FreeCalypso > hg > freecalypso-sw

annotate gsm-fw/finlink/ld-script.src @ 665:39bacc7d5c49

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gsm-fw: starting to compile comlib
author Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
date Sun, 28 Sep 2014 05:42:46 +0000
parents 46e5c90fd0b8
children 210268d8e553
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1 dnl This ld script source is fed through m4 in order to fill in
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2 dnl those settings which depend on the configuration.
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3 dnl Memory region sizes are set in ../include/config.m4, generated
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4 dnl by the configuration mechanism based on the selected target,
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5 dnl and the Makefile prepends flash.m4 or xram.m4 to select the
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6 dnl type of image we are linking: either the regular flashable image,
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7 dnl or a RAM-only test image (to be loaded via fc-xram) that does not
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8 dnl touch the flash and pretends as if the flash doesn't even exist.
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9
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10 /*
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11 * FreeCalypso ld script for the Buildmem build
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12 */
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13
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14 ENTRY(ifelse(Buildmem,XRAM,_FlashorXram_entry,_Flash_boot_entry))
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15
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16 include(`../include/config.m4')dnl
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17 MEMORY {
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18 ifelse(Buildmem-FLASH_BOOT_VIA_BOOTROM,FLASH-1,
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19 ` FLASH_OVERLAY : ORIGIN = 0, LENGTH = 0x2000')
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20 ifelse(Buildmem,FLASH,
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21 ` FLASH : ORIGIN = FLASHIMAGE_BASE_ADDR,
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22 LENGTH = CONFIG_FWFLASH_SIZE - FLASHIMAGE_BASE_ADDR')
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23 IRAM : ORIGIN = 0x00800000, LENGTH = CONFIG_IRAM_SIZE
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24 XRAM : ORIGIN = 0x01000000, LENGTH = CONFIG_XRAM_SIZE
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25 }
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26 ifelse(FFS_IN_RAM,1,`
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27 RAMFFS_BLKSIZE_BYTES = 1 << RAMFFS_BLKSIZE_LOG2;
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28 RAMFFS_TOTAL_SIZE = RAMFFS_BLKSIZE_BYTES * RAMFFS_NBLOCKS;
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29 ')dnl
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30
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31 SECTIONS {
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32 dnl The following sections exist only in the flashImage build,
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33 dnl and only on targets that use the Calypso boot ROM.
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34 ifelse(Buildmem-FLASH_BOOT_VIA_BOOTROM,FLASH-1,
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35 ` /* Part of flash overlaid by the boot ROM */
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36 bootrom.overlay 0 : {
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37 *(bootrom.overlay)
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38 } > FLASH_OVERLAY
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39
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40 /* code that enables the boot ROM and jumps to it */
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41 bootrom.switch : {
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42 *(bootrom.switch)
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43 } > IRAM AT> FLASH_OVERLAY
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44 __romswitch_ram_addr = ADDR(bootrom.switch);
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45 __romswitch_flash_addr = LOADADDR(bootrom.switch);
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46 __romswitch_size = SIZEOF(bootrom.switch);
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47 ')dnl
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48
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49 dnl all flashImage builds
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50 ifelse(Buildmem,FLASH,
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51 ` /* Flash boot entry point */
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52 flashboot.text FLASHIMAGE_BASE_ADDR : {
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53 *(flashboot.text)
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54 } > FLASH
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55 ')dnl
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56
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57 /* XIP code, going into flash or XRAM emulating flash */
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58 xip.text : {
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59 *(xip.text*)
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60 xipcode.o(.text*)
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61 *libplus.xip.a:(.text*)
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62 *libgpf.xip.a:(.text*)
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63 *libccd.a:(.text*)
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64 *librv.a:(.text*)
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65 *libsprintf.a:(.text*)
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66 /* let's put the ARM->Thumb veneers in the XIP section */
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67 *(.glue_7)
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68 } > Buildmem
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69
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70 /* copy-to-IRAM code */
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71 iram.text 0x80001C : {
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72 /* the 7 exception and interrupt vectors @ 0x80001C */
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73 *(iram.vectors)
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74 *(iram.text*)
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75 iramcode.o(.text*)
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76 *libplus.iram.a:(.text*)
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77 *libgpf.iram.a:(.text*)
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78 *libc.a:(.text*)
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79 *libgcc.a:(.text*)
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80 } > IRAM Put_in_flash
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81 ifelse(Buildmem,FLASH,
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82 ` __iramtext_ram_addr = ADDR(iram.text);
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83 __iramtext_flash_addr = LOADADDR(iram.text);
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84 __iramtext_size = SIZEOF(iram.text);
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85 ')dnl
92
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86
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87 /* all .rodata will stay in flash */
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88 .rodata : {
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89 *(.rodata*)
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90 } > Buildmem
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91
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92 /*
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93 * All .data will go into XRAM.
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94 * For the flash build we'll have a step that copies
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95 * the .data section from flash to XRAM; for the RAM-only
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96 * build it goes directly into XRAM and stays there.
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97 */
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98 .data : {
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99 *(.data*)
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100 } > XRAM Put_in_flash
92
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101 ifelse(Buildmem,FLASH,
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102 ` __initdata_ram_addr = ADDR(.data);
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103 __initdata_flash_addr = LOADADDR(.data);
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104 __initdata_size = SIZEOF(.data);
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105 ')dnl
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106
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107 /* we have two kinds of BSS: internal and external */
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108 int.bss (NOLOAD) : {
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109 *(int.bss*)
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110 *(.l1s_global)
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111 iramcode.o(.bss* COMMON)
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112 *libplus.iram.a:(.bss* COMMON)
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113 *libgpf.iram.a:(.bss* COMMON)
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114 *libc.a:(.bss* COMMON)
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115 *libgcc.a:(.bss* COMMON)
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116 . = ALIGN(4);
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117 } > IRAM
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118 __intbss_start = ADDR(int.bss);
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119 __intbss_size = SIZEOF(int.bss);
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120
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121 ext.bss (NOLOAD) : {
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122 *(ext.bss*)
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123 xipcode.o(.bss* COMMON)
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124 *libplus.xip.a:(.bss* COMMON)
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parents: 312
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125 *libgpf.xip.a:(.bss* COMMON)
658
46e5c90fd0b8 gsm-fw: ccd hooked into the build
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parents: 636
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126 *libccd.a:(.bss* COMMON)
132
2c5160a9d652 nuc-fw: switched from nucdemo to Riviera, got some serial output
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parents: 92
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127 *librv.a:(.bss* COMMON)
92
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128 *libsprintf.a:(.bss* COMMON)
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129 . = ALIGN(4);
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130 } > XRAM
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131 __extbss_start = ADDR(ext.bss);
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132 __extbss_size = SIZEOF(ext.bss);
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133
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134 /* finally, we have "raw RAM": like BSS, but we don't zero it out */
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135 int.ram (NOLOAD) : {
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136 *(int.ram*)
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137 *(system_stack)
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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138 *(irq_stack)
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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139 *(fiq_stack)
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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140 *(timer_hisr_stack)
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141 . = ALIGN(4);
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142 _iram_end = .;
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143 } > IRAM
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144
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145 ext.ram (NOLOAD) : {
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146 *(ext.ram*)
312
f05ae34f7ca0 gsm-fw: ARM exception vectors hooked in
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 208
diff changeset
147 *(except_stack)
92
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148 . = ALIGN(4);
208
2abe6ade042d gsm-fw FFS integration: ld script magic putting RAMFFS into ext.ram
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 143
diff changeset
149 ifelse(FFS_IN_RAM,1,
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parents: 143
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150 ` _RAMFFS_area = .;
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parents: 143
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151 . += RAMFFS_TOTAL_SIZE;
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parents: 143
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152 ')dnl
92
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153 _xram_end = .;
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154 } > XRAM
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155 }