1/*
2** ###################################################################
3**     Processor:           MIMX8MQ6DVAJZ
4**     Compiler:            GNU C Compiler
5**     Reference manual:    IMX8MDQLQRM, Rev. 0, Jan. 2018
6**     Version:             rev. 4.0, 2018-01-26
7**     Build:               b200331
8**
9**     Abstract:
10**         Linker file for the GNU C Compiler
11**
12**     Copyright 2016 Freescale Semiconductor, Inc.
13**     Copyright 2016-2020 NXP
14**     All rights reserved.
15**
16**     SPDX-License-Identifier: BSD-3-Clause
17**
18**     http:                 www.nxp.com
19**     mail:                 support@nxp.com
20**
21** ###################################################################
22*/
23
24/* Entry Point */
25ENTRY(Reset_Handler)
26
27HEAP_SIZE  = DEFINED(__heap_size__)  ? __heap_size__  : 0x0400;
28STACK_SIZE = DEFINED(__stack_size__) ? __stack_size__ : 0x0400;
29
30/* Specify the memory areas */
31MEMORY
32{
33  m_interrupts          (RX)  : ORIGIN = 0x80000000, LENGTH = 0x00000240
34  m_text                (RX)  : ORIGIN = 0x80000240, LENGTH = 0x001FFDC0
35  m_data                (RW)  : ORIGIN = 0x80200000, LENGTH = 0x00200000
36  m_data2               (RW)  : ORIGIN = 0x80400000, LENGTH = 0x00C00000
37}
38
39/* Define output sections */
40SECTIONS
41{
42/* The startup code goes first into internal RAM */
43  .interrupts :
44  {
45    __VECTOR_TABLE = .;
46    __Vectors = .;
47    . = ALIGN(4);
48    KEEP(*(.isr_vector))     /* Startup code */
49    . = ALIGN(4);
50  } > m_interrupts
51
52  .resource_table :
53  {
54    . = ALIGN(8);
55    KEEP(*(.resource_table)) /* Resource table */
56    . = ALIGN(8);
57  } > m_text
58
59    /* The program code and other data goes into internal RAM */
60  .text :
61  {
62    . = ALIGN(4);
63    *(.text)                 /* .text sections (code) */
64    *(.text*)                /* .text* sections (code) */
65    *(.rodata)               /* .rodata sections (constants, strings, etc.) */
66    *(.rodata*)              /* .rodata* sections (constants, strings, etc.) */
67    *(.glue_7)               /* glue arm to thumb code */
68    *(.glue_7t)              /* glue thumb to arm code */
69    *(.eh_frame)
70    KEEP (*(.init))
71    KEEP (*(.fini))
72    . = ALIGN(4);
73  } > m_text
74
75  .ARM.extab :
76  {
77    *(.ARM.extab* .gnu.linkonce.armextab.*)
78  } > m_text
79
80  .ARM :
81  {
82    __exidx_start = .;
83    *(.ARM.exidx*)
84    __exidx_end = .;
85  } > m_text
86
87 .ctors :
88  {
89    __CTOR_LIST__ = .;
90    /* gcc uses crtbegin.o to find the start of
91       the constructors, so we make sure it is
92       first.  Because this is a wildcard, it
93       doesn't matter if the user does not
94       actually link against crtbegin.o; the
95       linker won't look for a file to match a
96       wildcard.  The wildcard also means that it
97       doesn't matter which directory crtbegin.o
98       is in.  */
99    KEEP (*crtbegin.o(.ctors))
100    KEEP (*crtbegin?.o(.ctors))
101    /* We don't want to include the .ctor section from
102       from the crtend.o file until after the sorted ctors.
103       The .ctor section from the crtend file contains the
104       end of ctors marker and it must be last */
105    KEEP (*(EXCLUDE_FILE(*crtend?.o *crtend.o) .ctors))
106    KEEP (*(SORT(.ctors.*)))
107    KEEP (*(.ctors))
108    __CTOR_END__ = .;
109  } > m_text
110
111  .dtors :
112  {
113    __DTOR_LIST__ = .;
114    KEEP (*crtbegin.o(.dtors))
115    KEEP (*crtbegin?.o(.dtors))
116    KEEP (*(EXCLUDE_FILE(*crtend?.o *crtend.o) .dtors))
117    KEEP (*(SORT(.dtors.*)))
118    KEEP (*(.dtors))
119    __DTOR_END__ = .;
120  } > m_text
121
122  .preinit_array :
123  {
124    PROVIDE_HIDDEN (__preinit_array_start = .);
125    KEEP (*(.preinit_array*))
126    PROVIDE_HIDDEN (__preinit_array_end = .);
127  } > m_text
128
129  .init_array :
130  {
131    PROVIDE_HIDDEN (__init_array_start = .);
132    KEEP (*(SORT(.init_array.*)))
133    KEEP (*(.init_array*))
134    PROVIDE_HIDDEN (__init_array_end = .);
135  } > m_text
136
137  .fini_array :
138  {
139    PROVIDE_HIDDEN (__fini_array_start = .);
140    KEEP (*(SORT(.fini_array.*)))
141    KEEP (*(.fini_array*))
142    PROVIDE_HIDDEN (__fini_array_end = .);
143  } > m_text
144
145  __etext = .;    /* define a global symbol at end of code */
146  __DATA_ROM = .; /* Symbol is used by startup for data initialization */
147
148  .data : AT(__DATA_ROM)
149  {
150    . = ALIGN(4);
151    __DATA_RAM = .;
152    __data_start__ = .;      /* create a global symbol at data start */
153    *(.data)                 /* .data sections */
154    *(.data*)                /* .data* sections */
155    KEEP(*(.jcr*))
156    . = ALIGN(4);
157    __data_end__ = .;        /* define a global symbol at data end */
158  } > m_data
159
160  __CACHE_REGION_START = ORIGIN(m_interrupts);
161  __CACHE_REGION_SIZE  = LENGTH(m_interrupts) + LENGTH(m_text) + LENGTH(m_data);
162
163  __NDATA_ROM = __DATA_ROM + SIZEOF(.data); /* Symbol is used by startup for ncache data initialization */
164
165  .ncache.init : AT(__NDATA_ROM)
166  {
167    __noncachedata_start__ = .;   /* create a global symbol at ncache data start */
168    *(NonCacheable.init)
169    . = ALIGN(4);
170    __noncachedata_init_end__ = .;   /* create a global symbol at initialized ncache data end */
171  } > m_data2
172
173  . = __noncachedata_init_end__;
174  .ncache :
175  {
176    *(NonCacheable)
177    . = ALIGN(4);
178    __noncachedata_end__ = .;     /* define a global symbol at ncache data end */
179  } > m_data2
180
181  __DATA_END = __DATA_ROM + (__data_end__ - __data_start__);
182  text_end = ORIGIN(m_text) + LENGTH(m_text);
183  ASSERT(__DATA_END <= text_end, "region m_text overflowed with text and data")
184
185  /* Uninitialized data section */
186  .bss :
187  {
188    /* This is used by the startup in order to initialize the .bss section */
189    . = ALIGN(4);
190    __START_BSS = .;
191    __bss_start__ = .;
192    *(.bss)
193    *(.bss*)
194    *(COMMON)
195    . = ALIGN(4);
196    __bss_end__ = .;
197    __END_BSS = .;
198  } > m_data
199
200  .heap :
201  {
202    . = ALIGN(8);
203    __end__ = .;
204    PROVIDE(end = .);
205    __HeapBase = .;
206    . += HEAP_SIZE;
207    __HeapLimit = .;
208    __heap_limit = .; /* Add for _sbrk */
209  } > m_data
210
211  .stack :
212  {
213    . = ALIGN(8);
214    . += STACK_SIZE;
215  } > m_data
216
217  /* Initializes stack on the end of block */
218  __StackTop   = ORIGIN(m_data) + LENGTH(m_data);
219  __StackLimit = __StackTop - STACK_SIZE;
220  PROVIDE(__stack = __StackTop);
221
222  .ARM.attributes 0 : { *(.ARM.attributes) }
223
224  ASSERT(__StackLimit >= __HeapLimit, "region m_data overflowed with stack and heap")
225}
226
227