[Qemu-devel] tcg: improve MAX_CODE_GEN_BUFFER_SIZE for arm

[TeLeMan]

I know MAX_CODE_GEN_BUFFER_SIZE is limited by the host direct branch
instructions.But the arm's MAX_CODE_GEN_BUFFER_SIZE is so small.I
tried improving MAX_CODE_GEN_BUFFER_SIZE.I wrote some check codes for
the overflow offset in tcg_out_b(), tcg_out_bl(),
tcg_out_blx_imm(),reloc_pc24(). But I didn't catch any overflow case
when tb_size and MAX_CODE_GEN_BUFFER_SIZE were larger than 32MB. After
the generated code size was larger than 32MB, qemu crashed.

Any suggest for this issue?

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