Hi,

HMP monitor supports printing $register expression. The lookup
was done via GDB stub registers, and supplementary MonitorDef
HMP-specific tables.

Migrate HMP registers to use the GDB infrastructure and remove the
legacy HMP MonitorDef. Use a "qemu-debug" register group, as they are
aliases or synthetic registers, but gdb doesn't seem to care.

Known behavioural changes on RISC-V: CSR lookup is now case-sensitive
and vector registers now report "unkown register" instead of a
target-specific message ("Unable to print the value of vector vreg 'v0'
from this API")

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
---
Marc-André Lureau (10):
      hmp: don't crash on invalid register
      gdbstub: fix next register base after register gaps
      gdbstub: set feature->base_reg for dynamic features
      target/i386: expose segment limits via GDB
      monitor/hmp: add CPUClass::get_pc fallback for HMP $pc
      target/m68k: expose system registers via GDB
      target/sparc64: expose system registers via GDB
      target/riscv: bypass smstateen check in debugger mode
      target/riscv: expose register aliases via GDB
      monitor/hmp: remove legacy MonitorDef infrastructure

 configs/targets/i386-softmmu.mak          |   2 +-
 configs/targets/m68k-softmmu.mak          |   2 +-
 configs/targets/riscv32-linux-user.mak    |   2 +-
 configs/targets/riscv32-softmmu.mak       |   2 +-
 configs/targets/riscv64-bsd-user.mak      |   2 +-
 configs/targets/riscv64-linux-user.mak    |   2 +-
 configs/targets/riscv64-softmmu.mak       |   2 +-
 configs/targets/sparc64-softmmu.mak       |   2 +-
 configs/targets/x86_64-softmmu.mak        |   2 +-
 gdbstub/gdb-xml/i386-segments.xml         |  14 +++
 gdbstub/gdb-xml/m68k-system.xml           |  32 +++++++
 gdbstub/gdb-xml/riscv-32bit-alias.xml     | 105 ++++++++++++++++++++++
 gdbstub/gdb-xml/riscv-32bit-fpu-alias.xml |  40 +++++++++
 gdbstub/gdb-xml/riscv-64bit-alias.xml     | 105 ++++++++++++++++++++++
 gdbstub/gdb-xml/riscv-64bit-fpu-alias.xml |  46 ++++++++++
 gdbstub/gdb-xml/sparc64-system.xml        |  22 +++++
 gdbstub/gdbstub.c                         |  14 +--
 include/hw/core/cpu.h                     |   2 +-
 include/hw/core/sysemu-cpu-ops.h          |  16 ----
 include/monitor/hmp.h                     |   6 --
 include/qemu/typedefs.h                   |   1 -
 monitor/hmp.c                             |  52 ++---------
 target/arm/gdbstub.c                      |   8 +-
 target/arm/gdbstub64.c                    |  10 ++-
 target/i386/cpu.c                         |  32 -------
 target/i386/gdbstub.c                     |  24 +++++
 target/m68k/cpu.c                         |  22 -----
 target/m68k/helper.c                      |  47 ++++++++++
 target/ppc/gdbstub.c                      |   2 +-
 target/riscv/cpu.c                        |   1 -
 target/riscv/gdbstub.c                    |  52 ++++++++++-
 target/riscv/internals.h                  |   3 -
 target/riscv/monitor.c                    | 140 ------------------------------
 target/riscv/tcg/csr.c                    |   3 +-
 target/sparc/cpu.c                        |  19 ----
 target/sparc/gdbstub.c                    |  38 ++++++++
 target/xtensa/cpu.c                       |   2 +-
 37 files changed, 562 insertions(+), 314 deletions(-)
---
base-commit: 209b2afaface001c7d4d981e38f186afe7b24a50
change-id: 20260910-query-reg-80cd59cf4707

Best regards,
--  
Marc-André Lureau <marcandre.lureau@redhat.com>