48 lines
1.1 KiB
C
48 lines
1.1 KiB
C
/**
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* @file thread_armv7m.c
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* @author zhangzheng (135874329@qq.com)
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* @brief
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* @version 0.1
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* @date 2023-09-29
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*
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* @copyright Copyright (c) 2023
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*
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*/
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#include "types.h"
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#include "thread.h"
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#include "printk.h"
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#include "thread_armv7m.h"
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#include "app.h"
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#include "mm_wrap.h"
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#include "arch.h"
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#include "string.h"
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syscall_entry_func syscall_handler_get(void)
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{
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return syscall_entry;
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}
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void thread_user_pf_set(thread_t *cur_th, void *pc, void *user_sp, void *ram, umword_t stack)
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{
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umword_t usp = ((umword_t)(user_sp - 8) & ~0x7UL);
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if (stack)
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{
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usp -= THREAD_MSG_BUG_LEN;
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memcpy((void *)usp, (void *)stack, THREAD_MSG_BUG_LEN);
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}
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pf_t *cur_pf = (pf_t *)(usp)-1; // thread_get_pf(cur_th);
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cur_pf->pf_s.xpsr = 0x01000000L;
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cur_pf->pf_s.lr = (umword_t)NULL; //!< 线程退出时调用的函数
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cur_pf->pf_s.pc = (umword_t)pc | 0x1;
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cur_pf->rg1[5] = (umword_t)ram;
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cur_th->sp.knl_sp = ((char *)cur_th + THREAD_BLOCK_SIZE - 8);
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cur_th->sp.user_sp = cur_pf;
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cur_th->sp.sp_type = 1;
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printk("exc_regs:%x %x %x\n", cur_pf->pf_s.pc, cur_th->sp.user_sp, ram);
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}
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