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From Craig Silverstein: Add support for compressing .debug_str section.

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This commit is contained in:
Ian Lance Taylor
2007-11-30 00:35:27 +00:00
parent 71195202df
commit 9a0910c33e
20 changed files with 1666 additions and 444 deletions
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46
gold/stringpool.cc
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@@ -41,12 +41,21 @@ Stringpool_template<Stringpool_char>::Stringpool_template()
}
template<typename Stringpool_char>
Stringpool_template<Stringpool_char>::~Stringpool_template()
void
Stringpool_template<Stringpool_char>::clear()
{
for (typename std::list<Stringdata*>::iterator p = this->strings_.begin();
p != this->strings_.end();
++p)
delete[] reinterpret_cast<char*>(*p);
this->strings_.clear();
this->string_set_.clear();
}
template<typename Stringpool_char>
Stringpool_template<Stringpool_char>::~Stringpool_template()
{
this->clear();
}
// Return the length of a string of arbitrary character type.
@@ -413,6 +422,28 @@ Stringpool_template<Stringpool_char>::get_offset(const Stringpool_char* s)
gold_unreachable();
}
// Write the ELF strtab into the buffer.
template<typename Stringpool_char>
void
Stringpool_template<Stringpool_char>::write_to_buffer(char* buffer,
size_t bufsize)
{
gold_assert(this->strtab_size_ != 0);
if (bufsize < this->strtab_size_) // Quiet the compiler in opt mode.
gold_assert(bufsize >= this->strtab_size_);
if (this->zero_null_)
buffer[0] = '\0';
for (typename String_set_type::const_iterator p = this->string_set_.begin();
p != this->string_set_.end();
++p)
{
const int len = (string_length(p->first) + 1) * sizeof(Stringpool_char);
gold_assert(p->second.second + len <= this->strtab_size_);
memcpy(buffer + p->second.second, p->first, len);
}
}
// Write the ELF strtab into the output file at the specified offset.
template<typename Stringpool_char>
@@ -420,16 +451,9 @@ void
Stringpool_template<Stringpool_char>::write(Output_file* of, off_t offset)
{
gold_assert(this->strtab_size_ != 0);
unsigned char* viewu = of->get_output_view(offset, this->strtab_size_);
char* view = reinterpret_cast<char*>(viewu);
if (this->zero_null_)
view[0] = '\0';
for (typename String_set_type::const_iterator p = this->string_set_.begin();
p != this->string_set_.end();
++p)
memcpy(view + p->second.second, p->first,
(string_length(p->first) + 1) * sizeof(Stringpool_char));
of->write_output_view(offset, this->strtab_size_, viewu);
unsigned char* view = of->get_output_view(offset, this->strtab_size_);
this->write_to_buffer(reinterpret_cast<char*>(view), this->strtab_size_);
of->write_output_view(offset, this->strtab_size_, view);
}
// Instantiate the templates we need.