0b90fd5adf
As both C and C++ standards require applications running under an OS to
return 'int', adapt that for Zephyr to align with those standard. This also
eliminates errors when building with clang when not using -ffreestanding,
and reduces the need for compiler flags to silence warnings for both clang
and gcc.
Most of these changes were automated using coccinelle with the following
script:
@@
@@
- void
+ int
main(...) {
...
- return;
+ return 0;
...
}
Approximately 40 files had to be edited by hand as coccinelle was unable to
fix them.
Signed-off-by: Keith Packard <keithp@keithp.com>
47 lines
869 B
C
47 lines
869 B
C
/*
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* Copyright (c) 2022 Jeppe Odgaard
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <zephyr/kernel.h>
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#include <zephyr/sys/sys_heap.h>
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#define HEAP_SIZE 256
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static char heap_mem[HEAP_SIZE];
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static struct sys_heap heap;
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void print_sys_memory_stats(void);
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int main(void)
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{
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void *p;
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printk("System heap sample\n\n");
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sys_heap_init(&heap, heap_mem, HEAP_SIZE);
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print_sys_memory_stats();
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p = sys_heap_alloc(&heap, 150);
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print_sys_memory_stats();
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p = sys_heap_realloc(&heap, p, 100);
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print_sys_memory_stats();
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sys_heap_free(&heap, p);
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print_sys_memory_stats();
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return 0;
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}
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void print_sys_memory_stats(void)
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{
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struct sys_memory_stats stats;
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sys_heap_runtime_stats_get(&heap, &stats);
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printk("allocated %zu, free %zu, max allocated %zu, heap size %u\n",
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stats.allocated_bytes, stats.free_bytes,
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stats.max_allocated_bytes, HEAP_SIZE);
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}
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