pa-pro.h

来自「GCC编译器源代码」· C头文件 代码 · 共 79 行

/* Definitions of target machine for GNU compiler, for PRO.
   Copyright (C) 1994, 1995, 1996 Free Software Foundation, Inc.

This file is part of GNU CC.

GNU CC 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 2, or (at your option)
any later version.

GNU CC 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 GNU CC; see the file COPYING.  If not, write to
the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */

/* Global constructor and destructor support.  */
/* Define the pseudo-ops used to switch to the .ctors and .dtors sections.
 
   Note that we want to give these sections the SHF_WRITE attribute
   because these sections will actually contain data (i.e. tables of
   addresses of functions in the current root executable or shared library
   file) and, in the case of a shared library, the relocatable addresses
   will have to be properly resolved/relocated (and then written into) by
   the dynamic linker when it actually attaches the given shared library
   to the executing process.  */
 
#define CTORS_SECTION_ASM_OP    "\t.section\t\".ctors\",#alloc,#write"
#define DTORS_SECTION_ASM_OP    "\t.section\t\".dtors\",#alloc,#write"

#define CTORS_SECTION_FUNCTION						\
void									\
ctors_section ()							\
{									\
  if (in_section != in_ctors)						\
    {									\
      fprintf (asm_out_file, "%s\n", CTORS_SECTION_ASM_OP);		\
      in_section = in_ctors;						\
    }									\
}

#define DTORS_SECTION_FUNCTION						\
void									\
dtors_section ()							\
{									\
  if (in_section != in_dtors)						\
    {									\
      fprintf (asm_out_file, "%s\n", DTORS_SECTION_ASM_OP);		\
      in_section = in_dtors;						\
    }									\
}


/* A C statement (sans semicolon) to output an element in the table of
   global destructors.  */
#define ASM_OUTPUT_DESTRUCTOR(FILE,NAME)       				\
  do {									\
    dtors_section ();                   				\
    fputs ("\t.word\t ", FILE);				\
    assemble_name (FILE, NAME);              				\
    fputs ("\n", FILE);						\
  } while (0)

/* A C statement (sans semicolon) to output an element in the table of
   global constructors.  */
#define ASM_OUTPUT_CONSTRUCTOR(FILE,NAME)				\
  do {									\
    ctors_section ();							\
    fputs ("\t.word\t ", FILE);				\
    assemble_name (FILE, NAME);						\
    fputs ("\n", FILE);						\
  } while (0)

/* JUMP_IN_DELAY + PORTABLE_RUNTIME + GAS + NO_SPACE_REGS + SOFT_FLOAT */
#define TARGET_DEFAULT (4 + 8 + 64 + 128 + 256)