libbuiltin/Makefile: Modify the libbuiltin makefile to standard

1. bin and kbin folders are dynamically generated
2. Context comes before depend, so the bin and kbin folders are created in the context construction phase. When the depend process comes, each library is downloaded, and a relative bin/xxx and kbin/xxx directory is created for each library to place files. This is to prevent duplicate file names.

Signed-off-by: wangmingrong1 <[email protected]>

Author: W-M-R

libs/libbuiltin/Makefile

@@ -38,12 +38,8 @@ CPPOBJS = $(addprefix $(BINDIR)$(DELIM), $(CPPSRCS:.cpp=$(OBJEXT)))
 SRCS = $(ASRCS) $(CSRCS) $(CXXSRCS) $(CPPSRCS)
 OBJS = $(AOBJS) $(COBJS) $(CXXOBJS) $(CPPOBJS)
 
-BUILTIN_CLEANDIR = $(foreach dir,$(LIBBUILTIN),$(dir)/$(dir))
-
-all: $(OBJS)
-	$(call ARCHIVE, $(BIN), $(OBJS))
-
-.PHONY: depend clean distclean context $(LIBBUILTIN)
+all: $(BIN)
+.PHONY: depend clean distclean context
 
 $(AOBJS): $(BINDIR)$(DELIM)%$(OBJEXT): %.S
 	$(call ASSEMBLE, $<, $@)
@@ -57,15 +53,21 @@ $(CXXOBJS): $(BINDIR)$(DELIM)%$(OBJEXT): %.cxx
 $(CPPOBJS): $(BINDIR)$(DELIM)%$(OBJEXT): %.cpp
 	$(call COMPILEXX, $<, $@)
 
-context::
+bin:
+	$(Q) mkdir $@
+
+kbin:
+	$(Q) mkdir $@
+
+context:: bin kbin
 
-.depend: $(LIBBUILTIN)
+.depend: Makefile $(SRCS) $(TOPDIR)$(DELIM).config
 	$(Q) touch $@
 
-depend: .depend
+depend:: .depend
 
-$(BIN): depend
-	$(Q) $(MAKE) all EXTRAFLAGS="$(EXTRAFLAGS)"
+$(BIN): $(OBJS)
+	$(call ARCHIVE, $@, $(OBJS))
 
 # C library for the kernel phase of the two-pass kernel build
 
@@ -75,12 +77,11 @@ $(KBIN): $(OBJS)
 endif
 
 clean:
+	$(call CLEAN)
 	$(call DELFILE, $(BIN))
-	$(Q) $(MAKE) -C bin  clean
-	$(Q) $(MAKE) -C kbin clean
+	$(call DELFILE, $(KBIN))
 
 distclean:: clean
-	$(Q) $(MAKE) -C bin  distclean
-	$(Q) $(MAKE) -C kbin distclean
-	$(call DELFILE, .depend)
-	$(call DELDIR, $(BUILTIN_CLEANDIR))
+	$(call DELDIR, bin)
+	$(call DELDIR, kbin)
+	$(call DELDIR, .depend)

libs/libbuiltin/bin/Makefile

@@ -20,8 +20,6 @@
 
 include $(TOPDIR)/Make.defs
 
-LIBBUILTIN += compiler-rt
-
 COMPILER_RT_VERSION=$(CONFIG_COMPILER_RT_VERSION)
 
 ifeq ($(CONFIG_ARCH_ARM),y)
@@ -34,27 +32,39 @@ else ifeq ($(CONFIG_ARCH_ARM64),y)
   ARCH = aarch64
 endif
 
+COMPILER_RT_OBJDIR = compiler-rt \
+                     compiler-rt/compiler-rt \
+                     compiler-rt/compiler-rt/lib \
+                     compiler-rt/compiler-rt/lib/builtins \
+                     compiler-rt/compiler-rt/lib/builtins/$(ARCH) \
+                     compiler-rt/compiler-rt/lib/profile
+
+BIN_OBJDIR = $(addprefix $(BINDIR)$(DELIM),$(COMPILER_RT_OBJDIR))
+KBIN_OBJDIR = $(addprefix $(KBINDIR)$(DELIM),$(COMPILER_RT_OBJDIR))
+
 ifeq ($(wildcard compiler-rt/compiler-rt/lib),)
+
 compiler-rt-$(COMPILER_RT_VERSION).src.tar.xz:
 	$(call DOWNLOAD,https://github.com/llvm/llvm-project/releases/download/llvmorg-$(COMPILER_RT_VERSION),$@)
 
 compiler-rt/compiler-rt: compiler-rt-$(COMPILER_RT_VERSION).src.tar.xz
 	$(Q) tar -xf $<
 	$(Q) mv compiler-rt-$(COMPILER_RT_VERSION).src $@
 	$(call DELDIR, $<)
+	$(Q) mkdir $(BIN_OBJDIR) $(KBIN_OBJDIR)
 
 compiler-rt: compiler-rt/compiler-rt
-	$(Q) mkdir $(BINDIR)/compiler-rt \
-	           $(BINDIR)/compiler-rt/compiler-rt \
-	           $(BINDIR)/compiler-rt/compiler-rt/lib \
-	           $(BINDIR)/compiler-rt/compiler-rt/lib/builtins \
-	           $(BINDIR)/compiler-rt/compiler-rt/lib/builtins/$(ARCH) \
-	           $(BINDIR)/compiler-rt/compiler-rt/lib/profile
 
 endif
 
+.PHONY: compiler-rt
+
+depend:: compiler-rt
+
 distclean::
-	$(call DELDIR, $(BINDIR)/compiler-rt)
+	$(call DELDIR, $(BIN_OBJDIR))
+	$(call DELDIR, $(KBIN_OBJDIR))
+	$(call DELDIR, compiler-rt/compiler-rt)
 
 FLAGS += ${INCDIR_PREFIX}$(CURDIR)/compiler-rt/compiler-rt/include
 FLAGS += ${INCDIR_PREFIX}$(CURDIR)/compiler-rt/compiler-rt/lib/builtins

libs/libbuiltin/compiler-rt/Make.defs

@@ -122,7 +122,7 @@ CLEANDIRS += syscall
 endif
 endif
 
-CONTEXTDIRS += libs$(DELIM)libc
+CONTEXTDIRS += libs$(DELIM)libc libs$(DELIM)libbuiltin
 
 ifeq ($(CONFIG_LIBM_TOOLCHAIN)$(CONFIG_LIBM_NONE),)
 CONTEXTDIRS += libs$(DELIM)libm