21fa43387e
This sample provides an example for using the code relocation feature. This example will place text,data,bss from 3 files to various parts in the SRAM. For this a custom linker file is used which is derived from include/arch/arm/cortex_m/scripts/linker.ld. Signed-off-by: Varun Sharma <varun.sharma@intel.com> Signed-off-by: Adithya Baglody <adithya.nagaraj.baglody@intel.com>
45 lines
1.2 KiB
C
45 lines
1.2 KiB
C
/*
|
|
* Copyright (c) 2012-2014 Wind River Systems, Inc.
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*/
|
|
|
|
#include <zephyr.h>
|
|
#include <misc/printk.h>
|
|
|
|
u32_t var_sram2_data = 10U;
|
|
u32_t var_sram2_bss;
|
|
K_SEM_DEFINE(test, 0, 1);
|
|
const u32_t var_sram2_rodata = 100U;
|
|
|
|
__in_section(custom_section, static, var) u32_t var_custom_data = 1U;
|
|
|
|
extern void function_in_sram(s32_t value);
|
|
void function_in_custom_section(void);
|
|
void function_in_sram2(void)
|
|
{
|
|
/* Print values from sram2 */
|
|
printk("Address of function_in_sram2 %p\n", &function_in_sram2);
|
|
printk("Address of var_sram2_data %p\n", &var_sram2_data);
|
|
printk("Address of k_sem_give %p\n", &k_sem_give);
|
|
printk("Address of var_sram2_rodata %p\n", &var_sram2_rodata);
|
|
printk("Address of var_sram2_bss %p\n\n", &var_sram2_bss);
|
|
|
|
/* Print values from sram */
|
|
function_in_sram(var_sram2_data);
|
|
|
|
/* Print values which were placed using attributes */
|
|
printk("Address of custom_section, func placed using attributes %p\n",
|
|
&function_in_custom_section);
|
|
printk("Address of custom_section data placed using attributes %p\n\n",
|
|
&var_custom_data);
|
|
|
|
k_sem_give(&test);
|
|
}
|
|
|
|
__in_section(custom_section, static, fun) void function_in_custom_section(void)
|
|
{
|
|
return;
|
|
|
|
}
|