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-rw-r--r--gdb/objc-lang.c30
1 files changed, 30 insertions, 0 deletions
diff --git a/gdb/objc-lang.c b/gdb/objc-lang.c
index 255781e..911831e 100644
--- a/gdb/objc-lang.c
+++ b/gdb/objc-lang.c
@@ -593,6 +593,35 @@ objc_create_fundamental_type (struct objfile *objfile, int typeid)
return (type);
}
+/* Determine if we are currently in the Objective-C dispatch function.
+ If so, get the address of the method function that the dispatcher
+ would call and use that as the function to step into instead. Also
+ skip over the trampoline for the function (if any). This is better
+ for the user since they are only interested in stepping into the
+ method function anyway. */
+static CORE_ADDR
+objc_skip_trampoline (CORE_ADDR stop_pc)
+{
+ CORE_ADDR real_stop_pc;
+ CORE_ADDR method_stop_pc;
+
+ real_stop_pc = SKIP_TRAMPOLINE_CODE (stop_pc);
+
+ if (real_stop_pc != 0)
+ find_objc_msgcall (real_stop_pc, &method_stop_pc);
+ else
+ find_objc_msgcall (stop_pc, &method_stop_pc);
+
+ if (method_stop_pc)
+ {
+ real_stop_pc = SKIP_TRAMPOLINE_CODE (method_stop_pc);
+ if (real_stop_pc == 0)
+ real_stop_pc = method_stop_pc;
+ }
+
+ return real_stop_pc;
+}
+
/* Table mapping opcodes into strings for printing operators
and precedences of the operators. */
@@ -670,6 +699,7 @@ const struct language_defn objc_language_defn = {
c_print_type, /* Print a type using appropriate syntax */
c_val_print, /* Print a value using appropriate syntax */
c_value_print, /* Print a top-level value */
+ objc_skip_trampoline, /* Language specific skip_trampoline */
{"", "", "", ""}, /* Binary format info */
{"0%lo", "0", "o", ""}, /* Octal format info */
{"%ld", "", "d", ""}, /* Decimal format info */