13a0682340
In function kasan_set_poison:
{
...
while (size--)
{
p[size] = value;
}
}
This will optimize to 'memset' function when compile option > O2.
But the memset must be instrument by kasan, so there is recursive
Signed-off-by: ligd <liguiding1@xiaomi.com>
54 lines
1.5 KiB
Plaintext
54 lines
1.5 KiB
Plaintext
############################################################################
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# mm/kasan/Make.defs
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#
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# SPDX-License-Identifier: Apache-2.0
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#
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# Licensed to the Apache Software Foundation (ASF) under one or more
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# contributor license agreements. See the NOTICE file distributed with
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# this work for additional information regarding copyright ownership. The
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# ASF licenses this file to you under the Apache License, Version 2.0 (the
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# "License"); you may not use this file except in compliance with the
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# License. You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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#
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############################################################################
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CSRCS += hook.c
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ifeq ($(CONFIG_MM_KASAN),y)
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ifeq ($(CONFIG_ARCH_TOOLCHAIN_GNU),y)
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ifeq ($(CONFIG_MM_KASAN_GENERIC),y)
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CSRCS += generic.c
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CFLAGS += -fno-sanitize=kernel-address
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endif
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ifeq ($(CONFIG_MM_KASAN_SW_TAGS),y)
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CSRCS += sw_tags.c
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CFLAGS += -fno-sanitize=kernel-hwaddress
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endif
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ifeq ($(CONFIG_LTO_NONE),n)
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CFLAGS += -fno-lto
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endif
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endif
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endif
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CFLAGS += -fno-builtin
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# Add the core heap directory to the build
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DEPPATH += --dep-path kasan
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VPATH += :kasan
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