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To: Khem Raj <raj.khem@gmail.com>
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From: "Yu, Mingli" <mingli.yu@windriver.com>
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Date: Wed, 6 Mar 2019 14:02:58 +0800
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Cc: Patches and discussions about the oe-core layer
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Subject: Re: [PATCH] gcc-sanitizers: fix the build with -fno-omit-frame-pointer
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On 2019年03月06日 13:34, Khem Raj wrote:
> On Tue, Mar 5, 2019 at 8:24 PM <mingli.yu@windriver.com> wrote:
>>
>> From: Mingli Yu <Mingli.Yu@windriver.com>
>>
>> Fix the below build issue for gcc-sanitizers when
>> both -mthumb and -fno-omit-frame-pointer configured
>> for arm.
>> | ../../../../libsanitizer/sanitizer_common/sanitizer_linux.cc: In function 'sanitizer::uptr sanitizer::internal_clone(int (*)(void*), void*, int, void*, int*, void*, int*)':
>> | ../../../../libsanitizer/sanitizer_common/sanitizer_linux.cc:1540:1: error: r7 cannot be used in asm here
>> }
>>
>> Reference: https://reviews.llvm.org/D50180
>>
>> Signed-off-by: Mingli Yu <Mingli.Yu@windriver.com>
>> ---
>>   meta/recipes-devtools/gcc/gcc-sanitizers_8.2.bb | 1 +
>>   1 file changed, 1 insertion(+)
>>
>> diff --git a/meta/recipes-devtools/gcc/gcc-sanitizers_8.2.bb b/meta/recipes-devtools/gcc/gcc-sanitizers_8.2.bb
>> index f3c7058..2f89c86 100644
>> --- a/meta/recipes-devtools/gcc/gcc-sanitizers_8.2.bb
>> +++ b/meta/recipes-devtools/gcc/gcc-sanitizers_8.2.bb
>> @@ -5,3 +5,4 @@ require gcc-sanitizers.inc
>>   # sanitizer_linux.s:5749: Error: lo register required -- `ldr ip,[sp],#8'
>>   ARM_INSTRUCTION_SET_armv4 = "arm"
>>   ARM_INSTRUCTION_SET_armv5 = "arm"
>> +TARGET_CFLAGS_remove_arm = "${@bb.utils.contains('TUNE_CCARGS', '-mthumb', '-fno-omit-frame-pointer', '', d)}"
>
> what target does it happen with ? since we set arm ISA for armv5 and
> v4 it must be something else

It is armv7vethf.

>