1 files changed, 113 insertions, 0 deletions
diff --git a/llvm/test/tools/yaml2obj/ELF/implicit-sections-info.yaml b/llvm/test/tools/yaml2obj/ELF/implicit-sections-info.yaml
new file mode 100644
index 00000000000..d7d530d3960
--- /dev/null
+++ b/llvm/test/tools/yaml2obj/ELF/implicit-sections-info.yaml
@@ -0,0 +1,113 @@
+## Check the values of sh_info fields set by default for
+## explicitly listed .dynstr, .dynsym, .strtab and .symtab
+## sections.
+##
+## For symbol table sections, sh_info has a value which is
+## one greater than the symbol table index of the last
+## local symbol.
+##
+## sh_info isn't set for string table sections.
+
+# RUN: yaml2obj --docnum=1 %s -o %t
+# RUN: llvm-readobj --sections %t | FileCheck %s --check-prefix=CASE1
+
+# CASE1:      Name: .symtab
+# CASE1:      Info:
+# CASE1-SAME: 2
+# CASE1:      Name: .strtab
+# CASE1:      Info:
+# CASE1-SAME: 0
+# CASE1:      Name: .dynsym
+# CASE1:      Info:
+# CASE1-SAME: 1
+# CASE1:      Name: .dynstr
+# CASE1:      Info:
+# CASE1-SAME: 0
+
+--- !ELF
+FileHeader:
+  Class:   ELFCLASS64
+  Data:    ELFDATA2LSB
+  Type:    ET_DYN
+  Machine: EM_X86_64
+Sections:
+  - Name:  .symtab
+    Type:  SHT_SYMTAB
+  - Name:  .strtab
+    Type:  SHT_STRTAB
+  - Name:  .dynsym
+    Type:  SHT_DYNSYM
+  - Name:  .dynstr
+    Type:  SHT_STRTAB
+Symbols:
+  - Name:    local
+  - Name:    global1
+    Binding: STB_GLOBAL
+DynamicSymbols:
+  - Name:    global2
+    Binding: STB_GLOBAL
+
+## In the case when these sections are not defined in YAML, the
+## behavior is the same as when we define them, but do not set the Info.
+
+# RUN: yaml2obj --docnum=2 %s -o %t
+# RUN: llvm-readobj --sections %t | FileCheck %s --check-prefix=CASE1
+
+--- !ELF
+FileHeader:
+  Class:   ELFCLASS64
+  Data:    ELFDATA2LSB
+  Type:    ET_DYN
+  Machine: EM_X86_64
+Symbols:
+  - Name:    local
+  - Name:    global1
+    Binding: STB_GLOBAL
+DynamicSymbols:
+  - Name:    global2
+    Binding: STB_GLOBAL
+
+## Check we are able to set any sh_info explicitly.
+
+# RUN: yaml2obj --docnum=3 %s -o %t
+# RUN: llvm-readobj --sections %t | FileCheck %s --check-prefix=CASE2
+
+# CASE2:      Name: .dynstr
+# CASE2:      Info:
+# CASE2-SAME: 10
+# CASE2:      Name: .dynsym
+# CASE2:      Info:
+# CASE2-SAME: 11
+# CASE2:      Name: .strtab
+# CASE2:      Info:
+# CASE2-SAME: 12
+# CASE2:      Name: .symtab
+# CASE2:      Info:
+# CASE2-SAME: 13
+
+--- !ELF
+FileHeader:
+  Class:   ELFCLASS64
+  Data:    ELFDATA2LSB
+  Type:    ET_DYN
+  Machine: EM_X86_64
+Sections:
+  - Name:  .dynstr
+    Type:  SHT_STRTAB
+    Info:  10
+  - Name:  .dynsym
+    Type:  SHT_DYNSYM
+    Info:  11
+  - Name:  .strtab
+    Type:  SHT_STRTAB
+    Info:  12
+  - Name:  .symtab
+    Type:  SHT_SYMTAB
+    Info:  13
+Symbols:
+  - Name:    local
+  - Name:    global1
+    Binding: STB_GLOBAL
+DynamicSymbols:
+  - Name:    global2
+    Binding: STB_GLOBAL