28 lines
615 B
C
28 lines
615 B
C
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// test reads and writes to a large bss
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#include <inc/lib.h>
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#define ARRAYSIZE (1024*1024)
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uint32_t bigarray[ARRAYSIZE];
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void
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umain(int argc, char **argv)
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{
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int i;
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cprintf("Making sure bss works right...\n");
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for (i = 0; i < ARRAYSIZE; i++)
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if (bigarray[i] != 0)
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panic("bigarray[%d] isn't cleared!\n", i);
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for (i = 0; i < ARRAYSIZE; i++)
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bigarray[i] = i;
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for (i = 0; i < ARRAYSIZE; i++)
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if (bigarray[i] != i)
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panic("bigarray[%d] didn't hold its value!\n", i);
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cprintf("Yes, good. Now doing a wild write off the end...\n");
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bigarray[ARRAYSIZE+1024] = 0;
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panic("SHOULD HAVE TRAPPED!!!");
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}
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