kmscube does not compile

rdorsch · August 21, 2020 at 5:30 PM

I tried to build kmscube but the build fails with a duplicate definition of the symbol gl. I probably miss something, but I have no idea what.

Code

rd@h370-wlan:~/tmp.nobackup/git/LibreELEC.tv$ cat ~/.libreelec/options
ADDITIONAL_PACKAGES="$ADDITIONAL_PACKAGES kmscube"
rd@h370-wlan:~/tmp.nobackup/git/LibreELEC.tv$ PROJECT=NXP DEVICE=iMX6 ARCH=arm UBOOT_SYSTEM=cubox-q make image
[...]

<<< kmscube:target seq 193 <<<
UNPACK      kmscube
BUILD      kmscube (target)
TOOLCHAIN      autotools
AUTORECONF      kmscube
autoreconf: Entering directory `/home/rd/tmp.nobackup/git/LibreELEC.tv/build.LibreELEC-iMX6.arm-9.80-devel/build/kmscube-98f31bf'
autoreconf: configure.ac: not using Gettext
autoreconf: running: /home/rd/tmp.nobackup/git/LibreELEC.tv/build.LibreELEC-iMX6.arm-9.80-devel/toolchain/bin/aclocal -I /home/rd/tmp.nobackup/git/LibreELEC.tv/build.LibreELEC-iMX6.arm-9.80-devel/toolchain/armv7a-libreelec-linux-gnueabihf/sysroot/usr/share/aclocal -I /home/rd/tmp.nobackup/git/LibreELEC.tv/build.LibreELEC-iMX6.arm-9.80-devel/toolchain/armv7a-libreelec-linux-gnueabihf/sysroot/usr/share/aclocal --force
autoreconf: configure.ac: tracing
autoreconf: configure.ac: creating directory build-aux
autoreconf: configure.ac: not using Libtool
autoreconf: running: /home/rd/tmp.nobackup/git/LibreELEC.tv/build.LibreELEC-iMX6.arm-9.80-devel/toolchain/bin/autoconf --include=/home/rd/tmp.nobackup/git/LibreELEC.tv/build.LibreELEC-iMX6.arm-9.80-devel/toolchain/armv7a-libreelec-linux-gnueabihf/sysroot/usr/share/aclocal --force
autoreconf: configure.ac: not using Autoheader
autoreconf: running: /home/rd/tmp.nobackup/git/LibreELEC.tv/build.LibreELEC-iMX6.arm-9.80-devel/toolchain/bin/automake --add-missing --copy --force-missing
configure.ac:32: installing 'build-aux/compile'
configure.ac:30: installing 'build-aux/install-sh'
configure.ac:30: installing 'build-aux/missing'
Makefile.am: installing 'build-aux/depcomp'
autoreconf: Leaving directory `/home/rd/tmp.nobackup/git/LibreELEC.tv/build.LibreELEC-iMX6.arm-9.80-devel/build/kmscube-98f31bf'
Executing (target): /home/rd/tmp.nobackup/git/LibreELEC.tv/build.LibreELEC-iMX6.arm-9.80-devel/build/kmscube-98f31bf/configure --host=armv7a-libreelec-linux-gnueabihf --build=x86_64-linux-gnu --prefix=/usr --bindir=/usr/bin --sbindir=/usr/sbin --sysconfdir=/etc --libdir=/usr/lib --libexecdir=/usr/lib --localstatedir=/var --disable-static --enable-shared
configure: WARNING: unrecognized options: --disable-static, --enable-shared
checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking for armv7a-libreelec-linux-gnueabihf-strip... /home/rd/tmp.nobackup/git/LibreELEC.tv/build.LibreELEC-iMX6.arm-9.80-devel/toolchain/bin/armv7a-libreelec-linux-gnueabihf-strip
checking for a thread-safe mkdir -p... /bin/mkdir -p
checking for gawk... gawk
checking whether make sets $(MAKE)... yes
checking whether make supports nested variables... yes
checking for armv7a-libreelec-linux-gnueabihf-gcc... /home/rd/tmp.nobackup/git/LibreELEC.tv/build.LibreELEC-iMX6.arm-9.80-devel/toolchain/bin/armv7a-libreelec-linux-gnueabihf-gcc
checking whether the C compiler works... yes
checking for C compiler default output file name... a.out
checking for suffix of executables...
checking whether we are cross compiling... yes
checking for suffix of object files... o
checking whether we are using the GNU C compiler... yes
checking whether /home/rd/tmp.nobackup/git/LibreELEC.tv/build.LibreELEC-iMX6.arm-9.80-devel/toolchain/bin/armv7a-libreelec-linux-gnueabihf-gcc accepts -g... yes
checking for /home/rd/tmp.nobackup/git/LibreELEC.tv/build.LibreELEC-iMX6.arm-9.80-devel/toolchain/bin/armv7a-libreelec-linux-gnueabihf-gcc option to accept ISO C89... none needed
checking whether /home/rd/tmp.nobackup/git/LibreELEC.tv/build.LibreELEC-iMX6.arm-9.80-devel/toolchain/bin/armv7a-libreelec-linux-gnueabihf-gcc understands -c and -o together... yes
checking for style of include used by make... GNU
checking dependency style of /home/rd/tmp.nobackup/git/LibreELEC.tv/build.LibreELEC-iMX6.arm-9.80-devel/toolchain/bin/armv7a-libreelec-linux-gnueabihf-gcc... gcc3
checking whether make supports nested variables... (cached) yes
checking pkg-config is at least version 0.9.0... yes
checking for libdrm >= 2.4.71... yes
checking for gbm >= 13.0... yes
checking for egl... yes
checking for glesv2... yes
checking for gstreamer-1.0 >= 1.6.0 gstreamer-plugins-base-1.0 >= 1.6.0 gstreamer-app-1.0 >= 1.6.0 gstreamer-allocators-1.0 >= 1.6.0 gstreamer-video-1.0 >= 1.6.0 glib-2.0... no
checking that generated files are newer than configure... done
configure: creating ./config.status
config.status: creating Makefile
config.status: executing depfiles commands
configure: WARNING: unrecognized options: --disable-static, --enable-shared
Executing (target): make
make[1]: Entering directory '/home/rd/tmp.nobackup/git/LibreELEC.tv/build.LibreELEC-iMX6.arm-9.80-devel/build/kmscube-98f31bf/.armv7a-libreelec-linux-gnueabihf'
CC       kmscube-common.o
CC       kmscube-drm-legacy.o
CC       kmscube-esTransform.o
CC       kmscube-frame-512x512-NV12.o
CC       kmscube-frame-512x512-RGBA.o
CC       kmscube-kmscube.o
CC       kmscube-drm-common.o
CC       kmscube-drm-atomic.o
CC       kmscube-cube-tex.o
CC       kmscube-cube-smooth.o
CCLD     kmscube
/home/rd/tmp.nobackup/git/LibreELEC.tv/build.LibreELEC-iMX6.arm-9.80-devel/toolchain/lib/gcc/armv7a-libreelec-linux-gnueabihf/10.2.0/../../../../armv7a-libreelec-linux-gnueabihf/bin/ld.gold: error: kmscube-cube-tex.o: multiple definition of 'gl'
/home/rd/tmp.nobackup/git/LibreELEC.tv/build.LibreELEC-iMX6.arm-9.80-devel/toolchain/lib/gcc/armv7a-libreelec-linux-gnueabihf/10.2.0/../../../../armv7a-libreelec-linux-gnueabihf/bin/ld.gold: kmscube-cube-smooth.o: previous definition here
collect2: error: ld returned 1 exit status
make[1]: *** [Makefile:423: kmscube] Error 1
make[1]: Leaving directory '/home/rd/tmp.nobackup/git/LibreELEC.tv/build.LibreELEC-iMX6.arm-9.80-devel/build/kmscube-98f31bf/.armv7a-libreelec-linux-gnueabihf'
FAILURE: scripts/build kmscube:target during make_target (default)
*********** FAILED COMMAND ***********
make ${PKG_MAKE_OPTS_TARGET}
**************************************
*********** FAILED COMMAND ***********
${SCRIPTS}/build "${1}" "${PARENT_PKG}"
**************************************
FAILURE: scripts/install kmscube:target has failed!


The following log for this failure is available:
/home/rd/tmp.nobackup/git/LibreELEC.tv/build.LibreELEC-iMX6.arm-9.80-devel/.threads/logs/193.log


>>> kmscube:target seq 193 >>>
[188/269] [FAIL] install kmscube:target


The following log for this failure is available:
/home/rd/tmp.nobackup/git/LibreELEC.tv/build.LibreELEC-iMX6.arm-9.80-devel/.threads/logs/193.log


Parallel build failure - see log for details. Time of failure: Fri Aug 21 17:25:03 CEST 2020

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Output of objdump for the two object files:

Code

rd@h370-wlan:~/tmp.nobackup/git/LibreELEC.tv/build.LibreELEC-iMX6.arm-9.80-devel/build/kmscube-98f31bf/.armv7a-libreelec-linux-gnueabihf$ objdump -t kmscube-cube-tex.o


kmscube-cube-tex.o:     file format elf32-little


SYMBOL TABLE:
00000000 l    df *ABS*  00000000 cube-tex.c
00000000 l    d  .text  00000000 .text
00000000 l    d  .data  00000000 .data
00000000 l    d  .bss   00000000 .bss
00000000 l       .text  00000000 $a
00000000 l     F .text  0000022c draw_cube_tex
00000000 l       .bss   00000000 .LANCHOR0
00000218 l       .text  00000000 $d
0000022c l       .text  00000000 $a
0000022c l     F .text  00000104 get_fd_y
00000330 l     F .text  00000100 get_fd_uv
0000042c l       .text  00000000 $d
00000000 l    d  .rodata.str1.4 00000000 .rodata.str1.4
00000000 l       .rodata.str1.4 00000000 $d
00000000 l       .rodata.str1.4 00000000 .LC0
00000424 l       .rodata.str1.4 00000000 .LC1
000005fc l       .rodata.str1.4 00000000 .LC2
00000610 l       .rodata.str1.4 00000000 .LC3
00000618 l       .rodata.str1.4 00000000 .LC4
00000638 l       .rodata.str1.4 00000000 .LC5
0000064c l       .rodata.str1.4 00000000 .LC6
00000a38 l       .rodata.str1.4 00000000 .LC7
00000a44 l       .rodata.str1.4 00000000 .LC8
00000a50 l       .rodata.str1.4 00000000 .LC9
00000a5c l       .rodata.str1.4 00000000 .LC10
00000a6c l       .rodata.str1.4 00000000 .LC11
00000a88 l       .rodata.str1.4 00000000 .LC12
00000a98 l       .rodata.str1.4 00000000 .LC13
00000aa0 l       .rodata.str1.4 00000000 .LC14
00000aa8 l       .rodata.str1.4 00000000 .LC15
00000ab0 l       .rodata.str1.4 00000000 .LC16
00000b1c l       .rodata.str1.4 00000000 .LC17
00000b20 l       .rodata.str1.4 00000000 .LC18
00000b28 l       .rodata.str1.4 00000000 .LC19
00000b30 l       .rodata.str1.4 00000000 .LC20
00000b40 l       .rodata.str1.4 00000000 .LC21
00000430 l       .text  00000000 $a
00000000 l       .rodata        00000000 .LANCHOR1
00000000 l       .data  00000000 .LANCHOR2
0000069c l       .text  00000000 $d
000006b0 l       .text  00000000 $a
00000de8 l       .text  00000000 $d
00000000 l    d  .rodata        00000000 .rodata
00000000 l       .rodata        00000000 $d
00000000 l     O .rodata        00000120 vVertices
00000120 l     O .rodata        00000120 vNormals
00000240 l     O .rodata        0000000e __PRETTY_FUNCTION__.2
00000250 l     O .rodata        00000013 __PRETTY_FUNCTION__.1
00000264 l     O .rodata        00000013 __PRETTY_FUNCTION__.0
00000278 l     O .rodata        00000009 __PRETTY_FUNCTION__.3
00000000 l       .data  00000000 $d
00000000 l       .bss   00000000 $d
00000000 l    d  .debug_info    00000000 .debug_info
00000000 l    d  .debug_abbrev  00000000 .debug_abbrev
00000000 l    d  .debug_loc     00000000 .debug_loc
00000000 l    d  .debug_aranges 00000000 .debug_aranges
00000000 l    d  .debug_ranges  00000000 .debug_ranges
00000000 l    d  .debug_line    00000000 .debug_line
00000000 l    d  .debug_str     00000000 .debug_str
00000000 l    d  .note.GNU-stack        00000000 .note.GNU-stack
00000000 l    d  .debug_frame   00000000 .debug_frame
00000000 l    d  .comment       00000000 .comment
00000000 l    d  .ARM.attributes        00000000 .ARM.attributes
00000000         *UND*  00000000 glClearColor
00000000         *UND*  00000000 glClear
00000000         *UND*  00000000 esMatrixLoadIdentity
00000000         *UND*  00000000 esTranslate
00000000         *UND*  00000000 esRotate
00000000         *UND*  00000000 esFrustum
00000000         *UND*  00000000 esMatrixMultiply
00000000         *UND*  00000000 glUniformMatrix4fv
00000000         *UND*  00000000 glUniformMatrix3fv
00000000         *UND*  00000000 glUniform1i
00000000         *UND*  00000000 glDrawArrays
00000000         *UND*  00000000 raw_512x512_nv12
00000000         *UND*  00000000 gbm_bo_create
00000000         *UND*  00000000 gbm_bo_map
00000000         *UND*  00000000 memcpy
00000000         *UND*  00000000 gbm_bo_unmap
00000000         *UND*  00000000 gbm_bo_get_fd
00000000  w      *UND*  00000000 gbm_bo_get_modifier
00000000         *UND*  00000000 gbm_bo_destroy
00000430 g     F .text  000009d4 init_cube_tex
00000000         *UND*  00000000 init_egl
00000000         *UND*  00000000 create_program
00000000         *UND*  00000000 glBindAttribLocation
00000000         *UND*  00000000 link_program
00000000         *UND*  00000000 glUseProgram
00000000         *UND*  00000000 glGetUniformLocation
00000000         *UND*  00000000 glViewport
00000000         *UND*  00000000 glEnable
00000000         *UND*  00000000 glGenBuffers
00000000         *UND*  00000000 glBindBuffer
00000000         *UND*  00000000 glBufferData
00000000         *UND*  00000000 glBufferSubData
00000000         *UND*  00000000 glVertexAttribPointer
00000000         *UND*  00000000 glEnableVertexAttribArray
00000000         *UND*  00000000 puts
00000000         *UND*  00000000 glGenTextures
00000000         *UND*  00000000 __assert_fail
00000000         *UND*  00000000 glActiveTexture
00000000         *UND*  00000000 glBindTexture
00000000         *UND*  00000000 glTexParameteri
00000000         *UND*  00000000 raw_512x512_rgba
00000000         *UND*  00000000 printf
00000000 g     O .data  000000c0 vTexCoords
000000c0 g     O .data  00000004 egl
00000000 g     O .bss   00000078 gl




rd@h370-wlan:~/tmp.nobackup/git/LibreELEC.tv/build.LibreELEC-iMX6.arm-9.80-devel/build/kmscube-98f31bf/.armv7a-libreelec-linux-gnueabihf$ objdump -t kmscube-cube-smooth.o


kmscube-cube-smooth.o:     file format elf32-little


SYMBOL TABLE:
00000000 l    df *ABS*  00000000 cube-smooth.c
00000000 l    d  .text  00000000 .text
00000000 l    d  .data  00000000 .data
00000000 l    d  .bss   00000000 .bss
00000000 l       .text  00000000 $a
00000000 l     F .text  0000020c draw_cube_smooth
00000000 l       .bss   00000000 .LANCHOR0
000001f8 l       .text  00000000 $d
00000000 l    d  .rodata.str1.4 00000000 .rodata.str1.4
00000000 l       .rodata.str1.4 00000000 $d
00000000 l       .rodata.str1.4 00000000 .LC0
00000124 l       .rodata.str1.4 00000000 .LC1
000004ac l       .rodata.str1.4 00000000 .LC2
000004b8 l       .rodata.str1.4 00000000 .LC3
000004c4 l       .rodata.str1.4 00000000 .LC4
000004d0 l       .rodata.str1.4 00000000 .LC5
000004e0 l       .rodata.str1.4 00000000 .LC6
000004fc l       .rodata.str1.4 00000000 .LC7
0000020c l       .text  00000000 $a
00000000 l       .rodata        00000000 .LANCHOR1
0000042c l       .text  00000000 $d
00000000 l    d  .rodata        00000000 .rodata
00000000 l       .rodata        00000000 $d
00000000 l     O .rodata        00000120 vVertices
00000120 l     O .rodata        00000120 vColors
00000240 l     O .rodata        00000120 vNormals
00000000 l       .bss   00000000 $d
00000000 l    d  .debug_info    00000000 .debug_info
00000000 l    d  .debug_abbrev  00000000 .debug_abbrev
00000000 l    d  .debug_loc     00000000 .debug_loc
00000000 l    d  .debug_aranges 00000000 .debug_aranges
00000000 l    d  .debug_line    00000000 .debug_line
00000000 l    d  .debug_str     00000000 .debug_str
00000000 l    d  .note.GNU-stack        00000000 .note.GNU-stack
00000000 l    d  .debug_frame   00000000 .debug_frame
00000000 l    d  .comment       00000000 .comment
00000000 l    d  .ARM.attributes        00000000 .ARM.attributes
00000000         *UND*  00000000 glClearColor
00000000         *UND*  00000000 glClear
00000000         *UND*  00000000 esMatrixLoadIdentity
00000000         *UND*  00000000 esTranslate
00000000         *UND*  00000000 esRotate
00000000         *UND*  00000000 esFrustum
00000000         *UND*  00000000 esMatrixMultiply
00000000         *UND*  00000000 glUniformMatrix4fv
00000000         *UND*  00000000 glUniformMatrix3fv
00000000         *UND*  00000000 glDrawArrays
0000020c g     F .text  00000228 init_cube_smooth
00000000         *UND*  00000000 init_egl
00000000         *UND*  00000000 create_program
00000000         *UND*  00000000 glBindAttribLocation
00000000         *UND*  00000000 link_program
00000000         *UND*  00000000 glUseProgram
00000000         *UND*  00000000 glGetUniformLocation
00000000         *UND*  00000000 glViewport
00000000         *UND*  00000000 glEnable
00000000         *UND*  00000000 glGenBuffers
00000000         *UND*  00000000 glBindBuffer
00000000         *UND*  00000000 glBufferData
00000000         *UND*  00000000 glBufferSubData
00000000         *UND*  00000000 glVertexAttribPointer
00000000         *UND*  00000000 glEnableVertexAttribArray
00000000 g     O .bss   00000060 gl




rd@h370-wlan:~/tmp.nobackup/git/LibreELEC.tv/build.LibreELEC-iMX6.arm-9.80-devel/build/kmscube-98f31bf/.armv7a-libreelec-linux-gnueabihf$

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Please let me know if anything further information is needed.

Thanks

Rainer

**mglae** · August 22, 2020 at 8:50 AM

Typical -fno-common failure with gcc 10, see Porting to GCC 10 - GNU Project - Free Software Foundation (FSF).

rdorsch · August 26, 2020 at 10:22 AM

Many thanks. Indeed

Diff

rd@h370-wlan:~/tmp.nobackup/git/LibreELEC.tv$ git diff
diff --git a/packages/graphics/kmscube/package.mk b/packages/graphics/kmscube/package.mk
index f12bed34cd..12060c68c2 100644
--- a/packages/graphics/kmscube/package.mk
+++ b/packages/graphics/kmscube/package.mk
@@ -17,3 +17,10 @@ elif [ "$OPENGL_SUPPORT" = "yes" ]; then
echo "kmscube only supports OpenGLESv2"
exit 0
fi
+
+pre_configure_target() {
+  cd $PKG_BUILD
+  rm -rf .$TARGET_NAME
+  # check if this flag is still needed when this package is updated
+  export CFLAGS="$CFLAGS -fcommon"
+}
rd@h370-wlan:~/tmp.nobackup/git/LibreELEC.tv$

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fixes it (until it is resolved by upstream). Since I am not familiar with libreelec's build system, can anybody confirm that this is the right way to do this or tell what should be done differently?

thanks

rainer

kmscube does not compile

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