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1/*
2** ###################################################################
3** Processors: LPC822M101JDH20
4** LPC822M101JHI33
5**
6** Compiler: GNU C Compiler
7** Reference manual: LPC82x User manual Rev.1.2 5 October 2016
8** Version: rev. 1.0, 2017-10-17
9** Build: b200408
10**
11** Abstract:
12** Linker file for the GNU C Compiler
13**
14** Copyright 2016 Freescale Semiconductor, Inc.
15** Copyright 2016-2020 NXP
16** All rights reserved.
17**
18** SPDX-License-Identifier: BSD-3-Clause
19**
20** http: www.nxp.com
21** mail: [email protected]
22**
23** ###################################################################
24*/
25
26
27
28/* Entry Point */
29ENTRY(Reset_Handler)
30
31HEAP_SIZE = DEFINED(__heap_size__) ? __heap_size__ : 0x0400;
32STACK_SIZE = DEFINED(__stack_size__) ? __stack_size__ : 0x0800;
33
34/* Specify the memory areas */
35MEMORY
36{
37 m_interrupts (RX) : ORIGIN = 0x10000000, LENGTH = 0x00000200
38 m_text (RX) : ORIGIN = 0x10000200, LENGTH = 0x000005F0
39 m_data (RW) : ORIGIN = 0x100007F0, LENGTH = 0x000007F0
40}
41
42/* Define output sections */
43SECTIONS
44{
45 /* The startup code goes first into internal flash */
46 .interrupts :
47 {
48 . = ALIGN(4);
49 KEEP(*(.isr_vector)) /* Startup code */
50 . = ALIGN(4);
51 } > m_interrupts
52
53 /* The program code and other data goes into internal flash */
54 .text :
55 {
56 . = ALIGN(4);
57 *(.text) /* .text sections (code) */
58 *(.text*) /* .text* sections (code) */
59 *(.rodata) /* .rodata sections (constants, strings, etc.) */
60 *(.rodata*) /* .rodata* sections (constants, strings, etc.) */
61 *(.glue_7) /* glue arm to thumb code */
62 *(.glue_7t) /* glue thumb to arm code */
63 *(.eh_frame)
64 KEEP (*(.init))
65 KEEP (*(.fini))
66 . = ALIGN(4);
67 } > m_text
68
69 .ARM.extab :
70 {
71 *(.ARM.extab* .gnu.linkonce.armextab.*)
72 } > m_text
73
74 .ARM :
75 {
76 __exidx_start = .;
77 *(.ARM.exidx*)
78 __exidx_end = .;
79 } > m_text
80
81 .ctors :
82 {
83 __CTOR_LIST__ = .;
84 /* gcc uses crtbegin.o to find the start of
85 the constructors, so we make sure it is
86 first. Because this is a wildcard, it
87 doesn't matter if the user does not
88 actually link against crtbegin.o; the
89 linker won't look for a file to match a
90 wildcard. The wildcard also means that it
91 doesn't matter which directory crtbegin.o
92 is in. */
93 KEEP (*crtbegin.o(.ctors))
94 KEEP (*crtbegin?.o(.ctors))
95 /* We don't want to include the .ctor section from
96 from the crtend.o file until after the sorted ctors.
97 The .ctor section from the crtend file contains the
98 end of ctors marker and it must be last */
99 KEEP (*(EXCLUDE_FILE(*crtend?.o *crtend.o) .ctors))
100 KEEP (*(SORT(.ctors.*)))
101 KEEP (*(.ctors))
102 __CTOR_END__ = .;
103 } > m_text
104
105 .dtors :
106 {
107 __DTOR_LIST__ = .;
108 KEEP (*crtbegin.o(.dtors))
109 KEEP (*crtbegin?.o(.dtors))
110 KEEP (*(EXCLUDE_FILE(*crtend?.o *crtend.o) .dtors))
111 KEEP (*(SORT(.dtors.*)))
112 KEEP (*(.dtors))
113 __DTOR_END__ = .;
114 } > m_text
115
116 .preinit_array :
117 {
118 PROVIDE_HIDDEN (__preinit_array_start = .);
119 KEEP (*(.preinit_array*))
120 PROVIDE_HIDDEN (__preinit_array_end = .);
121 } > m_text
122
123 .init_array :
124 {
125 PROVIDE_HIDDEN (__init_array_start = .);
126 KEEP (*(SORT(.init_array.*)))
127 KEEP (*(.init_array*))
128 PROVIDE_HIDDEN (__init_array_end = .);
129 } > m_text
130
131 .fini_array :
132 {
133 PROVIDE_HIDDEN (__fini_array_start = .);
134 KEEP (*(SORT(.fini_array.*)))
135 KEEP (*(.fini_array*))
136 PROVIDE_HIDDEN (__fini_array_end = .);
137 } > m_text
138
139 __etext = .; /* define a global symbol at end of code */
140 __DATA_ROM = .; /* Symbol is used by startup for data initialization */
141
142 .data : AT(__DATA_ROM)
143 {
144 . = ALIGN(4);
145 __DATA_RAM = .;
146 __data_start__ = .; /* create a global symbol at data start */
147 *(.ramfunc*) /* for functions in ram */
148 *(.data) /* .data sections */
149 *(.data*) /* .data* sections */
150 KEEP(*(.jcr*))
151 . = ALIGN(4);
152 __data_end__ = .; /* define a global symbol at data end */
153 } > m_data
154
155 __DATA_END = __DATA_ROM + (__data_end__ - __data_start__);
156 text_end = ORIGIN(m_text) + LENGTH(m_text);
157 ASSERT(__DATA_END <= text_end, "region m_text overflowed with text and data")
158
159 /* Uninitialized data section */
160 .bss :
161 {
162 /* This is used by the startup in order to initialize the .bss section */
163 . = ALIGN(4);
164 __START_BSS = .;
165 __bss_start__ = .;
166 *(.bss)
167 *(.bss*)
168 *(COMMON)
169 . = ALIGN(4);
170 __bss_end__ = .;
171 __END_BSS = .;
172 } > m_data
173
174 .heap :
175 {
176 . = ALIGN(8);
177 __end__ = .;
178 PROVIDE(end = .);
179 __HeapBase = .;
180 . += HEAP_SIZE;
181 __HeapLimit = .;
182 __heap_limit = .; /* Add for _sbrk */
183 } > m_data
184
185 .stack :
186 {
187 . = ALIGN(8);
188 . += STACK_SIZE;
189 } > m_data
190
191 /* Initializes stack on the end of block */
192 __StackTop = ORIGIN(m_data) + LENGTH(m_data);
193 __StackLimit = __StackTop - STACK_SIZE;
194 PROVIDE(__stack = __StackTop);
195
196 .ARM.attributes 0 : { *(.ARM.attributes) }
197
198 ASSERT(__StackLimit >= __HeapLimit, "region m_data overflowed with stack and heap")
199}
200