[Qemu-devel] [PATCH qom-cpu v3 00/41] QOM CPUState, part 11: GDB stub

["Andreas Färber" <afaerber@suse.de>]

Hello,

This series cleans up gdbstub by changing all its internal CPU state to CPUState
and by moving most target-specific code into the target directories.

Support for m68k, moxie and unicore32 to set the PC via gdbstub is added.

Lightweight subclasses for XtensaCPU are introduced, keeping the XtensaConfig
mechanisms, to stop xtensa from deviating at gdbstub level wrt register count.

I still wonder whether there would be interest in adding a "program-counter"
dynamic property to the CPU, given that a setter has been factored out here?

v3 avoids find_cpu() related breakages by deferring GDBState::c_cpu conversion
until GDBState::g_cpu and find_cpu() can easily be converted, too.

Available for testing at:
git://github.com/afaerber/qemu-cpu.git qom-cpu-11.v3
https://github.com/afaerber/qemu-cpu/commits/qom-cpu-11.v3

Regards,
Andreas

v2 -> v3:
* Rebased onto c52a6b67c1d7c6fc9fb2e3ba988d7b978e1487d3 revert (Max).
* Don't replace find_cpu() with qemu_get_cpu() (Max).
* Squashed GDBState::c_cpu and GDBState::g_cpu() conversion.

v1 -> v2:
* Applied some patches.
* Introduced new vaddr type, name courtesy of PMM.
* Avoided making the TranslationBlock typedef generally available.
* Rebased to avoid env/cpu field in alpha DisasContext (rth).
* Added missing ppc_cpu_get_phys_page_debug assignment.
* Converted two more cpu_get_phys_page_debug()s breaking xtensa (Max).
* Simplified xtensa subclasses by keeping CPUXtensaState::config for now (Max).
* Split up cpu_gdb_{read,write}_register() conversion (rth).
* Documented all CPUClass and CPUState field additions.
* Appended patch to drop GDB_CORE_XML.

Cc: Anthony Liguori <anthony@codemonkey.ws>
Cc: Blue Swirl <blauwirbel@gmail.com>
Cc: Aurélien Jarno <aurelien@aurel32.net>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Jan Kiszka <jan.kiszka@web.de> (gdbstub)
Cc: Anthony Green <green@moxielogic.com> (moxie)
Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> (unicore32)
Cc: Max Filippov <jcmvbkbc@gmail.com> (xtensa)
Cc: Richard Henderson <rth@twiddle.net>
Cc: Michael Walle <michael@walle.cc> (lm32)
Cc: Peter Maydell <peter.maydell@linaro.org> (vaddr)

Andreas Färber (41):
  cpu: Introduce vaddr type
  cpu: Introduce CPUClass::set_pc() for gdb_set_cpu_pc()
  target-m68k: Implement CPUClass::set_pc()
  target-moxie: Implement CPUClass::set_pc()
  target-unicore32: Implement CPUClass::set_pc()
  cpu: Introduce CPUClass::synchronize_from_tb() for cpu_pc_from_tb()
  cpu: Move singlestep_enabled field from CPU_COMMON to CPUState
  gdbstub: Update gdb_handlesig() and gdb_signalled() Coding Style
  cpu: Change cpu_single_step() argument to CPUState
  kvm: Change kvm_{insert,remove}_breakpoint() argument to CPUState
  gdbstub: Change syscall callback argument to CPUState
  gdbstub: Change gdb_handlesig() argument to CPUState
  gdbstub: Change gdb_{read,write}_register() argument to CPUState
  cpu: Turn cpu_get_phys_page_debug() into a CPUClass hook
  exec: Change cpu_memory_rw_debug() argument to CPUState
  cpu: Introduce CPUClass::memory_rw_debug() for
    target_memory_rw_debug()
  gdbstub: Change GDBState::{c,g}_cpu and find_cpu() to CPUState
  cpu: Move gdb_regs field from CPU_COMMON to CPUState
  gdbstub: Change gdb_register_coprocessor() argument to CPUState
  target-xtensa: Introduce XtensaCPU subclasses
  gdbstub: Fix cpu_gdb_{read,write}_register() Coding Style
  gdbstub: Drop dead code in cpu_gdb_{read,write}_register()
  cpu: Introduce CPUState::gdb_num_regs and CPUClass::gdb_num_core_regs
  target-i386: Move cpu_gdb_{read,write}_register()
  target-ppc: Move cpu_gdb_{read,write}_register()
  target-sparc: Move cpu_gdb_{read,write}_register()
  target-arm: Move cpu_gdb_{read,write}_register()
  target-m68k: Move cpu_gdb_{read,write}_register()
  target-mips: Move cpu_gdb_{read,write}_register()
  target-openrisc: Move cpu_gdb_{read,write}_register()
  target-sh4: Move cpu_gdb_{read,write}_register()
  target-microblaze: Move cpu_gdb_{read,write}_register()
  target-cris: Move cpu_gdb_{read,write}_register()
  target-alpha: Move cpu_gdb_{read,write}_register()
  target-s390x: Move cpu_gdb_{read,write}_register()
  target-lm32: Move cpu_gdb_{read,write}_register()
  target-xtensa: Move cpu_gdb_{read,write}_register()
  gdbstub: Replace GET_REG*() macros with gdb_get_reg*() functions
  cpu: Introduce CPUClass::gdb_{read,write}_register()
  target-cris: Factor out CPUClass::gdb_read_register() hook for v10
  cpu: Introduce CPUClass::gdb_core_xml_file for GDB_CORE_XML

 bsd-user/main.c                 |   10 +-
 cpu-exec.c                      |   10 +-
 cpus.c                          |    6 +-
 disas.c                         |    4 +-
 exec.c                          |   36 +-
 gdbstub.c                       | 1621 ++++-----------------------------------
 hw/i386/kvmvapic.c              |   78 +-
 hw/xtensa/xtensa_lx60.c         |    8 +-
 hw/xtensa/xtensa_sim.c          |   10 +-
 include/exec/cpu-all.h          |   14 +-
 include/exec/cpu-defs.h         |    3 -
 include/exec/gdbstub.h          |   51 +-
 include/exec/softmmu-semi.h     |   18 +-
 include/qom/cpu.h               |  122 +--
 include/sysemu/kvm.h            |    4 +-
 kvm-all.c                       |   12 +-
 kvm-stub.c                      |    4 +-
 linux-user/main.c               |   35 +-
 linux-user/signal.c             |    3 +-
 monitor.c                       |    2 +-
 qom/cpu.c                       |   22 +
 stubs/Makefile.objs             |    1 +
 stubs/gdbstub.c                 |    5 +
 target-alpha/Makefile.objs      |    1 +
 target-alpha/cpu-qom.h          |    3 +
 target-alpha/cpu.c              |   18 +-
 target-alpha/cpu.h              |    5 -
 target-alpha/gdbstub.c          |   93 +++
 target-alpha/helper.c           |    5 +-
 target-alpha/translate.c        |    3 +-
 target-arm/Makefile.objs        |    1 +
 target-arm/arm-semi.c           |   10 +-
 target-arm/cpu-qom.h            |    5 +
 target-arm/cpu.c                |   17 +-
 target-arm/cpu.h                |    5 -
 target-arm/gdbstub.c            |  102 +++
 target-arm/helper.c             |   15 +-
 target-arm/translate.c          |    7 +-
 target-cris/Makefile.objs       |    1 +
 target-cris/cpu-qom.h           |    6 +
 target-cris/cpu.c               |   19 +
 target-cris/cpu.h               |    4 -
 target-cris/gdbstub.c           |  130 ++++
 target-cris/helper.c            |    7 +-
 target-cris/translate.c         |    7 +-
 target-i386/Makefile.objs       |    1 +
 target-i386/cpu-qom.h           |    5 +
 target-i386/cpu.c               |   22 +-
 target-i386/cpu.h               |    5 -
 target-i386/gdbstub.c           |  231 ++++++
 target-i386/helper.c            |   12 +-
 target-i386/kvm.c               |   20 +-
 target-i386/translate.c         |    5 +-
 target-lm32/Makefile.objs       |    1 +
 target-lm32/cpu-qom.h           |    3 +
 target-lm32/cpu.c               |   16 +-
 target-lm32/cpu.h               |    5 -
 target-lm32/gdbstub.c           |   92 +++
 target-lm32/helper.c            |    6 +-
 target-lm32/translate.c         |    7 +-
 target-m68k/Makefile.objs       |    1 +
 target-m68k/cpu-qom.h           |    3 +
 target-m68k/cpu.c               |   15 +
 target-m68k/cpu.h               |    5 -
 target-m68k/gdbstub.c           |   75 ++
 target-m68k/helper.c            |    5 +-
 target-m68k/m68k-semi.c         |    5 +-
 target-m68k/translate.c         |    7 +-
 target-microblaze/Makefile.objs |    1 +
 target-microblaze/cpu-qom.h     |    3 +
 target-microblaze/cpu.c         |   16 +-
 target-microblaze/cpu.h         |    5 -
 target-microblaze/gdbstub.c     |   56 ++
 target-microblaze/helper.c      |    4 +-
 target-microblaze/translate.c   |    8 +-
 target-mips/Makefile.objs       |    1 +
 target-mips/cpu-qom.h           |    3 +
 target-mips/cpu.c               |   34 +-
 target-mips/cpu.h               |    7 -
 target-mips/gdbstub.c           |  155 ++++
 target-mips/helper.c            |    7 +-
 target-mips/translate.c         |   11 +-
 target-moxie/cpu.c              |   13 +-
 target-moxie/cpu.h              |    6 +-
 target-moxie/helper.c           |   11 +-
 target-moxie/translate.c        |    5 +-
 target-openrisc/Makefile.objs   |    1 +
 target-openrisc/cpu.c           |   16 +-
 target-openrisc/cpu.h           |    8 +-
 target-openrisc/gdbstub.c       |   83 ++
 target-openrisc/mmu.c           |    5 +-
 target-openrisc/translate.c     |    7 +-
 target-ppc/Makefile.objs        |    1 +
 target-ppc/cpu-qom.h            |    3 +
 target-ppc/cpu.h                |    5 -
 target-ppc/gdbstub.c            |  131 ++++
 target-ppc/mmu_helper.c         |    4 +-
 target-ppc/translate.c          |    8 +-
 target-ppc/translate_init.c     |   35 +-
 target-s390x/Makefile.objs      |    1 +
 target-s390x/cpu-qom.h          |    3 +
 target-s390x/cpu.c              |   14 +
 target-s390x/cpu.h              |    5 -
 target-s390x/gdbstub.c          |   88 +++
 target-s390x/helper.c           |    5 +-
 target-s390x/translate.c        |    5 +-
 target-sh4/Makefile.objs        |    1 +
 target-sh4/cpu-qom.h            |    3 +
 target-sh4/cpu.c                |   23 +
 target-sh4/cpu.h                |    6 -
 target-sh4/gdbstub.c            |  146 ++++
 target-sh4/helper.c             |    5 +-
 target-sh4/translate.c          |    8 +-
 target-sparc/Makefile.objs      |    1 +
 target-sparc/cpu-qom.h          |    3 +
 target-sparc/cpu.c              |   34 +-
 target-sparc/cpu.h              |   11 +-
 target-sparc/gdbstub.c          |  208 +++++
 target-sparc/mmu_helper.c       |   22 +-
 target-sparc/translate.c        |    3 +-
 target-unicore32/cpu-qom.h      |    1 +
 target-unicore32/cpu.c          |   11 +
 target-unicore32/cpu.h          |    5 -
 target-unicore32/softmmu.c      |    7 +-
 target-unicore32/translate.c    |    7 +-
 target-xtensa/Makefile.objs     |    1 +
 target-xtensa/cpu-qom.h         |    6 +
 target-xtensa/cpu.c             |   40 +-
 target-xtensa/cpu.h             |    5 -
 target-xtensa/gdbstub.c         |  109 +++
 target-xtensa/helper.c          |   47 +-
 target-xtensa/translate.c       |    7 +-
 target-xtensa/xtensa-semi.c     |   14 +-
 133 files changed, 2709 insertions(+), 1889 deletions(-)
 create mode 100644 stubs/gdbstub.c
 create mode 100644 target-alpha/gdbstub.c
 create mode 100644 target-arm/gdbstub.c
 create mode 100644 target-cris/gdbstub.c
 create mode 100644 target-i386/gdbstub.c
 create mode 100644 target-lm32/gdbstub.c
 create mode 100644 target-m68k/gdbstub.c
 create mode 100644 target-microblaze/gdbstub.c
 create mode 100644 target-mips/gdbstub.c
 create mode 100644 target-openrisc/gdbstub.c
 create mode 100644 target-ppc/gdbstub.c
 create mode 100644 target-s390x/gdbstub.c
 create mode 100644 target-sh4/gdbstub.c
 create mode 100644 target-sparc/gdbstub.c
 create mode 100644 target-xtensa/gdbstub.c

-- 
1.8.1.4