[PATCH] D28841: ELF: Add support for relocation type R_X86_64_8.
Peter Collingbourne via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Tue Jan 17 18:31:53 PST 2017
This revision was automatically updated to reflect the committed changes.
Closed by commit rL292330: ELF: Add support for relocation type R_X86_64_8. (authored by pcc).
Changed prior to commit:
https://reviews.llvm.org/D28841?vs=84789&id=84790#toc
Repository:
rL LLVM
https://reviews.llvm.org/D28841
Files:
lld/trunk/ELF/Target.cpp
lld/trunk/test/ELF/Inputs/x86-64-reloc-8-error.s
lld/trunk/test/ELF/Inputs/x86-64-reloc-8.s
lld/trunk/test/ELF/x86-64-reloc-8.s
Index: lld/trunk/test/ELF/x86-64-reloc-8.s
===================================================================
--- lld/trunk/test/ELF/x86-64-reloc-8.s
+++ lld/trunk/test/ELF/x86-64-reloc-8.s
@@ -0,0 +1,14 @@
+// REQUIRES: x86
+
+// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %S/Inputs/x86-64-reloc-8.s -o %t1
+// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %S/Inputs/x86-64-reloc-8-error.s -o %t2
+// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t
+// RUN: ld.lld -shared %t %t1 -o %t3
+
+// CHECK: Contents of section .text:
+// CHECK-NEXT: 200000 42
+
+// RUN: not ld.lld -shared %t %t2 -o %t4 2>&1 | FileCheck --check-prefix=ERROR %s
+// ERROR: relocation R_X86_64_8 out of range
+
+.byte foo
Index: lld/trunk/test/ELF/Inputs/x86-64-reloc-8.s
===================================================================
--- lld/trunk/test/ELF/Inputs/x86-64-reloc-8.s
+++ lld/trunk/test/ELF/Inputs/x86-64-reloc-8.s
@@ -0,0 +1,3 @@
+.globl foo
+.hidden foo
+foo = 0x42
Index: lld/trunk/test/ELF/Inputs/x86-64-reloc-8-error.s
===================================================================
--- lld/trunk/test/ELF/Inputs/x86-64-reloc-8-error.s
+++ lld/trunk/test/ELF/Inputs/x86-64-reloc-8-error.s
@@ -0,0 +1,3 @@
+.globl foo
+.hidden foo
+foo = 256
Index: lld/trunk/ELF/Target.cpp
===================================================================
--- lld/trunk/ELF/Target.cpp
+++ lld/trunk/ELF/Target.cpp
@@ -631,6 +631,7 @@
RelExpr X86_64TargetInfo<ELFT>::getRelExpr(uint32_t Type,
const SymbolBody &S) const {
switch (Type) {
+ case R_X86_64_8:
case R_X86_64_32:
case R_X86_64_32S:
case R_X86_64_64:
@@ -857,6 +858,10 @@
void X86_64TargetInfo<ELFT>::relocateOne(uint8_t *Loc, uint32_t Type,
uint64_t Val) const {
switch (Type) {
+ case R_X86_64_8:
+ checkUInt<8>(Loc, Val, Type);
+ *Loc = Val;
+ break;
case R_X86_64_32:
checkUInt<32>(Loc, Val, Type);
write32le(Loc, Val);
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