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debug: provide an option to copy the gdbserver to the target

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When an external toolchain is used, it is very likely that it contains
a pre-built version of a gdbserver that has the same version as the
cross-gdb included in the external toolchain. So, we now provide an
option that allows to copy this pre-built gdbserver to the target.

As the location of the gdbserver in the external toolchain is not
standardized, we only support the CodeSourcery and Crosstool-NG
layouts for the moment. Other locations can be added later.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
This commit is contained in:
Thomas Petazzoni 2012-03-14 23:49:57 +01:00 committed by Peter Korsgaard
parent c85f7f4082
commit c56b58b4b7
2 changed files with 22 additions and 0 deletions
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8
toolchain/gdb/Config.in
View File

@ -14,10 +14,18 @@ comment "Gdb debugger for the target needs WCHAR support in toolchain"
config BR2_PACKAGE_GDB_SERVER
bool "Build gdb server for the Target"
depends on !BR2_TOOLCHAIN_EXTERNAL
help
Build the gdbserver stub to run on the target.
A full gdb is needed to debug the progam.
config BR2_TOOLCHAIN_EXTERNAL_GDB_SERVER_COPY
bool "Copy gdb server to the Target"
depends on BR2_TOOLCHAIN_EXTERNAL
help
Copy the gdbserver provided by the external toolchain to the
target.
config BR2_PACKAGE_GDB_HOST
bool "Build gdb for the Host"
# cross-gdb is supposed to be part of the external

14
toolchain/toolchain-external/ext-tool.mk
View File

@ -375,6 +375,20 @@ $(STAMP_DIR)/ext-toolchain-installed: $(STAMP_DIR)/ext-toolchain-checked
if [ -L $${ARCH_SYSROOT_DIR}/lib64 ] ; then \
$(call create_lib64_symlinks) ; \
fi ; \
if test x"$(BR2_TOOLCHAIN_EXTERNAL_GDB_SERVER_COPY)" == x"y"; then \
gdbserver_found=0 ; \
for d in $${ARCH_SYSROOT_DIR} $${ARCH_SYSROOT_DIR}/../debug-root/ ; do \
if test -f $${d}/usr/bin/gdbserver ; then \
install -m 0755 -D $${d}/usr/bin/gdbserver $(TARGET_DIR)/usr/bin/gdbserver ; \
gdbserver_found=1 ; \
break ; \
fi ; \
done ; \
if [ $${gdbserver_found} -eq 0 ] ; then \
echo "Could not find gdbserver in external toolchain" ; \
exit 1 ; \
fi ; \
fi ; \
touch $@
# Build toolchain wrapper for preprocessor, C and C++ compiler, and setup