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* gdb: disable on AArch64Thomas Petazzoni2013-04-131-1/+2
| | | | | | | | | | | | | The mainline gdb does not yet have AArch64 support at all, so let's disable it for this platform. The external toolchain provided by Linaro has gdbserver + cross-gdb, so it already provides what's necessary to do some debugging. Fixes http://autobuild.buildroot.org/results/c330eb75bd2d3e2f002e7a362dd5b08c4fc7fafc/build-end.log. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
* gdb: do not allow gdbserver/cross-gdb build in some casesThomas Petazzoni2013-04-111-1/+6
| | | | | | | | | | | | | | | When an external toolchain is used, and the user has chosen to copy the external toolchain gdbserver to the target, then we should allow the user to build a gdbserver and/or a cross-gdb: the ones of the external toolchain should be used. The reasoning is that one must use a gdbserver and cross-gdb of identical versions to be sure that debugging will work properly. Change suggested by Yann E. Morin. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
* gdb: convert to the package infrastructureThomas Petazzoni2013-04-111-0/+41
This commit converts gdb to the package infrastructure, and therefore moves it from toolchain/gdb to package/gdb. The target package is now visible in "Package selection for the target" => "Debugging, profiling and benchmark". The main option, "gdb", forcefully selects the "gdbserver" sub-option by default. Another sub-option, "full debugger" allows to install the complete gdb on the target. When this option is enabled, then "gdbserver" is no longer forcefully selected. This ensures that at least gdbserver or the full debugger gets built/installed, so that the package is not a no-op. The host debugger is still enabled through a configuration option in "Toolchain". It is now visible regardless of the toolchain type (it used to be hidden for External Toolchains). The configuration options relative to the host debugger are now in package/gdb/Config.in.host, similar to how we have package/binutils/Config.in.host. Since gdb is now a proper package, it is no longer allowed to 'select BR2_PTHREADS_DEBUG' to ensure thread debugging is available when needed. Instead, it now 'depends on BR2_TOOLCHAIN_HAS_THREADS_DEBUG'. This option, in turn, is selected by the different toolchain backends when appropriate. The 'BR2_TOOLCHAIN_HAS_THREADS_DEBUG_IF_NEEDED' option is removed, since we no longer need to know when it is allowed to 'select BR2_PTHREADS_DEBUG'. Also, the 'BR2_PTHREADS_DEBUG' option is moved to appear right below the thread implementation selection (in the case of the Buildroot toolchain backend). Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>