Currently, it is possible to use yaml2obj for producing SHT_GROUP sections
of type GRP_COMDAT. For LLD test case I need to produce an object with
a broken (different from GRP_COMDAT) type.
The patch teaches tool to do such things.
Differential revision: https://reviews.llvm.org/D50761
llvm-svn: 339764
--- /dev/null
+# RUN: yaml2obj %s -o %t
+# RUN: llvm-readobj -sections -elf-section-groups %t | FileCheck %s
+
+--- !ELF
+FileHeader:
+ Class: ELFCLASS64
+ Data: ELFDATA2LSB
+ Type: ET_REL
+ Machine: EM_X86_64
+Sections:
+ - Name: .group
+ Type: SHT_GROUP
+ Link: .symtab
+ Info: foo
+ Members:
+ - SectionOrType: 0xFF
+ - SectionOrType: 3
+Symbols:
+ Global:
+ - Name: foo
+
+## Check we are able to produce SHT_GROUP section with a custom Type (0xFF).
+# CHECK: Groups {
+# CHECK-NEXT: Group {
+# CHECK-NEXT: Name: .group
+# CHECK-NEXT: Index: 1
+# CHECK-NEXT: Link: 2
+# CHECK-NEXT: Info: 1
+# CHECK-NEXT: Type: COMDAT (0xFF)
+# CHECK-NEXT: Signature: foo
+# CHECK-NEXT: Section(s) in group [
+# CHECK-NEXT: .strtab (3)
+# CHECK-NEXT: ]
+# CHECK-NEXT: }
unsigned int sectionIndex = 0;
if (member.sectionNameOrType == "GRP_COMDAT")
sectionIndex = llvm::ELF::GRP_COMDAT;
- else if (SN2I.lookup(member.sectionNameOrType, sectionIndex)) {
+ else if (SN2I.lookup(member.sectionNameOrType, sectionIndex) &&
+ !to_integer(member.sectionNameOrType, sectionIndex)) {
WithColor::error() << "Unknown section referenced: '"
<< member.sectionNameOrType << "' at YAML section' "
<< Section.Name << "\n";