| // REQUIRES: aarch64 |
| // RUN: rm -rf %t && split-file %s %t && cd %t |
| |
| // RUN: llvm-mc -triple=aarch64 -filetype=obj %s -o 1.o |
| // RUN: llvm-mc -triple=aarch64 -filetype=obj pauth-bti-gcs.s -o 2.o |
| // RUN: llvm-mc -triple=aarch64 -filetype=obj pauth-bti-pac.s -o 3.o |
| // RUN: ld.lld -r 1.o 2.o 3.o -o merged.o |
| // RUN: llvm-readelf -n merged.o | FileCheck %s --check-prefix=NOTE |
| |
| /// This test merges three object files with AArch64 build attributes. |
| /// All contain identical PAuth ABI info (platform/version), which must be preserved. |
| /// Only BTI is common across all three in the AND feature set, so the merged output |
| /// must show BTI only. PAC and GCS are present in subsets and should not appear. |
| |
| // NOTE: Displaying notes found in: .note.gnu.property |
| // NOTE-NEXT: Owner Data size Description |
| // NOTE-NEXT: GNU 0x00000028 NT_GNU_PROPERTY_TYPE_0 (property note) |
| // NOTE-NEXT: Properties: aarch64 feature: BTI |
| // NOTE-NEXT: AArch64 PAuth ABI core info: platform 0x31 (unknown), version 0x13 |
| |
| // CHECK: .note.gnu.property |
| // CHECK-NOT: .ARM.attributes |
| |
| .aeabi_subsection aeabi_pauthabi, required, uleb128 |
| .aeabi_attribute Tag_PAuth_Platform, 49 |
| .aeabi_attribute Tag_PAuth_Schema, 19 |
| .aeabi_subsection aeabi_feature_and_bits, optional, uleb128 |
| .aeabi_attribute Tag_Feature_BTI, 1 |
| .aeabi_attribute Tag_Feature_PAC, 1 |
| .aeabi_attribute Tag_Feature_GCS, 1 |
| |
| |
| //--- pauth-bti-gcs.s |
| .aeabi_subsection aeabi_pauthabi, required, uleb128 |
| .aeabi_attribute Tag_PAuth_Platform, 49 |
| .aeabi_attribute Tag_PAuth_Schema, 19 |
| .aeabi_subsection aeabi_feature_and_bits, optional, uleb128 |
| .aeabi_attribute Tag_Feature_BTI, 1 |
| .aeabi_attribute Tag_Feature_PAC, 0 |
| .aeabi_attribute Tag_Feature_GCS, 1 |
| |
| |
| //--- pauth-bti-pac.s |
| .aeabi_subsection aeabi_pauthabi, required, uleb128 |
| .aeabi_attribute Tag_PAuth_Platform, 49 |
| .aeabi_attribute Tag_PAuth_Schema, 19 |
| .aeabi_subsection aeabi_feature_and_bits, optional, uleb128 |
| .aeabi_attribute Tag_Feature_BTI, 1 |
| .aeabi_attribute Tag_Feature_PAC, 1 |
| .aeabi_attribute Tag_Feature_GCS, 0 |
