From 858a9f5d01266dad8152c188da2609d3589184c7 Mon Sep 17 00:00:00 2001
From: NIIBE Yutaka <gniibe@fsij.org>
Date: Mon, 18 Nov 2019 08:25:56 +0900
Subject: [PATCH] Have a entry-gnu-linux.c.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
---
 ChangeLog         |  6 ++++++
 entry-gnu-linux.c | 45 +++++++++++++++++++++++++++++++++++++++++++++
 entry.c           | 15 ---------------
 rules.mk          |  8 +++++++-
 4 files changed, 58 insertions(+), 16 deletions(-)
 create mode 100644 entry-gnu-linux.c

diff --git a/ChangeLog b/ChangeLog
index 696682d..1760ec4 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2019-11-18  NIIBE Yutaka  <gniibe@fsij.org>
+
+	* rules.mk (CSRC): Change the rule of entry*.c.
+	* entry.c: It's only for Cortex-M, now.
+	* entry-gnu-linux.c: New file.
+
 2019-11-18  NIIBE Yutaka  <gniibe@fsij.org>
 
 	* entry.c: Use chopstx-cortex-m.h.
diff --git a/entry-gnu-linux.c b/entry-gnu-linux.c
new file mode 100644
index 0000000..b4e7d29
--- /dev/null
+++ b/entry-gnu-linux.c
@@ -0,0 +1,45 @@
+/*
+ * entry.c - Entry routine.
+ *
+ * Copyright (C) 2017, 2019
+ *               Flying Stone Technology
+ * Author: NIIBE Yutaka <gniibe@fsij.org>
+ *
+ * This file is a part of Chopstx, a thread library for embedded.
+ *
+ * Chopstx is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Chopstx is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * As additional permission under GNU GPL version 3 section 7, you may
+ * distribute non-source form of the Program without the copy of the
+ * GNU GPL normally required by section 4, provided you inform the
+ * recipients of GNU GPL by a written offer.
+ *
+ */
+
+#include <stdint.h>
+#include <stdlib.h>
+#include <chopstx.h>
+
+int emulated_main (int, const char **);
+void chx_init (struct chx_thread *);
+void chx_systick_init (void);
+extern struct chx_thread main_thread;
+
+int
+main (int argc, const char *argv[])
+{
+  chx_init (&main_thread);
+  chx_systick_init ();
+  emulated_main (argc, argv);
+}
diff --git a/entry.c b/entry.c
index b8f59a0..5260416 100644
--- a/entry.c
+++ b/entry.c
@@ -33,20 +33,6 @@
 
 #include "board.h"
 
-#ifdef GNU_LINUX_EMULATION
-int emulated_main (int, const char **);
-void chx_init (struct chx_thread *);
-void chx_systick_init (void);
-extern struct chx_thread main_thread;
-
-int
-main (int argc, const char *argv[])
-{
-  chx_init (&main_thread);
-  chx_systick_init ();
-  emulated_main (argc, argv);
-}
-#else
 #if defined(USE_SYS3) || defined(USE_SYS_CLOCK_GPIO_SETTING)
 #define REQUIRE_CLOCK_GPIO_SETTING_IN_SYS
 #include "sys.h"
@@ -258,4 +244,3 @@ handler vector_table[] __attribute__ ((section(".startup.vectors"))) = {
   chx_handle_intr,  chx_handle_intr,  chx_handle_intr,  chx_handle_intr,
 #endif
 };
-#endif
diff --git a/rules.mk b/rules.mk
index fc811c0..1174c60 100644
--- a/rules.mk
+++ b/rules.mk
@@ -1,6 +1,12 @@
 # Chopstx make rules.
 
-CSRC += $(CHOPSTX)/entry.c $(CHOPSTX)/chopstx.c
+ifeq ($(EMULATION),)
+CSRC += $(CHOPSTX)/entry.c
+else
+CSRC += $(CHOPSTX)/entry-gnu-linux.c
+endif
+
+CSRC += $(CHOPSTX)/chopstx.c
 
 ifneq ($(USE_EVENTFLAG),)
 CSRC += $(CHOPSTX)/eventflag.c