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[v5,00/48] single-binary: compile target/arm twice

Message ID 20250505015223.3895275-1-pierrick.bouvier@linaro.org
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Series single-binary: compile target/arm twice | expand

Message

Pierrick Bouvier May 5, 2025, 1:51 a.m. UTC 
More work toward single-binary.

Some files have external dependencies for the single-binary:
- target/arm/gdbstub.c: gdbhelpers
- target/arm/arm-qmp-cmds.c: qapi
- target/arm/tcg/translate*: need deep cleanup in include/tcg
- target/arm/tcg/cpu*: need TargetInfo implemented for arm/aarch64
- target/arm/tcg/*-helper*: need deeper split between aarch64 and arm code
They will not be ported in this series.

Built on {linux, windows, macos} x {x86_64, aarch64}
Fully tested on linux-x86_64

v5
--

CI: https://github.com/pbo-linaro/qemu/actions/runs/14825451208/job/41617949501
- Do not define a separate vaddr type in tcg, simply alias to i32/i64 (Richard)
- target/arm/tcg/crypto_helper.c
- target/arm/tcg/hflags.c
- target/arm/tcg/iwmmxt_helper.c
- target/arm/tcg/neon_helper.c
- target/arm/tcg/tlb_helper.c
- target/arm/tcg/tlb-insns.c
- target/arm/tcg/arith_helper.c
- target/arm/tcg/vfp_helper.c

v4
--

CI: https://github.com/pbo-linaro/qemu/actions/runs/14816460393/job/41597560792
- add patch to apply target config for picking files in libsystem/libuser
  Useful for Philippe series for semihosting:
  https://lore.kernel.org/qemu-devel/20250502220524.81548-1-philmd@linaro.org/T/#me750bbaeeba4d16791121fe98b44202afaec4068
- update some patches description (Philippe & Richard)
- tcg: introduce vaddr type (Richard)
- modify concerned helpers to use vaddr instead of i64 (Richard)
- use int64_t instead of uint64_t for top_bits in ptw.c (Philippe)
- arm_casq_ptw: use CONFIG_ATOMIC64 instead of TARGET_AARCH64 and comment why
  (Richard)
- target/arm/machine.c

v3
--

CI: https://github.com/pbo-linaro/qemu/actions/runs/14765763846/job/41456754153
- Add missing license for new files (Richard)
- target/arm/debug_helper.c
- target/arm/helper.c
- target/arm/vfp_fpscr.c
- target/arm/arch_dump.c
- target/arm/arm-powerctl.c
- target/arm/cortex-regs.c
- target/arm/ptw.c
- target/arm/kvm-stub.c

v2
--

- Remove duplication of kvm struct and constant (Alex)
- Use target_big_endian() (Anton)

v1
--

- target/arm/cpu.c

Philippe Mathieu-Daudé (1):
  target/arm: Replace target_ulong -> uint64_t for HWBreakpoint

Pierrick Bouvier (47):
  include/system/hvf: missing vaddr include
  meson: add common libs for target and target_system
  meson: apply target config for picking files from libsystem and
    libuser
  target/arm: move kvm stubs and remove CONFIG_KVM from kvm_arm.h
  target/arm/kvm-stub: add kvm_arm_reset_vcpu stub
  target/arm/cpu: move arm_cpu_kvm_set_irq to kvm.c
  accel/hvf: add hvf_enabled() for common code
  target/arm/cpu: remove TARGET_BIG_ENDIAN dependency
  target/arm/cpu: remove TARGET_AARCH64 around aarch64_cpu_dump_state
    common
  target/arm/cpu: remove TARGET_AARCH64 in arm_cpu_finalize_features
  target/arm/cpu: compile file twice (user, system) only
  target/arm/cpu32-stubs.c: compile file twice (user, system)
  tcg: add vaddr type for helpers
  target/arm/helper: use vaddr instead of target_ulong for
    exception_pc_alignment
  target/arm/helper: use vaddr instead of target_ulong for probe_access
  target/arm/helper: extract common helpers
  target/arm/debug_helper: only include common helpers
  target/arm/debug_helper: remove target_ulong
  target/arm/debug_helper: compile file twice (user, system)
  target/arm/helper: restrict include to common helpers
  target/arm/helper: replace target_ulong by vaddr
  target/arm/helper: expose aarch64 cpu registration
  target/arm/helper: remove remaining TARGET_AARCH64
  target/arm/helper: compile file twice (user, system)
  target/arm/vfp_fpscr: compile file twice (user, system)
  target/arm/arch_dump: remove TARGET_AARCH64 conditionals
  target/arm/arch_dump: compile file once (system)
  target/arm/arm-powerctl: compile file once (system)
  target/arm/cortex-regs: compile file once (system)
  target/arm/ptw: replace target_ulong with int64_t
  target/arm/ptw: replace TARGET_AARCH64 by CONFIG_ATOMIC64 from
    arm_casq_ptw
  target/arm/ptw: compile file once (system)
  target/arm/meson: accelerator files are not needed in user mode
  target/arm/kvm-stub: compile file once (system)
  target/arm/machine: reduce migration include to avoid target specific
    definitions
  target/arm/machine: remove TARGET_AARCH64 from migration state
  target/arm/machine: move cpu_post_load kvm bits to
    kvm_arm_cpu_post_load function
  target/arm/kvm-stub: add missing stubs
  target/arm/machine: compile file once (system)
  target/arm/tcg/crypto_helper: compile file twice (system, user)
  target/arm/tcg/hflags: compile file twice (system, user)
  target/arm/tcg/iwmmxt_helper: compile file twice (system, user)
  target/arm/tcg/neon_helper: compile file twice (system, user)
  target/arm/tcg/tlb_helper: compile file twice (system, user)
  target/arm/tcg/tlb-insns: compile file twice (system, user)
  target/arm/tcg/arith_helper: compile file twice (system, user)
  target/arm/tcg/vfp_helper: compile file twice (system, user)

 meson.build                    |  104 ++-
 include/system/hvf.h           |   15 +-
 include/tcg/tcg-op-common.h    |    1 +
 include/tcg/tcg.h              |   14 +
 target/arm/helper.h            | 1152 +------------------------------
 target/arm/internals.h         |    6 +-
 target/arm/kvm_arm.h           |   87 +--
 target/arm/tcg/helper.h        | 1153 ++++++++++++++++++++++++++++++++
 include/exec/helper-head.h.inc |   11 +
 accel/hvf/hvf-stub.c           |    5 +
 target/arm/arch_dump.c         |    6 -
 target/arm/cpu.c               |   47 +-
 target/arm/cpu32-stubs.c       |   26 +
 target/arm/debug_helper.c      |    6 +-
 target/arm/helper.c            |   21 +-
 target/arm/hyp_gdbstub.c       |    6 +-
 target/arm/kvm-stub.c          |   97 +++
 target/arm/kvm.c               |   42 +-
 target/arm/machine.c           |   15 +-
 target/arm/ptw.c               |    6 +-
 target/arm/tcg/arith_helper.c  |    4 +-
 target/arm/tcg/crypto_helper.c |    4 +-
 target/arm/tcg/hflags.c        |    4 +-
 target/arm/tcg/iwmmxt_helper.c |    4 +-
 target/arm/tcg/neon_helper.c   |    4 +-
 target/arm/tcg/op_helper.c     |    2 +-
 target/arm/tcg/tlb-insns.c     |    7 -
 target/arm/tcg/tlb_helper.c    |    5 +-
 target/arm/tcg/translate-a64.c |    2 +-
 target/arm/tcg/translate.c     |    2 +-
 target/arm/tcg/vfp_helper.c    |    4 +-
 tcg/tcg.c                      |    5 +
 accel/hvf/meson.build          |    1 +
 target/arm/meson.build         |   41 +-
 target/arm/tcg/meson.build     |   29 +-
 35 files changed, 1542 insertions(+), 1396 deletions(-)
 create mode 100644 target/arm/tcg/helper.h
 create mode 100644 accel/hvf/hvf-stub.c
 create mode 100644 target/arm/cpu32-stubs.c