1/*
2** ###################################################################
3**     Processor:           LPC810M021FN8
4**     Compiler:            GNU C Compiler
5**     Reference manual:    LPC81x User manual Rev.1.6  2 April 2014
6**     Version:             rev. 1.0, 2017-10-17
7**     Build:               b200408
8**
9**     Abstract:
10**         Linker file for the GNU C Compiler
11**
12**     Copyright 2016 Freescale Semiconductor, Inc.
13**     Copyright 2016-2020 NXP
14**     All rights reserved.
15**
16**     SPDX-License-Identifier: BSD-3-Clause
17**
18**     http:                 www.nxp.com
19**     mail:                 support@nxp.com
20**
21** ###################################################################
22*/
23
24
25
26/* Entry Point */
27ENTRY(Reset_Handler)
28
29HEAP_SIZE  = DEFINED(__heap_size__)  ? __heap_size__  : 0x0400;
30STACK_SIZE = DEFINED(__stack_size__) ? __stack_size__ : 0x0800;
31
32/* Specify the memory areas */
33MEMORY
34{
35  m_interrupts          (RX)  : ORIGIN = 0x00000000, LENGTH = 0x00000200
36  m_crp                 (RX)  : ORIGIN = 0x000002FC, LENGTH = 0x00000004
37  m_text                (RX)  : ORIGIN = 0x00000300, LENGTH = 0x00000D00
38  m_data                (RW)  : ORIGIN = 0x10000000, LENGTH = 0x000003E0
39}
40
41/* Define output sections */
42SECTIONS
43{
44  /* The startup code goes first into internal flash */
45  .interrupts :
46  {
47    . = ALIGN(4);
48    KEEP(*(.isr_vector))     /* Startup code */
49    . = ALIGN(4);
50  } > m_interrupts
51
52  .crp :
53  {
54    . = ALIGN(4);
55    KEEP(*(.crp))    /* Code Read Protection level (CRP) */
56    . = ALIGN(4);
57  } > m_crp
58
59  /* The program code and other data goes into internal flash */
60  .text :
61  {
62    . = ALIGN(4);
63    *(.text)                 /* .text sections (code) */
64    *(.text*)                /* .text* sections (code) */
65    *(.rodata)               /* .rodata sections (constants, strings, etc.) */
66    *(.rodata*)              /* .rodata* sections (constants, strings, etc.) */
67    *(.glue_7)               /* glue arm to thumb code */
68    *(.glue_7t)              /* glue thumb to arm code */
69    *(.eh_frame)
70    KEEP (*(.init))
71    KEEP (*(.fini))
72    . = ALIGN(4);
73  } > m_text
74
75  .ARM.extab :
76  {
77    *(.ARM.extab* .gnu.linkonce.armextab.*)
78  } > m_text
79
80  .ARM :
81  {
82    __exidx_start = .;
83    *(.ARM.exidx*)
84    __exidx_end = .;
85  } > m_text
86
87 .ctors :
88  {
89    __CTOR_LIST__ = .;
90    /* gcc uses crtbegin.o to find the start of
91       the constructors, so we make sure it is
92       first.  Because this is a wildcard, it
93       doesn't matter if the user does not
94       actually link against crtbegin.o; the
95       linker won't look for a file to match a
96       wildcard.  The wildcard also means that it
97       doesn't matter which directory crtbegin.o
98       is in.  */
99    KEEP (*crtbegin.o(.ctors))
100    KEEP (*crtbegin?.o(.ctors))
101    /* We don't want to include the .ctor section from
102       from the crtend.o file until after the sorted ctors.
103       The .ctor section from the crtend file contains the
104       end of ctors marker and it must be last */
105    KEEP (*(EXCLUDE_FILE(*crtend?.o *crtend.o) .ctors))
106    KEEP (*(SORT(.ctors.*)))
107    KEEP (*(.ctors))
108    __CTOR_END__ = .;
109  } > m_text
110
111  .dtors :
112  {
113    __DTOR_LIST__ = .;
114    KEEP (*crtbegin.o(.dtors))
115    KEEP (*crtbegin?.o(.dtors))
116    KEEP (*(EXCLUDE_FILE(*crtend?.o *crtend.o) .dtors))
117    KEEP (*(SORT(.dtors.*)))
118    KEEP (*(.dtors))
119    __DTOR_END__ = .;
120  } > m_text
121
122  .preinit_array :
123  {
124    PROVIDE_HIDDEN (__preinit_array_start = .);
125    KEEP (*(.preinit_array*))
126    PROVIDE_HIDDEN (__preinit_array_end = .);
127  } > m_text
128
129  .init_array :
130  {
131    PROVIDE_HIDDEN (__init_array_start = .);
132    KEEP (*(SORT(.init_array.*)))
133    KEEP (*(.init_array*))
134    PROVIDE_HIDDEN (__init_array_end = .);
135  } > m_text
136
137  .fini_array :
138  {
139    PROVIDE_HIDDEN (__fini_array_start = .);
140    KEEP (*(SORT(.fini_array.*)))
141    KEEP (*(.fini_array*))
142    PROVIDE_HIDDEN (__fini_array_end = .);
143  } > m_text
144
145  __etext = .;    /* define a global symbol at end of code */
146  __DATA_ROM = .; /* Symbol is used by startup for data initialization */
147
148  .data : AT(__DATA_ROM)
149  {
150    . = ALIGN(4);
151    __DATA_RAM = .;
152    __data_start__ = .;      /* create a global symbol at data start */
153    *(.ramfunc*)             /* for functions in ram */
154    *(.data)                 /* .data sections */
155    *(.data*)                /* .data* sections */
156    KEEP(*(.jcr*))
157    . = ALIGN(4);
158    __data_end__ = .;        /* define a global symbol at data end */
159  } > m_data
160
161  __DATA_END = __DATA_ROM + (__data_end__ - __data_start__);
162  text_end = ORIGIN(m_text) + LENGTH(m_text);
163  ASSERT(__DATA_END <= text_end, "region m_text overflowed with text and data")
164
165  /* Uninitialized data section */
166  .bss :
167  {
168    /* This is used by the startup in order to initialize the .bss section */
169    . = ALIGN(4);
170    __START_BSS = .;
171    __bss_start__ = .;
172    *(.bss)
173    *(.bss*)
174    *(COMMON)
175    . = ALIGN(4);
176    __bss_end__ = .;
177    __END_BSS = .;
178  } > m_data
179
180  .heap :
181  {
182    . = ALIGN(8);
183    __end__ = .;
184    PROVIDE(end = .);
185    __HeapBase = .;
186    . += HEAP_SIZE;
187    __HeapLimit = .;
188    __heap_limit = .; /* Add for _sbrk */
189  } > m_data
190
191  .stack :
192  {
193    . = ALIGN(8);
194    . += STACK_SIZE;
195  } > m_data
196
197  /* Initializes stack on the end of block */
198  __StackTop   = ORIGIN(m_data) + LENGTH(m_data);
199  __StackLimit = __StackTop - STACK_SIZE;
200  PROVIDE(__stack = __StackTop);
201
202  .ARM.attributes 0 : { *(.ARM.attributes) }
203
204  ASSERT(__StackLimit >= __HeapLimit, "region m_data overflowed with stack and heap")
205}
206
207