[llvm-readobj/llvm-readelf] - Eliminate the elf-groups.x86_64 precompiled binary from the inputs.

[grimar]

Summary

We do not need the elf-groups.x86_64. In one of the tests, it was
used for no solid reason, and for the second test case we can use
YAML input with SHT_GROUP sections.

The patch performs a cleanup of one of the test cases, removes another
one completely (since during the review was found out it actually
duplicates one of the existent tests) and removes the precompiled binary.

[jhenderson]

test/tools/llvm-readobj/elf-groups.test

2

Remove "the".

47

I'm not sure the OSABI is relevant?

test/tools/llvm-readobj/print-section.test

1

I think this test can just be deleted entirely actually. We have string-dump.test and string-dump-multi.test now.

[grimar]

• Addressed review comments.

test/tools/llvm-readobj/elf-groups.test

47

No. Removed.

test/tools/llvm-readobj/print-section.test

1

Removed, string-dump.test looks good.

[jhenderson]

LGTM.

[alexander-shaposhnikov]

LG, thanks!

test/tools/llvm-readobj/elf-groups.test

-# Source file compiled:
-##include <iostream>
-# #include <typeinfo>
-#template <class A>
-#void foo(A variable) {
-#  std::cout << "foo is " << typeid(A).name() << "\n";
-#}
-#int main () {
-#  char x = 'x';
-#  int y = 1;
-#  foo(x);
-#  foo(y);
-#  return 0;
-#}
+## Check that llvm-readelf and llvm-readobj can dump
+## the SHT_GROUP sections properly.
 
-RUN: llvm-readobj -g %p/Inputs/elf-groups.x86_64 \
-RUN:   | FileCheck %s
-RUN: llvm-readelf -g %p/Inputs/elf-groups.x86_64 \
-RUN:   | FileCheck --check-prefix="GNU" %s
-CHECK:         Groups {
-CHECK-NEXT:      Group {
-CHECK-NEXT:        Name: .group (92)
-CHECK-NEXT:        Index: 1
-CHECK-NEXT:        Link: 23
-CHECK-NEXT:        Info: 17
-CHECK-NEXT:        Type: COMDAT (0x1)
-CHECK-NEXT:        Signature: _Z3fooIcEvT_
-CHECK-NEXT:        Section(s) in group [
-CHECK-NEXT:          .text._Z3fooIcEvT_ (10)
-CHECK-NEXT:          .rela.text._Z3fooIcEvT_ (11)
-CHECK-NEXT:        ]
-CHECK-NEXT:      }
-CHECK-NEXT:      Group {
-CHECK-NEXT:        Name: .group (92)
-CHECK-NEXT:        Index: 2
-CHECK-NEXT:        Link: 23
-CHECK-NEXT:        Info: 18
-CHECK-NEXT:        Type: COMDAT (0x1)
-CHECK-NEXT:        Signature: _Z3fooIiEvT_
-CHECK-NEXT:        Section(s) in group [
-CHECK-NEXT:          .text._Z3fooIiEvT_ (12)
-CHECK-NEXT:          .rela.text._Z3fooIiEvT_ (13)
-CHECK-NEXT:        ]
-CHECK-NEXT:      }
+# RUN: yaml2obj %s -o %t.o
+# RUN: llvm-readobj -g %t.o | FileCheck %s
+# RUN: llvm-readelf -g %t.o | FileCheck --check-prefix=GNU %s
 
-GNU:COMDAT group section [    1] `.group' [_Z3fooIcEvT_] contains 2 sections:
-GNU-NEXT:   [Index]    Name
-GNU-NEXT:   [   10]   .text._Z3fooIcEvT_
-GNU-NEXT:   [   11]   .rela.text._Z3fooIcEvT_
-GNU:COMDAT group section [    2] `.group' [_Z3fooIiEvT_] contains 2 sections:
-GNU-NEXT:   [Index]    Name
-GNU-NEXT:   [   12]   .text._Z3fooIiEvT_
-GNU-NEXT:   [   13]   .rela.text._Z3fooIiEvT_
-GNU:COMDAT group section [    3] `.group' [_ZNKSt9type_info4nameEv] contains 1 sections:
-GNU-NEXT:   [Index]    Name
-GNU-NEXT:   [   14]   .text._ZNKSt9type_info4nameEv
+# CHECK:      Groups {
+# CHECK-NEXT:   Group {
+# CHECK-NEXT:     Name: .group
+# CHECK-NEXT:     Index: 1
+# CHECK-NEXT:     Link: 7
+# CHECK-NEXT:     Info: 1
+# CHECK-NEXT:     Type: COMDAT
+# CHECK-NEXT:     Signature: foo
+# CHECK-NEXT:     Section(s) in group [
+# CHECK-NEXT:       .text.foo
+# CHECK-NEXT:       .rela.text.foo
+# CHECK-NEXT:     ]
+# CHECK-NEXT:   }
+# CHECK-NEXT:   Group {
+# CHECK-NEXT:     Name: .group1
+# CHECK-NEXT:     Index: 2
+# CHECK-NEXT:     Link: 7
+# CHECK-NEXT:     Info: 2
+# CHECK-NEXT:     Type: COMDAT
+# CHECK-NEXT:     Signature: bar
+# CHECK-NEXT:     Section(s) in group [
+# CHECK-NEXT:       .text.bar
+# CHECK-NEXT:       .rela.text.bar
+# CHECK-NEXT:     ]
+# CHECK-NEXT:   }
+
+# GNU:      COMDAT group section [    1] `.group' [foo] contains 2 sections:
+# GNU-NEXT:  [Index]  Name
+# GNU-NEXT:  [    3] .text.foo
+# GNU-NEXT:  [    4] .rela.text.foo
+# GNU:      COMDAT group section [    2] `.group1' [bar] contains 2 sections:
+# GNU-NEXT:  [Index]  Name
+# GNU-NEXT:  [    5] .text.bar
+# GNU-NEXT:  [    6] .rela.text.bar
+
+--- !ELF
+FileHeader:
+  Class:   ELFCLASS64
+  Data:    ELFDATA2LSB
+  OSABI:   ELFOSABI_GNU
+  Type:    ET_REL
+  Machine: EM_X86_64
+Sections:
+  - Name: .group
+    Type: SHT_GROUP
+    Link: .symtab
+    Info: foo
+    Members:
+      - SectionOrType: GRP_COMDAT
+      - SectionOrType: .text.foo
+      - SectionOrType: .rela.text.foo
+  - Name: .group1
+    Type: SHT_GROUP
+    Link: .symtab
+    Info: bar
+    Members:
+      - SectionOrType: GRP_COMDAT
+      - SectionOrType: .text.bar
+      - SectionOrType: .rela.text.bar
+  - Name:  .text.foo
+    Type:  SHT_PROGBITS
+  - Name: .rela.text.foo
+    Type: SHT_RELA
+    Link: .symtab
+    Info: .text.foo
+  - Name: .text.bar
+    Type: SHT_PROGBITS
+  - Name: .rela.text.bar
+    Type: SHT_RELA
+    Link: .symtab
+    Info: .text.bar
+Symbols:
+  - Name:    foo
+    Section: .text.foo
+  - Name:    bar
+    Section: .text.bar

test/tools/llvm-readobj/print-section.test

-RUN: llvm-readobj -p .text %p/Inputs/elf-groups.x86_64 \
-RUN:     | FileCheck %s
+## Check that llvm-readobj and llvm-readelf can dump the content
+## of the section as a string.
 
-CHECK: [     0]  UH..H....E.
-CHECK: [     f]  .E.x.E..
-CHECK: [    1a]  ..}..
-CHECK: [    23]  .}..
-CHECK: [    2b]  1.H...].
+# RUN: yaml2obj %s -o %t.o
+# RUN: llvm-readobj -p .text %t.o | FileCheck %s
+# RUN: llvm-readelf -p .text %t.o | FileCheck %s
+
+# CHECK:      [     0]  UH..H....E.
+# CHECK-NEXT: [     f]  .E.x.E..
+# CHECK-NEXT: [    1a]  ..}..
+# CHECK-NEXT: [    23]  .}..
+# CHECK-NEXT: [    2b]  1.H...].
+
+--- !ELF
+FileHeader:
+  Class:   ELFCLASS64
+  Data:    ELFDATA2LSB
+  OSABI:   ELFOSABI_GNU
+  Type:    ET_REL
+  Machine: EM_X86_64
+Sections:
+  - Name:         .text
+    Type:         SHT_PROGBITS
+    Flags:        [ SHF_ALLOC, SHF_EXECINSTR ]
+    AddressAlign: 0x0000000000000010
+    Content:      554889E54883EC10C745FC00000000C645FB78C745F4010000000FBE7DFBE8000000008B7DF4E80000000031C04883C4105DC3