How can I stub __attribute__ (((interrupt("IRQ"))) ?

[Vitaliy Bortsov]

Hello!
I work on embedded GCC ARM project. And want to call IRQ subroutines (written in C/C++) from test code to test behavior.

There are compilations warnings: halcogen/include/sys_vim.h:30:75: warning: 'interrupt' attribute directive ignored [-Wattributes]
 extern void mibspi5Level1Interrupt(void) __attribute__ ((interrupt("IRQ")));

Test works, but I want to stub __attribute__ (((interrupt("IRQ"))) to compile without warnings.

Is it possible?

Regards,
  Vitaliy

[James Grenning]

Hello Vitaliy

I suggest you use a forced include that contains this macro

#define __attribute__(x)

Here is an article about how to do it.
http://www.renaissancesoftware.net/blog/archives/249

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[Vitaliy Bortsov]

Hello, James.

There are problems: too many errors such:

/usr/lib/gcc/i686-pc-cygwin/4.9.3/include/xopintrin.h: In function '__m256d _mm256_frcz_pd(__m256d)':
/usr/lib/gcc/i686-pc-cygwin/4.9.3/include/xopintrin.h:772:58: error: cannot convert '__m256d {aka double}' to '__vector(4) double' for argument '1' to '__vector(4) double __builtin_ia32_vfrczpd256(__vector(4) double)'
   return (__m256d) __builtin_ia32_vfrczpd256 ((__v4df)__A);

Original string at line 769 from /usr/lib/gcc/i686-pc-cygwin/4.9.3/include/xopintrin.h looks like:

extern __inline __m256d __attribute__((__gnu_inline__, __always_inline__, __artificial__))
_mm256_frcz_pd (__m256d __A)
{
  return (__m256d) __builtin_ia32_vfrczpd256 ((__v4df)__A);
}

__attribute__ is very special keyword in GCC and cannot be stubbed to nothing

I think that I cannot do something to silent compiling (except option -Wno-attributes).

Regards,
  Vitaliy


среда, 14 октября 2015 г., 1:37:32 UTC+5 пользователь James Grenning написал:

[James Grenning]

Does -Wno-attributes work?

You next thing to do is to move those problem constructs into macros or
helper functions.

Also think Lasagna code. Can there be a layer in your code that the
non-portable constructs are forbidden to cross? Can the code below the
layer be made small and conditional logic free so that only testing on
the target (then leaving the code alone) is good enough?

James

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