[LPC4088] Switch to 'hard' FP ABI on GCC

This is consistent with the armcc compilation options.

Author: Bogdan Marinescu

workspace_tools/export/codered_lpc4088_cproject.tmpl

@@ -41,7 +41,7 @@
                                         <listOptionValue builtIn="false" value="&quot;${workspace_loc:/${ProjName}/{{path}}}&quot;"/>
                                     {% endfor %}
                                 </option>
-								<option id="com.crt.advproject.cpp.fpu.192009095" name="Floating point" superClass="com.crt.advproject.cpp.fpu" value="com.crt.advproject.cpp.fpu.fpv4" valueType="enumerated"/>
+								<option id="com.crt.advproject.cpp.fpu.192009095" name="Floating point" superClass="com.crt.advproject.cpp.fpu" value="com.crt.advproject.cpp.fpu.fpv4.hard" valueType="enumerated"/>
                                 <inputType id="com.crt.advproject.compiler.cpp.input.1370967818" superClass="com.crt.advproject.compiler.cpp.input"/>
                             </tool>
                             <tool id="com.crt.advproject.gcc.exe.debug.529082641" name="MCU C Compiler" superClass="com.crt.advproject.gcc.exe.debug">
@@ -63,15 +63,15 @@
                                         <listOptionValue builtIn="false" value="&quot;${workspace_loc:/${ProjName}/{{path}}}&quot;"/>
                                     {% endfor %}
                                 </option>
-								<option id="com.crt.advproject.gcc.fpu.759979004" name="Floating point" superClass="com.crt.advproject.gcc.fpu" value="com.crt.advproject.gcc.fpu.fpv4" valueType="enumerated"/>
+								<option id="com.crt.advproject.gcc.fpu.759979004" name="Floating point" superClass="com.crt.advproject.gcc.fpu" value="com.crt.advproject.gcc.fpu.fpv4.hard" valueType="enumerated"/>
                                 <inputType id="com.crt.advproject.compiler.input.205113874" superClass="com.crt.advproject.compiler.input"/>
                             </tool>
                             <tool id="com.crt.advproject.gas.exe.debug.1277199919" name="MCU Assembler" superClass="com.crt.advproject.gas.exe.debug">
 								<option id="com.crt.advproject.gas.arch.1079400011" name="Architecture" superClass="com.crt.advproject.gas.arch" value="com.crt.advproject.gas.target.cm4" valueType="enumerated"/>
                                 <option id="com.crt.advproject.gas.thumb.1976113150" name="Thumb mode" superClass="com.crt.advproject.gas.thumb" value="true" valueType="boolean"/>
                                 <option id="gnu.both.asm.option.flags.crt.1501250871" name="Assembler flags" superClass="gnu.both.asm.option.flags.crt" value="-c -x assembler-with-cpp -D__NEWLIB__  -DDEBUG -D__CODE_RED " valueType="string"/>
                                 <option id="com.crt.advproject.gas.hdrlib.473313643" name="Use headers for C library" superClass="com.crt.advproject.gas.hdrlib" value="com.crt.advproject.gas.hdrlib.newlib" valueType="enumerated"/>
-								<option id="com.crt.advproject.gas.fpu.478766821" name="Floating point" superClass="com.crt.advproject.gas.fpu" value="com.crt.advproject.gas.fpu.fpv4" valueType="enumerated"/>
+								<option id="com.crt.advproject.gas.fpu.478766821" name="Floating point" superClass="com.crt.advproject.gas.fpu" value="com.crt.advproject.gas.fpu.fpv4.hard" valueType="enumerated"/>
                                 <inputType id="com.crt.advproject.assembler.input.910682278" name="Additional Assembly Source Files" superClass="com.crt.advproject.assembler.input"/>
                             </tool>
                             <tool id="com.crt.advproject.link.cpp.exe.debug.1997879384" name="MCU C++ Linker" superClass="com.crt.advproject.link.cpp.exe.debug">
@@ -106,7 +106,7 @@
                                         <listOptionValue builtIn="false" value="&quot;${workspace_loc:/${ProjName}/{{path}}}&quot;"/>
                                     {% endfor %}
                                 </option>
-				<option id="com.crt.advproject.link.cpp.fpu.1448877425" name="Floating point" superClass="com.crt.advproject.link.cpp.fpu" value="com.crt.advproject.link.cpp.fpu.fpv4" valueType="enumerated"/>
+				<option id="com.crt.advproject.link.cpp.fpu.1448877425" name="Floating point" superClass="com.crt.advproject.link.cpp.fpu" value="com.crt.advproject.link.cpp.fpu.fpv4.hard" valueType="enumerated"/>
 
                                 <inputType id="cdt.managedbuild.tool.gnu.cpp.linker.input.1671719885" superClass="cdt.managedbuild.tool.gnu.cpp.linker.input">
                                     <additionalInput kind="additionalinputdependency" paths="$(USER_OBJS)"/>

workspace_tools/export/gcc_arm_lpc4088.tmpl

@@ -17,7 +17,7 @@ CPP     = $(GCC_BIN)arm-none-eabi-g++
 LD      = $(GCC_BIN)arm-none-eabi-gcc
 OBJCOPY = $(GCC_BIN)arm-none-eabi-objcopy
 
-CPU = -mcpu=cortex-m4 -mthumb -mfpu=fpv4-sp-d16 -mfloat-abi=softfp
+CPU = -mcpu=cortex-m4 -mthumb -mfpu=fpv4-sp-d16 -mfloat-abi=hard
 CC_FLAGS = $(CPU) -c -Os -fno-common -fmessage-length=0 -Wall -fno-exceptions -ffunction-sections -fdata-sections 
 CC_SYMBOLS = {% for s in symbols %}-D{{s}} {% endfor %}
 

workspace_tools/toolchains/gcc.py

@@ -45,7 +45,7 @@ def __init__(self, target, options=None, notify=None, macros=None, tool_path="")
 
         if target.core == "Cortex-M4F":
             self.cpu.append("-mfpu=fpv4-sp-d16")
-            self.cpu.append("-mfloat-abi=softfp")
+            self.cpu.append("-mfloat-abi=hard")
 
         # Note: We are using "-O2" instead of "-Os" to avoid this known GCC bug:
         # http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46762