kumquat-buildroot/package/oprofile/Config.in
Erico Nunes 88db88d1b3 binutils: enable as target package for aarch64
binutils got disabled as a target package for aarch64 back in Buildroot
2012.11 (commit 660d16f4).
The default version 2.21.1 at the time didn't really support aarch64, as
shown by the autobuilder error reference in that commit.

binutils has now had support for aarch64 since 2.23, but was never
re-enabled for aarch64.

All of the binutils versions currently supported by Buildroot (oldest
being 2.24) support aarch64, so we can now enable it without any
restrictions.

This same patch also touches the dropwatch, lightning and oprofile
packages which all select binutils and had the 'depends on !aarch64' to
keep Kconfig consistent. They are now re-enabled for aarch64 as well.
They are changed in this same patch so that Kconfig is kept consistent
and doesn't end up having them disabled in a commit which only has the
binutils change applied.
lightning has other explicit arch dependencies so it is not actually yet
available in aarch64, but at least the dependency on !aarch64 because of
binutils is not needed anymore.

Everything has been build tested with Buildroot and external toolchains.
binutils and dropwatch work fine in a qemu target. oprofile doesn't seem
to be supported in the qemu aarch64 processor but builds fine and seems
to have some level of aarch64 support in the source, so there doesn't
seem to be a reason to keep it disabled in Kconfig.

Signed-off-by: Erico Nunes <nunes.erico@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
2016-06-08 23:55:05 +02:00

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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_nios2 # binutils
depends on BR2_USE_WCHAR # binutils
# no memory barrier functions
depends on !BR2_xtensa && !BR2_microblaze
# libpfm4 is needed on PowerPC, and requires thread support
depends on BR2_TOOLCHAIN_HAS_THREADS_NPTL || !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_nios2 && !BR2_xtensa && !BR2_microblaze
depends on !BR2_INSTALL_LIBSTDCPP || !BR2_USE_WCHAR
comment "oprofile needs a toolchain w/ NPTL on PPC"
depends on BR2_USE_MMU && BR2_powerpc
depends on !BR2_TOOLCHAIN_HAS_THREADS_NPTL