1/*
2** ###################################################################
3**     Processors:          LPC844M201JBD48
4**                          LPC844M201JBD64
5**                          LPC844M201JHI33
6**                          LPC844M201JHI48
7**
8**     Compiler:            GNU C Compiler
9**     Reference manual:    LPC84x User manual Rev.1.6  8 Dec 2017
10**     Version:             rev. 1.0, 2017-10-17
11**     Build:               b200408
12**
13**     Abstract:
14**         Linker file for the GNU C Compiler
15**
16**     Copyright 2016 Freescale Semiconductor, Inc.
17**     Copyright 2016-2020 NXP
18**     All rights reserved.
19**
20**     SPDX-License-Identifier: BSD-3-Clause
21**
22**     http:                 www.nxp.com
23**     mail:                 support@nxp.com
24**
25** ###################################################################
26*/
27
28
29
30/* Entry Point */
31ENTRY(Reset_Handler)
32
33HEAP_SIZE  = DEFINED(__heap_size__)  ? __heap_size__  : 0x0400;
34STACK_SIZE = DEFINED(__stack_size__) ? __stack_size__ : 0x0800;
35
36/* Specify the memory areas */
37MEMORY
38{
39  m_interrupts          (RX)  : ORIGIN = 0x00000000, LENGTH = 0x00000200
40  m_crp                 (RX)  : ORIGIN = 0x000002FC, LENGTH = 0x00000004
41  m_text                (RX)  : ORIGIN = 0x00000300, LENGTH = 0x0000FD00
42  m_data                (RW)  : ORIGIN = 0x10000000, LENGTH = 0x00001FE0
43}
44
45/* Define output sections */
46SECTIONS
47{
48  /* The startup code goes first into internal flash */
49  .interrupts :
50  {
51    . = ALIGN(4);
52    KEEP(*(.isr_vector))     /* Startup code */
53    . = ALIGN(4);
54  } > m_interrupts
55
56  .crp :
57  {
58    . = ALIGN(4);
59    KEEP(*(.crp))    /* Code Read Protection level (CRP) */
60    . = ALIGN(4);
61  } > m_crp
62
63  /* The program code and other data goes into internal flash */
64  .text :
65  {
66    . = ALIGN(4);
67    *(.text)                 /* .text sections (code) */
68    *(.text*)                /* .text* sections (code) */
69    *(.rodata)               /* .rodata sections (constants, strings, etc.) */
70    *(.rodata*)              /* .rodata* sections (constants, strings, etc.) */
71    *(.glue_7)               /* glue arm to thumb code */
72    *(.glue_7t)              /* glue thumb to arm code */
73    *(.eh_frame)
74    KEEP (*(.init))
75    KEEP (*(.fini))
76    . = ALIGN(4);
77  } > m_text
78
79  .ARM.extab :
80  {
81    *(.ARM.extab* .gnu.linkonce.armextab.*)
82  } > m_text
83
84  .ARM :
85  {
86    __exidx_start = .;
87    *(.ARM.exidx*)
88    __exidx_end = .;
89  } > m_text
90
91 .ctors :
92  {
93    __CTOR_LIST__ = .;
94    /* gcc uses crtbegin.o to find the start of
95       the constructors, so we make sure it is
96       first.  Because this is a wildcard, it
97       doesn't matter if the user does not
98       actually link against crtbegin.o; the
99       linker won't look for a file to match a
100       wildcard.  The wildcard also means that it
101       doesn't matter which directory crtbegin.o
102       is in.  */
103    KEEP (*crtbegin.o(.ctors))
104    KEEP (*crtbegin?.o(.ctors))
105    /* We don't want to include the .ctor section from
106       from the crtend.o file until after the sorted ctors.
107       The .ctor section from the crtend file contains the
108       end of ctors marker and it must be last */
109    KEEP (*(EXCLUDE_FILE(*crtend?.o *crtend.o) .ctors))
110    KEEP (*(SORT(.ctors.*)))
111    KEEP (*(.ctors))
112    __CTOR_END__ = .;
113  } > m_text
114
115  .dtors :
116  {
117    __DTOR_LIST__ = .;
118    KEEP (*crtbegin.o(.dtors))
119    KEEP (*crtbegin?.o(.dtors))
120    KEEP (*(EXCLUDE_FILE(*crtend?.o *crtend.o) .dtors))
121    KEEP (*(SORT(.dtors.*)))
122    KEEP (*(.dtors))
123    __DTOR_END__ = .;
124  } > m_text
125
126  .preinit_array :
127  {
128    PROVIDE_HIDDEN (__preinit_array_start = .);
129    KEEP (*(.preinit_array*))
130    PROVIDE_HIDDEN (__preinit_array_end = .);
131  } > m_text
132
133  .init_array :
134  {
135    PROVIDE_HIDDEN (__init_array_start = .);
136    KEEP (*(SORT(.init_array.*)))
137    KEEP (*(.init_array*))
138    PROVIDE_HIDDEN (__init_array_end = .);
139  } > m_text
140
141  .fini_array :
142  {
143    PROVIDE_HIDDEN (__fini_array_start = .);
144    KEEP (*(SORT(.fini_array.*)))
145    KEEP (*(.fini_array*))
146    PROVIDE_HIDDEN (__fini_array_end = .);
147  } > m_text
148
149  __etext = .;    /* define a global symbol at end of code */
150  __DATA_ROM = .; /* Symbol is used by startup for data initialization */
151
152  .data : AT(__DATA_ROM)
153  {
154    . = ALIGN(4);
155    __DATA_RAM = .;
156    __data_start__ = .;      /* create a global symbol at data start */
157    *(.ramfunc*)             /* for functions in ram */
158    *(.data)                 /* .data sections */
159    *(.data*)                /* .data* sections */
160    KEEP(*(.jcr*))
161    . = ALIGN(4);
162    __data_end__ = .;        /* define a global symbol at data end */
163  } > m_data
164
165  __DATA_END = __DATA_ROM + (__data_end__ - __data_start__);
166  text_end = ORIGIN(m_text) + LENGTH(m_text);
167  ASSERT(__DATA_END <= text_end, "region m_text overflowed with text and data")
168
169  /* Uninitialized data section */
170  .bss :
171  {
172    /* This is used by the startup in order to initialize the .bss section */
173    . = ALIGN(4);
174    __START_BSS = .;
175    __bss_start__ = .;
176    *(.bss)
177    *(.bss*)
178    *(COMMON)
179    . = ALIGN(4);
180    __bss_end__ = .;
181    __END_BSS = .;
182  } > m_data
183
184  .heap :
185  {
186    . = ALIGN(8);
187    __end__ = .;
188    PROVIDE(end = .);
189    __HeapBase = .;
190    . += HEAP_SIZE;
191    __HeapLimit = .;
192    __heap_limit = .; /* Add for _sbrk */
193  } > m_data
194
195  .stack :
196  {
197    . = ALIGN(8);
198    . += STACK_SIZE;
199  } > m_data
200
201  /* Initializes stack on the end of block */
202  __StackTop   = ORIGIN(m_data) + LENGTH(m_data);
203  __StackLimit = __StackTop - STACK_SIZE;
204  PROVIDE(__stack = __StackTop);
205
206  .ARM.attributes 0 : { *(.ARM.attributes) }
207
208  ASSERT(__StackLimit >= __HeapLimit, "region m_data overflowed with stack and heap")
209}
210
211