[thirdparty/glibc.git] / scripts / check-c++-types.sh

#!/bin/bash
# Copyright (C) 2003-2019 Free Software Foundation, Inc.
# This file is part of the GNU C Library.

# The GNU C Library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.

# The GNU C Library 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
# Lesser General Public License for more details.

# You should have received a copy of the GNU Lesser General Public
# License along with the GNU C Library; if not, see
# <https://www.gnu.org/licenses/>.

# This script creates a list of data types where each type is followed
# by the C++ mangled name for that type.  That list is then compared
# against the list in the c++-types.data file for the platform being
# checked.  Any difference between the two would mean that the C++ ABI
# had changed and that should not happen even if the change is compatible
# at the C language level.

#
# The list of data types has been created with
# cat <<EOF |
# #include <sys/types.h>
# #include <unistd.h>
# #include <sys/resource.h>
# #include <sys/stat.h>
# EOF
# gcc -D_GNU_SOURCE -E - |
# egrep '^typedef.*;$' |
# sed 's/^typedef[[:space:]]*//;s/\([[:space:]]\{1,\}__attribute__.*\);/;/;s/.*[[:space:]]\([*]\|\)\(.*\);/\2/' |
# egrep -v '^_' |
# LC_ALL=C sort -u
#
data=$1
shift
cxx=$(echo $* | sed 's/-fgnu89-inline//')
while read t; do
  echo -n "$t:"
  $cxx -S -xc++ -o - -D_GNU_SOURCE <(cat <<EOF
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/resource.h>
#include <unistd.h>
void foo ($t) { }
EOF
) |
  sed 's/[[:space:]]*[.]globa\?l[[:space:]]*_Z3foo\([_[:alnum:]]*\).*/\1/p;d'
done <<EOF |
blkcnt64_t
blkcnt_t
blksize_t
caddr_t
clockid_t
clock_t
daddr_t
dev_t
fd_mask
fsblkcnt64_t
fsblkcnt_t
fsfilcnt64_t
fsfilcnt_t
fsid_t
gid_t
id_t
ino64_t
ino_t
int16_t
int32_t
int64_t
int8_t
intptr_t
key_t
loff_t
mode_t
nlink_t
off64_t
off_t
pid_t
pthread_attr_t
pthread_barrier_t
pthread_barrierattr_t
pthread_cond_t
pthread_condattr_t
pthread_key_t
pthread_mutex_t
pthread_mutexattr_t
pthread_once_t
pthread_rwlock_t
pthread_rwlockattr_t
pthread_spinlock_t
pthread_t
quad_t
register_t
rlim64_t
rlim_t
sigset_t
size_t
socklen_t
ssize_t
suseconds_t
time_t
u_char
uid_t
uint
u_int
u_int16_t
u_int32_t
u_int64_t
u_int8_t
ulong
u_long
u_quad_t
useconds_t
ushort
u_short
EOF
diff -N -U0 $data -
Commit	Line	Data
48d0341c	1	#!/bin/bash
04277e02	2	# Copyright (C) 2003-2019 Free Software Foundation, Inc.
60336886 UD	3	# This file is part of the GNU C Library.
	4
	5	# The GNU C Library is free software; you can redistribute it and/or
	6	# modify it under the terms of the GNU Lesser General Public
	7	# License as published by the Free Software Foundation; either
	8	# version 2.1 of the License, or (at your option) any later version.
	9
	10	# The GNU C Library is distributed in the hope that it will be useful,
	11	# but WITHOUT ANY WARRANTY; without even the implied warranty of
	12	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	13	# Lesser General Public License for more details.
	14
	15	# You should have received a copy of the GNU Lesser General Public
59ba27a6	16	# License along with the GNU C Library; if not, see
5a82c748	17	# <https://www.gnu.org/licenses/>.
9c30df69 SE	18
	19	# This script creates a list of data types where each type is followed
	20	# by the C++ mangled name for that type. That list is then compared
	21	# against the list in the c++-types.data file for the platform being
	22	# checked. Any difference between the two would mean that the C++ ABI
	23	# had changed and that should not happen even if the change is compatible
	24	# at the C language level.
	25
60336886 UD	26	#
	27	# The list of data types has been created with
	28	# cat <<EOF \|
	29	# #include <sys/types.h>
	30	# #include <unistd.h>
	31	# #include <sys/resource.h>
	32	# #include <sys/stat.h>
	33	# EOF
	34	# gcc -D_GNU_SOURCE -E - \|
	35	# egrep '^typedef.*;$' \|
	36	# sed 's/^typedef[[:space:]]//;s/\([[:space:]]\{1,\}__attribute__.\);/;/;s/.[[:space:]]\([]\\|\)\(.*\);/\2/' \|
	37	# egrep -v '^_' \|
9b33781c	38	# LC_ALL=C sort -u
60336886	39	#
806e4a4a UD	40	data=$1
806e4a4a UD	41	shift
a53fa282	42	cxx=$(echo $* \| sed 's/-fgnu89-inline//')
60336886 UD	43	while read t; do
	44	echo -n "$t:"
	45	$cxx -S -xc++ -o - -D_GNU_SOURCE <(cat <<EOF
	46	#include <sys/types.h>
	47	#include <sys/stat.h>
	48	#include <sys/resource.h>
	49	#include <unistd.h>
	50	void foo ($t) { }
	51	EOF
	52	) \|
	53	sed 's/[[:space:]][.]globa\?l[[:space:]]_Z3foo\([_[:alnum:]]\)./\1/p;d'
	54	done <<EOF \|
	55	blkcnt64_t
	56	blkcnt_t
	57	blksize_t
	58	caddr_t
	59	clockid_t
	60	clock_t
	61	daddr_t
	62	dev_t
	63	fd_mask
	64	fsblkcnt64_t
	65	fsblkcnt_t
	66	fsfilcnt64_t
	67	fsfilcnt_t
	68	fsid_t
	69	gid_t
	70	id_t
	71	ino64_t
	72	ino_t
	73	int16_t
	74	int32_t
	75	int64_t
	76	int8_t
	77	intptr_t
	78	key_t
	79	loff_t
	80	mode_t
	81	nlink_t
	82	off64_t
	83	off_t
	84	pid_t
ced368f7 UD	85	pthread_attr_t
	86	pthread_barrier_t
	87	pthread_barrierattr_t
	88	pthread_cond_t
	89	pthread_condattr_t
60336886	90	pthread_key_t
ced368f7 UD	91	pthread_mutex_t
ced368f7 UD	92	pthread_mutexattr_t
60336886	93	pthread_once_t
ced368f7 UD	94	pthread_rwlock_t
ced368f7 UD	95	pthread_rwlockattr_t
60336886 UD	96	pthread_spinlock_t
	97	pthread_t
	98	quad_t
	99	register_t
	100	rlim64_t
	101	rlim_t
	102	sigset_t
	103	size_t
	104	socklen_t
	105	ssize_t
	106	suseconds_t
60336886 UD	107	time_t
	108	u_char
	109	uid_t
	110	uint
	111	u_int
	112	u_int16_t
	113	u_int32_t
	114	u_int64_t
	115	u_int8_t
	116	ulong
	117	u_long
	118	u_quad_t
	119	useconds_t
	120	ushort
	121	u_short
	122	EOF
	123	diff -N -U0 $data -