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sim: Suppress "has no symbols" warnings for macOS

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Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
This commit is contained in:
Xiang Xiao 2020-05-01 22:25:32 +08:00 committed by patacongo
parent 261ce70e94
commit c1beda50f8
2 changed files with 51 additions and 0 deletions
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46
boards/sim/sim/sim/include/dummy.h Normal file
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@ -0,0 +1,46 @@
/****************************************************************************
* boards/sim/sim/sim/include/dummy.h
*
* 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.
*
****************************************************************************/
#ifndef __BOARDS_SIM_SIM_SIM_INCLUDE_DUMMY_H
#define __BOARDS_SIM_SIM_SIM_INCLUDE_DUMMY_H
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
#define DUMMY_NAME(name) DUMMY_NAME_(dummy_, name)
#define DUMMY_NAME_(prefix, name) prefix##name
/****************************************************************************
* Public Function Prototypes
****************************************************************************/
/* ranlib on macOS will generate "has no symbols" warning if the static
* library don't expose any public symbol, so let's always generate a dummy
* global function to overcome this issue.
*/
#ifndef __ASSEMBLY__
void DUMMY_NAME(CKSUM_SELF)(void)
{
}
#endif
#endif /* __BOARDS_SIM_SIM_SIM_INCLUDE_DUMMY_H */

5
boards/sim/sim/sim/scripts/Make.defs
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@ -47,6 +47,11 @@ ARCHINCLUDES = -I. -isystem $(TOPDIR)/include
ARCHINCLUDESXX = -I. -isystem $(TOPDIR)/include -isystem $(TOPDIR)/include/cxx
ARCHSCRIPT =
ifeq ($(CONFIG_HOST_MACOS),y)
ARCHDEFINES += -DCKSUM_SELF=$(if $<,$(word 1,$(shell cksum $<)))
ARCHINCLUDES += -include $(TOPDIR)/boards/sim/sim/sim/include/dummy.h
endif
# Add -fno-common because macOS "ld -r" doesn't seem to pick objects
# for common symbols.
ARCHCPUFLAGS += -fno-common