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/* 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");
}
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