[Emc-commit] [LinuxCNC/linuxcnc] 39245f: Deprecate uses_fp parameter in RTAPI and HAL APIs

SourceForge Headquarters 1320 Columbia Street Suite 310 San Diego, CA 92101 +1 (858) 422-6466

  Branch: refs/heads/master
  Home:   https://github.com/LinuxCNC/linuxcnc
  Commit: 39245f5eff264ea163f3aeb3e8c2bddef0658a00
      https://github.com/LinuxCNC/linuxcnc/commit/39245f5eff264ea163f3aeb3e8c2bddef0658a00
  Author: Luca Toniolo <lu...@ai...>
  Date:   2026-04-07 (Tue, 07 Apr 2026)

  Changed paths:
    M docs/src/hal/basic-hal.adoc
    M docs/src/hal/rtcomps.adoc
    M docs/src/hal/tools.adoc
    M docs/src/hal/tutorial.adoc
    M docs/src/man/man3/hal_create_thread.3.adoc
    M docs/src/man/man3/hal_export_funct.3.adoc
    M docs/src/man/man3/rtapi_task_new.3.adoc
    M docs/src/man/man9/motion.9.adoc
    M src/hal/components/abs_s32.comp
    M src/hal/components/abs_s64.comp
    M src/hal/components/and2.comp
    M src/hal/components/bin2gray.comp
    M src/hal/components/bitmerge.comp
    M src/hal/components/bitslice.comp
    M src/hal/components/bitwise.comp
    M src/hal/components/charge_pump.comp
    M src/hal/components/comp.comp
    M src/hal/components/conv.comp.in
    M src/hal/components/dbounce.comp
    M src/hal/components/edge.comp
    M src/hal/components/estop_latch.comp
    M src/hal/components/flipflop.comp
    M src/hal/components/gantry.comp
    M src/hal/components/gray2bin.comp
    M src/hal/components/histobins.comp
    M src/hal/components/latencybins.comp
    M src/hal/components/led_dim.comp
    M src/hal/components/logic.comp
    M src/hal/components/lut5.comp
    M src/hal/components/maj3.comp
    M src/hal/components/match8.comp
    M src/hal/components/max31855.comp
    M src/hal/components/message.comp
    M src/hal/components/mkconv.sh
    M src/hal/components/multiclick.comp
    M src/hal/components/not.comp
    M src/hal/components/or2.comp
    M src/hal/components/reset.comp
    M src/hal/components/safety_latch.comp
    M src/hal/components/sample_hold.comp
    M src/hal/components/select8.comp
    M src/hal/components/sim_axis_hardware.comp
    M src/hal/components/sim_home_switch.comp
    M src/hal/components/sim_parport.comp
    M src/hal/components/sphereprobe.comp
    M src/hal/components/spindle.comp
    M src/hal/components/threads.c
    M src/hal/components/threadtest.comp
    M src/hal/components/timedelta.comp
    M src/hal/components/tof.comp
    M src/hal/components/toggle.comp
    M src/hal/components/toggle2nist.comp
    M src/hal/components/ton.comp
    M src/hal/components/tp.comp
    M src/hal/components/tristate_bit.comp
    M src/hal/components/updown.comp
    M src/hal/components/xor2.comp
    M src/hal/drivers/pcl720.comp
    M src/hal/drivers/serport.comp
    M src/hal/hal.h
    M src/hal/hal_lib.c
    M src/hal/utils/halcompile.g
    M src/rtapi/rtai_rtapi.c
    M src/rtapi/rtapi.h
    M src/rtapi/uspace_rtai.cc
    M src/rtapi/uspace_rtapi_app.cc
    M tests/halcompile/names/names_dont_match.comp
    M tests/halcompile/names/names_match.comp
    M tests/limit3/constraints/test.hal
    M tests/limit3/sunny-day/test.hal
    M tests/module-loading/rtapi-app-main-fails/rtapi_app_main_fails.comp
    M tests/symbols.0/test_define.comp
    M tests/symbols.0/test_use.comp
    M tests/symbols.1/test_define1.comp
    M tests/symbols.1/test_use1.comp

  Log Message:
  -----------
  Deprecate uses_fp parameter in RTAPI and HAL APIs

All threads now unconditionally save and restore FPU/SSE state,
making the uses_fp parameter obsolete. Rather than removing it
from the API (which would break out-of-tree components), this
commit deprecates it with a grace period:

RTAPI: uses_fp parameter is accepted but ignored; FPU state is
always saved in rtapi_task_new() regardless of the value passed.

HAL: uses_fp parameter is accepted but ignored in
hal_export_funct(), hal_export_functf(), and hal_create_thread().
All functions and threads are always marked as FP-capable
internally. The addf FP compatibility check is removed since
all threads are now FP-capable.

halcompile: fp/nofp keywords in function declarations now emit
a deprecation warning and are treated as fp (always return 1).
The keywords will be removed in a future version.

Remove fp/nofp from all in-tree .comp files, conv.comp.in
template, and mkconv.sh generator. Remove fp1= from test .hal
files. Out-of-tree .comp files will still parse but emit a
deprecation warning.

Documentation: API man pages, tutorials, and guides updated with
deprecation notices. Removed references to FP thread restrictions
that no longer apply.

No API signatures changed — out-of-tree components continue to
compile unchanged but will see warnings from halcompile if they
use fp/nofp.

Based on patch by BsAtHome.

Ref: linuxcnc/linuxcnc#3895

  Commit: 5281dc2654c9c8884bf4a1fd868f9b9d3d6e77d1
      https://github.com/LinuxCNC/linuxcnc/commit/5281dc2654c9c8884bf4a1fd868f9b9d3d6e77d1
  Author: andypugh <an...@bo...>
  Date:   2026-04-07 (Tue, 07 Apr 2026)

  Changed paths:
    M docs/src/hal/basic-hal.adoc
    M docs/src/hal/rtcomps.adoc
    M docs/src/hal/tools.adoc
    M docs/src/hal/tutorial.adoc
    M docs/src/man/man3/hal_create_thread.3.adoc
    M docs/src/man/man3/hal_export_funct.3.adoc
    M docs/src/man/man3/rtapi_task_new.3.adoc
    M docs/src/man/man9/motion.9.adoc
    M src/hal/components/abs_s32.comp
    M src/hal/components/abs_s64.comp
    M src/hal/components/and2.comp
    M src/hal/components/bin2gray.comp
    M src/hal/components/bitmerge.comp
    M src/hal/components/bitslice.comp
    M src/hal/components/bitwise.comp
    M src/hal/components/charge_pump.comp
    M src/hal/components/comp.comp
    M src/hal/components/conv.comp.in
    M src/hal/components/dbounce.comp
    M src/hal/components/edge.comp
    M src/hal/components/estop_latch.comp
    M src/hal/components/flipflop.comp
    M src/hal/components/gantry.comp
    M src/hal/components/gray2bin.comp
    M src/hal/components/histobins.comp
    M src/hal/components/latencybins.comp
    M src/hal/components/led_dim.comp
    M src/hal/components/logic.comp
    M src/hal/components/lut5.comp
    M src/hal/components/maj3.comp
    M src/hal/components/match8.comp
    M src/hal/components/max31855.comp
    M src/hal/components/message.comp
    M src/hal/components/mkconv.sh
    M src/hal/components/multiclick.comp
    M src/hal/components/not.comp
    M src/hal/components/or2.comp
    M src/hal/components/reset.comp
    M src/hal/components/safety_latch.comp
    M src/hal/components/sample_hold.comp
    M src/hal/components/select8.comp
    M src/hal/components/sim_axis_hardware.comp
    M src/hal/components/sim_home_switch.comp
    M src/hal/components/sim_parport.comp
    M src/hal/components/sphereprobe.comp
    M src/hal/components/spindle.comp
    M src/hal/components/threads.c
    M src/hal/components/threadtest.comp
    M src/hal/components/timedelta.comp
    M src/hal/components/tof.comp
    M src/hal/components/toggle.comp
    M src/hal/components/toggle2nist.comp
    M src/hal/components/ton.comp
    M src/hal/components/tp.comp
    M src/hal/components/tristate_bit.comp
    M src/hal/components/updown.comp
    M src/hal/components/xor2.comp
    M src/hal/drivers/pcl720.comp
    M src/hal/drivers/serport.comp
    M src/hal/hal.h
    M src/hal/hal_lib.c
    M src/hal/utils/halcompile.g
    M src/rtapi/rtai_rtapi.c
    M src/rtapi/rtapi.h
    M src/rtapi/uspace_rtai.cc
    M src/rtapi/uspace_rtapi_app.cc
    M tests/halcompile/names/names_dont_match.comp
    M tests/halcompile/names/names_match.comp
    M tests/limit3/constraints/test.hal
    M tests/limit3/sunny-day/test.hal
    M tests/module-loading/rtapi-app-main-fails/rtapi_app_main_fails.comp
    M tests/symbols.0/test_define.comp
    M tests/symbols.0/test_use.comp
    M tests/symbols.1/test_define1.comp
    M tests/symbols.1/test_use1.comp

  Log Message:
  -----------
  Merge pull request #3901 from grandixximo/fix/remove-uses-fp-2.10

Remove uses_fp parameter from RTAPI and HAL APIs

Compare: https://github.com/LinuxCNC/linuxcnc/compare/658d666a6f55...5281dc2654c9

To unsubscribe from these emails, change your notification settings at https://github.com/LinuxCNC/linuxcnc/settings/notifications