1.0.26.15: interrupt.c refactoring

[sbcl.git] / src / runtime / breakpoint.c

diff --git a/src/runtime/breakpoint.c b/src/runtime/breakpoint.c
index edee7b3..45639c4 100644 (file)
--- a/src/runtime/breakpoint.c
+++ b/src/runtime/breakpoint.c
@@ -104,7 +104,7 @@ static long compute_offset(os_context_t *context, lispobj code)
     else {
         unsigned long code_start;
         struct code *codeptr = (struct code *)native_pointer(code);
-#ifdef parisc
+#ifdef LISP_FEATURE_HPPA
         unsigned long pc = *os_context_pc_addr(context) & ~3;
 #else
         unsigned long pc = *os_context_pc_addr(context);
@@ -115,7 +115,7 @@ static long compute_offset(os_context_t *context, lispobj code)
         if (pc < code_start)
             return 0;
         else {
-            long offset = pc - code_start;
+            unsigned long offset = pc - code_start;
             if (offset >= codeptr->code_size)
                 return 0;
             else
@@ -124,12 +124,13 @@ 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);
 
+    unblock_gc_signals(0, 0);
     context_sap = alloc_sap(context);
     code = find_code(context);
 
@@ -139,7 +140,7 @@ void handle_breakpoint(int signal, siginfo_t* info, os_context_t *context)
     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);
@@ -147,14 +148,14 @@ 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);
 
+    unblock_gc_signals(0, 0);
     context_sap = alloc_sap(context);
     code = find_code(context);
     codeptr = (struct code *)native_pointer(code);
@@ -165,7 +166,7 @@ void *handle_fun_end_breakpoint(int signal, siginfo_t *info,
     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);
@@ -185,3 +186,19 @@ 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 */
+}