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🆕 基本完成了slab内存分配器

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This commit is contained in:
fslongjin
2022-02-28 16:15:44 +08:00
parent 828621dbbc
commit 36ad7a106e
7 changed files with 162 additions and 42 deletions
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49
kernel/main.c
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@ -9,6 +9,7 @@
#include "exception/trap.h"
#include "exception/irq.h"
#include "mm/mm.h"
#include "mm/slab.h"
#include "process/process.h"
#include "syscall/syscall.h"
@ -59,6 +60,51 @@ void test_mm()
}
*/
void test_slab()
{
kinfo("Testing SLAB...");
kinfo("Testing kmalloc()...");
for (int i = 1; i < 16; ++i)
{
printk_color(ORANGE, BLACK, "mem_obj_size: %ldbytes\t", kmalloc_cache_group[i].size);
printk_color(ORANGE, BLACK, "bmp(before): %#018lx\t", *kmalloc_cache_group[i].cache_pool->bmp);
ul *tmp = kmalloc(kmalloc_cache_group[i].size, 0);
if (tmp == NULL)
{
kBUG("Cannot kmalloc such a memory: %ld bytes", kmalloc_cache_group[i].size);
}
printk_color(ORANGE, BLACK, "bmp(middle): %#018lx\t", *kmalloc_cache_group[i].cache_pool->bmp);
kfree(tmp);
printk_color(ORANGE, BLACK, "bmp(after): %#018lx\n", *kmalloc_cache_group[i].cache_pool->bmp);
}
// 测试自动扩容
kmalloc(kmalloc_cache_group[15].size, 0);
kmalloc(kmalloc_cache_group[15].size, 0);
kmalloc(kmalloc_cache_group[15].size, 0);
kmalloc(kmalloc_cache_group[15].size, 0);
kmalloc(kmalloc_cache_group[15].size, 0);
kmalloc(kmalloc_cache_group[15].size, 0);
kmalloc(kmalloc_cache_group[15].size, 0);
struct slab_obj *slab_obj_ptr = kmalloc_cache_group[15].cache_pool;
int count=0;
do
{
kdebug("bmp(%d): addr=%#018lx\t value=%#018lx", count, slab_obj_ptr->bmp, *slab_obj_ptr->bmp);
slab_obj_ptr = container_of(list_next(&slab_obj_ptr->list), struct slab_obj, list);
++count;
} while (slab_obj_ptr != kmalloc_cache_group[15].cache_pool);
kinfo("SLAB test completed!");
}
// 初始化系统各模块
void system_initialize()
{
@ -87,8 +133,9 @@ void system_initialize()
cpu_init();
test_slab();
// 再初始化进程模块。顺序不能调转
process_init();
// process_init();
}
//操作系统内核从这里开始执行