* [Buildroot] [git commit] package/irrlicht: disable bundled libpng NEON support
@ 2020-05-09 20:23 Thomas Petazzoni
2020-05-10 20:34 ` Peter Korsgaard
0 siblings, 1 reply; 2+ messages in thread
From: Thomas Petazzoni @ 2020-05-09 20:23 UTC (permalink / raw)
To: buildroot
commit: https://git.buildroot.net/buildroot/commit/?id=bf5f4f417a9e6e7eed5ea6a99c26583958890515
branch: https://git.buildroot.net/buildroot/commit/?id=refs/heads/master
Irrlicht fail to detect properly the NEON support on aarch64 or ARM with NEON FPU support.
While linking an application with libIrrlicht.so, we get an undefined reference to
png_init_filter_functions_neon.
Some files are missing in the libpng bundled in Irrlicht, in particular arm/arm_init.c [1],
so disable NEON support completely.
This can be reproduced by building minetest using this defconfig for aarch64:
BR2_aarch64=y
BR2_TOOLCHAIN_EXTERNAL=y
BR2_PACKAGE_MINETEST=y
BR2_PACKAGE_MINETEST_CLIENT=y
BR2_PACKAGE_MINETEST_SERVER=y
BR2_PACKAGE_MESA3D=y
BR2_PACKAGE_MESA3D_GALLIUM_DRIVER_SWRAST=y
BR2_PACKAGE_MESA3D_OPENGL_GLX=y
BR2_PACKAGE_XORG7=y
Or for ARM with NEON FPU support:
BR2_arm=y
BR2_cortex_a15=y
BR2_ARM_FPU_NEON=y
BR2_TOOLCHAIN_EXTERNAL=y
BR2_PACKAGE_MINETEST=y
BR2_PACKAGE_MINETEST_CLIENT=y
BR2_PACKAGE_MINETEST_SERVER=y
BR2_PACKAGE_MESA3D=y
BR2_PACKAGE_MESA3D_GALLIUM_DRIVER_SWRAST=y
BR2_PACKAGE_MESA3D_OPENGL_GLX=y
BR2_PACKAGE_XORG7=y
[1] https://github.com/glennrp/libpng/tree/v1.6.37/arm
Signed-off-by: Romain Naour <romain.naour@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
---
package/irrlicht/irrlicht.mk | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/package/irrlicht/irrlicht.mk b/package/irrlicht/irrlicht.mk
index a1e190d98d..bd82815cde 100644
--- a/package/irrlicht/irrlicht.mk
+++ b/package/irrlicht/irrlicht.mk
@@ -38,6 +38,13 @@ ifeq ($(BR2_STATIC_LIBS),)
IRRLICHT_CONF_OPTS += sharedlib
endif
+# Irrlicht fail to detect properly the NEON support on aarch64 or ARM with NEON FPU support.
+# While linking an application with libIrrlicht.so, we get an undefined reference to
+# png_init_filter_functions_neon.
+# Some files are missing in the libpng bundled in Irrlicht, in particular arm/arm_init.c,
+# so disable NEON support completely.
+IRRLICHT_CONF_OPTS += CPPFLAGS="$(TARGET_CPPFLAGS) -DPNG_ARM_NEON_OPT=0"
+
define IRRLICHT_BUILD_CMDS
$(TARGET_MAKE_ENV)
$(MAKE) -C $(@D)/$(IRRLICHT_SUBDIR) $(IRRLICHT_CONF_OPTS)
^ permalink raw reply related [flat|nested] 2+ messages in thread
* [Buildroot] [git commit] package/irrlicht: disable bundled libpng NEON support
2020-05-09 20:23 [Buildroot] [git commit] package/irrlicht: disable bundled libpng NEON support Thomas Petazzoni
@ 2020-05-10 20:34 ` Peter Korsgaard
0 siblings, 0 replies; 2+ messages in thread
From: Peter Korsgaard @ 2020-05-10 20:34 UTC (permalink / raw)
To: buildroot
>>>>> "Thomas" == Thomas Petazzoni <thomas.petazzoni@bootlin.com> writes:
> commit: https://git.buildroot.net/buildroot/commit/?id=bf5f4f417a9e6e7eed5ea6a99c26583958890515
> branch: https://git.buildroot.net/buildroot/commit/?id=refs/heads/master
> Irrlicht fail to detect properly the NEON support on aarch64 or ARM with NEON FPU support.
> While linking an application with libIrrlicht.so, we get an undefined reference to
> png_init_filter_functions_neon.
> Some files are missing in the libpng bundled in Irrlicht, in particular arm/arm_init.c [1],
> so disable NEON support completely.
> This can be reproduced by building minetest using this defconfig for aarch64:
> BR2_aarch64=y
> BR2_TOOLCHAIN_EXTERNAL=y
> BR2_PACKAGE_MINETEST=y
> BR2_PACKAGE_MINETEST_CLIENT=y
> BR2_PACKAGE_MINETEST_SERVER=y
> BR2_PACKAGE_MESA3D=y
> BR2_PACKAGE_MESA3D_GALLIUM_DRIVER_SWRAST=y
> BR2_PACKAGE_MESA3D_OPENGL_GLX=y
> BR2_PACKAGE_XORG7=y
> Or for ARM with NEON FPU support:
> BR2_arm=y
> BR2_cortex_a15=y
> BR2_ARM_FPU_NEON=y
> BR2_TOOLCHAIN_EXTERNAL=y
> BR2_PACKAGE_MINETEST=y
> BR2_PACKAGE_MINETEST_CLIENT=y
> BR2_PACKAGE_MINETEST_SERVER=y
> BR2_PACKAGE_MESA3D=y
> BR2_PACKAGE_MESA3D_GALLIUM_DRIVER_SWRAST=y
> BR2_PACKAGE_MESA3D_OPENGL_GLX=y
> BR2_PACKAGE_XORG7=y
> [1] https://github.com/glennrp/libpng/tree/v1.6.37/arm
> Signed-off-by: Romain Naour <romain.naour@gmail.com>
> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Committed to 2020.02.x, thanks.
--
Bye, Peter Korsgaard
^ permalink raw reply [flat|nested] 2+ messages in thread
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2020-05-09 20:23 [Buildroot] [git commit] package/irrlicht: disable bundled libpng NEON support Thomas Petazzoni
2020-05-10 20:34 ` Peter Korsgaard
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