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llvm-project/lld/test/ELF/ppc64-weak-undef-call.s

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[PPC64] Remove support for ELF V1 ABI in LLD The current support for V1 ABI in LLD is incomplete. This patch removes V1 ABI support and changes the default behavior to V2 ABI, issuing an error when using the V1 ABI. It also updates the testcases to V2 and removes any V1 specific tests. Differential Revision: https://reviews.llvm.org/D46316 llvm-svn: 331529
2018-05-04 23:09:49 +08:00
# REQUIRES: ppc
# RUN: llvm-mc -filetype=obj -triple=powerpc64le-unknown-linux %s -o %t
# RUN: ld.lld %t -o %t2
# RUN: llvm-objdump -d %t2 | FileCheck %s
Revert "r250372 - [ELF2/PPC64] Remove now-dead weak/undef check" Unfortunately, the check was not as dead as I had thought, and adjusting the starting VA again exposed the problem. We end up trying to relocate the bl (using a 24-bit relative offset) to a symbol address of zero, and in general, that does not fit. Thus, reverting for now, and adding a test case. llvm-svn: 250423
2015-10-16 00:12:35 +08:00
# RUN: llvm-mc -filetype=obj -triple=powerpc64-unknown-linux %s -o %t
Rename ld.lld2 to ld.lld since it is the default. llvm-svn: 253437
2015-11-18 14:11:01 +08:00
# RUN: ld.lld %t -o %t2
Revert "r250372 - [ELF2/PPC64] Remove now-dead weak/undef check" Unfortunately, the check was not as dead as I had thought, and adjusting the starting VA again exposed the problem. We end up trying to relocate the bl (using a 24-bit relative offset) to a symbol address of zero, and in general, that does not fit. Thus, reverting for now, and adding a test case. llvm-svn: 250423
2015-10-16 00:12:35 +08:00
# RUN: llvm-objdump -d %t2 | FileCheck %s
# CHECK: Disassembly of section .text:
[PPC64] Remove support for ELF V1 ABI in LLD The current support for V1 ABI in LLD is incomplete. This patch removes V1 ABI support and changes the default behavior to V2 ABI, issuing an error when using the V1 ABI. It also updates the testcases to V2 and removes any V1 specific tests. Differential Revision: https://reviews.llvm.org/D46316 llvm-svn: 331529
2018-05-04 23:09:49 +08:00
.text
Revert "r250372 - [ELF2/PPC64] Remove now-dead weak/undef check" Unfortunately, the check was not as dead as I had thought, and adjusting the starting VA again exposed the problem. We end up trying to relocate the bl (using a 24-bit relative offset) to a symbol address of zero, and in general, that does not fit. Thus, reverting for now, and adding a test case. llvm-svn: 250423
2015-10-16 00:12:35 +08:00
.global _start
_start:
bl weakfunc
nop
blr
.weak weakfunc
# It does not really matter how we fixup the bl, if at all, because it needs to
[ELF2/PPC64] Don't create .plt entries for weak undef symbols Instead of specifically creating .plt entries for weak undef symbols, mirror the logic in r250584, and use canBePreempted to determine is a REL24 relocation needs a .plt entry. This might cause relocateOne to be called for a weak undef symbol, with a REL24 relocation, but ignore this as a special case (this will cause SA == 0, which won't happen under any other circumstance). llvm-svn: 250597
2015-10-17 08:48:20 +08:00
# be unreachable. But, we should link successfully. We should not, however,
# generate a .plt entry (this would be wasted space). For now, we do nothing
# (leaving the zero relative offset present in the input).
[PPC64] Remove support for ELF V1 ABI in LLD The current support for V1 ABI in LLD is incomplete. This patch removes V1 ABI support and changes the default behavior to V2 ABI, issuing an error when using the V1 ABI. It also updates the testcases to V2 and removes any V1 specific tests. Differential Revision: https://reviews.llvm.org/D46316 llvm-svn: 331529
2018-05-04 23:09:49 +08:00
# CHECK: 10010000: {{.*}} bl .+0
# CHECK: 10010004: {{.*}} nop
# CHECK: 10010008: {{.*}} blr