From: Arnd Bergmann <arnd@arndb.de>
To: x86@kernel.org, Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, "H. Peter Anvin" <hpa@zytor.com>
Cc: Nicolas Pitre <nico@linaro.org>, Andi Kleen <ak@linux.intel.com>,
linux-kernel@vger.kernel.org, Arnd Bergmann <arnd@arndb.de>,
Masami Hiramatsu <mhiramat@kernel.org>,
Josef Bacik <jbacik@fb.com>, Alexei Starovoitov <ast@kernel.org>
Subject: [PATCH 3/3] x86: error_inject: make just_return_func globally visible
Date: Fri, 2 Feb 2018 15:56:19 +0100 [thread overview]
Message-ID: <20180202145634.200291-3-arnd@arndb.de> (raw)
In-Reply-To: <20180202145634.200291-1-arnd@arndb.de>
With link time optimizations enabled, I get a link failure:
./ccLbOEHX.ltrans19.ltrans.o: In function `override_function_with_return':
<artificial>:(.text+0x7f3): undefined reference to `just_return_func'
Marking the symbol .globl makes it work as expected.
Fixes: 540adea3809f ("error-injection: Separate error-injection from kprobe")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
arch/x86/lib/error-inject.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/x86/lib/error-inject.c b/arch/x86/lib/error-inject.c
index 7b881d03d0dd..3cdf06128d13 100644
--- a/arch/x86/lib/error-inject.c
+++ b/arch/x86/lib/error-inject.c
@@ -7,6 +7,7 @@ asmlinkage void just_return_func(void);
asm(
".type just_return_func, @function\n"
+ ".globl just_return_func\n"
"just_return_func:\n"
" ret\n"
".size just_return_func, .-just_return_func\n"
--
2.9.0
next prev parent reply other threads:[~2018-02-02 14:59 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-02-02 14:54 [PATCH 0/3] x86 bugfixes for LTO Arnd Bergmann
2018-02-02 14:56 ` [PATCH 1/3] x86: dumpstack: avoid uninitlized variable Arnd Bergmann
2018-02-02 14:56 ` [PATCH 2/3] x86: fix swsusp_arch_resume prototype Arnd Bergmann
2018-02-02 22:37 ` [tip:x86/urgent] x86/power: Fix " tip-bot for Arnd Bergmann
2018-02-08 10:12 ` [PATCH 2/3] x86: fix " Rafael J. Wysocki
2018-02-02 14:56 ` Arnd Bergmann [this message]
2018-02-03 13:21 ` [PATCH 3/3] x86: error_inject: make just_return_func globally visible Masami Hiramatsu
2018-02-13 15:25 ` [tip:x86/urgent] x86/error_inject: Make just_return_func() " tip-bot for Arnd Bergmann
2018-02-02 22:36 ` [tip:x86/urgent] x86/dumpstack: Avoid uninitlized variable tip-bot for Arnd Bergmann
2018-02-05 21:21 ` Arnd Bergmann
2018-02-05 21:39 ` Josh Poimboeuf
2018-02-05 21:48 ` Arnd Bergmann
2018-02-09 22:24 ` [PATCH 0/3] x86 bugfixes for LTO Chris Wilson
2018-02-09 23:00 ` Andi Kleen
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