On Tue, Feb 13, 2018 at 01:13:15PM +0800, Alan Quey-Liang Kao(高魁良) wrote: > This patch set includes the building blocks of dynamic ftrace features > for RISC-V machines. > > Changes in v4: > - Organize code structure according to changes in v3 > - Rebase onto the riscv-linux-4.15 branch at github's > riscv/riscv-linux repo. Note that this set is based on the previous > ftrace patch, which provided basic support. > > Changes in v3: > - Replace the nops at the tracer call sites into "call ftrace_stub" > instructions for better understanding (1/6, 2/6 and 5/6) > > Changes in v2: > - Fix the return value as writing to kernel text goes wrong (2/6) > - Replace manual comparisons by calling memcmp (2/6) > - Simplify the conditional assignment in the Makefile (1/6) > > Alan Kao (6): > riscv/ftrace: Add RECORD_MCOUNT support > riscv/ftrace: Add dynamic function tracer support > riscv/ftrace: Add dynamic function graph tracer support > riscv/ftrace: Add ARCH_SUPPORTS_FTRACE_OPS support > riscv/ftrace: Add DYNAMIC_FTRACE_WITH_REGS support > riscv/ftrace: Add HAVE_FUNCTION_GRAPH_RET_ADDR_PTR support > > arch/riscv/Kconfig | 3 + > arch/riscv/Makefile | 3 + > arch/riscv/include/asm/ftrace.h | 56 ++++++++++ > arch/riscv/kernel/Makefile | 5 +- > arch/riscv/kernel/ftrace.c | 175 ++++++++++++++++++++++++++++- > arch/riscv/kernel/mcount-dyn.S | 239 > ++++++++++++++++++++++++++++++++++++++++ > arch/riscv/kernel/mcount.S | 22 ++-- > arch/riscv/kernel/stacktrace.c | 6 + > scripts/recordmcount.pl | 5 + > 9 files changed, 501 insertions(+), 13 deletions(-) > create mode 100644 arch/riscv/kernel/mcount-dyn.S > > -- > 2.15.1 >
Any comments?
