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From: Ingo Molnar <mingo@kernel.org>
To: Andy Lutomirski <luto@kernel.org>,
	Dave Hansen <dave.hansen@linux.intel.com>
Cc: X86 ML <x86@kernel.org>, Borislav Petkov <bpetkov@suse.de>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	Thomas Gleixner <tglx@linutronix.de>,
	"H. Peter Anvin" <hpa@zytor.com>,
	Peter Zijlstra <a.p.zijlstra@chello.nl>
Subject: Re: [PATCH 0/5] Minor selftests improvements
Date: Tue, 7 Nov 2017 11:13:22 +0100
Message-ID: <20171107101322.jkywyydiummjlvsk@gmail.com> (raw)
In-Reply-To: <cover.1509794321.git.luto@kernel.org>


* Andy Lutomirski <luto@kernel.org> wrote:

> This improves and robustifies the ldt_gdt test and fixes compiler warnings
> in the protection_keys test.
> 
> Andy Lutomirski (5):
>   selftests/x86/protection_keys: Fix syscall NR redefinition warnings
>   selftests/x86/ldt_gdt: Robustify against set_thread_area() and LAR
>     oddities
>   selftests/x86/ldt_gdt: Add infrastructure to test set_thread_area()
>   selftests/x86/ldt_gdt: Run most existing LDT test cases against the
>     GDT as well
>   selftests/x86/ldt_get: Add a few additional tests for limits
> 
>  tools/testing/selftests/x86/ldt_gdt.c         | 88 +++++++++++++++++++++------
>  tools/testing/selftests/x86/protection_keys.c | 24 ++++++--
>  2 files changed, 88 insertions(+), 24 deletions(-)

I'm still getting this build failure when typing 'make' in tools/testing/selftests/x86:

 gcc -m32 -o /home/mingo/tip/tools/testing/selftests/x86/protection_keys_32 -O2 -g -std=gnu99 -pthread -Wall -no-pie  protection_keys.c -lrt -ldl -lm
 In file included from /usr/include/signal.h:57:0,
                  from protection_keys.c:33:
 protection_keys.c: In function ‘signal_handler’:
 protection_keys.c:253:6: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘.’ token
   u64 si_pkey;
       ^
 protection_keys.c:253:6: error: expected expression before ‘.’ token

 ...
 Makefile:47: recipe for target '/home/mingo/tip/tools/testing/selftests/x86/protection_keys_32' failed

Plus I'm also getting these warnings even with all your fixes applied:

 gcc -m32 -o /home/mingo/tip/tools/testing/selftests/x86/mpx-mini-test_32 -O2 -g -std=gnu99 -pthread -Wall -no-pie  mpx-mini-test.c -lrt -ldl -lm
 mpx-mini-test.c: In function ‘insn_test_failed’:
 mpx-mini-test.c:1406:3: warning: array subscript is above array bounds [-Warray-bounds]
    printf("bte[1]: %lx\n", bte->contents[1]);
    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 mpx-mini-test.c:1407:3: warning: array subscript is above array bounds [-Warray-bounds]
    printf("bte[2]: %lx\n", bte->contents[2]);
    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 mpx-mini-test.c:1408:3: warning: array subscript is above array bounds [-Warray-bounds]
    printf("bte[3]: %lx\n", bte->contents[3]);
    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Thanks,

	Ingo

      parent reply index

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-11-04 11:19 Andy Lutomirski
2017-11-04 11:19 ` [PATCH 1/5] selftests/x86/protection_keys: Fix syscall NR redefinition warnings Andy Lutomirski
2017-11-07 10:16   ` [tip:x86/asm] " tip-bot for Andy Lutomirski
2017-11-04 11:19 ` [PATCH 2/5] selftests/x86/ldt_gdt: Robustify against set_thread_area() and LAR oddities Andy Lutomirski
2017-11-07 10:17   ` [tip:x86/asm] " tip-bot for Andy Lutomirski
2017-11-04 11:19 ` [PATCH 3/5] selftests/x86/ldt_gdt: Add infrastructure to test set_thread_area() Andy Lutomirski
2017-11-07 10:17   ` [tip:x86/asm] " tip-bot for Andy Lutomirski
2017-11-04 11:19 ` [PATCH 4/5] selftests/x86/ldt_gdt: Run most existing LDT test cases against the GDT as well Andy Lutomirski
2017-11-07 10:17   ` [tip:x86/asm] " tip-bot for Andy Lutomirski
2017-11-04 11:19 ` [PATCH 5/5] selftests/x86/ldt_get: Add a few additional tests for limits Andy Lutomirski
2017-11-07 10:18   ` [tip:x86/asm] " tip-bot for Andy Lutomirski
2017-11-07 10:13 ` Ingo Molnar [this message]

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