1/*
2** ###################################################################
3**     Processors:          LPC5506JBD64
4**                          LPC5506JHI48
5**
6**     Compiler:            GNU C Compiler
7**     Reference manual:    LPC55S0x/LPC550x User manual Rev.0.3  14 August 2020
8**     Version:             rev. 1.0, 2020-04-09
9**     Build:               b220622
10**
11**     Abstract:
12**         Linker file for the GNU C Compiler
13**
14**     Copyright 2016 Freescale Semiconductor, Inc.
15**     Copyright 2016-2022 NXP
16**     All rights reserved.
17**
18**     SPDX-License-Identifier: BSD-3-Clause
19**
20**     http:                 www.nxp.com
21**     mail:                 support@nxp.com
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 = 0x20000000, LENGTH = 0x00000200
38  m_text                (RX)  : ORIGIN = 0x20000200, LENGTH = 0x0000FE00
39  m_data                (RW)  : ORIGIN = 0x04000000, LENGTH = 0x00004000
40  m_sram3               (RW)  : ORIGIN = 0x20010000, LENGTH = 0x00004000
41}
42
43/* Define output sections */
44SECTIONS
45{
46  /* The startup code goes first into internal flash */
47  .interrupts :
48  {
49    . = ALIGN(4);
50    KEEP(*(.isr_vector))     /* Startup code */
51    . = ALIGN(4);
52  } > m_interrupts
53
54  /* The program code and other data goes into internal flash */
55  .text :
56  {
57    . = ALIGN(4);
58    *(.text)                 /* .text sections (code) */
59    *(.text*)                /* .text* sections (code) */
60    *(.rodata)               /* .rodata sections (constants, strings, etc.) */
61    *(.rodata*)              /* .rodata* sections (constants, strings, etc.) */
62    *(.glue_7)               /* glue arm to thumb code */
63    *(.glue_7t)              /* glue thumb to arm code */
64    *(.eh_frame)
65    KEEP (*(.init))
66    KEEP (*(.fini))
67    . = ALIGN(4);
68  } > m_text
69
70  .ARM.extab :
71  {
72    *(.ARM.extab* .gnu.linkonce.armextab.*)
73  } > m_text
74
75  .ARM :
76  {
77    __exidx_start = .;
78    *(.ARM.exidx*)
79    __exidx_end = .;
80  } > m_text
81
82 .ctors :
83  {
84    __CTOR_LIST__ = .;
85    /* gcc uses crtbegin.o to find the start of
86       the constructors, so we make sure it is
87       first.  Because this is a wildcard, it
88       doesn't matter if the user does not
89       actually link against crtbegin.o; the
90       linker won't look for a file to match a
91       wildcard.  The wildcard also means that it
92       doesn't matter which directory crtbegin.o
93       is in.  */
94    KEEP (*crtbegin.o(.ctors))
95    KEEP (*crtbegin?.o(.ctors))
96    /* We don't want to include the .ctor section from
97       from the crtend.o file until after the sorted ctors.
98       The .ctor section from the crtend file contains the
99       end of ctors marker and it must be last */
100    KEEP (*(EXCLUDE_FILE(*crtend?.o *crtend.o) .ctors))
101    KEEP (*(SORT(.ctors.*)))
102    KEEP (*(.ctors))
103    __CTOR_END__ = .;
104  } > m_text
105
106  .dtors :
107  {
108    __DTOR_LIST__ = .;
109    KEEP (*crtbegin.o(.dtors))
110    KEEP (*crtbegin?.o(.dtors))
111    KEEP (*(EXCLUDE_FILE(*crtend?.o *crtend.o) .dtors))
112    KEEP (*(SORT(.dtors.*)))
113    KEEP (*(.dtors))
114    __DTOR_END__ = .;
115  } > m_text
116
117  .preinit_array :
118  {
119    PROVIDE_HIDDEN (__preinit_array_start = .);
120    KEEP (*(.preinit_array*))
121    PROVIDE_HIDDEN (__preinit_array_end = .);
122  } > m_text
123
124  .init_array :
125  {
126    PROVIDE_HIDDEN (__init_array_start = .);
127    KEEP (*(SORT(.init_array.*)))
128    KEEP (*(.init_array*))
129    PROVIDE_HIDDEN (__init_array_end = .);
130  } > m_text
131
132  .fini_array :
133  {
134    PROVIDE_HIDDEN (__fini_array_start = .);
135    KEEP (*(SORT(.fini_array.*)))
136    KEEP (*(.fini_array*))
137    PROVIDE_HIDDEN (__fini_array_end = .);
138  } > m_text
139
140  __etext = .;    /* define a global symbol at end of code */
141  __DATA_ROM = .; /* Symbol is used by startup for data initialization */
142
143  .data : AT(__DATA_ROM)
144  {
145    . = ALIGN(4);
146    __DATA_RAM = .;
147    __data_start__ = .;      /* create a global symbol at data start */
148    *(.ramfunc*)             /* for functions in ram */
149    *(.data)                 /* .data sections */
150    *(.data*)                /* .data* sections */
151    KEEP(*(.jcr*))
152    . = ALIGN(4);
153    __data_end__ = .;        /* define a global symbol at data end */
154  } > m_data
155
156  __DATA_END = __DATA_ROM + (__data_end__ - __data_start__);
157  text_end = ORIGIN(m_text) + LENGTH(m_text);
158  ASSERT(__DATA_END <= text_end, "region m_text overflowed with text and data")
159
160  /* Uninitialized data section */
161  .bss :
162  {
163    /* This is used by the startup in order to initialize the .bss section */
164    . = ALIGN(4);
165    __START_BSS = .;
166    __bss_start__ = .;
167    *(.bss)
168    *(.bss*)
169    *(COMMON)
170    . = ALIGN(4);
171    __bss_end__ = .;
172    __END_BSS = .;
173  } > m_data
174
175  .heap :
176  {
177    . = ALIGN(8);
178    __end__ = .;
179    PROVIDE(end = .);
180    __HeapBase = .;
181    . += HEAP_SIZE;
182    __HeapLimit = .;
183    __heap_limit = .; /* Add for _sbrk */
184  } > m_data
185
186  .stack :
187  {
188    . = ALIGN(8);
189    . += STACK_SIZE;
190  } > m_data
191
192
193  /* Initializes stack on the end of block */
194  __StackTop   = ORIGIN(m_data) + LENGTH(m_data);
195  __StackLimit = __StackTop - STACK_SIZE;
196  PROVIDE(__stack = __StackTop);
197
198  .ARM.attributes 0 : { *(.ARM.attributes) }
199
200  ASSERT(__StackLimit >= __HeapLimit, "region m_data overflowed with stack and heap")
201}
202
203