Add support for reading ARM ELF build attributes.

Build attribute sections can now be read if they exist via ELFObjectFile, and
the llvm-readobj tool has been extended with an option to dump this information
if requested. Regression tests are also included which exercise these features.

Also update the docs with a fixed ARM ABI link and a new link to the Addenda
which provides the build attributes specification.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181009 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 6 insertions, 0 deletions

diff --git a/tools/llvm-readobj/llvm-readobj.cpp b/tools/llvm-readobj/llvm-readobj.cpp
index 2e95b6b5518..d5eb85429c2 100644
--- a/tools/llvm-readobj/llvm-readobj.cpp
+++ b/tools/llvm-readobj/llvm-readobj.cpp
@@ -128,6 +128,10 @@ namespace opts {
   // -expand-relocs
   cl::opt<bool> ExpandRelocs("expand-relocs",
     cl::desc("Expand each shown relocation to multiple lines"));
+
+  // -arm-buildattrs
+  cl::opt<bool> ArmBuildAttrs("arm-buildattrs",
+    cl::desc("Display ARM ELF build attributes"));
 } // namespace opts
 
 namespace llvm {
@@ -221,6 +225,8 @@ static void dumpObject(const ObjectFile *Obj) {
     Dumper->printNeededLibraries();
   if (opts::ProgramHeaders)
     Dumper->printProgramHeaders();
+  if (opts::ArmBuildAttrs)
+    Dumper->printARMBuildAttributes();
 }