nptl: rephrase *.sym handling

Avoids circular dependency warning from make by generating the .h
directly from the .sym files, elimination intermediate files.

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

libpthread/nptl/Makefile.in

@@ -92,19 +92,12 @@ $(top_builddir)lib/libpthread.a: $(libpthread-a-y)
 	$(Q)$(RM) $@
 	$(do_ar)
 
-#
-# Create 'pthread-errnos.h' header file.
-#
-CFLAGS-gen_pthread-errnos.c = -S
-
-$(libpthread_OUT)/gen_pthread-errnos.c: $(libpthread_DIR)/pthread-errnos.sym | $(libpthread_OUT)
-	$(do_awk) $(top_srcdir)extra/scripts/gen-as-const.awk $< > $@
-
-$(libpthread_OUT)/gen_pthread-errnos.s: $(libpthread_OUT)/gen_pthread-errnos.c | headers
-	$(compile.c)
-libpthread-generated-y += $(libpthread_OUT)/gen_pthread-errnos.s
-$(libpthread_OUT)/pthread-errnos.h: $(libpthread_OUT)/gen_pthread-errnos.s
-	$(do_sed) $(PTHREAD_GENERATE_MANGLE) $< > $@
+$(libpthread_OUT)/pthread-errnos.h: $(top_srcdir)extra/scripts/gen-as-const.awk | headers
+$(libpthread_OUT)/pthread-errnos.h: $(libpthread_DIR)/pthread-errnos.sym
+	@$(disp_gen)
+	$(do_awk) $(top_srcdir)extra/scripts/gen-as-const.awk $< \
+	| $(CC) $(CFLAGS) -x c - -S -o - \
+	| $(SED) $(PTHREAD_GENERATE_MANGLE) > $@
 	@if test ! -s $@ ; then rm -f $@ ; false ; fi
 
 pregen-headers-$(UCLIBC_HAS_THREADS_NATIVE) += $(libpthread_OUT)/pthread-errnos.h
@@ -132,7 +125,6 @@ headers_clean-y += HEADERCLEAN_libpthread/nptl
 
 HEADERCLEAN_libpthread/nptl:
 	$(do_rm) $(nptl_headers_bootstrap) \
-	      $(addprefix $(libpthread_OUT)/gen_pthread-errnos., c s) \
 	      $(libpthread_OUT)/pthread-errnos.h
 
 CLEAN_libpthread/nptl:

libpthread/nptl/sysdeps/Makefile.commonarch

@@ -40,15 +40,12 @@ librt_arch_COBJ = $(patsubst %.c,$(libpthread_arch_OUT)/%.o,$(librt_arch_CSRC))
 librt_arch_SOBJ = $(patsubst %.S,$(libpthread_arch_OUT)/%.o,$(librt_arch_SSRC))
 librt_arch_OBJS = $(librt_arch_COBJ) $(librt_arch_SOBJ)
 
-CFLAGS-gen_tcb-offsets.c = -S
-$(libpthread_arch_OUT)/gen_tcb-offsets.c: $(libpthread_arch_DIR)/tcb-offsets.sym | $(libpthread_arch_OUT)
-	$(do_awk) $(top_srcdir)extra/scripts/gen-as-const.awk $< > $@
-
-$(libpthread_arch_OUT)/gen_tcb-offsets.s: $(libpthread_arch_OUT)/gen_tcb-offsets.c | headers
-	$(compile.c)
-libpthread-generated-y += $(libpthread_arch_OUT)/gen_tcb-offsets.s
-$(libpthread_arch_OUT)/tcb-offsets.h: $(libpthread_arch_OUT)/gen_tcb-offsets.s
-	$(do_sed) $(PTHREAD_GENERATE_MANGLE) $< > $@
+$(libpthread_arch_OUT)/tcb-offsets.h: $(top_srcdir)extra/scripts/gen-as-const.awk | headers
+$(libpthread_arch_OUT)/tcb-offsets.h: $(libpthread_arch_DIR)/tcb-offsets.sym
+	@$(disp_gen)
+	$(do_awk) $(top_srcdir)extra/scripts/gen-as-const.awk $< \
+	| $(CC) $(CFLAGS) -x c - -S -o - \
+	| $(SED) $(PTHREAD_GENERATE_MANGLE) > $@
 	@if test ! -s $@ ; then rm -f $@ ; false ; fi
 
 pregen-headers-$(UCLIBC_HAS_THREADS_NATIVE) += $(libpthread_arch_OUT)/tcb-offsets.h
@@ -59,8 +56,7 @@ headers_clean-y+= HEADERCLEAN_$(subst $(top_builddir),,$(libpthread_arch_OUT))
 CLEAN_$(subst $(top_builddir),,$(libpthread_arch_OUT)):
 	$(do_rm) $(addprefix $(libpthread_arch_OUT)/*., o os oS)
 HEADERCLEAN_$(subst $(top_builddir),,$(libpthread_arch_OUT)):
-	$(do_rm) $(libpthread_arch_OUT)/tcb-offsets.h \
-		$(addprefix $(libpthread_arch_OUT)/gen_tcb-offsets., c h s)
+	$(do_rm) $(libpthread_arch_OUT)/tcb-offsets.h
 ifneq ($(TARGET_SUBARCH),)
 objclean-y     +=       CLEAN_$(subst $(top_builddir),,$(libpthread_subarch_OUT))
 CLEAN_$(subst $(top_builddir),,$(libpthread_subarch_OUT)):

libpthread/nptl/sysdeps/unix/sysv/linux/Makefile.commonarch

@@ -166,29 +166,15 @@ CFLAGS-OMIT-timer_settime.c = -DIS_IN_libpthread
 #ASFLAGS-write.S = -D_LIBC_REENTRANT
 #ASFLAGS-waitpid.S = -D_LIBC_REENTRANT
 
-#
-# Create header files.
-#
-CFLAGS-gen_lowlevelbarrier.c = -S
-CFLAGS-gen_lowlevelcond.c = -S
-CFLAGS-gen_lowlevelrobustlock.c = -S
-CFLAGS-gen_lowlevelrwlock.c = -S
-CFLAGS-gen_pthread-pi-defines.c = -S
-CFLAGS-gen_structsem.c = -S
-CFLAGS-gen_unwindbuf.c = -S
-
 PTHREAD_LINUX_SYM   := $(notdir $(wildcard $(libpthread_linux_DIR)/*.sym))
-PTHREAD_LINUX_SYM_C := $(addprefix $(libpthread_linux_OUT)/gen_,$(PTHREAD_LINUX_SYM:.sym=.c))
-PTHREAD_LINUX_SYM_S := $(PTHREAD_LINUX_SYM_C:.c=.s)
 PTHREAD_LINUX_SYM_H := $(addprefix $(libpthread_linux_OUT)/,$(PTHREAD_LINUX_SYM:.sym=.h))
 
-$(PTHREAD_LINUX_SYM_C): $(libpthread_linux_OUT)/gen_%.c: $(libpthread_linux_DIR)/%.sym | $(libpthread_linux_OUT)
-	$(do_awk) $(top_srcdir)extra/scripts/gen-as-const.awk $< > $@
-$(PTHREAD_LINUX_SYM_S): $(libpthread_linux_OUT)/gen_%.s: $(libpthread_linux_OUT)/gen_%.c | headers
-	$(compile.c)
-libpthread-generated-y += $(PTHREAD_LINUX_SYM_S)
-$(PTHREAD_LINUX_SYM_H): $(libpthread_linux_OUT)/%.h: $(libpthread_linux_OUT)/gen_%.s
-	$(do_sed) $(PTHREAD_GENERATE_MANGLE) $< > $@
+$(PTHREAD_LINUX_SYM_H): $(top_srcdir)extra/scripts/gen-as-const.awk | headers
+$(PTHREAD_LINUX_SYM_H): $(libpthread_linux_OUT)/%.h: $(libpthread_linux_DIR)/%.sym
+	@$(disp_gen)
+	$(do_awk) $(top_srcdir)extra/scripts/gen-as-const.awk $< \
+	| $(CC) $(CFLAGS) -x c - -S -o - \
+	| $(SED) $(PTHREAD_GENERATE_MANGLE) > $@
 	@if test ! -s $@ ; then rm -f $@ ; false ; fi
 
 pregen-headers-$(UCLIBC_HAS_THREADS_NATIVE) += $(PTHREAD_LINUX_SYM_H)
@@ -200,8 +186,7 @@ $(ALL_HEADERS_BITS_PTHREAD): $(top_builddir)include/bits/%: | $(top_builddir)inc
 	$(do_ln) $(call rel_srcdir)$(libpthread_linux_DIR)/bits/$(@F) $@
 
 HEADERCLEAN_libpthread/nptl/sysdeps/unix/sysv/linux:
-	$(do_rm) $(PTHREAD_LINUX_SYM_C) $(PTHREAD_LINUX_SYM_S) \
-		$(PTHREAD_LINUX_SYM_H)
+	$(do_rm) $(PTHREAD_LINUX_SYM_H)
 
 CLEAN_libpthread/nptl/sysdeps/unix/sysv/linux:
 	$(do_rm) $(addprefix $(libpthread_linux_OUT)/*., o os oS)