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cpu/mips32r2_common: changes for heap command

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Gunar Schorcht 2019-02-04 11:58:22 +01:00 committed by Schorcht
parent 4b009649c6
commit a63c0dda9c
2 changed files with 35 additions and 0 deletions
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1
cpu/mips32r2_common/Makefile.include
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@ -11,6 +11,7 @@ ifeq ($(USE_UHI_SYSCALLS),1)
#Use UHI to handle syscalls
export LINKFLAGS += -luhi
export USEMODULE += newlib_syscalls_mips_uhi
CFLAGS += -DHAVE_HEAP_STATS
else
#Use RIOT to handle syscalls (default)
export USEMODULE += newlib_syscalls_default

34
cpu/mips32r2_common/cpu.c
View File

@ -7,11 +7,13 @@
* directory for more details.
*/
#include <mips/hal.h>
#include <mips/m32c0.h>
#include <mips/regdef.h>
#include <mips/asm.h>
#include <string.h>
#include <assert.h>
#include <malloc.h>
#include "periph/uart.h"
#include "periph/timer.h"
@ -79,3 +81,35 @@ void cpu_init(void)
/* trigger static peripheral initialization */
periph_init();
}
#ifdef MODULE_NEWLIB_SYSCALLS_DEFAULT
void heap_stats(void)
{
puts("heap statistics are not supported for newlib_syscalls_default");
}
#else
extern char _end[]; /* defined in linker script */
void heap_stats(void)
{
void *ram_base;
void *ram_extent;
unsigned long heap_size;
_get_ram_range (&ram_base, &ram_extent);
/* If the _end symbol is within the RAM then use _end. */
if ((void*)_end > ram_base && (void*)_end < ram_extent) {
heap_size = ram_extent - (void*)_end;
}
else {
heap_size = ram_extent - ram_base;
}
struct mallinfo minfo = mallinfo();
printf("heap: %lu (used %lu, free %lu) [bytes]\n",
heap_size, minfo.uordblks, heap_size - minfo.uordblks);
}
#endif