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- # memory barrier function implemented only for some architectures
- config BR2_PACKAGE_OPROFILE_ARCH_SUPPORTS
- bool
- default y
- depends on BR2_arceb || BR2_arcle || BR2_arm || BR2_armeb || \
- BR2_aarch64 || BR2_aarch64_be || BR2_i386 || BR2_mips || \
- BR2_mipsel || BR2_mips64 || BR2_mips64el || BR2_powerpc || \
- BR2_powerpc64 || BR2_powerpc64le || BR2_s390x || BR2_sh || \
- BR2_sparc || BR2_sparc64 || BR2_x86_64
- config BR2_PACKAGE_OPROFILE_NEEDS_LIBPFM4
- bool
- default y if BR2_powerpc || BR2_powerpc64 || BR2_powerpc64le
- config BR2_PACKAGE_OPROFILE
- bool "oprofile"
- depends on BR2_USE_MMU # fork()
- depends on BR2_INSTALL_LIBSTDCPP
- depends on BR2_USE_WCHAR # binutils
- depends on BR2_PACKAGE_OPROFILE_ARCH_SUPPORTS
- # libpfm4 is needed on PowerPC, and requires thread support
- depends on BR2_TOOLCHAIN_HAS_THREADS_NPTL || !BR2_PACKAGE_OPROFILE_NEEDS_LIBPFM4
- select BR2_PACKAGE_POPT
- select BR2_PACKAGE_BINUTILS
- select BR2_PACKAGE_LIBPFM4 if BR2_PACKAGE_OPROFILE_NEEDS_LIBPFM4
- help
- OProfile is a system-wide profiler for Linux systems,
- capable of profiling all running code at low overhead.
- OProfile is released under the GNU GPL.
- It consists of a kernel driver and a daemon for collecting
- sample data, and several post-profiling tools for turning
- data into information.
- OProfile leverages the hardware performance counters of the
- CPU to enable profiling of a wide variety of interesting
- statistics, which can also be used for basic time-spent
- profiling. All code is profiled: hardware and software
- interrupt handlers, kernel modules, the kernel, shared
- libraries, and applications.
- https://sourceforge.net/projects/oprofile/
- comment "oprofile needs a toolchain w/ C++, wchar"
- depends on BR2_USE_MMU
- depends on BR2_PACKAGE_OPROFILE_ARCH_SUPPORTS
- depends on !BR2_INSTALL_LIBSTDCPP || !BR2_USE_WCHAR
- comment "oprofile needs a toolchain w/ NPTL on PowerPC(64)"
- depends on BR2_USE_MMU && BR2_PACKAGE_OPROFILE_NEEDS_LIBPFM4
- depends on !BR2_TOOLCHAIN_HAS_THREADS_NPTL
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