2003-10-20 Andrew Cagney <cagney@redhat.com>

[deliverable/binutils-gdb.git] / gdb / defs.h

diff --git a/gdb/defs.h b/gdb/defs.h
index 696ee5b4452bc4e3fcc0a3ab623d0ba791d6a0d4..c7713b90c3491eff0f19ca8dd08e4380bb237965 100644 (file)
--- a/gdb/defs.h
+++ b/gdb/defs.h
@@ -230,6 +230,21 @@ enum auto_boolean
   AUTO_BOOLEAN_AUTO
 };
 
+/* Potential ways that a function can return a value of a given type.  */
+enum return_value_convention
+{
+  /* Where the return value has been squeezed into one or more
+     registers.  */
+  RETURN_VALUE_REGISTER_CONVENTION,
+  /* Commonly known as the "struct return convention".  The caller
+     passes an additional hidden first parameter to the caller.  That
+     parameter contains the address at which the value being returned
+     should be stored.  While typically, and historically, used for
+     large structs, this is convention is applied to values of many
+     different types.  */
+  RETURN_VALUE_STRUCT_CONVENTION
+};
+
 /* the cleanup list records things that have to be undone
    if an error happens (descriptors to be closed, memory to be freed, etc.)
    Each link in the chain records a function to call and an