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libc: generate nslexer.c,nsparser.c at build stage

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The files are generated via flex and bison. Until now, this step was
performed when preparing the libc port. Unfortunately, the generated
files have subtle differences depending on the flex/bison versions
installed in the host. For example, the bison version number appears in
the generated code. This, in turn, breaks the hash mechanism of the
depot where a src/libc archive ends up being slightly different when
created on different hosts.

By moving the code generation to the build stage, the src/libc archive
merely contains the nslexer.l and nsparser.y source files but not the
generated files.
This commit is contained in:
Norman Feske 2017-08-18 14:37:35 +02:00 committed by Christian Helmuth
parent ff935ee1b0
commit aec4f0db2d
3 changed files with 23 additions and 19 deletions
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15
repos/libports/lib/mk/libc-net.mk
View File

@ -33,3 +33,18 @@ INC_DIR += $(LIBC_PORT_DIR)/include/libc/sys
INC_DIR += $(LIBC_DIR)/lib/libc/resolv
vpath %.c $(LIBC_NET_DIR)
nslexer.o: nsparser.c nsparser.c
nslexer.c: nslexer.l
$(MSG_CONVERT)$(notdir $@)
$(VERBOSE)flex -P_nsyy -t $< | sed -e '/YY_BUF_SIZE/s/16384/1024/' > $@
vpath nslexer.l $(LIBC_NET_DIR)
nsparser.c: nsparser.y
$(MSG_CONVERT)$(notdir $@)
$(VERBOSE)bison -d -p_nsyy $< \
--defines=$(LIBC_PORT_DIR)/src/lib/libc/lib/libc/net/nsparser.h --output=$@
vpath nsparser.y $(LIBC_NET_DIR)

2
repos/libports/ports/libc.hash
View File

@ -1 +1 @@
0885f819fb527fb3930cf56b7bc118f364c6f074
cefebffc6e8f129acb24de192373731461abe2f6

25
repos/libports/ports/libc.port
View File

@ -197,23 +197,6 @@ DIR_CONTENT(include/libc-arm/machine) := \
# Rules for generating files
#
generated_files += src/lib/libc/lib/libc/net/nslexer.c
src/lib/libc/lib/libc/net/nslexer.l : $(DOWNLOADS)
src/lib/libc/lib/libc/net/nslexer.c: src/lib/libc/lib/libc/net/nslexer.l
@$(MSG_GENERATE)$(notdir $@)
$(VERBOSE)flex -P_nsyy -t $< | sed -e '/YY_BUF_SIZE/s/16384/1024/' > $@
generated_files += src/lib/libc/lib/libc/net/nsparser.c
src/lib/libc/lib/libc/net/nsparser.y : $(DOWNLOADS)
src/lib/libc/lib/libc/net/nsparser.c: src/lib/libc/lib/libc/net/nsparser.y
@$(MSG_GENERATE)$(notdir $@)
$(VERBOSE)bison -d -p_nsyy $< \
--defines=src/lib/libc/lib/libc/net/nsparser.h --output=$@
src/lib/libc/include/rpcsvc/nis.h: src/lib/libc/include/rpcsvc/nis_object.x
@$(MSG_GENERATE)$(notdir $@)
$(VERBOSE)rpcgen -C -h -DWANT_NFS3 $< -o $@
@ -224,7 +207,7 @@ src/lib/libc/include/rpcsvc/nis_object.x : $(DOWNLOADS)
@$(MSG_GENERATE)$(notdir $@)
$(VERBOSE)rpcgen -C -h -DWANT_NFS3 $< -o $@
generated_files += \
generated_rpcsvc_files := \
$(addprefix src/lib/libc/include/rpcsvc/,\
bootparam_prot.h nfs_prot.h nlm_prot.h rstat.h ypupdate_prot.h \
crypt.h nis_cache.h pmap_prot.h rwall.h yp.h \
@ -233,6 +216,12 @@ generated_files += \
mount.h nis.h rquota.h yppasswd.h) \
src/lib/libc/include/rpc/rpcb_prot.h
$(generated_rpcsvc_files:.h=.x): $(DOWNLOADS)
$(generated_rpcsvc_files) : $(generated_rpcsvc_files:.h=.x)
generated_files += $(generated_rpcsvc_files)
# generate files before assembling the public include directory tree
_dirs: $(generated_files)
$(generated_files) : $(DOWNLOADS)