1/*
2** ###################################################################
3**     Processors:          MK22FN256CAH12
4**                          MK22FN256VDC12
5**                          MK22FN256VLH12
6**                          MK22FN256VLL12
7**                          MK22FN256VMP12
8**
9**     Compiler:            GNU C Compiler
10**     Reference manual:    K22P121M120SF8RM, Rev. 1, March 24, 2014
11**     Version:             rev. 1.8, 2015-02-19
12**     Build:               b210812
13**
14**     Abstract:
15**         Linker file for the GNU C Compiler
16**
17**     Copyright 2016 Freescale Semiconductor, Inc.
18**     Copyright 2016-2021 NXP
19**     All rights reserved.
20**
21**     SPDX-License-Identifier: BSD-3-Clause
22**
23**     http:                 www.nxp.com
24**     mail:                 support@nxp.com
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__ : 0x0400;
34
35/* Specify the memory areas */
36MEMORY
37{
38  m_interrupts          (RX)  : ORIGIN = 0x1FFFC000, LENGTH = 0x00000400
39  m_text                (RX)  : ORIGIN = 0x1FFFC400, LENGTH = 0x00003C00
40  m_data                (RW)  : ORIGIN = 0x20000000, LENGTH = 0x00008000
41}
42
43/* Define output sections */
44SECTIONS
45{
46  /* The startup code goes first into internal RAM */
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 RAM */
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    *(.data)                 /* .data sections */
149    *(.data*)                /* .data* sections */
150    *(NonCacheable.init)     /* NonCacheable init section */
151    *(NonCacheable)          /* NonCacheable section */
152    *(CodeQuickAccess)       /* quick access code section */
153    *(DataQuickAccess)       /* quick access data section */
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