diff mbox series

[v2,08/13] aarch64: Add Cygwin and MinGW environments for AArch64

Message ID VI1PR83MB0431720FF1362C06760938D0F8232@VI1PR83MB0431.EURPRD83.prod.outlook.com
State New
Headers show
Series Add aarch64-w64-mingw32 target | expand

Commit Message

Evgeny Karpov March 4, 2024, 5:44 p.m. UTC
From: Zac Walker <zacwalker@microsoft.com>
Date: Fri, 1 Mar 2024 10:49:28 +0100
Subject: [PATCH v2 08/13] aarch64: Add Cygwin and MinGW environments for
 AArch64

Define Cygwin and MinGW environment such as types, SEH definitions,
shared libraries, etc.

gcc/ChangeLog:

	* config.gcc: Add Cygwin and MinGW difinitions.
	* config/aarch64/aarch64-protos.h
	(mingw_pe_maybe_record_exported_symbol): Declare functions
	which are used in Cygwin and MinGW environment.
	(mingw_pe_section_type_flags): Likewise.
	(mingw_pe_unique_section): Likewise.
	(mingw_pe_encode_section_info): Likewise.
	* config/aarch64/cygming.h: New file.
---
 gcc/config.gcc                      |   4 +
 gcc/config/aarch64/aarch64-protos.h |   5 +
 gcc/config/aarch64/cygming.h        | 175 ++++++++++++++++++++++++++++
 3 files changed, 184 insertions(+)
 create mode 100644 gcc/config/aarch64/cygming.h

Comments

Christophe Lyon March 18, 2024, 1:26 p.m. UTC | #1
Hi!

On Mon, 4 Mar 2024 at 18:44, Evgeny Karpov <Evgeny.Karpov@microsoft.com> wrote:
>
> From: Zac Walker <zacwalker@microsoft.com>
> Date: Fri, 1 Mar 2024 10:49:28 +0100
> Subject: [PATCH v2 08/13] aarch64: Add Cygwin and MinGW environments for
>  AArch64
>
> Define Cygwin and MinGW environment such as types, SEH definitions,
> shared libraries, etc.
>
> gcc/ChangeLog:
>
>         * config.gcc: Add Cygwin and MinGW difinitions.
>         * config/aarch64/aarch64-protos.h
>         (mingw_pe_maybe_record_exported_symbol): Declare functions
>         which are used in Cygwin and MinGW environment.
>         (mingw_pe_section_type_flags): Likewise.
>         (mingw_pe_unique_section): Likewise.
>         (mingw_pe_encode_section_info): Likewise.
>         * config/aarch64/cygming.h: New file.
> ---
>  gcc/config.gcc                      |   4 +
>  gcc/config/aarch64/aarch64-protos.h |   5 +
>  gcc/config/aarch64/cygming.h        | 175 ++++++++++++++++++++++++++++
>  3 files changed, 184 insertions(+)
>  create mode 100644 gcc/config/aarch64/cygming.h
>
> diff --git a/gcc/config.gcc b/gcc/config.gcc
> index 3aca257c322..4471599454b 100644
> --- a/gcc/config.gcc
> +++ b/gcc/config.gcc
> @@ -1267,7 +1267,11 @@ aarch64*-*-linux*)
>  aarch64-*-mingw*)
>         tm_file="${tm_file} aarch64/aarch64-abi-ms.h"
>         tm_file="${tm_file} aarch64/aarch64-coff.h"
> +       tm_file="${tm_file} aarch64/cygming.h"
> +       tm_file="${tm_file} mingw/mingw32.h"
> +       tm_file="${tm_file} mingw/mingw-stdint.h"
>         tmake_file="${tmake_file} aarch64/t-aarch64"
> +       target_gtfiles="$target_gtfiles \$(srcdir)/config/mingw/winnt.cc"
>         case ${enable_threads} in
>           "" | yes | win32)
>             thread_file='win32'
> diff --git a/gcc/config/aarch64/aarch64-protos.h b/gcc/config/aarch64/aarch64-protos.h
> index bd719b992a5..759e1a0f9da 100644
> --- a/gcc/config/aarch64/aarch64-protos.h
> +++ b/gcc/config/aarch64/aarch64-protos.h
> @@ -1110,6 +1110,11 @@ extern void aarch64_output_patchable_area (unsigned int, bool);
>
>  extern void aarch64_adjust_reg_alloc_order ();
>
> +extern void mingw_pe_maybe_record_exported_symbol (tree, const char *, int);
> +extern unsigned int mingw_pe_section_type_flags (tree, const char *, int);
> +extern void mingw_pe_unique_section (tree, int);
> +extern void mingw_pe_encode_section_info (tree, rtx, int);
> +
>  bool aarch64_optimize_mode_switching (aarch64_mode_entity);
>  void aarch64_restore_za (rtx);
>
> diff --git a/gcc/config/aarch64/cygming.h b/gcc/config/aarch64/cygming.h
> new file mode 100644
> index 00000000000..2f239c42a89
> --- /dev/null
> +++ b/gcc/config/aarch64/cygming.h
> @@ -0,0 +1,175 @@
> +/* Operating system specific defines to be used when targeting GCC for
> +   hosting on Windows32, using a Unix style C library and tools.
> +   Copyright (C) 1995-2024 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/>.  */
> +
> +#ifndef GCC_AARCH64_CYGMING_H
> +#define GCC_AARCH64_CYGMING_H
> +
> +#undef PREFERRED_DEBUGGING_TYPE
> +#define PREFERRED_DEBUGGING_TYPE DINFO_TYPE_NONE
> +
> +#define FASTCALL_PREFIX '@'
> +
> +#define print_reg(rtx, code, file)
> +
> +#define SYMBOL_FLAG_DLLIMPORT 0
> +#define SYMBOL_FLAG_DLLEXPORT 0
> +
> +#define SYMBOL_REF_DLLEXPORT_P(X) \
> +       ((SYMBOL_REF_FLAGS (X) & SYMBOL_FLAG_DLLEXPORT) != 0)
> +
> +/* Disable SEH and declare the required SEH-related macros that are
> +still needed for compilation.  */
> +#undef TARGET_SEH
> +#define TARGET_SEH 0
> +
> +#define SSE_REGNO_P(N) 0
> +#define GENERAL_REGNO_P(N) 0
I think you forgot to add a comment to explain the above two lines.
(it was requested during v1 review)

Thanks,

Christophe

> +#define SEH_MAX_FRAME_SIZE 0
> +
> +#undef DEFAULT_ABI
> +#define DEFAULT_ABI AARCH64_CALLING_ABI_MS
> +
> +#undef TARGET_PECOFF
> +#define TARGET_PECOFF 1
> +
> +#include <stdbool.h>
> +#ifdef __MINGW32__
> +#include <stdio.h>
> +#endif
> +
> +extern void mingw_pe_asm_named_section (const char *, unsigned int, tree);
> +extern void mingw_pe_declare_function_type (FILE *file, const char *name,
> +       int pub);
> +
> +#define TARGET_ASM_NAMED_SECTION  mingw_pe_asm_named_section
> +
> +/* Select attributes for named sections.  */
> +#define TARGET_SECTION_TYPE_FLAGS  mingw_pe_section_type_flags
> +
> +#define TARGET_ASM_UNIQUE_SECTION mingw_pe_unique_section
> +#define TARGET_ENCODE_SECTION_INFO  mingw_pe_encode_section_info
> +
> +/* Declare the type properly for any external libcall.  */
> +#define ASM_OUTPUT_EXTERNAL_LIBCALL(FILE, FUN) \
> +  mingw_pe_declare_function_type (FILE, XSTR (FUN, 0), 1)
> +
> +#define TARGET_OS_CPP_BUILTINS()                                       \
> +  do                                                                   \
> +    {                                                                  \
> +      builtin_define ("__MSVCRT__");                                   \
> +      builtin_define ("__MINGW32__");                                  \
> +      builtin_define ("_WIN32");                                       \
> +      builtin_define_std ("WIN32");                                    \
> +      builtin_define_std ("WINNT");                                    \
> +      builtin_define_with_int_value ("_INTEGRAL_MAX_BITS",             \
> +                               TYPE_PRECISION (intmax_type_node));     \
> +      builtin_define ("__MINGW64__");                                  \
> +      builtin_define_std ("WIN64");                                    \
> +      builtin_define ("_WIN64");                                       \
> +      builtin_define ("__stdcall=__attribute__((__stdcall__))");       \
> +      builtin_define ("__fastcall=__attribute__((__fastcall__))");     \
> +      builtin_define ("__thiscall=__attribute__((__thiscall__))");     \
> +      builtin_define ("__cdecl=__attribute__((__cdecl__))");           \
> +    }                                                                  \
> +  while (0)
> +
> +/* Windows64 continues to use a 32-bit long type.  */
> +#undef LONG_TYPE_SIZE
> +#define LONG_TYPE_SIZE 32
> +
> +#undef DEFAULT_SIGNED_CHAR
> +#define DEFAULT_SIGNED_CHAR 1
> +
> +#undef SIZE_TYPE
> +#undef PTRDIFF_TYPE
> +#define SIZE_TYPE "long long unsigned int"
> +#define PTRDIFF_TYPE "long long int"
> +
> +#undef WCHAR_TYPE_SIZE
> +#undef WCHAR_TYPE
> +#define WCHAR_TYPE_SIZE 16
> +#define WCHAR_TYPE "short unsigned int"
> +
> +#define drectve_section() \
> +  (fprintf (asm_out_file, "\t.section\t.drectve\n"), \
> +   in_section = NULL)
> +
> +
> +/* Enable alias attribute support.  */
> +#ifndef SET_ASM_OP
> +#define SET_ASM_OP "\t.set\t"
> +#endif
> +
> +/* GNU as supports weak symbols on PECOFF.  */
> +#define ASM_WEAKEN_LABEL(FILE, NAME)   \
> +  do                                   \
> +    {                                  \
> +      fputs ("\t.weak\t", (FILE));     \
> +      assemble_name ((FILE), (NAME));  \
> +      fputc ('\n', (FILE));            \
> +    }                                  \
> +  while (0)
> +
> +/* Get tree.cc to declare a target-specific specialization of
> +   merge_decl_attributes.  */
> +#define TARGET_DLLIMPORT_DECL_ATTRIBUTES 1
> +
> +#define ASM_OUTPUT_ADDR_DIFF_ELT(STREAM, BODY, VALUE, REL)             \
> +  do {                                                                 \
> +    switch (GET_MODE (BODY))                                           \
> +      {                                                                        \
> +      case E_QImode:                                                   \
> +       asm_fprintf (STREAM, "\t.byte\t(%LL%d - %LLrtx%d) / 4\n",       \
> +                    VALUE, REL);                                       \
> +       break;                                                          \
> +      case E_HImode:                                                   \
> +       asm_fprintf (STREAM, "\t.2byte\t(%LL%d - %LLrtx%d) / 4\n",      \
> +                    VALUE, REL);                                       \
> +       break;                                                          \
> +      case E_SImode:                                                   \
> +      case E_DImode: /* See comment in aarch64_output_casesi.  */      \
> +       asm_fprintf (STREAM, "\t.word\t(%LL%d - %LLrtx%d) / 4\n",       \
> +                    VALUE, REL);                                       \
> +       break;                                                          \
> +      default:                                                         \
> +       gcc_unreachable ();                                             \
> +      }                                                                        \
> +  } while (0)
> +
> +#define READONLY_DATA_SECTION_ASM_OP "\t.section\t.rdata,\"dr\""
> +
> +#undef  SUBTARGET_OVERRIDE_OPTIONS
> +#define SUBTARGET_OVERRIDE_OPTIONS                     \
> +  do {                                                 \
> +    flag_stack_check = STATIC_BUILTIN_STACK_CHECK;     \
> +  } while (0)
> +
> +
> +#define SUPPORTS_ONE_ONLY 1
> +
> +/* Define this to be nonzero if static stack checking is supported.  */
> +#define STACK_CHECK_STATIC_BUILTIN 1
> +
> +#define HAVE_GAS_ALIGNED_COMM 1
> +
> +#undef MAX_OFILE_ALIGNMENT
> +#define MAX_OFILE_ALIGNMENT (8192 * 8)
> +
> +#endif
> --
> 2.25.1
>
Evgeny Karpov March 18, 2024, 9:35 p.m. UTC | #2
Monday, March 18, 2024 2:27 PM
Christophe Lyon wrote: 

> > +/* Disable SEH and declare the required SEH-related macros that are
> > +still needed for compilation.  */ #undef TARGET_SEH #define
> > +TARGET_SEH 0
> > +
> > +#define SSE_REGNO_P(N) 0
> > +#define GENERAL_REGNO_P(N) 0
> I think you forgot to add a comment to explain the above two lines.
> (it was requested during v1 review)
> 
> Thanks,
> 
> Christophe

Hi Christophe,

Thank you for the review!
The comment regarding SEH and SEH-related macros has been added two lines above.
It may not be obvious, but these macros are needed to emit SEH data in mingw/winnt.cc.
This group is separated by an empty line; however, it still relates to SEH-related macros.

Regards,
Evgeny
Christophe Lyon March 19, 2024, 1:40 p.m. UTC | #3
On Mon, 18 Mar 2024 at 22:35, Evgeny Karpov <Evgeny.Karpov@microsoft.com> wrote:
>
> Monday, March 18, 2024 2:27 PM
> Christophe Lyon wrote:
>
> > > +/* Disable SEH and declare the required SEH-related macros that are
> > > +still needed for compilation.  */ #undef TARGET_SEH #define
> > > +TARGET_SEH 0
> > > +
> > > +#define SSE_REGNO_P(N) 0
> > > +#define GENERAL_REGNO_P(N) 0
> > I think you forgot to add a comment to explain the above two lines.
> > (it was requested during v1 review)
> >
> > Thanks,
> >
> > Christophe
>
> Hi Christophe,
>
> Thank you for the review!
> The comment regarding SEH and SEH-related macros has been added two lines above.
> It may not be obvious, but these macros are needed to emit SEH data in mingw/winnt.cc.
> This group is separated by an empty line; however, it still relates to SEH-related macros.
>
Thanks for the clarification, I thought that comment only applied to
the two lines about TARGET_SEH.

Christophe

> Regards,
> Evgeny
Bernhard Reutner-Fischer March 20, 2024, 9:53 p.m. UTC | #4
On 19 March 2024 14:40:57 CET, Christophe Lyon <christophe.lyon@linaro.org> wrote:
>On Mon, 18 Mar 2024 at 22:35, Evgeny Karpov <Evgeny.Karpov@microsoft.com> wrote:
>>
>> Monday, March 18, 2024 2:27 PM
>> Christophe Lyon wrote:
>>
>> > > +/* Disable SEH and declare the required SEH-related macros that are
>> > > +still needed for compilation.  */ #undef TARGET_SEH #define
>> > > +TARGET_SEH 0
>> > > +
>> > > +#define SSE_REGNO_P(N) 0
>> > > +#define GENERAL_REGNO_P(N) 0
>> > I think you forgot to add a comment to explain the above two lines.
>> > (it was requested during v1 review)
>> >
>> > Thanks,
>> >
>> > Christophe
>>
>> Hi Christophe,
>>
>> Thank you for the review!
>> The comment regarding SEH and SEH-related macros has been added two lines above.
>> It may not be obvious, but these macros are needed to emit SEH data in mingw/winnt.cc.
>> This group is separated by an empty line; however, it still relates to SEH-related macros.
>>
>Thanks for the clarification, I thought that comment only applied to
>the two lines about TARGET_SEH.

So, for avoidance of doubt, please drop the vertical space before SSE_REGNO_P to be gentle to the casual/inattentive reader?

Or add /* SEH-related */ after the vertical space, to make it clear?

thanks
Richard Sandiford April 10, 2024, 6:34 p.m. UTC | #5
Evgeny Karpov <Evgeny.Karpov@microsoft.com> writes:
> From: Zac Walker <zacwalker@microsoft.com>
> Date: Fri, 1 Mar 2024 10:49:28 +0100
> Subject: [PATCH v2 08/13] aarch64: Add Cygwin and MinGW environments for
>  AArch64
>
> Define Cygwin and MinGW environment such as types, SEH definitions,
> shared libraries, etc.
>
> gcc/ChangeLog:
>
> 	* config.gcc: Add Cygwin and MinGW difinitions.
> 	* config/aarch64/aarch64-protos.h
> 	(mingw_pe_maybe_record_exported_symbol): Declare functions
> 	which are used in Cygwin and MinGW environment.
> 	(mingw_pe_section_type_flags): Likewise.
> 	(mingw_pe_unique_section): Likewise.
> 	(mingw_pe_encode_section_info): Likewise.
> 	* config/aarch64/cygming.h: New file.
> ---
>  gcc/config.gcc                      |   4 +
>  gcc/config/aarch64/aarch64-protos.h |   5 +
>  gcc/config/aarch64/cygming.h        | 175 ++++++++++++++++++++++++++++
>  3 files changed, 184 insertions(+)
>  create mode 100644 gcc/config/aarch64/cygming.h
>
> diff --git a/gcc/config.gcc b/gcc/config.gcc
> index 3aca257c322..4471599454b 100644
> --- a/gcc/config.gcc
> +++ b/gcc/config.gcc
> @@ -1267,7 +1267,11 @@ aarch64*-*-linux*)
>  aarch64-*-mingw*)
>  	tm_file="${tm_file} aarch64/aarch64-abi-ms.h"
>  	tm_file="${tm_file} aarch64/aarch64-coff.h"
> +	tm_file="${tm_file} aarch64/cygming.h"
> +	tm_file="${tm_file} mingw/mingw32.h"
> +	tm_file="${tm_file} mingw/mingw-stdint.h"
>  	tmake_file="${tmake_file} aarch64/t-aarch64"
> +	target_gtfiles="$target_gtfiles \$(srcdir)/config/mingw/winnt.cc"
>  	case ${enable_threads} in
>  	  "" | yes | win32)
>  	    thread_file='win32'
> diff --git a/gcc/config/aarch64/aarch64-protos.h b/gcc/config/aarch64/aarch64-protos.h
> index bd719b992a5..759e1a0f9da 100644
> --- a/gcc/config/aarch64/aarch64-protos.h
> +++ b/gcc/config/aarch64/aarch64-protos.h
> @@ -1110,6 +1110,11 @@ extern void aarch64_output_patchable_area (unsigned int, bool);
>  
>  extern void aarch64_adjust_reg_alloc_order ();
>  
> +extern void mingw_pe_maybe_record_exported_symbol (tree, const char *, int);
> +extern unsigned int mingw_pe_section_type_flags (tree, const char *, int);
> +extern void mingw_pe_unique_section (tree, int);
> +extern void mingw_pe_encode_section_info (tree, rtx, int);
> +
>  bool aarch64_optimize_mode_switching (aarch64_mode_entity);
>  void aarch64_restore_za (rtx);
>  
> diff --git a/gcc/config/aarch64/cygming.h b/gcc/config/aarch64/cygming.h
> new file mode 100644
> index 00000000000..2f239c42a89
> --- /dev/null
> +++ b/gcc/config/aarch64/cygming.h
> @@ -0,0 +1,175 @@
> +/* Operating system specific defines to be used when targeting GCC for
> +   hosting on Windows32, using a Unix style C library and tools.
> +   Copyright (C) 1995-2024 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/>.  */
> +
> +#ifndef GCC_AARCH64_CYGMING_H
> +#define GCC_AARCH64_CYGMING_H
> +
> +#undef PREFERRED_DEBUGGING_TYPE
> +#define PREFERRED_DEBUGGING_TYPE DINFO_TYPE_NONE
> +
> +#define FASTCALL_PREFIX '@'
> +
> +#define print_reg(rtx, code, file)

How about:

#define print_reg(rtx, code, file) (gcc_unreachable ())

so that attempts to use this are a noisy runtime failure?

> +#define SYMBOL_FLAG_DLLIMPORT 0
> +#define SYMBOL_FLAG_DLLEXPORT 0
> +
> +#define SYMBOL_REF_DLLEXPORT_P(X) \
> +	((SYMBOL_REF_FLAGS (X) & SYMBOL_FLAG_DLLEXPORT) != 0)
> +
> +/* Disable SEH and declare the required SEH-related macros that are
> +still needed for compilation.  */
> +#undef TARGET_SEH
> +#define TARGET_SEH 0
> +
> +#define SSE_REGNO_P(N) 0
> +#define GENERAL_REGNO_P(N) 0
> +#define SEH_MAX_FRAME_SIZE 0

Similarly here, how about:

#define SSE_REGNO_P(N) (gcc_unreachable (), 0)
#define GENERAL_REGNO_P(N) (gcc_unreachable (), 0)
#define SEH_MAX_FRAME_SIZE (gcc_unreachable (), 0)

Thanks,
Richard
diff mbox series

Patch

diff --git a/gcc/config.gcc b/gcc/config.gcc
index 3aca257c322..4471599454b 100644
--- a/gcc/config.gcc
+++ b/gcc/config.gcc
@@ -1267,7 +1267,11 @@  aarch64*-*-linux*)
 aarch64-*-mingw*)
 	tm_file="${tm_file} aarch64/aarch64-abi-ms.h"
 	tm_file="${tm_file} aarch64/aarch64-coff.h"
+	tm_file="${tm_file} aarch64/cygming.h"
+	tm_file="${tm_file} mingw/mingw32.h"
+	tm_file="${tm_file} mingw/mingw-stdint.h"
 	tmake_file="${tmake_file} aarch64/t-aarch64"
+	target_gtfiles="$target_gtfiles \$(srcdir)/config/mingw/winnt.cc"
 	case ${enable_threads} in
 	  "" | yes | win32)
 	    thread_file='win32'
diff --git a/gcc/config/aarch64/aarch64-protos.h b/gcc/config/aarch64/aarch64-protos.h
index bd719b992a5..759e1a0f9da 100644
--- a/gcc/config/aarch64/aarch64-protos.h
+++ b/gcc/config/aarch64/aarch64-protos.h
@@ -1110,6 +1110,11 @@  extern void aarch64_output_patchable_area (unsigned int, bool);
 
 extern void aarch64_adjust_reg_alloc_order ();
 
+extern void mingw_pe_maybe_record_exported_symbol (tree, const char *, int);
+extern unsigned int mingw_pe_section_type_flags (tree, const char *, int);
+extern void mingw_pe_unique_section (tree, int);
+extern void mingw_pe_encode_section_info (tree, rtx, int);
+
 bool aarch64_optimize_mode_switching (aarch64_mode_entity);
 void aarch64_restore_za (rtx);
 
diff --git a/gcc/config/aarch64/cygming.h b/gcc/config/aarch64/cygming.h
new file mode 100644
index 00000000000..2f239c42a89
--- /dev/null
+++ b/gcc/config/aarch64/cygming.h
@@ -0,0 +1,175 @@ 
+/* Operating system specific defines to be used when targeting GCC for
+   hosting on Windows32, using a Unix style C library and tools.
+   Copyright (C) 1995-2024 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/>.  */
+
+#ifndef GCC_AARCH64_CYGMING_H
+#define GCC_AARCH64_CYGMING_H
+
+#undef PREFERRED_DEBUGGING_TYPE
+#define PREFERRED_DEBUGGING_TYPE DINFO_TYPE_NONE
+
+#define FASTCALL_PREFIX '@'
+
+#define print_reg(rtx, code, file)
+
+#define SYMBOL_FLAG_DLLIMPORT 0
+#define SYMBOL_FLAG_DLLEXPORT 0
+
+#define SYMBOL_REF_DLLEXPORT_P(X) \
+	((SYMBOL_REF_FLAGS (X) & SYMBOL_FLAG_DLLEXPORT) != 0)
+
+/* Disable SEH and declare the required SEH-related macros that are
+still needed for compilation.  */
+#undef TARGET_SEH
+#define TARGET_SEH 0
+
+#define SSE_REGNO_P(N) 0
+#define GENERAL_REGNO_P(N) 0
+#define SEH_MAX_FRAME_SIZE 0
+
+#undef DEFAULT_ABI
+#define DEFAULT_ABI AARCH64_CALLING_ABI_MS
+
+#undef TARGET_PECOFF
+#define TARGET_PECOFF 1
+
+#include <stdbool.h>
+#ifdef __MINGW32__
+#include <stdio.h>
+#endif
+
+extern void mingw_pe_asm_named_section (const char *, unsigned int, tree);
+extern void mingw_pe_declare_function_type (FILE *file, const char *name,
+	int pub);
+
+#define TARGET_ASM_NAMED_SECTION  mingw_pe_asm_named_section
+
+/* Select attributes for named sections.  */
+#define TARGET_SECTION_TYPE_FLAGS  mingw_pe_section_type_flags
+
+#define TARGET_ASM_UNIQUE_SECTION mingw_pe_unique_section
+#define TARGET_ENCODE_SECTION_INFO  mingw_pe_encode_section_info
+
+/* Declare the type properly for any external libcall.  */
+#define ASM_OUTPUT_EXTERNAL_LIBCALL(FILE, FUN) \
+  mingw_pe_declare_function_type (FILE, XSTR (FUN, 0), 1)
+
+#define TARGET_OS_CPP_BUILTINS()					\
+  do									\
+    {									\
+      builtin_define ("__MSVCRT__");					\
+      builtin_define ("__MINGW32__");					\
+      builtin_define ("_WIN32");					\
+      builtin_define_std ("WIN32");					\
+      builtin_define_std ("WINNT");					\
+      builtin_define_with_int_value ("_INTEGRAL_MAX_BITS",		\
+				TYPE_PRECISION (intmax_type_node));	\
+      builtin_define ("__MINGW64__");					\
+      builtin_define_std ("WIN64");					\
+      builtin_define ("_WIN64");					\
+      builtin_define ("__stdcall=__attribute__((__stdcall__))");	\
+      builtin_define ("__fastcall=__attribute__((__fastcall__))");	\
+      builtin_define ("__thiscall=__attribute__((__thiscall__))");	\
+      builtin_define ("__cdecl=__attribute__((__cdecl__))");		\
+    }									\
+  while (0)
+
+/* Windows64 continues to use a 32-bit long type.  */
+#undef LONG_TYPE_SIZE
+#define LONG_TYPE_SIZE 32
+
+#undef DEFAULT_SIGNED_CHAR
+#define DEFAULT_SIGNED_CHAR 1
+
+#undef SIZE_TYPE
+#undef PTRDIFF_TYPE
+#define SIZE_TYPE "long long unsigned int"
+#define PTRDIFF_TYPE "long long int"
+
+#undef WCHAR_TYPE_SIZE
+#undef WCHAR_TYPE
+#define WCHAR_TYPE_SIZE 16
+#define WCHAR_TYPE "short unsigned int"
+
+#define drectve_section() \
+  (fprintf (asm_out_file, "\t.section\t.drectve\n"), \
+   in_section = NULL)
+
+
+/* Enable alias attribute support.  */
+#ifndef SET_ASM_OP
+#define SET_ASM_OP "\t.set\t"
+#endif
+
+/* GNU as supports weak symbols on PECOFF.  */
+#define ASM_WEAKEN_LABEL(FILE, NAME)	\
+  do					\
+    {					\
+      fputs ("\t.weak\t", (FILE));	\
+      assemble_name ((FILE), (NAME));	\
+      fputc ('\n', (FILE));		\
+    }					\
+  while (0)
+
+/* Get tree.cc to declare a target-specific specialization of
+   merge_decl_attributes.  */
+#define TARGET_DLLIMPORT_DECL_ATTRIBUTES 1
+
+#define ASM_OUTPUT_ADDR_DIFF_ELT(STREAM, BODY, VALUE, REL)		\
+  do {									\
+    switch (GET_MODE (BODY))						\
+      {									\
+      case E_QImode:							\
+	asm_fprintf (STREAM, "\t.byte\t(%LL%d - %LLrtx%d) / 4\n",	\
+		     VALUE, REL);					\
+	break;								\
+      case E_HImode:							\
+	asm_fprintf (STREAM, "\t.2byte\t(%LL%d - %LLrtx%d) / 4\n",	\
+		     VALUE, REL);					\
+	break;								\
+      case E_SImode:							\
+      case E_DImode: /* See comment in aarch64_output_casesi.  */	\
+	asm_fprintf (STREAM, "\t.word\t(%LL%d - %LLrtx%d) / 4\n",	\
+		     VALUE, REL);					\
+	break;								\
+      default:								\
+	gcc_unreachable ();						\
+      }									\
+  } while (0)
+
+#define READONLY_DATA_SECTION_ASM_OP "\t.section\t.rdata,\"dr\""
+
+#undef  SUBTARGET_OVERRIDE_OPTIONS
+#define SUBTARGET_OVERRIDE_OPTIONS			\
+  do {							\
+    flag_stack_check = STATIC_BUILTIN_STACK_CHECK;	\
+  } while (0)
+
+
+#define SUPPORTS_ONE_ONLY 1
+
+/* Define this to be nonzero if static stack checking is supported.  */
+#define STACK_CHECK_STATIC_BUILTIN 1
+
+#define HAVE_GAS_ALIGNED_COMM 1
+
+#undef MAX_OFILE_ALIGNMENT
+#define MAX_OFILE_ALIGNMENT (8192 * 8)
+
+#endif