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Add cygwin32; Put eabi .sdata2/.sbss2 into read-only memory

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From-SVN: r11162
This commit is contained in:
Michael Meissner 1996-02-03 01:03:27 +00:00
parent d787aad9e5
commit 3a2c1cd8d5
9 changed files with 347 additions and 5 deletions
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3
gcc/config.sub vendored
View file

@ -653,7 +653,8 @@ case $os in
| -hiux* | -386bsd* | -netbsd* | -freebsd* | -riscix* \
| -lynxos* | -bosx* | -nextstep* | -cxux* | -aout* | -elf* \
| -ptx* | -coff* | -ecoff* | -winnt* | -domain* | -vsta* \
| -udi* | -eabi* | -lites* | -ieee* | -go32* | -aux*)
| -udi* | -eabi* | -lites* | -ieee* | -go32* | -aux* \
| -cygwin32* | -pe*)
# Remember, each alternative MUST END IN *, to match a version number.
;;
-sunos5*)

32
gcc/config/i386/cygwin32.asm Normal file
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@ -0,0 +1,32 @@
/* stuff needed for libgcc1 on win32. */
#ifdef L_chkstk
.global ___chkstk
.global __alloca
___chkstk:
__alloca:
pushl %ecx /* save temp */
movl %esp,%ecx /* get sp */
addl $0x8,%ecx /* and point to return addr */
probe: cmpl $0x1000,%eax /* > 4k ?*/
jb done
subl $0x1000,%ecx /* yes, move pointer down 4k*/
orl $0x0,(%ecx) /* probe there */
subl $0x1000,%eax /* decrement count */
jmp probe /* and do it again */
done: subl %eax,%ecx
orl $0x0,(%ecx) /* less that 4k, just peek here */
movl %esp,%eax
movl %ecx,%esp /* decrement stack */
movl (%eax),%ecx /* recover saved temp */
movl 4(%eax),%eax /* get return address */
jmp *%eax
#endif

204
gcc/config/i386/cygwin32.h Normal file
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@ -0,0 +1,204 @@
/* Operating system specific defines to be used when targeting GCC for
hosting on Windows NT 3.x, using a unix style C library and tools.
This is different to the winnt.h file, since that is used
to build GCC for use with a windows style library and tool
set, winnt.h uses the Microsoft tools to do that.
Copyright (C) 1995 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. */
#define YES_UNDERSCORES
#include "i386/gas.h"
#ifdef CPP_PREDEFINES
#undef CPP_PREDEFINES
#endif
#define CPP_PREDEFINES "-Di386 -D__WIN32__ \
-DPOSIX -D__CYGWIN32__ -DWINNT -D_X86_=1 -D__STDC__=1\
-D__stdcall=__attribute__((__stdcall__)) \
-D__cdecl=__attribute__((__cdecl__)) \
-Asystem(winnt) -Acpu(i386) -Amachine(i386)"
/* We have to dynamic link to get to the system dlls,
and I've put all of libc and libm and the unix stuff into
cygwin.dll, the import library is called 'libcygwin.a' */
#undef LIB_SPEC
#define LIB_SPEC "-lcygwin"
/* No need for libgcc, it's in the shared library. */
#undef LIBGCC_SPEC
#define LIBGCC_SPEC ""
#undef STARTFILE_SPEC
#define STARTFILE_SPEC "%{!:crt0%O%s}"
#define SIZE_TYPE "unsigned int"
#define PTRDIFF_TYPE "int"
#define WCHAR_UNSIGNED 1
#define WCHAR_TYPE_SIZE 16
#define WCHAR_TYPE "short unsigned int"
#undef LONG_DOUBLE_TYPE_SIZE
#define LONG_DOUBLE_TYPE_SIZE 64
#define HAVE_ATEXIT 1
#undef EXTRA_SECTIONS
#define EXTRA_SECTIONS in_ctor, in_dtor
#undef EXTRA_SECTION_FUNCTIONS
#define EXTRA_SECTION_FUNCTIONS \
CTOR_SECTION_FUNCTION \
DTOR_SECTION_FUNCTION
#define CTOR_SECTION_FUNCTION \
void \
ctor_section () \
{ \
if (in_section != in_ctor) \
{ \
fprintf (asm_out_file, "\t.section .ctor\n"); \
in_section = in_ctor; \
} \
}
#define DTOR_SECTION_FUNCTION \
void \
dtor_section () \
{ \
if (in_section != in_dtor) \
{ \
fprintf (asm_out_file, "\t.section .dtor\n"); \
in_section = in_dtor; \
} \
}
#define ASM_OUTPUT_CONSTRUCTOR(FILE,NAME) \
do { \
ctor_section (); \
fprintf (FILE, "%s\t", ASM_LONG); \
assemble_name (FILE, NAME); \
fprintf (FILE, "\n"); \
} while (0)
#define ASM_OUTPUT_DESTRUCTOR(FILE,NAME) \
do { \
dtor_section (); \
fprintf (FILE, "%s\t", ASM_LONG); \
assemble_name (FILE, NAME); \
fprintf (FILE, "\n"); \
} while (0)
/* 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).
On i386, if using PIC, mark a SYMBOL_REF for a non-global symbol
so that we may access it directly in the GOT.
On i386 running Windows NT, modify the assembler name with a suffix
consisting of an atsign (@) followed by string of digits that represents
the number of bytes of arguments passed to the function, if it has the
attribute STDCALL. */
#ifdef ENCODE_SECTION_INFO
#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)
#endif
/* Emit code to check the stack when allocating more that 20
bytes in one go. */
#define CHECK_STACK_LIMIT 20
/* By default, target has a 80387, uses IEEE compatible arithmetic,
and returns float values in the 387 and needs stack probes */
#undef TARGET_DEFAULT
#define TARGET_DEFAULT \
(MASK_80387 | MASK_IEEE_FP | MASK_FLOAT_RETURNS | MASK_STACK_PROBE)
#define DBX_DEBUGGING_INFO
#define SDB_DEBUGGING_INFO
#define PREFERRED_DEBUGGING_TYPE DBX_DEBUG
/* 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. */
#define ASM_OUTPUT_SECTION_NAME(FILE, DECL, NAME) \
fprintf (FILE, "\t.section %s\n", NAME)
#undef ASM_OUTPUT_SOURCE_LINE
#define ASM_OUTPUT_SOURCE_LINE(file, line) \
do \
{ \
static int sym_lineno = 1; \
fprintf (file, "\t.stabn 68,0,%d,.LM%d-", \
line, sym_lineno); \
assemble_name (file, XSTR (XEXP (DECL_RTL (current_function_decl), 0), 0)); \
fprintf (file, "\n.LM%d:\n", sym_lineno); \
sym_lineno += 1; \
} \
while (0)
/* Generate a blank trailing N_SO to mark the end of the .o file, since
we can't depend upon the linker to mark .o file boundaries with
embedded stabs. */
#define DBX_OUTPUT_MAIN_SOURCE_FILE_END(FILE, FILENAME) \
fprintf (FILE, \
"\t.text\n\t.stabs \"\",%d,0,0,Letext\nLetext:\n", N_SO)
/* Make LBRAC and RBRAC addresses relative to the start of the
function. The native Solaris stabs debugging format works this
way, gdb expects it, and it reduces the number of relocation
entries. */
#define DBX_BLOCKS_FUNCTION_RELATIVE 1
/* In order for relative line numbers to work, we must output the
stabs entry for the function name first. */
#define DBX_FUNCTION_FIRST

9
gcc/config/i386/t-cygwin32 Normal file
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@ -0,0 +1,9 @@
# CYGNUS LOCAL entire file
LIBGCC1 = libgcc1-asm.a
CROSS_LIBGCC1 = libgcc1-asm.a
LIB1ASMSRC = i386/cygwin32.asm
LIB1ASMFUNCS = _chkstk
winnt.o: $(srcdir)/config/i386/winnt.c
$(CC) -I. -I$(srcdir) -I$(srcdir)/config -c $(srcdir)/config/i386/winnt.c

2
gcc/config/i386/x-cygwin32 Normal file
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@ -0,0 +1,2 @@
USE_COLLECT2 =
LANGUAGES=c c++ objective-c

30
gcc/config/i386/xm-cygwin32.h Normal file
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@ -0,0 +1,30 @@
/* Configuration for GNU C-compiler for hosting on Windows NT.
using a unix style C library.
Copyright (C) 1995 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. */
#define NO_STAB_H
#include "i386/xm-i386.h"
#define HAVE_STRERROR
#define HAVE_RUSAGE
#define HAVE_FILE_H

64
gcc/config/rs6000/cygwin32.h Normal file
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@ -0,0 +1,64 @@
/* Operating system specific defines to be used when targeting GCC for
hosting on Windows NT 3.x, using the Cygnus API
This is different to the winnt.h file, since that is used
to build GCC for use with a windows style library and tool
set, winnt.h uses the Microsoft tools to do that.
Copyright (C) 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, 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
/* Ugly hack */
#include "rs6000/win-nt.h"
#ifdef CPP_PREDEFINES
#undef CPP_PREDEFINES
#endif
#define CPP_PREDEFINES "-DWIN32 -D__WIN32__ -D__WINNT__ \
-D__CYGWIN32__ -DPOSIX \
-D_POWER -DPPC -Asystem(winnt) -Acpu(powerpc) -Amachine(powerpc)"
/* We have to dynamic link to get to the system dlls,
and I've put all of libc and libm and the unix stuff into
cygwin.dll, the import library is called 'libcygwin.a' */
#undef LIB_SPEC
#define LIB_SPEC "-lcygwin"
#undef LINK_SPEC
#define LINK_SPEC "%{V} %{v:%{!V:-V}}"
/* No need for libgcc, it's in the shared library. */
#undef LIBGCC_SPEC
#define LIBGCC_SPEC ""
#undef STARTFILE_SPEC
#define STARTFILE_SPEC "%{!:crt0%O%s}"
#define PTRDIFF_TYPE "int"
#define WCHAR_UNSIGNED 1
#define WCHAR_TYPE_SIZE 16
#define WCHAR_TYPE "short unsigned int"
/* XXX set up stack probing */

4
gcc/config/rs6000/eabi-ci.asm
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@ -85,7 +85,7 @@ _SDA_BASE_:
.type __SBSS_START__,@object
__SBSS_START__:
.section ".sdata2","aw"
.section ".sdata2","a"
.weak _SDA2_BASE_
.type _SDA2_BASE_,@object
.globl __SDATA2_START__
@ -93,7 +93,7 @@ __SBSS_START__:
__SDATA2_START__:
_SDA2_BASE_:
.section ".sbss2","aw"
.section ".sbss2","a",@nobits
.globl __SBSS2_START__
.type __SBSS2_START__,@object
__SBSS2_START__:

4
gcc/config/rs6000/eabi-cn.asm
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@ -79,12 +79,12 @@ __SDATA_END__:
.type __SBSS_END__,@object
__SBSS_END__:
.section ".sdata2","aw"
.section ".sdata2","a"
.globl __SDATA2_END__
.type __SDATA2_END__,@object
__SDATA2_END__:
.section ".sbss2","aw"
.section ".sbss2","a"
.globl __SBSS2_END__
.type __SBSS2_END__,@object
__SBSS2_END__: