1 | # let the user have a default configuration (ie for PLATFORM_DIR and SOCLIB) |
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2 | -include ./build.mk |
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3 | |
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4 | MAKECMDGOALS ?= none |
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5 | |
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6 | ifneq ($(MAKECMDGOALS),$(filter $(MAKECMDGOALS),clean distclean clean-doc doc)) |
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7 | ifndef PLATFORM_DIR |
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8 | $(error please define PLATFORM_DIR 'make PLATFORM_DIR=foo') |
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9 | else |
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10 | ifdef SOCLIB |
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11 | DEFS+= -DSOCLIB_IOC |
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12 | DTS=platform_soclib.dts |
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13 | $(info Make for $(PLATFORM_DIR), SocLib variant) |
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14 | else |
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15 | DTS=platform_fpga.dts |
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16 | $(info Make for $(PLATFORM_DIR), FPGA variant) |
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17 | endif |
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18 | endif |
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19 | endif |
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20 | |
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21 | LD := mipsel-unknown-elf-ld |
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22 | CC := mipsel-unknown-elf-gcc |
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23 | AS := mipsel-unknown-elf-as |
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24 | DU := mipsel-unknown-elf-objdump |
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25 | RM := rm -rf |
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26 | ECHO := echo |
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27 | MKDIR := mkdir |
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28 | DTC := dtc |
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29 | HEXDUMP := hexdump |
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30 | DOXYGEN := doxygen |
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31 | |
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32 | BUILD_DIR := build |
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33 | SRCS_DIR := src |
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34 | INCS_DIR := include |
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35 | |
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36 | # ============================================================================= |
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37 | # Include files paths |
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38 | # ============================================================================= |
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39 | |
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40 | INCLUDE += -I. -I$(INCS_DIR) -I$(PLATFORM_DIR) |
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41 | |
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42 | # ============================================================================= |
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43 | # Paths of sources in another directories |
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44 | # ============================================================================= |
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45 | |
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46 | VPATH += $(SRCS_DIR) |
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47 | VPATH += $(PLATFORM_DIR) |
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48 | |
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49 | # ============================================================================= |
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50 | # Object files |
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51 | # ============================================================================= |
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52 | |
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53 | CFLAGS := -Wall \ |
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54 | -mno-gpopt \ |
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55 | -ffreestanding \ |
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56 | -fomit-frame-pointer \ |
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57 | -mips32 \ |
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58 | -ggdb \ |
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59 | -mlong-calls \ |
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60 | -Werror |
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61 | |
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62 | C_SRCS := reset_elf_loader.c \ |
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63 | reset_ioc.c \ |
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64 | reset_utils.c \ |
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65 | reset_tty.c \ |
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66 | reset_exception.c |
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67 | |
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68 | ifndef SOCLIB |
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69 | C_SRCS += sdcard.c spi.c |
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70 | endif |
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71 | |
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72 | S_SRCS := reset.S |
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73 | |
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74 | OBJS := $(subst .c,.o, $(notdir $(C_SRCS))) |
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75 | OBJS += $(subst .S,.o, $(notdir $(S_SRCS))) |
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76 | OBJS := $(addprefix $(BUILD_DIR)/, $(OBJS)) |
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77 | |
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78 | TARGET := preloader.elf |
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79 | |
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80 | USE_DT ?= 1 |
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81 | |
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82 | all: $(TARGET) |
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83 | |
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84 | # $(BUILD_DIR)/version.o: $(BUILD_DIR) $(OBJS) version version.sh |
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85 | # $(ECHO) "[version.sh]" |
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86 | # ./version.sh > $(BUILD_DIR)/version.c |
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87 | # $(ECHO) "[ CC ] $(BUILD_DIR)/version.c" |
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88 | # $(CC) $(DEFS) $(CFLAGS) $(INCLUDE) -c -o $@ $(BUILD_DIR)/version.c |
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89 | # $(DU) -D $@ > $@.txt |
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90 | |
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91 | $(TARGET): $(BUILD_DIR) $(OBJS) $(PLATFORM_DIR)/ldscript $(BUILD_DIR)/platform.ld |
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92 | $(ECHO) "[ LD ] $@" |
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93 | $(LD) -o $@ -T $(PLATFORM_DIR)/ldscript $(OBJS) |
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94 | $(DU) -D $@ > $@.txt |
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95 | |
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96 | ifeq ($(USE_DT), 1) |
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97 | $(BUILD_DIR)/platform.ld: $(BUILD_DIR)/platform.dtb |
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98 | $(ECHO) "[ HEXDUMP ] $(notdir $<)" |
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99 | $(HEXDUMP) -v -e '"BYTE(0x" 1/1 "%02X" ")\n"' $< > $@ |
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100 | else |
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101 | $(BUILD_DIR)/platform.ld: |
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102 | $(ECHO) "[ TOUCH ] $(notdir $@)" |
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103 | touch $@ |
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104 | endif |
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105 | |
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106 | $(BUILD_DIR)/platform.dtb: $(DTS) |
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107 | $(ECHO) "[ DTC ] $(notdir $<)" |
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108 | ${DTC} -O dtb -o $@ $< &> /dev/null |
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109 | |
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110 | $(BUILD_DIR): |
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111 | $(MKDIR) $@ |
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112 | |
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113 | doc: Doxyfile |
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114 | $(DOXYGEN) Doxyfile |
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115 | |
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116 | clean: |
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117 | $(RM) $(TARGET).txt $(TARGET) *~ $(BUILD_DIR) |
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118 | |
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119 | clean-doc: |
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120 | $(RM) doc |
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121 | |
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122 | distclean: clean clean-doc |
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123 | |
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124 | # ============================================================================= |
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125 | # Implicit makefile rules |
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126 | |
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127 | $(BUILD_DIR)/%.o: %.c |
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128 | $(ECHO) "[ CC ] $(notdir $<)" |
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129 | $(CC) $(DEFS) $(CFLAGS) $(INCLUDE) -c -o $@ $< |
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130 | $(DU) -D $@ > $@.txt |
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131 | |
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132 | $(BUILD_DIR)/%.o: %.S |
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133 | $(ECHO) "[ AS ] $(notdir $<)" |
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134 | $(CC) $(DEFS) ${INCLUDE} -g -mips32 -c -o $@ $< |
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135 | $(DU) -D $@ > $@.txt |
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136 | |
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137 | .SILENT: |
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