kernel.git/arch/riscv/kernel/stacktrace.c, branch linux-5.0.yHosts the 0x221E linux distro kernel.
https://git.0xinfinity.dev/distro/kernel.git/atom?h=linux-5.0.y2018-04-03T02:59:13Zriscv/ftrace: Add HAVE_FUNCTION_GRAPH_RET_ADDR_PTR support2018-04-03T02:59:13ZAlan Kao2018-02-13T05:13:21Zurn:sha1:b785ec129bd9498ecd6e221e45820b00c6ed4adf
In walk_stackframe, the pc now receives the address from calling
ftrace_graph_ret_addr instead of manual calculation.
Note that the original calculation,
pc = frame->ra - 4
is buggy when the instruction at the return address happened to be a
compressed inst. But since it is not a critical part of ftrace, it is
ignored for now to ease the review process.
Cc: Greentime Hu <greentime@andestech.com>
Signed-off-by: Alan Kao <alankao@andestech.com>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
RISC-V: Generic library routines and assembly2017-09-26T22:26:45ZPalmer Dabbelt2017-07-11T01:03:19Zurn:sha1:5d8544e2d0075a5f3c9a2cf27152354d54360da1
This patch contains code that is more specific to the RISC-V ISA than it
is to Linux. It contains string and math operations, C wrappers for
various assembly instructions, stack walking code, and uaccess.
Signed-off-by: Palmer Dabbelt <palmer@dabbelt.com>