1.0.22.15: 16 byte align assembly routines on x86 and x86-64

[sbcl.git] / src / runtime / x86-darwin-os.c

diff --git a/src/runtime/x86-darwin-os.c b/src/runtime/x86-darwin-os.c
index 4983871..bb9212e 100644 (file)
--- a/src/runtime/x86-darwin-os.c
+++ b/src/runtime/x86-darwin-os.c
@@ -254,18 +254,10 @@ void signal_emulation_wrapper(x86_thread_state32_t *thread_state,
      */
 
     os_context_t *context;
-#if __DARWIN_UNIX03
-    struct __darwin_mcontext32 *regs;
-#else
-    struct mcontext *regs;
-#endif
+    mcontext_t *regs;
 
     context = (os_context_t*) os_validate(0, sizeof(os_context_t));
-#if __DARWIN_UNIX03
-    regs = (struct __darwin_mcontext32*) os_validate(0, sizeof(struct __darwin_mcontext32));
-#else
-    regs = (struct mcontext*) os_validate(0, sizeof(struct mcontext));
-#endif
+    regs = (mcontext_t*) os_validate(0, sizeof(mcontext_t));
     context->uc_mcontext = regs;
 
     /* when BSD signals are fired, they mask they signals in sa_mask
@@ -285,11 +277,7 @@ void signal_emulation_wrapper(x86_thread_state32_t *thread_state,
     update_thread_state_from_context(thread_state, float_state, context);
 
     os_invalidate((os_vm_address_t)context, sizeof(os_context_t));
-#if __DARWIN_UNIX03
-    os_invalidate((os_vm_address_t)regs, sizeof(struct __darwin_mcontext32));
-#else
-    os_invalidate((os_vm_address_t)regs, sizeof(struct mcontext));
-#endif
+    os_invalidate((os_vm_address_t)regs, sizeof(mcontext_t));
 
     /* Trap to restore the signal context. */
     asm volatile ("movl %0, %%eax; movl %1, %%ebx; .long 0xffff0b0f"
@@ -312,6 +300,7 @@ void call_handler_on_thread(mach_port_t thread,
     /* Initialize the new state */
     new_state = *thread_state;
     open_stack_allocation(&new_state);
+    stack_allocate(&new_state, 256);
     /* Save old state */
     save_thread_state = (x86_thread_state32_t *)stack_allocate(&new_state, sizeof(*save_thread_state));
     *save_thread_state = *thread_state;
@@ -386,7 +375,7 @@ control_stack_exhausted_handler(int signal, siginfo_t *siginfo, void *void_conte
     os_context_t *context = arch_os_get_context(&void_context);
 
     arrange_return_to_lisp_function
-        (context, SymbolFunction(CONTROL_STACK_EXHAUSTED_ERROR));
+        (context, StaticSymbolFunction(CONTROL_STACK_EXHAUSTED_ERROR));
 }
 
 void
@@ -394,7 +383,7 @@ undefined_alien_handler(int signal, siginfo_t *siginfo, void *void_context) {
     os_context_t *context = arch_os_get_context(&void_context);
 
     arrange_return_to_lisp_function
-        (context, SymbolFunction(UNDEFINED_ALIEN_VARIABLE_ERROR));
+        (context, StaticSymbolFunction(UNDEFINED_ALIEN_VARIABLE_ERROR));
 }
 
 kern_return_t
@@ -453,27 +442,6 @@ catch_exception_raise(mach_port_t exception_port,
             protect_control_stack_return_guard_page_thread(0, th);
             break;
         }
-        /* Get vm_region info */
-        region_addr = (vm_address_t)code_vector[1];
-        info_count = VM_REGION_BASIC_INFO_COUNT;
-        if ((ret = vm_region(mach_task_self(),
-                             &region_addr,
-                             &region_size,
-                             VM_REGION_BASIC_INFO,
-                             (vm_region_info_t)&region_info,
-                             &info_count,
-                             &region_name)))
-            lose("vm_region (VM_REGION_BASIC_INFO) failed failed %d\n", ret);
-        /* Check if still protected */
-        if ((region_info.protection & OS_VM_PROT_ALL) == 0) {
-          /* KLUDGE:
-           * If two threads fault on the same page, the protection
-           * is cleared as the first thread runs memory_fault_handler.
-           * Grep for "not marked as write-protected" in gencgc.c
-           */
-            ret = KERN_SUCCESS;
-            break;
-        }
         /* Regular memory fault */
         handler = memory_fault_handler;
         break;