X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=src%2Fruntime%2Fbreakpoint.c;h=7892dc1f23a561abff788a897caf5d30ad0e97d4;hb=085501b44cc1cbdd9e260139d30b383372ddd1b8;hp=be487fad5f3888149c2df6b3db0bab576260470a;hpb=5c4c126f50e6fb8184bf9ae4411d17327c24cb91;p=sbcl.git

diff --git a/src/runtime/breakpoint.c b/src/runtime/breakpoint.c
index be487fa..7892dc1 100644
--- a/src/runtime/breakpoint.c
+++ b/src/runtime/breakpoint.c
@@ -71,7 +71,6 @@ void breakpoint_do_displaced_inst(os_context_t* context,
     arch_do_displaced_inst(context, orig_inst);
 }
 
-#if !(defined(LISP_FEATURE_X86) || defined(LISP_FEATURE_X86_64))
 static lispobj find_code(os_context_t *context)
 {
 #ifdef reg_CODE
@@ -88,22 +87,15 @@ static lispobj find_code(os_context_t *context)
     else
         return code - HeaderValue(header)*sizeof(lispobj);
 #else
-    return NIL;
-#endif
-}
-#else
-static lispobj find_code(os_context_t *context)
-{
     lispobj codeptr =
         (lispobj)component_ptr_from_pc((lispobj *)(*os_context_pc_addr(context)));
 
-    if (codeptr == 0) {
+    if (codeptr == 0)
         return NIL;
-    } else {
+    else
         return codeptr + OTHER_POINTER_LOWTAG;
-    }
-}
 #endif
+}
 
 static long compute_offset(os_context_t *context, lispobj code)
 {
@@ -132,7 +124,7 @@ static long compute_offset(os_context_t *context, lispobj code)
     }
 }
 
-void handle_breakpoint(int signal, siginfo_t* info, os_context_t *context)
+void handle_breakpoint(os_context_t *context)
 {
     lispobj code, context_sap;
 
@@ -141,9 +133,11 @@ void handle_breakpoint(int signal, siginfo_t* info, os_context_t *context)
     context_sap = alloc_sap(context);
     code = find_code(context);
 
+#ifndef LISP_FEATURE_WIN32
     /* Don't disallow recursive breakpoint traps. Otherwise, we can't
      * use debugger breakpoints anywhere in here. */
     thread_sigmask(SIG_SETMASK, os_context_sigmask_addr(context), 0);
+#endif
 
     funcall3(SymbolFunction(HANDLE_BREAKPOINT),
              compute_offset(context, code),
@@ -153,61 +147,63 @@ void handle_breakpoint(int signal, siginfo_t* info, os_context_t *context)
     undo_fake_foreign_function_call(context);
 }
 
-#if !(defined(LISP_FEATURE_X86) || defined(LISP_FEATURE_X86_64))
-void *handle_fun_end_breakpoint(int signal, siginfo_t *info,
-                                os_context_t *context)
+void *handle_fun_end_breakpoint(os_context_t *context)
 {
-    lispobj code, lra;
+    lispobj code, context_sap, lra;
     struct code *codeptr;
 
     fake_foreign_function_call(context);
 
+    context_sap = alloc_sap(context);
     code = find_code(context);
     codeptr = (struct code *)native_pointer(code);
 
+#ifndef LISP_FEATURE_WIN32
     /* Don't disallow recursive breakpoint traps. Otherwise, we can't
      * use debugger breakpoints anywhere in here. */
     thread_sigmask(SIG_SETMASK, os_context_sigmask_addr(context), 0);
+#endif
 
     funcall3(SymbolFunction(HANDLE_BREAKPOINT),
              compute_offset(context, code),
              code,
-             alloc_sap(context));
+             context_sap);
 
     lra = codeptr->constants[REAL_LRA_SLOT];
+
 #ifdef reg_CODE
-    if (codeptr->constants[KNOWN_RETURN_P_SLOT] == NIL) {
+    if (codeptr->constants[KNOWN_RETURN_P_SLOT] == NIL)
         *os_context_register_addr(context, reg_CODE) = lra;
-    }
 #endif
+
     undo_fake_foreign_function_call(context);
+
+#ifdef reg_LRA
     return (void *)(lra-OTHER_POINTER_LOWTAG+sizeof(lispobj));
-}
 #else
-void *handle_fun_end_breakpoint(int signal, siginfo_t *info,
-                                os_context_t *context)
-{
-    lispobj code, context_sap;
-    struct code *codeptr;
+    return compute_pc(lra, fixnum_value(codeptr->constants[REAL_LRA_SLOT+1]));
+#endif
+}
 
-    fake_foreign_function_call(context);
+void
+handle_single_step_trap (os_context_t *context, int kind, int register_offset)
+{
+    lispobj context_sap;
 
+    /* Allocate the SAP object while the interrupts are still
+     * disabled. */
     context_sap = alloc_sap(context);
-    code = find_code(context);
-    codeptr = (struct code *)native_pointer(code);
 
-    /* Don't disallow recursive breakpoint traps. Otherwise, we can't
-     * use debugger breakpoints anywhere in here. */
-    thread_sigmask(SIG_SETMASK, os_context_sigmask_addr(context), 0);
+    fake_foreign_function_call(context);
 
-    funcall3(SymbolFunction(HANDLE_BREAKPOINT),
-             compute_offset(context, code),
-             code,
-             context_sap);
+#ifndef LISP_FEATURE_WIN32
+    thread_sigmask(SIG_SETMASK, os_context_sigmask_addr(context), 0);
+#endif
 
-    undo_fake_foreign_function_call(context);
+    funcall3(SymbolFunction(HANDLE_SINGLE_STEP_TRAP),
+             context_sap,
+             make_fixnum(kind),
+             make_fixnum(register_offset));
 
-    return compute_pc(codeptr->constants[REAL_LRA_SLOT],
-                      fixnum_value(codeptr->constants[REAL_LRA_SLOT+1]));
+    undo_fake_foreign_function_call(context); /* blocks signals again */
 }
-#endif