1/* Memory regions.*/
2MEMORY
3{
4  FLASH (rx) : ORIGIN = 0x08000000, LENGTH = 256K
5  RAM (rwx)  : ORIGIN = 0x20000000, LENGTH = 32K
6}
7
8/* Entry Point */
9ENTRY(Reset_Handler)
10
11_estack = 0x20000000 + 32K;
12
13/* Define output sections */
14SECTIONS
15{
16	.text :
17	{
18		KEEP(*(.isr_vector))
19		*(.text*)
20
21		KEEP(*(.init))
22		KEEP(*(.fini))
23
24		/* .ctors */
25		*crtbegin.o(.ctors)
26		*crtbegin?.o(.ctors)
27		*(EXCLUDE_FILE(*crtend?.o *crtend.o) .ctors)
28		*(SORT(.ctors.*))
29		*(.ctors)
30
31		/* .dtors */
32 		*crtbegin.o(.dtors)
33 		*crtbegin?.o(.dtors)
34 		*(EXCLUDE_FILE(*crtend?.o *crtend.o) .dtors)
35 		*(SORT(.dtors.*))
36 		*(.dtors)
37
38		*(.rodata*)
39
40		KEEP(*(.eh_frame*))
41	} > FLASH
42
43	.ARM.extab :
44	{
45		*(.ARM.extab* .gnu.linkonce.armextab.*)
46	} > FLASH
47
48	__exidx_start = .;
49	.ARM.exidx :
50	{
51		*(.ARM.exidx* .gnu.linkonce.armexidx.*)
52	} > FLASH
53	__exidx_end = .;
54	__etext = .;
55
56	/* used by the startup to initialize data */
57	_sidata = __etext;
58
59	.data : AT (__etext)
60	{
61		__data_start__ = .;
62		_sdata = .;
63		*(vtable)
64		*(.data*)
65
66		. = ALIGN(4);
67		/* preinit data */
68		PROVIDE_HIDDEN (__preinit_array_start = .);
69		KEEP(*(.preinit_array))
70		PROVIDE_HIDDEN (__preinit_array_end = .);
71
72		. = ALIGN(4);
73		/* init data */
74		PROVIDE_HIDDEN (__init_array_start = .);
75		KEEP(*(SORT(.init_array.*)))
76		KEEP(*(.init_array))
77		PROVIDE_HIDDEN (__init_array_end = .);
78
79
80		. = ALIGN(4);
81		/* finit data */
82		PROVIDE_HIDDEN (__fini_array_start = .);
83		KEEP(*(SORT(.fini_array.*)))
84		KEEP(*(.fini_array))
85		PROVIDE_HIDDEN (__fini_array_end = .);
86
87		KEEP(*(.jcr*))
88		. = ALIGN(4);
89		/* All data end */
90		__data_end__ = .;
91		_edata = .;
92	} > RAM
93
94	.bss :
95	{
96		. = ALIGN(4);
97		__bss_start__ = .;
98		_sbss = .;
99		*(.bss*)
100		*(COMMON)
101		. = ALIGN(4);
102		__bss_end__ = .;
103		_ebss = .;
104	} > RAM
105
106	.heap (COPY):
107	{
108		__end__ = .;
109		PROVIDE(_end = .);
110		PROVIDE(end = .);
111		*(.heap*)
112		__HeapLimit = .;
113	} > RAM
114
115	/* .stack_dummy section doesn't contains any symbols. It is only
116	 * used for linker to calculate size of stack sections, and assign
117	 * values to stack symbols later */
118	.stack_dummy (COPY):
119	{
120		*(.stack*)
121	} > RAM
122
123	/* Set stack top to end of RAM, and stack limit move down by
124	 * size of stack_dummy section */
125	__StackTop = ORIGIN(RAM) + LENGTH(RAM);
126	__StackLimit = __StackTop - SIZEOF(.stack_dummy);
127	PROVIDE(__stack = __StackTop);
128
129	/* Check if data + heap + stack exceeds RAM limit */
130	ASSERT(__StackLimit >= __HeapLimit, "region RAM overflowed with stack")
131}
132