From: kbuild test robot <fengguang.wu@intel.com>
To: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: kbuild-all@01.org, linux-kernel@vger.kernel.org,
Ingo Molnar <mingo@kernel.org>
Subject: arch/x86//kernel/ftrace.c:35:3: error: #error The following combination is not supported: ((compiler missing -mfentry) || (CONFIG_X86_32 and !CONFIG_DYNAMIC_FTRACE)) && CONFIG_FUNCTION_GRAPH_TRACER && CONFIG_CC_OPTIMIZE_FOR_SIZE
Date: Sun, 16 Apr 2017 09:20:50 +0800 [thread overview]
Message-ID: <201704160947.iSmcgQi7%fengguang.wu@intel.com> (raw)
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Hi Josh,
FYI, the error/warning still remains.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: d5ff0814fda50f0306e102f39640cf5bb76af08e
commit: 3f135e57a4f76d24ae8d8a490314331f0ced40c5 x86/build: Mostly disable '-maccumulate-outgoing-args'
date: 2 weeks ago
config: x86_64-randconfig-s1-04160822 (attached as .config)
compiler: gcc-4.4 (Debian 4.4.7-8) 4.4.7
reproduce:
git checkout 3f135e57a4f76d24ae8d8a490314331f0ced40c5
# save the attached .config to linux build tree
make ARCH=x86_64
All errors (new ones prefixed by >>):
>> arch/x86//kernel/ftrace.c:35:3: error: #error The following combination is not supported: ((compiler missing -mfentry) || (CONFIG_X86_32 and !CONFIG_DYNAMIC_FTRACE)) && CONFIG_FUNCTION_GRAPH_TRACER && CONFIG_CC_OPTIMIZE_FOR_SIZE
vim +35 arch/x86//kernel/ftrace.c
29 #include <asm/ftrace.h>
30 #include <asm/nops.h>
31
32 #if defined(CONFIG_FUNCTION_GRAPH_TRACER) && \
33 !defined(CC_USING_FENTRY) && \
34 !defined(CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE)
> 35 # error The following combination is not supported: ((compiler missing -mfentry) || (CONFIG_X86_32 and !CONFIG_DYNAMIC_FTRACE)) && CONFIG_FUNCTION_GRAPH_TRACER && CONFIG_CC_OPTIMIZE_FOR_SIZE
36 #endif
37
38 #ifdef CONFIG_DYNAMIC_FTRACE
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation
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next reply other threads:[~2017-04-16 1:21 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-04-16 1:20 kbuild test robot [this message]
2017-04-17 13:33 ` arch/x86//kernel/ftrace.c:35:3: error: #error The following combination is not supported: ((compiler missing -mfentry) || (CONFIG_X86_32 and !CONFIG_DYNAMIC_FTRACE)) && CONFIG_FUNCTION_GRAPH_TRACER && CONFIG_CC_OPTIMIZE_FOR_SIZE Josh Poimboeuf
2017-04-18 18:52 ` Andi Kleen
2017-04-18 20:19 ` Josh Poimboeuf
2017-04-18 20:25 ` Andi Kleen
2017-04-18 21:44 ` [PATCH] x86/build: convert function graph '-Os' error to warning Josh Poimboeuf
2017-04-19 8:07 ` [tip:x86/urgent] " tip-bot for Josh Poimboeuf
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