From: Donglin Peng <dolinux.peng@gmail.com>
To: rostedt@goodmis.org
Cc: mhiramat@kernel.org, dolinux.peng@gmai.com,
linux-trace-kernel@vger.kernel.org, linux-kernel@vger.kernel.org,
pengdonglin <pengdonglin@xiaomi.com>,
Xiaoqin Zhang <zhangxiaoqin@xiaomi.com>
Subject: [PATCH v6 2/4] ftrace: Build trace_btf.c when CONFIG_DEBUG_INFO_BTF is enabled
Date: Wed, 16 Sep 2026 21:32:16 +0800 [thread overview]
Message-ID: <20260916133218.1282590-3-dolinux.peng@gmail.com> (raw)
In-Reply-To: <20260916133218.1282590-1-dolinux.peng@gmail.com>
From: pengdonglin <pengdonglin@xiaomi.com>
The trace_btf.c file provides BTF helper functions used by the ftrace
subsystem. Make the compilation of trace_btf.c solely depend on
CONFIG_DEBUG_INFO_BTF, allowing features like funcgraph-retval to also
utilize these helpers.
Additionally, the redundant dependency on CONFIG_PROBE_EVENTS_BTF_ARGS
is removed, as CONFIG_DEBUG_INFO_BTF already depends on
CONFIG_BPF_SYSCALL.
Cc: Steven Rostedt (Google) <rostedt@goodmis.org>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Xiaoqin Zhang <zhangxiaoqin@xiaomi.com>
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: pengdonglin <pengdonglin@xiaomi.com>
---
kernel/trace/Kconfig | 2 +-
kernel/trace/Makefile | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/kernel/trace/Kconfig b/kernel/trace/Kconfig
index 0ab5916575a9..d8faeb659cfc 100644
--- a/kernel/trace/Kconfig
+++ b/kernel/trace/Kconfig
@@ -770,7 +770,7 @@ config FPROBE_EVENTS
config PROBE_EVENTS_BTF_ARGS
depends on HAVE_FUNCTION_ARG_ACCESS_API
depends on FPROBE_EVENTS || KPROBE_EVENTS
- depends on DEBUG_INFO_BTF && BPF_SYSCALL
+ depends on DEBUG_INFO_BTF
bool "Support BTF function arguments for probe events"
default y
help
diff --git a/kernel/trace/Makefile b/kernel/trace/Makefile
index f934ff586bd4..28b08f31e7e5 100644
--- a/kernel/trace/Makefile
+++ b/kernel/trace/Makefile
@@ -119,7 +119,7 @@ obj-$(CONFIG_KGDB_KDB) += trace_kdb.o
endif
obj-$(CONFIG_DYNAMIC_EVENTS) += trace_dynevent.o
obj-$(CONFIG_PROBE_EVENTS) += trace_probe.o
-obj-$(CONFIG_PROBE_EVENTS_BTF_ARGS) += trace_btf.o
+obj-$(CONFIG_DEBUG_INFO_BTF) += trace_btf.o
obj-$(CONFIG_UPROBE_EVENTS) += trace_uprobe.o
obj-$(CONFIG_BOOTTIME_TRACING) += trace_boot.o
obj-$(CONFIG_FTRACE_RECORD_RECURSION) += trace_recursion_record.o
--
2.34.1
next prev parent reply other threads:[~2026-09-16 13:32 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-16 13:32 [PATCH v6 0/4] Use BTF to trim return values Donglin Peng
2026-09-16 13:32 ` [PATCH v6 1/4] tracing: Avoid BTF lookup in atomic context Donglin Peng
2026-09-16 13:32 ` Donglin Peng [this message]
2026-09-16 13:32 ` [PATCH v6 3/4] fgraph: Enhance funcgraph-retval with BTF-based type-aware output Donglin Peng
2026-09-16 13:32 ` [PATCH v6 4/4] tracing: Update funcgraph-retval documentation Donglin Peng
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