arch-sim: initial commit with directory tree

Kconfig is updated with new arch. It compiles but it's actually doing nothing

arch-sim: initial commit with directory tree
Kconfig is updated with new arch. It compiles but it's actually doing nothing
8d898988 · Pietro Fezzardi · Alessandro Rubini · 899ab83e · 8d898988 · 8d898988
Commit 8d898988 authored Oct 16, 2013 by Pietro Fezzardi Committed by Alessandro Rubini Mar 21, 2014
11 changed files
--- a/Kconfig
+++ b/Kconfig
@@ -44,9 +44,18 @@ config ARCH_WRS
 	help
 	  Build PPSi for use in the WR switch. The computer is a standard
 	  ARM-Linux host with hardware timestamping and internal PLLs
-	  needed to achieve sub-ns synchnonization. 
+	  needed to achieve sub-ns synchronization.
 	  The configuration selects the "White Rabbit" protocol extension.
+config ARCH_SIMULATOR
+	bool "PPSi Simulator (hosted on Linux)"
+	help
+	  Build a PPSi simulator. It's almost a unix full running slave,
+	  with a simulated master stimulating it for test purposes. This
+	  avoids to wait a long time to see how PPSi behaves.
+	  This architecture uses standard Unix system calls, but the
+	  code includes some Linux dependencies.
 endchoice
 config ARCH
@@ -56,6 +65,7 @@ config ARCH
       default "bare-x86-64" if ARCH_BARE_X86_64
       default "wrpc" if ARCH_WRPC
       default "wrs" if ARCH_WRS
+       default "sim" if ARCH_SIMULATOR

--- a/arch-sim/Makefile
+++ b/arch-sim/Makefile
+# All files are under A (short for ARCH): I'm lazy
+A := arch-$(ARCH)
+CFLAGS += -Itools
+OBJ-y += $A/sim-startup.o \
+	$A/main-loop.o \
+	$A/sim-io.o \
+	lib/div64.o
+#	lib/dump-funcs.o \
+#	lib/conf.o \
+#	lib/libc-functions.o \
+#	lib/cmdline.o \
+# Support only "sim" time operations
+TIME := sim
+include time-$(TIME)/Makefile
+all: $(TARGET)
+# to build the target, we need -lstd again, in case we call functions that
+# were not selected yet (e.g., pp_open_globals() ).
+$(TARGET): $(TARGET).o
+	$(CC) -Wl,-Map,$(TARGET).map2 -o $@ $(TARGET).o -lrt
--- a/arch-sim/include/arch/arch.h
+++ b/arch-sim/include/arch/arch.h
+#ifndef __ARCH_H__
+#define __ARCH_H__
+/* Architecture-specific defines, included by top-level stuff */
+#include <arpa/inet.h> /* ntohs etc */
+#include <stdlib.h>    /* abs */
+#endif /* __ARCH_H__ */
--- a/arch-sim/include/arch/constants.h
+++ b/arch-sim/include/arch/constants.h
+#ifndef __PPSI_ARCH_CONSTANTS_H__
+#define __PPSI_ARCH_CONSTANTS_H__
+#ifndef __PPSI_CONSTANTS_H__
+#Warning "Please include <ppsi/constants.h> before <arch/constants.h>"
+#endif
+/* nothing to do here, we keep project-wide defaults */
+#endif /* __PPSI_ARCH_CONSTANTS_H__ */
--- a/arch-sim/main-loop.c
+++ b/arch-sim/main-loop.c
--- a/arch-sim/ppsi-sim.h
+++ b/arch-sim/ppsi-sim.h
+/*
+ * Author: Pietro Fezzardi (pietrofezzardi@gmail.com)
+ *
+ * Released to the public domain
+ */
+/*
+ * These are the functions provided by the various sim files
+ */
+/* the arch_data is the same as unix */
+#define POSIX_ARCH(ppg) ((struct unix_arch_data *)(ppg->arch_data))
+struct unix_arch_data {
+	struct timeval tv;
+};
+extern void sim_main_loop(struct pp_globals *ppg);
--- a/arch-sim/sim-io.c
+++ b/arch-sim/sim-io.c
+/*
+ * Copyright (C) 2011 CERN (www.cern.ch)
+ * Author: Alessandro Rubini
+ *
+ * Released to the public domain
+ */
+#include <stdio.h>
+#include <ppsi/ppsi.h>
+void pp_puts(const char *s)
+{
+	fputs(s, stdout);
+}
--- a/arch-sim/sim-startup.c
+++ b/arch-sim/sim-startup.c
+#include <ppsi/ppsi.h>
+#include "ppsi-sim.h"
+int main(int argc, char **argv)
+{
+	return 0;
+}
--- a/time-sim/Makefile
+++ b/time-sim/Makefile
+# This Makefile in included by architectures that select time-sim
+# as a default, or by builds with explicit TIME=sim.
+# Object files are added straight, as they are always needed
+OBJ-y += time-sim/sim-time.o time-sim/sim-socket.o
--- a/time-sim/sim-socket.c
+++ b/time-sim/sim-socket.c
--- a/time-sim/sim-time.c
+++ b/time-sim/sim-time.c