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https://github.com/Zenithsiz/ftmemsim-valgrind.git
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5ecdecdcd3
On powerpc partial unaligned loads of words from partially invalid addresses are OK and could be generated by our translation of ldbrx. Adjust partial_load memcheck tests to allow partial loads of words on powerpc64. Part of resolving bug #386945.
46 lines
986 B
C
46 lines
986 B
C
#include <stdio.h>
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#include <stdlib.h>
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#include <assert.h>
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int main ( void )
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{
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long w; int i; char* p;
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assert(sizeof(long) == sizeof(void*));
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#if defined(__powerpc64__)
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fprintf (stderr, "powerpc64\n"); /* Used to select correct .exp file. */
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#endif
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/* partial load, which --partial-loads-ok=yes should suppress */
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p = calloc( sizeof(long)-1, 1 );
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assert(p);
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w = *(long*)p;
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free(p);
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/* partial but misaligned, ppc64[le] ok, but otherwise cannot be suppressed */
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p = calloc( sizeof(long), 1 );
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assert(p);
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p++;
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w += *(long*)p;
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p--;
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free(p);
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/* partial but not word sized, cannot be suppressed */
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p = calloc( sizeof(short)-1, 1 );
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assert(p);
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w += (long)( *(short*)p );
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free(p);
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/* aligned, word sized, but completely invalid - cannot be suppressed */
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p = calloc( sizeof(long), 1 );
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assert(p);
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free(p);
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w += *(long*)p;
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/* dump result in a way gcc can't understand */
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for (i = 0; i < 64; i++)
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w <<= 1;
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return (int)w;
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}
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