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llvm-project/lld/test/ELF/arm-pie-relative.s

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[ELF] Add R_ARM_RELATIVE to relocations that can be applied to GotSection When compiling -fpie and linking with the --pie option the R_ARM_GOTBREL relocation to D is resolved by writing the value of D into the .got slot and emitting an R_ARM_RELATIVE relocation for it. This changes adds the R_ARM_RELATIVE relocation to the switch in relocateOne() so we can process the GotSection relocation to write the value of the variable as well as emitting the dynamic relocation. Differential revision: https://reviews.llvm.org/D27678 llvm-svn: 289527
2016-12-13 18:42:05 +08:00
// RUN: llvm-mc -filetype=obj -triple=armv7a-none-linux-gnueabi %s -o %t
// RUN: ld.lld %t --pie -o %t2
// RUN: llvm-readobj -r %t2 | FileCheck %s
// RUN: llvm-objdump -s %t2 | FileCheck %s --check-prefix=GOT
// REQUIRES: arm
// Test that a R_ARM_GOT_BREL relocation with PIE results in a R_ARM_RELATIVE
// dynamic relocation
.syntax unified
.text
.global _start
_start:
.word sym(GOT)
.data
.global sym
sym:
.word 0
// CHECK: Relocations [
// CHECK-NEXT: Section (4) .rel.dyn {
ELF: Place relro sections after non-relro sections in r/w segment. This is in preparation for my next change, which will introduce a relro nobits section. That requires that relro sections appear at the end of the progbits part of the r/w segment so that the relro nobits section can appear contiguously. Because of the amount of churn required in the test suite, I'm making this change separately. llvm-svn: 291523
2017-01-10 09:21:30 +08:00
// CHECK-NEXT: 0x3058 R_ARM_RELATIVE
[ELF] Add R_ARM_RELATIVE to relocations that can be applied to GotSection When compiling -fpie and linking with the --pie option the R_ARM_GOTBREL relocation to D is resolved by writing the value of D into the .got slot and emitting an R_ARM_RELATIVE relocation for it. This changes adds the R_ARM_RELATIVE relocation to the switch in relocateOne() so we can process the GotSection relocation to write the value of the variable as well as emitting the dynamic relocation. Differential revision: https://reviews.llvm.org/D27678 llvm-svn: 289527
2016-12-13 18:42:05 +08:00
// GOT: Contents of section .got:
ELF: Place relro sections after non-relro sections in r/w segment. This is in preparation for my next change, which will introduce a relro nobits section. That requires that relro sections appear at the end of the progbits part of the r/w segment so that the relro nobits section can appear contiguously. Because of the amount of churn required in the test suite, I'm making this change separately. llvm-svn: 291523
2017-01-10 09:21:30 +08:00
// GOT-NEXT: 3058 00200000