1/*
2** ###################################################################
3**     Processors:          MIMX8MM6CVTKZ
4**                          MIMX8MM6DVTLZ
5**
6**     Compiler:            GNU C Compiler
7**     Reference manual:    MX8MMRM, Rev. 0, 02/2019
8**     Version:             rev. 4.0, 2019-02-18
9**     Build:               b200330
10**
11**     Abstract:
12**         Linker file for the GNU C Compiler
13**
14**     Copyright 2016 Freescale Semiconductor, Inc.
15**     Copyright 2016-2020 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/* Entry Point */
27ENTRY(Reset_Handler)
28
29HEAP_SIZE  = DEFINED(__heap_size__)  ? __heap_size__  : 0x0400;
30STACK_SIZE = DEFINED(__stack_size__) ? __stack_size__ : 0x0400;
31
32/* Specify the memory areas */
33MEMORY
34{
35  m_interrupts          (RX)  : ORIGIN = 0x80000000, LENGTH = 0x00000240
36  m_text                (RX)  : ORIGIN = 0x80000240, LENGTH = 0x001FFDC0
37  m_data                (RW)  : ORIGIN = 0x80200000, LENGTH = 0x00200000
38  m_data2               (RW)  : ORIGIN = 0x80400000, LENGTH = 0x00C00000
39}
40
41/* Define output sections */
42SECTIONS
43{
44/* The startup code goes first into internal RAM */
45  .interrupts :
46  {
47    __VECTOR_TABLE = .;
48    __Vectors = .;
49    . = ALIGN(4);
50    KEEP(*(.isr_vector))     /* Startup code */
51    . = ALIGN(4);
52  } > m_interrupts
53
54  .resource_table :
55  {
56    . = ALIGN(8);
57    KEEP(*(.resource_table)) /* Resource table */
58    . = ALIGN(8);
59  } > m_text
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    *(.glue_7)               /* glue arm to thumb code */
70    *(.glue_7t)              /* glue thumb to arm code */
71    *(.eh_frame)
72    KEEP (*(.init))
73    KEEP (*(.fini))
74    . = ALIGN(4);
75  } > m_text
76
77  .ARM.extab :
78  {
79    *(.ARM.extab* .gnu.linkonce.armextab.*)
80  } > m_text
81
82  .ARM :
83  {
84    __exidx_start = .;
85    *(.ARM.exidx*)
86    __exidx_end = .;
87  } > m_text
88
89 .ctors :
90  {
91    __CTOR_LIST__ = .;
92    /* gcc uses crtbegin.o to find the start of
93       the constructors, so we make sure it is
94       first.  Because this is a wildcard, it
95       doesn't matter if the user does not
96       actually link against crtbegin.o; the
97       linker won't look for a file to match a
98       wildcard.  The wildcard also means that it
99       doesn't matter which directory crtbegin.o
100       is in.  */
101    KEEP (*crtbegin.o(.ctors))
102    KEEP (*crtbegin?.o(.ctors))
103    /* We don't want to include the .ctor section from
104       from the crtend.o file until after the sorted ctors.
105       The .ctor section from the crtend file contains the
106       end of ctors marker and it must be last */
107    KEEP (*(EXCLUDE_FILE(*crtend?.o *crtend.o) .ctors))
108    KEEP (*(SORT(.ctors.*)))
109    KEEP (*(.ctors))
110    __CTOR_END__ = .;
111  } > m_text
112
113  .dtors :
114  {
115    __DTOR_LIST__ = .;
116    KEEP (*crtbegin.o(.dtors))
117    KEEP (*crtbegin?.o(.dtors))
118    KEEP (*(EXCLUDE_FILE(*crtend?.o *crtend.o) .dtors))
119    KEEP (*(SORT(.dtors.*)))
120    KEEP (*(.dtors))
121    __DTOR_END__ = .;
122  } > m_text
123
124  .preinit_array :
125  {
126    PROVIDE_HIDDEN (__preinit_array_start = .);
127    KEEP (*(.preinit_array*))
128    PROVIDE_HIDDEN (__preinit_array_end = .);
129  } > m_text
130
131  .init_array :
132  {
133    PROVIDE_HIDDEN (__init_array_start = .);
134    KEEP (*(SORT(.init_array.*)))
135    KEEP (*(.init_array*))
136    PROVIDE_HIDDEN (__init_array_end = .);
137  } > m_text
138
139  .fini_array :
140  {
141    PROVIDE_HIDDEN (__fini_array_start = .);
142    KEEP (*(SORT(.fini_array.*)))
143    KEEP (*(.fini_array*))
144    PROVIDE_HIDDEN (__fini_array_end = .);
145  } > m_text
146
147  __etext = .;    /* define a global symbol at end of code */
148  __DATA_ROM = .; /* Symbol is used by startup for data initialization */
149
150  .data : AT(__DATA_ROM)
151  {
152    . = ALIGN(4);
153    __DATA_RAM = .;
154    __data_start__ = .;      /* create a global symbol at data start */
155    *(.data)                 /* .data sections */
156    *(.data*)                /* .data* sections */
157    KEEP(*(.jcr*))
158    . = ALIGN(4);
159    __data_end__ = .;        /* define a global symbol at data end */
160  } > m_data
161
162  __CACHE_REGION_START = ORIGIN(m_interrupts);
163  __CACHE_REGION_SIZE  = LENGTH(m_interrupts) + LENGTH(m_text) + LENGTH(m_data);
164
165  __NDATA_ROM = __DATA_ROM + SIZEOF(.data); /* Symbol is used by startup for ncache data initialization */
166
167  .ncache.init : AT(__NDATA_ROM)
168  {
169    __noncachedata_start__ = .;   /* create a global symbol at ncache data start */
170    *(NonCacheable.init)
171    . = ALIGN(4);
172    __noncachedata_init_end__ = .;   /* create a global symbol at initialized ncache data end */
173  } > m_data2
174
175  . = __noncachedata_init_end__;
176  .ncache :
177  {
178    *(NonCacheable)
179    . = ALIGN(4);
180    __noncachedata_end__ = .;     /* define a global symbol at ncache data end */
181  } > m_data2
182
183  __DATA_END = __DATA_ROM + (__data_end__ - __data_start__);
184  text_end = ORIGIN(m_text) + LENGTH(m_text);
185  ASSERT(__DATA_END <= text_end, "region m_text overflowed with text and data")
186
187  /* Uninitialized data section */
188  .bss :
189  {
190    /* This is used by the startup in order to initialize the .bss section */
191    . = ALIGN(4);
192    __START_BSS = .;
193    __bss_start__ = .;
194    *(.bss)
195    *(.bss*)
196    *(COMMON)
197    . = ALIGN(4);
198    __bss_end__ = .;
199    __END_BSS = .;
200  } > m_data
201
202  .heap :
203  {
204    . = ALIGN(8);
205    __end__ = .;
206    PROVIDE(end = .);
207    __HeapBase = .;
208    . += HEAP_SIZE;
209    __HeapLimit = .;
210    __heap_limit = .; /* Add for _sbrk */
211  } > m_data
212
213  .stack :
214  {
215    . = ALIGN(8);
216    . += STACK_SIZE;
217  } > m_data
218
219  /* Initializes stack on the end of block */
220  __StackTop   = ORIGIN(m_data) + LENGTH(m_data);
221  __StackLimit = __StackTop - STACK_SIZE;
222  PROVIDE(__stack = __StackTop);
223
224  .ARM.attributes 0 : { *(.ARM.attributes) }
225
226  ASSERT(__StackLimit >= __HeapLimit, "region m_data overflowed with stack and heap")
227}
228
229