Adds methods to ObjectFileELF to access data in ELF segments
in preparation to add support for ELF core files.
Patch by Samuel Jacob!
llvm-svn: 186114
diff --git a/lldb/source/Plugins/ObjectFile/ELF/ObjectFileELF.cpp b/lldb/source/Plugins/ObjectFile/ELF/ObjectFileELF.cpp
index fde83fb..251b8f9 100644
--- a/lldb/source/Plugins/ObjectFile/ELF/ObjectFileELF.cpp
+++ b/lldb/source/Plugins/ObjectFile/ELF/ObjectFileELF.cpp
@@ -801,6 +801,33 @@
return 0;
}
+size_t
+ObjectFileELF::GetProgramHeaderCount()
+{
+ return ParseProgramHeaders();
+}
+
+const elf::ELFProgramHeader *
+ObjectFileELF::GetProgramHeaderByIndex(lldb::user_id_t id)
+{
+ if (!id || !ParseProgramHeaders())
+ return NULL;
+
+ if (--id < m_program_headers.size())
+ return &m_program_headers[id];
+
+ return NULL;
+}
+
+DataExtractor
+ObjectFileELF::GetSegmentDataByIndex(lldb::user_id_t id)
+{
+ const elf::ELFProgramHeader *segment_header = GetProgramHeaderByIndex(id);
+ if (segment_header == NULL)
+ return DataExtractor();
+ return DataExtractor(m_data, segment_header->p_offset, segment_header->p_filesz);
+}
+
//----------------------------------------------------------------------
// ParseSectionHeaders
//----------------------------------------------------------------------
@@ -813,7 +840,7 @@
const ObjectFileELF::ELFSectionHeaderInfo *
ObjectFileELF::GetSectionHeaderByIndex(lldb::user_id_t id)
{
- if (!ParseSectionHeaders() || !id)
+ if (!id || !ParseSectionHeaders())
return NULL;
if (--id < m_section_headers.size())
diff --git a/lldb/source/Plugins/ObjectFile/ELF/ObjectFileELF.h b/lldb/source/Plugins/ObjectFile/ELF/ObjectFileELF.h
index e186fc3..2365101 100644
--- a/lldb/source/Plugins/ObjectFile/ELF/ObjectFileELF.h
+++ b/lldb/source/Plugins/ObjectFile/ELF/ObjectFileELF.h
@@ -135,6 +135,18 @@
virtual ObjectFile::Strata
CalculateStrata();
+ // Returns number of program headers found in the ELF file.
+ size_t
+ GetProgramHeaderCount();
+
+ // Returns the program header with the given index.
+ const elf::ELFProgramHeader *
+ GetProgramHeaderByIndex(lldb::user_id_t id);
+
+ // Returns segment data for the given index.
+ lldb_private::DataExtractor
+ GetSegmentDataByIndex(lldb::user_id_t id);
+
private:
ObjectFileELF(const lldb::ModuleSP &module_sp,
lldb::DataBufferSP& data_sp,