Re: Patches

["John E. Davis" <davis@xxxxxxxxxxxxx>]

Jörg Sommer <joerg@xxxxxxxxxxxx> wrote:
>     % cat cast-test.c
>     int main(void)
>    {
>         char buf[10] = { 0 };
>         int *a = (int*)&buf[1];
>         *a = 0x7a7a7a;
>
>         return 0;
>    }
>     % gcc -Wall -Wcast-align cast-test.c -o cast-test
>     cast-test.c: In function `main':
>     cast-test.c:4: warning: cast increases required alignment of target type
>     % ./cast-test
>     Unaligned access pid=398552 <cast-test> va=0x11fffbfe1 pc=0x12000112c ra=0x1200010ac inst=0xb0220000

Do you have an example of where this actually happens in jed?  I
regard it as a bug and would like to fix it.  I realize that a cast
such as (double*)(char*) might generate a compiler warning, but it is
only an error when the pointer being cast is actually unaligned.

Thanks,
--John

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