Merge tag 'pull-tcg-20230116' of https://gitlab.com/rth7680/qemu into staging

- Reorg cpu_tb_exec around setjmp.
- Use __attribute__((target)) for buffer_is_zero.
- Add perfmap and jitdump for perf support.

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* tag 'pull-tcg-20230116' of https://gitlab.com/rth7680/qemu:
  accel/tcg: Split out cpu_exec_{setjmp,loop}
  util/bufferiszero: Use __attribute__((target)) for avx2/avx512
  tcg: add perfmap and jitdump
  accel/tcg: Add debuginfo support
  linux-user: Clean up when exiting due to a signal

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>