33 lines
917 B
C
33 lines
917 B
C
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/* This test checks that the stack is properly extended even if
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the first access to a stack location occurs inside a system
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call.
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From Godmar Back. */
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#include <string.h>
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#include <syscall.h>
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#include "tests/vm/sample.inc"
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#include "tests/lib.h"
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#include "tests/main.h"
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void
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test_main (void)
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{
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int handle;
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int slen = strlen (sample);
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char buf2[65536];
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/* Write file via write(). */
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CHECK (create ("sample.txt", slen), "create \"sample.txt\"");
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CHECK ((handle = open ("sample.txt")) > 1, "open \"sample.txt\"");
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CHECK (write (handle, sample, slen) == slen, "write \"sample.txt\"");
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close (handle);
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/* Read back via read(). */
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CHECK ((handle = open ("sample.txt")) > 1, "2nd open \"sample.txt\"");
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CHECK (read (handle, buf2 + 32768, slen) == slen, "read \"sample.txt\"");
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CHECK (!memcmp (sample, buf2 + 32768, slen), "compare written data against read data");
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close (handle);
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}
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