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fc525d625a
Certain targets disable kstack_erase by filtering out KSTACK_ERASE_CFLAGS
rather than adding DISABLE_KSTACK_ERASE. The renaming to kstack_erase
missed the CFLAGS export, which broke those build targets (e.g. x86
vdso32).
Fixes: 76261fc7d1 ("stackleak: Split KSTACK_ERASE_CFLAGS from GCC_PLUGINS_CFLAGS")
Signed-off-by: Kees Cook <kees@kernel.org>
22 lines
900 B
Makefile
22 lines
900 B
Makefile
# SPDX-License-Identifier: GPL-2.0
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ifdef CONFIG_GCC_PLUGIN_STACKLEAK
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kstack-erase-cflags-y += -fplugin=$(objtree)/scripts/gcc-plugins/stackleak_plugin.so
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kstack-erase-cflags-y += -fplugin-arg-stackleak_plugin-track-min-size=$(CONFIG_KSTACK_ERASE_TRACK_MIN_SIZE)
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kstack-erase-cflags-y += -fplugin-arg-stackleak_plugin-arch=$(SRCARCH)
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kstack-erase-cflags-$(CONFIG_GCC_PLUGIN_STACKLEAK_VERBOSE) += -fplugin-arg-stackleak_plugin-verbose
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DISABLE_KSTACK_ERASE := -fplugin-arg-stackleak_plugin-disable
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endif
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ifdef CONFIG_CC_IS_CLANG
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kstack-erase-cflags-y += -fsanitize-coverage=stack-depth
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kstack-erase-cflags-y += -fsanitize-coverage-stack-depth-callback-min=$(CONFIG_KSTACK_ERASE_TRACK_MIN_SIZE)
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DISABLE_KSTACK_ERASE := -fno-sanitize-coverage=stack-depth
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endif
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KSTACK_ERASE_CFLAGS := $(kstack-erase-cflags-y)
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export KSTACK_ERASE_CFLAGS DISABLE_KSTACK_ERASE
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KBUILD_CFLAGS += $(KSTACK_ERASE_CFLAGS)
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