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Fix group signature handling for relocatable link, add bootstrap

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relocatable test.
This commit is contained in:
Ian Lance Taylor 2008-02-06 19:32:32 +00:00
parent 06b1d59cd6
commit 755ab8af10
7 changed files with 204 additions and 37 deletions
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50
gold/layout.cc
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@ -73,7 +73,7 @@ Layout::Layout(const General_options& options, Script_options* script_options)
unattached_section_list_(), special_output_list_(),
section_headers_(NULL), tls_segment_(NULL), symtab_section_(NULL),
dynsym_section_(NULL), dynamic_section_(NULL), dynamic_data_(NULL),
eh_frame_section_(NULL), output_file_size_(-1),
eh_frame_section_(NULL), group_signatures_(), output_file_size_(-1),
input_requires_executable_stack_(false),
input_with_gnu_stack_note_(false),
input_without_gnu_stack_note_(false),
@ -433,16 +433,19 @@ Layout::layout_group(Symbol_table* symtab,
shdr.get_sh_flags());
// We need to find a symbol with the signature in the symbol table.
// This is a hack to force that to happen.
// If we don't find one now, we need to look again later.
Symbol* sym = symtab->lookup(signature, NULL);
if (sym == NULL)
sym = symtab->define_as_constant(signature, NULL, 0, 0,
elfcpp::STT_NOTYPE,
elfcpp::STB_WEAK,
elfcpp::STV_HIDDEN, 0, false);
if (sym != NULL)
os->set_info_symndx(sym);
else
{
// We will wind up using a symbol whose name is the signature.
// So just put the signature in the symbol name pool to save it.
signature = symtab->canonicalize_name(signature);
this->group_signatures_.push_back(Group_signature(os, signature));
}
os->set_should_link_to_symtab();
os->set_info_symndx(sym);
os->set_entsize(4);
section_size_type entry_count =
@ -798,6 +801,37 @@ Layout::define_section_symbols(Symbol_table* symtab)
}
}
// Define symbols for group signatures.
void
Layout::define_group_signatures(Symbol_table* symtab)
{
for (Group_signatures::iterator p = this->group_signatures_.begin();
p != this->group_signatures_.end();
++p)
{
Symbol* sym = symtab->lookup(p->signature, NULL);
if (sym != NULL)
p->section->set_info_symndx(sym);
else
{
// Force the name of the group section to the group
// signature, and use the group's section symbol as the
// signature symbol.
if (strcmp(p->section->name(), p->signature) != 0)
{
const char* name = this->namepool_.add(p->signature,
true, NULL);
p->section->set_name(name);
}
p->section->set_needs_symtab_index();
p->section->set_info_section_symndx(p->section);
}
}
this->group_signatures_.clear();
}
// Find the first read-only PT_LOAD segment, creating one if
// necessary.