| 1 | // target-select.cc -- select a target for an object file |
| 2 | |
| 3 | #include "gold.h" |
| 4 | |
| 5 | #include "elfcpp.h" |
| 6 | #include "target-select.h" |
| 7 | |
| 8 | namespace |
| 9 | { |
| 10 | |
| 11 | // The start of the list of target selectors. |
| 12 | |
| 13 | gold::Target_selector* target_selectors; |
| 14 | |
| 15 | } // End anonymous namespace. |
| 16 | |
| 17 | namespace gold |
| 18 | { |
| 19 | |
| 20 | // Construct a Target_selector, which means adding it to the linked |
| 21 | // list. This runs at global constructor time, so we want it to be |
| 22 | // fast. |
| 23 | |
| 24 | Target_selector::Target_selector(int machine, int size, bool big_endian) |
| 25 | : machine_(machine), size_(size), big_endian_(big_endian) |
| 26 | { |
| 27 | this->next_ = target_selectors; |
| 28 | target_selectors = this; |
| 29 | } |
| 30 | |
| 31 | // Find the target for an ELF file. |
| 32 | |
| 33 | extern Target* |
| 34 | select_target(int machine, int size, bool big_endian, int osabi, |
| 35 | int abiversion) |
| 36 | { |
| 37 | for (Target_selector* p = target_selectors; p != NULL; p = p->next()) |
| 38 | { |
| 39 | int pmach = p->machine(); |
| 40 | if ((pmach == machine || pmach == elfcpp::EM_NONE) |
| 41 | && p->size() == size |
| 42 | && p->big_endian() ? big_endian : !big_endian) |
| 43 | { |
| 44 | Target* ret = p->recognize(machine, osabi, abiversion); |
| 45 | if (ret != NULL) |
| 46 | return ret; |
| 47 | } |
| 48 | } |
| 49 | return NULL; |
| 50 | } |
| 51 | |
| 52 | } // End namespace gold. |