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authorPaolo Bonzini <pbonzini@redhat.com>2023-04-03 19:28:36 +0200
committerPaolo Bonzini <pbonzini@redhat.com>2023-04-20 11:17:35 +0200
commitdfae46c3ba4880036a3df0b0aafca0c792b7cb9d (patch)
treef43e30b2d4ceb4eb332783388c1597bca7db6d4e /migration/qemu-file.c
parentcc03dfa827819c78fdc6c8c5065910d6ac2567f1 (diff)
downloadfocaccia-qemu-dfae46c3ba4880036a3df0b0aafca0c792b7cb9d.tar.gz
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target/mips: tcg: detect out-of-bounds accesses to cpu_gpr and cpu_gpr_hi
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.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'migration/qemu-file.c')
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