On Friday 2009-05-29 13:14, sachin sanap wrote:
>Sorry dint inform you earlier that iam on 32bit ARM machine.
>The real problem is the kernel is computing the alignment on
>__alignof__(struct _xt_align) and the userspace ebtables is computing
>it on __alignof__(struct ebt_entry_target) , which are two different
>structs.
>
>I have the following patch for ebtables-v2.0.8-2 that fixes this.
>@@ -37,7 +38,7 @@
> #define EXEC_STYLE_DAEMON 1
>
> #ifndef EBT_MIN_ALIGN
>-#define EBT_MIN_ALIGN (__alignof__(struct ebt_entry_target))
>+#define EBT_MIN_ALIGN (__alignof__(struct _xt_align))
> #endif
> #define EBT_ALIGN(s) (((s) + (EBT_MIN_ALIGN-1)) & ~(EBT_MIN_ALIGN-1))
> #define ERRORMSG_MAXLEN 128
Can you run this, just to give me a better understanding of ARM32?
#include <stdio.h>
#include <stdint.h>
#define p(t) \
printf(#t ": %zu\n", __alignof__(t));
int main(void)
{
p(uint8_t);
p(uint16_t);
p(uint32_t);
p(uint64_t);
p(float);
p(double);
p(void *);
p(void (*)(void));
}
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