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61d56d7aa5
Disable branch tracing in core KCSAN runtime if branches are being traced (TRACE_BRANCH_PROFILING). This it to avoid its performance impact, but also avoid recursion in case KCSAN is enabled for the branch tracing runtime. The latter had already been a problem for KASAN: https://lore.kernel.org/lkml/CANpmjNOeXmD5E3O50Z3MjkiuCYaYOPyi+1rq=GZvEKwBvLR0Ug@mail.gmail.com/ Signed-off-by: Marco Elver <elver@google.com> Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
17 lines
522 B
Makefile
17 lines
522 B
Makefile
# SPDX-License-Identifier: GPL-2.0
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KCSAN_SANITIZE := n
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KCOV_INSTRUMENT := n
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UBSAN_SANITIZE := n
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CFLAGS_REMOVE_core.o = $(CC_FLAGS_FTRACE)
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CFLAGS_REMOVE_debugfs.o = $(CC_FLAGS_FTRACE)
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CFLAGS_REMOVE_report.o = $(CC_FLAGS_FTRACE)
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CFLAGS_core.o := $(call cc-option,-fno-conserve-stack) \
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-fno-stack-protector -DDISABLE_BRANCH_PROFILING
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obj-y := core.o debugfs.o report.o
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obj-$(CONFIG_KCSAN_SELFTEST) += selftest.o
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CFLAGS_kcsan-test.o := $(CFLAGS_KCSAN) -g -fno-omit-frame-pointer
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obj-$(CONFIG_KCSAN_TEST) += kcsan-test.o
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