576 lines
21 KiB
C
576 lines
21 KiB
C
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/* Target definitions for GNU compiler for Intel 80386 running Interix
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Parts Copyright (C) 1991, 1999 Free Software Foundation, Inc.
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Parts:
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by Douglas B. Rupp (drupp@cs.washington.edu).
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by Ron Guilmette (rfg@netcom.com).
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by Donn Terry (donn@softway.com).
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by Mumit Khan (khan@xraylith.wisc.edu).
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This file is part of GNU CC.
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GNU CC is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU CC is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU CC; see the file COPYING. If not, write to
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the Free Software Foundation, 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#define YES_UNDERSCORES
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/* YES_UNDERSCORES must preceed gas.h */
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#include <i386/gas.h>
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/* The rest must follow. */
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#define DBX_DEBUGGING_INFO
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#define SDB_DEBUGGING_INFO
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#define PREFERRED_DEBUGGING_TYPE DBX_DEBUG
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#define HANDLE_SYSV_PRAGMA
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#undef HANDLE_PRAGMA_WEAK /* until the link format can handle it */
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/* By default, target has a 80387, uses IEEE compatible arithmetic,
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and returns float values in the 387 and needs stack probes
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We also align doubles to 64-bits for MSVC default compatability */
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#undef TARGET_DEFAULT
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#define TARGET_DEFAULT \
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(MASK_80387 | MASK_IEEE_FP | MASK_FLOAT_RETURNS | MASK_STACK_PROBE | \
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MASK_ALIGN_DOUBLE)
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#undef TARGET_CPU_DEFAULT
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#define TARGET_CPU_DEFAULT 2 /* 486 */
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#define WCHAR_UNSIGNED 1
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#define WCHAR_TYPE_SIZE 16
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#define WCHAR_TYPE "short unsigned int"
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/* WinNT (and thus Interix) use unsigned int */
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#define SIZE_TYPE "unsigned int"
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#define ASM_LOAD_ADDR(loc, reg) " leal " #loc "," #reg "\n"
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/* For the sake of libgcc2.c, indicate target supports atexit. */
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#define HAVE_ATEXIT
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/* cpp handles __STDC__ */
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#undef CPP_PREDEFINES
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#define CPP_PREDEFINES " \
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-D__INTERIX \
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-D__OPENNT \
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-D_M_IX86=300 -D_X86_=1 \
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-D__stdcall=__attribute__((__stdcall__)) \
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-D__cdecl=__attribute__((__cdecl__)) \
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-Asystem(unix) -Asystem(interix) -Asystem(interix) -Acpu(i386) -Amachine(i386)"
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#undef CPP_SPEC
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/* Write out the correct language type definition for the header files.
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Unless we have assembler language, write out the symbols for C.
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cpp_cpu is an Intel specific variant. See i386.h
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mieee is an Alpha specific variant. Cross polination a bad idea.
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*/
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#define CPP_SPEC "\
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%{!.S: -D__LANGUAGE_C__ -D__LANGUAGE_C %{!ansi:-DLANGUAGE_C}} \
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%{.S: -D__LANGUAGE_ASSEMBLY__ -D__LANGUAGE_ASSEMBLY %{!ansi:-DLANGUAGE_ASSEMBLY}} \
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%{.cc: -D__LANGUAGE_C_PLUS_PLUS__ -D__LANGUAGE_C_PLUS_PLUS -D__cplusplus} \
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%{.cxx: -D__LANGUAGE_C_PLUS_PLUS__ -D__LANGUAGE_C_PLUS_PLUS -D__cplusplus} \
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%{.C: -D__LANGUAGE_C_PLUS_PLUS__ -D__LANGUAGE_C_PLUS_PLUS -D__cplusplus} \
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%{.m: -D__LANGUAGE_OBJECTIVE_C__ -D__LANGUAGE_OBJECTIVE_C} \
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-remap \
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%(cpp_cpu) \
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%{posix:-D_POSIX_SOURCE} \
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-idirafter %$INTERIX_ROOT/usr/include"
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#undef TARGET_VERSION
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#define TARGET_VERSION fprintf (stderr, " (i386 Interix)");
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/* The global __fltused is necessary to cause the printf/scanf routines
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for outputting/inputting floating point numbers to be loaded. Since this
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is kind of hard to detect, we just do it all the time. */
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#ifdef ASM_FILE_START
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#undef ASM_FILE_START
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#endif
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#define ASM_FILE_START(FILE) \
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do { fprintf (FILE, "\t.file\t"); \
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output_quoted_string (FILE, dump_base_name); \
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fprintf (FILE, "\n"); \
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fprintf (FILE, ".global\t__fltused\n"); \
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} while (0)
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/* A table of bytes codes used by the ASM_OUTPUT_ASCII and
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ASM_OUTPUT_LIMITED_STRING macros. Each byte in the table
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corresponds to a particular byte value [0..255]. For any
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given byte value, if the value in the corresponding table
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position is zero, the given character can be output directly.
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If the table value is 1, the byte must be output as a \ooo
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octal escape. If the tables value is anything else, then the
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byte value should be output as a \ followed by the value
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in the table. Note that we can use standard UN*X escape
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sequences for many control characters, but we don't use
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\a to represent BEL because some svr4 assemblers (e.g. on
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the i386) don't know about that. Also, we don't use \v
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since some versions of gas, such as 2.2 did not accept it. */
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#define ESCAPES \
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"\1\1\1\1\1\1\1\1btn\1fr\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\
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\0\0\"\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\
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\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\\\0\0\0\
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\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\1\
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\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\
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\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\
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\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\
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\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1"
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/* Some svr4 assemblers have a limit on the number of characters which
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can appear in the operand of a .string directive. If your assembler
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has such a limitation, you should define STRING_LIMIT to reflect that
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limit. Note that at least some svr4 assemblers have a limit on the
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actual number of bytes in the double-quoted string, and that they
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count each character in an escape sequence as one byte. Thus, an
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escape sequence like \377 would count as four bytes.
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If your target assembler doesn't support the .string directive, you
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should define this to zero.
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*/
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#define STRING_LIMIT ((unsigned) 256)
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#define STRING_ASM_OP ".string"
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/* The routine used to output NUL terminated strings. We use a special
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version of this for most svr4 targets because doing so makes the
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generated assembly code more compact (and thus faster to assemble)
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as well as more readable, especially for targets like the i386
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(where the only alternative is to output character sequences as
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comma separated lists of numbers). */
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#define ASM_OUTPUT_LIMITED_STRING(FILE, STR) \
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do \
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{ \
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register unsigned char *_limited_str = (unsigned char *) (STR); \
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register unsigned ch; \
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fprintf ((FILE), "\t%s\t\"", STRING_ASM_OP); \
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for (; (ch = *_limited_str); _limited_str++) \
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{ \
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register int escape = ESCAPES[ch]; \
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switch (escape) \
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{ \
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case 0: \
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putc (ch, (FILE)); \
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break; \
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case 1: \
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fprintf ((FILE), "\\%03o", ch); \
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break; \
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default: \
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putc ('\\', (FILE)); \
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putc (escape, (FILE)); \
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break; \
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} \
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} \
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fprintf ((FILE), "\"\n"); \
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} \
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while (0)
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/* The routine used to output sequences of byte values. We use a special
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version of this for most svr4 targets because doing so makes the
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generated assembly code more compact (and thus faster to assemble)
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as well as more readable. Note that if we find subparts of the
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character sequence which end with NUL (and which are shorter than
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STRING_LIMIT) we output those using ASM_OUTPUT_LIMITED_STRING. */
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#undef ASM_OUTPUT_ASCII
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#define ASM_OUTPUT_ASCII(FILE, STR, LENGTH) \
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do \
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{ \
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register unsigned char *_ascii_bytes = (unsigned char *) (STR); \
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register unsigned char *limit = _ascii_bytes + (LENGTH); \
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register unsigned bytes_in_chunk = 0; \
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for (; _ascii_bytes < limit; _ascii_bytes++) \
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{ \
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register unsigned char *p; \
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if (bytes_in_chunk >= 64) \
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{ \
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fputc ('\n', (FILE)); \
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bytes_in_chunk = 0; \
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} \
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for (p = _ascii_bytes; p < limit && *p != '\0'; p++) \
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continue; \
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if (p < limit && (p - _ascii_bytes) <= STRING_LIMIT) \
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{ \
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if (bytes_in_chunk > 0) \
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{ \
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fputc ('\n', (FILE)); \
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bytes_in_chunk = 0; \
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} \
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ASM_OUTPUT_LIMITED_STRING ((FILE), _ascii_bytes); \
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_ascii_bytes = p; \
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} \
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else \
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{ \
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if (bytes_in_chunk == 0) \
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fprintf ((FILE), "\t.byte\t"); \
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else \
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fputc (',', (FILE)); \
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fprintf ((FILE), "0x%02x", *_ascii_bytes); \
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bytes_in_chunk += 5; \
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} \
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} \
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if (bytes_in_chunk > 0) \
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fprintf ((FILE), "\n"); \
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} \
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while (0)
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/* This is how to output an element of a case-vector that is relative.
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This is only used for PIC code. See comments by the `casesi' insn in
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i386.md for an explanation of the expression this outputs.
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PE format differs on what PC-relative offsets look like (see
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coff_i386_rtype_to_howto), and we need to compensate (by one word) here. */
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#undef ASM_OUTPUT_ADDR_DIFF_ELT
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#define ASM_OUTPUT_ADDR_DIFF_ELT(FILE, BODY, VALUE, REL) \
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fprintf (FILE, "\t.long __GLOBAL_OFFSET_TABLE_+[.-%s%d+4]\n", LPREFIX, VALUE)
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/* Indicate that jump tables go in the text section. This is
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necessary when compiling PIC code. */
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#define JUMP_TABLES_IN_TEXT_SECTION 1
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/* Emit code to check the stack when allocating more that 4000
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bytes in one go. */
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#define CHECK_STACK_LIMIT 0x1000
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/* the following are OSF linker (not gld) specific... we don't want them */
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#undef HAS_INIT_SECTION
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#undef LD_INIT_SWITCH
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#undef LD_FINI_SWITCH
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/* The following are needed for C++, but also needed for profiling */
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/* Support const sections and the ctors and dtors sections for g++.
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Note that there appears to be two different ways to support const
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sections at the moment. You can either #define the symbol
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READONLY_DATA_SECTION (giving it some code which switches to the
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readonly data section) or else you can #define the symbols
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EXTRA_SECTIONS, EXTRA_SECTION_FUNCTIONS, SELECT_SECTION, and
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SELECT_RTX_SECTION. We do both here just to be on the safe side. */
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#define USE_CONST_SECTION 1
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#define CONST_SECTION_ASM_OP ".section\t.rdata,\"r\""
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/* Define the pseudo-ops used to switch to the .ctors and .dtors sections.
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Note that we want to give these sections the SHF_WRITE attribute
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because these sections will actually contain data (i.e. tables of
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addresses of functions in the current root executable or shared library
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file) and, in the case of a shared library, the relocatable addresses
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will have to be properly resolved/relocated (and then written into) by
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the dynamic linker when it actually attaches the given shared library
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to the executing process. (Note that on SVR4, you may wish to use the
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`-z text' option to the ELF linker, when building a shared library, as
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an additional check that you are doing everything right. But if you do
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use the `-z text' option when building a shared library, you will get
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errors unless the .ctors and .dtors sections are marked as writable
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via the SHF_WRITE attribute.) */
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#define CTORS_SECTION_ASM_OP ".section\t.ctors,\"x\""
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#define DTORS_SECTION_ASM_OP ".section\t.dtors,\"x\""
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/* A default list of other sections which we might be "in" at any given
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time. For targets that use additional sections (e.g. .tdesc) you
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should override this definition in the target-specific file which
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includes this file. */
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#undef EXTRA_SECTIONS
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#define EXTRA_SECTIONS in_const, in_ctors, in_dtors
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/* A default list of extra section function definitions. For targets
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that use additional sections (e.g. .tdesc) you should override this
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definition in the target-specific file which includes this file. */
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#undef EXTRA_SECTION_FUNCTIONS
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#define EXTRA_SECTION_FUNCTIONS \
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CONST_SECTION_FUNCTION \
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CTORS_SECTION_FUNCTION \
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DTORS_SECTION_FUNCTION
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#undef READONLY_DATA_SECTION
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#define READONLY_DATA_SECTION() const_section ()
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extern void text_section ();
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#define CONST_SECTION_FUNCTION \
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void \
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const_section () \
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{ \
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if (!USE_CONST_SECTION) \
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text_section(); \
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else if (in_section != in_const) \
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{ \
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fprintf (asm_out_file, "%s\n", CONST_SECTION_ASM_OP); \
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in_section = in_const; \
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} \
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}
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#define CTORS_SECTION_FUNCTION \
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void \
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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; \
|
||
|
|
} \
|
||
|
|
}
|
||
|
|
|
||
|
|
#if 0
|
||
|
|
/* Currently gas chokes on this; that's not too hard to fix, but there's
|
||
|
|
not a lot of impeteus to do it, either. If it is done, gas will have
|
||
|
|
to handle long section name escapes (which are defined in the COFF/PE
|
||
|
|
document as /nnn where nnn is a string table index). The benefit:
|
||
|
|
section attributes and -ffunction-sections, neither of which seem to
|
||
|
|
be critical. */
|
||
|
|
/* gas may have been fixed? bfd was. */
|
||
|
|
|
||
|
|
/* Switch into a generic section.
|
||
|
|
This is currently only used to support section attributes.
|
||
|
|
|
||
|
|
We make the section read-only and executable for a function decl,
|
||
|
|
read-only for a const data decl, and writable for a non-const data decl. */
|
||
|
|
#define ASM_OUTPUT_SECTION_NAME(FILE, DECL, NAME) \
|
||
|
|
fprintf (FILE, ".section\t%s,\"%s\",@progbits\n", NAME, \
|
||
|
|
(DECL) && TREE_CODE (DECL) == FUNCTION_DECL ? "ax" : \
|
||
|
|
(DECL) && TREE_READONLY (DECL) ? "a" : "aw")
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#define INT_ASM_OP ".long"
|
||
|
|
|
||
|
|
/* The MS compilers take alignment as a number of bytes, so we do as well */
|
||
|
|
#undef ASM_OUTPUT_ALIGN
|
||
|
|
#define ASM_OUTPUT_ALIGN(FILE,LOG) \
|
||
|
|
if ((LOG)!=0) fprintf ((FILE), "\t.balign %d\n", 1<<(LOG))
|
||
|
|
|
||
|
|
/* A C statement (sans semicolon) to output an element in the table of
|
||
|
|
global constructors. */
|
||
|
|
#define ASM_OUTPUT_CONSTRUCTOR(FILE,NAME) \
|
||
|
|
do { \
|
||
|
|
ctors_section (); \
|
||
|
|
fprintf (FILE, "\t%s\t ", INT_ASM_OP); \
|
||
|
|
assemble_name (FILE, NAME); \
|
||
|
|
fprintf (FILE, "\n"); \
|
||
|
|
} while (0)
|
||
|
|
|
||
|
|
/* A C statement (sans semicolon) to output an element in the table of
|
||
|
|
global destructors. */
|
||
|
|
#define ASM_OUTPUT_DESTRUCTOR(FILE,NAME) \
|
||
|
|
do { \
|
||
|
|
dtors_section (); \
|
||
|
|
fprintf (FILE, "\t%s\t ", INT_ASM_OP); \
|
||
|
|
assemble_name (FILE, NAME); \
|
||
|
|
fprintf (FILE, "\n"); \
|
||
|
|
} while (0)
|
||
|
|
|
||
|
|
/* The linker will take care of this, and having them causes problems with
|
||
|
|
ld -r (specifically -rU). */
|
||
|
|
#define CTOR_LISTS_DEFINED_EXTERNALLY 1
|
||
|
|
|
||
|
|
#define SET_ASM_OP ".set"
|
||
|
|
/* Output a definition (implements alias) */
|
||
|
|
#define ASM_OUTPUT_DEF(FILE,LABEL1,LABEL2) \
|
||
|
|
do \
|
||
|
|
{ \
|
||
|
|
fprintf ((FILE), "\t%s\t", SET_ASM_OP); \
|
||
|
|
assemble_name (FILE, LABEL1); \
|
||
|
|
fprintf (FILE, ","); \
|
||
|
|
assemble_name (FILE, LABEL2); \
|
||
|
|
fprintf (FILE, "\n"); \
|
||
|
|
} \
|
||
|
|
while (0)
|
||
|
|
|
||
|
|
#define HOST_PTR_PRINTF "%p"
|
||
|
|
#define HOST_PTR_AS_INT unsigned long
|
||
|
|
|
||
|
|
#define PCC_BITFIELD_TYPE_MATTERS 1
|
||
|
|
#define PCC_BITFIELD_TYPE_TEST TYPE_NATIVE(rec)
|
||
|
|
#define GROUP_BITFIELDS_BY_ALIGN TYPE_NATIVE(rec)
|
||
|
|
|
||
|
|
/* The following two flags are usually "off" for i386, because some non-gnu
|
||
|
|
tools (for the i386) don't handle them. However, we don't have that
|
||
|
|
problem, so.... */
|
||
|
|
|
||
|
|
/* Forward references to tags are allowed. */
|
||
|
|
#define SDB_ALLOW_FORWARD_REFERENCES
|
||
|
|
|
||
|
|
/* Unknown tags are also allowed. */
|
||
|
|
#define SDB_ALLOW_UNKNOWN_REFERENCES
|
||
|
|
|
||
|
|
/* The integer half of this list needs to be constant. However, there's
|
||
|
|
a lot of disagreement about what the floating point adjustments should
|
||
|
|
be. We pick one that works with gdb. (The underlying problem is
|
||
|
|
what to do about the segment registers. Since we have access to them
|
||
|
|
from /proc, we'll allow them to be accessed in gdb, even tho the
|
||
|
|
gcc compiler can't generate them. (There's some evidence that
|
||
|
|
MSVC does, but possibly only for certain special "canned" sequences.) */
|
||
|
|
|
||
|
|
#undef DBX_REGISTER_NUMBER
|
||
|
|
#define DBX_REGISTER_NUMBER(n) \
|
||
|
|
((n) == 0 ? 0 \
|
||
|
|
: (n) == 1 ? 2 \
|
||
|
|
: (n) == 2 ? 1 \
|
||
|
|
: (n) == 3 ? 3 \
|
||
|
|
: (n) == 4 ? 6 \
|
||
|
|
: (n) == 5 ? 7 \
|
||
|
|
: (n) == 6 ? 5 \
|
||
|
|
: (n) == 7 ? 4 \
|
||
|
|
: ((n) >= FIRST_STACK_REG && (n) <= LAST_STACK_REG) ? (n)+8 \
|
||
|
|
: (-1))
|
||
|
|
|
||
|
|
/* Define this macro if references to a symbol must be treated
|
||
|
|
differently depending on something about the variable or
|
||
|
|
function named by the symbol (such as what section it is in).
|
||
|
|
|
||
|
|
Apply stddef, handle (as yet unimplemented) pic.
|
||
|
|
|
||
|
|
stddef renaming does NOT apply to Alpha. */
|
||
|
|
|
||
|
|
char *gen_stdcall_suffix ();
|
||
|
|
|
||
|
|
#undef ENCODE_SECTION_INFO
|
||
|
|
#define ENCODE_SECTION_INFO(DECL) \
|
||
|
|
do \
|
||
|
|
{ \
|
||
|
|
if (flag_pic) \
|
||
|
|
{ \
|
||
|
|
rtx rtl = (TREE_CODE_CLASS (TREE_CODE (DECL)) != 'd' \
|
||
|
|
? TREE_CST_RTL (DECL) : DECL_RTL (DECL)); \
|
||
|
|
SYMBOL_REF_FLAG (XEXP (rtl, 0)) \
|
||
|
|
= (TREE_CODE_CLASS (TREE_CODE (DECL)) != 'd' \
|
||
|
|
|| ! TREE_PUBLIC (DECL)); \
|
||
|
|
} \
|
||
|
|
if (TREE_CODE (DECL) == FUNCTION_DECL) \
|
||
|
|
if (lookup_attribute ("stdcall", \
|
||
|
|
TYPE_ATTRIBUTES (TREE_TYPE (DECL)))) \
|
||
|
|
XEXP (DECL_RTL (DECL), 0) = \
|
||
|
|
gen_rtx (SYMBOL_REF, Pmode, gen_stdcall_suffix (DECL)); \
|
||
|
|
} \
|
||
|
|
while (0)
|
||
|
|
|
||
|
|
/* This macro gets just the user-specified name
|
||
|
|
out of the string in a SYMBOL_REF. Discard
|
||
|
|
trailing @[NUM] encoded by ENCODE_SECTION_INFO. */
|
||
|
|
#undef STRIP_NAME_ENCODING
|
||
|
|
#define STRIP_NAME_ENCODING(VAR,SYMBOL_NAME) \
|
||
|
|
do { \
|
||
|
|
char *_p; \
|
||
|
|
char *_name = SYMBOL_NAME; \
|
||
|
|
for (_p = _name; *_p && *_p != '@'; ++_p) \
|
||
|
|
; \
|
||
|
|
if (*_p == '@') \
|
||
|
|
{ \
|
||
|
|
int _len = _p - _name; \
|
||
|
|
(VAR) = (char *) alloca (_len + 1); \
|
||
|
|
strncpy ((VAR), _name, _len); \
|
||
|
|
(VAR)[_len] = '\0'; \
|
||
|
|
} \
|
||
|
|
else \
|
||
|
|
(VAR) = _name; \
|
||
|
|
} while (0)
|
||
|
|
|
||
|
|
#if 0
|
||
|
|
/* Turn this back on when the linker is updated to handle grouped
|
||
|
|
.data$ sections correctly. See corresponding note in i386/interix.c.
|
||
|
|
MK. */
|
||
|
|
|
||
|
|
/* Define this macro if in some cases global symbols from one translation
|
||
|
|
unit may not be bound to undefined symbols in another translation unit
|
||
|
|
without user intervention. For instance, under Microsoft Windows
|
||
|
|
symbols must be explicitly imported from shared libraries (DLLs). */
|
||
|
|
#define MULTIPLE_SYMBOL_SPACES
|
||
|
|
|
||
|
|
#define UNIQUE_SECTION_P(DECL) DECL_ONE_ONLY (DECL)
|
||
|
|
extern void i386_pe_unique_section ();
|
||
|
|
#define UNIQUE_SECTION(DECL,RELOC) i386_pe_unique_section (DECL, RELOC)
|
||
|
|
|
||
|
|
#define SUPPORTS_ONE_ONLY 1
|
||
|
|
|
||
|
|
/* A C statement to output something to the assembler file to switch to section
|
||
|
|
NAME for object DECL which is either a FUNCTION_DECL, a VAR_DECL or
|
||
|
|
NULL_TREE. Some target formats do not support arbitrary sections. Do not
|
||
|
|
define this macro in such cases. */
|
||
|
|
#undef ASM_OUTPUT_SECTION_NAME
|
||
|
|
#define ASM_OUTPUT_SECTION_NAME(STREAM, DECL, NAME, RELOC) \
|
||
|
|
do { \
|
||
|
|
static struct section_info \
|
||
|
|
{ \
|
||
|
|
struct section_info *next; \
|
||
|
|
char *name; \
|
||
|
|
enum sect_enum {SECT_RW, SECT_RO, SECT_EXEC} type; \
|
||
|
|
} *sections; \
|
||
|
|
struct section_info *s; \
|
||
|
|
char *mode; \
|
||
|
|
enum sect_enum type; \
|
||
|
|
\
|
||
|
|
for (s = sections; s; s = s->next) \
|
||
|
|
if (!strcmp (NAME, s->name)) \
|
||
|
|
break; \
|
||
|
|
\
|
||
|
|
if (DECL && TREE_CODE (DECL) == FUNCTION_DECL) \
|
||
|
|
type = SECT_EXEC, mode = "x"; \
|
||
|
|
else if (DECL && DECL_READONLY_SECTION (DECL, RELOC)) \
|
||
|
|
type = SECT_RO, mode = "r"; \
|
||
|
|
else \
|
||
|
|
type = SECT_RW, mode = "w"; \
|
||
|
|
\
|
||
|
|
if (s == 0) \
|
||
|
|
{ \
|
||
|
|
s = (struct section_info *) xmalloc (sizeof (struct section_info)); \
|
||
|
|
s->name = xmalloc ((strlen (NAME) + 1) * sizeof (*NAME)); \
|
||
|
|
strcpy (s->name, NAME); \
|
||
|
|
s->type = type; \
|
||
|
|
s->next = sections; \
|
||
|
|
sections = s; \
|
||
|
|
fprintf (STREAM, ".section\t%s,\"%s\"\n", NAME, mode); \
|
||
|
|
/* Functions may have been compiled at various levels of \
|
||
|
|
optimization so we can't use `same_size' here. Instead, \
|
||
|
|
have the linker pick one. */ \
|
||
|
|
if ((DECL) && DECL_ONE_ONLY (DECL)) \
|
||
|
|
fprintf (STREAM, "\t.linkonce %s\n", \
|
||
|
|
TREE_CODE (DECL) == FUNCTION_DECL \
|
||
|
|
? "discard" : "same_size"); \
|
||
|
|
} \
|
||
|
|
else \
|
||
|
|
{ \
|
||
|
|
fprintf (STREAM, ".section\t%s,\"%s\"\n", NAME, mode); \
|
||
|
|
} \
|
||
|
|
} while (0)
|
||
|
|
|
||
|
|
#endif /* 0 */
|
||
|
|
|
||
|
|
/* DWARF2 Unwinding doesn't work with exception handling yet. */
|
||
|
|
#define DWARF2_UNWIND_INFO 0
|
||
|
|
|
||
|
|
/* Don't assume anything about the header files. */
|
||
|
|
#define NO_IMPLICIT_EXTERN_C
|
||
|
|
|