[BUG] 8 Axis on Octopus, no longer compiles

[ellensp]

Did you test the latest bugfix-2.1.x code?

Yes, and the problem still exists.

Bug Description

8 axis example config no longer builds

Bug Timeline

Since #25761

Expected behavior

It should build

Actual behavior

it errors with:

Marlin/src/HAL/STM32/../../inc/../core/types.h:982:68: error: expected unqualified-id before numeric constant
  982 |       bool LOGICAL_AXIS_LIST(E:1, A:1, B:1, C:1, _I:1, _J:1, _K:1, _U:1, _V:1, _W:1);
      |                                                                    ^~

Steps to Reproduce

1. use Configs https://github.com/MarlinFirmware/Configurations/tree/import-2.1.x/config/examples/linear_axes/Octopus%208%20LINEAR_AXES
2. build
3. see the error

Version of Marlin Firmware

Bugfix-2.1.x

Electronics

Octopus

Additional information & file uploads

Configuration.zip

[ellensp]

Issue is in Marlin/src/core/types.h

    struct {
      bool LOGICAL_AXIS_LIST(E:1, A:1, B:1, C:1, _I:1, _J:1, _K:1, _U:1, _V:1, _W:1);

but _U is defined as #define _U 01 in ,.platformio/packages/toolchain-gccarmnoneeabi@1.90201.191206/arm-none-eabi/includ/ctype.h

[ellensp]

Simply adding #undef _U before the struct will allow it to build. But what does this break?

[andrea199]

Yes exactly is strange that all the other letters do not have this error.
I tried with 6 axes and it compiles

[sjasonsmith]

Symbols beginning with an underscore followed by a capital letter are reserved for use by the C++ implementation. Marlin should not be using any of these defined on this line.

[batista352]

estou com o mesmo problema não consigo fazer funcionar mesmo com #undef _U #undef _V fica assim

*** [.pio/build/STM32H723ZE_btt/src/src/MarlinCore.cpp.o] Error 1
Compiling .pio/build/STM32H723ZE_btt/src/src/gcode/feature/trinamic/M906.cpp.o
In file included from Marlin/src/feature/../inc/MarlinConfigPre.h:37,
from Marlin/src/feature/../inc/MarlinConfig.h:28,
from Marlin/src/feature/babystep.cpp:23:
Marlin/src/feature/../module/stepper.h:92:60: error: 'I_ENABLE_PIN' was not declared in this scope; did you mean 'Z_ENABLE_PIN'?
92 | NUM_AXIS_LIST_(X_ENABLE_PIN, Y_ENABLE_PIN, Z_ENABLE_PIN, I_ENABLE_PIN, J_ENABLE_PIN, K_ENABLE_PIN, U_ENABLE_PIN, V_ENABLE_PIN, W_ENABLE_PIN)
| ^~~~~~~~~~~~
Marlin/src/feature/../inc/../core/macros.h:322:44: note: in definition of macro 'LIST_8'
322 | #define LIST_8( A,B,C,D,E,F,G,H,...) A,B,C,D,E,F,G,H
| ^
Marlin/src/feature/../inc/../core/macros.h:333:24: note: in expansion of macro 'LIST_N'
333 | #define LIST_N(N,V...) LIST_N(N,V)
| ^~~~~~~
Marlin/src/feature/../inc/../core/types.h:41:31: note: in expansion of macro 'LIST_N'
41 | #define NUM_AXIS_LIST(V...) LIST_N(NUM_AXES, V)
| ^~~~~~
Marlin/src/feature/../inc/../core/types.h:77:33: note: in expansion of macro 'NUM_AXIS_LIST'
77 | #define NUM_AXIS_LIST(V...) NUM_AXIS_LIST(V) NUM_AXES_SEP
| ^~~~~~~~~~~~~
Marlin/src/feature/../module/stepper.h:92:3: note: in expansion of macro 'NUM_AXIS_LIST'
92 | NUM_AXIS_LIST_(X_ENABLE_PIN, Y_ENABLE_PIN, Z_ENABLE_PIN, I_ENABLE_PIN, J_ENABLE_PIN, K_ENABLE_PIN, U_ENABLE_PIN, V_ENABLE_PIN, W_ENABLE_PIN)
| ^~~~~~~~~~~~~~

usando 6 eixos funciona mais preciso de 8 eixos uso OCTOPUS_PRO_V1_1 com STM32H723ZE

[batista352]

quando não uso #undef _U fica assim

realloc(): invalid pointer
arm-none-eabi-gcc: internal compiler error: Aborted signal terminated program as
Please submit a full bug report,
with preprocessed source if appropriate.
See https://gcc.gnu.org/bugs/ for instructions.
*** [.pio/build/STM32H723ZE_btt/SrcWrapper/src/stm32/clock.c.o] Error 4
In file included from Marlin/src/HAL/STM32/../../inc/MarlinConfigPre.h:37,
from Marlin/src/HAL/STM32/../../inc/MarlinConfig.h:28,
from Marlin/src/HAL/STM32/HAL.cpp:26:
Marlin/src/HAL/STM32/../../inc/../core/types.h:983:68: error: expected unqualified-id before numeric constant
983 | bool LOGICAL_AXIS_LIST(E:1, A:1, B:1, C:1, _I:1, _J:1, _K:1, _U:1, _V:1, _W:1);
| ^~
Marlin/src/HAL/STM32/../../inc/../core/macros.h:322:50: note: in definition of macro 'LIST_8'
322 | #define LIST_8( A,B,C,D,E,F,G,H,...) A,B,C,D,E,F,G,H

[ellensp]

This is issue is addressed in #26174, so closing

[thisiskeithb]

FYI: The fix was broken out & comitted directly in 18e65f5.