mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-11-25 08:30:54 +07:00
642ef99be9
Since commitd677a4d601("Makefile: support flag -fsanitizer-coverage=trace-cmp"), you miss to build the SANCOV plugin under some circumstances. CONFIG_KCOV=y CONFIG_KCOV_ENABLE_COMPARISONS=y Your compiler does not support -fsanitize-coverage=trace-pc Your compiler does not support -fsanitize-coverage=trace-cmp Under this condition, $(CFLAGS_KCOV) is not empty but contains a space, so the following ifeq-conditional is false. ifeq ($(CFLAGS_KCOV),) Then, scripts/Makefile.gcc-plugins misses to add sancov_plugin.so to gcc-plugin-y while the SANCOV plugin is necessary as an alternative means. Fixes:d677a4d601("Makefile: support flag -fsanitizer-coverage=trace-cmp") Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Acked-by: Kees Cook <keescook@chromium.org>
86 lines
3.6 KiB
Makefile
86 lines
3.6 KiB
Makefile
# SPDX-License-Identifier: GPL-2.0
|
|
ifdef CONFIG_GCC_PLUGINS
|
|
__PLUGINCC := $(call cc-ifversion, -ge, 0408, $(HOSTCXX), $(HOSTCC))
|
|
PLUGINCC := $(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-plugin.sh "$(__PLUGINCC)" "$(HOSTCXX)" "$(CC)")
|
|
|
|
SANCOV_PLUGIN := -fplugin=$(objtree)/scripts/gcc-plugins/sancov_plugin.so
|
|
|
|
gcc-plugin-$(CONFIG_GCC_PLUGIN_CYC_COMPLEXITY) += cyc_complexity_plugin.so
|
|
|
|
gcc-plugin-$(CONFIG_GCC_PLUGIN_LATENT_ENTROPY) += latent_entropy_plugin.so
|
|
gcc-plugin-cflags-$(CONFIG_GCC_PLUGIN_LATENT_ENTROPY) += -DLATENT_ENTROPY_PLUGIN
|
|
ifdef CONFIG_GCC_PLUGIN_LATENT_ENTROPY
|
|
DISABLE_LATENT_ENTROPY_PLUGIN += -fplugin-arg-latent_entropy_plugin-disable
|
|
endif
|
|
|
|
ifdef CONFIG_GCC_PLUGIN_SANCOV
|
|
ifeq ($(strip $(CFLAGS_KCOV)),)
|
|
# It is needed because of the gcc-plugin.sh and gcc version checks.
|
|
gcc-plugin-$(CONFIG_GCC_PLUGIN_SANCOV) += sancov_plugin.so
|
|
|
|
ifneq ($(PLUGINCC),)
|
|
CFLAGS_KCOV := $(SANCOV_PLUGIN)
|
|
else
|
|
$(warning warning: cannot use CONFIG_KCOV: -fsanitize-coverage=trace-pc is not supported by compiler)
|
|
endif
|
|
endif
|
|
endif
|
|
|
|
gcc-plugin-$(CONFIG_GCC_PLUGIN_STRUCTLEAK) += structleak_plugin.so
|
|
gcc-plugin-cflags-$(CONFIG_GCC_PLUGIN_STRUCTLEAK_VERBOSE) += -fplugin-arg-structleak_plugin-verbose
|
|
gcc-plugin-cflags-$(CONFIG_GCC_PLUGIN_STRUCTLEAK_BYREF_ALL) += -fplugin-arg-structleak_plugin-byref-all
|
|
gcc-plugin-cflags-$(CONFIG_GCC_PLUGIN_STRUCTLEAK) += -DSTRUCTLEAK_PLUGIN
|
|
|
|
gcc-plugin-$(CONFIG_GCC_PLUGIN_RANDSTRUCT) += randomize_layout_plugin.so
|
|
gcc-plugin-cflags-$(CONFIG_GCC_PLUGIN_RANDSTRUCT) += -DRANDSTRUCT_PLUGIN
|
|
gcc-plugin-cflags-$(CONFIG_GCC_PLUGIN_RANDSTRUCT_PERFORMANCE) += -fplugin-arg-randomize_layout_plugin-performance-mode
|
|
|
|
GCC_PLUGINS_CFLAGS := $(strip $(addprefix -fplugin=$(objtree)/scripts/gcc-plugins/, $(gcc-plugin-y)) $(gcc-plugin-cflags-y))
|
|
|
|
export PLUGINCC GCC_PLUGINS_CFLAGS GCC_PLUGIN GCC_PLUGIN_SUBDIR
|
|
export SANCOV_PLUGIN DISABLE_LATENT_ENTROPY_PLUGIN
|
|
|
|
ifneq ($(PLUGINCC),)
|
|
# SANCOV_PLUGIN can be only in CFLAGS_KCOV because avoid duplication.
|
|
GCC_PLUGINS_CFLAGS := $(filter-out $(SANCOV_PLUGIN), $(GCC_PLUGINS_CFLAGS))
|
|
endif
|
|
|
|
KBUILD_CFLAGS += $(GCC_PLUGINS_CFLAGS)
|
|
GCC_PLUGIN := $(gcc-plugin-y)
|
|
GCC_PLUGIN_SUBDIR := $(gcc-plugin-subdir-y)
|
|
endif
|
|
|
|
# If plugins aren't supported, abort the build before hard-to-read compiler
|
|
# errors start getting spewed by the main build.
|
|
PHONY += gcc-plugins-check
|
|
gcc-plugins-check: FORCE
|
|
ifdef CONFIG_GCC_PLUGINS
|
|
ifeq ($(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 ($(call cc-ifversion, -le, 0501, y), y)
|
|
@echo "Cannot use CONFIG_GCC_PLUGINS: plugin support on gcc <= 5.1 is buggy on powerpc, please upgrade to gcc 5.2 or newer" >&2 && exit 1
|
|
endif
|
|
endif
|
|
ifeq ($(call cc-ifversion, -ge, 0405, y), y)
|
|
$(Q)$(srctree)/scripts/gcc-plugin.sh --show-error "$(__PLUGINCC)" "$(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
|
|
else
|
|
@echo "Cannot use CONFIG_GCC_PLUGINS: your gcc version does not support plugins, you should upgrade it to at least gcc 4.5" >&2 && exit 1
|
|
endif
|
|
endif
|
|
endif
|
|
endif
|
|
@:
|
|
|
|
# Actually do the build, if requested.
|
|
PHONY += gcc-plugins
|
|
gcc-plugins: scripts_basic gcc-plugins-check
|
|
ifdef CONFIG_GCC_PLUGINS
|
|
$(Q)$(MAKE) $(build)=scripts/gcc-plugins
|
|
endif
|
|
@:
|