X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=src%2Fruntime%2Fbreakpoint.c;h=3c99cc4146227c0974151e5fe11830bdf648375e;hb=f0f3805c145f2699701997761e2c6f55c475c192;hp=4c587ebc22b9ef2801e9547e2c2f97a6184f806b;hpb=e08e932c669e0ca9382ffe4d7a4b3b484bd3cccf;p=sbcl.git

diff --git a/src/runtime/breakpoint.c b/src/runtime/breakpoint.c
index 4c587eb..3c99cc4 100644
--- a/src/runtime/breakpoint.c
+++ b/src/runtime/breakpoint.c
@@ -102,21 +102,21 @@ static long compute_offset(os_context_t *context, lispobj code)
     if (code == NIL)
         return 0;
     else {
-        unsigned long code_start;
+        uword_t code_start;
         struct code *codeptr = (struct code *)native_pointer(code);
-#ifdef parisc
-        unsigned long pc = *os_context_pc_addr(context) & ~3;
+#ifdef LISP_FEATURE_HPPA
+        uword_t pc = *os_context_pc_addr(context) & ~3;
 #else
-        unsigned long pc = *os_context_pc_addr(context);
+        uword_t pc = *os_context_pc_addr(context);
 #endif
 
-        code_start = (unsigned long)codeptr
+        code_start = (uword_t)codeptr
             + HeaderValue(codeptr->header)*sizeof(lispobj);
         if (pc < code_start)
             return 0;
         else {
-            long offset = pc - code_start;
-            if (offset >= codeptr->code_size)
+            uword_t offset = pc - code_start;
+            if (offset >= (N_WORD_BYTES * fixnum_value(codeptr->code_size)))
                 return 0;
             else
                 return make_fixnum(offset);
@@ -124,20 +124,25 @@ 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;
 
     fake_foreign_function_call(context);
 
+#ifndef LISP_FEATURE_SB_SAFEPOINT
+    unblock_gc_signals(0, 0);
+#endif
     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),
+    funcall3(StaticSymbolFunction(HANDLE_BREAKPOINT),
              compute_offset(context, code),
              code,
              context_sap);
@@ -145,33 +150,44 @@ void handle_breakpoint(int signal, siginfo_t* info, os_context_t *context)
     undo_fake_foreign_function_call(context);
 }
 
-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, context_sap, lra;
     struct code *codeptr;
 
     fake_foreign_function_call(context);
 
+#ifndef LISP_FEATURE_SB_SAFEPOINT
+    unblock_gc_signals(0, 0);
+#endif
     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),
+    funcall3(StaticSymbolFunction(HANDLE_BREAKPOINT),
              compute_offset(context, code),
              code,
              context_sap);
 
     lra = codeptr->constants[REAL_LRA_SLOT];
 
+#ifdef LISP_FEATURE_PPC
+    /* PPC now passes LRA objects in reg_LRA during return.  Other
+     * platforms should as well, but haven't been fixed yet. */
+    if (codeptr->constants[KNOWN_RETURN_P_SLOT] == NIL)
+        *os_context_register_addr(context, reg_LRA) = lra;
+#else
 #ifdef reg_CODE
     if (codeptr->constants[KNOWN_RETURN_P_SLOT] == NIL)
         *os_context_register_addr(context, reg_CODE) = lra;
 #endif
+#endif
 
     undo_fake_foreign_function_call(context);
 
@@ -181,3 +197,19 @@ void *handle_fun_end_breakpoint(int signal, siginfo_t *info,
     return compute_pc(lra, fixnum_value(codeptr->constants[REAL_LRA_SLOT+1]));
 #endif
 }
+
+void
+handle_single_step_trap (os_context_t *context, int kind, int register_offset)
+{
+    fake_foreign_function_call(context);
+
+#ifndef LISP_FEATURE_WIN32
+    thread_sigmask(SIG_SETMASK, os_context_sigmask_addr(context), 0);
+#endif
+
+    funcall2(StaticSymbolFunction(HANDLE_SINGLE_STEP_TRAP),
+             make_fixnum(kind),
+             make_fixnum(register_offset));
+
+    undo_fake_foreign_function_call(context); /* blocks signals again */
+}