# memory barrier function implemented only for some architectures
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config BR2_PACKAGE_OPROFILE_ARCH_SUPPORTS
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bool
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default y
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depends on BR2_arceb || BR2_arcle || BR2_arm || BR2_armeb || \
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BR2_aarch64 || BR2_aarch64_be || BR2_i386 || BR2_mips || \
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BR2_mipsel || BR2_mips64 || BR2_mips64el || BR2_powerpc || \
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BR2_powerpc64 || BR2_powerpc64le || BR2_sh || \
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BR2_sparc || BR2_sparc64 || BR2_x86_64
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config BR2_PACKAGE_OPROFILE_NEEDS_LIBPFM4
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bool
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default y if BR2_powerpc || BR2_powerpc64 || BR2_powerpc64le
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config BR2_PACKAGE_OPROFILE
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bool "oprofile"
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depends on BR2_USE_MMU # fork()
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depends on BR2_INSTALL_LIBSTDCPP
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depends on BR2_USE_WCHAR # binutils
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depends on BR2_PACKAGE_OPROFILE_ARCH_SUPPORTS
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# libpfm4 is needed on PowerPC, and requires thread support
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depends on BR2_TOOLCHAIN_HAS_THREADS_NPTL || !BR2_PACKAGE_OPROFILE_NEEDS_LIBPFM4
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select BR2_PACKAGE_POPT
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select BR2_PACKAGE_BINUTILS
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select BR2_PACKAGE_LIBPFM4 if BR2_PACKAGE_OPROFILE_NEEDS_LIBPFM4
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help
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OProfile is a system-wide profiler for Linux systems,
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capable of profiling all running code at low overhead.
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OProfile is released under the GNU GPL.
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It consists of a kernel driver and a daemon for collecting
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sample data, and several post-profiling tools for turning
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data into information.
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OProfile leverages the hardware performance counters of the
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CPU to enable profiling of a wide variety of interesting
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statistics, which can also be used for basic time-spent
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profiling. All code is profiled: hardware and software
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interrupt handlers, kernel modules, the kernel, shared
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libraries, and applications.
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comment "oprofile needs a toolchain w/ C++, wchar"
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depends on BR2_USE_MMU
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depends on BR2_PACKAGE_OPROFILE_ARCH_SUPPORTS
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depends on !BR2_INSTALL_LIBSTDCPP || !BR2_USE_WCHAR
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comment "oprofile needs a toolchain w/ NPTL on PowerPC(64)"
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depends on BR2_USE_MMU && BR2_PACKAGE_OPROFILE_NEEDS_LIBPFM4
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depends on !BR2_TOOLCHAIN_HAS_THREADS_NPTL
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