From: Nadav Amit <nadav.amit@gmail.com>
To: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, linux-ia64@vger.kernel.org,
linux-um@lists.infradead.org, linux-arch@vger.kernel.org,
linux-mm@kvack.org, Andy Lutomirski <luto@kernel.org>,
Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
Dave Hansen <dave.hansen@linux.intel.com>,
x86@kernel.org, Richard Weinberger <richard@nod.at>,
Anton Ivanov <anton.ivanov@cambridgegreys.com>,
Johannes Berg <johannes@sipsolutions.net>,
Arnd Bergmann <arnd@arndb.de>,
Andrew Morton <akpm@linux-foundation.org>,
Nadav Amit <namit@vmware.com>
Subject: [PATCH 2/3] lib/usercopy: Allow traceing of usercopy, xarray, iov_iter
Date: Tue, 22 Nov 2022 11:53:28 -0800 [thread overview]
Message-ID: <20221122195329.252654-3-namit@vmware.com> (raw)
In-Reply-To: <20221122195329.252654-1-namit@vmware.com>
From: Nadav Amit <namit@vmware.com>
There is no reason not to allow the use of ftrace for usercopy, xarray
and iov_iter. Enable tracing for these compilation unit.
Signed-off-by: Nadav Amit <namit@vmware.com>
---
lib/Makefile | 3 +++
1 file changed, 3 insertions(+)
diff --git a/lib/Makefile b/lib/Makefile
index 59bd7c2f793a..32766aa26670 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -27,6 +27,8 @@ KASAN_SANITIZE_string.o := n
CFLAGS_string.o += -fno-stack-protector
endif
+CFLAGS_xarray.o += $(CC_FLAGS_FTRACE)
+CFLAGS_iov_iter.o += $(CC_FLAGS_FTRACE)
lib-y := ctype.o string.o vsprintf.o cmdline.o \
rbtree.o radix-tree.o timerqueue.o xarray.o \
maple_tree.o idr.o extable.o irq_regs.o argv_split.o \
@@ -42,6 +44,7 @@ lib-$(CONFIG_SMP) += cpumask.o
lib-y += kobject.o klist.o
obj-y += lockref.o
+CFLAGS_usercopy.o += $(CC_FLAGS_FTRACE)
obj-y += bcd.o sort.o parser.o debug_locks.o random32.o \
bust_spinlocks.o kasprintf.o bitmap.o scatterlist.o \
list_sort.o uuid.o iov_iter.o clz_ctz.o \
--
2.25.1
next prev parent reply other threads:[~2022-11-22 19:55 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-11-22 19:53 [PATCH 0/3] kprobes: notrace enhancements Nadav Amit
2022-11-22 19:53 ` [PATCH 1/3] kprobes: Mark descendents of core_kernel_text as notrace Nadav Amit
2022-11-22 19:53 ` Nadav Amit [this message]
2022-11-22 19:53 ` [PATCH 3/3] compiler: inline does not imply notrace Nadav Amit
2022-11-22 20:09 ` Arnd Bergmann
2022-11-22 20:28 ` Steven Rostedt
2022-11-22 20:51 ` Nadav Amit
2022-11-29 2:36 ` Nadav Amit
2022-11-29 4:15 ` Steven Rostedt
2022-11-29 4:25 ` Nadav Amit
2022-11-29 15:06 ` Steven Rostedt
2022-11-29 18:02 ` Nadav Amit
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