* dwarf2read.c (lookup_dwo_comp_unit): Enhance comment.

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

diff --git a/gdb/hppa-tdep.c b/gdb/hppa-tdep.c
index 334870fe50733b465d81aeb5628f91a6f801523e..581ffc7aad87c7989aa7e03def6c33120f409989 100644 (file)
--- a/gdb/hppa-tdep.c
+++ b/gdb/hppa-tdep.c
@@ -1,8 +1,7 @@
 /* Target-dependent code for the HP PA-RISC architecture.
 
-   Copyright (C) 1986, 1987, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996,
-   1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008, 2009, 2010,
-   2011 Free Software Foundation, Inc.
+   Copyright (C) 1986-1987, 1989-1996, 1998-2005, 2007-2012 Free
+   Software Foundation, Inc.
 
    Contributed by the Center for Software Science at the
    University of Utah (pa-gdb-bugs@cs.utah.edu).
@@ -544,7 +543,6 @@ hppa_in_function_epilogue_p (struct gdbarch *gdbarch, CORE_ADDR pc)
   unsigned long status;
   unsigned int inst;
   char buf[4];
-  int off;
 
   status = target_read_memory (pc, buf, 4);
   if (status != 0)
@@ -1115,7 +1113,7 @@ hppa64_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
 /* Handle 32/64-bit struct return conventions.  */
 
 static enum return_value_convention
-hppa32_return_value (struct gdbarch *gdbarch, struct type *func_type,
+hppa32_return_value (struct gdbarch *gdbarch, struct value *function,
                     struct type *type, struct regcache *regcache,
                     gdb_byte *readbuf, const gdb_byte *writebuf)
 {
@@ -1155,7 +1153,7 @@ hppa32_return_value (struct gdbarch *gdbarch, struct type *func_type,
 }
 
 static enum return_value_convention
-hppa64_return_value (struct gdbarch *gdbarch, struct type *func_type,
+hppa64_return_value (struct gdbarch *gdbarch, struct value *function,
                     struct type *type, struct regcache *regcache,
                     gdb_byte *readbuf, const gdb_byte *writebuf)
 {
@@ -1699,7 +1697,6 @@ after_prologue (CORE_ADDR pc)
 {
   struct symtab_and_line sal;
   CORE_ADDR func_addr, func_end;
-  struct symbol *f;
 
   /* If we can not find the symbol in the partial symbol table, then
      there is no hope we can determine the function's start address
@@ -1739,10 +1736,7 @@ after_prologue (CORE_ADDR pc)
 static CORE_ADDR
 hppa_skip_prologue (struct gdbarch *gdbarch, CORE_ADDR pc)
 {
-  unsigned long inst;
-  int offset;
   CORE_ADDR post_prologue_pc;
-  char buf[4];
 
   /* See if we can determine the end of the prologue via the symbol table.
      If so, then return either PC, or the PC after the prologue, whichever
@@ -1794,7 +1788,6 @@ hppa_frame_cache (struct frame_info *this_frame, void **this_cache)
   struct hppa_frame_cache *cache;
   long saved_gr_mask;
   long saved_fr_mask;
-  CORE_ADDR this_sp;
   long frame_size;
   struct unwind_table_entry *u;
   CORE_ADDR prologue_end;
@@ -2225,6 +2218,7 @@ hppa_frame_unwind_sniffer (const struct frame_unwind *self,
 static const struct frame_unwind hppa_frame_unwind =
 {
   NORMAL_FRAME,
+  default_frame_unwind_stop_reason,
   hppa_frame_this_id,
   hppa_frame_prev_register,
   NULL,
@@ -2335,6 +2329,7 @@ hppa_fallback_frame_prev_register (struct frame_info *this_frame,
 static const struct frame_unwind hppa_fallback_frame_unwind =
 {
   NORMAL_FRAME,
+  default_frame_unwind_stop_reason,
   hppa_fallback_frame_this_id,
   hppa_fallback_frame_prev_register,
   NULL,
@@ -2431,6 +2426,7 @@ hppa_stub_unwind_sniffer (const struct frame_unwind *self,
 
 static const struct frame_unwind hppa_stub_frame_unwind = {
   NORMAL_FRAME,
+  default_frame_unwind_stop_reason,
   hppa_stub_frame_this_id,
   hppa_stub_frame_prev_register,
   NULL,
@@ -2665,17 +2661,22 @@ hppa_fetch_pointer_argument (struct frame_info *frame, int argi,
   return get_frame_register_unsigned (frame, HPPA_R0_REGNUM + 26 - argi);
 }
 
-static void
+static enum register_status
 hppa_pseudo_register_read (struct gdbarch *gdbarch, struct regcache *regcache,
                           int regnum, gdb_byte *buf)
 {
-    enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
-    ULONGEST tmp;
+  enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
+  ULONGEST tmp;
+  enum register_status status;
 
-    regcache_raw_read_unsigned (regcache, regnum, &tmp);
-    if (regnum == HPPA_PCOQ_HEAD_REGNUM || regnum == HPPA_PCOQ_TAIL_REGNUM)
-      tmp &= ~0x3;
-    store_unsigned_integer (buf, sizeof tmp, byte_order, tmp);
+  status = regcache_raw_read_unsigned (regcache, regnum, &tmp);
+  if (status == REG_VALID)
+    {
+      if (regnum == HPPA_PCOQ_HEAD_REGNUM || regnum == HPPA_PCOQ_TAIL_REGNUM)
+       tmp &= ~0x3;
+      store_unsigned_integer (buf, sizeof tmp, byte_order, tmp);
+    }
+  return status;
 }
 
 static CORE_ADDR