1/*
2** ###################################################################
3**     Processors:          MIMXRT1021CAF4A
4**                          MIMXRT1021CAF4B
5**                          MIMXRT1021CAG4A
6**                          MIMXRT1021CAG4B
7**                          MIMXRT1021DAF5A
8**                          MIMXRT1021DAF5B
9**                          MIMXRT1021DAG5A
10**                          MIMXRT1021DAG5B
11**
12**     Compiler:            GNU C Compiler
13**     Reference manual:    IMXRT1020RM Rev.2, 01/2021 | IMXRT102XSRM Rev.0
14**     Version:             rev. 0.1, 2017-06-06
15**     Build:               b230821
16**
17**     Abstract:
18**         Linker file for the GNU C Compiler
19**
20**     Copyright 2016 Freescale Semiconductor, Inc.
21**     Copyright 2016-2023 NXP
22**     SPDX-License-Identifier: BSD-3-Clause
23**
24**     http:                 www.nxp.com
25**     mail:                 support@nxp.com
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__ : 0x0400;
35
36/* Specify the memory areas */
37MEMORY
38{
39  m_interrupts          (RX)  : ORIGIN = 0x00000000, LENGTH = 0x00000400
40  m_text                (RX)  : ORIGIN = 0x00000400, LENGTH = 0x0000FC00
41  m_data                (RW)  : ORIGIN = 0x20000000, LENGTH = 0x00010000
42  m_data2               (RW)  : ORIGIN = 0x20200000, LENGTH = 0x00020000
43}
44
45/* Define output sections */
46SECTIONS
47{
48  __NCACHE_REGION_START = ORIGIN(m_data2);
49  __NCACHE_REGION_SIZE  = 0;
50
51  /* The startup code goes first into internal RAM */
52  .interrupts :
53  {
54    __VECTOR_TABLE = .;
55    __Vectors = .;
56    . = ALIGN(4);
57    KEEP(*(.isr_vector))     /* Startup code */
58    . = ALIGN(4);
59  } > m_interrupts
60
61  /* The program code and other data goes into internal RAM */
62  .text :
63  {
64    . = ALIGN(4);
65    *(.text)                 /* .text sections (code) */
66    *(.text*)                /* .text* sections (code) */
67    *(.rodata)               /* .rodata sections (constants, strings, etc.) */
68    *(.rodata*)              /* .rodata* sections (constants, strings, etc.) */
69    *(CodeQuickAccess)       /* quick access code section */
70    *(.glue_7)               /* glue arm to thumb code */
71    *(.glue_7t)              /* glue thumb to arm code */
72    *(.eh_frame)
73    KEEP (*(.init))
74    KEEP (*(.fini))
75    . = ALIGN(4);
76  } > m_text
77
78  .ARM.extab :
79  {
80    *(.ARM.extab* .gnu.linkonce.armextab.*)
81  } > m_text
82
83  .ARM :
84  {
85    __exidx_start = .;
86    *(.ARM.exidx*)
87    __exidx_end = .;
88  } > m_text
89
90 .ctors :
91  {
92    __CTOR_LIST__ = .;
93    /* gcc uses crtbegin.o to find the start of
94       the constructors, so we make sure it is
95       first.  Because this is a wildcard, it
96       doesn't matter if the user does not
97       actually link against crtbegin.o; the
98       linker won't look for a file to match a
99       wildcard.  The wildcard also means that it
100       doesn't matter which directory crtbegin.o
101       is in.  */
102    KEEP (*crtbegin.o(.ctors))
103    KEEP (*crtbegin?.o(.ctors))
104    /* We don't want to include the .ctor section from
105       from the crtend.o file until after the sorted ctors.
106       The .ctor section from the crtend file contains the
107       end of ctors marker and it must be last */
108    KEEP (*(EXCLUDE_FILE(*crtend?.o *crtend.o) .ctors))
109    KEEP (*(SORT(.ctors.*)))
110    KEEP (*(.ctors))
111    __CTOR_END__ = .;
112  } > m_text
113
114  .dtors :
115  {
116    __DTOR_LIST__ = .;
117    KEEP (*crtbegin.o(.dtors))
118    KEEP (*crtbegin?.o(.dtors))
119    KEEP (*(EXCLUDE_FILE(*crtend?.o *crtend.o) .dtors))
120    KEEP (*(SORT(.dtors.*)))
121    KEEP (*(.dtors))
122    __DTOR_END__ = .;
123  } > m_text
124
125  .preinit_array :
126  {
127    PROVIDE_HIDDEN (__preinit_array_start = .);
128    KEEP (*(.preinit_array*))
129    PROVIDE_HIDDEN (__preinit_array_end = .);
130  } > m_text
131
132  .init_array :
133  {
134    PROVIDE_HIDDEN (__init_array_start = .);
135    KEEP (*(SORT(.init_array.*)))
136    KEEP (*(.init_array*))
137    PROVIDE_HIDDEN (__init_array_end = .);
138  } > m_text
139
140  .fini_array :
141  {
142    PROVIDE_HIDDEN (__fini_array_start = .);
143    KEEP (*(SORT(.fini_array.*)))
144    KEEP (*(.fini_array*))
145    PROVIDE_HIDDEN (__fini_array_end = .);
146  } > m_text
147
148  __etext = .;    /* define a global symbol at end of code */
149  __DATA_ROM = .; /* Symbol is used by startup for data initialization */
150
151  __VECTOR_RAM = ORIGIN(m_interrupts);
152  __RAM_VECTOR_TABLE_SIZE_BYTES = 0x0;
153
154  .data : AT(__DATA_ROM)
155  {
156    . = ALIGN(4);
157    __DATA_RAM = .;
158    __data_start__ = .;      /* create a global symbol at data start */
159    *(m_usb_dma_init_data)
160    *(.data)                 /* .data sections */
161    *(.data*)                /* .data* sections */
162    *(DataQuickAccess)       /* quick access data section */
163    KEEP(*(.jcr*))
164    . = ALIGN(4);
165    __data_end__ = .;        /* define a global symbol at data end */
166  } > m_data
167
168  __NDATA_ROM = __DATA_ROM + (__data_end__ - __data_start__);
169  .ncache.init : AT(__NDATA_ROM)
170  {
171    __noncachedata_start__ = .;   /* create a global symbol at ncache data start */
172    *(NonCacheable.init)
173    . = ALIGN(4);
174    __noncachedata_init_end__ = .;   /* create a global symbol at initialized ncache data end */
175  } > m_data
176  . = __noncachedata_init_end__;
177  .ncache :
178  {
179    *(NonCacheable)
180    . = ALIGN(4);
181    __noncachedata_end__ = .;     /* define a global symbol at ncache data end */
182  } > m_data
183
184  __DATA_END = __NDATA_ROM + (__noncachedata_init_end__ - __noncachedata_start__);
185  text_end = ORIGIN(m_text) + LENGTH(m_text);
186  ASSERT(__DATA_END <= text_end, "region m_text overflowed with text and data")
187
188  /* Uninitialized data section */
189  .bss :
190  {
191    /* This is used by the startup in order to initialize the .bss section */
192    . = ALIGN(4);
193    __START_BSS = .;
194    __bss_start__ = .;
195    *(m_usb_dma_noninit_data)
196    *(.bss)
197    *(.bss*)
198    *(COMMON)
199    . = ALIGN(4);
200    __bss_end__ = .;
201    __END_BSS = .;
202  } > m_data
203
204  .heap :
205  {
206    . = ALIGN(8);
207    __end__ = .;
208    PROVIDE(end = .);
209    __HeapBase = .;
210    . += HEAP_SIZE;
211    __HeapLimit = .;
212    __heap_limit = .; /* Add for _sbrk */
213  } > m_data
214
215  .stack :
216  {
217    . = ALIGN(8);
218    . += STACK_SIZE;
219  } > m_data
220
221  /* Initializes stack on the end of block */
222  __StackTop   = ORIGIN(m_data) + LENGTH(m_data);
223  __StackLimit = __StackTop - STACK_SIZE;
224  PROVIDE(__stack = __StackTop);
225
226  .ARM.attributes 0 : { *(.ARM.attributes) }
227
228  ASSERT(__StackLimit >= __HeapLimit, "region m_data overflowed with stack and heap")
229}
230