Attachment #748560 for bug #814200

View | Details | Raw Unified | Return to bug 814200 | Differences between
Collapse All | Expand All




#!/bin/sh
# SPDX-License-Identifier: GPL-2.0
srctree=$(dirname "$0")

SHOW_ERROR=
if [ "$1" = "--show-error" ] ; then
	SHOW_ERROR=1
	shift || true
fi

gccplugins_dir=$($3 -print-file-name=plugin)
plugincc=$($1 -E -x c++ - -o /dev/null -I"${srctree}"/gcc-plugins -I"${gccplugins_dir}"/include 2>&1 <<EOF
#include "gcc-common.h"
#if BUILDING_GCC_VERSION >= 4008 || defined(ENABLE_BUILD_WITH_CXX)
#warning $2 CXX
#else
#warning $1 CC
#endif
EOF
)

if [ $? -ne 0 ]
then
	if [ -n "$SHOW_ERROR" ] ; then
		echo "${plugincc}" >&2
	fi
	exit 1
fi

case "$plugincc" in
	*"$1 CC"*)
		echo "$1"
		exit 0
		;;

	*"$2 CXX"*)
		# the c++ compiler needs another test, see below
		;;

	*)
		exit 1
		;;
esac

# we need a c++ compiler that supports the designated initializer GNU extension
plugincc=$($2 -c -x c++ -std=gnu++98 - -fsyntax-only -I"${srctree}"/gcc-plugins -I"${gccplugins_dir}"/include 2>&1 <<EOF
#include "gcc-common.h"
class test {
public:
	int test;
} test = {
	.test = 1
};
EOF
)

if [ $? -eq 0 ]
then
	echo "$2"
	exit 0
fi

if [ -n "$SHOW_ERROR" ] ; then
	echo "${plugincc}" >&2
fi
exit 1




# SPDX-License-Identifier: GPL-2.0-only
preferred-plugin-hostcc := $(if-success,[ $(gcc-version) -ge 40800 ],$(HOSTCXX),$(HOSTCC))

config PLUGIN_HOSTCC
	string
	default "$(shell,$(srctree)/scripts/gcc-plugin.sh "$(preferred-plugin-hostcc)" "$(HOSTCXX)" "$(CC)")" if CC_IS_GCC
	help
	  Host compiler used to build GCC plugins.  This can be $(HOSTCXX),
	  $(HOSTCC), or a null string if GCC plugin is unsupported.

config HAVE_GCC_PLUGINS
	bool

menuconfig GCC_PLUGINS
	bool "GCC plugins"
	depends on HAVE_GCC_PLUGINS
	depends on CC_IS_GCC
	depends on $(success,test -e $(shell,$(CC) -print-file-name=plugin)/include/plugin-version.h)
	default y
	help
	  GCC plugins are loadable modules that provide extra features to the




# SPDX-License-Identifier: GPL-2.0
PLUGINCC := $(CONFIG_PLUGIN_HOSTCC:"%"=%)
GCC_PLUGINS_DIR := $(shell $(CC) -print-file-name=plugin)

HOSTLIBS := hostcxxlibs
HOST_EXTRACXXFLAGS += -I$(GCC_PLUGINS_DIR)/include -I$(src) -std=gnu++11 -fno-rtti
HOST_EXTRACXXFLAGS += -fno-exceptions -fasynchronous-unwind-tables -ggdb
HOST_EXTRACXXFLAGS += -Wno-narrowing -Wno-unused-variable
HOST_EXTRACXXFLAGS += -Wno-format-diag
export HOST_EXTRACXXFLAGS
  HOST_EXTRACXXFLAGS += -I$(GCC_PLUGINS_DIR)/include -I$(src) -std=gnu++98 -fno-rtti
  HOST_EXTRACXXFLAGS += -fno-exceptions -fasynchronous-unwind-tables -ggdb
  HOST_EXTRACXXFLAGS += -Wno-narrowing -Wno-unused-variable
  HOST_EXTRACXXFLAGS += -Wno-format-diag
  export HOST_EXTRACXXFLAGS
endif

$(obj)/randomize_layout_plugin.o: $(objtree)/$(obj)/randomize_layout_seed.h
quiet_cmd_create_randomize_layout_seed = GENSEED $@
- 

Return to bug 814200

Lines 1-66 Link Here

(-)a/scripts/gcc-plugin.sh (-66 lines)
1	#!/bin/sh
2	# SPDX-License-Identifier: GPL-2.0
3	srctree=$(dirname "$0")
4
5	SHOW_ERROR=
6	if [ "$1" = "--show-error" ] ; then
7	SHOW_ERROR=1
8	shift \|\| true
9	fi
10
11	gccplugins_dir=$($3 -print-file-name=plugin)
12	plugincc=$($1 -E -x c++ - -o /dev/null -I"${srctree}"/gcc-plugins -I"${gccplugins_dir}"/include 2>&1 <<EOF
13	#include "gcc-common.h"
14	#if BUILDING_GCC_VERSION >= 4008 \|\| defined(ENABLE_BUILD_WITH_CXX)
15	#warning $2 CXX
16	#else
17	#warning $1 CC
18	#endif
19	EOF
20	)
21
22	if [ $? -ne 0 ]
23	then
24	if [ -n "$SHOW_ERROR" ] ; then
25	echo "${plugincc}" >&2
26	fi
27	exit 1
28	fi
29
30	case "$plugincc" in
31	"$1 CC")
32	echo "$1"
33	exit 0
34	;;
35
36	"$2 CXX")
37	# the c++ compiler needs another test, see below
38	;;
39
40	*)
41	exit 1
42	;;
43	esac
44
45	# we need a c++ compiler that supports the designated initializer GNU extension
46	plugincc=$($2 -c -x c++ -std=gnu++98 - -fsyntax-only -I"${srctree}"/gcc-plugins -I"${gccplugins_dir}"/include 2>&1 <<EOF
47	#include "gcc-common.h"
48	class test {
49	public:
50	int test;
51	} test = {
52	.test = 1
53	};
54	EOF
55	)
56
57	if [ $? -eq 0 ]
58	then
59	echo "$2"
60	exit 0
61	fi
62
63	if [ -n "$SHOW_ERROR" ] ; then
64	echo "${plugincc}" >&2
65	fi
66	exit 1

Lines 1-12 Link Here

(-)a/scripts/gcc-plugins/Kconfig (-9 / +2 lines)
1	# SPDX-License-Identifier: GPL-2.0-only	1	# SPDX-License-Identifier: GPL-2.0-only
2	preferred-plugin-hostcc := $(if-success,[ $(gcc-version) -ge 40800 ],$(HOSTCXX),$(HOSTCC))
3
4	config PLUGIN_HOSTCC
5	string
6	default "$(shell,$(srctree)/scripts/gcc-plugin.sh "$(preferred-plugin-hostcc)" "$(HOSTCXX)" "$(CC)")" if CC_IS_GCC
7	help
8	Host compiler used to build GCC plugins. This can be $(HOSTCXX),
9	$(HOSTCC), or a null string if GCC plugin is unsupported.
10		2
11	config HAVE_GCC_PLUGINS	3	config HAVE_GCC_PLUGINS
12	bool	4	bool
Lines 17-23 config HAVE_GCC_PLUGINS Link Here
17	menuconfig GCC_PLUGINS	9	menuconfig GCC_PLUGINS
18	bool "GCC plugins"	10	bool "GCC plugins"
19	depends on HAVE_GCC_PLUGINS	11	depends on HAVE_GCC_PLUGINS
20	depends on PLUGIN_HOSTCC != ""	12	depends on CC_IS_GCC
		13	depends on $(success,test -e $(shell,$(CC) -print-file-name=plugin)/include/plugin-version.h)
21	default y	14	default y
22	help	15	help
23	GCC plugins are loadable modules that provide extra features to the	16	GCC plugins are loadable modules that provide extra features to the

Lines 1-19 Link Here

(-)a/scripts/gcc-plugins/Makefile (-14 / +6 lines)
1	# SPDX-License-Identifier: GPL-2.0	1	# SPDX-License-Identifier: GPL-2.0
2	PLUGINCC := $(CONFIG_PLUGIN_HOSTCC:"%"=%)
3	GCC_PLUGINS_DIR := $(shell $(CC) -print-file-name=plugin)	2	GCC_PLUGINS_DIR := $(shell $(CC) -print-file-name=plugin)
4		3
5	ifeq ($(PLUGINCC),$(HOSTCC))	4	HOSTLIBS := hostcxxlibs
6	HOSTLIBS := hostlibs	5	HOST_EXTRACXXFLAGS += -I$(GCC_PLUGINS_DIR)/include -I$(src) -std=gnu++11 -fno-rtti
7	HOST_EXTRACFLAGS += -I$(GCC_PLUGINS_DIR)/include -I$(src) -std=gnu99 -ggdb	6	HOST_EXTRACXXFLAGS += -fno-exceptions -fasynchronous-unwind-tables -ggdb
8	export HOST_EXTRACFLAGS	7	HOST_EXTRACXXFLAGS += -Wno-narrowing -Wno-unused-variable
9	else	8	HOST_EXTRACXXFLAGS += -Wno-format-diag
10	HOSTLIBS := hostcxxlibs	9	export HOST_EXTRACXXFLAGS
11	HOST_EXTRACXXFLAGS += -I$(GCC_PLUGINS_DIR)/include -I$(src) -std=gnu++98 -fno-rtti
12	HOST_EXTRACXXFLAGS += -fno-exceptions -fasynchronous-unwind-tables -ggdb
13	HOST_EXTRACXXFLAGS += -Wno-narrowing -Wno-unused-variable
14	HOST_EXTRACXXFLAGS += -Wno-format-diag
15	export HOST_EXTRACXXFLAGS
16	endif
17		10
18	$(obj)/randomize_layout_plugin.o: $(objtree)/$(obj)/randomize_layout_seed.h	11	$(obj)/randomize_layout_plugin.o: $(objtree)/$(obj)/randomize_layout_seed.h
19	quiet_cmd_create_randomize_layout_seed = GENSEED $@	12	quiet_cmd_create_randomize_layout_seed = GENSEED $@
20	-