/* Target-dependent code for SPARC.
- Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009
+ Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
Free Software Foundation, Inc.
This file is part of GDB.
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
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. */
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)
{
case TYPE_CODE_STRUCT:
case TYPE_CODE_UNION:
+ case TYPE_CODE_ARRAY:
return 1;
default:
break;
}
/* 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)
return builtin_type (gdbarch)->builtin_int32;
}
-static void
+static enum register_status
sparc32_pseudo_register_read (struct gdbarch *gdbarch,
struct regcache *regcache,
int regnum, gdb_byte *buf)
{
+ enum register_status status;
+
gdb_assert (regnum >= SPARC32_D0_REGNUM && regnum <= SPARC32_D30_REGNUM);
regnum = SPARC_F0_REGNUM + 2 * (regnum - SPARC32_D0_REGNUM);
- regcache_raw_read (regcache, regnum, buf);
- regcache_raw_read (regcache, regnum + 1, buf + 4);
+ status = regcache_raw_read (regcache, regnum, buf);
+ if (status == REG_VALID)
+ status = regcache_raw_read (regcache, regnum + 1, buf + 4);
+ return status;
}
static void
}
\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,
static const struct frame_unwind sparc32_frame_unwind =
{
NORMAL_FRAME,
+ default_frame_unwind_stop_reason,
sparc32_frame_this_id,
sparc32_frame_prev_register,
NULL,
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))
{
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);