2ba72e02b0
The pixman ARM optimized code assumes that ARM instructions are available. Unfortunately, the configure.ac checks do not detect that the platform is Thumb-only for Cortex-M builds, so it enables the ARM optimizations, leading to failures like: error: /home/test/autobuild/run/instance-3/output/host/usr/arm-buildroot-uclinux-uclibcgnueabi/sysroot/usr/lib/libpixman-1.a(pixman-arm-simd-asm-scaled.o): Conflicting CPU architectures 13/1 When building programs linked with pixman on Thumb-only architectures. This is due to the fact that some object files in libpixman-1.a are built for the ARM instruction set. To resolve this, we give better hints to the pixman configure script about which ARM optimizations to use: the ARM SIMD optimizations need at least a CPU that supports ARM instructions, and obviously the ARM NEON optimizations need NEON support. Fixes: http://autobuild.buildroot.net/results/54bee2ce382fcd067965d30f758f9d15514478d9/ Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Reviewed-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be> [Thomas: add a comment above the --enable-arm-simd option, as suggested by Arnout.] Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
55 lines
1.7 KiB
Makefile
55 lines
1.7 KiB
Makefile
################################################################################
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#
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# pixman
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#
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################################################################################
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PIXMAN_VERSION = 0.34.0
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PIXMAN_SOURCE = pixman-$(PIXMAN_VERSION).tar.bz2
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PIXMAN_SITE = http://xorg.freedesktop.org/releases/individual/lib
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PIXMAN_LICENSE = MIT
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PIXMAN_LICENSE_FILES = COPYING
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PIXMAN_INSTALL_STAGING = YES
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PIXMAN_DEPENDENCIES = host-pkgconf
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HOST_PIXMAN_DEPENDENCIES = host-pkgconf
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# For 0001-Disable-tests.patch
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PIXMAN_AUTORECONF = YES
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# don't build gtk based demos
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PIXMAN_CONF_OPTS = --disable-gtk
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# The ARM SIMD code from pixman requires a recent enough ARM core, but
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# there is a runtime CPU check that makes sure it doesn't get used if
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# the HW doesn't support it. The only case where the ARM SIMD code
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# cannot be *built* at all is when the platform doesn't support ARM
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# instructions at all, so we have to disable that explicitly.
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ifeq ($(BR2_ARM_CPU_HAS_ARM),y)
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PIXMAN_CONF_OPTS += --enable-arm-simd
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else
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PIXMAN_CONF_OPTS += --disable-arm-simd
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endif
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ifeq ($(BR2_ARM_CPU_HAS_ARM)$(BR2_ARM_CPU_HAS_NEON),yy)
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PIXMAN_CONF_OPTS += --enable-arm-neon
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else
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PIXMAN_CONF_OPTS += --disable-arm-neon
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endif
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# disable iwmmxt support for CPU's that don't have
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# this feature
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ifneq ($(BR2_iwmmxt),y)
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PIXMAN_CONF_OPTS += --disable-arm-iwmmxt
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endif
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# toolchain gets confused about TLS access through GOT (PIC), so disable TLS
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# movhi r4, %got_hiadj(%tls_ldo(fast_path_cache))
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# {standard input}:172: Error: bad expression
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ifeq ($(BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_NIOSII),y)
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PIXMAN_CONF_ENV += CFLAGS="$(TARGET_CFLAGS) -DPIXMAN_NO_TLS"
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endif
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$(eval $(autotools-package))
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$(eval $(host-autotools-package))
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