From: Alan Kao <alankao@andestech.com>
To: Palmer Dabbelt <palmer@sifive.com>, Albert Ou <albert@sifive.com>,
"Steven Rostedt" <rostedt@goodmis.org>,
Ingo Molnar <mingo@redhat.com>, <patches@groups.riscv.org>,
<linux-kernel@vger.kernel.org>, <greentime@andestech.com>
Cc: Alan Kao <alankao@andestech.com>
Subject: [PATCH v4 0/6] Add dynamic ftrace support for RISC-V platforms
Date: Tue, 13 Feb 2018 13:13:15 +0800 [thread overview]
Message-ID: <1518498801-677-1-git-send-email-alankao@andestech.com> (raw)
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
next reply other threads:[~2018-02-13 5:42 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-02-13 5:13 Alan Kao [this message]
2018-02-13 5:13 ` [PATCH v4 1/6] riscv/ftrace: Add RECORD_MCOUNT support Alan Kao
2018-02-13 5:13 ` [PATCH v4 2/6] riscv/ftrace: Add dynamic function tracer support Alan Kao
2018-02-13 5:13 ` [PATCH v4 3/6] riscv/ftrace: Add dynamic function graph " Alan Kao
2018-02-13 5:13 ` [PATCH v4 4/6] riscv/ftrace: Add ARCH_SUPPORTS_FTRACE_OPS support Alan Kao
2018-02-13 5:13 ` [PATCH v4 5/6] riscv/ftrace: Add DYNAMIC_FTRACE_WITH_REGS support Alan Kao
2018-02-13 5:13 ` [PATCH v4 6/6] riscv/ftrace: Add HAVE_FUNCTION_GRAPH_RET_ADDR_PTR support Alan Kao
2018-02-21 2:45 ` [PATCH v4 0/6] Add dynamic ftrace support for RISC-V platforms Alan Kao
2018-02-24 1:02 ` [patches] " Palmer Dabbelt
2018-02-21 16:05 ` [patches] " Palmer Dabbelt
2018-02-22 8:45 ` Alan Kao
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