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/* Functions for generic NeXT as target machine for GNU C compiler.
Copyright (C) 1989, 1990, 1991, 1992, 1993, 1996, 1997, 1998,
2000, 2002 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, 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include "config.h"
#include "system.h"
#include "flags.h"
#include "tree.h"
#include "rtl.h"
#include "toplev.h"
#include "output.h"
#include "tm_p.h"
/* Make everything that used to go in the text section really go there. */
int flag_no_mach_text_sections = 0;
#define OPT_STRCMP(opt) (!strncmp (opt, p, sizeof (opt)-1))
/* 1 if handle_pragma has been called yet. */
static int pragma_initialized;
/* Initial setting of `optimize'. */
static int initial_optimize_flag;
/* Called from check_newline via the macro HANDLE_PRAGMA.
FINPUT is the source file input stream.
CH is the first character after `#pragma'.
The result is 1 if the pragma was handled. */
int
handle_pragma (p_getc, p_ungetc, pname)
int (* p_getc) PARAMS ((void)) ATTRIBUTE_UNUSED;
void (* p_ungetc) PARAMS ((int)) ATTRIBUTE_UNUSED;
const char *pname;
{
int retval = 0;
/* Record initial setting of optimize flag, so we can restore it. */
if (!pragma_initialized)
{
pragma_initialized = 1;
initial_optimize_flag = optimize;
}
if (strcmp (pname, "CC_OPT_ON") == 0)
{
optimize = 1;
warning ("optimization turned on");
retval = 1;
}
else if (strcmp (pname, "CC_OPT_OFF") == 0)
{
optimize = 0;
warning ("optimization turned off");
retval = 1;
}
else if (strcmp (pname, "CC_OPT_RESTORE") == 0)
{
extern int initial_optimize_flag;
if (optimize != initial_optimize_flag)
optimize = initial_optimize_flag;
warning ("optimization level restored");
retval = 1;
}
else if (strcmp (pname, "CC_WRITABLE_STRINGS") == 0)
flag_writable_strings = retval = 1;
else if (strcmp (pname, "CC_NON_WRITABLE_STRINGS") == 0)
flag_writable_strings = 0, retval = 1;
else if (strcmp (pname, "CC_NO_MACH_TEXT_SECTIONS") == 0)
flag_no_mach_text_sections = retval = 1;
return retval;
}
void
nextstep_asm_out_constructor (symbol, priority)
rtx symbol;
int priority ATTRIBUTE_UNUSED;
{
constructor_section ();
assemble_align (POINTER_SIZE);
assemble_integer (symbol, POINTER_SIZE / BITS_PER_UNIT, POINTER_SIZE, 1);
fprintf (asm_out_file, ".reference .constructors_used\n");
}
void
nextstep_asm_out_destructor (symbol, priority)
rtx symbol;
int priority ATTRIBUTE_UNUSED;
{
destructor_section ();
assemble_align (POINTER_SIZE);
assemble_integer (symbol, POINTER_SIZE / BITS_PER_UNIT, POINTER_SIZE, 1);
fprintf (asm_out_file, ".reference .destructors_used\n");
}
void
nextstep_select_section (exp, reloc, align)
tree exp;
int reloc;
unsigned HOST_WIDE_INT align ATTRIBUTE_UNUSED;
{
if (TREE_CODE (exp) == STRING_CST)
{
if (flag_writable_strings)
data_section ();
else if (TREE_STRING_LENGTH (exp)
!= strlen (TREE_STRING_POINTER (exp)) + 1)
readonly_data_section ();
else
cstring_section ();
}
else if (TREE_CODE (exp) == INTEGER_CST
|| TREE_CODE (exp) == REAL_CST)
{
tree size = TYPE_SIZE (TREE_TYPE (exp));
HOST_WIDE_INT size_i;
if (TREE_CODE (size) == INTEGER_CST)
size_i = tree_low_cst (size, 1);
else
size_i = 0;
if (size_i == 4)
literal4_section ();
else if (size_i == 8)
literal8_section ();
else
readonly_data_section ();
}
else if (TREE_CODE (exp) == CONSTRUCTOR
&& TREE_TYPE (exp)
&& TREE_CODE (TREE_TYPE (exp)) == RECORD_TYPE
&& TYPE_NAME (TREE_TYPE (exp))
&& TREE_CODE (TYPE_NAME (TREE_TYPE (exp))) == IDENTIFIER_NODE
&& IDENTIFIER_POINTER (TYPE_NAME (TREE_TYPE (exp))))
{
if (!strcmp (IDENTIFIER_POINTER (TYPE_NAME (TREE_TYPE (exp))),
"NXConstantString"))
objc_string_object_section ();
else if ((TREE_READONLY (exp) || TREE_CONSTANT (exp))
&& !TREE_SIDE_EFFECTS (exp))
readonly_data_section ();
else
data_section ();
}
else if (TREE_CODE (exp) == VAR_DECL
&& DECL_NAME (exp)
&& TREE_CODE (DECL_NAME (exp)) == IDENTIFIER_NODE
&& IDENTIFIER_POINTER (DECL_NAME (exp))
&& !strncmp (IDENTIFIER_POINTER (DECL_NAME (exp)), "_OBJC_", 6))
{
const char *name = IDENTIFIER_POINTER (DECL_NAME (exp));
if (!strncmp (name, "_OBJC_CLASS_METHODS_", 20))
objc_cls_meth_section ();
else if (!strncmp (name, "_OBJC_INSTANCE_METHODS_", 23))
objc_inst_meth_section ();
else if (!strncmp (name, "_OBJC_CATEGORY_CLASS_METHODS_", 20))
objc_cat_cls_meth_section ();
else if (!strncmp (name, "_OBJC_CATEGORY_INSTANCE_METHODS_", 23))
objc_cat_inst_meth_section ();
else if (!strncmp (name, "_OBJC_CLASS_VARIABLES_", 22))
objc_class_vars_section ();
else if (!strncmp (name, "_OBJC_INSTANCE_VARIABLES_", 25))
objc_instance_vars_section ();
else if (!strncmp (name, "_OBJC_CLASS_PROTOCOLS_", 22))
objc_cat_cls_meth_section ();
else if (!strncmp (name, "_OBJC_CLASS_NAME_", 17))
objc_class_names_section ();
else if (!strncmp (name, "_OBJC_METH_VAR_NAME_", 20))
objc_meth_var_names_section ();
else if (!strncmp (name, "_OBJC_METH_VAR_TYPE_", 20))
objc_meth_var_types_section ();
else if (!strncmp (name, "_OBJC_CLASS_REFERENCES", 22))
objc_cls_refs_section ();
else if (!strncmp (name, "_OBJC_CLASS_", 12))
objc_class_section ();
else if (!strncmp (name, "_OBJC_METACLASS_", 16))
objc_meta_class_section ();
else if (!strncmp (name, "_OBJC_CATEGORY_", 15))
objc_category_section ();
else if (!strncmp (name, "_OBJC_SELECTOR_REFERENCES", 25))
objc_selector_refs_section ();
else if (!strncmp (name, "_OBJC_SYMBOLS", 13))
objc_symbols_section ();
else if (!strncmp (name, "_OBJC_MODULES", 13))
objc_module_info_section ();
else if (!strncmp (name, "_OBJC_PROTOCOL_INSTANCE_METHODS_", 32))
objc_cat_inst_meth_section ();
else if (!strncmp (name, "_OBJC_PROTOCOL_CLASS_METHODS_", 29))
objc_cat_cls_meth_section ();
else if (!strncmp (name, "_OBJC_PROTOCOL_REFS_", 20))
objc_cat_cls_meth_section ();
else if (!strncmp (name, "_OBJC_PROTOCOL_", 15))
objc_protocol_section ();
else if ((TREE_READONLY (exp) || TREE_CONSTANT (exp))
&& !TREE_SIDE_EFFECTS (exp))
readonly_data_section ();
else
data_section ();
}
else if (TREE_CODE (exp) == VAR_DECL)
{
if ((flag_pic && reloc)
|| !TREE_READONLY (exp) || TREE_SIDE_EFFECTS (exp)
|| !DECL_INITIAL (exp)
|| (DECL_INITIAL (exp) != error_mark_node
&& !TREE_CONSTANT (DECL_INITIAL (exp))))
data_section ();
else
readonly_data_section ();
}
else
readonly_data_section ();
}
void
nextstep_select_rtx_section (mode, x, align)
enum machine_mode mode;
rtx x;
unsigned HOST_WIDE_INT align ATTRIBUTE_UNUSED;
{
if (GET_MODE_SIZE (mode) == 8)
literal8_section ();
else if (GET_MODE_SIZE (mode) == 4
&& (GET_CODE (x) == CONST_INT
|| GET_CODE (x) == CONST_DOUBLE))
literal4_section ();
else
const_section ();
}
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