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target/loongarch/cpu: Fix coverity errors about excp_names

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Fix out-of-bounds errors when access excp_names[] array. the valid
boundary size of excp_names should be 0 to ARRAY_SIZE(excp_names)-1.
However, the general code do not consider the max boundary.

Fix coverity CID: 1489758

Signed-off-by: Xiaojuan Yang <yangxiaojuan@loongson.cn>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220715060740.1500628-4-yangxiaojuan@loongson.cn>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Xiaojuan Yang 2022-07-15 14:07:38 +08:00 committed by Richard Henderson
parent 056dac5384
commit e4ad16f492
1 changed files with 3 additions and 3 deletions
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6
target/loongarch/cpu.c
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@ -140,7 +140,7 @@ static void loongarch_cpu_do_interrupt(CPUState *cs)
if (cs->exception_index != EXCCODE_INT) {
if (cs->exception_index < 0 ||
cs->exception_index > ARRAY_SIZE(excp_names)) {
cs->exception_index >= ARRAY_SIZE(excp_names)) {
name = "unknown";
} else {
name = excp_names[cs->exception_index];
@ -190,8 +190,8 @@ static void loongarch_cpu_do_interrupt(CPUState *cs)
cause = cs->exception_index;
break;
default:
qemu_log("Error: exception(%d) '%s' has not been supported\n",
cs->exception_index, excp_names[cs->exception_index]);
qemu_log("Error: exception(%d) has not been supported\n",
cs->exception_index);
abort();
}