Add a relocation for R_AARCH64_ABS32 in ObjectFileELF

[lanza]

Summary

.rela.debug_info relocations are being done via
ObjectFileELF::ApplyRelocations for aarch64. Currently, the switch case
that iterates over the relocation type is only implemented for a few
different types and assert(false)es over the rest.

Implement the relocation for R_AARCH64_ABS32 in ApplyRelocations

[sas]

LGTM. This is just an updated version of D49407.

source/Plugins/ObjectFile/ELF/ObjectFileELF.cpp

if (hdr->Is32Bit()) {
           uint64_t *dst = reinterpret_cast<uint64_t *>(
               data_buffer_sp->GetBytes() + rel_section->GetFileOffset() +
               ELFRelocation::RelocOffset64(rel));
           *dst = value + ELFRelocation::RelocAddend64(rel);
         }
         break;
       }
       case R_X86_64_32:
-      case R_X86_64_32S: {
+      case R_X86_64_32S:
+      case R_AARCH64_ABS32: {
         symbol = symtab->FindSymbolByID(reloc_symbol(rel));
         if (symbol) {
           addr_t value = symbol->GetAddressRef().GetFileAddress();
           value += ELFRelocation::RelocAddend32(rel);
-          assert(
-              (reloc_type(rel) == R_X86_64_32 && (value <= UINT32_MAX)) ||
+          if ((reloc_type(rel) == R_X86_64_32 && (value <= UINT32_MAX)) ||
               (reloc_type(rel) == R_X86_64_32S &&
-               ((int64_t)value <= INT32_MAX && (int64_t)value >= INT32_MIN)));
+               ((int64_t)value <= INT32_MAX && (int64_t)value >= INT32_MIN)) ||
+              (reloc_type(rel) == R_AARCH64_ABS32 && (value <= UINT32_MAX))) {
+            Log *log =
+                lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_MODULES);
+            log->Printf("Failed to apply debug info relocations");
+          }
           uint32_t truncated_addr = (value & 0xFFFFFFFF);
           DataBufferSP &data_buffer_sp = debug_data.GetSharedDataBuffer();
           uint32_t *dst = reinterpret_cast<uint32_t *>(
               data_buffer_sp->GetBytes() + rel_section->GetFileOffset() +
               ELFRelocation::RelocOffset32(rel));
           *dst = truncated_addr;
         }
         break;