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From: | Richard Henderson |
Subject: | Re: [PATCH] target/mips: tcg: detect out-of-bounds accesses to cpu_gpr and cpu_gpr_hi |
Date: | Mon, 3 Apr 2023 11:21:51 -0700 |
User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.9.0 |
On 4/3/23 10:29, Paolo Bonzini wrote:
In some cases (for example gen_compute_branch_nm in nanomips_translate.c.inc) registers can be unused on some paths and a negative value is passed in that case: gen_compute_branch_nm(ctx, OPC_BPOSGE32, 4, -1, -2, imm << 1); To avoid an out of bounds access in those cases, introduce assertions. Signed-off-by: Paolo Bonzini<pbonzini@redhat.com> --- target/mips/tcg/translate.c | 4 ++++ 1 file changed, 4 insertions(+)
Reviewed-by: Richard Henderson <richard.henderson@linaro.org> r~
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