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12 import xdc.bld.ITarget2;
13
14 /*!
15 * ======== M4F.xdc ========
16 * Embedded Cortex M4F, little endian, bare metal target
17 *
18 * This module defines an embedded bare metal target on Cortex M4F. The target
19 * generates code compatible with the "v7M" architecture.
20 *
21 */
22 metaonly module M4F inherits gnu.targets.ITarget {
23 override readonly config string name = "M4F";
24 override readonly config string suffix = "m4fg";
25 override readonly config string isa = "v7M4";
26 override readonly config xdc.bld.ITarget.Model model= {
27 endian: "little",
28 codeModel: "thumb2",
29 shortEnums: true
30 };
31
32 override readonly config Bool alignDirectiveSupported = true;
33
34 override readonly config string rts = "gnu.targets.arm.rtsv7M";
35 override config string platform = "ti.platforms.stellaris:LM4F232H5QD";
36
37 override config string LONGNAME = "bin/arm-none-eabi-gcc";
38
39 override readonly config String stdInclude = "gnu/targets/arm/std.h";
40
41 override readonly config ITarget2.Command cc = {
42 cmd: "$(rootDir)/$(LONGNAME) -c -MD -MF $@.dep",
43 opts: "-mcpu=cortex-m4 -mthumb -mhard-float -mabi=aapcs -mapcs"
44 };
45
46 readonly config ITarget2.Command ccBin = {
47 cmd: "bin/arm-none-eabi-gcc -c -MD -MF $@.dep",
48 opts: "-mabi=aapcs -mapcs"
49 };
50
51 override config ITarget2.Options ccOpts = {
52 prefix: "-Wunused -Wunknown-pragmas -ffunction-sections -fdata-sections ",
53 suffix: "-Dfar= "
54 };
55
56
57 override readonly config ITarget2.Command asm = {
58 cmd: "$(rootDir)/$(LONGNAME) -c -x assembler-with-cpp",
59 opts: "-Wa,-mcpu=cortex-m4 -Wa,-mthumb"
60 };
61
62 readonly config ITarget2.Command asmBin = {
63 cmd: "bin/arm-none-eabi-gcc -c -x assembler-with-cpp",
64 opts: "-Wa,-mcpu=cortex-m4 -Wa,-mthumb"
65 };
66
67 override config ITarget2.Options lnkOpts = {
68 prefix: "-nostartfiles -Wl,-static -Wl,--gc-sections ",
69 suffix: "-Wl,-Map=$(XDCCFGDIR)/$@.map -L$(rootDir)/$(GCCTARG)/lib/thumb2 -L$(rootDir)/lib/gcc/$(GCCTARG)/4.5.2/thumb2"
70 };
71
72 readonly config ITarget2.Command arBin = {
73 cmd: "bin/arm-none-eabi-ar ",
74 opts: ""
75 };
76
77 78 79
80 override config xdc.bld.ITarget.OptionSet profiles[string] = [
81 ["debug", {
82 compileOpts: {
83 copts: "-g",
84 defs: "-D_DEBUG_=1",
85 },
86 linkOpts: "-g",
87 }],
88
89 ["release", {
90 compileOpts: {
91 copts: " -O2 ",
92 },
93 linkOpts: " ",
94 }],
95 ];
96
97 98 99
100 override config String compatibleSuffixes[] = [];
101
102 override readonly config xdc.bld.ITarget.StdTypes stdTypes = {
103 t_IArg : { size: 4, align: 4 },
104 t_Char : { size: 1, align: 1 },
105 t_Double : { size: 8, align: 4 },
106 t_Float : { size: 4, align: 4 },
107 t_Fxn : { size: 4, align: 4 },
108 t_Int : { size: 4, align: 4 },
109 t_Int8 : { size: 1, align: 1 },
110 t_Int16 : { size: 2, align: 2 },
111 t_Int32 : { size: 4, align: 4 },
112 t_Int64 : { size: 8, align: 4 },
113 t_Long : { size: 4, align: 4 },
114 t_LDouble : { size: 8, align: 4 },
115 t_LLong : { size: 8, align: 4 },
116 t_Ptr : { size: 4, align: 4 },
117 t_Short : { size: 2, align: 2 },
118 t_Size : { size: 4, align: 4 },
119 };
120 }
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125