elf: add support for ELF relocation entries
git-svn-id: https://llvm.org/svn/llvm-project/llvdb/trunk@128548 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/source/Plugins/ObjectFile/ELF/ELFHeader.cpp b/source/Plugins/ObjectFile/ELF/ELFHeader.cpp
index 3fd795b..bfff9f3 100644
--- a/source/Plugins/ObjectFile/ELF/ELFHeader.cpp
+++ b/source/Plugins/ObjectFile/ELF/ELFHeader.cpp
@@ -153,6 +153,33 @@
return address_size;
}
+unsigned
+ELFHeader::GetRelocationJumpSlotType() const
+{
+ unsigned slot = 0;
+
+ switch (e_machine)
+ {
+ default:
+ assert(false && "architecture not supported");
+ break;
+ case EM_386:
+ case EM_486:
+ slot = R_386_JUMP_SLOT;
+ break;
+ case EM_X86_64:
+ slot = R_X86_64_JUMP_SLOT;
+ break;
+ case EM_ARM:
+ slot = R_ARM_JUMP_SLOT;
+ break;
+ case EM_MBLAZE:
+ slot = R_MICROBLAZE_JUMP_SLOT;
+ }
+
+ return slot;
+}
+
//------------------------------------------------------------------------------
// ELFSectionHeader
@@ -293,10 +320,54 @@
}
bool
-ELFDynamic::Parse(const lldb_private::DataExtractor &data, uint32_t *offset)
+ELFDynamic::Parse(const lldb_private::DataExtractor &data, uint32_t *offset)
{
const unsigned byte_size = data.GetAddressByteSize();
return GetMaxS64(data, offset, &d_tag, byte_size, 2);
}
+//------------------------------------------------------------------------------
+// ELFRel
+
+ELFRel::ELFRel()
+{
+ memset(this, 0, sizeof(ELFRel));
+}
+
+bool
+ELFRel::Parse(const lldb_private::DataExtractor &data, uint32_t *offset)
+{
+ const unsigned byte_size = data.GetAddressByteSize();
+
+ // Read r_offset and r_info.
+ if (GetMaxU64(data, offset, &r_offset, byte_size, 2) == false)
+ return false;
+
+ return true;
+}
+
+//------------------------------------------------------------------------------
+// ELFRela
+
+ELFRela::ELFRela()
+{
+ memset(this, 0, sizeof(ELFRela));
+}
+
+bool
+ELFRela::Parse(const lldb_private::DataExtractor &data, uint32_t *offset)
+{
+ const unsigned byte_size = data.GetAddressByteSize();
+
+ // Read r_offset and r_info.
+ if (GetMaxU64(data, offset, &r_offset, byte_size, 2) == false)
+ return false;
+
+ // Read r_addend;
+ if (GetMaxS64(data, offset, &r_addend, byte_size) == false)
+ return false;
+
+ return true;
+}
+