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| author | gdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4> | 2014-05-14 08:49:13 +0000 |
|---|---|---|
| committer | gdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4> | 2014-05-14 08:49:13 +0000 |
| commit | be29b288e58e0f95249dc57d6078655ff08b298c (patch) | |
| tree | d0509c8a6d3de3b223f7e2862a72d492cc3f283a | |
| parent | d2358743d776c32f721dca668ec2e5841b287190 (diff) | |
| download | ChibiOS-be29b288e58e0f95249dc57d6078655ff08b298c.tar.gz ChibiOS-be29b288e58e0f95249dc57d6078655ff08b298c.tar.bz2 ChibiOS-be29b288e58e0f95249dc57d6078655ff08b298c.zip | |
git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@6936 35acf78f-673a-0410-8e92-d51de3d6d3f4
| -rw-r--r-- | os/common/ports/ARM/compilers/GCC/crt0.s | 191 | ||||
| -rw-r--r-- | os/common/ports/ARM/compilers/GCC/rules.mk | 240 |
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 ***
|