configure.in (i?86-*-beos{pe,elf,}*): Recognize.

        * configure.in (i?86-*-beos{pe,elf,}*): Recognize.
        * i386/t-beos, i386/x-beos, i386/xm-beos.h: New files.
        * i386/beos-elf.h, i386/beos-pe.h: New files.

        * Makefile.in (CROSS_SYSTEM_HEADER_DIR): New.
        * cross-make (SYSTEM_HEADER_DIR): Define using
        CROSS_SYSTEM_HEADER_DIR.

        * gcc.c (LIBRARY_PATH_ENV): Provide default.
        (process_command): Use it.
        (main): Likewise.  Kill trailing = from env vars.
        (build_search_list): Put it back.
        * collect2.c (main): Use LIBRARY_PATH_ENV.

        * configure.in (GCC_NEED_DECLARATIONS): Add environ.
        * toplev.c: Use NEED_DECLARATION_ENVIRON.

        * tm.texi (Frame Layout): Document SMALL_STACK.
        * c-common.c (c_common_nodes_and_builtins): Check it.

        * system.h: Undef alloca after including glibc's <stdlib.h>,
        if USE_C_ALLOCA is defined.

        * gcc.c (set_input): New fn.
        (main): After all input files are compiled, reset the input file
        info to the first.

        * aclocal.m4 (rindex, index): If already defined, don't attempt
        to redefine.

        * ginclude/varargs.h: (__va_list__): Define ifndef.
        * ginclude/stdarg.h: Likewise.

        * ginclude/stddef.h (__WCHAR_TYPE__) [BEOS]: Use int
        instead of unsigned char.

        * hash.h (true, false, boolean): Undef before enum.

From-SVN: r31366

1 files changed, 436 insertions, 0 deletions

diff --git a/gcc/config/i386/beos-elf.h b/gcc/config/i386/beos-elf.h
new file mode 100644
index 0000000..44524df
--- /dev/null
+++ b/gcc/config/i386/beos-elf.h
@@ -0,0 +1,436 @@
+/* Definitions for Intel x86 running BeOS
+   Copyright (C) 1998-99, 2000 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 <i386/i386.h>	/* Base i386 target machine definitions */
+#include <i386/att.h>	/* Use the i386 AT&T assembler syntax */
+#include <svr4.h>	/* some common stuff */
+
+#undef TARGET_VERSION
+#define TARGET_VERSION fprintf (stderr, " (i386 BeOS/ELF)");
+
+/* Change debugging to Dwarf2.  */
+#undef PREFERRED_DEBUGGING_TYPE
+#define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG
+
+/* The SVR4 ABI for the i386 says that records and unions are returned
+   in memory.  */
+#undef DEFAULT_PCC_STRUCT_RETURN
+#define DEFAULT_PCC_STRUCT_RETURN 1
+
+#undef ASM_COMMENT_START
+#define ASM_COMMENT_START " #"
+
+/* This is how to output an element of a case-vector that is relative.
+   This is only used for PIC code.  See comments by the `casesi' insn in
+   i386.md for an explanation of the expression this outputs. */
+#undef ASM_OUTPUT_ADDR_DIFF_ELT
+#define ASM_OUTPUT_ADDR_DIFF_ELT(FILE, BODY, VALUE, REL) \
+  fprintf (FILE, "\t.long _GLOBAL_OFFSET_TABLE_+[.-%s%d]\n", LPREFIX, VALUE)
+
+/* Indicate that jump tables go in the text section.  This is
+   necessary when compiling PIC code.  */
+#define JUMP_TABLES_IN_TEXT_SECTION (flag_pic)
+
+/* Copy this from the svr4 specifications... */
+/* Define the register numbers to be used in Dwarf debugging information.
+   The SVR4 reference port C compiler uses the following register numbers
+   in its Dwarf output code:
+	0 for %eax (gnu regno = 0)
+	1 for %ecx (gnu regno = 2)
+	2 for %edx (gnu regno = 1)
+	3 for %ebx (gnu regno = 3)
+	4 for %esp (gnu regno = 7)
+	5 for %ebp (gnu regno = 6)
+	6 for %esi (gnu regno = 4)
+	7 for %edi (gnu regno = 5)
+   The following three DWARF register numbers are never generated by
+   the SVR4 C compiler or by the GNU compilers, but SDB on x86/svr4
+   believes these numbers have these meanings.
+	8  for %eip    (no gnu equivalent)
+	9  for %eflags (no gnu equivalent)
+	10 for %trapno (no gnu equivalent)
+   It is not at all clear how we should number the FP stack registers
+   for the x86 architecture.  If the version of SDB on x86/svr4 were
+   a bit less brain dead with respect to floating-point then we would
+   have a precedent to follow with respect to DWARF register numbers
+   for x86 FP registers, but the SDB on x86/svr4 is so completely
+   broken with respect to FP registers that it is hardly worth thinking
+   of it as something to strive for compatibility with.
+   The version of x86/svr4 SDB I have at the moment does (partially)
+   seem to believe that DWARF register number 11 is associated with
+   the x86 register %st(0), but that's about all.  Higher DWARF
+   register numbers don't seem to be associated with anything in
+   particular, and even for DWARF regno 11, SDB only seems to under-
+   stand that it should say that a variable lives in %st(0) (when
+   asked via an `=' command) if we said it was in DWARF regno 11,
+   but SDB still prints garbage when asked for the value of the
+   variable in question (via a `/' command).
+   (Also note that the labels SDB prints for various FP stack regs
+   when doing an `x' command are all wrong.)
+   Note that these problems generally don't affect the native SVR4
+   C compiler because it doesn't allow the use of -O with -g and
+   because when it is *not* optimizing, it allocates a memory
+   location for each floating-point variable, and the memory
+   location is what gets described in the DWARF AT_location
+   attribute for the variable in question.
+   Regardless of the severe mental illness of the x86/svr4 SDB, we
+   do something sensible here and we use the following DWARF
+   register numbers.  Note that these are all stack-top-relative
+   numbers.
+	11 for %st(0) (gnu regno = 8)
+	12 for %st(1) (gnu regno = 9)
+	13 for %st(2) (gnu regno = 10)
+	14 for %st(3) (gnu regno = 11)
+	15 for %st(4) (gnu regno = 12)
+	16 for %st(5) (gnu regno = 13)
+	17 for %st(6) (gnu regno = 14)
+	18 for %st(7) (gnu regno = 15)
+*/
+#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)+3 \
+ : (-1))
+
+/* Output assembler code to FILE to increment profiler label # LABELNO
+   for profiling a function entry.  */
+
+#undef FUNCTION_PROFILER
+#define FUNCTION_PROFILER(FILE, LABELNO)  \
+{									\
+  if (flag_pic)								\
+    {									\
+      fprintf (FILE, "\tleal %sP%d@GOTOFF(%%ebx),%%edx\n",		\
+	       LPREFIX, (LABELNO));					\
+      fprintf (FILE, "\tcall *mcount@GOT(%%ebx)\n");			\
+    }									\
+  else									\
+    {									\
+      fprintf (FILE, "\tmovl $%sP%d,%%edx\n", LPREFIX, (LABELNO));	\
+      fprintf (FILE, "\tcall mcount\n");				\
+    }									\
+}
+
+#undef SIZE_TYPE
+#define SIZE_TYPE "long unsigned int"
+ 
+#undef PTRDIFF_TYPE
+#define PTRDIFF_TYPE "long int"
+  
+#undef WCHAR_TYPE
+#define WCHAR_TYPE "short unsigned int"
+   
+#undef WCHAR_UNSIGNED
+#define WCHAR_UNSIGNED 1
+
+#undef WCHAR_TYPE_SIZE
+#define WCHAR_TYPE_SIZE 16
+    
+#undef CPP_PREDEFINES
+#define CPP_PREDEFINES "-D__ELF__ -D__BEOS__ -D__INTEL__ -D_X86_=1 \
+-D__stdcall=__attribute__((__stdcall__)) \
+-D__cdecl=__attribute__((__cdecl__)) \
+-D__declspec(x)=__attribute__((x)) \
+-Asystem(beos)"
+
+#undef CPP_SPEC
+#define CPP_SPEC "%(cpp_cpu) %{!no-fPIC:%{!no-fpic:-D__PIC__ -D__pic__}}"
+
+/* BeOS uses lots of multichars, so don't warn about them unless the
+   user explicitly asks for the warnings with -Wmultichar.  Note that
+   CC1_SPEC is used for both cc1 and cc1plus. */
+
+#undef CC1_SPEC
+#define CC1_SPEC "%{!no-fpic:%{!fPIC:-fpic}} %{!Wmultichar: -Wno-multichar} %(cc1_cpu) %{profile:-p}"
+
+#undef CC1PLUS_SPEC
+#define CC1PLUS_SPEC "%{!Wctor-dtor-privacy:-Wno-ctor-dtor-privacy}"
+
+/* Provide a LINK_SPEC appropriate for BeOS.  Here we provide support
+   for the special GCC options -static and -shared, which allow us to
+   link things in one of these three modes by applying the appropriate
+   combinations of options at link-time. */
+
+/* If ELF is the default format, we should not use /lib/elf. */
+
+#undef	LINK_SPEC
+#define LINK_SPEC "%{!o*:-o %b} -m elf_i386_be -shared -Bsymbolic %{nostart:-e 0}"
+
+/* Provide start and end file specs appropriate to glibc.  */
+
+/* LIB_SPEC for BeOS */
+#undef LIB_SPEC
+#define LIB_SPEC "-lnet -lroot"
+
+/* gcc runtime lib is built into libroot.so on BeOS */
+/* ??? This is gonna be lovely when the next release of gcc has 
+   some new symbol in, so that links start failing.  */
+#undef LIBGCC_SPEC
+#define LIBGCC_SPEC ""
+
+#undef  STARTFILE_SPEC
+#define STARTFILE_SPEC "crti.o%s crtbegin.o%s %{!nostart:start_dyn.o%s}"
+
+#undef  ENDFILE_SPEC
+#define ENDFILE_SPEC "crtend.o%s crtn.o%s"
+
+/* Get perform_* macros to build libgcc.a.  */
+#include "i386/perform.h"
+
+/* A C statement (sans semicolon) to output to the stdio stream
+   FILE the assembler definition of uninitialized global DECL named
+   NAME whose size is SIZE bytes and alignment is ALIGN bytes.
+   Try to use asm_output_aligned_bss to implement this macro.  */
+
+#define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \
+  asm_output_aligned_bss (FILE, DECL, NAME, SIZE, ALIGN)
+
+/* A C statement to output to the stdio stream FILE an assembler
+   command to advance the location counter to a multiple of 1<<LOG
+   bytes if it is within MAX_SKIP bytes.
+
+   This is used to align code labels according to Intel recommendations.  */
+
+#ifdef HAVE_GAS_MAX_SKIP_P2ALIGN
+#define ASM_OUTPUT_MAX_SKIP_ALIGN(FILE,LOG,MAX_SKIP) \
+  if ((LOG)!=0) \
+    if ((MAX_SKIP)==0) fprintf ((FILE), "\t.p2align %d\n", (LOG)); \
+    else fprintf ((FILE), "\t.p2align %d,,%d\n", (LOG), (MAX_SKIP))
+#endif
+
+/*
+ * Support for __declspec(dllimport) & __declspec(dllexport).
+ */
+
+/* We don't care about dllimport.  */
+
+#define TARGET_NOP_FUN_DLLIMPORT 1
+
+/* A C expression whose value is nonzero if IDENTIFIER with arguments ARGS
+   is a valid machine specific attribute for DECL.
+   The attributes in ATTRIBUTES have previously been assigned to DECL.  */
+
+#undef VALID_MACHINE_DECL_ATTRIBUTE
+#define VALID_MACHINE_DECL_ATTRIBUTE(DECL, ATTRIBUTES, IDENTIFIER, ARGS) \
+  i386_pe_valid_decl_attribute_p (DECL, ATTRIBUTES, IDENTIFIER, ARGS)
+extern int i386_pe_valid_decl_attribute_p ();
+
+/* A C expression whose value is nonzero if IDENTIFIER with arguments ARGS
+   is a valid machine specific attribute for TYPE.
+   The attributes in ATTRIBUTES have previously been assigned to TYPE.  */
+
+#undef VALID_MACHINE_TYPE_ATTRIBUTE
+#define VALID_MACHINE_TYPE_ATTRIBUTE(TYPE, ATTRIBUTES, IDENTIFIER, ARGS) \
+  i386_pe_valid_type_attribute_p (TYPE, ATTRIBUTES, IDENTIFIER, ARGS)
+extern int i386_pe_valid_type_attribute_p ();
+
+#define MERGE_MACHINE_DECL_ATTRIBUTES(OLD, NEW) \
+  i386_pe_merge_decl_attributes ((OLD), (NEW))
+extern union tree_node *i386_pe_merge_decl_attributes ();
+
+/* Used to implement dllexport overriding dllimport semantics.  It's also used
+   to handle vtables - the first pass won't do anything because
+   DECL_CONTEXT (DECL) will be 0 so i386_pe_dll{ex,im}port_p will return 0.
+   It's also used to handle dllimport override semantics.  */
+#if 0
+#define REDO_SECTION_INFO_P(DECL) \
+  ((DECL_MACHINE_ATTRIBUTES (DECL) != NULL_TREE) \
+   || (TREE_CODE (DECL) == VAR_DECL && DECL_VIRTUAL_P (DECL)))
+#else
+#define REDO_SECTION_INFO_P(DECL) 1
+#endif
+
+/* Used only here locally.  If the decl has been exported, emit the 
+   necessary assembly.  */
+
+#define ASM_EXPORT_DECL(FILE, NAME, DECL)				\
+  do {									\
+    if ((DECL) && i386_pe_dllexport_p (DECL))				\
+      {									\
+	fprintf ((FILE), ".section .exports\n");			\
+	fprintf ((FILE), "\t%s\t\"", STRING_ASM_OP);			\
+        assemble_name (FILE, NAME);					\
+	fprintf ((FILE), "\"\n.previous\n");				\
+      }									\
+  } while (0)
+
+/* Write the extra assembler code needed to declare a function properly.
+   Some svr4 assemblers need to also have something extra said about the
+   function's return value.  We allow for that here.  */
+
+#undef ASM_DECLARE_FUNCTION_NAME
+#define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL)			\
+  do {									\
+    ASM_EXPORT_DECL(FILE, NAME, DECL);					\
+    fprintf (FILE, "\t%s\t ", TYPE_ASM_OP);				\
+    assemble_name (FILE, NAME);						\
+    putc (',', FILE);							\
+    fprintf (FILE, TYPE_OPERAND_FMT, "function");			\
+    putc ('\n', FILE);							\
+    ASM_DECLARE_RESULT (FILE, DECL_RESULT (DECL));			\
+    ASM_OUTPUT_LABEL(FILE, NAME);					\
+  } while (0)
+
+/* Write the extra assembler code needed to declare an object properly.  */
+
+#undef ASM_DECLARE_OBJECT_NAME
+#define ASM_DECLARE_OBJECT_NAME(FILE, NAME, DECL)			\
+  do {									\
+    ASM_EXPORT_DECL(FILE, NAME, DECL);					\
+    fprintf (FILE, "\t%s\t ", TYPE_ASM_OP);				\
+    assemble_name (FILE, NAME);						\
+    putc (',', FILE);							\
+    fprintf (FILE, TYPE_OPERAND_FMT, "object");				\
+    putc ('\n', FILE);							\
+    size_directive_output = 0;						\
+    if (!flag_inhibit_size_directive && DECL_SIZE (DECL))		\
+      {									\
+        size_directive_output = 1;					\
+        fprintf (FILE, "\t%s\t ", SIZE_ASM_OP);				\
+        assemble_name (FILE, NAME);					\
+        putc (',', FILE);						\
+        fprintf (FILE, HOST_WIDE_INT_PRINT_DEC,				\
+                 int_size_in_bytes (TREE_TYPE (DECL)));			\
+        fputc ('\n', FILE);						\
+      }									\
+    ASM_OUTPUT_LABEL(FILE, NAME);					\
+  } while (0)
+
+/* Similarly for COMMON symbols.  */
+
+#undef ASM_OUTPUT_ALIGNED_COMMON
+#undef ASM_OUTPUT_ALIGNED_DECL_COMMON
+#define ASM_OUTPUT_ALIGNED_DECL_COMMON(FILE, DECL, NAME, SIZE, ALIGN)	\
+  do {									\
+    ASM_EXPORT_DECL(FILE, NAME, DECL);					\
+    fprintf ((FILE), "\t%s\t", COMMON_ASM_OP);				\
+    assemble_name ((FILE), (NAME));					\
+    fprintf ((FILE), ",%u,%u\n", (SIZE), (ALIGN) / BITS_PER_UNIT);	\
+  } while (0)
+
+#undef ASM_OUTPUT_ALIGNED_LOCAL
+#undef ASM_OUTPUT_ALIGNED_DECL_LOCAL
+#define ASM_OUTPUT_ALIGNED_DECL_LOCAL(FILE, DECL, NAME, SIZE, ALIGN)	     \
+  do {									     \
+    fprintf ((FILE), "\t%s\t", LOCAL_ASM_OP);				     \
+    assemble_name ((FILE), (NAME));					     \
+    fprintf ((FILE), "\n");						     \
+    ASM_OUTPUT_ALIGNED_DECL_COMMON((FILE), (DECL), (NAME), (SIZE), (ALIGN)); \
+  } 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.  */
+/* Unused except to let winnt.c compile.  */
+
+#undef  STRIP_NAME_ENCODING
+#define STRIP_NAME_ENCODING(VAR,SYMBOL_NAME) ((VAR) = (SYMBOL_NAME))
+
+/* For native compiler, use standard BeOS include file search paths
+   rooted in /boot/develop/headers.  For a cross compiler, don't
+   expect the host to use the BeOS directory scheme, and instead look
+   for the BeOS include files relative to TOOL_INCLUDE_DIR.  Yes, we
+   use ANSI string concatenation here (FIXME) */
+
+#ifndef CROSS_COMPILE
+#undef INCLUDE_DEFAULTS
+#define INCLUDE_DEFAULTS \
+    { \
+    { GPLUSPLUS_INCLUDE_DIR, "G++", 1, 1 },\
+    { GCC_INCLUDE_DIR, "GCC", 0, 0 },\
+    { TOOL_INCLUDE_DIR, "BINUTILS", 0, 1}, \
+    { "/boot/develop/headers/be/add-ons/graphics", 0, 0, 0 },\
+    { "/boot/develop/headers/be/devel", 0, 0, 0 },\
+    { "/boot/develop/headers/be/translation", 0, 0, 0 },\
+    { "/boot/develop/headers/be/mail", 0, 0, 0 },\
+    { "/boot/develop/headers/gnu", 0, 0, 0 },\
+    { "/boot/develop/headers/be/drivers", 0, 0, 0 },\
+    { "/boot/develop/headers/be/opengl", 0, 0, 0 },\
+    { "/boot/develop/headers/be/game", 0, 0, 0 },\
+    { "/boot/develop/headers/be/support", 0, 0, 0 },\
+    { "/boot/develop/headers/be/storage", 0, 0, 0 },\
+    { "/boot/develop/headers/be/kernel", 0, 0, 0 },\
+    { "/boot/develop/headers/be/net", 0, 0, 0 },\
+    { "/boot/develop/headers/be/midi", 0, 0, 0 },\
+    { "/boot/develop/headers/be/media", 0, 0, 0 },\
+    { "/boot/develop/headers/be/interface", 0, 0, 0 },\
+    { "/boot/develop/headers/be/device", 0, 0, 0 },\
+    { "/boot/develop/headers/be/app", 0, 0, 0 },\
+    { "/boot/develop/headers/cpp", 0, 0, 0 },\
+    { "/boot/develop/headers/posix", 0, 0, 0 },\
+    { "/boot/develop/headers/be/precompiled", 0, 0, 0 },\
+    { "/boot/develop/headers/be", 0, 0, 0 },\
+    { "/boot/develop/headers", 0, 0, 0 }, \
+    { 0, 0, 0, 0 } \
+    };
+#else /* CROSS_COMPILE */
+#undef	INCLUDE_DEFAULTS
+#define INCLUDE_DEFAULTS				\
+    { \
+    { GPLUSPLUS_INCLUDE_DIR, "G++", 1, 1 },\
+    { GCC_INCLUDE_DIR, "GCC", 0, 0 },\
+    { TOOL_INCLUDE_DIR, "BINUTILS", 0, 1}, \
+    { CROSS_INCLUDE_DIR "/be/add-ons/graphics", 0, 0, 0 },\
+    { CROSS_INCLUDE_DIR "/be/devel", 0, 0, 0 },\
+    { CROSS_INCLUDE_DIR "/be/translation", 0, 0, 0 },\
+    { CROSS_INCLUDE_DIR "/be/mail", 0, 0, 0 },\
+    { CROSS_INCLUDE_DIR "/gnu", 0, 0, 0 },\
+    { CROSS_INCLUDE_DIR "/be/drivers", 0, 0, 0 },\
+    { CROSS_INCLUDE_DIR "/be/opengl", 0, 0, 0 },\
+    { CROSS_INCLUDE_DIR "/be/game", 0, 0, 0 },\
+    { CROSS_INCLUDE_DIR "/be/support", 0, 0, 0 },\
+    { CROSS_INCLUDE_DIR "/be/storage", 0, 0, 0 },\
+    { CROSS_INCLUDE_DIR "/be/kernel", 0, 0, 0 },\
+    { CROSS_INCLUDE_DIR "/be/net", 0, 0, 0 },\
+    { CROSS_INCLUDE_DIR "/be/midi", 0, 0, 0 },\
+    { CROSS_INCLUDE_DIR "/be/media", 0, 0, 0 },\
+    { CROSS_INCLUDE_DIR "/be/interface", 0, 0, 0 },\
+    { CROSS_INCLUDE_DIR "/be/device", 0, 0, 0 },\
+    { CROSS_INCLUDE_DIR "/be/app", 0, 0, 0 },\
+    { CROSS_INCLUDE_DIR "/cpp", 0, 0, 0 },\
+    { CROSS_INCLUDE_DIR "/posix", 0, 0, 0 },\
+    { CROSS_INCLUDE_DIR "/be/precompiled", 0, 0, 0 },\
+    { CROSS_INCLUDE_DIR "/be", 0, 0, 0 },\
+    { CROSS_INCLUDE_DIR , 0, 0, 0 }, \
+    { 0, 0, 0, 0 } \
+    };
+#endif
+
+/* Whee.  LIBRARY_PATH is Be's LD_LIBRARY_PATH, which of course will
+   cause nasty problems if we override it.  */
+#define LIBRARY_PATH_ENV        "BELIBRARIES"
+
+/* BeOS doesn't have a separate math library.  */
+#define MATH_LIBRARY ""
+
+/* BeOS headers are C++-aware (and often use C++).  */
+#define NO_IMPLICIT_EXTERN_C
+
+/* 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