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81 lines
1.1 KiB
C
81 lines
1.1 KiB
C
3 years ago
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#include "ecall.h"
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#include "sched.h"
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#include "csr.h"
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void ecall_handle_fork()
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{
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}
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void ecall_handle_sleep(int until)
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{
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}
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void ecall_handle_wait(int pid, int timeout)
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{
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}
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void ecall_handle_kill(int pid)
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{
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}
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void ecall_handle_exit(int status)
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{
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}
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void ecall_handle_m_create()
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{
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}
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void ecall_handle_m_lock(int mutex_id)
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{
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}
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void ecall_handle_m_unlock(int mutex_id)
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{
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}
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void ecall_handle_m_destroy(int mutex_id)
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{
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}
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void trap_handle_ecall() {
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int *regs = get_current_process_registers();
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int code = regs[16];
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__asm__("ebreak");
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HALT(18);
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}
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void trap_handle(int interrupt_bit, int code, int mtval)
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{
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if (interrupt_bit) {
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switch (code) {
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case 7:
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scheduler_run_next();
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break;
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default:
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// impossible
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HALT(12)
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break;
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}
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} else {
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switch (code) {
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case 8: // user ecall
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trap_handle_ecall();
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break;
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default:
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HALT(13);
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}
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}
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HALT(1);
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__builtin_unreachable();
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}
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