Messages in this thread | | | From | Arnd Bergmann <> | Date | Wed, 26 Jul 2017 12:12:04 +0200 | Subject | objtool failures with -march=atom |
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With the latest objtool failure, I get countless warnings when -march=atom or -mtune=atom is used, at least with gcc-4.9 through gcc-7 (I did not try older versions:
kernel/sched/core.o: warning: objtool: trace_raw_output_sched_stat_runtime()+0x9a: return with modified stack frame kernel/sched/core.o: warning: objtool: cpu_cgroup_fork()+0x7c: return with modified stack frame kernel/sched/core.o: warning: objtool: walk_tg_tree_from()+0xd3: return with modified stack frame kernel/sched/core.o: warning: objtool: ttwu_do_wakeup()+0x2a8: return with modified stack frame kernel/sched/core.o: warning: objtool: do_set_cpus_allowed()+0x1fe: return with modified stack frame kernel/sched/core.o: warning: objtool: sched_ttwu_pending()+0xf2: return with modified stack frame kernel/sched/core.o: warning: objtool: sched_exec()+0xd0: return with modified stack frame kernel/sched/core.o: warning: objtool: task_sched_runtime()+0x148: return with modified stack frame kernel/sched/core.o: warning: objtool: sched_move_task()+0x176: return with modified stack frame kernel/sched/core.o: warning: objtool: sched_init()+0x6cb: return with modified stack frame
Can you have a look?
There are probably other failures as well, I'm trying to reproduce the others now with atom optimizations disabled.
Arnd
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