kumquat-buildroot/package/libunwind/Config.in
Thomas Petazzoni 68d399fbdd libunwind: fix architecture dependencies
Due to a misplaced parenthesis, the libunwind dependency were
incorrect. Indeed, they were of the form:

 default y if LIBC_TYPE && (arm dependency) || (list of other architectures)

Which meant that that the LIBC_TYPE dependency was not taken into
account for the "other architectures". This commit changes that to:

 default y if LIBC_TYPE && ((arm dependency) || list of other architectures)

Without this fix, libunwind can be selected for example on
PowerPC/uClibc configurations, while only PowerPC/glibc should be
allowed. This fixes:

  http://autobuild.buildroot.net/results/96c53ff240dcd68fcc9e3d32c4026c9886edcbe7/

Similarly, it also fixes cases where SuperH/uClibc was allowed, while
only SuperH/glibc should be allowed. This fixes:

  http://autobuild.buildroot.net/results/95a6cca21aea9914ba8bb3f571760fc054c53ecd/

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Reviewed-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
2016-08-07 22:58:32 +02:00

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# libunwind is only available for a certain subset of the
# architectures (as visible in the list of architectures supported
# with the glibc C library below).
#
# In addition to this, on some architectures libunwind requires the
# *context() function from the C library, which are only available on
# certain architectures in uClibc, and not available at all on
# musl. But on some other architectures, libunwind works without using
# the *context() functions, which allows it to be built with musl.
config BR2_PACKAGE_LIBUNWIND_ARCH_SUPPORTS
bool
default y if BR2_TOOLCHAIN_USES_GLIBC && \
(((BR2_arm || BR2_armeb) && BR2_ARM_CPU_HAS_ARM) || \
BR2_mips || BR2_mipsel || BR2_mips64 || \
BR2_mips64el || BR2_powerpc || BR2_sh || BR2_sh64 || BR2_i386 || BR2_x86_64)
default y if BR2_TOOLCHAIN_USES_UCLIBC && \
(((BR2_arm || BR2_armeb) && BR2_ARM_CPU_HAS_ARM) || \
BR2_i386 || BR2_mips || BR2_mipsel || \
BR2_mips64 || BR2_mips64el || BR2_x86_64)
default y if BR2_TOOLCHAIN_USES_MUSL && \
(((BR2_arm || BR2_armeb) && BR2_ARM_CPU_HAS_ARM) || \
BR2_i386 || BR2_x86_64)
config BR2_PACKAGE_LIBUNWIND
bool "libunwind"
depends on BR2_TOOLCHAIN_HAS_THREADS
depends on BR2_PACKAGE_LIBUNWIND_ARCH_SUPPORTS
help
C API to determine the call-chain of a program.
http://www.nongnu.org/libunwind/index.html
comment "libunwind needs a toolchain w/ threads"
depends on BR2_PACKAGE_LIBUNWIND_ARCH_SUPPORTS
depends on !BR2_TOOLCHAIN_HAS_THREADS