topic Re: S12Z: attribute ((aligned (4))) has no effect in CodeWarrior for MCU

S12Z: attribute ((aligned (4))) has no effect

pascalbrand — Wed, 23 Aug 2017 08:33:44 GMT

Hello,

Using CodeWarrior for MCU, v10.7, on S12Z target, I am not able to aligned global variables as specified in the documentation:

#pragma cpp1x on
int foo __attribute__ ((aligned (4)));
void main(void) {
static_assert(__alignof__(foo) == 1, "SHOULD BE WRONG"); /* compilation OK. But it should fail */
static_assert(__alignof__(foo) == 4, "SHOULD BE OK"); /* compilation failed. But it should be ok? */
}

compiled with

mwccs12lisa.exe alignment.c

results in the compilation error

Compiler:
# File: alignment.c
# --------------------
# 5: static_assert(__alignof__(foo) == 4, "SHOULD BE OK"); /* compilation failed. But it should be ok? */
# Error: ^^^^^^^^^^^^^^
# static assert check 'SHOULD BE OK' failed

What did I miss?

Thanks for your support,
Pascal.

Re: S12Z: attribute ((aligned (4))) has no effect

ZhangJennie — Fri, 25 Aug 2017 05:52:46 GMT

Hello Pascal,

Can you please send me your demo project for your problem?

Thanks.

Best Regards,

Jennie Zhang

Re: S12Z: attribute ((aligned (4))) has no effect

pascalbrand — Fri, 25 Aug 2017 08:27:07 GMT

Here is a 7zip of my project.

Thanks for your support,

Pascal;

Re: S12Z: attribute ((aligned (4))) has no effect

pascalbrand — Mon, 28 Aug 2017 15:10:13 GMT

Hello ZhangJennie,

Have you been able to reproduce what I am describing?

Do you need extra info?

Thanks for your support,

Pascal.

Re: S12Z: attribute ((aligned (4))) has no effect

ZhangJennie — Tue, 29 Aug 2017 07:52:37 GMT

Hi Pascal.

Sorry for the late, I was not in office these days.

I tested your project on my side and I reproduced your problem.

I will contact developer for it.

Will keep you informed.

Best Regards,

Jennie Zhang

Re: S12Z: attribute ((aligned (4))) has no effect

pascalbrand — Mon, 18 Sep 2017 08:32:37 GMT

Hello ZhangJennie,

any news?

Thanks,

Pascal.

Re: S12Z: attribute ((aligned (4))) has no effect

ZhangJennie — Tue, 19 Sep 2017 09:00:33 GMT

Hi Pascal.

I reproduced your problem and escalated this problem to development team.with report number CMPLG-41

I will keep you informed if I get any update there.

Have a great day,
Jennie Zhang

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topic Re: S12Z: __attribute__ ((aligned (4))) has no effect in CodeWarrior for MCU

S12Z: __attribute__ ((aligned (4))) has no effect

Re: S12Z: __attribute__ ((aligned (4))) has no effect

Re: S12Z: __attribute__ ((aligned (4))) has no effect

Re: S12Z: __attribute__ ((aligned (4))) has no effect

Re: S12Z: __attribute__ ((aligned (4))) has no effect

Re: S12Z: __attribute__ ((aligned (4))) has no effect

Re: S12Z: __attribute__ ((aligned (4))) has no effect

topic Re: S12Z: attribute ((aligned (4))) has no effect in CodeWarrior for MCU

S12Z: attribute ((aligned (4))) has no effect

Re: S12Z: attribute ((aligned (4))) has no effect

Re: S12Z: attribute ((aligned (4))) has no effect

Re: S12Z: attribute ((aligned (4))) has no effect

Re: S12Z: attribute ((aligned (4))) has no effect

Re: S12Z: attribute ((aligned (4))) has no effect

Re: S12Z: attribute ((aligned (4))) has no effect