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Hash tables, dynamic section, i386 PLT, gold_assert.

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This commit is contained in:
Ian Lance Taylor
2006-11-29 17:56:40 +00:00
parent e1da3f5b96
commit a3ad94edd4
33 changed files with 2287 additions and 631 deletions
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72
gold/dynobj.h
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@@ -17,8 +17,71 @@ class Dynobj : public Object
{
public:
Dynobj(const std::string& name, Input_file* input_file, off_t offset = 0)
: Object(name, input_file, true, offset)
: Object(name, input_file, true, offset), soname_()
{ }
// Return the name to use in a DT_NEEDED entry for this object.
const char*
soname() const;
// Create a standard ELF hash table, setting *PPHASH and *PHASHLEN.
// DYNSYMS is the global dynamic symbols. LOCAL_DYNSYM_COUNT is the
// number of local dynamic symbols, which is the index of the first
// dynamic gobal symbol.
static void
create_elf_hash_table(const Target*, const std::vector<Symbol*>& dynsyms,
unsigned int local_dynsym_count,
unsigned char** pphash,
unsigned int* phashlen);
// Create a GNU hash table, setting *PPHASH and *PHASHLEN. DYNSYMS
// is the global dynamic symbols. LOCAL_DYNSYM_COUNT is the number
// of local dynamic symbols, which is the index of the first dynamic
// gobal symbol.
static void
create_gnu_hash_table(const Target*, const std::vector<Symbol*>& dynsyms,
unsigned int local_dynsym_count,
unsigned char** pphash, unsigned int* phashlen);
protected:
// Set the DT_SONAME string.
void
set_soname_string(const char* s)
{ this->soname_.assign(s); }
private:
// Compute the ELF hash code for a string.
static uint32_t
elf_hash(const char*);
// Compute the GNU hash code for a string.
static uint32_t
gnu_hash(const char*);
// Compute the number of hash buckets to use.
static unsigned int
compute_bucket_count(const std::vector<uint32_t>& hashcodes,
bool for_gnu_hash_table);
// Sized version of create_elf_hash_table.
template<bool big_endian>
static void
sized_create_elf_hash_table(const std::vector<uint32_t>& bucket,
const std::vector<uint32_t>& chain,
unsigned char* phash,
unsigned int hashlen);
// Sized version of create_gnu_hash_table.
template<int size, bool big_endian>
static void
sized_create_gnu_hash_table(const std::vector<Symbol*>& hashed_dynsyms,
const std::vector<uint32_t>& dynsym_hashvals,
unsigned int unhashed_dynsym_count,
unsigned char** pphash,
unsigned int* phashlen);
// The DT_SONAME name, if any.
std::string soname_;
};
// A dynamic object, size and endian specific version.
@@ -58,6 +121,11 @@ class Sized_dynobj : public Dynobj
do_section_contents(unsigned int shndx)
{ return this->elf_file_.section_contents(shndx); }
// Return section flags.
uint64_t
do_section_flags(unsigned int shndx)
{ return this->elf_file_.section_flags(shndx); }
private:
// For convenience.
typedef Sized_dynobj<size, big_endian> This;
@@ -104,8 +172,6 @@ class Sized_dynobj : public Dynobj
// General access to the ELF file.
elfcpp::Elf_file<size, big_endian, Object> elf_file_;
// The DT_SONAME name, if any.
std::string soname_;
};
} // End namespace gold.