It is a follow-up for D70826 and it is similar to D70810.
SHT_GNU_verneed contains the following fields:
`vn_version`: Version of structure. This value is currently set to 1, and will be reset
if the versioning implementation is incompatibly altered.
(https://refspecs.linuxfoundation.org/LSB_5.0.0/LSB-Core-generic/LSB-Core-generic/symversion.html)
We should check it for correctness.
Differential revision: https://reviews.llvm.org/D70842
Content: "0100010001000000110000000000000000000000"
DynamicSymbols:
- Name: foo
+
+## Check how we handle the case when a dependency definition entry has an unsupported version.
+
+# RUN: yaml2obj %s --docnum=12 -o %t12
+# RUN: llvm-readobj -V %t12 2>&1 | FileCheck %s --check-prefix=UNSUPPORTED-VERSION -DFILE=%t12
+# RUN: llvm-readelf -V %t12 2>&1 | FileCheck %s --check-prefix=UNSUPPORTED-VERSION -DFILE=%t12
+
+# UNSUPPORTED-VERSION: warning: '[[FILE]]': unable to dump SHT_GNU_verneed section with index 1: version 65278 is not yet supported
+
+--- !ELF
+FileHeader:
+ Class: ELFCLASS64
+ Data: ELFDATA2LSB
+ Type: ET_EXEC
+ Machine: EM_X86_64
+Sections:
+ - Name: .gnu.version_r
+ Type: SHT_GNU_verneed
+ Flags: [ SHF_ALLOC ]
+ Info: 1
+ Link: .dynstr
+ Dependencies:
+ - Version: 0xfefe
+ File: foo
+ Entries:
+ - Name: 'foo'
+ Hash: 0
+ Flags: 0
+ Other: 0
+DynamicSymbols:
+ - Name: foo
": found a misaligned version dependency entry at offset 0x" +
Twine::utohexstr(VerneedBuf - Start));
+ unsigned Version = *reinterpret_cast<const Elf_Half *>(VerneedBuf);
+ if (Version != 1)
+ return createError("unable to dump SHT_GNU_verneed section with index " +
+ Twine(SecNdx) + ": version " + Twine(Version) +
+ " is not yet supported");
+
const Elf_Verneed *Verneed =
reinterpret_cast<const Elf_Verneed *>(VerneedBuf);