修改了上下文切换退出时的bug，该bug会导致中断被提前打开造成死锁

2019-11-05 10:30:47 +08:00 · 2019-11-05 10:30:47 +08:00 · 80a4912baf
parent 2c55f11b67
commit 80a4912baf
1 changed files with 1 additions and 1 deletions
--- a/libcpu/risc-v/common/context_gcc.S
+++ b/libcpu/risc-v/common/context_gcc.S
@ -175,7 +175,7 @@ rt_hw_context_switch_exit:
    LOAD x1,   1 * REGBYTES(sp)

    li    t0, 0x00001800
-    csrs  mstatus, t0
+    csrw  mstatus, t0
    LOAD a0,   2 * REGBYTES(sp)
    csrs mstatus, a0