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[PATCH 5/6] [DJGPP] Update DJGPP configuration related files 

* config/i386/djgpp.h (PREFERRED_DEBUGGING_TYPE): Define to DWARF2
       (TARGET_ASM_OUTPUT_IDENT): Define to default_asm_output_ident_directive
       (MD_EXEC_PREFIX): Remove.
       (MD_STARTFILE_PREFIX) Removee.
       (FILE_NAME_ABSOLUTE_P): Remove.
       (CPP_SPEC): Do not read macros from sys/version.h.
       (LINK_COMMAND_SPEC): Remove.
       (LOCAL_INCLUDE_DIR): Remove.
       (TARGET_ASM_NAMED_SECTION): Define to i386_djgpp_asm_named_section
       (TARGET_OS_CPP_BUILTINS): Add DJGPP (non ISO only), __DJGPP, __DJGPP__, unix.
       (POST_LINK_SPEC): Define to invoke stubify after linker
       (LIBSTDCXX): Remove define
       (DBX_REGISTER_NUMBER): Define to svr4_dbx_register_map.
       (DEFAULT_PCC_STRUCT_RETURN): Define to 1.
       (SUBTARGET_OVERRIDE_OPTIONS): Remove warning about -mbnu2210.
       (SUBTARGET_OVERRIDE_OPTIONS): Ignore -fPIC and generate message.
       (SUBTARGET_OVERRIDE_OPTIONS): Default to DWARF2 debugging info.
       (IX86_MAYBE_NO_LIBGCC_TFMODE): Remove.
       (i386_djgpp_asm_named_section): Add propotype of new procedure

       * config/i386/xm-djgpp.h (NATIVE_SYSTEM_HEADER_DIR): Define.
       (MD_EXEC_PREFIX): Define (moved from config/i386/djgpp.h).
       (STANDARD_STARTFILE_PREFIX_1): Define (moved from MD_STARTFILE_PREFIX in config/i386/djgpp.h).
       (STANDARD_STARTFILE_PREFIX_2): Define identical to STANDARD_STARTFILE_PREFIX_1.
       (LOCAL_INCLUDE_DIR): Define (moved from config/i386/djgpp.h).
       (GCC_DRIVER_HOST_INITIALIZATION): Fix reporting fatal installation errors.
       (MAX_OFILE_ALIGNMENT): Define to 128.
       (HAVE_FTW_H): Undefine as DJGPP do not have nftw, but have ftw.h.

       * config/i386/djgpp.c: New file. Add implementation of i386_djgpp_asm_named_section.

       * config/i386/djgpp.opt: Remove obsolete option -mbnu210.

       * config/i386/t-djgpp: New file. Add djgpp.o to EXTRA_OBJS.
       Add rule for building djgpp.o.

From-SVN: r232258
This commit is contained in:
Andris Pavenis 2016-01-12 06:57:10 +02:00 committed by Andris Pavenis
parent 3574cf47fa
commit 3df6ff355f
7 changed files with 176 additions and 68 deletions
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38
gcc/ChangeLog
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@ -1,3 +1,41 @@
2016-01-12 Andris Pavenis <andris.pavenis@iki.fi>
* config/i386/djgpp.h (PREFERRED_DEBUGGING_TYPE): Define to DWARF2
(TARGET_ASM_OUTPUT_IDENT): Define to default_asm_output_ident_directive
(MD_EXEC_PREFIX): Remove.
(MD_STARTFILE_PREFIX) Removee.
(FILE_NAME_ABSOLUTE_P): Remove.
(CPP_SPEC): Do not read macros from sys/version.h.
(LINK_COMMAND_SPEC): Remove.
(LOCAL_INCLUDE_DIR): Remove.
(TARGET_ASM_NAMED_SECTION): Define to i386_djgpp_asm_named_section
(TARGET_OS_CPP_BUILTINS): Add DJGPP (non ISO only), __DJGPP, __DJGPP__, unix.
(POST_LINK_SPEC): Define to invoke stubify after linker
(LIBSTDCXX): Remove define
(DBX_REGISTER_NUMBER): Define to svr4_dbx_register_map.
(DEFAULT_PCC_STRUCT_RETURN): Define to 1.
(SUBTARGET_OVERRIDE_OPTIONS): Remove warning about -mbnu2210.
(SUBTARGET_OVERRIDE_OPTIONS): Ignore -fPIC and generate message.
(SUBTARGET_OVERRIDE_OPTIONS): Default to DWARF2 debugging info.
(IX86_MAYBE_NO_LIBGCC_TFMODE): Remove.
(i386_djgpp_asm_named_section): Add propotype of new procedure
* config/i386/xm-djgpp.h (NATIVE_SYSTEM_HEADER_DIR): Define.
(MD_EXEC_PREFIX): Define (moved from config/i386/djgpp.h).
(STANDARD_STARTFILE_PREFIX_1): Define (moved from MD_STARTFILE_PREFIX in config/i386/djgpp.h).
(STANDARD_STARTFILE_PREFIX_2): Define identical to STANDARD_STARTFILE_PREFIX_1.
(LOCAL_INCLUDE_DIR): Define (moved from config/i386/djgpp.h).
(GCC_DRIVER_HOST_INITIALIZATION): Fix reporting fatal installation errors.
(MAX_OFILE_ALIGNMENT): Define to 128.
(HAVE_FTW_H): Undefine as DJGPP do not have nftw, but have ftw.h.
* config/i386/djgpp.c: New file. Add implementation of i386_djgpp_asm_named_section.
* config/i386/djgpp.opt: Remove obsolete option -mbnu210.
* config/i386/t-djgpp: New file. Add djgpp.o to EXTRA_OBJS.
Add rule for building djgpp.o.
2016-01-11 Bill Schmidt <wschmidt@linux.vnet.ibm.com>
* config/rs6000/rs6000.c (v2df_reduction_p): New function.

3
gcc/config.gcc
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@ -4392,6 +4392,9 @@ case ${target} in
i[34567]86-*-gnu*)
tmake_file="$tmake_file i386/t-gnu"
;;
i[34567]86-*-msdosdjgpp*)
tmake_file="${tmake_file} i386/t-djgpp"
;;
i[34567]86-*-solaris2* | x86_64-*-solaris2.1[0-9]*)
;;
i[34567]86-*-cygwin* | x86_64-*-cygwin*)

47
gcc/config/i386/djgpp.c Normal file
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@ -0,0 +1,47 @@
/* Subroutines for DJGPP.
Copyright (C) 2013-2016 Free Software Foundation, Inc.
This file is part of GCC.
GCC 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 3, or (at your option) any later
version.
GCC 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 GCC; see the file COPYING3. If not see
<http://www.gnu.org/licenses/>. */
#include "config.h"
#include "system.h"
#include "coretypes.h"
#include "tm.h"
#include "output.h"
#include "lto-section-names.h"
void
i386_djgpp_asm_named_section(const char *name, unsigned int flags,
tree)
{
char flagchars[8], *f = flagchars;
if (flags & SECTION_WRITE)
*f++ = 'w';
if (flags & SECTION_CODE)
*f++ = 'x';
/* LTO sections need 1-byte alignment to avoid confusing the
zlib decompression algorithm with trailing zero pad bytes. */
if (strncmp (name, LTO_SECTION_NAME_PREFIX,
strlen (LTO_SECTION_NAME_PREFIX)) == 0)
*f++ = '0';
*f++ = '\0';
fprintf (asm_out_file, "\t.section\t%s,\"%s\"\n", name, flagchars);
}

102
gcc/config/i386/djgpp.h
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@ -20,6 +20,9 @@ along with GCC; see the file COPYING3. If not see
/* Support generation of DWARF2 debugging info. */
#define DWARF2_DEBUGGING_INFO 1
#undef PREFERRED_DEBUGGING_TYPE
#define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG
/* Don't assume anything about the header files. */
#define NO_IMPLICIT_EXTERN_C
@ -30,6 +33,10 @@ along with GCC; see the file COPYING3. If not see
#undef DATA_SECTION_ASM_OP
#define DATA_SECTION_ASM_OP "\t.section .data"
/* Define the name of the .ident op. */
#undef TARGET_ASM_OUTPUT_IDENT
#define TARGET_ASM_OUTPUT_IDENT default_asm_output_ident_directive
/* Enable alias attribute support. */
#ifndef SET_ASM_OP
#define SET_ASM_OP "\t.set\t"
@ -39,56 +46,25 @@ along with GCC; see the file COPYING3. If not see
#undef TEXT_SECTION_ASM_OP
#define TEXT_SECTION_ASM_OP "\t.section .text"
/* Define standard DJGPP installation paths. */
/* We override default /usr or /usr/local part with /dev/env/DJDIR which */
/* points to actual DJGPP installation directory. */
/* Search for as.exe and ld.exe in DJGPP's binary directory. */
#undef MD_EXEC_PREFIX
#define MD_EXEC_PREFIX "/dev/env/DJDIR/bin/"
/* Standard DJGPP library and startup files */
#undef MD_STARTFILE_PREFIX
#define MD_STARTFILE_PREFIX "/dev/env/DJDIR/lib/"
/* Correctly handle absolute filename detection in cp/xref.c */
#define FILE_NAME_ABSOLUTE_P(NAME) \
(((NAME)[0] == '/') || ((NAME)[0] == '\\') || \
(((NAME)[0] >= 'A') && ((NAME)[0] <= 'z') && ((NAME)[1] == ':')))
#define TARGET_OS_CPP_BUILTINS() \
do \
{ \
if (!flag_iso) \
builtin_define_with_int_value ("DJGPP",2); \
builtin_define_with_int_value ("__DJGPP",2); \
builtin_define_with_int_value ("__DJGPP__",2); \
builtin_define_std ("MSDOS"); \
builtin_define_std ("GO32"); \
builtin_define_std ("unix"); \
builtin_assert ("system=msdos"); \
} \
while (0)
/* Include <sys/version.h> so __DJGPP__ and __DJGPP_MINOR__ are defined. */
#undef CPP_SPEC
#define CPP_SPEC "-remap %{posix:-D_POSIX_SOURCE} \
-imacros %s../include/sys/version.h"
#define CPP_SPEC "-remap %{posix:-D_POSIX_SOURCE}"
/* We need to override link_command_spec in gcc.c so support -Tdjgpp.djl.
This cannot be done in LINK_SPECS as that LINK_SPECS is processed
before library search directories are known by the linker.
This avoids problems when specs file is not available. An alternate way,
suggested by Robert Hoehne, is to use SUBTARGET_EXTRA_SPECS instead.
*/
#undef LINK_COMMAND_SPEC
#define LINK_COMMAND_SPEC \
"%{!fsyntax-only: \
%{!c:%{!M:%{!MM:%{!E:%{!S:%(linker) %l " LINK_COMPRESS_DEBUG_SPEC \
"%X %{o*} %{e*} %{N} %{n} \
\t%{r} %{s} %{t} %{u*} %{z} %{Z}\
\t%{!nostdlib:%{!nostartfiles:%S}}\
\t%{static:} %{L*} %D %o\
\t%{!nostdlib:%{!nodefaultlibs:%G %L %G}}\
\t%{!nostdlib:%{!nostartfiles:%E}}\
\t-Tdjgpp.djl %{T*}}}}}}}\n\
%{!c:%{!M:%{!MM:%{!E:%{!S:stubify %{v} %{o*:%*} %{!o*:a.out} }}}}}"
#undef POST_LINK_SPEC
#define POST_LINK_SPEC "stubify %{v} %{o*:%*} %{!o*:a.out}"
/* Always just link in 'libc.a'. */
#undef LIB_SPEC
@ -98,12 +74,8 @@ along with GCC; see the file COPYING3. If not see
#undef STARTFILE_SPEC
#define STARTFILE_SPEC "%{pg:gcrt0.o%s}%{!pg:crt0.o%s}"
/* Make sure that gcc will not look for .h files in /usr/local/include
unless user explicitly requests it. */
#undef LOCAL_INCLUDE_DIR
/* Switch into a generic section. */
#define TARGET_ASM_NAMED_SECTION default_coff_asm_named_section
#define TARGET_ASM_NAMED_SECTION i386_djgpp_asm_named_section
/* This is how to output an assembler line
that says to advance the location counter
@ -159,23 +131,37 @@ along with GCC; see the file COPYING3. If not see
#undef PTRDIFF_TYPE
#define PTRDIFF_TYPE "int"
/* Used to be defined in xm-djgpp.h, but moved here for cross-compilers. */
#define LIBSTDCXX "stdcxx"
#undef DBX_REGISTER_NUMBER
#define DBX_REGISTER_NUMBER(n) svr4_dbx_register_map[n]
/* Warn that -mbnu210 is now obsolete. */
#undef SUBTARGET_OVERRIDE_OPTIONS
#define SUBTARGET_OVERRIDE_OPTIONS \
do \
{ \
if (TARGET_BNU210) \
{ \
warning (0, "-mbnu210 is ignored (option is obsolete)"); \
} \
} \
while (0)
/* Default to pcc-struct-return. */
#define DEFAULT_PCC_STRUCT_RETURN 1
/* Ignore (with warning) -fPIC for DJGPP */
#undef SUBTARGET_OVERRIDE_OPTIONS
#define SUBTARGET_OVERRIDE_OPTIONS \
do { \
if (flag_pic) \
{ \
fnotice(stdout, "-f%s ignored (not supported for DJGPP)\n", \
(flag_pic > 1) ? "PIC" : "pic"); \
flag_pic = 0; \
} \
\
/* Don't emit DWARF3/4 unless specifically selected. */ \
/* DWARF3/4 currently does not work for DJGPP. */ \
if (!global_options_set.x_dwarf_version) \
dwarf_version = 2; \
\
} \
while (0)
/* Support for C++ templates. */
#undef MAKE_DECL_ONE_ONLY
#define MAKE_DECL_ONE_ONLY(DECL) (DECL_WEAK (DECL) = 1)
#define IX86_MAYBE_NO_LIBGCC_TFMODE
/* Function protypes for gcc/i386/djgpp.c */
void
i386_djgpp_asm_named_section(const char *name, unsigned int flags,
tree decl);

6
gcc/config/i386/djgpp.opt
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@ -18,11 +18,5 @@
; along with GCC; see the file COPYING3. If not see
; <http://www.gnu.org/licenses/>.
;; -mbnu210 is now ignored and obsolete. It was used to enable support for
;; weak symbols, and .gnu.linkonce support.
mbnu210
Target Var(TARGET_BNU210)
Ignored (obsolete).
posix
Driver

8
gcc/config/i386/t-djgpp Normal file
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@ -0,0 +1,8 @@
EXTRA_OBJS += djgpp.o
djgpp.o: $(srcdir)/config/i386/djgpp.c $(CONFIG_H) $(SYSTEM_H) coretypes.h \
$(TM_H) $(RTL_H) $(REGS_H) hard-reg-set.h output.h $(TREE_H) flags.h \
$(TM_P_H) $(HASH_TABLE_H) $(GGC_H) $(LTO_STREAMER_H)
$(COMPILER) -c $(ALL_COMPILERFLAGS) $(ALL_CPPFLAGS) $(INCLUDES) \
$(srcdir)/config/i386/djgpp.c

40
gcc/config/i386/xm-djgpp.h
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@ -22,6 +22,31 @@ along with GCC; see the file COPYING3. If not see
#define HOST_EXECUTABLE_SUFFIX ".exe"
/* Define standard DJGPP installation paths. */
/* We override default /usr or /usr/local part with /dev/env/DJDIR which */
/* points to actual DJGPP installation directory. */
/* Native system include directory */
#undef NATIVE_SYSTEM_HEADER_DIR
#define NATIVE_SYSTEM_HEADER_DIR "/dev/env/DJDIR/include/"
/* Search for as.exe and ld.exe in DJGPP's binary directory. */
#undef MD_EXEC_PREFIX
#define MD_EXEC_PREFIX "/dev/env/DJDIR/bin/"
/* Standard DJGPP library and startup files */
#undef STANDARD_STARTFILE_PREFIX_1
#define STANDARD_STARTFILE_PREFIX_1 "/dev/env/DJDIR/lib/"
/* Define STANDARD_STARTFILE_PREFIX_2 equal to STANDARD_STARTFILE_PREFIX_1
to avoid gcc.c redefining it to /usr/lib */
#undef STANDARD_STARTFILE_PREFIX_2
#define STANDARD_STARTFILE_PREFIX_1 "/dev/env/DJDIR/lib/"
/* Make sure that gcc will not look for .h files in /usr/local/include
unless user explicitly requests it. */
#undef LOCAL_INCLUDE_DIR
/* System dependent initialization for collect2
to tell system() to act like Unix. */
#define COLLECT2_HOST_INITIALIZATION \
@ -57,12 +82,12 @@ along with GCC; see the file COPYING3. If not see
to try and figure out what's wrong. */ \
char *djgpp = getenv ("DJGPP"); \
if (djgpp == NULL) \
fatal ("environment variable DJGPP not defined"); \
fatal_error (UNKNOWN_LOCATION, "environment variable DJGPP not defined"); \
else if (access (djgpp, R_OK) == 0) \
fatal ("environment variable DJGPP points to missing file '%s'", \
fatal_error (UNKNOWN_LOCATION, "environment variable DJGPP points to missing file '%s'", \
djgpp); \
else \
fatal ("environment variable DJGPP points to corrupt file '%s'", \
fatal_error (UNKNOWN_LOCATION, "environment variable DJGPP points to corrupt file '%s'", \
djgpp); \
} \
} while (0)
@ -80,4 +105,11 @@ along with GCC; see the file COPYING3. If not see
_fixpath ((PATH), fixed_path); \
strcat (fixed_path, "/"); \
(PATH) = xstrdup (fixed_path); \
}
}
#undef MAX_OFILE_ALIGNMENT
#define MAX_OFILE_ALIGNMENT 128
/* DJGPP versions up to current (2.05) have ftw.h but only ftw() not nftw().
Disable use of ftw.h */
#undef HAVE_FTW_H