[Buildroot] [Bug 12761] New: Buildroot fails when building GCNano binaries for the STM32MP1

[Buildroot] [Bug 12761] New: Buildroot fails when building GCNano binaries for the STM32MP1

[bugzilla at busybox.net]

https://bugs.busybox.net/show_bug.cgi?id=12761

            Bug ID: 12761
           Summary: Buildroot fails when building GCNano binaries for the
                    STM32MP1
           Product: buildroot
           Version: unspecified
          Hardware: All
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P5
         Component: Other
          Assignee: unassigned at buildroot.uclibc.org
          Reporter: adecker246 at gmail.com
                CC: buildroot at uclibc.org
  Target Milestone: ---

Attempting to build for the STM32MP175C target with the GCNano binaries to
enable the GPU. I get the following error.

https://pastebin.com/9VHWLK4D



 CC [M] 
/home/ajdecker/projects/buildroot/output/build/gcnano-binaries-c01642ed5e18cf09ecd905af193e935cb3be95ed/./hal/os/linux/kernel/allocator/default/gc_hal_kernel_allocator_dma.o
/home/ajdecker/projects/buildroot/output/build/gcnano-binaries-c01642ed5e18cf09ecd905af193e935cb3be95ed/./hal/os/linux/kernel/allocator/default/gc_hal_kernel_allocator_dma.c:
In function ?_DmaAlloc?:
/home/ajdecker/projects/buildroot/output/build/gcnano-binaries-c01642ed5e18cf09ecd905af193e935cb3be95ed/./hal/os/linux/kernel/allocator/default/gc_hal_kernel_allocator_dma.c:167:11:
error: implicit declaration of function ?dma_alloc_writecombine?; did you mean
?pgprot_writecombine?? [-Werror=implicit-function-declaration]
  167 |         = dma_alloc_writecombine(galcore_device, NumPages * PAGE_SIZE, 
&mdlPriv->dmaHandle, gfp);
      |           ^~~~~~~~~~~~~~~~~~~~~~
      |           pgprot_writecombine
/home/ajdecker/projects/buildroot/output/build/gcnano-binaries-c01642ed5e18cf09ecd905af193e935cb3be95ed/./hal/os/linux/kernel/allocator/default/gc_hal_kernel_allocator_dma.c:167:9:
error: assignment to ?gctPOINTER? {aka ?void *?} from ?int? makes pointer from
integer without a cast [-Werror=int-conversion]
  167 |         = dma_alloc_writecombine(galcore_device, NumPages * PAGE_SIZE, 
&mdlPriv->dmaHandle, gfp);
      |         ^
/home/ajdecker/projects/buildroot/output/build/gcnano-binaries-c01642ed5e18cf09ecd905af193e935cb3be95ed/./hal/os/linux/kernel/allocator/default/gc_hal_kernel_allocator_dma.c:
In function ?_DmaFree?:
/home/ajdecker/projects/buildroot/output/build/gcnano-binaries-c01642ed5e18cf09ecd905af193e935cb3be95ed/./hal/os/linux/kernel/allocator/default/gc_hal_kernel_allocator_dma.c:288:5:
error: implicit declaration of function ?dma_free_writecombine?; did you mean
?pgprot_writecombine?? [-Werror=implicit-function-declaration]
  288 |     dma_free_writecombine(galcore_device, Mdl->numPages * PAGE_SIZE,
mdlPriv->kvaddr, mdlPriv->dmaHandle);
      |     ^~~~~~~~~~~~~~~~~~~~~
      |     pgprot_writecombine
/home/ajdecker/projects/buildroot/output/build/gcnano-binaries-c01642ed5e18cf09ecd905af193e935cb3be95ed/./hal/os/linux/kernel/allocator/default/gc_hal_kernel_allocator_dma.c:
In function ?_DmaMmap?:
/home/ajdecker/projects/buildroot/output/build/gcnano-binaries-c01642ed5e18cf09ecd905af193e935cb3be95ed/./hal/os/linux/kernel/allocator/default/gc_hal_kernel_allocator_dma.c:324:9:
error: implicit declaration of function ?dma_mmap_writecombine?
[-Werror=implicit-function-declaration]
  324 |     if (dma_mmap_writecombine(gcvNULL,
      |         ^~~~~~~~~~~~~~~~~~~~~

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[Buildroot] [Bug 12761] Buildroot fails when building GCNano binaries for the STM32MP1

[bugzilla at busybox.net]

https://bugs.busybox.net/show_bug.cgi?id=12761

Aaron Decker <adecker246@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Version|unspecified                 |2020.02

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[Buildroot] [Bug 12761] Buildroot fails when building GCNano binaries for the STM32MP1

[bugzilla at busybox.net]

https://bugs.busybox.net/show_bug.cgi?id=12761

--- Comment #1 from Thomas Petazzoni <thomas.petazzoni@free-electrons.com> ---
Thanks for the bug report. Could you try building against the 4.19 kernel
provided by ST at https://github.com/STMicroelectronics/linux/ ? It is very
likely that the kernel driver they ship as part of the gcnano-binaries package
builds fine only with their 4.19 kernel.

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[Buildroot] [Bug 12761] Buildroot fails when building GCNano binaries for the STM32MP1

[bugzilla at busybox.net]

https://bugs.busybox.net/show_bug.cgi?id=12761

--- Comment #2 from Aaron Decker <adecker246@gmail.com> ---
I gave that a shot using the tarball from the ST github. I get a different
error:

https://pastebin.com/UL4vfkNG


In file included from
/home/ajdecker/projects/buildroot/output/build/gcnano-binaries-c01642ed5e18cf09ecd905af193e935cb3be95ed/./hal/os/linux/kernel/gc_hal_kernel_linux.h:61,
                 from
/home/ajdecker/projects/buildroot/output/build/gcnano-binaries-c01642ed5e18cf09ecd905af193e935cb3be95ed/./hal/os/linux/kernel/gc_hal_kernel_driver.c:62:
./include/linux/module.h:133:6: error: ?init_module? specifies less restrictive
attribute than its target ?gpu_init?: ?cold? [-Werror=missing-attributes]
  133 |  int init_module(void) __attribute__((alias(#initfn)));
      |      ^~~~~~~~~~~
/home/ajdecker/projects/buildroot/output/build/gcnano-binaries-c01642ed5e18cf09ecd905af193e935cb3be95ed/./hal/os/linux/kernel/gc_hal_kernel_driver.c:1267:1:
note: in expansion of macro ?module_init?
 1267 | module_init(gpu_init);
      | ^~~~~~~~~~~
/home/ajdecker/projects/buildroot/output/build/gcnano-binaries-c01642ed5e18cf09ecd905af193e935cb3be95ed/./hal/os/linux/kernel/gc_hal_kernel_driver.c:1224:19:
note: ?init_module? target declared here
 1224 | static int __init gpu_init(void)
      |                   ^~~~~~~~
In file included from
/home/ajdecker/projects/buildroot/output/build/gcnano-binaries-c01642ed5e18cf09ecd905af193e935cb3be95ed/./hal/os/linux/kernel/gc_hal_kernel_linux.h:61,
                 from
/home/ajdecker/projects/buildroot/output/build/gcnano-binaries-c01642ed5e18cf09ecd905af193e935cb3be95ed/./hal/os/linux/kernel/gc_hal_kernel_driver.c:62:
./include/linux/module.h:139:7: error: ?cleanup_module? specifies less
restrictive attribute than its target ?gpu_exit?: ?cold?
[-Werror=missing-attributes]
  139 |  void cleanup_module(void) __attribute__((alias(#exitfn)));
      |       ^~~~~~~~~~~~~~
/home/ajdecker/projects/buildroot/output/build/gcnano-binaries-c01642ed5e18cf09ecd905af193e935cb3be95ed/./hal/os/linux/kernel/gc_hal_kernel_driver.c:1268:1:
note: in expansion of macro ?module_exit?
 1268 | module_exit(gpu_exit);
      | ^~~~~~~~~~~
/home/ajdecker/projects/buildroot/output/build/gcnano-binaries-c01642ed5e18cf09ecd905af193e935cb3be95ed/./hal/os/linux/kernel/gc_hal_kernel_driver.c:1255:20:
note: ?cleanup_module? target declared here
 1255 | static void __exit gpu_exit(void)
      |                    ^~~~~~~~

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[Buildroot] [Bug 12761] Buildroot fails when building GCNano binaries for the STM32MP1

[bugzilla at busybox.net]

https://bugs.busybox.net/show_bug.cgi?id=12761

Thomas Petazzoni <thomas.petazzoni@free-electrons.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |INVALID

--- Comment #3 from Thomas Petazzoni <thomas.petazzoni@free-electrons.com> ---
(In reply to Aaron Decker from comment #2)
You're seeing an issue in include/linux/module.h due to a compatibility problem
with gcc 9.x. However, this was fixed in upstream Linux and in the ST fork,
since version v4.19-stm32mp-r1.5.

Could you try building with v4.19-stm32mp-r3.1 instead ?

Nevertheless, this is not a Buildroot bug.

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