1/*
2** ###################################################################
3**     Processors:          MIMXRT685SFAWBR_cm33
4**                          MIMXRT685SFFOB_cm33
5**                          MIMXRT685SFVKB_cm33
6**
7**     Compiler:            GNU C Compiler
8**     Reference manual:    MIMXRT685 User manual Rev. 0.95 11 November 2019
9**     Version:             rev. 1.0, 2018-06-19
10**     Build:               b210303
11**
12**     Abstract:
13**         Linker file for the GNU C Compiler
14**
15**     Copyright 2016 Freescale Semiconductor, Inc.
16**     Copyright 2016-2021 NXP
17**     All rights reserved.
18**
19**     SPDX-License-Identifier: BSD-3-Clause
20**
21**     http:                 www.nxp.com
22**     mail:                 support@nxp.com
23**
24** ###################################################################
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;
34M_VECTOR_RAM_SIZE = DEFINED(__ram_vector_table__) ? 0x00000130 : 0;
35
36/* Specify the memory areas */
37/* The SRAM region [0x10000-0x1BFFF] is reserved for ROM code. */
38/* The SRAM region [0x0-0xFFFF], [0x1C000-0x1FFFF] is reserved for app-specific use cases. */
39/* The SRAM region [0x20000-0x7FFFF] is reserved for Non-cached shared memory between M33 and DSP. */
40MEMORY
41{
42  m_interrupts          (RX)  : ORIGIN = 0x08100000, LENGTH = 0x00000130
43  m_text                (RX)  : ORIGIN = 0x08100130, LENGTH = 0x000FFED0
44  m_data                (RW)  : ORIGIN = 0x20180000, LENGTH = 0x00080000
45  m_usb_sram            (RW)  : ORIGIN = 0x40140000, LENGTH = 0x00004000
46}
47
48/* Define output sections */
49SECTIONS
50{
51  /* The startup code goes first into internal ram */
52  .interrupts :
53  {
54    . = ALIGN(4);
55    __VECTOR_TABLE = .;
56    __Vectors = .;
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    *(.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  .interrupts_ram :
151  {
152    . = ALIGN(4);
153    __VECTOR_RAM__ = .;
154    __interrupts_ram_start__ = .; /* Create a global symbol at data start */
155    *(.m_interrupts_ram)     /* This is a user defined section */
156    . += M_VECTOR_RAM_SIZE;
157    . = ALIGN(4);
158    __interrupts_ram_end__ = .; /* Define a global symbol at data end */
159  } > m_data
160
161  __VECTOR_RAM = DEFINED(__ram_vector_table__) ? __VECTOR_RAM__ : ORIGIN(m_interrupts);
162  __RAM_VECTOR_TABLE_SIZE_BYTES = DEFINED(__ram_vector_table__) ? (__interrupts_ram_end__ - __interrupts_ram_start__) : 0x0;
163
164  .data : AT(__DATA_ROM)
165  {
166    . = ALIGN(4);
167    __DATA_RAM = .;
168    __data_start__ = .;      /* create a global symbol at data start */
169    *(CodeQuickAccess)       /* CodeQuickAccess sections */
170    *(DataQuickAccess)       /* DataQuickAccess sections */
171    *(.data)                 /* .data sections */
172    *(.data*)                /* .data* sections */
173    KEEP(*(.jcr*))
174    . = ALIGN(4);
175    __data_end__ = .;        /* define a global symbol at data end */
176  } > m_data
177
178  __DATA_END = __DATA_ROM + (__data_end__ - __data_start__);
179  text_end = ORIGIN(m_text) + LENGTH(m_text);
180  ASSERT(__DATA_END <= text_end, "region m_text overflowed with text and data")
181  _image_size = __DATA_END - __VECTOR_TABLE;
182
183  /* Uninitialized data section */
184  .bss :
185  {
186    /* This is used by the startup in order to initialize the .bss section */
187    . = ALIGN(4);
188    __START_BSS = .;
189    __bss_start__ = .;
190    *(.bss)
191    *(.bss*)
192    *(COMMON)
193    . = ALIGN(4);
194    __bss_end__ = .;
195    __END_BSS = .;
196  } > m_data
197
198  .heap :
199  {
200    . = ALIGN(8);
201    __end__ = .;
202    PROVIDE(end = .);
203    __HeapBase = .;
204    . += HEAP_SIZE;
205    __HeapLimit = .;
206    __heap_limit = .; /* Add for _sbrk */
207  } > m_data
208
209  .stack :
210  {
211    . = ALIGN(8);
212    . += STACK_SIZE;
213  } > m_data
214
215  m_usb_bdt (NOLOAD) :
216  {
217    . = ALIGN(512);
218    *(m_usb_bdt)
219  } > m_usb_sram
220
221  m_usb_global (NOLOAD) :
222  {
223    *(m_usb_global)
224  } > m_usb_sram
225
226  /* Initializes stack on the end of block */
227  __StackTop   = ORIGIN(m_data) + LENGTH(m_data);
228  __StackLimit = __StackTop - STACK_SIZE;
229  PROVIDE(__stack = __StackTop);
230
231  .ARM.attributes 0 : { *(.ARM.attributes) }
232
233  ASSERT(__StackLimit >= __HeapLimit, "region m_data overflowed with stack and heap")
234}
235
236