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authorGuo Ren <guoren@linux.alibaba.com>2020-04-14 20:14:12 +0800
committerGuo Ren <guoren@linux.alibaba.com>2020-05-13 17:55:05 +0800
commitc2e59d1f4df8783856a4e6a05a7d4a76d7cf7082 (patch)
treeb4668a9c98af02140494cb7ae5ee84702f3d5c22 /arch/csky/abiv1/inc
parentbd11aabd35287b6961d197539aa61da5ab8fc0d7 (diff)
downloadlinux-sh-c2e59d1f4df8783856a4e6a05a7d4a76d7cf7082.tar.gz
csky: Fixup perf probe -x hungup
case: # perf probe -x /lib/libc-2.28.9000.so memcpy # perf record -e probe_libc:memcpy -aR sleep 1 System hangup and cpu get in trap_c loop, because our hardware singlestep state could still get interrupt signal. When we get in uprobe_xol singlestep slot, we should disable irq in pt_regs->psr. And is_swbp_insn() need a csky arch implementation with a low 16bit mask. Signed-off-by: Guo Ren <guoren@linux.alibaba.com> Cc: Steven Rostedt (VMware) <rostedt@goodmis.org>
Diffstat (limited to 'arch/csky/abiv1/inc')
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