linux/arch/csky
Mao Han b4bf274198 csky: Add perf_arch_fetch_caller_regs support
In trace events as tracepoints context are not able to
be retrieve with task_pt_regs. Without arch caller regs
support the pt_regs context will be all zero, perf can
not parsing the callchain and resolving the symbols
correctly, some time will even get into deadlock
while handling the page fault, eg:

perf kmem —page record ls

Changelog
 - Add test case cmd in comment
 - Use regs_fp(regs) which is defined in abi/regdef.h

Signed-off-by: Mao Han <han_mao@c-sky.com>
Signed-off-by: Guo Ren <guoren@kernel.org>
2019-04-22 13:44:57 +08:00
..
abiv1 csky: Add perf_arch_fetch_caller_regs support 2019-04-22 13:44:57 +08:00
abiv2 csky: Add perf_arch_fetch_caller_regs support 2019-04-22 13:44:57 +08:00
boot csky: use common dtb build rules 2018-11-01 10:52:27 +08:00
configs
include csky: Add perf_arch_fetch_caller_regs support 2019-04-22 13:44:57 +08:00
kernel csky: Support dynamic start physical address 2019-04-22 13:44:57 +08:00
lib Remove 'type' argument from access_ok() function 2019-01-03 18:57:57 -08:00
mm csky: mm/fault.c: Remove duplicate header 2019-04-22 13:44:57 +08:00
Kconfig csky: Update syscall_trace_enter/exit implementation 2019-04-22 13:44:57 +08:00
Kconfig.debug csky: remove builtin-dtb Kbuild 2018-11-01 10:52:26 +08:00
Makefile csky: Fixup vdsp&fpu issues in kernel 2019-04-22 13:44:57 +08:00