Hello Mao Han, On Thu, 29 Aug 2019, Mao Han wrote: > This patch add support for DWARF register mappings and libdw registers > initialization, which is used by perf callchain analyzing when > --call-graph=dwarf is given. > diff --git a/tools/arch/riscv/include/uapi/asm/perf_regs.h b/tools/arch/riscv/include/uapi/asm/perf_regs.h > new file mode 100644 > index 0000000..df1a581 > --- /dev/null > +++ b/tools/arch/riscv/include/uapi/asm/perf_regs.h > @@ -0,0 +1,42 @@ > +/* SPDX-License-Identifier: GPL-2.0 */ As with https://lore.kernel.org/linux-riscv/CAJF2gTRXH_bx0rwsTZMTnX+umZfVTL_iVnewPtVM50sLaqJPTg@xxxxxxxxxxxxxx/T/#t is it possible to change this license string to "GPL-2.0 WITH Linux-syscall-note" to match the other Linux architectures? - Paul