diff options
Diffstat (limited to 'Source/cmELF.cxx')
| -rw-r--r-- | Source/cmELF.cxx | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/Source/cmELF.cxx b/Source/cmELF.cxx index a6440ed..5abc62a 100644 --- a/Source/cmELF.cxx +++ b/Source/cmELF.cxx @@ -98,9 +98,18 @@ public: // Forward to the per-class implementation. virtual unsigned int GetNumberOfSections() const = 0; + virtual unsigned int GetDynamicEntryCount() = 0; + virtual unsigned long GetDynamicEntryPosition(int j) = 0; virtual StringEntry const* GetDynamicSectionString(int tag) = 0; virtual void PrintInfo(std::ostream& os) const = 0; + bool ReadBytes(unsigned long pos, unsigned long size, char* buf) + { + this->Stream.seekg(pos); + this->Stream.read(buf, size); + return this->Stream?true:false; + } + // Lookup the SONAME in the DYNAMIC section. StringEntry const* GetSOName() { @@ -201,6 +210,10 @@ public: return static_cast<unsigned int>(this->ELFHeader.e_shnum); } + // Get the file position and size of a dynamic section entry. + virtual unsigned int GetDynamicEntryCount(); + virtual unsigned long GetDynamicEntryPosition(int j); + // Lookup a string from the dynamic section with the given tag. virtual StringEntry const* GetDynamicSectionString(int tag); @@ -552,6 +565,40 @@ bool cmELFInternalImpl<Types>::LoadDynamicSection() //---------------------------------------------------------------------------- template <class Types> +unsigned int cmELFInternalImpl<Types>::GetDynamicEntryCount() +{ + if(!this->LoadDynamicSection()) + { + return 0; + } + for(unsigned int i = 0; i < this->DynamicSectionEntries.size(); ++i) + { + if(this->DynamicSectionEntries[i].d_tag == DT_NULL) + { + return i; + } + } + return this->DynamicSectionEntries.size(); +} + +//---------------------------------------------------------------------------- +template <class Types> +unsigned long cmELFInternalImpl<Types>::GetDynamicEntryPosition(int j) +{ + if(!this->LoadDynamicSection()) + { + return 0; + } + if(j < 0 || j >= this->DynamicSectionEntries.size()) + { + return 0; + } + ELF_Shdr const& sec = this->SectionHeaders[this->DynamicSectionIndex]; + return sec.sh_offset + sec.sh_entsize*j; +} + +//---------------------------------------------------------------------------- +template <class Types> cmELF::StringEntry const* cmELFInternalImpl<Types>::GetDynamicSectionString(int tag) { @@ -571,6 +618,7 @@ cmELFInternalImpl<Types>::GetDynamicSectionString(int tag) StringEntry& se = this->DynamicSectionStrings[tag]; se.Position = 0; se.Size = 0; + se.IndexInSection = -1; // Try reading the dynamic section. if(!this->LoadDynamicSection()) @@ -641,6 +689,7 @@ cmELFInternalImpl<Types>::GetDynamicSectionString(int tag) // The value has been read successfully. Report it. se.Position = static_cast<unsigned long>(strtab.sh_offset + first); se.Size = last - first; + se.IndexInSection = di - this->DynamicSectionEntries.begin(); return &se; } } @@ -762,6 +811,45 @@ unsigned int cmELF::GetNumberOfSections() const } //---------------------------------------------------------------------------- +unsigned int cmELF::GetDynamicEntryCount() const +{ + if(this->Valid()) + { + return this->Internal->GetDynamicEntryCount(); + } + else + { + return 0; + } +} + +//---------------------------------------------------------------------------- +unsigned long cmELF::GetDynamicEntryPosition(int index) const +{ + if(this->Valid()) + { + return this->Internal->GetDynamicEntryPosition(index); + } + else + { + return 0; + } +} + +//---------------------------------------------------------------------------- +bool cmELF::ReadBytes(unsigned long pos, unsigned long size, char* buf) const +{ + if(this->Valid()) + { + return this->Internal->ReadBytes(pos, size, buf); + } + else + { + return false; + } +} + +//---------------------------------------------------------------------------- bool cmELF::GetSOName(std::string& soname) { if(StringEntry const* se = this->GetSOName()) |