[Arm64/Unix] Add 64K page support (#10981)

* [Arm64/Unix] Support 64K pages

* GC move GCToOSInterface::Initialize() into InitializeGarbageCollector()

1 files changed, 6 insertions, 6 deletions

diff --git a/src/pal/src/exception/signal.cpp b/src/pal/src/exception/signal.cpp
index 57ae62ea21..b82daca53d 100644
--- a/src/pal/src/exception/signal.cpp
+++ b/src/pal/src/exception/signal.cpp
@@ -152,13 +152,13 @@ BOOL EnsureSignalAlternateStack()
 
         // We include the size of the SignalHandlerWorkerReturnPoint in the alternate stack size since the 
         // context contained in it is large and the SIGSTKSZ was not sufficient on ARM64 during testing.
-        int altStackSize = SIGSTKSZ + ALIGN_UP(sizeof(SignalHandlerWorkerReturnPoint), 16) + VIRTUAL_PAGE_SIZE;
+        int altStackSize = SIGSTKSZ + ALIGN_UP(sizeof(SignalHandlerWorkerReturnPoint), 16) + GetVirtualPageSize();
         void* altStack;
-        int st = posix_memalign(&altStack, VIRTUAL_PAGE_SIZE, altStackSize);
+        int st = posix_memalign(&altStack, GetVirtualPageSize(), altStackSize);
         if (st == 0)
         {
             // create a guard page for the alternate stack
-            st = mprotect(altStack, VIRTUAL_PAGE_SIZE, PROT_NONE);
+            st = mprotect(altStack, GetVirtualPageSize(), PROT_NONE);
             if (st == 0)
             {
                 stack_t ss;
@@ -169,7 +169,7 @@ BOOL EnsureSignalAlternateStack()
                 if (st != 0)
                 {
                     // Installation of the alternate stack failed, so revert the guard page protection
-                    int st2 = mprotect(altStack, VIRTUAL_PAGE_SIZE, PROT_READ | PROT_WRITE);
+                    int st2 = mprotect(altStack, GetVirtualPageSize(), PROT_READ | PROT_WRITE);
                     _ASSERTE(st2 == 0);
                 }
             }
@@ -203,7 +203,7 @@ void FreeSignalAlternateStack()
     int st = sigaltstack(&ss, &oss);
     if ((st == 0) && (oss.ss_flags != SS_DISABLE))
     {
-        int st = mprotect(oss.ss_sp, VIRTUAL_PAGE_SIZE, PROT_READ | PROT_WRITE);
+        int st = mprotect(oss.ss_sp, GetVirtualPageSize(), PROT_READ | PROT_WRITE);
         _ASSERTE(st == 0);
         free(oss.ss_sp);
     }
@@ -436,7 +436,7 @@ static void sigsegv_handler(int code, siginfo_t *siginfo, void *context)
 
         // If the failure address is at most one page above or below the stack pointer, 
         // we have a stack overflow. 
-        if ((failureAddress - (sp - VIRTUAL_PAGE_SIZE)) < 2 * VIRTUAL_PAGE_SIZE)
+        if ((failureAddress - (sp - GetVirtualPageSize())) < 2 * GetVirtualPageSize())
         {
             (void)write(STDERR_FILENO, StackOverflowMessage, sizeof(StackOverflowMessage) - 1);
             PROCAbort();