use split-file for testing

Author: sivan-shani

lld/test/ELF/Inputs/aarch64-func3-pac-replace.s

@@ -1,4 +1,4 @@
-// This file replace gnu properties with aarch64 build attributes.
+// Declare file properties exclusively with aarch64 build attributes.
 
 .aeabi_subsection aeabi_feature_and_bits, optional, uleb128
 .aeabi_attribute Tag_Feature_PAC, 1

lld/test/ELF/Inputs/build-attributes-merged-2.s

@@ -0,0 +1,53 @@
+# RUN: rm -rf %t && split-file %s %t && cd %t
+
+# RUN: llvm-mc -triple=aarch64 -filetype=obj %s -o %t1.o
+# RUN: llvm-mc -triple=aarch64 -filetype=obj merged-mixed-2.s -o %t2.o
+# RUN: llvm-mc -triple=aarch64 -filetype=obj merged-mixed-3.s -o %t3.o
+# RUN: ld.lld -r %t1.o %t2.o %t3.o -o %t.merged.o
+# RUN: llvm-readelf -n %t.merged.o | FileCheck %s
+
+# CHECK: Displaying notes found in: .note.gnu.property
+# CHECK-NEXT:   Owner                Data size 	Description
+# CHECK-NEXT:   GNU                  0x00000028	NT_GNU_PROPERTY_TYPE_0 (property note)
+# CHECK-NEXT:     Properties:    aarch64 feature: BTI, PAC
+# CHECK-NEXT:         AArch64 PAuth ABI core info: platform 0x31 (unknown), version 0x13
+
+
+.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
+
+#--- merged-mixed-2.s
+.section ".note.gnu.property", "a"
+  .long 4           // Name length is always 4 ("GNU")
+  .long end - begin // Data length
+  .long 5           // Type: NT_GNU_PROPERTY_TYPE_0
+  .asciz "GNU"      // Name
+  .p2align 3
+begin:
+  .long 0xc0000000 // GNU_PROPERTY_AARCH64_FEATURE_1_AND
+  .long 4
+  .long 7          // GNU_PROPERTY_AARCH64_FEATURE_1_BTI, PAC and GCS
+  .long 0
+  # PAuth ABI property note
+  .long 0xc0000001  // Type: GNU_PROPERTY_AARCH64_FEATURE_PAUTH
+  .long 16          // Data size
+  .quad 49          // PAuth ABI platform
+  .quad 19          // PAuth ABI version
+  .p2align 3        // Align to 8 byte for 64 bit
+end:
+
+#--- merged-mixed-3.s
+.section ".note.gnu.property", "a"
+.long 4
+.long 0x10
+.long 0x5
+.asciz "GNU"
+.long 0xc0000000 // GNU_PROPERTY_AARCH64_FEATURE_1_AND
+.long 4
+.long 3          // GNU_PROPERTY_AARCH64_FEATURE_1_BTI and PAC
+.long 0

lld/test/ELF/Inputs/build-attributes-merged-3.s

@@ -0,0 +1,42 @@
+# RUN: rm -rf %t && split-file %s %t && cd %t
+
+# RUN: llvm-mc -triple=aarch64 -filetype=obj %s -o %t1.o
+# RUN: llvm-mc -triple=aarch64 -filetype=obj merged-2.s -o %t2.o
+# RUN: llvm-mc -triple=aarch64 -filetype=obj merged-3.s -o %t3.o
+# RUN: ld.lld -r %t1.o %t2.o %t3.o -o %t.merged.o
+# RUN: llvm-readelf -n %t.merged.o | FileCheck %s
+
+# CHECK: Displaying notes found in: .note.gnu.property
+# CHECK-NEXT:  Owner                Data size 	Description
+# CHECK-NEXT:  GNU                  0x00000028	NT_GNU_PROPERTY_TYPE_0 (property note)
+# CHECK-NEXT:    Properties:    aarch64 feature: BTI
+# CHECK-NEXT:        AArch64 PAuth ABI core info: platform 0x31 (unknown), version 0x13
+
+
+.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
+
+
+#--- merged-2.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
+
+
+#--- merged-3.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