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arm64: Use __builtin_ms_va_list and __attribute__((ms_abi)) on arm64. 

Windows uses a different ABI for va_list on arm64 just like on x86_64.

On x86_64, the calling convention for windows functions is completely
different from the one on other platforms. On arm64, they're mostly the
same, with the only exception being variadic functions (where all float
arguments are passed in integer registers, since the va_list is a single
pointer).

Any functions using __builtin_ms_va_start need to be decorated with
__attribute__((ms_abi)).

Signed-off-by: Martin Storsjo <martin@martin.st>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Martin Storsjo 2018-05-09 23:34:57 +03:00 committed by Alexandre Julliard
parent 8f46ac233e
commit 8fb8cc03c3
5 changed files with 43 additions and 4 deletions
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24
configure vendored
View File

@ -5408,6 +5408,30 @@ rm -f core conftest.err conftest.$ac_objext \
CFLAGS="$CFLAGS -marm -mfloat-abi=$float_abi"
TARGETFLAGS="-marm -mfloat-abi=$float_abi"
;;
aarch64*)
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC supports __builtin_ms_va_list" >&5
$as_echo_n "checking whether $CC supports __builtin_ms_va_list... " >&6; }
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
#include <stdarg.h>
int
main ()
{
void func(__builtin_ms_va_list *args);
;
return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
else
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
as_fn_error $? "You need clang >= 5.0 to build Wine for arm64." "$LINENO" 5
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
;;
i[3456789]86*)
enable_win16=${enable_win16:-yes}

7
configure.ac
View File

@ -205,6 +205,13 @@ case $host in
CFLAGS="$CFLAGS -marm -mfloat-abi=$float_abi"
AC_SUBST(TARGETFLAGS,"-marm -mfloat-abi=$float_abi")
;;
aarch64*)
AC_MSG_CHECKING([whether $CC supports __builtin_ms_va_list])
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <stdarg.h>]], [[void func(__builtin_ms_va_list *args);]])],
[AC_MSG_RESULT([yes])],
[AC_MSG_RESULT([no])
AC_MSG_ERROR([You need clang >= 5.0 to build Wine for arm64.])])
;;
i[[3456789]]86*)
enable_win16=${enable_win16:-yes}
;;

6
include/msvcrt/crtdefs.h
View File

@ -62,6 +62,8 @@
# endif
# elif defined(__arm__) && defined (__GNUC__) && !defined(__SOFTFP__)
# define __stdcall __attribute__((pcs("aapcs-vfp")))
# elif defined(__aarch64__) && defined (__GNUC__)
# define __stdcall __attribute__((ms_abi))
# else /* __i386__ */
# define __stdcall
# endif /* __i386__ */
@ -82,13 +84,15 @@
# endif
# elif defined(__arm__) && defined (__GNUC__) && !defined(__SOFTFP__)
# define __cdecl __attribute__((pcs("aapcs-vfp")))
# elif defined(__aarch64__) && defined (__GNUC__)
# define __cdecl __attribute__((ms_abi))
# elif !defined(_MSC_VER)
# define __cdecl
# endif
#endif /* __cdecl */
#ifndef __ms_va_list
# if defined(__x86_64__) && defined (__GNUC__)
# if (defined(__x86_64__) || defined(__aarch64__)) && defined (__GNUC__)
# define __ms_va_list __builtin_ms_va_list
# define __ms_va_start(list,arg) __builtin_ms_va_start(list,arg)
# define __ms_va_end(list) __builtin_ms_va_end(list)

6
include/windef.h
View File

@ -71,6 +71,8 @@ extern "C" {
# endif
# elif defined(__arm__) && defined (__GNUC__) && !defined(__SOFTFP__)
# define __stdcall __attribute__((pcs("aapcs-vfp")))
# elif defined(__aarch64__) && defined (__GNUC__)
# define __stdcall __attribute__((ms_abi))
# else /* __i386__ */
# define __stdcall
# endif /* __i386__ */
@ -91,13 +93,15 @@ extern "C" {
# endif
# elif defined(__arm__) && defined (__GNUC__) && !defined(__SOFTFP__)
# define __cdecl __attribute__((pcs("aapcs-vfp")))
# elif defined(__aarch64__) && defined (__GNUC__)
# define __cdecl __attribute__((ms_abi))
# elif !defined(_MSC_VER)
# define __cdecl
# endif
#endif /* __cdecl */
#ifndef __ms_va_list
# if defined(__x86_64__) && defined (__GNUC__)
# if (defined(__x86_64__) || defined(__aarch64__)) && defined (__GNUC__)
# define __ms_va_list __builtin_ms_va_list
# define __ms_va_start(list,arg) __builtin_ms_va_start(list,arg)
# define __ms_va_end(list) __builtin_ms_va_end(list)

4
include/wine/test.h
View File

@ -90,7 +90,7 @@ static inline int winetest_strcmpW( const WCHAR *str1, const WCHAR *str2 )
#define START_TEST(name) void func_##name(void)
#endif
#if defined(__x86_64__) && defined(__GNUC__) && defined(__WINE_USE_MSVCRT)
#if (defined(__x86_64__) || defined(__aarch64__)) && defined(__GNUC__) && defined(__WINE_USE_MSVCRT)
#define __winetest_cdecl __cdecl
#define __winetest_va_list __builtin_ms_va_list
#else
@ -181,7 +181,7 @@ extern void __winetest_cdecl winetest_trace( const char *msg, ... ) WINETEST_PRI
#include <stdio.h>
#include <excpt.h>
#if defined(__x86_64__) && defined(__GNUC__) && defined(__WINE_USE_MSVCRT)
#if (defined(__x86_64__) || defined(__aarch64__)) && defined(__GNUC__) && defined(__WINE_USE_MSVCRT)
# define __winetest_va_start(list,arg) __builtin_ms_va_start(list,arg)
# define __winetest_va_end(list) __builtin_ms_va_end(list)
#else