time-bare: new directory

This commit separates to its own directory the timing code specific
to bere linux implementations.  If you build with ARCH=bare-i386
or ARCH=bare-i386-64, TIME=bare is automatically selected.

Please note how bare builds don't allow externally-set TIME=, as the
architecture Makefile forces "TIME := bare" (not "TIME ?= bare").

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

arch-bare-i386/Makefile

@@ -18,15 +18,17 @@ LIBARCH := $A/libarch.a
 
 OBJ-libarch := $L/bare-startup.o \
 	$L/main-loop.o \
-	$L/bare-socket.o \
 	$L/bare-io.o \
-	$L/bare-time.o \
 	$A/syscalls.o \
 	lib/libc-functions.o \
 	lib/dump-funcs.o \
 	lib/cmdline.o \
 	lib/div64.o
 
+# We only support "bare" time operations
+TIME := bare
+include time-bare/Makefile
+
 $(LIBARCH): $(OBJ-libarch)
 	$(AR) r $@ $^
 

arch-bare-x86-64/Makefile

@@ -18,9 +18,7 @@ LIBARCH := $A/libarch.a
 
 OBJ-libarch := $L/bare-startup.o \
 	$L/main-loop.o \
-	$L/bare-socket.o \
 	$L/bare-io.o \
-	$L/bare-time.o \
 	$A/syscall.o \
 	$A/syscalls.o \
 	lib/libc-functions.o \
@@ -28,6 +26,10 @@ OBJ-libarch := $L/bare-startup.o \
 	lib/cmdline.o \
 	lib/div64.o
 
+# We only support "bare" time operations
+TIME := bare
+include time-bare/Makefile
+
 $(LIBARCH): $(OBJ-libarch)
 	$(AR) r $@ $^
 

time-bare/Makefile

+# Alessandro Rubini for CERN, 2013 -- public domain
+
+# This Makefile in included by architectures that select time-bare
+# Object files are added to libarch, so they are picked on demand.
+
+OBJ-libarch += \
+	time-bare/bare-time.o \
+	time-bare/bare-socket.o