
commit 240bc16532
2 changed files with 23 additions and 2 deletions
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4
lld/ELF/Writer.cpp
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@ -555,7 +555,7 @@ template <class ELFT> void Writer<ELFT>::addRelIpltSymbols() {
// The linker is expected to define some symbols depending on
// the linking result. This function defines such symbols.
template <class ELFT> void Writer<ELFT>::addReservedSymbols() {
if (Config->EMachine == EM_MIPS) {
if (Config->EMachine == EM_MIPS && !Config->Relocatable) {
// Define _gp for MIPS. st_value of _gp symbol will be updated by Writer
// so that it points to an absolute address which is relative to GOT.
// See "Global Data Symbols" in Chapter 6 in the following document:
@ -816,7 +816,7 @@ template <class ELFT> bool Writer<ELFT>::needsGot() {
// We add the .got section to the result for dynamic MIPS target because
// its address and properties are mentioned in the .dynamic section.
if (Config->EMachine == EM_MIPS)
if (Config->EMachine == EM_MIPS && !Config->Relocatable)
return true;
// If we have a relocation that is relative to GOT (such as GOTOFFREL),

21
lld/test/ELF/mips-relocatable.s Normal file
View File

@ -0,0 +1,21 @@
# Check linking MIPS code in case of -r linker's option.
# RUN: llvm-mc -filetype=obj -triple=mips-unknown-linux %s -o %t.o
# RUN: ld.lld -r -o %t-r.o %t.o
# RUN: llvm-objdump -s -t %t-r.o | FileCheck %s
# REQUIRES: mips
.text
.global __start
__start:
lw $t0,%call16(__start)($gp)
foo:
nop
.section .rodata, "a"
v:
.gpword foo
# CHECK-NOT: Contents of section .got:
# CHECK-NOT: {{.*}} _gp