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c027e7c3e4
During the Toybox port to NuttX, Claude noticed that changes in the menuconfig weren't taking affect. This issue exists for a long time on NuttX, in fact BayLibre's presentation from 2017 make jokes about our building system not been reliable: https://www.youtube.com/watch?v=XUJK2htXxKw&t=320s Stale archive members from $(AR)'s additive-only behavior can linger after Kconfig toggles change which files provide a symbol, causing dead weight or "multiple definition" link errors on incremental builds. Fixed by splitting ARCHIVE into two macros: ARCHIVE keeps the original additive behavior for apps/libapps.a, which many independent subdirectories contribute to across a build, while the new ARCHIVE_REBUILD deletes then archives for the far more common case of a single Makefile building its own self-contained $(OBJS) - all 39 such call sites now use it. Assisted-By: Claude Sonnet 5 Signed-off-by: Alan C. Assis <acassis@gmail.com>
135 lines
3.4 KiB
Makefile
135 lines
3.4 KiB
Makefile
############################################################################
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# libs/libc/zoneinfo/Makefile
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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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include $(TOPDIR)/Make.defs
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ifeq ($(CONFIG_LIBC_ZONEINFO_ROMFS),y)
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CSRCS += tzromfs.c
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endif
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AOBJS = $(ASRCS:.S=$(OBJEXT))
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COBJS = $(CSRCS:.c=$(OBJEXT))
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SRCS = $(ASRCS) $(CSRCS)
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OBJS = $(AOBJS) $(COBJS)
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ZONEINFO_PATH = $(TOPDIR)/libs/libc/zoneinfo
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TZBIN_PATH = $(ZONEINFO_PATH)/tzbin
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TZCODE_PATH = $(ZONEINFO_PATH)/tzcode
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# Common build
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all: .built
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.PHONY: romfs register context depend clean distclean
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$(AOBJS): %$(OBJEXT): %.S
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$(call ASSEMBLE, $<, $@)
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$(COBJS): %$(OBJEXT): %.c
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$(call COMPILE, $<, $@)
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.built: .tzbuilt romfs $(OBJS)
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$(call ARCHIVE_REBUILD, ..$(DELIM)$(BIN), $(OBJS))
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$(Q) touch .built
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# ROMFS file system containing the TZ database
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ifeq ($(CONFIG_LIBC_ZONEINFO_ROMFS),y)
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checkgenromfs:
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@genromfs -h 1>/dev/null 2>&1 || { \
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echo "Host executable genromfs not available in PATH"; \
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echo "You may need to download in from http://romfs.sourceforge.net/"; \
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exit 1; \
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}
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romfs_zoneinfo.img : checkgenromfs .tzbuilt
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@genromfs -f $@ -d $(TZBIN_PATH)/usr/share/zoneinfo -V "TZDatbase" || { echo "genromfs failed" ; exit 1 ; }
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romfs_zoneinfo.h : romfs_zoneinfo.img
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@xxd -i $< >$@ || { echo "xxd of $< failed" ; exit 1 ; }
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romfs: romfs_zoneinfo.h
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else
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romfs:
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endif # CONFIG_LIBC_ZONEINFO_ROMFS
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# Build TZ database
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tzcode:
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mkdir tzcode
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tzbin:
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mkdir tzbin
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tzcode-latest.tar.gz:
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$(call DOWNLOAD,ftp://ftp.iana.org/tz,tzcode-latest.tar.gz)
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tzdata-latest.tar.gz:
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$(call DOWNLOAD,ftp://ftp.iana.org/tz,tzdata-latest.tar.gz)
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.tzunpack: tzcode tzcode-latest.tar.gz tzdata-latest.tar.gz
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$(Q) tar zx -C tzcode -f tzcode-latest.tar.gz
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$(Q) tar zx -C tzcode -f tzdata-latest.tar.gz
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$(Q) touch .tzunpack
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.tzbuilt: tzcode tzbin .tzunpack
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$(Q) $(MAKE) -C tzcode TOPDIR=$(TZBIN_PATH) install
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$(Q) touch .tzbuilt
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# Create initial context
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context: .tzbuilt romfs
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# Create dependencies
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makedepfile: $(CSRCS:.c=.ddc) $(ASRCS:.S=.dds)
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$(call CATFILE, Make.dep, $^)
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$(call DELFILE, $^)
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.depend: Makefile $(SRCS) $(TOPDIR)$(DELIM).config
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$(Q) $(MAKE) makedepfile
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$(Q) touch $@
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depend: .depend
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clean:
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$(call DELFILE, .built)
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$(call CLEAN)
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distclean: clean
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$(call DELFILE, $(CSRCS:.c=.ddc) $(ASRCS:.S=.dds))
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$(call DELFILE, Make.dep)
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$(call DELFILE, .depend)
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$(call DELFILE, .tzunpack)
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$(call DELFILE, .tzbuilt)
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$(call DELFILE, romfs_zoneinfo.img)
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$(call DELFILE, romfs_zoneinfo.h)
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$(call DELFILE, tzdata-latest.tar.gz)
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$(call DELFILE, tzcode-latest.tar.gz)
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$(call DELDIR, tzbin)
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$(call DELDIR, tzcode)
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-include Make.dep
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