git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@6936 35acf78f-673a-0410-8e92-d51de3d6d3f4

2 files changed, 431 insertions, 0 deletions

diff --git a/os/common/ports/ARM/compilers/GCC/crt0.s b/os/common/ports/ARM/compilers/GCC/crt0.s
new file mode 100644
index 000000000..b8e6c6614
--- /dev/null
+++ b/os/common/ports/ARM/compilers/GCC/crt0.s
@@ -0,0 +1,191 @@
+/*

+    ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,

+                 2011,2012,2013 Giovanni Di Sirio.

+

+    This file is part of ChibiOS/RT.

+

+    ChibiOS/RT 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.

+

+    ChibiOS/RT 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/>.

+*/

+

+/**

+ * @file    crt0.s

+ * @brief   Generic ARM startup file.

+ *

+ * @addtogroup ARM_GCC_STARTUP

+ * @{

+ */

+

+#if !defined(__DOXYGEN__)

+

+        .set    MODE_USR, 0x10

+        .set    MODE_FIQ, 0x11

+        .set    MODE_IRQ, 0x12

+        .set    MODE_SVC, 0x13

+        .set    MODE_ABT, 0x17

+        .set    MODE_UND, 0x1B

+        .set    MODE_SYS, 0x1F

+

+        .set    I_BIT, 0x80

+        .set    F_BIT, 0x40

+

+        .text

+        .code   32

+        .balign 4

+

+/*

+ * Reset handler.

+ */

+        .global ResetHandler

+ResetHandler:

+        /*

+         * Stack pointers initialization.

+         */

+        ldr     r0, =__ram_end__

+        /* Undefined */

+        msr     CPSR_c, #MODE_UND | I_BIT | F_BIT

+        mov     sp, r0

+        ldr     r1, =__und_stack_size__

+        sub     r0, r0, r1

+        /* Abort */

+        msr     CPSR_c, #MODE_ABT | I_BIT | F_BIT

+        mov     sp, r0

+        ldr     r1, =__abt_stack_size__

+        sub     r0, r0, r1

+        /* FIQ */

+        msr     CPSR_c, #MODE_FIQ | I_BIT | F_BIT

+        mov     sp, r0

+        ldr     r1, =__fiq_stack_size__

+        sub     r0, r0, r1

+        /* IRQ */

+        msr     CPSR_c, #MODE_IRQ | I_BIT | F_BIT

+        mov     sp, r0

+        ldr     r1, =__irq_stack_size__

+        sub     r0, r0, r1

+        /* Supervisor */

+        msr     CPSR_c, #MODE_SVC | I_BIT | F_BIT

+        mov     sp, r0

+        ldr     r1, =__svc_stack_size__

+        sub     r0, r0, r1

+        /* System */

+        msr     CPSR_c, #MODE_SYS | I_BIT | F_BIT

+        mov     sp, r0

+//        ldr     r1, =__sys_stack_size__

+//        sub     r0, r0, r1

+        /*

+         * Early initialization.

+         */

+#ifndef THUMB_NO_INTERWORKING

+        bl      __early_init

+#else

+        add     r0, pc, #1

+        bx      r0

+        .code   16

+        bl      __early_init

+        mov     r0, pc

+        bx      r0

+        .code   32

+#endif

+        /*

+         * Data initialization.

+         * NOTE: It assumes that the DATA size is a multiple of 4.

+         */

+        ldr     r1, =_textdata

+        ldr     r2, =_data

+        ldr     r3, =_edata

+dataloop:

+        cmp     r2, r3

+        ldrlo   r0, [r1], #4

+        strlo   r0, [r2], #4

+        blo     dataloop

+        /*

+         * BSS initialization.

+         * NOTE: It assumes that the BSS size is a multiple of 4.

+         */

+        mov     r0, #0

+        ldr     r1, =_bss_start

+        ldr     r2, =_bss_end

+bssloop:

+        cmp     r1, r2

+        strlo   r0, [r1], #4

+        blo     bssloop

+        /*

+         * Late initialization.

+         */

+#ifndef THUMB_NO_INTERWORKING

+        bl      __late_init

+#else

+        add     r0, pc, #1

+        bx      r0

+        .code   16

+        bl      __late_init

+        mov     r0, pc

+        bx      r0

+        .code   32

+#endif

+        /*

+         * Main program invocation.

+         */

+#ifdef THUMB_NO_INTERWORKING

+        add     r0, pc, #1

+        bx      r0

+        .code   16

+        bl      main

+        ldr     r1, =_main_exit_handler

+        bx      r1

+        .code   32

+#else

+        bl      main

+        b       _main_exit_handler

+#endif

+

+/*

+ * Default main function exit handler.

+ */

+        .weak   _main_exit_handler

+_main_exit_handler:

+.loop:  b       .loop

+

+/*

+ * Default early initialization code. It is declared weak in order to be

+ * replaced by the real initialization code.

+ * Early initialization is performed just before reset before BSS and DATA

+ * segments initialization.

+ */

+#ifdef THUMB_NO_INTERWORKING

+        .thumb_func

+        .code   16

+#endif

+        .weak   __early_init

+__early_init:

+        bx      lr

+        .code   32

+#endif

+

+/*

+ * Default late initialization code. It is declared weak in order to be

+ * replaced by the real initialization code.

+ * Early initialization is performed just after reset before BSS and DATA

+ * segments initialization.

+ */

+#ifdef THUMB_NO_INTERWORKING

+        .thumb_func

+        .code   16

+#endif

+        .weak   __late_init

+__late_init:

+        bx      lr

+        .code   32

+#endif

+

+/** @} */

diff --git a/os/common/ports/ARM/compilers/GCC/rules.mk b/os/common/ports/ARM/compilers/GCC/rules.mk
new file mode 100644
index 000000000..24020086d
--- /dev/null
+++ b/os/common/ports/ARM/compilers/GCC/rules.mk
@@ -0,0 +1,240 @@
+# ARM common makefile scripts and rules.

+

+##############################################################################

+# Processing options coming from the upper Makefile.

+#

+

+# Output directory and files

+ifeq ($(BUILDDIR),)

+  BUILDDIR = build

+endif

+ifeq ($(BUILDDIR),.)

+  BUILDDIR = build

+endif

+OUTFILES = $(BUILDDIR)/$(PROJECT).elf $(BUILDDIR)/$(PROJECT).hex \

+           $(BUILDDIR)/$(PROJECT).bin $(BUILDDIR)/$(PROJECT).dmp

+

+# Compiler options

+OPT = $(USE_OPT)

+COPT = $(USE_COPT)

+CPPOPT = $(USE_CPPOPT)

+

+# Garbage collection

+ifeq ($(USE_LINK_GC),yes)

+  OPT += -ffunction-sections -fdata-sections -fno-common

+  LDOPT := ,--gc-sections

+else

+  LDOPT :=

+endif

+

+# Linker extra options

+ifneq ($(USE_LDOPT),)

+  LDOPT := $(LDOPT),$(USE_LDOPT)

+endif

+

+# Link time optimizations

+ifeq ($(USE_LTO),yes)

+  OPT += -flto

+endif

+

+# Source files groups and paths

+ifeq ($(USE_THUMB),yes)

+  TCSRC += $(CSRC)

+  TCPPSRC += $(CPPSRC)

+else

+  ACSRC += $(CSRC)

+  ACPPSRC += $(CPPSRC)

+endif

+ASRC	  = $(ACSRC)$(ACPPSRC)

+TSRC	  = $(TCSRC)$(TCPPSRC)

+SRCPATHS  = $(sort $(dir $(ASMXSRC)) $(dir $(ASMSRC)) $(dir $(ASRC)) $(dir $(TSRC)))

+

+# Various directories

+OBJDIR    = $(BUILDDIR)/obj

+LSTDIR    = $(BUILDDIR)/lst

+

+# Object files groups

+ACOBJS    = $(addprefix $(OBJDIR)/, $(notdir $(ACSRC:.c=.o)))

+ACPPOBJS  = $(addprefix $(OBJDIR)/, $(notdir $(ACPPSRC:.cpp=.o)))

+TCOBJS    = $(addprefix $(OBJDIR)/, $(notdir $(TCSRC:.c=.o)))

+TCPPOBJS  = $(addprefix $(OBJDIR)/, $(notdir $(TCPPSRC:.cpp=.o)))

+ASMOBJS   = $(addprefix $(OBJDIR)/, $(notdir $(ASMSRC:.s=.o)))

+ASMXOBJS  = $(addprefix $(OBJDIR)/, $(notdir $(ASMXSRC:.S=.o)))

+OBJS	  = $(ASMXOBJS) $(ASMOBJS) $(ACOBJS) $(TCOBJS) $(ACPPOBJS) $(TCPPOBJS)

+

+# Paths

+IINCDIR   = $(patsubst %,-I%,$(INCDIR) $(DINCDIR) $(UINCDIR))

+LLIBDIR   = $(patsubst %,-L%,$(DLIBDIR) $(ULIBDIR))

+

+# Macros

+DEFS      = $(DDEFS) $(UDEFS)

+ADEFS 	  = $(DADEFS) $(UADEFS)

+

+# Libs

+LIBS      = $(DLIBS) $(ULIBS)

+

+# Various settings

+MCFLAGS   = -mcpu=$(MCU)

+ODFLAGS	  = -x --syms

+ASFLAGS   = $(MCFLAGS) -Wa,-amhls=$(LSTDIR)/$(notdir $(<:.s=.lst)) $(ADEFS)

+ASXFLAGS  = $(MCFLAGS) -Wa,-amhls=$(LSTDIR)/$(notdir $(<:.S=.lst)) $(ADEFS)

+CFLAGS    = $(MCFLAGS) $(OPT) $(COPT) $(CWARN) -Wa,-alms=$(LSTDIR)/$(notdir $(<:.c=.lst)) $(DEFS)

+CPPFLAGS  = $(MCFLAGS) $(OPT) $(CPPOPT) $(CPPWARN) -Wa,-alms=$(LSTDIR)/$(notdir $(<:.cpp=.lst)) $(DEFS)

+LDFLAGS   = $(MCFLAGS) $(OPT) -nostartfiles $(LLIBDIR) -Wl,-Map=$(BUILDDIR)/$(PROJECT).map,--cref,--no-warn-mismatch,--library-path=$(RULESPATH),--script=$(LDSCRIPT)$(LDOPT)

+

+# Thumb interwork enabled only if needed because it kills performance.

+ifneq ($(TSRC),)

+  CFLAGS   += -DTHUMB_PRESENT

+  CPPFLAGS += -DTHUMB_PRESENT

+  ASFLAGS  += -DTHUMB_PRESENT

+  ifneq ($(ASRC),)

+    # Mixed ARM and THUMB mode.

+    CFLAGS   += -mthumb-interwork

+    CPPFLAGS += -mthumb-interwork

+    ASFLAGS  += -mthumb-interwork

+    LDFLAGS  += -mthumb-interwork

+  else

+    # Pure THUMB mode, THUMB C code cannot be called by ARM asm code directly.

+    CFLAGS   += -mno-thumb-interwork -DTHUMB_NO_INTERWORKING

+    CPPFLAGS += -mno-thumb-interwork -DTHUMB_NO_INTERWORKING

+    ASFLAGS  += -mno-thumb-interwork -DTHUMB_NO_INTERWORKING -mthumb

+    LDFLAGS  += -mno-thumb-interwork -mthumb

+  endif

+else

+  # Pure ARM mode

+  CFLAGS   += -mno-thumb-interwork

+  CPPFLAGS += -mno-thumb-interwork

+  ASFLAGS  += -mno-thumb-interwork

+  LDFLAGS  += -mno-thumb-interwork

+endif

+

+# Generate dependency information

+ASFLAGS  += -MD -MP -MF .dep/$(@F).d

+CFLAGS   += -MD -MP -MF .dep/$(@F).d

+CPPFLAGS += -MD -MP -MF .dep/$(@F).d

+

+# Paths where to search for sources

+VPATH     = $(SRCPATHS)

+

+#

+# Makefile rules

+#

+

+all: $(OBJS) $(OUTFILES) MAKE_ALL_RULE_HOOK

+

+MAKE_ALL_RULE_HOOK:

+

+$(OBJS): | $(BUILDDIR)

+

+$(BUILDDIR) $(OBJDIR) $(LSTDIR):

+ifneq ($(USE_VERBOSE_COMPILE),yes)

+	@echo Compiler Options

+	@echo $(CC) -c $(CFLAGS) -I. $(IINCDIR) main.c -o main.o

+	@echo

+endif

+	mkdir -p $(OBJDIR)

+	mkdir -p $(LSTDIR)

+

+$(ACPPOBJS) : $(OBJDIR)/%.o : %.cpp Makefile

+ifeq ($(USE_VERBOSE_COMPILE),yes)

+	@echo

+	$(CPPC) -c $(CPPFLAGS) $(AOPT) -I. $(IINCDIR) $< -o $@

+else

+	@echo Compiling $(<F)

+	@$(CPPC) -c $(CPPFLAGS) $(AOPT) -I. $(IINCDIR) $< -o $@

+endif

+

+$(TCPPOBJS) : $(OBJDIR)/%.o : %.cpp Makefile

+ifeq ($(USE_VERBOSE_COMPILE),yes)

+	@echo

+	$(CPPC) -c $(CPPFLAGS) $(TOPT) -I. $(IINCDIR) $< -o $@

+else

+	@echo Compiling $(<F)

+	@$(CPPC) -c $(CPPFLAGS) $(TOPT) -I. $(IINCDIR) $< -o $@

+endif

+

+$(ACOBJS) : $(OBJDIR)/%.o : %.c Makefile

+ifeq ($(USE_VERBOSE_COMPILE),yes)

+	@echo

+	$(CC) -c $(CFLAGS) $(AOPT) -I. $(IINCDIR) $< -o $@

+else

+	@echo Compiling $(<F)

+	@$(CC) -c $(CFLAGS) $(AOPT) -I. $(IINCDIR) $< -o $@

+endif

+

+$(TCOBJS) : $(OBJDIR)/%.o : %.c Makefile

+ifeq ($(USE_VERBOSE_COMPILE),yes)

+	@echo

+	$(CC) -c $(CFLAGS) $(TOPT) -I. $(IINCDIR) $< -o $@

+else

+	@echo Compiling $(<F)

+	@$(CC) -c $(CFLAGS) $(TOPT) -I. $(IINCDIR) $< -o $@

+endif

+

+$(ASMOBJS) : $(OBJDIR)/%.o : %.s Makefile

+ifeq ($(USE_VERBOSE_COMPILE),yes)

+	@echo

+	$(AS) -c $(ASFLAGS) -I. $(IINCDIR) $< -o $@

+else

+	@echo Compiling $(<F)

+	@$(AS) -c $(ASFLAGS) -I. $(IINCDIR) $< -o $@

+endif

+

+$(ASMXOBJS) : $(OBJDIR)/%.o : %.S Makefile

+ifeq ($(USE_VERBOSE_COMPILE),yes)

+	@echo 

+	$(CC) -c $(ASXFLAGS) $(TOPT) -I. $(IINCDIR) $< -o $@

+else

+	@echo Compiling $(<F)

+	@$(CC) -c $(ASXFLAGS) $(TOPT) -I. $(IINCDIR) $< -o $@

+endif

+

+%.elf: $(OBJS) $(LDSCRIPT)

+ifeq ($(USE_VERBOSE_COMPILE),yes)

+	@echo

+	$(LD) $(OBJS) $(LDFLAGS) $(LIBS) -o $@

+else

+	@echo Linking $@

+	@$(LD) $(OBJS) $(LDFLAGS) $(LIBS) -o $@

+endif

+

+%.hex: %.elf $(LDSCRIPT)

+ifeq ($(USE_VERBOSE_COMPILE),yes)

+	$(HEX) $< $@

+else

+	@echo Creating $@

+	@$(HEX) $< $@

+endif

+

+%.bin: %.elf $(LDSCRIPT)

+ifeq ($(USE_VERBOSE_COMPILE),yes)

+	$(BIN) $< $@

+else

+	@echo Creating $@

+	@$(BIN) $< $@

+endif

+

+%.dmp: %.elf $(LDSCRIPT)

+ifeq ($(USE_VERBOSE_COMPILE),yes)

+	$(OD) $(ODFLAGS) $< > $@

+else

+	@echo Creating $@

+	@$(OD) $(ODFLAGS) $< > $@

+	@echo

+	@$(SZ) $<

+	@echo

+	@echo Done

+endif

+

+clean:

+	@echo Cleaning

+	-rm -fR .dep $(BUILDDIR)

+	@echo

+	@echo Done

+

+#

+# Include the dependency files, should be the last of the makefile

+#

+-include $(shell mkdir .dep 2>/dev/null) $(wildcard .dep/*)

+

+# *** EOF ***