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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_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.
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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