[00/29] maintainer/next for 9.0 (testing, gdbstub, plugins, disas)

Message

Alex Bennée March 5, 2024, 12:09 p.m. UTC

As I'm going to be away for most of the tree stabilisation period I'm
trying to be proactive clearing my maintainer backlog before the
softfreeze. With that in mind heres what is ready to go in:

Testing

Most stuff is being directly applied as downstreams stop working (c.f.
BSD and MacOS breakage). So all I have left is a fix for qos-tests
that shows up when LTO is enabled.

GDBStub

These are Ilya's fork follow mode patches for gdbstub. I hope to
include Gustavo's signal handling stuff if it is fixed this week.

Plugins

This introduces Pierrick's work to have thread-safe inline counters
via the concept of a vcpu indexed scoreboard. There will be further
work over the next cycle to enable more efficient instrumentation and
address more of the missing pieces people have been asking for.

Finally there are a few cosmetic patches to ensure the disassembly
that plugins get don't include opcodes which plugins can get another
way. They are the only patches that need review:

  target/riscv: honour show_opcodes when disassembling
  target/loongarch: honour show_opcodes when disassembling
  disas/hppa: honour show_opcodes
  disas: introduce show_opcodes

Hopefully I can get the PR for this rolled later this week.

Alex.

Alex Bennée (5):
  tests: bump QOS_PATH_MAX_ELEMENT_SIZE again
  disas: introduce show_opcodes
  disas/hppa: honour show_opcodes
  target/loongarch: honour show_opcodes when disassembling
  target/riscv: honour show_opcodes when disassembling

Ilya Leoshkevich (12):
  gdbstub: Support disablement in a multi-threaded process
  {linux,bsd}-user: Introduce get_task_state()
  {linux,bsd}-user: Update ts_tid after fork()
  gdbstub: Introduce gdbserver_fork_start()
  {linux,bsd}-user: Pass pid to fork_end()
  {linux,bsd}-user: Pass pid to gdbserver_fork()
  gdbstub: Call gdbserver_fork() both in parent and in child
  gdbstub: Introduce gdb_handle_query_supported_user()
  gdbstub: Introduce gdb_handle_set_thread_user()
  gdbstub: Introduce gdb_handle_detach_user()
  gdbstub: Implement follow-fork-mode child
  tests/tcg: Add two follow-fork-mode tests

Pierrick Bouvier (12):
  plugins: scoreboard API
  plugins: define qemu_plugin_u64
  plugins: implement inline operation relative to cpu_index
  plugins: add inline operation per vcpu
  tests/plugin: add test plugin for inline operations
  tests/plugin/mem: migrate to new per_vcpu API
  tests/plugin/insn: migrate to new per_vcpu API
  tests/plugin/bb: migrate to new per_vcpu API
  contrib/plugins/hotblocks: migrate to new per_vcpu API
  contrib/plugins/howvec: migrate to new per_vcpu API
  plugins: remove non per_vcpu inline operation from API
  plugins: cleanup codepath for previous inline operation

 bsd-user/bsd-file.h                           |   2 +-
 bsd-user/freebsd/os-proc.h                    |   6 +-
 bsd-user/qemu.h                               |   7 +-
 gdbstub/internals.h                           |   3 +
 include/disas/dis-asm.h                       |   8 +
 include/gdbstub/user.h                        |  10 +-
 include/qemu/plugin.h                         |   7 +
 include/qemu/qemu-plugin.h                    | 142 +++++++---
 include/user/safe-syscall.h                   |   2 +-
 linux-user/m68k/target_cpu.h                  |   2 +-
 linux-user/qemu.h                             |   5 +
 linux-user/signal-common.h                    |   2 +-
 linux-user/user-internals.h                   |   2 +-
 plugins/plugin.h                              |  17 +-
 tests/qtest/libqos/qgraph.h                   |   2 +-
 accel/tcg/plugin-gen.c                        |  69 ++++-
 bsd-user/main.c                               |   9 +-
 bsd-user/signal.c                             |  20 +-
 contrib/plugins/hotblocks.c                   |  50 ++--
 contrib/plugins/howvec.c                      |  53 ++--
 disas/disas.c                                 |   1 +
 disas/hppa.c                                  |   8 +-
 disas/riscv.c                                 |  28 +-
 gdbstub/gdbstub.c                             |  29 ++-
 gdbstub/user-target.c                         |   4 +-
 gdbstub/user.c                                | 244 +++++++++++++++++-
 linux-user/aarch64/cpu_loop.c                 |   2 +-
 linux-user/arm/cpu_loop.c                     |   4 +-
 linux-user/arm/signal.c                       |   2 +-
 linux-user/cris/cpu_loop.c                    |   2 +-
 linux-user/elfload.c                          |   2 +-
 linux-user/hppa/signal.c                      |   2 +-
 linux-user/linuxload.c                        |   2 +-
 linux-user/m68k/cpu_loop.c                    |   2 +-
 linux-user/main.c                             |   8 +-
 linux-user/mips/cpu_loop.c                    |   2 +-
 linux-user/ppc/signal.c                       |   4 +-
 linux-user/riscv/cpu_loop.c                   |   2 +-
 linux-user/signal.c                           |  30 +--
 linux-user/syscall.c                          |  32 +--
 linux-user/vm86.c                             |  18 +-
 linux-user/xtensa/signal.c                    |   2 +-
 plugins/api.c                                 | 100 +++++--
 plugins/core.c                                |  79 +++++-
 semihosting/arm-compat-semi.c                 |   8 +-
 target/loongarch/disas.c                      |  13 +-
 tests/plugin/bb.c                             |  63 ++---
 tests/plugin/inline.c                         | 186 +++++++++++++
 tests/plugin/insn.c                           | 106 ++++----
 tests/plugin/mem.c                            |  46 ++--
 tests/tcg/multiarch/follow-fork-mode.c        |  56 ++++
 plugins/qemu-plugins.symbols                  |  13 +-
 tests/plugin/meson.build                      |   2 +-
 tests/tcg/Makefile.target                     |   2 +-
 tests/tcg/multiarch/Makefile.target           |  17 +-
 .../gdbstub/follow-fork-mode-child.py         |  40 +++
 .../gdbstub/follow-fork-mode-parent.py        |  16 ++
 57 files changed, 1257 insertions(+), 338 deletions(-)
 create mode 100644 tests/plugin/inline.c
 create mode 100644 tests/tcg/multiarch/follow-fork-mode.c
 create mode 100644 tests/tcg/multiarch/gdbstub/follow-fork-mode-child.py
 create mode 100644 tests/tcg/multiarch/gdbstub/follow-fork-mode-parent.py