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This commit is contained in:
fslongjin
2022-06-02 14:20:53 +08:00
parent b97aaee746
commit d64ddfa0b6
12 changed files with 243 additions and 299 deletions
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366
kernel/process/process.c
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@ -15,6 +15,9 @@
spinlock_t process_global_pid_write_lock; // 增加pid的写锁
long process_global_pid = 1; // 系统中最大的pid
uint64_t pid_one_map_offset = 0x0000020000000000;
int pid_one_map_count = 0;
extern void system_call(void);
extern void kernel_thread_func(void);
@ -125,206 +128,6 @@ void __switch_to(struct process_control_block *prev, struct process_control_bloc
// wrmsr(0x175, next->thread->rbp);
}
/**
* @brief 这是一个用户态的程序
*
*/
void user_level_function()
{
// kinfo("Program (user_level_function) is runing...");
// kinfo("Try to enter syscall id 15...");
// enter_syscall(15, 0, 0, 0, 0, 0, 0, 0, 0);
// enter_syscall(SYS_PRINTF, (ul) "test_sys_printf\n", 0, 0, 0, 0, 0, 0, 0);
// while(1);
long ret = 0;
// printk_color(RED,BLACK,"user_level_function task is running\n");
/*
// 测试sys put string
char string[] = "User level process.\n";
long err_code = 1;
ul addr = (ul)string;
__asm__ __volatile__(
"movq %2, %%r8 \n\t"
"int $0x80 \n\t"
: "=a"(err_code)
: "a"(SYS_PUT_STRING), "m"(addr)
: "memory", "r8");
*/
while (1)
{
// 测试sys_open
char string[] = "333.txt";
long err_code = 1;
int zero = 0;
uint64_t addr = (ul)string;
__asm__ __volatile__(
"movq %2, %%r8 \n\t"
"movq %3, %%r9 \n\t"
"movq %4, %%r10 \n\t"
"movq %5, %%r11 \n\t"
"movq %6, %%r12 \n\t"
"movq %7, %%r13 \n\t"
"movq %8, %%r14 \n\t"
"movq %9, %%r15 \n\t"
"int $0x80 \n\t"
: "=a"(err_code)
: "a"(SYS_OPEN), "m"(addr), "m"(zero), "m"(zero), "m"(zero), "m"(zero), "m"(zero), "m"(zero), "m"(zero)
: "memory", "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15", "rcx", "rdx");
int fd_num = err_code;
int count = 128;
// while (count)
//{
uchar buf[128] = {0};
// Test sys_read
addr = (uint64_t)&buf;
__asm__ __volatile__(
"movq %2, %%r8 \n\t"
"movq %3, %%r9 \n\t"
"movq %4, %%r10 \n\t"
"movq %5, %%r11 \n\t"
"movq %6, %%r12 \n\t"
"movq %7, %%r13 \n\t"
"movq %8, %%r14 \n\t"
"movq %9, %%r15 \n\t"
"int $0x80 \n\t"
: "=a"(err_code)
: "a"(SYS_READ), "m"(fd_num), "m"(addr), "m"(count), "m"(zero), "m"(zero), "m"(zero), "m"(zero), "m"(zero)
: "memory", "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15", "rcx", "rdx");
count = err_code;
// 将读取到的数据打印出来
addr = (ul)buf;
__asm__ __volatile__(
"movq %2, %%r8 \n\t"
"int $0x80 \n\t"
: "=a"(err_code)
: "a"(SYS_PUT_STRING), "m"(addr)
: "memory", "r8");
// SYS_WRITE
char test1[] = "GGGGHHHHHHHHh112343";
addr = (uint64_t)&test1;
count = 19;
__asm__ __volatile__(
"movq %2, %%r8 \n\t"
"movq %3, %%r9 \n\t"
"movq %4, %%r10 \n\t"
"movq %5, %%r11 \n\t"
"movq %6, %%r12 \n\t"
"movq %7, %%r13 \n\t"
"movq %8, %%r14 \n\t"
"movq %9, %%r15 \n\t"
"int $0x80 \n\t"
: "=a"(err_code)
: "a"(SYS_WRITE), "m"(fd_num), "m"(addr), "m"(count), "m"(zero), "m"(zero), "m"(zero), "m"(zero), "m"(zero)
: "memory", "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15", "rcx", "rdx");
addr = 1;
count = SEEK_SET;
fd_num = 0;
// Test lseek
__asm__ __volatile__(
"movq %2, %%r8 \n\t"
"movq %3, %%r9 \n\t"
"movq %4, %%r10 \n\t"
"movq %5, %%r11 \n\t"
"movq %6, %%r12 \n\t"
"movq %7, %%r13 \n\t"
"movq %8, %%r14 \n\t"
"movq %9, %%r15 \n\t"
"int $0x80 \n\t"
: "=a"(err_code)
: "a"(SYS_LSEEK), "m"(fd_num), "m"(addr), "m"(count), "m"(zero), "m"(zero), "m"(zero), "m"(zero), "m"(zero)
: "memory", "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15", "rcx", "rdx");
// SYS_WRITE
char test2[] = "K123456789K";
addr = (uint64_t)&test2;
count = 11;
__asm__ __volatile__(
"movq %2, %%r8 \n\t"
"movq %3, %%r9 \n\t"
"movq %4, %%r10 \n\t"
"movq %5, %%r11 \n\t"
"movq %6, %%r12 \n\t"
"movq %7, %%r13 \n\t"
"movq %8, %%r14 \n\t"
"movq %9, %%r15 \n\t"
"int $0x80 \n\t"
: "=a"(err_code)
: "a"(SYS_WRITE), "m"(fd_num), "m"(addr), "m"(count), "m"(zero), "m"(zero), "m"(zero), "m"(zero), "m"(zero)
: "memory", "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15", "rcx", "rdx");
// Test sys_close
__asm__ __volatile__(
"movq %2, %%r8 \n\t"
"movq %3, %%r9 \n\t"
"movq %4, %%r10 \n\t"
"movq %5, %%r11 \n\t"
"movq %6, %%r12 \n\t"
"movq %7, %%r13 \n\t"
"movq %8, %%r14 \n\t"
"movq %9, %%r15 \n\t"
"int $0x80 \n\t"
: "=a"(err_code)
: "a"(SYS_CLOSE), "m"(fd_num), "m"(zero), "m"(zero), "m"(zero), "m"(zero), "m"(zero), "m"(zero), "m"(zero)
: "memory", "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15", "rcx", "rdx");
addr = (ul)string;
__asm__ __volatile__(
"movq %2, %%r8 \n\t"
"movq %3, %%r9 \n\t"
"movq %4, %%r10 \n\t"
"movq %5, %%r11 \n\t"
"movq %6, %%r12 \n\t"
"movq %7, %%r13 \n\t"
"movq %8, %%r14 \n\t"
"movq %9, %%r15 \n\t"
"int $0x80 \n\t"
: "=a"(err_code)
: "a"(SYS_OPEN), "m"(addr), "m"(zero), "m"(zero), "m"(zero), "m"(zero), "m"(zero), "m"(zero), "m"(zero)
: "memory", "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15", "rcx", "rdx");
fd_num = err_code;
count = 128;
// Test sys_read
addr = (uint64_t)&buf;
__asm__ __volatile__(
"movq %2, %%r8 \n\t"
"movq %3, %%r9 \n\t"
"movq %4, %%r10 \n\t"
"movq %5, %%r11 \n\t"
"movq %6, %%r12 \n\t"
"movq %7, %%r13 \n\t"
"movq %8, %%r14 \n\t"
"movq %9, %%r15 \n\t"
"int $0x80 \n\t"
: "=a"(err_code)
: "a"(SYS_READ), "m"(fd_num), "m"(addr), "m"(count), "m"(zero), "m"(zero), "m"(zero), "m"(zero), "m"(zero)
: "memory", "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15", "rcx", "rdx");
count = err_code;
// 将读取到的数据打印出来
addr = (ul)buf;
__asm__ __volatile__(
"movq %2, %%r8 \n\t"
"int $0x80 \n\t"
: "=a"(err_code)
: "a"(SYS_PUT_STRING), "m"(addr)
: "memory", "r8");
// Test Sys
//}
while (1)
pause();
}
while (1)
pause();
}
/**
* @brief 打开要执行的程序文件
*
@ -443,13 +246,16 @@ static int process_load_elf_file(struct pt_regs *regs, char *path)
pos = phdr->p_offset;
uint64_t virt_base = phdr->p_vaddr;
kdebug("virt_base = %#018lx, &memory_management_struct=%#018lx", virt_base, &memory_management_struct);
while (remain_mem_size > 0)
{
// todo: 改用slab分配4K大小内存块并映射到4K页
if (!mm_check_mapped((uint64_t)current_pcb->mm->pgd, virt_base)) // 未映射，则新增物理页
{
mm_map_proc_page_table((uint64_t)current_pcb->mm->pgd, true, virt_base, alloc_pages(ZONE_NORMAL, 1, PAGE_PGT_MAPPED)->addr_phys, PAGE_2M_SIZE, PAGE_USER_PAGE, true);
mm_map_proc_page_table((uint64_t)current_pcb->mm->pgd, true, virt_base, alloc_pages(ZONE_NORMAL, 10, PAGE_PGT_MAPPED)->addr_phys, PAGE_2M_SIZE, PAGE_USER_PAGE, true, true);
memset((void *)virt_base, 0, PAGE_2M_SIZE);
}
pos = filp->file_ops->lseek(filp, pos, SEEK_SET);
@ -472,10 +278,35 @@ static int process_load_elf_file(struct pt_regs *regs, char *path)
// 分配2MB的栈内存空间
regs->rsp = current_pcb->mm->stack_start;
regs->rbp = current_pcb->mm->stack_start;
mm_map_proc_page_table((uint64_t)current_pcb->mm->pgd, true, current_pcb->mm->stack_start - PAGE_2M_SIZE, alloc_pages(ZONE_NORMAL, 1, PAGE_PGT_MAPPED)->addr_phys, PAGE_2M_SIZE, PAGE_USER_PAGE, true);
uint64_t pa = alloc_pages(ZONE_NORMAL, 1, PAGE_PGT_MAPPED)->addr_phys;
// pa+= PAGE_2M_SIZE;
kdebug("pa1=%#018lx", pa);
// mm_map_proc_page_table((uint64_t)current_pcb->mm->pgd, true, current_pcb->mm->stack_start - PAGE_2M_SIZE, alloc_pages(ZONE_NORMAL, 1, PAGE_PGT_MAPPED)->addr_phys, PAGE_2M_SIZE, PAGE_USER_PAGE, true, false);
// mm_map_proc_page_table((uint64_t)current_pcb->mm->pgd, true, current_pcb->mm->stack_start - PAGE_2M_SIZE, pa, PAGE_2M_SIZE, PAGE_USER_PAGE, true, true);
// pa = alloc_pages(ZONE_NORMAL, 1, PAGE_PGT_MAPPED)->addr_phys;
// kdebug("pa2=%#018lx", pa);
// // mm_map_proc_page_table((uint64_t)current_pcb->mm->pgd, true, current_pcb->mm->stack_start - PAGE_2M_SIZE, pa, PAGE_2M_SIZE, PAGE_USER_PAGE, true, true);
// pa = alloc_pages(ZONE_NORMAL, 1, PAGE_PGT_MAPPED)->addr_phys;
// kdebug("pa3=%#018lx", pa);
mm_map_proc_page_table((uint64_t)current_pcb->mm->pgd, true, current_pcb->mm->stack_start - PAGE_2M_SIZE, pa, PAGE_2M_SIZE, PAGE_USER_PAGE, true, true);
// mm_map_proc_page_table((uint64_t)current_pcb->mm->pgd, true, current_pcb->mm->stack_start - PAGE_2M_SIZE, alloc_pages(ZONE_NORMAL, 1, PAGE_PGT_MAPPED)->addr_phys, 1 * PAGE_2M_SIZE, PAGE_USER_PAGE, true);
// 清空栈空间
memset((void *)(current_pcb->mm->stack_start - PAGE_2M_SIZE), 0, PAGE_2M_SIZE);
// mm_map_proc_page_table((uint64_t)current_pcb->mm->pgd, true, current_pcb->mm->stack_start - PAGE_2M_SIZE * 2, alloc_pages(ZONE_NORMAL, 2, PAGE_PGT_MAPPED)->addr_phys, 2 * PAGE_2M_SIZE, PAGE_USER_PAGE, true);
// // 清空栈空间
// memset((void *)(current_pcb->mm->stack_start - 2 * PAGE_2M_SIZE), 0, 2 * PAGE_2M_SIZE);
// if (current_pcb->pid == 1 && pid_one_map_count < 2)
// {
// mm_map_proc_page_table((uint64_t)current_pcb->mm->pgd, true, pid_one_map_offset, alloc_pages(ZONE_NORMAL, 1, PAGE_PGT_MAPPED)->addr_phys, PAGE_2M_SIZE, PAGE_USER_PAGE, true);
// memset(pid_one_map_offset, 0, PAGE_2M_SIZE);
// pid_one_map_count++;
// pid_one_map_offset += PAGE_2M_SIZE;
// }
load_elf_failed:;
if (buf != NULL)
kfree(buf);
@ -516,8 +347,8 @@ ul do_execve(struct pt_regs *regs, char *path, char *argv[], char *envp[])
}
// 设置用户栈和用户堆的基地址
unsigned long stack_start_addr = 0x6fffffc00000;
const uint64_t brk_start_addr = 0x6fffffc00000;
unsigned long stack_start_addr = 0x6ffff0a00000UL;
const uint64_t brk_start_addr = 0x700000000000UL;
process_switch_mm(current_pcb);
@ -655,7 +486,7 @@ ul process_do_exit(ul code)
// todo: 可否在这里释放内存结构体？（在判断共享页引用问题之后）
pcb->state = PROC_ZOMBIE;
pcb->exit_code = pcb;
pcb->exit_code = code;
sti();
process_exit_notify();
@ -841,6 +672,10 @@ unsigned long do_fork(struct pt_regs *regs, unsigned long clone_flags, unsigned
retval = tsk->pid;
kdebug("fork done: tsk->pid=%d", tsk->pid);
// kdebug("current_pcb->mm->brk_end=%#018lx", current_pcb->mm->brk_end);
// mm_map_proc_page_table((uint64_t)current_pcb->mm->pgd, true, 0x0000500000000000, alloc_pages(ZONE_NORMAL, 1, PAGE_PGT_MAPPED)->addr_phys, PAGE_2M_SIZE, PAGE_USER_PAGE, true);
// 唤醒进程
process_wakeup(tsk);
@ -1003,52 +838,121 @@ uint64_t process_copy_mm(uint64_t clone_flags, struct process_control_block *pcb
// 当前页表项为空
if ((*(uint64_t *)(current_pgd + i)) == 0)
continue;
kdebug("user page [%d]", i);
// 分配新的二级页表
pdpt_t *new_pdpt = (pdpt_t *)kmalloc(PAGE_4K_SIZE, 0);
uint64_t *new_pdpt = (uint64_t *)kmalloc(PAGE_4K_SIZE, 0);
memset(new_pdpt, 0, PAGE_4K_SIZE);
// 在新的一级页表中设置新的二级页表表项
set_pml4t(new_pml4t + i, mk_pml4t(virt_2_phys(new_pdpt), (*(current_pgd + i)) & 0xfffUL));
pdpt_t *current_pdpt = (pdpt_t *)phys_2_virt(*(uint64_t *)(current_pgd + i) & (~0xfffUL));
kdebug("i=%d, current pdpt=%#018lx \t (current_pgd + i)->pml4t=%#018lx", i, current_pdpt, *(uint64_t *)(current_pgd + i));
// 设置二级页表
uint64_t *current_pdpt = (uint64_t *)phys_2_virt((*(uint64_t *)(current_pgd + i)) & (~0xfffUL));
kdebug("current_pdpt=%#018lx, current_pid=%d", current_pdpt, current_pcb->pid);
for (int j = 0; j < 512; ++j)
{
if (*(uint64_t *)(current_pdpt + j) == 0)
if (*(current_pdpt + j) == 0)
continue;
kdebug("j=%d *(uint64_t *)(current_pdpt + j)=%#018lx", j, *(uint64_t *)(current_pdpt + j));
// 分配新的三级页表
pdt_t *new_pdt = (pdt_t *)kmalloc(PAGE_4K_SIZE, 0);
uint64_t *new_pdt = (uint64_t *)kmalloc(PAGE_4K_SIZE, 0);
memset(new_pdt, 0, PAGE_4K_SIZE);
// 在二级页表中填写新的三级页表
// 在新的二级页表中设置三级页表的表项
set_pdpt((uint64_t *)(new_pdpt + j), mk_pdpt(virt_2_phys(new_pdt), (*(uint64_t *)(current_pdpt + j)) & 0xfffUL));
set_pdpt((uint64_t *)(new_pdpt + j), mk_pdpt(virt_2_phys(new_pdt), (*(current_pdpt + j)) & 0xfffUL));
pdt_t *current_pdt = (pdt_t *)phys_2_virt((*(uint64_t *)(current_pdpt + j)) & (~0xfffUL));
// 拷贝内存页
uint64_t *current_pdt = (uint64_t *)phys_2_virt((*(current_pdpt + j)) & (~0xfffUL));
kdebug("current_pdt=%#018lx", current_pdt);
// 循环拷贝三级页表
for (int k = 0; k < 512; ++k)
{
if ((current_pdt + k)->pdt == 0)
continue;
kdebug("k=%d, (current_pdt + k)->pdt=%#018lx", k, (current_pdt + k)->pdt);
// 获取一个新页
struct Page *pg = alloc_pages(ZONE_NORMAL, 1, PAGE_PGT_MAPPED);
set_pdt((uint64_t *)(new_pdt + k), mk_pdt(pg->addr_phys, (current_pdt + k)->pdt & 0x1ffUL));
kdebug("k=%d, cpy dest=%#018lx, src=%#018lx", k, phys_2_virt(pg->addr_phys), phys_2_virt((current_pdt + k)->pdt & (~0x1ffUL)));
// 拷贝数据
memcpy(phys_2_virt(pg->addr_phys), phys_2_virt((current_pdt + k)->pdt & (~0x1ffUL)), PAGE_2M_SIZE);
// 获取新的物理页
if (*(current_pdt + k) == 0)
continue;
// 跳过栈空间
if (i == 223 && j == 511 && k == 388)
continue;
// if (i > 10)
// continue;
uint64_t pa = alloc_pages(ZONE_NORMAL, 1, PAGE_PGT_MAPPED)->addr_phys;
kdebug("before memset phys_2_virt(pa)=%#018lx", phys_2_virt(pa));
memset((void*)phys_2_virt(pa), 0, PAGE_2M_SIZE);
kdebug("[i=%d][j=%d][k=%d] pg->addr_phys=%#018lx", i, j, k, pa);
// 计算当前虚拟地址
uint64_t current_vaddr = 0;
current_vaddr = ((1UL * i) << PAGE_GDT_SHIFT) | ((1UL * j) << PAGE_1G_SHIFT) | ((1UL * k) << PAGE_2M_SHIFT);
kdebug("current_vaddr = %#018lx, pa=%#018lx", current_vaddr, pa);
mm_map_proc_page_table((uint64_t)pcb->mm->pgd, true, current_vaddr, pa, PAGE_2M_SIZE, PAGE_USER_PAGE, true, false);
kdebug("before memcpy");
memcpy((void*)phys_2_virt(pa), (void *)current_vaddr, PAGE_2M_SIZE);
kdebug("current_pcb->mm->stack_start=%#018lx", current_pcb->mm->stack_start);
// kdebug("*(current_pdt+k)=%#018lx", *(current_pdt + k));
// set_pdt((new_pdt + k), mk_pdt(pa, PAGE_USER_PAGE));
// // set_pdt((new_pdt + k), mk_pdt(pg->addr_phys, (*(current_pdt + k)) & 0xfffUL));
// // memcpy((void *)phys_2_virt(pg->addr_phys), (void *)phys_2_virt((*(current_pdt + k)) & (~0xfffUL)), PAGE_2M_SIZE);
// kdebug("phys_2_virt((*(current_pdt + k)) & (~0x1ffUL))=%#018lx",phys_2_virt((*(current_pdt + k)) & (~0x1ffUL)));
// memcpy((void *)phys_2_virt(pa), (void *)phys_2_virt((*(current_pdt + k)) & (~0x1ffUL)), PAGE_2M_SIZE);
// set_pdt((new_pdt + k), mk_pdt(pg->addr_phys, PAGE_USER_PAGE));
// *(new_pdt + k) = (pg->addr_phys | (*(current_pdt + k)) & (0xfffUL));
}
}
// kdebug("current_pcb->mm->stack_start - PAGE_2M_SIZE * 2=%#018lx",current_pcb->mm->stack_start - PAGE_2M_SIZE * 2);
// kdebug("i=%d, current pdpt=%#018lx \t (current_pgd + i)->pml4t=%#018lx", i, current_pdpt, *(uint64_t *)(current_pgd + i));
// // 设置二级页表
// for (int j = 0; j < 512; ++j)
// {
// if (*(uint64_t *)(current_pdpt + j) == 0)
// continue;
// kdebug("j=%d *(uint64_t *)(current_pdpt + j)=%#018lx", j, *(uint64_t *)(current_pdpt + j));
// // 分配新的三级页表
// uint64_t *new_pdt = (uint64_t *)kmalloc(PAGE_4K_SIZE, 0);
// memset(new_pdt, 0, PAGE_4K_SIZE);
// // 在新的二级页表中设置三级页表的表项
// set_pdpt((uint64_t *)(new_pdpt + j), mk_pdpt(virt_2_phys(new_pdt), (*(uint64_t *)(current_pdpt + j)) & 0xfffUL));
// uint64_t *current_pdt = (uint64_t *)phys_2_virt((*(uint64_t *)(current_pdpt + j)) & (~0xfffUL));
// // 拷贝内存页
// for (int k = 0; k < 512; ++k)
// {
// if (*(current_pdt + k) == 0)
// continue;
// kdebug("k=%d, *(current_pdt + k)=%#018lx", k, *(current_pdt + k));
// // 获取一个新页
// struct Page *pg = alloc_pages(ZONE_NORMAL, 1, PAGE_PGT_MAPPED);
// set_pdt((uint64_t *)(new_pdt + k), mk_pdt(pg->addr_phys, *(current_pdt + k) & 0x1ffUL));
// kdebug("k=%d, cpy dest=%#018lx, src=%#018lx", k, phys_2_virt(pg->addr_phys), phys_2_virt((*(current_pdt + k)) & (~0x1ffUL)));
// // 拷贝数据
// memcpy(phys_2_virt(pg->addr_phys), phys_2_virt((*(current_pdt + k)) & (~0x1ffUL)), PAGE_2M_SIZE);
// }
// }
}
kdebug("mapppping stack mem!!!, pid=%d", pcb->pid);
uint64_t pha = alloc_pages(ZONE_NORMAL, 1, PAGE_PGT_MAPPED)->addr_phys;
mm_map_proc_page_table((uint64_t)pcb->mm->pgd, true, current_pcb->mm->stack_start - PAGE_2M_SIZE * 1, pha, 1 * PAGE_2M_SIZE, PAGE_USER_PAGE, true, false);
// mm_map_proc_page_table((uint64_t)pcb->mm->pgd, true, current_pcb->mm->stack_start - PAGE_2M_SIZE * 1, pha, 1 * PAGE_2M_SIZE, PAGE_USER_PAGE, true, false);
// 清空栈空间
memset(phys_2_virt(pha), 0, PAGE_2M_SIZE);
kdebug("(current_pcb->mm->stack_start - PAGE_2M_SIZE)=%#018lx", (current_pcb->mm->stack_start - PAGE_2M_SIZE));
memcpy(phys_2_virt(pha), (void *)(current_pcb->mm->stack_start - PAGE_2M_SIZE), PAGE_2M_SIZE);
kdebug("mapppped stack mem!!!");
return retval;
}
@ -1148,7 +1052,7 @@ uint64_t process_copy_thread(uint64_t clone_flags, struct process_control_block
thd->rip = (uint64_t)kernel_thread_func;
else
thd->rip = (uint64_t)ret_from_system_call;
kdebug("new proc's ret addr = %#018lx\tthd->rip=%#018lx stack_start=%#018lx child_regs->rsp = %#018lx, new_rip=%#018lx)", child_regs->rbx, thd->rip,stack_start,child_regs->rsp, child_regs->rip);
kdebug("new proc's ret addr = %#018lx\tthd->rip=%#018lx stack_start=%#018lx child_regs->rsp = %#018lx, new_rip=%#018lx)", child_regs->rbx, thd->rip, stack_start, child_regs->rsp, child_regs->rip);
return 0;
}

2
kernel/process/process.h
View File

@ -330,8 +330,8 @@ void process_exit_notify();
{ \
asm volatile("movq %0, %%cr3 \n\t" ::"r"(next_pcb->mm->pgd) \
: "memory"); \
flush_tlb(); \
} while (0)
// flush_tlb(); \
// 获取当前cpu id
#define proc_current_cpu_id (current_pcb->cpu_id)