From b032dff1616fe64a4dfec63e593f0fac634ef3ab Mon Sep 17 00:00:00 2001
From: zhangjun <2281979437@qq.com>
Date: Sun, 30 Jul 2017 19:46:28 +0800
Subject: fix bug in rt_hw_context_switch_interrupt_do 	save sp to old thread 
 clear rt_thread_switch_interrupt_flag always enable interrupt after
 rt_hw_context_switch judeg the type of interrupt in trap_entry, then call
 handler(Machine timer interrupt of Machine external interrupt)

---
 libcpu/risc-v/e310/init.c | 20 --------------------
 1 file changed, 20 deletions(-)

(limited to 'libcpu/risc-v/e310/init.c')

diff --git a/libcpu/risc-v/e310/init.c b/libcpu/risc-v/e310/init.c
index 3a2b39614c..a8db529804 100644
--- a/libcpu/risc-v/e310/init.c
+++ b/libcpu/risc-v/e310/init.c
@@ -187,26 +187,6 @@ extern void handle_m_ext_interrupt();
 extern void handle_m_time_interrupt();
 #endif
 
-uintptr_t handle_trap(uintptr_t mcause, uintptr_t epc)
-{
-  if (0){
-#ifdef USE_PLIC
-    // External Machine-Level interrupt from PLIC
-  } else if ((mcause & MCAUSE_INT) && ((mcause & MCAUSE_CAUSE) == IRQ_M_EXT)) {
-    handle_m_ext_interrupt();
-#endif
-#ifdef USE_M_TIME
-    // External Machine-Level interrupt from PLIC
-  } else if ((mcause & MCAUSE_INT) && ((mcause & MCAUSE_CAUSE) == IRQ_M_TIMER)){
-    handle_m_time_interrupt();
-#endif
-  }
-  else {
-    write(1, "trap\n", 5);
-    _exit(1 + mcause);
-  }
-  return epc;
-}
 
 void _init()
 {
-- 
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