nuttx/libs/libc/assert/Make.defs
chao an 4b94dc3092 toolchain/gcc: fix linker error if enable STACK_CANARIES/LTO at same time
If -fstack-protector-all is enabled, gcc linker will need GCC
SSP(Stack Smashing Protector) support, Since the implement of SSP
is related to the OS, most of embedded toolchain does not provide
ssp support, so an error will be reported when linking:

enable CONFIG_LTO_FULL && CONFIG_STACK_CANARIES

arm-none-eabi/bin/ld: cannot find -lssp_nonshared: No such file or directory
arm-none-eabi/bin/ld: cannot find -lssp: No such file or directory

https://github.com/gcc-mirror/gcc/blob/master/gcc/gcc.cc#L983-L985

Since nuttx has already implemented SSP related hook functions,
so in this PR, we filter out this option in the link phase to ensure that
the implementation of lssp/lssp_nonshared will not be referenced

Signed-off-by: chao an <anchao@xiaomi.com>
2023-07-21 01:13:34 +08:00

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############################################################################
# libs/libc/assert/Make.defs
#
# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements. See the NOTICE file distributed with
# this work for additional information regarding copyright ownership. The
# ASF licenses this file to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance with the
# License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
#
############################################################################
CSRCS += lib_assert.c
ifeq ($(CONFIG_STACK_CANARIES),y)
CSRCS += lib_stackchk.c
endif
assert/lib_assert.c_CFLAGS += -fno-lto
assert/lib_stackchk.c_CFLAGS += -fno-lto
# Add the assert directory to the build
DEPPATH += --dep-path assert
VPATH += :assert