* arm/aout.h (ASM_OUTPUT_MI_THUNK): Define.

From-SVN: r11862

diff --git a/gcc/config/arm/aout.h b/gcc/config/arm/aout.h
index 9e7d5985eec1c9bd7562590061c71b4f7a9c78ce..74814a1879669cdb23f48f2107689defb4564001 100644 (file)
--- a/gcc/config/arm/aout.h
+++ b/gcc/config/arm/aout.h
@@ -261,4 +261,25 @@ do { char dstr[30];                                                        \
 #define ASM_COMMENT_START "@"
 #endif
 
+/* Output code to add DELTA to the first argument, and then jump to FUNCTION.
+   Used for C++ multiple inheritance.  */
+#define ASM_OUTPUT_MI_THUNK(FILE, THUNK_FNDECL, DELTA, FUNCTION) \
+do {                                                           \
+  int mi_delta = (DELTA);                                      \
+  char *mi_op = mi_delta < 0 ? "sub" : "add";                  \
+  unsigned int mi_mask = 0xff000000;                           \
+  if (mi_delta < 0) mi_delta = -mi_delta;                      \
+  while (mi_mask)                                              \
+    {                                                          \
+      if (mi_delta & mi_mask)                                  \
+       fprintf (FILE, "\t%s %s, %s, #%d\n",                    \
+                mi_op, reg_names[0], reg_names[0], mi_delta & mi_mask); \
+      arm_increase_location (4);                               \
+      mi_mask >>= 8;                                           \
+    }                                                          \
+  fprintf (FILE, "\tldr pc, 1f\n1:");                          \
+  arm_increase_location (4);                                   \
+  ASM_OUTPUT_INT (FILE, XEXP (DECL_RTL (FUNCTION), 0));                \
+} while (0)
+
 #include "arm/arm.h"