package/gdb: prevent gdbserver being selected for or1k builds

There is currently no version of gdbserver for or1k. Until this
is implemented we will prevent both the direct and indirect
selection of gdbserver for or1k builds. In practice this means
that 'cross gdb for the host' cannot be selected and that
'full debugger' must be automatically selected for the gdb target
package.

This partially reverts commit 991b7b990a
which claimed that gdbserver for or1k was already supported before
version 8.3. That is not true - the commit that adds gdbserver support
for or1k [1] was only merged for version 12.1, which hasn't been
integrated in Buildroot yet.

Without that support, the build of gdbserver fails with

/home/buildroot/autobuild/instance-1/output-1/host/opt/ext-toolchain/bin/../lib/gcc/or1k-buildroot-linux-musl/11.2.0/../../../../or1k-buildroot-linux-musl/bin/ld: server.o: in function `main':
server.cc:(.text.startup+0x6dc): undefined reference to `initialize_low()'
/home/buildroot/autobuild/instance-1/output-1/host/opt/ext-toolchain/bin/../lib/gcc/or1k-buildroot-linux-musl/11.2.0/../../../../or1k-buildroot-linux-musl/bin/ld: remote-utils.o: in function `prepare_resume_reply(char*, ptid_t, target_waitstatus*)':
remote-utils.cc:(.text+0x28a8): undefined reference to `using_threads'
/home/buildroot/autobuild/instance-1/output-1/host/opt/ext-toolchain/bin/../lib/gcc/or1k-buildroot-linux-musl/11.2.0/../../../../or1k-buildroot-linux-musl/bin/ld: remote-utils.cc:(.text+0x28b0): undefined reference to `using_threads'

Fixes: http://autobuild.buildroot.net/results/b3c/b3c0df53d09d9facaf0c3c2bc4529f9fcf7737ee

[1] https://sourceware.org/git/?p=binutils-gdb.git;a=commitdiff;h=4933265c3f71b9134363d0c05f09542d5cc677f4

Signed-off-by: Romain Naour <romain.naour@gmail.com>
Cc: Stafford Horne <shorne@gmail.com>
Signed-off-by: Arnout Vandecappelle <arnout@mind.be>
This commit is contained in:
Romain Naour 2022-08-27 18:14:31 +02:00 committed by Arnout Vandecappelle
parent 7537419257
commit d16db6d8a4
2 changed files with 4 additions and 0 deletions

View File

@ -17,6 +17,8 @@ config BR2_PACKAGE_GDB
depends on BR2_PACKAGE_GDB_ARCH_SUPPORTS
depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_8
depends on BR2_INSTALL_LIBSTDCPP
# no gdbserver on or1k
select BR2_PACKAGE_GDB_DEBUGGER if BR2_or1k
# When the external toolchain gdbserver is copied to the
# target, we don't allow building a separate gdbserver. The
# one from the external toolchain should be used.
@ -43,6 +45,7 @@ if BR2_PACKAGE_GDB
config BR2_PACKAGE_GDB_SERVER
bool "gdbserver"
depends on !BR2_TOOLCHAIN_EXTERNAL_GDB_SERVER_COPY
depends on !BR2_or1k
help
Build the gdbserver stub to run on the target.
A full gdb is needed to debug the progam.

View File

@ -3,6 +3,7 @@ config BR2_PACKAGE_HOST_GDB_ARCH_SUPPORTS
default y
depends on !((BR2_arm || BR2_armeb) && BR2_BINFMT_FLAT)
depends on !BR2_microblaze
depends on !BR2_or1k
comment "Host GDB Options"
depends on !BR2_TOOLCHAIN_EXTERNAL_GDB_SERVER_COPY