old-cross-binutils/gold/target-select.cc
Ian Lance Taylor 14bfc3f555 Another snapshot of the current state of the sources. Gets to the
point of symbol resolution and can now issue a multiple definition
error.  Also added target selection infrastructure.
2006-08-18 22:29:20 +00:00

52 lines
1.1 KiB
C++

// target-select.cc -- select a target for an object file
#include "gold.h"
#include "elfcpp.h"
#include "target-select.h"
namespace
{
// The start of the list of target selectors.
gold::Target_selector* target_selectors;
} // End anonymous namespace.
namespace gold
{
// Construct a Target_selector, which means adding it to the linked
// list. This runs at global constructor time, so we want it to be
// fast.
Target_selector::Target_selector(int machine, int size, bool big_endian)
: machine_(machine), size_(size), big_endian_(big_endian)
{
this->next_ = target_selectors;
target_selectors = this;
}
// Find the target for an ELF file.
extern Target*
select_target(int machine, int size, bool big_endian, int osabi,
int abiversion)
{
for (const Target_selector* p = target_selectors; p != NULL; p = p->next())
{
int pmach = p->machine();
if ((pmach == machine || pmach == elfcpp::EM_NONE)
&& p->size() == size
&& p->big_endian() ? big_endian : !big_endian)
{
Target* ret = p->recognize(machine, osabi, abiversion);
if (ret != NULL)
return ret;
}
}
return NULL;
}
} // End namespace gold.