Initial commit

Dockerfile

+FROM ubuntu:bionic
+LABEL maintainer "Jacques Supcik <jacques.supcik@hefr.ch>"
+
+RUN apt-get update && apt-get install -y \
+    clang \
+    clang-tools \
+    cmake \
+    curl \
+    file \
+    git \
+    make \
+    python3 \
+    python3-pip \
+    unzip
+
+RUN cd /opt && curl -sL https://developer.arm.com/-/media/Files/downloads/gnu-rm/8-2019q3/RC1.1/gcc-arm-none-eabi-8-2019-q3-update-linux.tar.bz2 | tar jxf -
+
+ENV PATH=${PATH}:/opt/gcc-arm-none-eabi-8-2019-q3-update/bin
+
+RUN pip3 install chardet cpplint
+
+# Get the latest libbbb from gitlab
+RUN cd /tmp && \
+    curl -L https://gitlab.forge.hefr.ch/embsys/libbbb/-/jobs/artifacts/master/download?job=build --output t.zip && \
+    unzip t.zip && \
+    cd build  && \
+    tar zxvf libbbb-*-arm-none-eabi.tar.gz && \
+    cp -l /tmp/build/libbbb-*-arm-none-eabi/include/* /usr/arm-none-eabi/include/ && \
+    cp -l /tmp/build/libbbb-*-arm-none-eabi/lib/* /usr/arm-none-eabi/lib/
+
+# Copy makefiles, headers and library to /se12/bbb for compatibility
+COPY make.d /se12/bbb/make
+RUN mkdir /se12/bbb/source && \
+    cp -l /tmp/build/libbbb-*-arm-none-eabi/include/* /se12/bbb/source && \
+    cp -l /tmp/build/libbbb-*-arm-none-eabi/lib/* /se12/bbb/source
+ENV LMIBASE="/se12"
+
+# cleanup
+RUN rm -Rf /tmp/t.zip /tmp/build
+
+WORKDIR /se12

README.md

+# docker-se12-builder
+
+This Docker contains the tools needed to cross compile the sources
+of the embedded systems lecture given at the HEIA-FR.
+
+The latest version of the beaglebone library is downloaded from gitlab
\ No newline at end of file

make.d/bbb.lds

+OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm")
+OUTPUT_ARCH(arm)
+ENTRY(_start)
+
+/* The memory map */
+MEMORY {
+    SRAM :     o = 0x402F0400,  l = 0x0000FC00  /* 64KB internal SRAM */
+    L3OCMC0 :  o = 0x40300000,  l = 0x00010000  /* 64KB L3 OCMC SRAM */
+    M3SHUMEM : o = 0x44D00000,  l = 0x00004000  /* 16KB M3 Shared Unified Code Space */
+    M3SHDMEM : o = 0x44D80000,  l = 0x00002000  /*  8KB M3 Shared Data Memory */
+    DDR0 :     o = 0x80000000,  l = 0x00f00000 	/* 15MB on external DDR Bank 0 */
+    DDR0_dma : o = 0x80f00000,  l = 0x00100000 	/*  1MB on external DDR Bank 0 */
+}
+
+SECTIONS
+{
+    .bootargs (NOLOAD):
+    {
+		. = . + 0x1000;
+
+    } > DDR0
+
+	.text : 
+	{
+		*(.text_startup)
+		*(.text*)   
+
+        /* .ctors */
+        *crtbegin.o(.ctors)
+        *crtbegin?.o(.ctors)
+        *(EXCLUDE_FILE(*crtend?.o *crtend.o) .ctors)
+        *(SORT(.ctors.*))
+        *(.ctors)
+
+        /* .dtors */
+        *crtbegin.o(.dtors)
+        *crtbegin?.o(.dtors)
+        *(EXCLUDE_FILE(*crtend?.o *crtend.o) .dtors)
+        *(SORT(.dtors.*))
+        *(.dtors)
+
+        KEEP(*(.eh_frame*))
+
+	} > DDR0
+
+	.rodata : 
+	{ 
+		. = ALIGN(0x100);
+		*(.rodata*) 
+	} >DDR0
+  
+	. = ALIGN(0x100);
+	.ARM.extab :
+    {
+        *(.ARM.extab* .gnu.linkonce.armextab.*)
+    } > DDR0
+
+	__exidx_start = .;
+	.ARM.exidx : 
+	{ 
+		*(.ARM.exidx* .gnu.linkonce.armexidx.*) 
+	} > DDR0
+	__exidx_end = .;
+  
+
+	.data : 
+	{ 
+		. = ALIGN(0x100);
+		*(.data*)
+
+        . = ALIGN(8);
+        /* preinit data */
+        PROVIDE_HIDDEN (__preinit_array_start = .);
+        KEEP(*(.preinit_array))
+        PROVIDE_HIDDEN (__preinit_array_end = .);
+
+        . = ALIGN(8);
+        /* init data */
+        PROVIDE_HIDDEN (__init_array_start = .);
+        KEEP(*(SORT(.init_array.*)))
+        KEEP(*(.init_array))
+        PROVIDE_HIDDEN (__init_array_end = .);
+
+        . = ALIGN(8);
+        /* finit data */
+        PROVIDE_HIDDEN (__fini_array_start = .);
+        KEEP(*(SORT(.fini_array.*)))
+        KEEP(*(.fini_array))
+        PROVIDE_HIDDEN (__fini_array_end = .);
+
+        /* All data end */
+        . = ALIGN(32);
+	} >DDR0
+
+    .uninitialized (NOLOAD):
+    {
+        . = ALIGN(32);
+        __uninitialized_start = .;
+        *(.uninitialized)
+        KEEP(*(.keep.uninitialized))
+        . = ALIGN(32);
+        __uninitialized_end = .;
+    } > DDR0
+
+	.bss (NOLOAD):
+	{
+		. = ALIGN (0x100);
+		__bss_start__ = . ;
+		*(.bss*) 
+		*(COMMON)
+		. = ALIGN (0x100);
+		__bss_end__ = .;
+	} >DDR0
+
+	_end = ALIGN(0x100);
+	_stack_bottom = ORIGIN(DDR0) + LENGTH(DDR0) - 0x80000;
+	__c_stack_top__ = ORIGIN(DDR0) + LENGTH(DDR0);  
+
+	.dmasafe (NOLOAD) :
+	{
+		*(.dmasafe) 
+	} >DDR0_dma
+} 

make.d/bbb.mk

+#Standard makefile for LMI labs
+
+ifeq ($(OS),Windows_NT)
+DEL=del /F /S /Q
+MKDIR=mkdir
+RMDIR=rmdir /S /Q
+else
+DEL=rm -Rf
+MKDIR=mkdir -p
+RMDIR=rm -Rf
+endif
+
+ifneq ($(LIBDIRS),)
+LIBALL=lib_all
+LIBALL_CLEAN=lib_all_clean
+endif
+
+include $(LMIBASE)/bbb/make/bbb_tools.mk
+
+.PHONY: all clean lib_all
+
+all: $(OBJDIR) $(EXTRA_ALL) $(LIBALL) $(EXE)
+
+clean: $(EXTRA_CLEAN) $(LIBALL_CLEAN)
+	-$(DEL) $(EXE) $(EXEC)_[ahp] *.map *~ $(EXTRAS)
+	-$(RMDIR) .obj	
+	
+lib_all_clean:
+	@for dir in $(LIBDIRS);   do $(MAKE) --no-print-directory -C $$dir clean; done
+	
+lib_all:
+	@for dir in $(LIBDIRS);   do $(MAKE) --no-print-directory -C $$dir all; done
+
+$(EXE): $(OBJS) $(LINKER_SCRIPT) $(EXTRA_LIBS)
+	$(LD) $(OBJS) $(LDFLAGS) -o $@ 
+			
+$(OBJDIR):
+	echo $(OBJDIR)
+	$(MKDIR) $(OBJDIR)
+
+-include $(OBJS:.o=.d)
+
+

make.d/bbb_lib.mk

+ARCH=$(addsuffix .a, $(addprefix lib, $(notdir $(CURDIR))))
+
+include $(LMIBASE)/bbb/make/bbb_tools.mk
+
+.PHONY: all clean
+
+OBJS=$(addprefix $(OBJDIR)/, $(ASRC:.S=.o) $(SRCS:.c=.o))
+
+all: $(OBJDIR)/ $(EXTRA_ALL) $(ARCH) 
+
+clean: $(EXTRA_CLEAN)
+	rm -Rf $(ARCH) *~ $(EXTRAS)
+	rm -Rf .obj
+	
+$(ARCH): $(OBJS) 
+	$(AR) cr $@ $(OBJS)
+
+$(OBJDIR)/:
+	mkdir -p $(OBJDIR)
+
+-include $(OBJS:.o=.d)
+

make.d/bbb_process.lds

+OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm")
+OUTPUT_ARCH(arm)
+ENTRY(_start)
+
+/* The memory map */
+MEMORY {
+    DDR0 : o = 0x20000000,  l = 0x00100000 	/* 1MB external DDR Bank 0 */
+}
+
+SECTIONS
+{
+	.text : 
+	{
+		_base_args = . ;
+		. = . + 0x1000;
+		*(.text_startup)
+		*(.text*)   
+	} > DDR0
+
+	.rodata : 
+	{ 
+		. = ALIGN(0x100);
+		*(.rodata*) 
+	} >DDR0
+
+	.data : 
+	{ 
+		. = ALIGN(0x100);
+		*(.data*)
+	} >DDR0
+  
+	. = ALIGN(0x100);
+	__exidx_start = .;
+	.ARM.exidx : 
+	{ 
+		*(.ARM.exidx* .gnu.linkonce.armexidx.*) 
+	} > DDR0
+	__exidx_end = .;
+  
+	.bss :
+	{
+		. = ALIGN (0x100);
+		__bss_start__ = . ;
+		*(.bss*) 
+		*(COMMON)
+		. = ALIGN (0x100);
+		__bss_end__ = .;
+	} >DDR0
+
+	_end = ALIGN(0x100);
+	_stack_bottom = ORIGIN(DDR0) + LENGTH(DDR0) - 0x00008000;
+	__c_stack_top__ = ORIGIN(DDR0) + LENGTH(DDR0) - 0x100;  
+} 

make.d/bbb_tools.mk

+
+ifeq ($(OS),Windows_NT)
+DIRSEP=\\
+LIBGCCPATH="c:/program files (x86)/gnu tools arm embedded/7 2018-q2-update/bin/../lib/gcc/arm-none-eabi/7.3.1"
+else
+DIRSEP=/
+LIBGCCPATH=$(dir $(shell $(CC) -print-libgcc-file-name))
+endif
+
+ifeq ($(TARGET),HOST)
+	CC=gcc
+	LD=gcc
+	CFLAGS+=-Wall -Wextra -g -c -O0 -MD -std=gnu11
+	CFLAGS+=$(EXTRA_CFLAGS)
+	OBJDIR=.obj$(DIRSEP)host
+	EXE=$(EXEC)_h
+else
+	TOOLCHAIN=arm-none-eabi-
+	CC=$(TOOLCHAIN)gcc
+	AS=$(TOOLCHAIN)as
+	LD=$(TOOLCHAIN)ld
+	AR=$(TOOLCHAIN)ar
+	UFLAGS+=-mlittle-endian -funsigned-char -mno-unaligned-access
+	UFLAGS+=-mcpu=cortex-a8 -mtune=cortex-a8 -msoft-float
+	LFLAGS+=-I$(LMIBASE)/bbb/source 
+	LFLAGS+=$(addprefix -I./, $(EXTRADIRS)) $(addprefix -I./, $(LIBDIRS))
+	CFLAGS+=-Wall -Wextra -g -c -O1 -MD -std=gnu99
+	CFLAGS+=$(EXTRA_CFLAGS) $(LFLAGS) $(UFLAGS)
+	AFLAGS+=-mcpu=cortex-a8 -g 
+	CPPFLAGS+= -Wall -Wextra -g -c -O0 -MD $(LFLAGS) $(UFLAGS)
+	CPPFLAGS+=-fno-rtti 
+	#CPPFLAGS+=-fno-threadsafe-statics
+	CPPFLAGS+=-fno-exceptions -fnothrow-opt
+	CPPFLAGS+=-std=gnu++14 
+
+	LDFLAGS+=--start-group $(addprefix -l, $(LIBDIRS)) -lbbb -lc -lgcc -lm  -lstdc++ --end-group
+	LDFLAGS+= $(addprefix -L./, $(LIBDIRS)) 
+	LDFLAGS+=-L$(LMIBASE)/bbb/source
+	LDFLAGS+=--gc-sections --no-eh-frame-hdr
+	
+	libgcc=$(shell $(CC) -print-libgcc-file-name)
+	libgcc-dir= $(shell dirname $(realpath "$(ligbcc)"))
+
+	LDFLAGS+=-L$(LIBGCCPATH)
+	LDFLAGS+=-L"$(shell $(CC) -print-sysroot)"/lib 
+	ifeq ($(PROCESS),)
+		EXE=$(EXEC)_a
+		LDFLAGS+=-T $(LMIBASE)/bbb/make/bbb.lds -Map=$(EXE).map
+	else
+		EXE=$(EXEC)_p
+		LDFLAGS+=-T $(LMIBASE)/bbb/make/bbb_process.lds -Map $(EXE).map
+	endif
+
+	OBJDIR=.obj$(DIRSEP)bbb
+	OBJS+=$(addprefix $(OBJDIR)/, $(ASRC:.S=.o) $(SRCS:.c=.o) $(SCPP:.cpp=.o))
+	EXTRA_LIBS+=$(foreach dir,$(LIBDIRS), $(addprefix $(dir)/, $(addsuffix .a, $(addprefix lib, $(dir)))))
+endif
+export CFLAGS
+export AFLAGS
+export CC
+export AS
+export AR
+export OBJDIR
+
+$(OBJDIR)/%.o: %.c
+	$(CC) $(CFLAGS) $< -o $@
+
+$(OBJDIR)/%.o: %.cpp
+	$(CC) $<  $(CPPFLAGS) -o $@
+	
+$(OBJDIR)/%.o: %.S
+	$(CC) $(CFLAGS) $< -o $@
+
+$(OBJDIR)/%.o: %.s
+	$(CC) $(CFLAGS) $< -o $@
+
+