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llvm-project/lld/test/ELF/aarch64-abs64-dyn.s

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[lld] [ELF/AArch64] Fix R_AARCH64_ABS64 in Shared mode This patch fixes the R_AARCH64_ABS64 relocation when used in shared mode, where it requires a dynamic R_AARCH64_RELATIVE relocation. To correct set the addend on the dynamic relocation (since it will be used by the dynamic linker), a new TargetInfo specific hook was created (getDynRelativeAddend) to get the correct addend based on relocation type. The patch fixes the issues when creating shared library code against {init,fini}_array, where it issues R_AARCH64_ABS64 relocation against local symbols. llvm-svn: 261651
2016-02-24 00:54:40 +08:00
// REQUIRES: aarch64
// RUN: llvm-mc -filetype=obj -triple=aarch64-none-linux %s -o %t.o
Fix the aarch64 logic for dynamic relocations. There is nothing aarch64 specific in here. If a symbol can be preempted, we need to copy the full relocation to the dynamic linker. If a symbol cannot be preempted, we can make the dynamic linker life easier and produce a relative relocation. This is directly equivalent to R_X86_64_64 to R_x86_64_RELATIVE conversion. llvm-svn: 261678
2016-02-24 04:19:44 +08:00
// Creates a R_AARCH64_ABS64 relocation against foo and bar
.globl foo
foo:
.global bar
.hidden bar
bar:
.data
.xword foo
.xword bar
[lld] [ELF/AArch64] Fix R_AARCH64_ABS64 in Shared mode This patch fixes the R_AARCH64_ABS64 relocation when used in shared mode, where it requires a dynamic R_AARCH64_RELATIVE relocation. To correct set the addend on the dynamic relocation (since it will be used by the dynamic linker), a new TargetInfo specific hook was created (getDynRelativeAddend) to get the correct addend based on relocation type. The patch fixes the issues when creating shared library code against {init,fini}_array, where it issues R_AARCH64_ABS64 relocation against local symbols. llvm-svn: 261651
2016-02-24 00:54:40 +08:00
// RUN: ld.lld -shared -o %t.so %t.o
// RUN: llvm-readobj -symbols -dyn-relocations %t.so | FileCheck %s
Fix the aarch64 logic for dynamic relocations. There is nothing aarch64 specific in here. If a symbol can be preempted, we need to copy the full relocation to the dynamic linker. If a symbol cannot be preempted, we can make the dynamic linker life easier and produce a relative relocation. This is directly equivalent to R_X86_64_64 to R_x86_64_RELATIVE conversion. llvm-svn: 261678
2016-02-24 04:19:44 +08:00
// CHECK: Dynamic Relocations {
// CHECK-NEXT: {{.*}} R_AARCH64_RELATIVE - [[BAR_ADDR:.*]]
[ELF] - Implemented -z combrelocs/nocombreloc. This is the option which sorts relocs to optimize dynamic linker performance. -z combelocs is the default in gold, also it ignores -z nocombreloc, this patch do the same. Patch sorts relocations by symbols only and do not create any DT_REL[A]COUNT entries. That is different with what gold/bfd do. More information about option is here: http://www.airs.com/blog/archives/186 http://people.redhat.com/jakub/prelink.pdf, p.2 Differential revision: http://reviews.llvm.org/D19528 llvm-svn: 269066
2016-05-10 23:47:57 +08:00
// CHECK-NEXT: {{.*}} R_AARCH64_ABS64 foo 0x0
Fix the aarch64 logic for dynamic relocations. There is nothing aarch64 specific in here. If a symbol can be preempted, we need to copy the full relocation to the dynamic linker. If a symbol cannot be preempted, we can make the dynamic linker life easier and produce a relative relocation. This is directly equivalent to R_X86_64_64 to R_x86_64_RELATIVE conversion. llvm-svn: 261678
2016-02-24 04:19:44 +08:00
// CHECK-NEXT: }
[lld] [ELF/AArch64] Fix R_AARCH64_ABS64 in Shared mode This patch fixes the R_AARCH64_ABS64 relocation when used in shared mode, where it requires a dynamic R_AARCH64_RELATIVE relocation. To correct set the addend on the dynamic relocation (since it will be used by the dynamic linker), a new TargetInfo specific hook was created (getDynRelativeAddend) to get the correct addend based on relocation type. The patch fixes the issues when creating shared library code against {init,fini}_array, where it issues R_AARCH64_ABS64 relocation against local symbols. llvm-svn: 261651
2016-02-24 00:54:40 +08:00
Fix the aarch64 logic for dynamic relocations. There is nothing aarch64 specific in here. If a symbol can be preempted, we need to copy the full relocation to the dynamic linker. If a symbol cannot be preempted, we can make the dynamic linker life easier and produce a relative relocation. This is directly equivalent to R_X86_64_64 to R_x86_64_RELATIVE conversion. llvm-svn: 261678
2016-02-24 04:19:44 +08:00
// CHECK: Symbols [
// CHECK: Symbol {
// CHECK: Name: bar
// CHECK-NEXT: Value: [[BAR_ADDR]]