Initial revision

From-SVN: r9255

gcc/config/i386/linux-aout.h

+/* Definitions for Intel 386 running Linux
+   Copyright (C) 1992, 1994, 1995 Free Software Foundation, Inc.
+   Contributed by H.J. Lu (hjl@nynexst.com)
+
+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.  */
+
+/* This is tested by i386/gas.h.  */
+#define YES_UNDERSCORES
+
+#include "i386/gstabs.h"
+#include "linux-aout.h"	/* some common stuff */
+
+/* Specify predefined symbols in preprocessor.  */
+
+#undef CPP_PREDEFINES
+#define CPP_PREDEFINES "-Dunix -Di386 -Dlinux -Asystem(unix) -Asystem(posix) -Acpu(i386) -Amachine(i386)"
+
+#undef CPP_SPEC
+#if TARGET_CPU_DEFAULT == 2
+#define CPP_SPEC "%{!m386:-D__i486__} %{posix:-D_POSIX_SOURCE}"
+#else
+#define CPP_SPEC "%{m486:-D__i486__} %{posix:-D_POSIX_SOURCE}"
+#endif
+
+#undef SIZE_TYPE
+#define SIZE_TYPE "unsigned int"
+
+#undef PTRDIFF_TYPE
+#define PTRDIFF_TYPE "int"
+
+#undef WCHAR_TYPE
+#define WCHAR_TYPE "long int"
+
+#undef WCHAR_TYPE_SIZE
+#define WCHAR_TYPE_SIZE BITS_PER_WORD
+
+/* Don't default to pcc-struct-return, because gcc is the only compiler,
+   and we want to retain compatibility with older gcc versions.  */
+#define DEFAULT_PCC_STRUCT_RETURN 0
+
+#undef LIB_SPEC
+
+#if 1
+/* We no longer link with libc_p.a or libg.a by default. If you
+ * want to profile or debug the Linux C library, please add
+ * -lc_p or -ggdb to LDFLAGS at the link time, respectively.
+ */
+#define LIB_SPEC \
+"%{mieee-fp:-lieee} %{p:-lgmon} %{pg:-lgmon} %{!ggdb:-lc} %{ggdb:-lg}"
+#else    
+#define LIB_SPEC \
+"%{mieee-fp:-lieee} %{p:-lgmon -lc_p} %{pg:-lgmon -lc_p} \
+ %{!p:%{!pg:%{!g*:-lc} %{g*:-lg -static}}}" 
+#endif
+
+
+#undef LINK_SPEC
+#define LINK_SPEC	"-m i386linux"
+
+/* Get perform_* macros to build libgcc.a.  */
+#include "i386/perform.h"

gcc/config/linux-aout.h

+/* Definitions for Linux
+   Copyright (C) 1995 Free Software Foundation, Inc.
+   Contributed by H.J. Lu (hjl@nynexst.com)
+
+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.  */
+
+/* Don't assume anything about the header files. */
+#define NO_IMPLICIT_EXTERN_C
+
+#undef HAVE_ATEXIT
+#define HAVE_ATEXIT
+
+/* Linux uses ctype from glibc.a. I am not sure how complete it is.
+   For now, we play safe. It may change later. */
+
+#if 0
+#undef MULTIBYTE_CHARS
+#define MULTIBYTE_CHARS	1
+#endif
+
+#undef STARTFILE_SPEC
+#define STARTFILE_SPEC  "%{pg:gcrt0.o%s} %{!pg:%{p:gcrt0.o%s} %{!p:crt0.o%s}} %{static:-static}"
+
+/* There are conflicting reports about whether this system uses
+   a different assembler syntax.  wilson@cygnus.com says # is right.  */
+#undef COMMENT_BEGIN
+#define COMMENT_BEGIN "#"
+
+#undef ASM_APP_ON
+#define ASM_APP_ON "#APP\n"
+
+#undef ASM_APP_OFF
+#define ASM_APP_OFF "#NO_APP\n"
+
+/* We need that too. */
+#define HANDLE_SYSV_PRAGMA

gcc/config/linux.h

+/* Definitions for Linux with ELF format
+   Copyright (C) 1995 Free Software Foundation, Inc.
+   Contributed by Eric Youngdale.
+   Modified for stabs-in-ELF by H.J. Lu.
+
+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.  */
+
+/* Don't assume anything about the header files. */
+#define NO_IMPLICIT_EXTERN_C
+
+#undef HAVE_ATEXIT
+#define HAVE_ATEXIT
+
+/* Linux uses ctype from glibc.a. I am not sure how complete it is.
+   For now, we play safe. It may change later. */
+
+#if 0
+#undef MULTIBYTE_CHARS
+#define MULTIBYTE_CHARS 1
+#endif
+
+/* There are conflicting reports about whether this system uses
+   a different assembler syntax.  wilson@cygnus.com says # is right.  */
+#undef COMMENT_BEGIN
+#define COMMENT_BEGIN "#"
+
+#undef ASM_APP_ON
+#define ASM_APP_ON "#APP\n"
+
+#undef ASM_APP_OFF
+#define ASM_APP_OFF "#NO_APP\n"
+
+/* Use stabs instead of DWARF debug format.  */
+#define PREFERRED_DEBUGGING_TYPE DBX_DEBUG
+#include "svr4.h"
+
+#undef MD_EXEC_PREFIX
+#undef MD_STARTFILE_PREFIX
+
+/* Output at beginning of assembler file.  */
+/* The .file command should always begin the output.  */
+#undef ASM_FILE_START
+#define ASM_FILE_START(FILE)						\
+  do {									\
+	output_file_directive (FILE, main_input_filename);		\
+	fprintf (FILE, "\t.version\t\"01.01\"\n");			\
+  } while (0)
+
+#undef	LIBGCC_SPEC
+#define LIBGCC_SPEC \
+  "%{!shared:-lgcc}"
+
+
+/* Provide a STARTFILE_SPEC appropriate for Linux.  Here we add
+   the Linux magical crtbegin.o file (see crtstuff.c) which
+   provides part of the support for getting C++ file-scope static
+   object constructed before entering `main'. */
+   
+#undef	STARTFILE_SPEC
+#define STARTFILE_SPEC \
+  "%{!shared: \
+     %{pg:gcrt1.o%s} %{!pg:%{p:gcrt1.o%s} %{!p:crt1.o%s}}}\
+   crti.o%s %{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}"
+
+/* Provide a ENDFILE_SPEC appropriate for Linux.  Here we tack on
+   the Linux magical crtend.o file (see crtstuff.c) which
+   provides part of the support for getting C++ file-scope static
+   object constructed before entering `main', followed by a normal
+   Linux "finalizer" file, `crtn.o'.  */
+
+#undef	ENDFILE_SPEC
+#define ENDFILE_SPEC \
+  "%{!shared:crtend.o%s} %{shared:crtendS.o%s} crtn.o%s"

gcc/config/x-linux

+# It is defined in config/xm-linux.h.
+# X_CFLAGS = -DPOSIX
+
+# The following is needed when compiling stages 2 and 3 because gcc's
+# limits.h must be picked up before /usr/include/limits.h.  This is because
+# each does an #include_next of the other if the other hasn't been included.
+# /usr/include/limits.h loses if it gets found first because /usr/include is
+# at the end of the search order.  When a new version of gcc is released,
+# gcc's limits.h hasn't been installed yet and hence isn't found.
+
+BOOT_CFLAGS = -O $(CFLAGS) -Iinclude
+
+# Don't run fixproto
+STMP_FIXPROTO =