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BSP 최초 추가
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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
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