wireguard-linux/arch/csky/kernel/Makefile, branch jd/unified-crypt-queueWireGuard for the Linux kernelhttps://git.zx2c4.com/wireguard-linux/atom/arch/csky/kernel/Makefile?h=jd%2Funified-crypt-queue2020-04-03T03:14:17Zcsky: Add kprobes supported2020-04-03T03:14:17ZGuo Renguoren@linux.alibaba.com2020-04-01T01:17:02Zurn:sha1:33e53ae1ce413a081254e686d9b27cc1b3585e2f
This patch enable kprobes, kretprobes, ftrace interface. It utilized
software breakpoint and single step debug exceptions, instructions
simulation on csky.
We use USR_BKPT replace origin instruction, and the kprobe handler
prepares an excutable memory slot for out-of-line execution with a
copy of the original instruction being probed. Most of instructions
could be executed by single-step, but some instructions need origin
pc value to execute and we need software simulate these instructions.
Signed-off-by: Guo Ren <guoren@linux.alibaba.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Steven Rostedt (VMware) <rostedt@goodmis.org>
treewide: Add SPDX license identifier - Makefile/Kconfig2019-05-21T08:50:46ZThomas Gleixnertglx@linutronix.de2019-05-19T12:07:45Zurn:sha1:ec8f24b7faaf3d4799a7c3f4c1b87f6b02778ad1
Add SPDX license identifiers to all Make/Kconfig files which:
- Have no license information of any form
These files fall under the project license, GPL v2 only. The resulting SPDX
license identifier is:
GPL-2.0-only
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
csky: Add support for perf registers sampling2019-04-22T05:44:57ZMao Hanhan_mao@c-sky.com2019-04-15T09:17:29Zurn:sha1:daac95e70f482e7add3305ee5e38f00dca505268
This patch implements the perf registers sampling and validation API
for csky arch. The valid registers and their register ID are defined in
perf_regs.h. Perf tool can backtrace in userspace with unwind library
and the registers/user stack dump support.
Signed-off-by: Mao Han <han_mao@c-sky.com>
Signed-off-by: Guo Ren <ren_guo@c-sky.com>
csky: Add perf callchain support2019-04-22T05:44:57ZMao Hanhan_mao@c-sky.com2019-02-21T13:41:26Zurn:sha1:cfa4d93b977a1b1129e7207d11b5daecdf0c56c4
This patch add support for perf callchain sampling on csky platform.
As fp is used to unwind the stack, the program being sampled and the
C library need to be compiled with -mbacktrace for user callchains,
kernel callchains require CONFIG_STACKTRACE = y.
Changelog:
- Coding convention with Christoph's advice for riscv's.
Signed-off-by: Mao Han <han_mao@c-sky.com>
Signed-off-by: Guo Ren <ren_guo@c-sky.com>
Cc: Christoph Hellwig <hch@infradead.org>
csky: Add perf support for C-SKY2019-01-02T14:17:11ZGuo Renren_guo@c-sky.com2019-01-02T14:09:25Zurn:sha1:f50fd2d8524c15b08da9e7e9d84752f0f1be7172
This adds basic perf support for all C-SKY CPUs. Hardware events are
only supported by 807/810/860.
Signed-off-by: Guo Ren <ren_guo@c-sky.com>
csky: basic ftrace supported2018-12-31T15:16:46ZGuo Renren_guo@c-sky.com2018-12-09T06:29:59Zurn:sha1:230c77a5e92a29bf21e98ee35e22b0537f61c55b
When gcc with -pg, it'll add _mcount stub in every function. We need
implement the _mcount in kernel and ftrace depends on stackstrace.
To do: call-graph, dynamic ftrace
Signed-off-by: Guo Ren <ren_guo@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: Build infrastructure2018-10-25T15:36:19ZGuo Renren_guo@c-sky.com2018-09-05T06:25:06Zurn:sha1:c32e64e852f3f5c0fd709f84bc94736840088375
This patch adds Makefile, Kconfig for build infrastructure.
Signed-off-by: Guo Ren <ren_guo@c-sky.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>