* [tip:tracing/syscalls] tracing/syscalls: select kallsysms
[not found] <1237151439-6755-4-git-send-email-fweisbec@gmail.com>
@ 2009-03-16 8:19 ` Frederic Weisbecker
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From: Frederic Weisbecker @ 2009-03-16 8:19 UTC (permalink / raw)
To: linux-tip-commits; +Cc: linux-kernel, hpa, mingo, fweisbec, akpm, tglx, mingo
Commit-ID: 0ea1c4156bf9e2eb370cc5c6fa6eb112bd844dec
Gitweb: http://git.kernel.org/tip/0ea1c4156bf9e2eb370cc5c6fa6eb112bd844dec
Author: Frederic Weisbecker <fweisbec@gmail.com>
AuthorDate: Sun, 15 Mar 2009 22:10:38 +0100
Commit: Ingo Molnar <mingo@elte.hu>
CommitDate: Mon, 16 Mar 2009 09:13:17 +0100
tracing/syscalls: select kallsysms
Syscall tracing must select kallsysms.
The arch code builds a table to find the syscall metadata by syscall
number. It needs the syscalls names resolution from the symbol table
to know which name found on the syscalls metadatas match a function
pointer from the arch sys_call_table.
Reported-by: Andrew Morton <akpm@linux-foundation.org>
Reported-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <1237151439-6755-4-git-send-email-fweisbec@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
kernel/trace/Kconfig | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/kernel/trace/Kconfig b/kernel/trace/Kconfig
index 95a0ad1..b0a46f8 100644
--- a/kernel/trace/Kconfig
+++ b/kernel/trace/Kconfig
@@ -182,6 +182,7 @@ config FTRACE_SYSCALLS
bool "Trace syscalls"
depends on HAVE_FTRACE_SYSCALLS
select TRACING
+ select KALLSYMS
help
Basic tracer to catch the syscall entry and exit events.
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