[qemu][cortex-m4] Support qemu-m4 target.

.gitignore

@@ -11,3 +11,4 @@ t
 tagit
 blk.bin
 *.dSYM
+scripts/toolpaths.local

project/qemu-m4-test.mk

@@ -0,0 +1,8 @@
+# main project for qemu-m4
+MODULES += \
+	app/shell
+
+include project/virtual/test.mk
+include project/virtual/fs.mk
+include project/virtual/minip.mk
+include project/target/qemu-m4.mk

project/target/qemu-m4.mk

@@ -0,0 +1,4 @@
+# main project for qemu-m4
+TARGET := qemu-m4
+
+WITH_LINKER_GC := 0

scripts/do-qemum4

@@ -0,0 +1,57 @@
+#!/bin/bash
+DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+DEFAULT_TOOLPATH="$DIR/toolpaths.default"
+if [ -e "$DEFAULT_TOOLPATH" ]
+then
+  source $DEFAULT_TOOLPATH
+fi
+
+function HELP {
+    echo "help:"
+    echo "-c cmpctmalloc instead of dlmalloc"
+    echo "-M miniheap instead of dlmalloc"
+    echo "-h for help"
+    echo "all arguments after -- are passed to qemu directly"
+    exit 1
+}
+
+DO_CMPCTMALLOC=0
+DO_MINIHEAP=0
+MEMSIZE=8
+
+while getopts bdhm:cMnt6 FLAG; do
+    case $FLAG in
+        c) DO_CMPCTMALLOC=1;;
+        M) DO_MINIHEAP=1;;
+        M) DO_MINIHEAP=1;;
+        h) HELP;;
+        \?)
+            echo unrecognized option
+            HELP
+    esac
+done
+
+shift $((OPTIND-1))
+
+if [ -z "$QEMUM4" ]; then 
+    echo "QEMUM4 is not defined. Set QEMUM4='path/to/qemu-m4' inside scripts/toolpaths.local"
+    exit 1
+fi
+
+PROJECT="qemu-m4-test"
+
+ARGS=" -serial tcp::12345,server,nowait "    # Logs
+ARGS+=" -serial tcp::12344,server,nowait "    # Debug
+ARGS+=" -serial stdio"                        # Console
+ARGS+=" -machine pebble-s4-bb -cpu cortex-m4"
+ARGS+=" -pflash build-${PROJECT}/lk.bin "
+
+if [ $DO_CMPCTMALLOC == 1 ]; then
+	MAKE_VARS=LK_HEAP_IMPLEMENTATION=cmpctmalloc
+elif [ $DO_MINIHEAP == 1 ]; then
+	MAKE_VARS=LK_HEAP_IMPLEMENTATION=miniheap
+fi
+
+make $MAKE_VARS $PROJECT -j4 &&
+echo $QEMUM4 $ARGS $@ &&
+$QEMUM4 $ARGS $@

scripts/toolpaths.default

@@ -0,0 +1,8 @@
+#!/bin/bash
+
+DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+LOCAL_TOOLPATH="$DIR/toolpaths.local"
+if [ -e "$LOCAL_TOOLPATH" ]
+then
+  source $LOCAL_TOOLPATH
+fi

target/qemu-m4/include/target/debugconfig.h

@@ -0,0 +1,29 @@
+/*
+ * Copyright (c) 2012 Travis Geiselbrecht
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files
+ * (the "Software"), to deal in the Software without restriction,
+ * including without limitation the rights to use, copy, modify, merge,
+ * publish, distribute, sublicense, and/or sell copies of the Software,
+ * and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+ * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+#ifndef __TARGET_DEBUGCONFIG_H
+#define __TARGET_DEBUGCONFIG_H
+
+// UART 3 is the console
+#define DEBUG_UART 3
+
+#endif

target/qemu-m4/init.c

@@ -0,0 +1,48 @@
+/*
+ * Copyright (c) 2012 Travis Geiselbrecht
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files
+ * (the "Software"), to deal in the Software without restriction,
+ * including without limitation the rights to use, copy, modify, merge,
+ * publish, distribute, sublicense, and/or sell copies of the Software,
+ * and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+ * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+#include <err.h>
+#include <debug.h>
+#include <trace.h>
+#include <target.h>
+#include <compiler.h>
+#include <dev/gpio.h>
+#include <stm32f4xx_usart.h>
+#include <stm32f4xx_rcc.h>
+#include <stm32f4xx_gpio.h>
+#include <platform/stm32.h>
+#include <platform/gpio.h>
+#include <target/debugconfig.h>
+
+void target_early_init(void)
+{
+	stm32_debug_early_init();
+}
+
+void target_init(void)
+{
+	TRACE_ENTRY;
+
+	stm32_debug_init();
+
+	TRACE_EXIT;
+}

target/qemu-m4/rules.mk

@@ -0,0 +1,22 @@
+LOCAL_DIR := $(GET_LOCAL_DIR)
+
+MODULE := $(LOCAL_DIR)
+
+STM32_CHIP := stm32f407
+
+PLATFORM := stm32f4xx
+
+GLOBAL_DEFINES += \
+	ENABLE_UART2=1 \
+	ENABLE_UART3=1 \
+	HSE_VALUE=8000000 \
+	PLL_M_VALUE=8 \
+	PLL_N_VALUE=336 \
+	PLL_P_VALUE=2 \
+    PKTBUF_POOL_SIZE=16
+
+MODULE_SRCS += \
+	$(LOCAL_DIR)/init.c
+
+include make/module.mk
+