[llvm-objcopy] - Get rid of dynrel.elf precompiled binary from inputs.

We do not have to spread using the precompiled binaries in the tests,
when we can use YAML. This patch removes the dynrel.elf binary and adds
a few comments to the test cases.

Differential revision: https://reviews.llvm.org/D63641

llvm-svn: 364052

llvm/test/tools/llvm-objcopy/ELF/dynamic-relocations.test

@@ -1,19 +1,44 @@
-# RUN: llvm-objcopy %p/Inputs/dynrel.elf %t
-# RUN: llvm-readobj --sections --section-data %t | FileCheck %s
+## Check that llvm-objcopy can handle an object
+## containing dynamic relocations properly.
 
-#CHECK:         Name: .rela.plt
-#CHECK-NEXT:    Type: SHT_RELA
-#CHECK-NEXT:    Flags [
-#CHECK-NEXT:      SHF_ALLOC
-#CHECK-NEXT:    ]
-#CHECK-NEXT:    Address:
-#CHECK-NEXT:    Offset:
-#CHECK-NEXT:    Size: 24
-#CHECK-NEXT:    Link:
-#CHECK-NEXT:    Info:
-#CHECK-NEXT:    AddressAlignment: 8
-#CHECK-NEXT:    EntrySize: 24
-#CHECK-NEXT:    SectionData (
-#CHECK-NEXT:       0000: 18202000 00000000 07000000 01000000  |.  .............|
-#CHECK-NEXT:       0010: 00000000 00000000                    |........|
-#CHECK-NEXT:    )
+# RUN: yaml2obj %s > %t1
+# RUN: llvm-objcopy %t1 %t2
+# RUN: llvm-readobj --sections --section-data %t2 | FileCheck %s
+
+# CHECK:         Name: .rela.plt
+# CHECK-NEXT:    Type: SHT_RELA
+# CHECK-NEXT:    Flags [
+# CHECK-NEXT:      SHF_ALLOC
+# CHECK-NEXT:    ]
+# CHECK-NEXT:    Address:
+# CHECK-NEXT:    Offset:
+# CHECK-NEXT:    Size: 24
+# CHECK-NEXT:    Link:
+# CHECK-NEXT:    Info:
+# CHECK-NEXT:    AddressAlignment: 8
+# CHECK-NEXT:    EntrySize: 24
+# CHECK-NEXT:    SectionData (
+# CHECK-NEXT:       0000: 18202000 00000000 07000000 01000000  |.  .............|
+# CHECK-NEXT:       0010: 00000000 00000000                    |........|
+# CHECK-NEXT:    )
+
+--- !ELF
+FileHeader:
+  Class:   ELFCLASS64
+  Data:    ELFDATA2LSB
+  Type:    ET_EXEC
+  Machine: EM_X86_64
+Sections:
+  - Name:         .rela.plt
+    Type:         SHT_RELA
+    Flags:        [ SHF_ALLOC ]
+    Address:      0x0000000000200220
+    Link:         0
+    AddressAlign: 0x0000000000000008
+    Relocations:
+      - Offset: 0x0000000000202018
+        Symbol: foo
+        Type:   R_X86_64_JUMP_SLOT
+Symbols:
+  - Name:    foo
+    Binding: STB_GLOBAL

llvm/test/tools/llvm-objcopy/ELF/prefix-alloc-sections-dynrelocsec.test

@@ -1,5 +1,24 @@
-# RUN: llvm-objcopy --prefix-alloc-sections=.prefix %p/Inputs/dynrel.elf %t
-# RUN: llvm-readobj --sections %t | FileCheck %s
+## Check that llvm-objcopy can correctly add a prefix to
+## a dynamic relocation section and its target section.
+
+# RUN: yaml2obj %s > %t1
+# RUN: llvm-objcopy --prefix-alloc-sections=.prefix %t1 %t2
+# RUN: llvm-readobj --sections %t2 | FileCheck %s
 
 # CHECK: Name: .prefix.rela.plt
 # CHECK: Name: .prefix.plt
+
+--- !ELF
+FileHeader:
+  Class:   ELFCLASS64
+  Data:    ELFDATA2LSB
+  Type:    ET_EXEC
+  Machine: EM_X86_64
+Sections:
+  - Name:  .rela.plt
+    Type:  SHT_RELA
+    Flags: [ SHF_ALLOC ]
+    Link:  0
+  - Name:  .plt
+    Type:  SHT_PROGBITS
+    Flags: [ SHF_ALLOC, SHF_EXECINSTR ]