| /* Common VxWorks target definitions for GNU compiler. |
| Copyright (C) 2007 |
| Free Software Foundation, Inc. |
| Contributed by CodeSourcery, Inc. |
| |
| This file is part of GCC. |
| |
| GCC is free software; you can redistribute it and/or modify it under |
| the terms of the GNU General Public License as published by the Free |
| Software Foundation; either version 3, or (at your option) any later |
| version. |
| |
| GCC is distributed in the hope that it will be useful, but WITHOUT ANY |
| WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with GCC; see the file COPYING3. If not see |
| <http://www.gnu.org/licenses/>. */ |
| |
| #include "config.h" |
| #include "system.h" |
| #include "coretypes.h" |
| #include "target.h" |
| #include "toplev.h" |
| #include "output.h" |
| #include "tm.h" |
| |
| /* Like default_named_section_asm_out_constructor, except that even |
| constructors with DEFAULT_INIT_PRIORITY must go in a numbered |
| section on VxWorks. The VxWorks runtime uses a clever trick to get |
| the sentinel entry (-1) inserted at the beginning of the .ctors |
| segment. This trick will not work if we ever generate any entries |
| in plain .ctors sections; we must always use .ctors.PRIORITY. */ |
| |
| void |
| vxworks_asm_out_constructor (rtx symbol, int priority) |
| { |
| section *sec; |
| |
| sec = get_cdtor_priority_section (priority, |
| /*constructor_p=*/true); |
| assemble_addr_to_section (symbol, sec); |
| } |
| |
| /* See comment for vxworks_asm_out_constructor. */ |
| |
| void |
| vxworks_asm_out_destructor (rtx symbol, int priority) |
| { |
| section *sec; |
| |
| sec = get_cdtor_priority_section (priority, |
| /*constructor_p=*/false); |
| assemble_addr_to_section (symbol, sec); |
| } |
| |
| /* Do VxWorks-specific parts of OVERRIDE_OPTIONS. */ |
| |
| void |
| vxworks_override_options (void) |
| { |
| /* We can use .ctors/.dtors sections only in RTP mode. */ |
| targetm.have_ctors_dtors = TARGET_VXWORKS_RTP; |
| |
| /* PIC is only supported for RTPs. */ |
| if (flag_pic && !TARGET_VXWORKS_RTP) |
| error ("PIC is only supported for RTPs"); |
| } |