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Differential D33099 Diff 98886 sys/arm64/arm64/minidump_machdep.c

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sys/arm64/arm64/minidump_machdep.c

Show First 20 Lines • Show All 297 Lines • ▼ Show 20 Lines if ((l1e & ATTR_DESCR_MASK) == L1_BLOCK) {
/* /*
* Handle a 1GB block mapping: write out 512 fake L2 * Handle a 1GB block mapping: write out 512 fake L2
* pages. * pages.
*/ */
pa = (l1e & ~ATTR_MASK) | (va & L1_OFFSET); pa = (l1e & ~ATTR_MASK) | (va & L1_OFFSET);
for (i = 0; i < Ln_ENTRIES; i++) { for (i = 0; i < Ln_ENTRIES; i++) {
for (j = 0; j < Ln_ENTRIES; j++) { for (j = 0; j < Ln_ENTRIES; j++) {
tmpbuffer[j] = pa + i * L2_SIZE + tmpbuffer[j] = (pa + i * L2_SIZE +
j * PAGE_SIZE | ATTR_DEFAULT | j * PAGE_SIZE) | ATTR_DEFAULT |
L3_PAGE; L3_PAGE;
} }
error = blk_write(di, (char *)&tmpbuffer, 0, error = blk_write(di, (char *)&tmpbuffer, 0,
PAGE_SIZE); PAGE_SIZE);
if (error) if (error)
goto fail; goto fail;
} }
/* flush, in case we reuse tmpbuffer in the same block*/ /* flush, in case we reuse tmpbuffer in the same block*/
error = blk_flush(di); error = blk_flush(di);
if (error) if (error)
goto fail; goto fail;
bzero(&tmpbuffer, sizeof(tmpbuffer)); bzero(&tmpbuffer, sizeof(tmpbuffer));
va += L1_SIZE - L2_SIZE; va += L1_SIZE - L2_SIZE;
} else if ((l2e & ATTR_DESCR_MASK) == L2_BLOCK) { } else if ((l2e & ATTR_DESCR_MASK) == L2_BLOCK) {
pa = (l2e & ~ATTR_MASK) | (va & L2_OFFSET); pa = (l2e & ~ATTR_MASK) | (va & L2_OFFSET);
/* Generate fake l3 entries based upon the l1 entry */ /* Generate fake l3 entries based upon the l1 entry */
for (i = 0; i < Ln_ENTRIES; i++) { for (i = 0; i < Ln_ENTRIES; i++) {
tmpbuffer[i] = pa + (i * PAGE_SIZE) | tmpbuffer[i] = (pa + i * PAGE_SIZE) |
ATTR_DEFAULT | L3_PAGE; ATTR_DEFAULT | L3_PAGE;
} }
error = blk_write(di, (char *)&tmpbuffer, 0, PAGE_SIZE); error = blk_write(di, (char *)&tmpbuffer, 0, PAGE_SIZE);
if (error) if (error)
goto fail; goto fail;
/* flush, in case we reuse fakepd in the same block */ /* flush, in case we reuse fakepd in the same block */
error = blk_flush(di); error = blk_flush(di);
if (error) if (error)
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