get_drm_fd error on stm32

[nandra]

Compiling cog for stm32 platform kirkstone branch getting following :

cog/0.14.1-r0/cog-0.14.1/platform/drm/cog-drm-modeset-renderer.c:110:1: error: conflicting types for 'get_drm_fd'; have 'int(CogDrmModesetRenderer *)'
  110 | get_drm_fd(CogDrmModesetRenderer *self)
      | ^~~~~~~~~~
In file included from /data/projects/test/yocto/build-openstlinuxweston-stm32mp1/tmp-glibc/work/cortexa7t2hf-neon-vfpv4-ostl-linux-gnueabi/cog/0.14.1-r0/cog-0.14.1/platform/drm/cog-drm-modeset-renderer.c:11:
/data/projects/test/yocto/build-openstlinuxweston-stm32mp1/tmp-glibc/work/cortexa7t2hf-neon-vfpv4-ostl-linux-gnueabi/cog/0.14.1-r0/recipe-sysroot/usr/include/gbm.h:246:1: note: previous declaration of 'get_drm_fd' with type 'int(void)'
  246 | get_drm_fd(void);
      | ^~~~~~~~~~

Any ideas? Seem local static function clash with one defined in drm headers?

[clopez]

It seems something in your environment (likely non-mesa graphics drivers) is defining a type different than expected.

Can you paste here the content (or link to it) of this file?
/data/projects/test/yocto/build-openstlinuxweston-stm32mp1/tmp-glibc/work/cortexa7t2hf-neon-vfpv4-ostl-linux-gnueabi/cog/0.14.1-r0/recipe-sysroot/usr/include/gbm.h

[nandra]

@clopez this is file content:

 * Copyright © 2011 Intel Corporation
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice (including the next
 * paragraph) shall be included in all copies or substantial portions of the
 * Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT.  IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 *
 * Authors:
 *    Benjamin Franzke <benjaminfranzke@googlemail.com>
 */

#ifndef _GBM_H_
#define _GBM_H_

#define __GBM__ 1

#include <stddef.h>
#include <stdint.h>

#ifdef __cplusplus
extern "C" {
#endif

/**
 * \file gbm.h
 * \brief Generic Buffer Manager
 */

struct gbm_device;
struct gbm_bo;
struct gbm_surface;

/**
 * \mainpage The Generic Buffer Manager
 *
 * This module provides an abstraction that the caller can use to request a
 * buffer from the underlying memory management system for the platform.
 *
 * This allows the creation of portable code whilst still allowing access to
 * the underlying memory manager.
 */

/**
 * Abstraction representing the handle to a buffer allocated by the
 * manager
 */
union gbm_bo_handle {
   void *ptr;
   int32_t s32;
   uint32_t u32;
   int64_t s64;
   uint64_t u64;
};

/** Format of the allocated buffer */
enum gbm_bo_format {
   /** RGB with 8 bits per channel in a 32 bit value */
   GBM_BO_FORMAT_XRGB8888,
   /** ARGB with 8 bits per channel in a 32 bit value */
   GBM_BO_FORMAT_ARGB8888
};

#define __gbm_fourcc_code(a,b,c,d) ((uint32_t)(a) | ((uint32_t)(b) << 8) | \
                             ((uint32_t)(c) << 16) | ((uint32_t)(d) << 24))

#define GBM_FORMAT_BIG_ENDIAN (1<<31) /* format is big endian instead of little endian */

/* color index */
#define GBM_FORMAT_C8          __gbm_fourcc_code('C', '8', ' ', ' ') /* [7:0] C */

/* 8 bpp Red */
#define GBM_FORMAT_R8          __gbm_fourcc_code('R', '8', ' ', ' ') /* [7:0] R */

/* 16 bpp RG */
#define GBM_FORMAT_GR88        __gbm_fourcc_code('G', 'R', '8', '8') /* [15:0] G:R 8:8 little endian */

/* 8 bpp RGB */
#define GBM_FORMAT_RGB332      __gbm_fourcc_code('R', 'G', 'B', '8') /* [7:0] R:G:B 3:3:2 */
#define GBM_FORMAT_BGR233      __gbm_fourcc_code('B', 'G', 'R', '8') /* [7:0] B:G:R 2:3:3 */

/* 16 bpp RGB */
#define GBM_FORMAT_XRGB4444    __gbm_fourcc_code('X', 'R', '1', '2') /* [15:0] x:R:G:B 4:4:4:4 little endian */
#define GBM_FORMAT_XBGR4444    __gbm_fourcc_code('X', 'B', '1', '2') /* [15:0] x:B:G:R 4:4:4:4 little endian */
#define GBM_FORMAT_RGBX4444    __gbm_fourcc_code('R', 'X', '1', '2') /* [15:0] R:G:B:x 4:4:4:4 little endian */
#define GBM_FORMAT_BGRX4444    __gbm_fourcc_code('B', 'X', '1', '2') /* [15:0] B:G:R:x 4:4:4:4 little endian */

#define GBM_FORMAT_ARGB4444    __gbm_fourcc_code('A', 'R', '1', '2') /* [15:0] A:R:G:B 4:4:4:4 little endian */
#define GBM_FORMAT_ABGR4444    __gbm_fourcc_code('A', 'B', '1', '2') /* [15:0] A:B:G:R 4:4:4:4 little endian */
#define GBM_FORMAT_RGBA4444    __gbm_fourcc_code('R', 'A', '1', '2') /* [15:0] R:G:B:A 4:4:4:4 little endian */
#define GBM_FORMAT_BGRA4444    __gbm_fourcc_code('B', 'A', '1', '2') /* [15:0] B:G:R:A 4:4:4:4 little endian */

#define GBM_FORMAT_XRGB1555    __gbm_fourcc_code('X', 'R', '1', '5') /* [15:0] x:R:G:B 1:5:5:5 little endian */
#define GBM_FORMAT_XBGR1555    __gbm_fourcc_code('X', 'B', '1', '5') /* [15:0] x:B:G:R 1:5:5:5 little endian */
#define GBM_FORMAT_RGBX5551    __gbm_fourcc_code('R', 'X', '1', '5') /* [15:0] R:G:B:x 5:5:5:1 little endian */
#define GBM_FORMAT_BGRX5551    __gbm_fourcc_code('B', 'X', '1', '5') /* [15:0] B:G:R:x 5:5:5:1 little endian */

#define GBM_FORMAT_ARGB1555    __gbm_fourcc_code('A', 'R', '1', '5') /* [15:0] A:R:G:B 1:5:5:5 little endian */
#define GBM_FORMAT_ABGR1555    __gbm_fourcc_code('A', 'B', '1', '5') /* [15:0] A:B:G:R 1:5:5:5 little endian */
#define GBM_FORMAT_RGBA5551    __gbm_fourcc_code('R', 'A', '1', '5') /* [15:0] R:G:B:A 5:5:5:1 little endian */
#define GBM_FORMAT_BGRA5551    __gbm_fourcc_code('B', 'A', '1', '5') /* [15:0] B:G:R:A 5:5:5:1 little endian */

#define GBM_FORMAT_RGB565      __gbm_fourcc_code('R', 'G', '1', '6') /* [15:0] R:G:B 5:6:5 little endian */
#define GBM_FORMAT_BGR565      __gbm_fourcc_code('B', 'G', '1', '6') /* [15:0] B:G:R 5:6:5 little endian */

/* 24 bpp RGB */
#define GBM_FORMAT_RGB888      __gbm_fourcc_code('R', 'G', '2', '4') /* [23:0] R:G:B little endian */
#define GBM_FORMAT_BGR888      __gbm_fourcc_code('B', 'G', '2', '4') /* [23:0] B:G:R little endian */

/* 32 bpp RGB */
#define GBM_FORMAT_XRGB8888    __gbm_fourcc_code('X', 'R', '2', '4') /* [31:0] x:R:G:B 8:8:8:8 little endian */
#define GBM_FORMAT_XBGR8888    __gbm_fourcc_code('X', 'B', '2', '4') /* [31:0] x:B:G:R 8:8:8:8 little endian */
#define GBM_FORMAT_RGBX8888    __gbm_fourcc_code('R', 'X', '2', '4') /* [31:0] R:G:B:x 8:8:8:8 little endian */
#define GBM_FORMAT_BGRX8888    __gbm_fourcc_code('B', 'X', '2', '4') /* [31:0] B:G:R:x 8:8:8:8 little endian */

#define GBM_FORMAT_ARGB8888    __gbm_fourcc_code('A', 'R', '2', '4') /* [31:0] A:R:G:B 8:8:8:8 little endian */
#define GBM_FORMAT_ABGR8888    __gbm_fourcc_code('A', 'B', '2', '4') /* [31:0] A:B:G:R 8:8:8:8 little endian */
#define GBM_FORMAT_RGBA8888    __gbm_fourcc_code('R', 'A', '2', '4') /* [31:0] R:G:B:A 8:8:8:8 little endian */
#define GBM_FORMAT_BGRA8888    __gbm_fourcc_code('B', 'A', '2', '4') /* [31:0] B:G:R:A 8:8:8:8 little endian */

#define GBM_FORMAT_XRGB2101010 __gbm_fourcc_code('X', 'R', '3', '0') /* [31:0] x:R:G:B 2:10:10:10 little endian */
#define GBM_FORMAT_XBGR2101010 __gbm_fourcc_code('X', 'B', '3', '0') /* [31:0] x:B:G:R 2:10:10:10 little endian */
#define GBM_FORMAT_RGBX1010102 __gbm_fourcc_code('R', 'X', '3', '0') /* [31:0] R:G:B:x 10:10:10:2 little endian */
#define GBM_FORMAT_BGRX1010102 __gbm_fourcc_code('B', 'X', '3', '0') /* [31:0] B:G:R:x 10:10:10:2 little endian */

#define GBM_FORMAT_ARGB2101010 __gbm_fourcc_code('A', 'R', '3', '0') /* [31:0] A:R:G:B 2:10:10:10 little endian */
#define GBM_FORMAT_ABGR2101010 __gbm_fourcc_code('A', 'B', '3', '0') /* [31:0] A:B:G:R 2:10:10:10 little endian */
#define GBM_FORMAT_RGBA1010102 __gbm_fourcc_code('R', 'A', '3', '0') /* [31:0] R:G:B:A 10:10:10:2 little endian */
#define GBM_FORMAT_BGRA1010102 __gbm_fourcc_code('B', 'A', '3', '0') /* [31:0] B:G:R:A 10:10:10:2 little endian */

/* packed YCbCr */
#define GBM_FORMAT_YUYV        __gbm_fourcc_code('Y', 'U', 'Y', 'V') /* [31:0] Cr0:Y1:Cb0:Y0 8:8:8:8 little endian */
#define GBM_FORMAT_YVYU        __gbm_fourcc_code('Y', 'V', 'Y', 'U') /* [31:0] Cb0:Y1:Cr0:Y0 8:8:8:8 little endian */
#define GBM_FORMAT_UYVY        __gbm_fourcc_code('U', 'Y', 'V', 'Y') /* [31:0] Y1:Cr0:Y0:Cb0 8:8:8:8 little endian */
#define GBM_FORMAT_VYUY        __gbm_fourcc_code('V', 'Y', 'U', 'Y') /* [31:0] Y1:Cb0:Y0:Cr0 8:8:8:8 little endian */

#define GBM_FORMAT_AYUV        __gbm_fourcc_code('A', 'Y', 'U', 'V') /* [31:0] A:Y:Cb:Cr 8:8:8:8 little endian */

/*
 * 2 plane YCbCr
 * index 0 = Y plane, [7:0] Y
 * index 1 = Cr:Cb plane, [15:0] Cr:Cb little endian
 * or
 * index 1 = Cb:Cr plane, [15:0] Cb:Cr little endian
 */
#define GBM_FORMAT_NV12        __gbm_fourcc_code('N', 'V', '1', '2') /* 2x2 subsampled Cr:Cb plane */
#define GBM_FORMAT_NV21        __gbm_fourcc_code('N', 'V', '2', '1') /* 2x2 subsampled Cb:Cr plane */
#define GBM_FORMAT_NV16        __gbm_fourcc_code('N', 'V', '1', '6') /* 2x1 subsampled Cr:Cb plane */
#define GBM_FORMAT_NV61        __gbm_fourcc_code('N', 'V', '6', '1') /* 2x1 subsampled Cb:Cr plane */

/*
 * 3 plane YCbCr
 * index 0: Y plane, [7:0] Y
 * index 1: Cb plane, [7:0] Cb
 * index 2: Cr plane, [7:0] Cr
 * or
 * index 1: Cr plane, [7:0] Cr
 * index 2: Cb plane, [7:0] Cb
 */
#define GBM_FORMAT_YUV410      __gbm_fourcc_code('Y', 'U', 'V', '9') /* 4x4 subsampled Cb (1) and Cr (2) planes */
#define GBM_FORMAT_YVU410      __gbm_fourcc_code('Y', 'V', 'U', '9') /* 4x4 subsampled Cr (1) and Cb (2) planes */
#define GBM_FORMAT_YUV411      __gbm_fourcc_code('Y', 'U', '1', '1') /* 4x1 subsampled Cb (1) and Cr (2) planes */
#define GBM_FORMAT_YVU411      __gbm_fourcc_code('Y', 'V', '1', '1') /* 4x1 subsampled Cr (1) and Cb (2) planes */
#define GBM_FORMAT_YUV420      __gbm_fourcc_code('Y', 'U', '1', '2') /* 2x2 subsampled Cb (1) and Cr (2) planes */
#define GBM_FORMAT_YVU420      __gbm_fourcc_code('Y', 'V', '1', '2') /* 2x2 subsampled Cr (1) and Cb (2) planes */
#define GBM_FORMAT_YUV422      __gbm_fourcc_code('Y', 'U', '1', '6') /* 2x1 subsampled Cb (1) and Cr (2) planes */
#define GBM_FORMAT_YVU422      __gbm_fourcc_code('Y', 'V', '1', '6') /* 2x1 subsampled Cr (1) and Cb (2) planes */
#define GBM_FORMAT_YUV444      __gbm_fourcc_code('Y', 'U', '2', '4') /* non-subsampled Cb (1) and Cr (2) planes */
#define GBM_FORMAT_YVU444      __gbm_fourcc_code('Y', 'V', '2', '4') /* non-subsampled Cr (1) and Cb (2) planes */

/**
 * Flags to indicate the intended use for the buffer - these are passed into
 * gbm_bo_create(). The caller must set the union of all the flags that are
 * appropriate
 *
 * \sa Use gbm_device_is_format_supported() to check if the combination of format
 * and use flags are supported
 */
enum gbm_bo_flags {
   /**
    * Buffer is going to be presented to the screen using an API such as KMS
    */
   GBM_BO_USE_SCANOUT      = (1 << 0),
   /**
    * Buffer is going to be used as cursor
    */
   GBM_BO_USE_CURSOR       = (1 << 1),
   /**
    * Deprecated
    */
   GBM_BO_USE_CURSOR_64X64 = GBM_BO_USE_CURSOR,
   /**
    * Buffer is to be used for rendering - for example it is going to be used
    * as the storage for a color buffer
    */
   GBM_BO_USE_RENDERING    = (1 << 2),
   /**
    * Buffer can be used for gbm_bo_write.  This is guaranteed to work
    * with GBM_BO_USE_CURSOR. but may not work for other combinations.
    */
   GBM_BO_USE_WRITE    = (1 << 3),
   /**
    * Buffer is linear, i.e. not tiled.
    */
   GBM_BO_USE_LINEAR = (1 << 4),
};

int
gbm_device_get_fd(struct gbm_device *gbm);

const char *
gbm_device_get_backend_name(struct gbm_device *gbm);

int
gbm_device_is_format_supported(struct gbm_device *gbm,
                               uint32_t format, uint32_t usage);

int
gbm_device_get_format_modifier_plane_count(struct gbm_device *gbm,
                                           uint32_t format,
                                           uint64_t modifier);

void
gbm_device_destroy(struct gbm_device *gbm);

struct gbm_device *
gbm_create_device(int fd);

int
get_drm_fd(void);

struct gbm_bo *
gbm_bo_create(struct gbm_device *gbm,
              uint32_t width, uint32_t height,
              uint32_t format, uint32_t flags);

struct gbm_bo *
gbm_bo_create_with_modifiers(struct gbm_device *gbm,
                             uint32_t width, uint32_t height,
                             uint32_t format,
                             const uint64_t *modifiers,
                             const unsigned int count);

#define GBM_BO_IMPORT_WL_BUFFER         0x5501
#define GBM_BO_IMPORT_EGL_IMAGE         0x5502
#define GBM_BO_IMPORT_FD                0x5503
#define GBM_BO_IMPORT_FD_MODIFIER       0x5504

struct gbm_import_fd_data {
   int fd;
   uint32_t width;
   uint32_t height;
   uint32_t stride;
   uint32_t format;
};

#define GBM_MAX_PLANES 4

struct gbm_import_fd_modifier_data {
   uint32_t width;
   uint32_t height;
   uint32_t format;
   uint32_t num_fds;
   int fds[GBM_MAX_PLANES];
   int strides[GBM_MAX_PLANES];
   int offsets[GBM_MAX_PLANES];
   uint64_t modifier;
};

struct gbm_bo *
gbm_bo_import(struct gbm_device *gbm, uint32_t type,
              void *buffer, uint32_t usage);

/**
 * Flags to indicate the type of mapping for the buffer - these are
 * passed into gbm_bo_map(). The caller must set the union of all the
 * flags that are appropriate.
 *
 * These flags are independent of the GBM_BO_USE_* creation flags. However,
 * mapping the buffer may require copying to/from a staging buffer.
 *
 * See also: pipe_transfer_usage
 */
enum gbm_bo_transfer_flags {
   /**
    * Buffer contents read back (or accessed directly) at transfer
    * create time.
    */
   GBM_BO_TRANSFER_READ       = (1 << 0),
   /**
    * Buffer contents will be written back at unmap time
    * (or modified as a result of being accessed directly).
    */
   GBM_BO_TRANSFER_WRITE      = (1 << 1),
   /**
    * Read/modify/write
    */
   GBM_BO_TRANSFER_READ_WRITE = (GBM_BO_TRANSFER_READ | GBM_BO_TRANSFER_WRITE),
};

void *
gbm_bo_map(struct gbm_bo *bo,
           uint32_t x, uint32_t y, uint32_t width, uint32_t height,
           uint32_t flags, uint32_t *stride, void **map_data);

void
gbm_bo_unmap(struct gbm_bo *bo, void *map_data);

uint32_t
gbm_bo_get_width(struct gbm_bo *bo);

uint32_t
gbm_bo_get_height(struct gbm_bo *bo);

uint32_t
gbm_bo_get_stride(struct gbm_bo *bo);

uint32_t
gbm_bo_get_stride_for_plane(struct gbm_bo *bo, int plane);

uint32_t
gbm_bo_get_format(struct gbm_bo *bo);

uint32_t
gbm_bo_get_bpp(struct gbm_bo *bo);

uint32_t
gbm_bo_get_offset(struct gbm_bo *bo, int plane);

struct gbm_device *
gbm_bo_get_device(struct gbm_bo *bo);

union gbm_bo_handle
gbm_bo_get_handle(struct gbm_bo *bo);

int
gbm_bo_get_fd(struct gbm_bo *bo);

int
gbm_bo_get_fd_for_plane(struct gbm_bo *bo, int plane);

uint64_t
gbm_bo_get_modifier(struct gbm_bo *bo);

int
gbm_bo_get_plane_count(struct gbm_bo *bo);

union gbm_bo_handle
gbm_bo_get_handle_for_plane(struct gbm_bo *bo, int plane);

int
gbm_bo_write(struct gbm_bo *bo, const void *buf, size_t count);

void
gbm_bo_set_user_data(struct gbm_bo *bo, void *data,
                     void (*destroy_user_data)(struct gbm_bo *, void *));

void *
gbm_bo_get_user_data(struct gbm_bo *bo);

void
gbm_bo_destroy(struct gbm_bo *bo);

struct gbm_surface *
gbm_surface_create(struct gbm_device *gbm,
                   uint32_t width, uint32_t height,
                   uint32_t format, uint32_t flags);

struct gbm_surface *
gbm_surface_create_with_modifiers(struct gbm_device *gbm,
                                  uint32_t width, uint32_t height,
                                  uint32_t format,
                                  const uint64_t *modifiers,
                                  const unsigned int count);
int
gbm_surface_needs_lock_front_buffer(struct gbm_surface *surface);

struct gbm_bo *
gbm_surface_lock_front_buffer(struct gbm_surface *surface);

void
gbm_surface_release_buffer(struct gbm_surface *surface, struct gbm_bo *bo);

int
gbm_surface_has_free_buffers(struct gbm_surface *surface);

int
gbm_surface_get_in_fence_fd(struct gbm_surface *surface);

void
gbm_surface_set_in_fence_fd(struct gbm_surface *surface, int fd);

void
gbm_surface_set_sync_post(struct gbm_surface *surface, int sync_post);

void
gbm_surface_destroy(struct gbm_surface *surface);

#ifdef __cplusplus
}
#endif

#endif

[nandra]

@clopez seems it's coming from this recipe: https://github.com/STMicroelectronics/meta-st-stm32mp/tree/kirkstone/recipes-graphics/gcnano-userland

Specifically from: gcnano-userland-multi-binary-stm32mp.bb recipe.

[nandra]

I poked a bit and overcome this error but when start browser it says:

Failed to move cursor on screen DSI1: -13
Failed to move cursor on screen DSI1: -13
qt.qpa.input: xkbcommon not available, not performing key mapping
QQmlApplicationEngine failed to load component
qrc:/main.qml:3:1: module "org.wpewebkit.qtwpe" is not installed
root@stm32:~# find / -name *wpewebkit*
/usr/lib/qt5/qml/org/wpewebkit
root@stm32:~# ls -la /usr/lib/qt5/qml/org/wpewebkit
drwxr-xr-x    3 root     root          1024 Sep 20 15:07 .
drwxr-xr-x    3 root     root          1024 Sep 20 15:07 ..
drwxr-xr-x    2 root     root          1024 Sep 20 15:07 qtwpe
root@stm32:~# ls -la /usr/lib/qt5/qml/org/wpewebkit/qtwpe/
drwxr-xr-x    2 root     root          1024 Sep 20 15:07 .
drwxr-xr-x    3 root     root          1024 Sep 20 15:07 ..
-rwxr-xr-x    1 root     root         43332 Sep 20 15:07 libqtwpe.so
-rw-r--r--    1 root     root            40 Sep 20 15:07 qmldir```

and qtwpe exists as show above. Any ideas? Thanks.

[nandra]

ok resolved by: export QML2_IMPORT_PATH='/usr/lib/qt5/qml/'

but I can see only white background without any webpage loaded.

[psaavedra]

The first comment in the issue makes reference to the DRM cog platform but at some point the issue turned to QT. What is the platform where you want to run Cog?

[nandra]

@psaavedra sorry for confusion. I've basically want to compile qt-wpe-webkit-browser and first hit issue with compiling cog. Then was able to resolve it and have another issue with running browser. Should I close this and create other one pls? Thanks.

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