1;/*
2; * Copyright (c) 2018-2022 ARM Limited
3; *
4; * Licensed under the Apache License, Version 2.0 (the "License");
5; * you may not use this file except in compliance with the License.
6; * You may obtain a copy of the License at
7; *
8; *     http://www.apache.org/licenses/LICENSE-2.0
9; *
10; * Unless required by applicable law or agreed to in writing, software
11; * distributed under the License is distributed on an "AS IS" BASIS,
12; * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13; * See the License for the specific language governing permissions and
14; * limitations under the License.
15; *
16; *
17; * This file is derivative of CMSIS V5.00 gcc_arm.ld
18; */
19
20/* Linker script to configure memory regions. */
21/* This file will be run trough the pre-processor. */
22
23#include "region_defs.h"
24
25MEMORY
26{
27  FLASH (rx)  : ORIGIN = NS_CODE_START, LENGTH = NS_CODE_SIZE
28  RAM   (rwx) : ORIGIN = NS_DATA_START, LENGTH = NS_DATA_SIZE
29}
30
31__heap_size__  = NS_HEAP_SIZE;
32__stack_size__ = NS_STACK_SIZE;
33
34/* Library configurations */
35GROUP(libgcc.a libc.a libm.a libnosys.a)
36
37ENTRY(Reset_Handler)
38
39SECTIONS
40{
41    .text :
42    {
43        KEEP(*(.vectors))
44        __Vectors_End = .;
45        __Vectors_Size = __Vectors_End - __Vectors;
46        __end__ = .;
47
48        *(.text*)
49
50        KEEP(*(.init))
51        KEEP(*(.fini))
52
53
54        /* .ctors */
55        *crtbegin.o(.ctors)
56        *crtbegin?.o(.ctors)
57        *(EXCLUDE_FILE(*crtend?.o *crtend.o) .ctors)
58        *(SORT(.ctors.*))
59        *(.ctors)
60
61        /* .dtors */
62         *crtbegin.o(.dtors)
63         *crtbegin?.o(.dtors)
64         *(EXCLUDE_FILE(*crtend?.o *crtend.o) .dtors)
65         *(SORT(.dtors.*))
66         *(.dtors)
67
68        *(.rodata*)
69
70        KEEP(*(.eh_frame*))
71    } > FLASH
72
73    .ARM.extab :
74    {
75        *(.ARM.extab* .gnu.linkonce.armextab.*)
76    } > FLASH
77
78    __exidx_start = .;
79    .ARM.exidx :
80    {
81        *(.ARM.exidx* .gnu.linkonce.armexidx.*)
82    } > FLASH
83    __exidx_end = .;
84
85    /* To copy multiple ROM to RAM sections,
86     * define etext2/data2_start/data2_end and
87     * define __STARTUP_COPY_MULTIPLE in startup_cmsdk_mps2_an519_ns.S */
88    .copy.table :
89    {
90        . = ALIGN(4);
91        __copy_table_start__ = .;
92        LONG (__etext)
93        LONG (__data_start__)
94        LONG ((__data_end__ - __data_start__) / 4)
95        LONG (DEFINED(__etext2) ? __etext2 : 0)
96        LONG (DEFINED(__data2_start__) ? __data2_start__ : 0)
97        LONG (DEFINED(__data2_start__) ? ((__data2_end__ - __data2_start__) / 4) : 0)
98        __copy_table_end__ = .;
99    } > FLASH
100
101    /* To clear multiple BSS sections,
102     * uncomment .zero.table section and,
103     * define __STARTUP_CLEAR_BSS_MULTIPLE in startup_cmsdk_mps2_an519_ns.S */
104    .zero.table :
105    {
106        . = ALIGN(4);
107        __zero_table_start__ = .;
108        LONG (__bss_start__)
109        LONG ((__bss_end__ - __bss_start__) / 4)
110        LONG (DEFINED(__bss2_start__) ? __bss2_start__ : 0)
111        LONG (DEFINED(__bss2_start__) ? ((__bss2_end__ - __bss2_start__) / 4) : 0)
112        __zero_table_end__ = .;
113    } > FLASH
114
115    __etext = ALIGN(4);
116
117    .data : AT (__etext)
118    {
119        __data_start__ = .;
120        *(vtable)
121        *(.data*)
122
123        . = ALIGN(4);
124        /* preinit data */
125        PROVIDE_HIDDEN (__preinit_array_start = .);
126        KEEP(*(.preinit_array))
127        PROVIDE_HIDDEN (__preinit_array_end = .);
128
129        . = ALIGN(4);
130        /* init data */
131        PROVIDE_HIDDEN (__init_array_start = .);
132        KEEP(*(SORT(.init_array.*)))
133        KEEP(*(.init_array))
134        PROVIDE_HIDDEN (__init_array_end = .);
135
136
137        . = ALIGN(4);
138        /* finit data */
139        PROVIDE_HIDDEN (__fini_array_start = .);
140        KEEP(*(SORT(.fini_array.*)))
141        KEEP(*(.fini_array))
142        PROVIDE_HIDDEN (__fini_array_end = .);
143
144        KEEP(*(.jcr*))
145        . = ALIGN(4);
146        /* All data end */
147        __data_end__ = .;
148
149    } > RAM
150
151    .bss :
152    {
153        . = ALIGN(4);
154        __bss_start__ = .;
155        *(.bss*)
156        *(COMMON)
157        . = ALIGN(4);
158        __bss_end__ = .;
159    } > RAM
160
161    bss_size = __bss_end__ - __bss_start__;
162
163    .stack : ALIGN(32)
164    {
165        . += __stack_size__;
166    } > RAM
167    __StackLimit = ADDR(.stack);
168    __StackTop = ADDR(.stack) + SIZEOF(.stack);
169
170    .heap : ALIGN(8)
171    {
172        __end__ = .;
173        PROVIDE(end = .);
174        __HeapBase = .;
175        . += __heap_size__;
176        __HeapLimit = .;
177        __heap_limit = .; /* Add for _sbrk */
178    } > RAM
179
180    PROVIDE(__stack = __StackTop);
181}
182