[llvm-objdump][llvm-readobj] Decode IRELATIVE-style caprelocs permissions

Author: jrtc27

llvm/tools/llvm-objdump/llvm-objdump.cpp

@@ -2151,6 +2151,7 @@ printELFCapRelocations(const ELFObjectFile<ELFT> *Obj) {
                 entry + 4*sizeof(TargetUint));
     const uint64_t Function = UINT64_C(1) << ((sizeof(TargetUint) * 8) - 1);
     const uint64_t Constant = UINT64_C(1) << ((sizeof(TargetUint) * 8) - 2);
+    const uint64_t Indirect = UINT64_C(1) << ((sizeof(TargetUint) * 8) - 3);
     StringRef PermStr;
     switch (Perms) {
     case 0:
@@ -2162,6 +2163,9 @@ printELFCapRelocations(const ELFObjectFile<ELFT> *Obj) {
     case Function:
       PermStr = " (Function)";
       break;
+    case Function | Indirect:
+      PermStr = " (GNU Indirect Function)";
+      break;
     default:
       PermStr = " (Unknown)";
       break;

llvm/tools/llvm-readobj/ELFDumper.cpp

@@ -3441,6 +3441,7 @@ template <class ELFT> void ELFDumper<ELFT>::printCheriCapRelocs() {
                 entry + 4*sizeof(TargetUint));
     const uint64_t Function = UINT64_C(1) << ((sizeof(TargetUint) * 8) - 1);
     const uint64_t Constant = UINT64_C(1) << ((sizeof(TargetUint) * 8) - 2);
+    const uint64_t Indirect = UINT64_C(1) << ((sizeof(TargetUint) * 8) - 3);
     StringRef PermStr;
     switch (Perms) {
     case 0:
@@ -3452,6 +3453,9 @@ template <class ELFT> void ELFDumper<ELFT>::printCheriCapRelocs() {
     case Function:
       PermStr = "Function";
       break;
+    case Function | Indirect:
+      PermStr = "GNU Indirect Function";
+      break;
     default:
       PermStr = "Unknown";
       break;