Changeset 3b8a990 in mainline

Timestamp:

2012-11-07T21:41:57Z (11 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

0aae87a6

Parents:

01029fc

Message:

Create also the uspace thread stacks with guard pages and late reservations.

Files:

• kernel/generic/src/proc/program.c (modified) (1 diff)
• uspace/lib/c/generic/thread.c (modified) (1 diff)

kernel/generic/src/proc/program.c

@@ -81 +81 @@
         uintptr_t virt = USTACK_ADDRESS;
         as_area_t *area = as_area_create(as,
-            AS_AREA_READ | AS_AREA_WRITE | AS_AREA_CACHEABLE,
-            STACK_SIZE, AS_AREA_ATTR_NONE, &anon_backend, NULL, &virt, 0);
+            AS_AREA_READ | AS_AREA_WRITE | AS_AREA_CACHEABLE | AS_AREA_GUARD |
+            AS_AREA_LATE_RESERVE, STACK_SIZE, AS_AREA_ATTR_NONE, &anon_backend,
+            NULL, &virt, 0);
         if (!area) {
                 task_destroy(prg->task);

uspace/lib/c/generic/thread.c

@@ -103 +103 @@
         size_t stack_size = getpagesize() * THREAD_INITIAL_STACK_PAGES;
         void *stack = as_area_create(AS_AREA_ANY, stack_size,
-            AS_AREA_READ | AS_AREA_WRITE | AS_AREA_CACHEABLE);
+            AS_AREA_READ | AS_AREA_WRITE | AS_AREA_CACHEABLE | AS_AREA_GUARD |
+            AS_AREA_LATE_RESERVE);
         if (stack == AS_MAP_FAILED) {
                 free(uarg);