toolchain/ghs: add ghs link script for mps2-an500 platform

Signed-off-by: yanghuatao <yanghuatao@xiaomi.com>

arch/arm/src/armv7-m/Toolchain.defs

@@ -133,6 +133,21 @@ else ifeq ($(CONFIG_ARM_TOOLCHAIN_ARMCLANG),y)
     LDFLAGS += --cpu=Cortex-M3
   endif
 
+else ifeq ($(CONFIG_ARM_TOOLCHAIN_GHS),y)
+  MKDEP = $(TOPDIR)$(DELIM)tools$(DELIM)mknulldeps.sh
+
+  undefine PREPROCESS
+  define PREPROCESS
+    $(ECHO_BEGIN)"CPP: $1->$2 "
+    $(Q) $(CPP) $(CPPFLAGS) $($(strip $1)_CPPFLAGS) -filetype.cpp $1 -o $2
+    $(ECHO_END)
+  endef
+
+  undefine ARCHIVE
+  define ARCHIVE
+    $(AR) $2 -archive -o $1
+  endef
+
 endif
 
 ifeq ($(CONFIG_ARMV7M_STACKCHECK),y)

boards/arm/mps/mps2-an500/scripts/Make.defs

@@ -22,7 +22,19 @@ include $(TOPDIR)/.config
 include $(TOPDIR)/tools/Config.mk
 include $(TOPDIR)/arch/arm/src/armv7-m/Toolchain.defs
 
-LDSCRIPT = flash.ld
+ifeq ($(CONFIG_ARM_TOOLCHAIN_GHS),y)
+  define POSTBUILD
+    $(GMEMFILE) nuttx -o nuttx.bin
+  endef
+
+  LDSCRIPT = ghs-flash.ld
+else
+  define POSTBUILD
+    $(OBJCOPY) -O binary nuttx nuttx.bin
+  endef
+
+  LDSCRIPT = flash.ld
+endif
 
 ARCHSCRIPT += $(BOARD_DIR)$(DELIM)scripts$(DELIM)$(LDSCRIPT)
 

boards/arm/mps/mps2-an500/scripts/ghs-flash.ld

@@ -0,0 +1,98 @@
+/****************************************************************************
+ * boards/arm/mps/mps2-an500/scripts/ghs-flash.ld
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.  The
+ * ASF licenses this file to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the
+ * License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ ****************************************************************************/
+
+MEMORY
+{
+  flash (rwx) : ORIGIN = 0x00000000, LENGTH = 4M
+}
+
+SECTIONS
+{
+    .text ALIGN(4) : {
+        _stext = ABSOLUTE(.);
+        *(.vectors)
+        *(.text)
+        "*(.text.*)"
+        *(.fixup)
+        *(.gnu.warning)
+        *(.rodata)
+        *(.glue_7)
+        *(.glue_7t)
+        *(.got)
+        *(.gcc_except_table)
+        _etext = ABSOLUTE(.);
+    } > flash
+
+    .syscall : > .
+
+    .init_section ALIGN(4) : {
+        _sinit = ABSOLUTE(.);
+        *(.init_array)
+        *(.ctors)
+        _einit = ABSOLUTE(.);
+    } > flash
+
+    .ARM.extab ALIGN(4) : {
+        "*(.ARM.extab*)"
+    } > flash
+
+    .ARM.exidx ALIGN(4) : {
+        __exidx_start = ABSOLUTE(.);
+        "*(.ARM.exidx*)"
+        __exidx_end = ABSOLUTE(.);
+    } > flash
+
+    .tdata ALIGN(4) : {
+        _stdata = ABSOLUTE(.);
+        *(.tdata)
+        "*(.tdata.*)"
+        _etdata = ABSOLUTE(.);
+    } > flash
+
+    .tbss : {
+        _stbss = ABSOLUTE(.);
+        *(.tbss)
+        *(.tcommon)
+        _etbss = ABSOLUTE(.);
+    } > flash
+
+    _eronly = ENDADDR(.tbss);
+
+    .ram_vectors : {
+        *(.ram_vectors)
+    } > flash
+
+    .data ALIGN(4) : {
+        _sdata = ABSOLUTE(.);
+        *(.data)
+        "*(.data.*)"
+        . = ALIGN(4);
+        _edata = ABSOLUTE(.);
+    } > flash
+
+    .bss ALIGN(4) : {
+        _sbss = ABSOLUTE(.);
+        *(.bss)
+        "*(.bss.*)"
+        *(COMMON)
+        . = ALIGN(4);
+        _ebss = ABSOLUTE(.);
+    } > flash
+}