diff options
| -rw-r--r-- | package/libunwind/Config.in | 31 |
1 files changed, 24 insertions, 7 deletions
diff --git a/package/libunwind/Config.in b/package/libunwind/Config.in index 85cb472ed3..593172fc23 100644 --- a/package/libunwind/Config.in +++ b/package/libunwind/Config.in @@ -1,15 +1,32 @@ +# 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_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_i386 || BR2_mips || BR2_mipsel || \ + BR2_mips64 || BR2_mips64el || BR2_x86_64) + default y if BR2_TOOLCHAIN_USES_MUSL && \ + (BR2_arm || BR2_armeb || BR2_i386 || BR2_x86_64) + config BR2_PACKAGE_LIBUNWIND bool "libunwind" depends on BR2_TOOLCHAIN_HAS_THREADS - depends on (BR2_UCLIBC_VERSION_SNAPSHOT || BR2_TOOLCHAIN_USES_GLIBC) # {g,s}etcontext - depends on BR2_arm || BR2_armeb || BR2_mips || BR2_mipsel || BR2_mips64 || \ - BR2_mips64el || BR2_powerpc || BR2_sh || BR2_sh64 || BR2_i386 || BR2_x86_64 + 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 uclibc snapshot or (e)glibc toolchain w/ threads" - depends on BR2_arm || BR2_armeb || BR2_mips || BR2_mipsel || BR2_mips64 || \ - BR2_mips64el || BR2_powerpc || BR2_sh || BR2_sh64 || BR2_i386 || BR2_x86_64 - depends on !BR2_TOOLCHAIN_HAS_THREADS || !(BR2_UCLIBC_VERSION_SNAPSHOT || BR2_TOOLCHAIN_USES_GLIBC) +comment "libunwind needs a toolchain w/ threads" + depends on BR2_PACKAGE_LIBUNWIND_ARCH_SUPPORTS + depends on !BR2_TOOLCHAIN_HAS_THREADS |
