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* csky: Update syscall_trace_enter/exit implementationGuo Ren2019-04-221-15/+12
| | | | | | | | | | Previous syscall_trace implementation couldn't support AUDITSYSCALL and SYSCALL_TRACEPOINTS. Now we redesign it to support audit_syscall and syscall_tracepoints just like other archs'. Signed-off-by: Guo Ren <ren_guo@c-sky.com> Cc: Dmitry V. Levin <ldv@altlinux.org> Cc: Arnd Bergmann <arnd@arndb.de>
* csky: stacktrace supported.Guo Ren2018-12-311-0/+4
| | | | | | | | | The gcc option "-mbacktrace" will push fp(r8),lr into stack and we could unwind the stack with: fp = *fp lr = (unsigned int *)fp[1] Signed-off-by: Guo Ren <ren_guo@c-sky.com>
* csky: Process management and SignalGuo Ren2018-10-261-0/+75
This patch adds files related to task_switch, sigcontext, signal, fpu context switch. Signed-off-by: Guo Ren <ren_guo@c-sky.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Eric W. Biederman <ebiederm@xmission.com>
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