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Track sections for expressions.

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This commit is contained in:
Ian Lance Taylor
2008-02-09 01:22:17 +00:00
parent 333eff6027
commit 77e655378d
7 changed files with 517 additions and 320 deletions
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49
gold/symtab.cc
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@@ -298,20 +298,57 @@ Symbol::final_value_is_known() const
return parameters->doing_static_link();
}
// Return whether the symbol has an absolute value.
// Return the output section where this symbol is defined.
bool
Symbol::value_is_absolute() const
Output_section*
Symbol::output_section() const
{
switch (this->source_)
{
case FROM_OBJECT:
return this->u_.from_object.shndx == elfcpp::SHN_ABS;
{
unsigned int shndx = this->u_.from_object.shndx;
if (shndx != elfcpp::SHN_UNDEF && shndx < elfcpp::SHN_LORESERVE)
{
gold_assert(!this->u_.from_object.object->is_dynamic());
Relobj* relobj = static_cast<Relobj*>(this->u_.from_object.object);
section_offset_type dummy;
return relobj->output_section(shndx, &dummy);
}
return NULL;
}
case IN_OUTPUT_DATA:
return this->u_.in_output_data.output_data->output_section();
case IN_OUTPUT_SEGMENT:
return false;
case CONSTANT:
return true;
return NULL;
default:
gold_unreachable();
}
}
// Set the symbol's output section. This is used for symbols defined
// in scripts. This should only be called after the symbol table has
// been finalized.
void
Symbol::set_output_section(Output_section* os)
{
switch (this->source_)
{
case FROM_OBJECT:
case IN_OUTPUT_DATA:
gold_assert(this->output_section() == os);
break;
case CONSTANT:
this->source_ = IN_OUTPUT_DATA;
this->u_.in_output_data.output_data = os;
this->u_.in_output_data.offset_is_from_end = false;
break;
case IN_OUTPUT_SEGMENT:
default:
gold_unreachable();
}