fix did not save & restore register x1

2019-10-08 21:24:02 +08:00
parent ae3ada8dfe
commit 1fc66ae527
2 changed files with 13 additions and 71 deletions
--- a/arch/risc-v/common/tos_cpu.c
+++ b/arch/risc-v/common/tos_cpu.c
@@ -122,7 +122,7 @@ __KERNEL__ k_stack_t *cpu_task_stk_init(void *entry,
    regs->a0        = (cpu_data_t)arg;          // argument
    regs->ra        = (cpu_data_t)0xACE00ACE;   // return address
    regs->mstatus   = (cpu_data_t)0x00001880;   // return to machine mode and enable interrupt
-    regs->epc       = (cpu_data_t)entry;        // task entry
+    regs->mepc      = (cpu_data_t)entry;        // task entry

    return (k_stack_t*)sp;
 }