#include "runtime.h"
#include "os.h"
#include "globals.h"
+#include "interr.h"
#include "validate.h"
+#include "interr.h" /* for declaration of lose */
+
static void
ensure_space(lispobj *start, unsigned long size)
{
if (os_validate((os_vm_address_t)start,(os_vm_size_t)size)==NULL) {
- fprintf(stderr,
- "ensure_space: failed to validate %ld bytes at 0x%08lx\n",
- size,
- (unsigned long)start);
- fprintf(stderr,
- "(hint: Try \"ulimit -a\"; maybe you should increase memory limits.)\n");
- exit(1);
+ fprintf(stderr,
+ "ensure_space: failed to validate %ld bytes at 0x%08lx\n",
+ size,
+ (unsigned long)start);
+ fprintf(stderr,
+ "(hint: Try \"ulimit -a\"; maybe you should increase memory limits.)\n");
+ exit(1);
+ }
+}
+
+os_vm_address_t undefined_alien_address = 0;
+
+static void
+ensure_undefined_alien(void) {
+ os_vm_address_t start = os_validate(NULL, os_vm_page_size);
+ if (start) {
+ os_protect(start, os_vm_page_size, OS_VM_PROT_NONE);
+ undefined_alien_address = start;
+ } else {
+ lose("could not allocate guard page for undefined alien\n");
}
}
printf("validating memory ...");
fflush(stdout);
#endif
-
+
ensure_space( (lispobj *)READ_ONLY_SPACE_START, READ_ONLY_SPACE_SIZE);
ensure_space( (lispobj *)STATIC_SPACE_START , STATIC_SPACE_SIZE);
#ifdef LISP_FEATURE_GENCGC
- ensure_space( (lispobj *)DYNAMIC_SPACE_START , DYNAMIC_SPACE_SIZE);
+ ensure_space( (lispobj *)DYNAMIC_SPACE_START , dynamic_space_size);
#else
- ensure_space( (lispobj *)DYNAMIC_0_SPACE_START , DYNAMIC_SPACE_SIZE);
- ensure_space( (lispobj *)DYNAMIC_1_SPACE_START , DYNAMIC_SPACE_SIZE);
+ ensure_space( (lispobj *)DYNAMIC_0_SPACE_START, dynamic_space_size);
+ ensure_space( (lispobj *)DYNAMIC_1_SPACE_START, dynamic_space_size);
+#endif
+
+#ifdef LISP_FEATURE_LINKAGE_TABLE
+ ensure_space( (lispobj *)LINKAGE_TABLE_SPACE_START,
+ LINKAGE_TABLE_SPACE_SIZE);
+#endif
+
+#ifdef LISP_FEATURE_OS_PROVIDES_DLOPEN
+ ensure_undefined_alien();
#endif
#ifdef PRINTNOISE
#endif
}
-void protect_control_stack_guard_page(pid_t t_id, int protect_p) {
- struct thread *th = find_thread_by_pid(t_id);
- os_protect(CONTROL_STACK_GUARD_PAGE(th),
- os_vm_page_size,protect_p ?
- (OS_VM_PROT_READ|OS_VM_PROT_EXECUTE) : OS_VM_PROT_ALL);
+static inline void
+protect_page(void *page, int protect_p, os_vm_prot_t flags) {
+ os_protect(page, os_vm_page_size, protect_p ?
+ flags : OS_VM_PROT_ALL);
}
+#define DEF_PROTECT_PAGE(name,page_name,flags) \
+ void \
+ protect_##name(int protect_p, struct thread *thread) { \
+ if (!thread) \
+ thread = arch_os_get_current_thread(); \
+ protect_page(page_name(thread), protect_p, flags); \
+ }
+
+DEF_PROTECT_PAGE(control_stack_hard_guard_page,
+ CONTROL_STACK_HARD_GUARD_PAGE,
+ OS_VM_PROT_NONE)
+DEF_PROTECT_PAGE(control_stack_guard_page,
+ CONTROL_STACK_GUARD_PAGE,
+ OS_VM_PROT_READ|OS_VM_PROT_EXECUTE)
+DEF_PROTECT_PAGE(control_stack_return_guard_page,
+ CONTROL_STACK_RETURN_GUARD_PAGE,
+ OS_VM_PROT_READ|OS_VM_PROT_EXECUTE)
+
+DEF_PROTECT_PAGE(binding_stack_hard_guard_page,
+ BINDING_STACK_HARD_GUARD_PAGE,
+ OS_VM_PROT_NONE)
+DEF_PROTECT_PAGE(binding_stack_guard_page,
+ BINDING_STACK_GUARD_PAGE,
+ OS_VM_PROT_NONE)
+DEF_PROTECT_PAGE(binding_stack_return_guard_page,
+ BINDING_STACK_RETURN_GUARD_PAGE,
+ OS_VM_PROT_NONE)
+
+DEF_PROTECT_PAGE(alien_stack_hard_guard_page,
+ ALIEN_STACK_HARD_GUARD_PAGE,
+ OS_VM_PROT_NONE)
+DEF_PROTECT_PAGE(alien_stack_guard_page,
+ ALIEN_STACK_GUARD_PAGE,
+ OS_VM_PROT_NONE)
+DEF_PROTECT_PAGE(alien_stack_return_guard_page,
+ ALIEN_STACK_RETURN_GUARD_PAGE,
+ OS_VM_PROT_NONE)