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i386: Add __attribute__ ((gcc_struct)) to struct fenv [PR95418]

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Windows ABI (MinGW) is different than Linux ABI when bitfileds are involved.
The following patch adds __attribute__ ((gcc_struct)) to struct fenv in order
to match the layout of x87 state image in memory.

2020-06-01  Uroš Bizjak  <ubizjak@gmail.com>

libatomic/ChangeLog:
	* config/x86/fenv.c (struct fenv): Add __attribute__ ((gcc_struct)).

libgcc/ChangeLog:
	* config/i386/sfp-exceptions.c (struct fenv):
	Add __attribute__ ((gcc_struct)).

libgfortran/ChangeLog:
	PR libfortran/95418
	* config/fpu-387.h (struct fenv): Add __attribute__ ((gcc_struct)).
This commit is contained in:
Uros Bizjak 2020-06-01 22:23:51 +02:00
parent 88f48e2967
commit 832c1192eb
3 changed files with 3 additions and 3 deletions
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2
libatomic/config/x86/fenv.c
View file

@ -45,7 +45,7 @@ struct fenv
unsigned int __data_offset;
unsigned short int __data_selector;
unsigned short int __unused5;
};
} __attribute__ ((gcc_struct));
#ifdef __SSE_MATH__
# define __math_force_eval_div(x, y) \

2
libgcc/config/i386/sfp-exceptions.c
View file

@ -39,7 +39,7 @@ struct fenv
unsigned int __data_offset;
unsigned short int __data_selector;
unsigned short int __unused5;
};
} __attribute__ ((gcc_struct));
#ifdef __SSE_MATH__
# define __math_force_eval_div(x, y) \

2
libgfortran/config/fpu-387.h
View file

@ -85,7 +85,7 @@ struct fenv
unsigned short int __data_selector;
unsigned short int __unused5;
unsigned int __mxcsr;
};
} __attribute__ ((gcc_struct));
/* Check we can actually store the FPU state in the allocated size. */
_Static_assert (sizeof(struct fenv) <= (size_t) GFC_FPE_STATE_BUFFER_SIZE,