[Qemu-commits] [qemu/qemu] cb4add: target/m68k: Use DISAS

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[Qemu-commits] [qemu/qemu] cb4add: target/m68k: Use DISAS_NORETURN for e

From:	GitHub
Subject:	[Qemu-commits] [qemu/qemu] cb4add: target/m68k: Use DISAS_NORETURN for exceptions
Date:	Mon, 11 Jun 2018 05:36:59 -0700

  Branch: refs/heads/master
  Home:   https://github.com/qemu/qemu
  Commit: cb4add334a5a8db263c20c33c5365be3868f8967
      
https://github.com/qemu/qemu/commit/cb4add334a5a8db263c20c33c5365be3868f8967
  Author: Richard Henderson <address@hidden>
  Date:   2018-06-11 (Mon, 11 Jun 2018)

  Changed paths:
    M target/m68k/translate.c

  Log Message:
  -----------
  target/m68k: Use DISAS_NORETURN for exceptions

The raise_exception helper does not return.  Do not generate
any code following that.

Signed-off-by: Richard Henderson <address@hidden>
Message-Id: <address@hidden>
Signed-off-by: Laurent Vivier <address@hidden>


  Commit: 825340f5659647deb62743c3cb479ec8d78f1862
      
https://github.com/qemu/qemu/commit/825340f5659647deb62743c3cb479ec8d78f1862
  Author: Richard Henderson <address@hidden>
  Date:   2018-06-11 (Mon, 11 Jun 2018)

  Changed paths:
    M target/m68k/translate.c

  Log Message:
  -----------
  target/m68k: Replace DISAS_TB_JUMP with DISAS_NORETURN

We have exited the TB after using goto_tb; there is no
distinction from DISAS_NORETURN.

Signed-off-by: Richard Henderson <address@hidden>
Message-Id: <address@hidden>
Signed-off-by: Laurent Vivier <address@hidden>


  Commit: 707ddb5ac6f91309ff6ed6bec988ed8100846f50
      
https://github.com/qemu/qemu/commit/707ddb5ac6f91309ff6ed6bec988ed8100846f50
  Author: Richard Henderson <address@hidden>
  Date:   2018-06-11 (Mon, 11 Jun 2018)

  Changed paths:
    M target/m68k/translate.c

  Log Message:
  -----------
  target/m68k: Remove DISAS_JUMP_NEXT as unused

Signed-off-by: Richard Henderson <address@hidden>
Message-Id: <address@hidden>
Signed-off-by: Laurent Vivier <address@hidden>


  Commit: 8aaf7da9c3b1f282b5a123de3e87a2e6ca87f3b9
      
https://github.com/qemu/qemu/commit/8aaf7da9c3b1f282b5a123de3e87a2e6ca87f3b9
  Author: Richard Henderson <address@hidden>
  Date:   2018-06-11 (Mon, 11 Jun 2018)

  Changed paths:
    M target/m68k/translate.c

  Log Message:
  -----------
  target/m68k: Use lookup_and_goto_tb for DISAS_JUMP

These are all indirect or out-of-page direct jumps.
We can indirectly chain to the next TB without going
back to the main loop.

Signed-off-by: Richard Henderson <address@hidden>
Message-Id: <address@hidden>
Signed-off-by: Laurent Vivier <address@hidden>


  Commit: 4106f26e95c83b8759c3fe61a4d3a1fa740db0a9
      
https://github.com/qemu/qemu/commit/4106f26e95c83b8759c3fe61a4d3a1fa740db0a9
  Author: Richard Henderson <address@hidden>
  Date:   2018-06-11 (Mon, 11 Jun 2018)

  Changed paths:
    M target/m68k/translate.c

  Log Message:
  -----------
  target/m68k: Rename DISAS_UPDATE and gen_lookup_tb

The name gen_lookup_tb is at odds with tcg_gen_lookup_and_goto_tb.
For these cases, we do indeed want to exit back to the main loop.
Similarly, DISAS_UPDATE performs no actual update, whereas DISAS_EXIT
does what it says.

Signed-off-by: Richard Henderson <address@hidden>
Message-Id: <address@hidden>
Signed-off-by: Laurent Vivier <address@hidden>


  Commit: a575cbe01caecf22ab322a9baa5930a6d9e39ca6
      
https://github.com/qemu/qemu/commit/a575cbe01caecf22ab322a9baa5930a6d9e39ca6
  Author: Richard Henderson <address@hidden>
  Date:   2018-06-11 (Mon, 11 Jun 2018)

  Changed paths:
    M target/m68k/translate.c

  Log Message:
  -----------
  target/m68k: Convert to DisasContextBase

Removed ctx->insn_pc in favour of ctx->base.pc_next.
Yes, it is annoying, but didn't want to waste its 4 bytes.

Signed-off-by: Richard Henderson <address@hidden>
Message-Id: <address@hidden>
Signed-off-by: Laurent Vivier <address@hidden>


  Commit: 11ab74b01e0a8ea4973eed89c6b90fa6e4fb9fb6
      
https://github.com/qemu/qemu/commit/11ab74b01e0a8ea4973eed89c6b90fa6e4fb9fb6
  Author: Richard Henderson <address@hidden>
  Date:   2018-06-11 (Mon, 11 Jun 2018)

  Changed paths:
    M target/m68k/translate.c

  Log Message:
  -----------
  target/m68k: Convert to TranslatorOps

Signed-off-by: Richard Henderson <address@hidden>
Message-Id: <address@hidden>
Signed-off-by: Laurent Vivier <address@hidden>


  Commit: 4c7a0f6f34869b3dfe7091d28ff27a8dfbdd8b70
      
https://github.com/qemu/qemu/commit/4c7a0f6f34869b3dfe7091d28ff27a8dfbdd8b70
  Author: Richard Henderson <address@hidden>
  Date:   2018-06-11 (Mon, 11 Jun 2018)

  Changed paths:
    M target/m68k/translate.c

  Log Message:
  -----------
  target/m68k: Improve ending TB at page boundaries

Rather than limit total TB size to PAGE-32 bytes, end the TB when
near the end of a page.  This should provide proper semantics of
SIGSEGV when executing near the end of a page.

Signed-off-by: Richard Henderson <address@hidden>
Message-Id: <address@hidden>
Signed-off-by: Laurent Vivier <address@hidden>


  Commit: a56f36c1d2bccbc50a53fa8093b93d205607f1b8
      
https://github.com/qemu/qemu/commit/a56f36c1d2bccbc50a53fa8093b93d205607f1b8
  Author: Richard Henderson <address@hidden>
  Date:   2018-06-11 (Mon, 11 Jun 2018)

  Changed paths:
    M target/m68k/translate.c

  Log Message:
  -----------
  target/m68k: Merge disas_m68k_insn into m68k_tr_translate_insn

Signed-off-by: Richard Henderson <address@hidden>
Message-Id: <address@hidden>
Signed-off-by: Laurent Vivier <address@hidden>


  Commit: 9f55925b8f50a962d1d08d815044db7767ae3838
      
https://github.com/qemu/qemu/commit/9f55925b8f50a962d1d08d815044db7767ae3838
  Author: Peter Maydell <address@hidden>
  Date:   2018-06-11 (Mon, 11 Jun 2018)

  Changed paths:
    M target/m68k/translate.c

  Log Message:
  -----------
  Merge remote-tracking branch 'remotes/vivier/tags/m68k-for-3.0-pull-request' 
into staging

Convert to TranslatorOps

I've updated the series to fix conflicts with:

21528149eb target/m68k: Add trailing '\n' to qemu_log() call
07ea28b418 tcg: Pass tb and index to tcg_gen_exit_tb separately

# gpg: Signature made Mon 11 Jun 2018 11:48:52 BST
# gpg:                using RSA key F30C38BD3F2FBE3C
# gpg: Good signature from "Laurent Vivier <address@hidden>"
# gpg:                 aka "Laurent Vivier <address@hidden>"
# gpg:                 aka "Laurent Vivier (Red Hat) <address@hidden>"
# Primary key fingerprint: CD2F 75DD C8E3 A4DC 2E4F  5173 F30C 38BD 3F2F BE3C

* remotes/vivier/tags/m68k-for-3.0-pull-request:
  target/m68k: Merge disas_m68k_insn into m68k_tr_translate_insn
  target/m68k: Improve ending TB at page boundaries
  target/m68k: Convert to TranslatorOps
  target/m68k: Convert to DisasContextBase
  target/m68k: Rename DISAS_UPDATE and gen_lookup_tb
  target/m68k: Use lookup_and_goto_tb for DISAS_JUMP
  target/m68k: Remove DISAS_JUMP_NEXT as unused
  target/m68k: Replace DISAS_TB_JUMP with DISAS_NORETURN
  target/m68k: Use DISAS_NORETURN for exceptions

Signed-off-by: Peter Maydell <address@hidden>


Compare: https://github.com/qemu/qemu/compare/a7a7309ca52c...9f55925b8f50
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