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A recent patch [1] to fix a GCC PR [2] actually broke the GDB build. To fix, remove the stack pointer clobber. GCC will ignore the clobber marker, and will not save or restore the stack pointer. I ran "make check-gdb" on x86_64 to ensure there are no regressions. gdb/ChangeLog: 2018-12-17 Dimitar Dimitrov <dimitar@dinux.eu> * nat/linux-ptrace.c (linux_ptrace_test_ret_to_nx): Remove sp clobbers. [1] https://gcc.gnu.org/ml/gcc-patches/2018-12/msg00532.html [2] https://gcc.gnu.org/bugzilla/show_bug.cgi?id=52813 Signed-off-by: Dimitar Dimitrov <dimitar@dinux.eu>