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2 commits

Author SHA1 Message Date
Guo Ren
0ea2dc7cd6 csky: stacktrace supported. 
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>
 2018-12-31 23:12:22 +08:00
Guo Ren
e9564df753 csky: Process management and Signal 
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>
 2018-10-26 00:54:13 +08:00