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elf: fix rounding issue

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Matheus
2023-06-26 22:18:49 -03:00
parent 9bdbdb9378
commit c1dc6fd745
1 changed files with 4 additions and 0 deletions
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kernel-src/sys/elf.c
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@@ -84,6 +84,10 @@ static int load(vnode_t *vnode, elfph64_t *ph) {
// zero remaining parts of the first page if needed // zero remaining parts of the first page if needed
if (remaining && msize) { if (remaining && msize) {
size_t remainingmsize = remaining > msize ? msize : remaining; size_t remainingmsize = remaining > msize ? msize : remaining;
size_t pagediff = ROUND_UP(mempos, PAGE_SIZE) - mempos;
if (remainingmsize > ROUND_UP(mempos, PAGE_SIZE) - mempos)
remainingmsize = pagediff;
memset((void *)mempos, 0, remainingmsize); memset((void *)mempos, 0, remainingmsize);
msize -= remainingmsize; msize -= remainingmsize;
mempos += remainingmsize; mempos += remainingmsize;