[Bug 1854738] [NEW] ppc doesn't support for mttcg but ppc64 supported

[Yonggang Luo]

Public bug reported:

Currently ppc and ppc64abi32 doesn't suppport for mttcg, I am looking for 
support
```
  ppc)
    gdb_xml_files="power-core.xml power-fpu.xml power-altivec.xml power-spe.xml"
  ;;
  ppc64)
    TARGET_BASE_ARCH=ppc
    TARGET_ABI_DIR=ppc
    mttcg=yes
    gdb_xml_files="power64-core.xml power-fpu.xml power-altivec.xml 
power-spe.xml power-vsx.xml"
  ;;
  ppc64le)
    TARGET_ARCH=ppc64
    TARGET_BASE_ARCH=ppc
    TARGET_ABI_DIR=ppc
    mttcg=yes
    gdb_xml_files="power64-core.xml power-fpu.xml power-altivec.xml 
power-spe.xml power-vsx.xml"
  ;;
  ppc64abi32)
    TARGET_ARCH=ppc64
    TARGET_BASE_ARCH=ppc
    TARGET_ABI_DIR=ppc
    echo "TARGET_ABI32=y" >> $config_target_mak
    gdb_xml_files="power64-core.xml power-fpu.xml power-altivec.xml 
power-spe.xml power-vsx.xml"
  ;;
```

** Affects: qemu
     Importance: Undecided
         Status: New

-- 
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https://bugs.launchpad.net/bugs/1854738

Title:
  ppc doesn't support for mttcg  but ppc64 supported

Status in QEMU:
  New

Bug description:
  Currently ppc and ppc64abi32 doesn't suppport for mttcg, I am looking for 
support
  ```
    ppc)
      gdb_xml_files="power-core.xml power-fpu.xml power-altivec.xml 
power-spe.xml"
    ;;
    ppc64)
      TARGET_BASE_ARCH=ppc
      TARGET_ABI_DIR=ppc
      mttcg=yes
      gdb_xml_files="power64-core.xml power-fpu.xml power-altivec.xml 
power-spe.xml power-vsx.xml"
    ;;
    ppc64le)
      TARGET_ARCH=ppc64
      TARGET_BASE_ARCH=ppc
      TARGET_ABI_DIR=ppc
      mttcg=yes
      gdb_xml_files="power64-core.xml power-fpu.xml power-altivec.xml 
power-spe.xml power-vsx.xml"
    ;;
    ppc64abi32)
      TARGET_ARCH=ppc64
      TARGET_BASE_ARCH=ppc
      TARGET_ABI_DIR=ppc
      echo "TARGET_ABI32=y" >> $config_target_mak
      gdb_xml_files="power64-core.xml power-fpu.xml power-altivec.xml 
power-spe.xml power-vsx.xml"
    ;;
  ```

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