summaryrefslogtreecommitdiffstats
path: root/firmware/target/arm/tcc780x/app.lds
blob: 069dd24b9c9b91098fe1273c1d16c311b8c7a8cd (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
#include "config.h"

ENTRY(start)

OUTPUT_FORMAT(elf32-littlearm)
OUTPUT_ARCH(arm)
INPUT(target/arm/tcc780x/crt0.o)

#define PLUGINSIZE PLUGIN_BUFFER_SIZE
#define CODECSIZE CODEC_SIZE

#ifdef DEBUG
#define STUBOFFSET 0x10000
#else
#define STUBOFFSET 0
#endif

#define DRAMSIZE (MEMORYSIZE * 0x100000) - PLUGINSIZE - STUBOFFSET - CODECSIZE

#define DRAMORIG 0x20000000 + STUBOFFSET
#define ITCMORIG 0x00000000
#define ITCMSIZE 0x1000
#define DTCMORIG 0xA0000000
#define DTCMSIZE 0x2000
#define SRAMORIG 0x10000000
#define SRAMSIZE 0xc000

/* End of the audio buffer, where the codec buffer starts */
#define ENDAUDIOADDR  (DRAMORIG + DRAMSIZE)

/* Where the codec buffer ends, and the plugin buffer starts */
#define ENDADDR (ENDAUDIOADDR + CODECSIZE)

MEMORY
{
    DRAM : ORIGIN = DRAMORIG, LENGTH = DRAMSIZE
    /* Seperate data & instruction TCMs plus SRAM. */
    ITCM : ORIGIN = ITCMORIG, LENGTH = ITCMSIZE
    DTCM : ORIGIN = DTCMORIG, LENGTH = DTCMSIZE
    SRAM : ORIGIN = SRAMORIG, LENGTH = SRAMSIZE
}

SECTIONS
{
    .text :
    {
        loadaddress = .;
        _loadaddress = .;
        . = ALIGN(0x200);
        *(.init.text)
        *(.text*)
        *(.glue_7)
        *(.glue_7t)
        . = ALIGN(0x4);
    } > DRAM

    .rodata :
    {
        *(.rodata)  /* problems without this, dunno why */
        *(.rodata*)
        *(.rodata.str1.1)
        *(.rodata.str1.4)
        . = ALIGN(0x4);

        /* Pseudo-allocate the copies of the data sections */
        _datacopy = .;
    } > DRAM

    /* TRICK ALERT! For RAM execution, we put the .data section at the
       same load address as the copy. Thus, we don't waste extra RAM
       when we don't actually need the copy.  */
    .data : AT ( _datacopy )
    {
        _datastart = .;
        *(.data*)
        . = ALIGN(0x4);
        _dataend  = .;
    } > DRAM

    /DISCARD/ :
    {
        *(.eh_frame)
    }

    .vectors ITCMORIG :
    {
        _vectorsstart = .;
        *(.vectors);
        _vectorsend = .;
    } > ITCM AT> DRAM

    _vectorscopy = LOADADDR(.vectors);

    .itcm :
    {
        _itcmstart = .;
        _itcmend = .;
    } > ITCM AT> DRAM

    _itcmcopy = LOADADDR(.itcm);
    
    .dtcm :
    {
        _dtcmstart = .;
        _dtcmend = .;
    } > DTCM AT> DRAM

    _dtcmcopy = LOADADDR(.dtcm);

    .iram :
    {
        _iramstart = .;
        *(.irodata)
        *(.idata)
        *(.icode)
        . = ALIGN(0x4);
        _iramend = .;
    } > SRAM AT> DRAM

    _iramcopy = LOADADDR(.iram);
    
    .ibss (NOLOAD) :
    {
        _iedata = .;
        *(.ibss)
        . = ALIGN(0x4);
        _iend = .;
    } > SRAM

    .stack :
    {
       *(.stack)
       stackbegin = .;
       . += 0x2000;
       stackend = .;
    } > SRAM

    .bss :
    {
       _edata = .;
        *(.bss*)
        *(COMMON)
        . = ALIGN(0x4);
       _end = .;
    } > DRAM

    .audiobuf ALIGN(4) :
    {
        _audiobuffer = .;
        audiobuffer = .;
    } > DRAM

    .audiobufend ENDAUDIOADDR:
    {
        audiobufend = .;
        _audiobufend = .;
    } > DRAM

    .codec ENDAUDIOADDR:
    {
        codecbuf = .;
        _codecbuf = .;
    }

    .plugin ENDADDR:
    {
        _pluginbuf = .;
        pluginbuf = .;
    }
}