Author: marcel
Date: Thu Nov 17 15:51:03 2011
New Revision: 227629
URL: http://svn.freebsd.org/changeset/base/227629
Log:
Wire the kernel text RWX, rather than RX. We're not quite ready
for having kernel text non-writable, because we still need to
apply relocations. On top of that, the PBVM page table has all
pages marked as RWX, so it's an inconsistency to begin with.
Modified:
head/sys/boot/ia64/common/exec.c
Modified: head/sys/boot/ia64/common/exec.c
==============================================================================
--- head/sys/boot/ia64/common/exec.c Thu Nov 17 15:49:42 2011
(r227628)
+++ head/sys/boot/ia64/common/exec.c Thu Nov 17 15:51:03 2011
(r227629)
@@ -187,7 +187,7 @@ mmu_setup_paged(struct bootinfo *bi)
pa = ia64_va2pa(ia64_text_start, &ia64_text_size);
ia64_text_size = sz; /* XXX */
shft = sz2shft(ia64_text_start, ia64_text_size);
- shft = mmu_wire(ia64_text_start, (uintptr_t)pa, shft, PTE_AR_RX);
+ shft = mmu_wire(ia64_text_start, (uintptr_t)pa, shft, PTE_AR_RWX);
ia64_copyin(&shft, (uintptr_t)&bi->bi_text_mapped, 4);
/* Wire as much of the data segment as well. */
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