config BR2_PACKAGE_OPROFILE bool "oprofile" depends on BR2_USE_MMU # fork() select BR2_PACKAGE_POPT select BR2_PACKAGE_BINUTILS select BR2_PACKAGE_LIBPFM4 if BR2_powerpc depends on BR2_INSTALL_LIBSTDCPP depends on !BR2_aarch64 && !BR2_nios2 # binutils depends on BR2_USE_WCHAR # binutils depends on !BR2_xtensa # libpfm4 is needed on PowerPC, and requires thread support depends on BR2_TOOLCHAIN_HAS_THREADS || !BR2_powerpc 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. comment "oprofile needs a toolchain w/ C++, wchar" depends on BR2_USE_MMU depends on !BR2_aarch64 && !BR2_nios2 && !BR2_xtensa depends on !BR2_INSTALL_LIBSTDCPP || !BR2_USE_WCHAR comment "oprofile needs a toolchain w/ threads on PPC" depends on BR2_USE_MMU && BR2_powerpc depends on !BR2_TOOLCHAIN_HAS_THREADS