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* csky: Fixup dead loop in show_stackGuo Ren2019-02-131-0/+4
| | | | | | | | When STACKTRACE is enabled, we must pass fp as stack for unwind, otherwise random value in stack will casue a dead loop. Signed-off-by: Guo Ren <ren_guo@c-sky.com> Reported-by: Lu Baoquan <lu.baoquan@intellif.com>
* csky: optimize kernel panic print.Guo Ren2018-12-311-40/+19
| | | | | | | Use STACKTRACE to optimize panic print more pretty and align registers printing. Signed-off-by: Guo Ren <ren_guo@c-sky.com>
* csky: Debug and Ptrace GDBGuo Ren2018-10-261-0/+66
This patch adds arch ptrace implementation, stack dump and bug.h. Signed-off-by: Guo Ren <ren_guo@c-sky.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de>
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