[PATCH 21/23] gcc-plugins: move GCC version check for PowerPC to Kconfig
From: Masahiro Yamada <hidden>
Date: 2018-02-16 18:38:49
Also in:
linux-kbuild, lkml
Subsystem:
gcc plugins, kernel build + files below scripts/ (unless maintained elsewhere), linux for powerpc (32-bit and 64-bit), the rest · Maintainers:
Kees Cook, Nathan Chancellor, Nicolas Schier, Madhavan Srinivasan, Michael Ellerman, Linus Torvalds
For PowerPC, GCC 5.2 is the requirement for GCC plugins. Move the version check to Kconfig, and remove the ugly checker. Signed-off-by: Masahiro Yamada <redacted> --- arch/powerpc/Kconfig | 2 +- scripts/Makefile.gcc-plugins | 8 -------- 2 files changed, 1 insertion(+), 9 deletions(-)
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 73ce5dd..b8474c2 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig@@ -195,7 +195,7 @@ config PPC select HAVE_FTRACE_MCOUNT_RECORD select HAVE_FUNCTION_GRAPH_TRACER select HAVE_FUNCTION_TRACER - select HAVE_GCC_PLUGINS + select HAVE_GCC_PLUGINS if GCC_VERSION >= 50200 select HAVE_GENERIC_GUP select HAVE_HW_BREAKPOINT if PERF_EVENTS && (PPC_BOOK3S || PPC_8xx) select HAVE_IDE
diff --git a/scripts/Makefile.gcc-plugins b/scripts/Makefile.gcc-plugins
index b0f9108..25da4c0 100644
--- a/scripts/Makefile.gcc-plugins
+++ b/scripts/Makefile.gcc-plugins@@ -56,14 +56,6 @@ gcc-plugins-check: FORCE ifdef CONFIG_GCC_PLUGINS ifeq ($(PLUGINCC),) ifneq ($(GCC_PLUGINS_CFLAGS),) - # Various gccs between 4.5 and 5.1 have bugs on powerpc due to missing - # header files. gcc <= 4.6 doesn't work at all, gccs from 4.8 to 5.1 have - # issues with 64-bit targets. - ifeq ($(ARCH),powerpc) - ifeq ($(call cc-ifversion, -le, 0501, y), y) - @echo "Cannot use CONFIG_GCC_PLUGINS: plugin support on gcc <= 5.1 is buggy on powerpc, please upgrade to gcc 5.2 or newer" >&2 && exit 1 - endif - endif $(Q)$(srctree)/scripts/gcc-plugin.sh --show-error $(HOSTCXX) $(CC) || true @echo "Cannot use CONFIG_GCC_PLUGINS: your gcc installation does not support plugins, perhaps the necessary headers are missing?" >&2 && exit 1 endif
--
2.7.4