pm24.git/arch/csky/kernel/process.c, branch v5.6Unnamed repository; edit this file 'description' to name the repository.
https://git.kobert.dev/pm24.git/atom?h=v5.62020-02-21T07:43:25Zcsky: Implement copy_thread_tls2020-02-21T07:43:25ZGuo Renguoren@linux.alibaba.com2020-02-12T02:24:52Zurn:sha1:0b9f386c4be6493d282aab0af6f9b70c62142777
This is required for clone3 which passes the TLS value through a
struct rather than a register.
Cc: Amanieu d'Antras <amanieu@gmail.com>
Signed-off-by: Guo Ren <guoren@linux.alibaba.com>
csky: Initial stack protector support2020-02-21T07:43:24ZMao Hanhan_mao@c-sky.com2019-10-11T02:56:55Zurn:sha1:2f78c73f78c39dabc5c44ad8dd61fd6ec65636d6
This is a basic -fstack-protector support without per-task canary
switching. The protector will report something like when stack
corruption is detected:
It's tested with strcpy local array overflow in sys_kill and get:
stack-protector: Kernel stack is corrupted in: sys_kill+0x23c/0x23c
TODO:
- Support task switch for different cannary
Signed-off-by: Mao Han <han_mao@c-sky.com>
Signed-off-by: Guo Ren <guoren@linux.alibaba.com>
csky: Fixup add zero_fp fixup perf backtrace panic2019-09-30T02:26:32ZGuo Renren_guo@c-sky.com2019-09-25T11:56:16Zurn:sha1:48ede51fd94fe9251058fc85626b2aeb5cbb5884
We need set fp zero to let backtrace know the end. The patch fixup perf
callchain panic problem, because backtrace didn't know what is the end
of fp.
Signed-off-by: Guo Ren <ren_guo@c-sky.com>
Reported-by: Mao Han <han_mao@c-sky.com>
csky: stacktrace supported.2018-12-31T15:12:22ZGuo Renren_guo@c-sky.com2018-12-09T06:18:05Zurn:sha1:0ea2dc7cd668be5475babecaf6fdeaa464e2847b
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 Signal2018-10-25T16:54:13ZGuo Renren_guo@c-sky.com2018-09-05T06:25:14Zurn:sha1:e9564df753fd547fcbcd4fd10015c3b1213ef452
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>