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| author | Palmer Dabbelt <palmer@rivosinc.com> | 2024-01-17 18:17:29 -0800 |
|---|---|---|
| committer | Palmer Dabbelt <palmer@rivosinc.com> | 2024-01-17 18:17:29 -0800 |
| commit | 3074e8b175382b97545e4d9e26c98a5077b02cb1 (patch) | |
| tree | e57038a1252cb344623d961374418745375b1bf4 /arch/riscv/Kconfig | |
| parent | 448857ec53a47718b50cdb38b9380660b3f84b20 (diff) | |
| parent | 629291dd8499e4dc7dff6e9ab8c13b1a841059e8 (diff) | |
Merge patch series "riscv: ftrace: Miscellaneous ftrace improvements"
Björn Töpel <bjorn@kernel.org> says:
This series includes a three ftrace improvements for RISC-V:
1. Do not require to run recordmcount at build time (patch 1)
2. Simplification of the function graph functionality (patch 2)
3. Enable DYNAMIC_FTRACE_WITH_DIRECT_CALLS (patch 3 and 4)
The series has been tested on Qemu/rv64 virt/Debian sid with the
following test configs:
CONFIG_FTRACE_SELFTEST=y
CONFIG_FTRACE_STARTUP_TEST=y
CONFIG_SAMPLE_FTRACE_DIRECT=m
CONFIG_SAMPLE_FTRACE_DIRECT_MULTI=m
CONFIG_SAMPLE_FTRACE_OPS=m
All tests pass.
* b4-shazam-merge:
samples: ftrace: Add RISC-V support for SAMPLE_FTRACE_DIRECT[_MULTI]
riscv: ftrace: Add DYNAMIC_FTRACE_WITH_DIRECT_CALLS support
riscv: ftrace: Make function graph use ftrace directly
riscv: select FTRACE_MCOUNT_USE_PATCHABLE_FUNCTION_ENTRY
Link: https://lore.kernel.org/r/20231130121531.1178502-1-bjorn@kernel.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Diffstat (limited to 'arch/riscv/Kconfig')
| -rw-r--r-- | arch/riscv/Kconfig | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig index 1070728c8321..d6f3fc393097 100644 --- a/arch/riscv/Kconfig +++ b/arch/riscv/Kconfig @@ -70,6 +70,7 @@ config RISCV select CPU_PM if CPU_IDLE || HIBERNATION || SUSPEND select EDAC_SUPPORT select FRAME_POINTER if PERF_EVENTS || (FUNCTION_TRACER && !DYNAMIC_FTRACE) + select FTRACE_MCOUNT_USE_PATCHABLE_FUNCTION_ENTRY if DYNAMIC_FTRACE select GENERIC_ARCH_TOPOLOGY select GENERIC_ATOMIC64 if !64BIT select GENERIC_CLOCKEVENTS_BROADCAST if SMP @@ -115,6 +116,7 @@ config RISCV select HAVE_DEBUG_KMEMLEAK select HAVE_DMA_CONTIGUOUS if MMU select HAVE_DYNAMIC_FTRACE if !XIP_KERNEL && MMU && (CLANG_SUPPORTS_DYNAMIC_FTRACE || GCC_SUPPORTS_DYNAMIC_FTRACE) + select HAVE_DYNAMIC_FTRACE_WITH_DIRECT_CALLS select HAVE_DYNAMIC_FTRACE_WITH_REGS if HAVE_DYNAMIC_FTRACE select HAVE_FTRACE_MCOUNT_RECORD if !XIP_KERNEL select HAVE_FUNCTION_GRAPH_TRACER @@ -142,6 +144,8 @@ config RISCV select HAVE_REGS_AND_STACK_ACCESS_API select HAVE_RETHOOK if !XIP_KERNEL select HAVE_RSEQ + select HAVE_SAMPLE_FTRACE_DIRECT + select HAVE_SAMPLE_FTRACE_DIRECT_MULTI select HAVE_STACKPROTECTOR select HAVE_SYSCALL_TRACEPOINTS select HOTPLUG_CORE_SYNC_DEAD if HOTPLUG_CPU |