1/*
2** ###################################################################
3**     Processors:          LPC5536JBD100
4**                          LPC5536JBD64
5**                          LPC5536JHI48
6**
7**     Compiler:            GNU C Compiler
8**     Reference manual:    LPC55S3x Reference Manual Rev. DraftG, 07/2021
9**     Version:             rev. 1.1, 2021-08-04
10**     Build:               b230601
11**
12**     Abstract:
13**         Linker file for the GNU C Compiler
14**
15**     Copyright 2016 Freescale Semiconductor, Inc.
16**     Copyright 2016-2023 NXP
17**     SPDX-License-Identifier: BSD-3-Clause
18**
19**     http:                 www.nxp.com
20**     mail:                 support@nxp.com
21**
22** ###################################################################
23*/
24
25
26
27/* Entry Point */
28ENTRY(Reset_Handler)
29
30HEAP_SIZE  = DEFINED(__heap_size__)  ? __heap_size__  : 0x0400;
31STACK_SIZE = DEFINED(__stack_size__) ? __stack_size__ : 0x0800;
32
33/* __pkc__ : SRAM A(16K) reserved for; pkc __power_down__ : The first 0x604 bytes reserved to CPU retention for power down mode */
34RETENTION_RAMSIZE = DEFINED(__pkc__) ? 0x00004000 : (DEFINED(__power_down__) ? 0x00000604 : 0x00000000);
35POWERQUAD_RAMSIZE = DEFINED(__powerquad__)  ? 0x00004000 : 0x00000000;  /* SRAM E(16K) reserved for powerquad */
36
37TEXT_START = DEFINED(__qspi_xip__)  ? 0x08001000 : 0x00000000; /* flexspi boot image start with 0x08000000 */
38TEXT_SIZE = DEFINED(__qspi_xip__)  ? 0x07FFF000 : 0x0003D800; /* flexspi boot image offset at 0x08001000 */
39
40/* Specify the memory areas */
41MEMORY
42{
43  m_interrupts          (RX)  : ORIGIN = TEXT_START, LENGTH = 0x00000400
44  m_text                (RX)  : ORIGIN = TEXT_START + 0x00000400, LENGTH = TEXT_SIZE - 0x00000400
45  m_data                (RW)  : ORIGIN = 0x20000000 + RETENTION_RAMSIZE, LENGTH = 0x0001C000 - RETENTION_RAMSIZE - POWERQUAD_RAMSIZE
46  m_sramx               (RW)  : ORIGIN = 0x04000000, LENGTH = 0x00004000
47}
48
49/* Define output sections */
50SECTIONS
51{
52  /* The startup code goes first into internal flash */
53  .interrupts :
54  {
55    . = ALIGN(4);
56    KEEP(*(.isr_vector))     /* Startup code */
57    . = ALIGN(4);
58  } > m_interrupts
59
60  /* The program code and other data goes into internal flash */
61  .text :
62  {
63    . = ALIGN(4);
64    *(.text)                 /* .text sections (code) */
65    *(.text*)                /* .text* sections (code) */
66    *(.rodata)               /* .rodata sections (constants, strings, etc.) */
67    *(.rodata*)              /* .rodata* sections (constants, strings, etc.) */
68    *(.glue_7)               /* glue arm to thumb code */
69    *(.glue_7t)              /* glue thumb to arm code */
70    *(.eh_frame)
71    KEEP (*(.init))
72    KEEP (*(.fini))
73    . = ALIGN(4);
74  } > m_text
75
76  .ARM.extab :
77  {
78    *(.ARM.extab* .gnu.linkonce.armextab.*)
79  } > m_text
80
81  .ARM :
82  {
83    __exidx_start = .;
84    *(.ARM.exidx*)
85    __exidx_end = .;
86  } > m_text
87
88 .ctors :
89  {
90    __CTOR_LIST__ = .;
91    /* gcc uses crtbegin.o to find the start of
92       the constructors, so we make sure it is
93       first.  Because this is a wildcard, it
94       doesn't matter if the user does not
95       actually link against crtbegin.o; the
96       linker won't look for a file to match a
97       wildcard.  The wildcard also means that it
98       doesn't matter which directory crtbegin.o
99       is in.  */
100    KEEP (*crtbegin.o(.ctors))
101    KEEP (*crtbegin?.o(.ctors))
102    /* We don't want to include the .ctor section from
103       from the crtend.o file until after the sorted ctors.
104       The .ctor section from the crtend file contains the
105       end of ctors marker and it must be last */
106    KEEP (*(EXCLUDE_FILE(*crtend?.o *crtend.o) .ctors))
107    KEEP (*(SORT(.ctors.*)))
108    KEEP (*(.ctors))
109    __CTOR_END__ = .;
110  } > m_text
111
112  .dtors :
113  {
114    __DTOR_LIST__ = .;
115    KEEP (*crtbegin.o(.dtors))
116    KEEP (*crtbegin?.o(.dtors))
117    KEEP (*(EXCLUDE_FILE(*crtend?.o *crtend.o) .dtors))
118    KEEP (*(SORT(.dtors.*)))
119    KEEP (*(.dtors))
120    __DTOR_END__ = .;
121  } > m_text
122
123  .preinit_array :
124  {
125    PROVIDE_HIDDEN (__preinit_array_start = .);
126    KEEP (*(.preinit_array*))
127    PROVIDE_HIDDEN (__preinit_array_end = .);
128  } > m_text
129
130  .init_array :
131  {
132    PROVIDE_HIDDEN (__init_array_start = .);
133    KEEP (*(SORT(.init_array.*)))
134    KEEP (*(.init_array*))
135    PROVIDE_HIDDEN (__init_array_end = .);
136  } > m_text
137
138  .fini_array :
139  {
140    PROVIDE_HIDDEN (__fini_array_start = .);
141    KEEP (*(SORT(.fini_array.*)))
142    KEEP (*(.fini_array*))
143    PROVIDE_HIDDEN (__fini_array_end = .);
144  } > m_text
145
146  __etext = .;    /* define a global symbol at end of code */
147  __DATA_ROM = .; /* Symbol is used by startup for data initialization */
148
149  .data : AT(__DATA_ROM)
150  {
151    . = ALIGN(4);
152    __DATA_RAM = .;
153    __data_start__ = .;      /* create a global symbol at data start */
154    *(.ramfunc*)             /* for functions in ram */
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  __DATA_END = __DATA_ROM + (__data_end__ - __data_start__);
163  text_end = ORIGIN(m_text) + LENGTH(m_text);
164  ASSERT(__DATA_END <= text_end, "region m_text overflowed with text and data")
165
166  /* Uninitialized data section */
167  .bss :
168  {
169    /* This is used by the startup in order to initialize the .bss section */
170    . = ALIGN(4);
171    __START_BSS = .;
172    __bss_start__ = .;
173    *(.bss)
174    *(.bss*)
175    *(COMMON)
176    . = ALIGN(4);
177    __bss_end__ = .;
178    __END_BSS = .;
179  } > m_data
180
181  .heap :
182  {
183    . = ALIGN(8);
184    __end__ = .;
185    PROVIDE(end = .);
186    __HeapBase = .;
187    . += HEAP_SIZE;
188    __HeapLimit = .;
189    __heap_limit = .; /* Add for _sbrk */
190  } > m_data
191
192  .stack :
193  {
194    . = ALIGN(8);
195    . += STACK_SIZE;
196  } > m_data
197
198  /* Initializes stack on the end of block */
199  __StackTop   = ORIGIN(m_data) + LENGTH(m_data);
200  __StackLimit = __StackTop - STACK_SIZE;
201  PROVIDE(__stack = __StackTop);
202
203  .ARM.attributes 0 : { *(.ARM.attributes) }
204
205  ASSERT(__StackLimit >= __HeapLimit, "region m_data overflowed with stack and heap")
206}
207
208