1/*
2 * linker script for STM32F4xx with GNU ld
3 * bernard.xiong 2009-10-14
4 */
5
6/* Program Entry, set to mark it as "used" and avoid gc */
7MEMORY
8{
9  ITCMRAM (xrw)    : ORIGIN = 0x00000000,   LENGTH = 64K
10  DTCMRAM (xrw)    : ORIGIN = 0x20000000,   LENGTH = 128K
11  FLASH    (rx)    : ORIGIN = 0x90000000,   LENGTH = 1M
12  RAM_D1  (xrw)    : ORIGIN = 0x24000000,   LENGTH = 320K
13  RAM_D2  (xrw)    : ORIGIN = 0x30000000,   LENGTH = 32K
14  RAM_D3  (xrw)    : ORIGIN = 0x38000000,   LENGTH = 16K
15}
16ENTRY(Reset_Handler)
17_system_stack_size = 0x400;
18
19SECTIONS
20{
21    .ram_d1(NOLOAD) : {
22        . = ALIGN(4);
23        *(.ram_d1)
24        *(.ram_d1.*)
25        . = ALIGN(4);
26    } >RAM_D1
27
28    .ram_d2(NOLOAD) : {
29        . = ALIGN(4);
30        *(.ram_d2)
31        *(.ram_d2.*)
32        . = ALIGN(4);
33    } >RAM_D2
34
35    .ram_d3(NOLOAD) : {
36        . = ALIGN(4);
37        *(.ram_d3)
38        *(.ram_d3.*)
39        . = ALIGN(4);
40    } >RAM_D3
41
42    _ramfunc_start_lma = LOADADDR(.ramfunc);
43    .ramfunc : {
44        . = ALIGN(4);
45        _ramfunc_start_vma = .;
46         *(.RamFunc)        /* .RamFunc sections */
47         *(.RamFunc*)       /* .RamFunc* sections */
48         . = ALIGN(4);
49         _ramfunc_end = .;        /* define a global symbol at data end */
50    } >ITCMRAM AT>FLASH
51
52    .text :
53    {
54        . = ALIGN(4);
55        _stext = .;
56        KEEP(*(.isr_vector))            /* Startup code */
57
58        . = ALIGN(4);
59        *(.text)                        /* remaining code */
60        *(.text.*)                      /* remaining code */
61        *(.rodata)                      /* read-only data (constants) */
62        *(.rodata*)
63        *(.glue_7)
64        *(.glue_7t)
65        *(.gnu.linkonce.t*)
66
67        /* section information for finsh shell */
68        . = ALIGN(4);
69        __fsymtab_start = .;
70        KEEP(*(FSymTab))
71        __fsymtab_end = .;
72
73        . = ALIGN(4);
74        __vsymtab_start = .;
75        KEEP(*(VSymTab))
76        __vsymtab_end = .;
77
78        /* section information for utest */
79        . = ALIGN(4);
80        __rt_utest_tc_tab_start = .;
81        KEEP(*(UtestTcTab))
82        __rt_utest_tc_tab_end = .;
83
84        /* section information for at server */
85        . = ALIGN(4);
86        __rtatcmdtab_start = .;
87        KEEP(*(RtAtCmdTab))
88        __rtatcmdtab_end = .;
89        . = ALIGN(4);
90
91        /* section information for modules */
92        . = ALIGN(4);
93        __rtmsymtab_start = .;
94        KEEP(*(RTMSymTab))
95        __rtmsymtab_end = .;
96
97        /* section information for initial. */
98        . = ALIGN(4);
99        __rt_init_start = .;
100        KEEP(*(SORT(.rti_fn*)))
101        __rt_init_end = .;
102
103        . = ALIGN(4);
104
105        PROVIDE(__ctors_start__ = .);
106        KEEP (*(SORT(.init_array.*)))
107        KEEP (*(.init_array))
108        PROVIDE(__ctors_end__ = .);
109
110        PROVIDE(__dtors_start__ = .);
111        KEEP (*(SORT(.fini_array.*)))
112        KEEP (*(.fini_array))
113        KEEP(*(SORT(.dtors.*)))
114        KEEP(*(.dtors))
115        PROVIDE(__dtors_end__ = .);
116
117        . = ALIGN(4);
118
119        _etext = .;
120    } >FLASH
121
122    /* .ARM.exidx is sorted, so has to go in its own output section.  */
123    .ARM.exidx :
124    {
125        . = ALIGN(4);
126        __exidx_start = .;
127        *(.ARM.exidx* .gnu.linkonce.armexidx.*)
128        *(.ARM.extab*)
129        . = ALIGN(4);
130        __exidx_end = .;
131    } >FLASH
132
133    /* .data section which is used for initialized data */
134
135    _sidata = LOADADDR(.data);
136    _data_start_lma = LOADADDR(.data);
137    .data :
138    {
139        . = ALIGN(4);
140        /* This is used by the startup in order to initialize the .data secion */
141        _sdata = . ;
142        _data_start_vma = .;
143
144        *(.data)
145        *(.data.*)
146        *(.gnu.linkonce.d*)
147
148
149        . = ALIGN(4);
150        /* This is used by the startup in order to initialize the .data secion */
151        _edata = . ;
152        _data_end = .;
153    } >DTCMRAM AT>FLASH
154
155    __bss_start = .;
156    .bss (NOLOAD):
157    {
158        . = ALIGN(4);
159        /* This is used by the startup in order to initialize the .bss secion */
160        _sbss = .;
161
162        *(.bss)
163        *(.bss.*)
164        *(COMMON)
165
166        . = ALIGN(4);
167        /* This is used by the startup in order to initialize the .bss secion */
168        _ebss = . ;
169
170        *(.bss.init)
171    } > DTCMRAM
172    __bss_end = .;
173    _heap_start = .;
174    _end = .;
175
176    _heap_end = ORIGIN(DTCMRAM) + LENGTH(DTCMRAM) - _system_stack_size;
177    _sstack = _heap_end;
178    _estack = _heap_end + _system_stack_size;
179
180    /* Stabs debugging sections.  */
181    .stab          0 : { *(.stab) }
182    .stabstr       0 : { *(.stabstr) }
183    .stab.excl     0 : { *(.stab.excl) }
184    .stab.exclstr  0 : { *(.stab.exclstr) }
185    .stab.index    0 : { *(.stab.index) }
186    .stab.indexstr 0 : { *(.stab.indexstr) }
187    .comment       0 : { *(.comment) }
188    /* DWARF debug sections.
189     * Symbols in the DWARF debugging sections are relative to the beginning
190     * of the section so we begin them at 0.  */
191    /* DWARF 1 */
192    .debug          0 : { *(.debug) }
193    .line           0 : { *(.line) }
194    /* GNU DWARF 1 extensions */
195    .debug_srcinfo  0 : { *(.debug_srcinfo) }
196    .debug_sfnames  0 : { *(.debug_sfnames) }
197    /* DWARF 1.1 and DWARF 2 */
198    .debug_aranges  0 : { *(.debug_aranges) }
199    .debug_pubnames 0 : { *(.debug_pubnames) }
200    /* DWARF 2 */
201    .debug_info     0 : { *(.debug_info .gnu.linkonce.wi.*) }
202    .debug_abbrev   0 : { *(.debug_abbrev) }
203    .debug_line     0 : { *(.debug_line) }
204    .debug_frame    0 : { *(.debug_frame) }
205    .debug_str      0 : { *(.debug_str) }
206    .debug_loc      0 : { *(.debug_loc) }
207    .debug_macinfo  0 : { *(.debug_macinfo) }
208    /* SGI/MIPS DWARF 2 extensions */
209    .debug_weaknames 0 : { *(.debug_weaknames) }
210    .debug_funcnames 0 : { *(.debug_funcnames) }
211    .debug_typenames 0 : { *(.debug_typenames) }
212    .debug_varnames  0 : { *(.debug_varnames) }
213}
214