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llvm-project/lld/test/ELF/ppc64-error-toc-restore.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
[PPC64] Fix toc restore nops offset for V2 ABI The PPC64 V2 ABI restores the toc base by loading from an offset of 24 from r1. This patch fixes the offset and updates the testcases from V1 to V2. It also issues an error when a nop is missing after a call to an external function. Differential Revision: https://reviews.llvm.org/D45892 llvm-svn: 330600
2018-04-23 23:01:24 +08:00
// RUN: llvm-mc -filetype=obj -triple=powerpc64le-unknown-linux %s -o %t.o
[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
// RUN: llvm-mc -filetype=obj -triple=powerpc64le-unknown-linux %p/Inputs/shared-ppc64.s -o %t2.o
// RUN: ld.lld -shared %t2.o -o %t2.so
// RUN: not ld.lld %t.o %t2.so -o %t 2>&1 | FileCheck %s
// RUN: llvm-mc -filetype=obj -triple=powerpc64-unknown-linux %s -o %t.o
// RUN: llvm-mc -filetype=obj -triple=powerpc64-unknown-linux %p/Inputs/shared-ppc64.s -o %t2.o
[PPC64] Fix toc restore nops offset for V2 ABI The PPC64 V2 ABI restores the toc base by loading from an offset of 24 from r1. This patch fixes the offset and updates the testcases from V1 to V2. It also issues an error when a nop is missing after a call to an external function. Differential Revision: https://reviews.llvm.org/D45892 llvm-svn: 330600
2018-04-23 23:01:24 +08:00
// RUN: ld.lld -shared %t2.o -o %t2.so
// RUN: not ld.lld %t.o %t2.so -o %t 2>&1 | FileCheck %s
# Calling external function bar needs a nop
[ELF][PPC64] Improve "call lacks nop" diagnostic and make it compatible with GCC<5.5 and GCC<6.4 GCC before r245813 (https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79439) did not emit nop after b/bl. This can happen with recursive calls. r245813 was back ported to GCC 5.5 and GCC 6.4. This is common, for example, libstdc++.a(locale.o) shipped with GCC 4.9 and many objects in netlib lapack can cause lld to error. gold allows such calls to the same section. Our __plt_foo symbol's `section` field is used for ThunkSection, so we can't implement a similar loosen rule easily. But we can make use of its `file` field which is currently NULL. Differential Revision: https://reviews.llvm.org/D71639
2019-12-18 08:45:04 +08:00
// CHECK: call to foo lacks nop, can't restore toc
[PPC64] Fix toc restore nops offset for V2 ABI The PPC64 V2 ABI restores the toc base by loading from an offset of 24 from r1. This patch fixes the offset and updates the testcases from V1 to V2. It also issues an error when a nop is missing after a call to an external function. Differential Revision: https://reviews.llvm.org/D45892 llvm-svn: 330600
2018-04-23 23:01:24 +08:00
.text
.abiversion 2
.global _start
_start:
bl foo