1/*
2** ###################################################################
3**     Processors:          LPC5534JBD100
4**                          LPC5534JBD64
5**                          LPC5534JHI48
6**
7**     Compiler:            GNU C Compiler
8**     Reference manual:    LPC55S3x Reference Manual Rev. DraftG, 07/2021
9**     Version:             rev. 1.1, 2021-08-04
10**     Build:               b210913
11**
12**     Abstract:
13**         Linker file for the GNU C Compiler
14**
15**     Copyright 2016 Freescale Semiconductor, Inc.
16**     Copyright 2016-2021 NXP
17**     All rights reserved.
18**
19**     SPDX-License-Identifier: BSD-3-Clause
20**
21**     http:                 www.nxp.com
22**     mail:                 support@nxp.com
23**
24** ###################################################################
25*/
26
27
28
29/* Entry Point */
30ENTRY(Reset_Handler)
31
32HEAP_SIZE  = DEFINED(__heap_size__)  ? __heap_size__  : 0x0400;
33STACK_SIZE = DEFINED(__stack_size__) ? __stack_size__ : 0x0800;
34
35/* __pkc__ : SRAM A(16K) reserved for; pkc __power_down__ : The first 0x604 bytes reserved to CPU retention for power down mode */
36RETENTION_RAMSIZE = DEFINED(__pkc__) ? 0x00004000 : (DEFINED(__power_down__) ? 0x00000604 : 0x00000000);
37
38/* Specify the memory areas */
39MEMORY
40{
41  m_interrupts          (RX)  : ORIGIN = 0x20000000 + RETENTION_RAMSIZE, LENGTH = 0x00000400
42  m_text                (RX)  : ORIGIN = 0x20000400 + RETENTION_RAMSIZE, LENGTH = 0x0000FC00 - RETENTION_RAMSIZE
43  m_data                (RW)  : ORIGIN = 0x04000000, LENGTH = 0x00004000
44}
45
46/* Define output sections */
47SECTIONS
48{
49  /* The startup code goes first into internal flash */
50  .interrupts :
51  {
52    . = ALIGN(4);
53    KEEP(*(.isr_vector))     /* Startup code */
54    . = ALIGN(4);
55  } > m_interrupts
56
57  /* The program code and other data goes into internal flash */
58  .text :
59  {
60    . = ALIGN(4);
61    *(.text)                 /* .text sections (code) */
62    *(.text*)                /* .text* sections (code) */
63    *(.rodata)               /* .rodata sections (constants, strings, etc.) */
64    *(.rodata*)              /* .rodata* sections (constants, strings, etc.) */
65    *(.glue_7)               /* glue arm to thumb code */
66    *(.glue_7t)              /* glue thumb to arm code */
67    *(.eh_frame)
68    KEEP (*(.init))
69    KEEP (*(.fini))
70    . = ALIGN(4);
71  } > m_text
72
73  .ARM.extab :
74  {
75    *(.ARM.extab* .gnu.linkonce.armextab.*)
76  } > m_text
77
78  .ARM :
79  {
80    __exidx_start = .;
81    *(.ARM.exidx*)
82    __exidx_end = .;
83  } > m_text
84
85 .ctors :
86  {
87    __CTOR_LIST__ = .;
88    /* gcc uses crtbegin.o to find the start of
89       the constructors, so we make sure it is
90       first.  Because this is a wildcard, it
91       doesn't matter if the user does not
92       actually link against crtbegin.o; the
93       linker won't look for a file to match a
94       wildcard.  The wildcard also means that it
95       doesn't matter which directory crtbegin.o
96       is in.  */
97    KEEP (*crtbegin.o(.ctors))
98    KEEP (*crtbegin?.o(.ctors))
99    /* We don't want to include the .ctor section from
100       from the crtend.o file until after the sorted ctors.
101       The .ctor section from the crtend file contains the
102       end of ctors marker and it must be last */
103    KEEP (*(EXCLUDE_FILE(*crtend?.o *crtend.o) .ctors))
104    KEEP (*(SORT(.ctors.*)))
105    KEEP (*(.ctors))
106    __CTOR_END__ = .;
107  } > m_text
108
109  .dtors :
110  {
111    __DTOR_LIST__ = .;
112    KEEP (*crtbegin.o(.dtors))
113    KEEP (*crtbegin?.o(.dtors))
114    KEEP (*(EXCLUDE_FILE(*crtend?.o *crtend.o) .dtors))
115    KEEP (*(SORT(.dtors.*)))
116    KEEP (*(.dtors))
117    __DTOR_END__ = .;
118  } > m_text
119
120  .preinit_array :
121  {
122    PROVIDE_HIDDEN (__preinit_array_start = .);
123    KEEP (*(.preinit_array*))
124    PROVIDE_HIDDEN (__preinit_array_end = .);
125  } > m_text
126
127  .init_array :
128  {
129    PROVIDE_HIDDEN (__init_array_start = .);
130    KEEP (*(SORT(.init_array.*)))
131    KEEP (*(.init_array*))
132    PROVIDE_HIDDEN (__init_array_end = .);
133  } > m_text
134
135  .fini_array :
136  {
137    PROVIDE_HIDDEN (__fini_array_start = .);
138    KEEP (*(SORT(.fini_array.*)))
139    KEEP (*(.fini_array*))
140    PROVIDE_HIDDEN (__fini_array_end = .);
141  } > m_text
142
143  __etext = .;    /* define a global symbol at end of code */
144  __DATA_ROM = .; /* Symbol is used by startup for data initialization */
145
146  .data : AT(__DATA_ROM)
147  {
148    . = ALIGN(4);
149    __DATA_RAM = .;
150    __data_start__ = .;      /* create a global symbol at data start */
151    *(.ramfunc*)             /* for functions in ram */
152    *(.data)                 /* .data sections */
153    *(.data*)                /* .data* sections */
154    KEEP(*(.jcr*))
155    . = ALIGN(4);
156    __data_end__ = .;        /* define a global symbol at data end */
157  } > m_data
158
159  __DATA_END = __DATA_ROM + (__data_end__ - __data_start__);
160  text_end = ORIGIN(m_text) + LENGTH(m_text);
161  ASSERT(__DATA_END <= text_end, "region m_text overflowed with text and data")
162
163  /* Uninitialized data section */
164  .bss :
165  {
166    /* This is used by the startup in order to initialize the .bss section */
167    . = ALIGN(4);
168    __START_BSS = .;
169    __bss_start__ = .;
170    *(.bss)
171    *(.bss*)
172    *(COMMON)
173    . = ALIGN(4);
174    __bss_end__ = .;
175    __END_BSS = .;
176  } > m_data
177
178  .heap :
179  {
180    . = ALIGN(8);
181    __end__ = .;
182    PROVIDE(end = .);
183    __HeapBase = .;
184    . += HEAP_SIZE;
185    __HeapLimit = .;
186    __heap_limit = .; /* Add for _sbrk */
187  } > m_data
188
189  .stack :
190  {
191    . = ALIGN(8);
192    . += STACK_SIZE;
193  } > m_data
194
195  /* Initializes stack on the end of block */
196  __StackTop   = ORIGIN(m_data) + LENGTH(m_data);
197  __StackLimit = __StackTop - STACK_SIZE;
198  PROVIDE(__stack = __StackTop);
199
200  .ARM.attributes 0 : { *(.ARM.attributes) }
201
202  ASSERT(__StackLimit >= __HeapLimit, "region m_data overflowed with stack and heap")
203}
204
205