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Simplify AArch64 isRelRelative 

This patch simplifies the isRelRelative for AArch64 and add the missing
ones for bootstrap and test-suite.  It also adds more testing for
shared object creation.

llvm-svn: 264322
This commit is contained in:
Adhemerval Zanella 2016-03-24 19:12:14 +00:00
parent c74ebd0ef9
commit 3db3f6d83a
2 changed files with 36 additions and 17 deletions
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25
lld/ELF/Target.cpp
View File

@ -1223,12 +1223,25 @@ AArch64TargetInfo::AArch64TargetInfo() {
}
bool AArch64TargetInfo::isRelRelative(uint32_t Type) const {
return Type == R_AARCH64_PREL32 || Type == R_AARCH64_ADR_PREL_PG_HI21 ||
Type == R_AARCH64_LDST8_ABS_LO12_NC ||
Type == R_AARCH64_LDST32_ABS_LO12_NC ||
Type == R_AARCH64_LDST64_ABS_LO12_NC ||
Type == R_AARCH64_ADD_ABS_LO12_NC || Type == R_AARCH64_CALL26 ||
Type == R_AARCH64_CONDBR19;
switch (Type) {
default:
return false;
case R_AARCH64_PREL32:
case R_AARCH64_ADR_PREL_LO21:
case R_AARCH64_ADR_PREL_PG_HI21:
case R_AARCH64_ADR_GOT_PAGE:
case R_AARCH64_LDST8_ABS_LO12_NC:
case R_AARCH64_LDST16_ABS_LO12_NC:
case R_AARCH64_LDST32_ABS_LO12_NC:
case R_AARCH64_LDST64_ABS_LO12_NC:
case R_AARCH64_LDST128_ABS_LO12_NC:
case R_AARCH64_ADD_ABS_LO12_NC:
case R_AARCH64_CALL26:
case R_AARCH64_JUMP26:
case R_AARCH64_CONDBR19:
case R_AARCH64_TSTBR14:
return true;
}
}
bool AArch64TargetInfo::isTlsGlobalDynamicRel(uint32_t Type) const {

28
lld/test/ELF/aarch64-relative.s
View File

@ -2,19 +2,25 @@
// RUN: llvm-mc -filetype=obj -triple=aarch64-unknown-freebsd %s -o %t.o
// RUN: ld.lld %t.o -o %t.so -shared
// RUN: llvm-readobj -r %t.so | FileCheck %s
adrp x8, .Lfoo
strb w9, [x8, :lo12:.Lfoo]
ldr w0, [x8, :lo12:.Lfoo]
ldr x0, [x8, :lo12:.Lfoo]
add x0, x0, :lo12:.Lfoo
bl .Lfoo
b.eq .Lfoo
.data
.Lfoo:
adr x8, .Lfoo // R_AARCH64_ADR_PREL_LO21
adrp x8, .Lfoo // R_AARCH64_ADR_PREL_PG_HI21
strb w9, [x8, :lo12:.Lfoo] // R_AARCH64_LDST8_ABS_LO12_NC
ldr h17, [x19, :lo12:.Lfoo] // R_AARCH64_LDST16_ABS_LO12_NC
ldr w0, [x8, :lo12:.Lfoo] // R_AARCH64_LDST32_ABS_LO12_NC
ldr x0, [x8, :lo12:.Lfoo] // R_AARCH64_LDST64_ABS_LO12_NC
ldr q20, [x19, #:lo12:.Lfoo] // R_AARCH64_LDST128_ABS_LO12_NC
add x0, x0, :lo12:.Lfoo // R_AARCH64_ADD_ABS_LO12_NC
bl .Lfoo // R_AARCH64_CALL26
b .Lfoo // R_AARCH64_JUMP26
beq .Lfoo // R_AARCH64_CONDBR19
.Lbranch:
tbz x1, 7, .Lbranch // R_AARCH64_TSTBR14
.data
.Lfoo:
.rodata
.long .Lfoo - .
.rodata
.long .Lfoo - .
// CHECK: Relocations [
// CHECK-NEXT: ]