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We missed the size multiplier for memset()

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In doing so, only a small portion of memory would have reliably been set
to zero; specifically, just the first element!

This change should resolve some intermittent test failures to guarantee
that all memory be zeroed.
This commit is contained in:
Peter Evans 2017-12-15 21:22:22 -06:00
parent ed1a7b3278
commit 3f3210205f
1 changed files with 3 additions and 3 deletions
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6
src/vm_segment.c
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@ -40,7 +40,7 @@ vm_segment_create(size_t size)
// We should zero out memory and make explicit that any new segment
// begins life in that state.
memset(segment->memory, 0, sizeof(vm_8bit));
memset(segment->memory, 0, sizeof(vm_8bit) * size);
segment->read_table = malloc(sizeof(vm_segment_read_fn) * size);
if (segment->read_table == NULL) {
@ -59,8 +59,8 @@ vm_segment_create(size_t size)
// read/write mapper code to attempt to a run a function with
// garbage. We could have undefined garbage! We can only properly
// work with defined garbage.
memset(segment->read_table, (int)NULL, sizeof(vm_segment_read_fn));
memset(segment->write_table, (int)NULL, sizeof(vm_segment_write_fn));
memset(segment->read_table, (int)NULL, sizeof(vm_segment_read_fn) * size);
memset(segment->write_table, (int)NULL, sizeof(vm_segment_write_fn) * size);
segment->size = size;