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gdb: Explicitly point to target's libgmp for native build

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Starting from GDB 11.x, gmp is needed as a dependency to build full gdb.
And by default build system of native GDB will try to link with libgmp
of the build host. And to make sure that doesn't happen we need to
specify location of the target's sysroot so that library search starts
from there. Which we do in that change.

Fixes [1] & [1].

[1] https://github.com/crosstool-ng/crosstool-ng/issues/2084
[2] https://github.com/crosstool-ng/crosstool-ng/issues/1656

Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
This commit is contained in:
Alexey Brodkin 2024-01-14 14:52:02 -08:00 committed by Chris Packham
parent 2c93ba7577
commit 44208730a6
1 changed files with 8 additions and 0 deletions
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8
scripts/build/debug/300-gdb.sh
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@ -122,6 +122,14 @@ do_debug_gdb_build()
native_extra_config+=("--program-prefix=")
# Starting from GDB 11.x, gmp is needed as a dependency to build full
# gdb. And if target GMP gets built, explicitly point to installed library,
# as otherwise host library might be attempted to be used for target binary
# linkage.
if [ "${CT_GMP_TARGET}" = "y" ]; then
native_extra_config+=("--with-libgmp-prefix=${CT_SYSROOT_DIR}")
fi
# gdbserver gets enabled by default with gdb
# since gdbserver was promoted to top-level
if [ "${CT_GDB_GDBSERVER_TOPLEVEL}" = "y" ]; then