74 lines
1.4 KiB
C++
74 lines
1.4 KiB
C++
// Config
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#include <stddef.h>
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#include "hal/hal.h"
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#include "spinlock/spinlock.h"
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#include "kprintf.h"
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#include "bitmap/bitmap.h"
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#include "util/util.h"
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#include "pmm/pmm.h"
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#include "malloc.h"
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#include "bootinfo/bootinfo.h"
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#define USE_DL_PREFIX 1
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#define LACKS_SYS_TYPES_H 1
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#define NO_MALLOC_STATS 1
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#define LACKS_ERRNO_H 1
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#define LACKS_TIME_H 1
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#define LACKS_STDLIB_H 1
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#define LACKS_SYS_MMAN_H 1
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#define LACKS_FCNTL_H 1
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#define LACKS_UNISTD_H 1
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#define LACKS_SYS_PARAM_H 1
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#define LACKS_STRINGS_H 1
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#define LACKS_SCHED_H 1
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#define HAVE_MMAP 0
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#define ABORT \
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do { \
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ERR("dlmalloc", "Aborting..."); \
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hal_hang(); \
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} while(0)
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#define MALLOC_FAILURE_ACTION
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#define HAVE_MORECORE 1
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#define USE_LOCKS 2
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#define malloc_getpagesize 0x1000
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#define EINVAL 0xdeadbeef
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#define ENOMEM 0xb16b00b5
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#define MORECORE_CONTIGUOUS 0
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#define MLOCK_T SpinLock
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int ACQUIRE_LOCK(SpinLock *sl) {
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spinlock_acquire(sl);
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return 0;
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}
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int RELEASE_LOCK(SpinLock *sl) {
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spinlock_release(sl);
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return 0;
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}
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int INITIAL_LOCK(SpinLock *sl) {
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spinlock_release(sl);
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return 0;
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}
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static MLOCK_T malloc_global_mutex = { 0 };
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void *_last = 0;
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void *sbrk(long inc) {
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if (inc < 0) {
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return 0;
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}
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if (!inc) {
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return _last;
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}
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uint64_t blocks = _DIV_ROUNDUP(inc, BITMAP_BLOCK_SIZE);
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uint8_t *virt = VIRT(pmm_alloc(blocks));
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hal_memset(virt, 0, blocks * BITMAP_BLOCK_SIZE);
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_last = (void *)(virt + (blocks * BITMAP_BLOCK_SIZE));
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return virt;
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}
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