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SubjectRe: [patches] Re: [PATCH v4 0/6] Add dynamic ftrace support for RISC-V platforms
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On Tue, 20 Feb 2018 18:45:39 PST (-0800), alankao@andestech.com wrote:
> 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?

Sorry, my email latency is a bit long now as I'm still backed up from FOSDEM.
This looks good, it should already be in our for-next branch.

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