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[HUST][CSE]mips/common/exception.c/rt_set_except_vector (#7238)

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* mips/common/exception.c/rt_set_except_vector

* Update exception.c

---------

Co-authored-by: Bernard Xiong <bernard.xiong@gmail.com>
This commit is contained in:
d1zzy126
2023-04-14 14:06:43 +08:00
committed by GitHub
parent ef1b3383a6
commit 5c1b071a0c
1 changed files with 3 additions and 2 deletions
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5
libcpu/mips/common/exception.c
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@@ -82,13 +82,14 @@ exception_func_t sys_exception_handlers[RT_EXCEPTION_MAX];
*/ */
exception_func_t rt_set_except_vector(int n, exception_func_t func) exception_func_t rt_set_except_vector(int n, exception_func_t func)
{ {
exception_func_t old_handler = sys_exception_handlers[n]; exception_func_t old_handler;
if ((n == 0) || (n > RT_EXCEPTION_MAX) || (!func)) if ((n < 0) || (n >= RT_EXCEPTION_MAX) || (!func))
{ {
return 0; return 0;
} }
old_handler = sys_exception_handlers[n];
sys_exception_handlers[n] = func; sys_exception_handlers[n] = func;
return old_handler; return old_handler;