From 7210e060155b9cf557fb13128353c3e494fa5ed3 Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Mon, 20 May 2019 11:50:42 -0700 Subject: gcc-plugins: Fix build failures under Darwin host The gcc-common.h file did not take into account certain macros that might have already been defined in the build environment. This updates the header to avoid redefining the macros, as seen on a Darwin host using gcc 4.9.2: HOSTCXX -fPIC scripts/gcc-plugins/arm_ssp_per_task_plugin.o - due to: scripts/gcc-plugins/gcc-common.h In file included from scripts/gcc-plugins/arm_ssp_per_task_plugin.c:3:0: scripts/gcc-plugins/gcc-common.h:153:0: warning: "__unused" redefined ^ In file included from /usr/include/stdio.h:64:0, from /Users/hns/Documents/Projects/QuantumSTEP/System/Library/Frameworks/System.framework/Versions-jessie/x86_64-apple-darwin15.0.0/gcc/arm-linux-gnueabi/bin/../lib/gcc/arm-linux-gnueabi/4.9.2/plugin/include/system.h:40, from /Users/hns/Documents/Projects/QuantumSTEP/System/Library/Frameworks/System.framework/Versions-jessie/x86_64-apple-darwin15.0.0/gcc/arm-linux-gnueabi/bin/../lib/gcc/arm-linux-gnueabi/4.9.2/plugin/include/gcc-plugin.h:28, from /Users/hns/Documents/Projects/QuantumSTEP/System/Library/Frameworks/System.framework/Versions-jessie/x86_64-apple-darwin15.0.0/gcc/arm-linux-gnueabi/bin/../lib/gcc/arm-linux-gnueabi/4.9.2/plugin/include/plugin.h:23, from scripts/gcc-plugins/gcc-common.h:9, from scripts/gcc-plugins/arm_ssp_per_task_plugin.c:3: /usr/include/sys/cdefs.h:161:0: note: this is the location of the previous definition ^ Reported-and-tested-by: "H. Nikolaus Schaller" Fixes: 189af4657186 ("ARM: smp: add support for per-task stack canaries") Cc: stable@vger.kernel.org Signed-off-by: Kees Cook --- scripts/gcc-plugins/gcc-common.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'scripts/gcc-plugins') diff --git a/scripts/gcc-plugins/gcc-common.h b/scripts/gcc-plugins/gcc-common.h index 552d5efd7cb7..17f06079a712 100644 --- a/scripts/gcc-plugins/gcc-common.h +++ b/scripts/gcc-plugins/gcc-common.h @@ -150,8 +150,12 @@ void print_gimple_expr(FILE *, gimple, int, int); void dump_gimple_stmt(pretty_printer *, gimple, int, int); #endif +#ifndef __unused #define __unused __attribute__((__unused__)) +#endif +#ifndef __visible #define __visible __attribute__((visibility("default"))) +#endif #define DECL_NAME_POINTER(node) IDENTIFIER_POINTER(DECL_NAME(node)) #define DECL_NAME_LENGTH(node) IDENTIFIER_LENGTH(DECL_NAME(node)) -- cgit From ec8f24b7faaf3d4799a7c3f4c1b87f6b02778ad1 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Sun, 19 May 2019 13:07:45 +0100 Subject: treewide: Add SPDX license identifier - Makefile/Kconfig Add SPDX license identifiers to all Make/Kconfig files which: - Have no license information of any form These files fall under the project license, GPL v2 only. The resulting SPDX license identifier is: GPL-2.0-only Signed-off-by: Thomas Gleixner Signed-off-by: Greg Kroah-Hartman --- scripts/gcc-plugins/Kconfig | 1 + 1 file changed, 1 insertion(+) (limited to 'scripts/gcc-plugins') diff --git a/scripts/gcc-plugins/Kconfig b/scripts/gcc-plugins/Kconfig index 80220ed26a35..e9c677a53c74 100644 --- a/scripts/gcc-plugins/Kconfig +++ b/scripts/gcc-plugins/Kconfig @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only preferred-plugin-hostcc := $(if-success,[ $(gcc-version) -ge 40800 ],$(HOSTCXX),$(HOSTCC)) config PLUGIN_HOSTCC -- cgit