[OE-core] [PATCH] boost: Improve reproducibility

[Yu, Mingli]

On 2018年06月15日 14:54, Alexander Kanavin wrote:
> Thanks! Mingli, can you try this please?

Sure,

>
> Alex
>
> 2018-06-15 9:44 GMT+03:00 Khem Raj <raj.khem at gmail.com>:
>>
>>
>> On 6/1/18 12:34 PM, Alexander Kanavin wrote:
>>>
>>> On 06/01/2018 09:33 PM, Khem Raj wrote:
>>>>>
>>>>> The .s file is not generated and it does not contain any .file
>>>>> directives. The .o file also does not contain the path. It appears in
>>>>> the final .so library at linking stage.
>>>>
>>>>
>>>> Can you share the linker cmdline ?
>>>
>>>
>>> https://pastebin.com/WK9GVDfj
>>>
>>> Note that of the three assembly-generated object files, only the path to
>>> the first shows up in the .so - because of assembly labels I believe.
>>>
>>
>> Thanks for sharing this. If there is a no file directive in an object file
>> then linker will use whatever is specified on linker cmdline so thats what
>> we see, We should define FILE symbol explicitly for .S files here, for C/C++
>> files compiler does that automatically.
>>
>> Other files dont make a claim in final symbol table since this one file
>> alone has cross referencing to symbols from other objects.
>>
>> Something like this will help

Thanks Khem very much!

Have set .file section in .S file as you suggested, it works.

Thanks,

>>
>> Index: boost_1_67_0/libs/context/src/asm/make_i386_sysv_elf_gas.S
>> ===================================================================
>> --- boost_1_67_0.orig/libs/context/src/asm/make_i386_sysv_elf_gas.S
>> +++ boost_1_67_0/libs/context/src/asm/make_i386_sysv_elf_gas.S
>> @@ -23,7 +23,7 @@
>>    *
>> ----------------------------------------------------------------------------------
>> *
>>    *                  *
>>
>> ****************************************************************************************/
>> -
>> +.file "make_i386_sysv_elf_gas.S"
>>   .text
>>   .globl make_fcontext
>>   .align 2
>> Index: boost_1_67_0/libs/context/src/asm/make_x86_64_sysv_elf_gas.S
>> ===================================================================
>> --- boost_1_67_0.orig/libs/context/src/asm/make_x86_64_sysv_elf_gas.S
>> +++ boost_1_67_0/libs/context/src/asm/make_x86_64_sysv_elf_gas.S
>> @@ -23,7 +23,7 @@
>>    *
>> ----------------------------------------------------------------------------------
>> *
>>    *                  *
>>
>> ****************************************************************************************/
>> -
>> +.file "make_x86_64_sysv_elf_gas.S"
>>   .text
>>   .globl make_fcontext
>>   .type make_fcontext, at function
>>
>>
>>> Alex
>>
>> --
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>