2011-01-11 Michael Snyder <msnyder@vmware.com>

[deliverable/binutils-gdb.git] / gdb / sparc-tdep.c

diff --git a/gdb/sparc-tdep.c b/gdb/sparc-tdep.c
index f129a55003dc86640825b901cd834df6e598ad56..b71a40f3a46f658538bb6645899e1558bcd65583 100644 (file)
--- a/gdb/sparc-tdep.c
+++ b/gdb/sparc-tdep.c
@@ -1,6 +1,6 @@
 /* Target-dependent code for SPARC.
 
-   Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
+   Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
    Free Software Foundation, Inc.
 
    This file is part of GDB.
@@ -63,7 +63,7 @@ struct regset;
    sparc64-tdep.c; don't add any here.  */
 
 /* The SPARC Floating-Point Quad-Precision format is similar to
-   big-endian IA-64 Quad-recision format.  */
+   big-endian IA-64 Quad-Precision format.  */
 #define floatformats_sparc_quad floatformats_ia64_quad
 
 /* The stack pointer is offset from the stack frame by a BIAS of 2047
@@ -145,7 +145,7 @@ sparc_is_unimp_insn (CORE_ADDR pc)
 
    More information on StackGuard can be found on in:
 
-   Mike Frantzen and Mike Shuey. "StackGhost: Hardware Facilitated
+   Mike Frantzen and Mike Shuey.  "StackGhost: Hardware Facilitated
    Stack Protection."  2001.  Published in USENIX Security Symposium
    '01.  */
 
@@ -221,7 +221,11 @@ sparc_floating_p (const struct type *type)
   return 0;
 }
 
-/* Check whether TYPE is "Structure or Union".  */
+/* Check whether TYPE is "Structure or Union".
+
+   In terms of Ada subprogram calls, arrays are treated the same as
+   struct and union types.  So this function also returns non-zero
+   for array types.  */
 
 static int
 sparc_structure_or_union_p (const struct type *type)
@@ -230,6 +234,7 @@ sparc_structure_or_union_p (const struct type *type)
     {
     case TYPE_CODE_STRUCT:
     case TYPE_CODE_UNION:
+    case TYPE_CODE_ARRAY:
       return 1;
     default:
       break;
@@ -342,7 +347,7 @@ sparc_fsr_type (struct gdbarch *gdbarch)
 }
 
 /* Return the GDB type object for the "standard" data type of data in
-   register REGNUM. */
+   register REGNUM.  */
 
 static struct type *
 sparc32_register_type (struct gdbarch *gdbarch, int regnum)
@@ -393,6 +398,13 @@ sparc32_pseudo_register_write (struct gdbarch *gdbarch,
 }
 \f
 
+static CORE_ADDR
+sparc32_frame_align (struct gdbarch *gdbarch, CORE_ADDR address)
+{
+  /* The ABI requires double-word alignment.  */
+  return address & ~0x7;
+}
+
 static CORE_ADDR
 sparc32_push_dummy_code (struct gdbarch *gdbarch, CORE_ADDR sp,
                         CORE_ADDR funcaddr,
@@ -1105,6 +1117,7 @@ sparc32_store_return_value (struct type *type, struct regcache *regcache,
 
   gdb_assert (!sparc_structure_or_union_p (type));
   gdb_assert (!(sparc_floating_p (type) && len == 16));
+  gdb_assert (len <= 8);
 
   if (sparc_floating_p (type))
     {
@@ -1401,6 +1414,7 @@ sparc32_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
   set_gdbarch_fp0_regnum (gdbarch, SPARC_F0_REGNUM); /* %f0 */
 
   /* Call dummy code.  */
+  set_gdbarch_frame_align (gdbarch, sparc32_frame_align);
   set_gdbarch_call_dummy_location (gdbarch, ON_STACK);
   set_gdbarch_push_dummy_code (gdbarch, sparc32_push_dummy_code);
   set_gdbarch_push_dummy_call (gdbarch, sparc32_push_dummy_call);