} u_;
};
+// A GOT offset list. A symbol may have more than one GOT offset
+// (e.g., when mixing modules compiled with two different TLS models),
+// but will usually have at most one. GOT_TYPE identifies the type of
+// GOT entry; its values are specific to each target.
+
+class Got_offset_list
+{
+ public:
+ Got_offset_list()
+ : got_type_(-1U), got_offset_(0), got_next_(NULL)
+ { }
+
+ Got_offset_list(unsigned int got_type, unsigned int got_offset)
+ : got_type_(got_type), got_offset_(got_offset), got_next_(NULL)
+ { }
+
+ ~Got_offset_list()
+ {
+ if (this->got_next_ != NULL)
+ {
+ delete this->got_next_;
+ this->got_next_ = NULL;
+ }
+ }
+
+ // Initialize the fields to their default values.
+ void
+ init()
+ {
+ this->got_type_ = -1U;
+ this->got_offset_ = 0;
+ this->got_next_ = NULL;
+ }
+
+ // Set the offset for the GOT entry of type GOT_TYPE.
+ void
+ set_offset(unsigned int got_type, unsigned int got_offset)
+ {
+ if (this->got_type_ == -1U)
+ {
+ this->got_type_ = got_type;
+ this->got_offset_ = got_offset;
+ }
+ else
+ {
+ for (Got_offset_list* g = this; g != NULL; g = g->got_next_)
+ {
+ if (g->got_type_ == got_type)
+ {
+ g->got_offset_ = got_offset;
+ return;
+ }
+ }
+ Got_offset_list* g = new Got_offset_list(got_type, got_offset);
+ g->got_next_ = this->got_next_;
+ this->got_next_ = g;
+ }
+ }
+
+ // Return the offset for a GOT entry of type GOT_TYPE.
+ unsigned int
+ get_offset(unsigned int got_type) const
+ {
+ for (const Got_offset_list* g = this; g != NULL; g = g->got_next_)
+ {
+ if (g->got_type_ == got_type)
+ return g->got_offset_;
+ }
+ return -1U;
+ }
+
+ private:
+ unsigned int got_type_;
+ unsigned int got_offset_;
+ Got_offset_list* got_next_;
+};
+
// A regular object file. This is size and endian specific.
template<int size, bool big_endian>
// Return whether the local symbol SYMNDX has a GOT offset.
// For TLS symbols, the GOT entry will hold its tp-relative offset.
bool
- local_has_got_offset(unsigned int symndx) const
+ local_has_got_offset(unsigned int symndx, unsigned int got_type) const
{
- return (this->local_got_offsets_.find(symndx)
- != this->local_got_offsets_.end());
+ Local_got_offsets::const_iterator p =
+ this->local_got_offsets_.find(symndx);
+ return (p != this->local_got_offsets_.end()
+ && p->second->get_offset(got_type) != -1U);
}
// Return the GOT offset of the local symbol SYMNDX.
unsigned int
- local_got_offset(unsigned int symndx) const
+ local_got_offset(unsigned int symndx, unsigned int got_type) const
{
Local_got_offsets::const_iterator p =
this->local_got_offsets_.find(symndx);
gold_assert(p != this->local_got_offsets_.end());
- return p->second;
+ unsigned int off = p->second->get_offset(got_type);
+ gold_assert(off != -1U);
+ return off;
}
// Set the GOT offset of the local symbol SYMNDX to GOT_OFFSET.
void
- set_local_got_offset(unsigned int symndx, unsigned int got_offset)
- {
- std::pair<Local_got_offsets::iterator, bool> ins =
- this->local_got_offsets_.insert(std::make_pair(symndx, got_offset));
- gold_assert(ins.second);
- }
-
- // Return whether the local TLS symbol SYMNDX has a GOT offset.
- // The GOT entry at this offset will contain a module index. If
- // NEED_PAIR is true, a second entry immediately following the first
- // will contain the dtv-relative offset.
- bool
- local_has_tls_got_offset(unsigned int symndx, bool need_pair) const
+ set_local_got_offset(unsigned int symndx, unsigned int got_type,
+ unsigned int got_offset)
{
- typename Local_tls_got_offsets::const_iterator p =
- this->local_tls_got_offsets_.find(symndx);
- if (p == this->local_tls_got_offsets_.end()
- || (need_pair && !p->second.have_pair_))
- return false;
- return true;
- }
-
- // Return the offset of the GOT entry for the local TLS symbol SYMNDX.
- // If NEED_PAIR is true, we need the offset of a pair of GOT entries;
- // otherwise we need the offset of the GOT entry for the module index.
- unsigned int
- local_tls_got_offset(unsigned int symndx, bool need_pair) const
- {
- typename Local_tls_got_offsets::const_iterator p =
- this->local_tls_got_offsets_.find(symndx);
- gold_assert(p != this->local_tls_got_offsets_.end());
- gold_assert(!need_pair || p->second.have_pair_);
- return p->second.got_offset_;
- }
-
- // Set the offset of the GOT entry for the local TLS symbol SYMNDX
- // to GOT_OFFSET. If HAVE_PAIR is true, we have a pair of GOT entries;
- // otherwise, we have just a single entry for the module index.
- void
- set_local_tls_got_offset(unsigned int symndx, unsigned int got_offset,
- bool have_pair)
- {
- typename Local_tls_got_offsets::iterator p =
- this->local_tls_got_offsets_.find(symndx);
- if (p != this->local_tls_got_offsets_.end())
- {
- // An entry already existed for this symbol. This can happen
- // if we see a relocation asking for the module index before
- // a relocation asking for the pair. In that case, the original
- // GOT entry will remain, but won't get used by any further
- // relocations.
- p->second.got_offset_ = got_offset;
- gold_assert(have_pair);
- p->second.have_pair_ = true;
- }
+ Local_got_offsets::const_iterator p =
+ this->local_got_offsets_.find(symndx);
+ if (p != this->local_got_offsets_.end())
+ p->second->set_offset(got_type, got_offset);
else
{
- std::pair<typename Local_tls_got_offsets::iterator, bool> ins =
- this->local_tls_got_offsets_.insert(
- std::make_pair(symndx, Tls_got_entry(got_offset, have_pair)));
+ Got_offset_list* g = new Got_offset_list(got_type, got_offset);
+ std::pair<Local_got_offsets::iterator, bool> ins =
+ this->local_got_offsets_.insert(std::make_pair(symndx, g));
gold_assert(ins.second);
}
}
{
this->local_values_.clear();
this->local_got_offsets_.clear();
- this->local_tls_got_offsets_.clear();
}
// The GOT offsets of local symbols. This map also stores GOT offsets
// for tp-relative offsets for TLS symbols.
- typedef Unordered_map<unsigned int, unsigned int> Local_got_offsets;
+ typedef Unordered_map<unsigned int, Got_offset_list*> Local_got_offsets;
// The TLS GOT offsets of local symbols. The map stores the offsets
// for either a single GOT entry that holds the module index of a TLS
// GOT offsets for local non-TLS symbols, and tp-relative offsets
// for TLS symbols, indexed by symbol number.
Local_got_offsets local_got_offsets_;
- // GOT offsets for local TLS symbols, indexed by symbol number
- // and GOT entry type.
- Local_tls_got_offsets local_tls_got_offsets_;
// Whether this object has a GNU style .eh_frame section.
bool has_eh_frame_;
};
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