* gdb.texinfo (SVR4 Process Information, The isatty call)

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

diff --git a/gdb/sparc-tdep.c b/gdb/sparc-tdep.c
index 0bcdd48402d282cd185ddfcbcf84b7fb9633a9cb..dcae0455885e9836ed09a6f7a74eaef886ec2355 100644 (file)
--- a/gdb/sparc-tdep.c
+++ b/gdb/sparc-tdep.c
@@ -673,6 +673,9 @@ sparc_frame_cache (struct frame_info *next_frame, void **this_cache)
        frame_unwind_register_unsigned (next_frame, SPARC_FP_REGNUM);
     }
 
+  if (cache->base & 1)
+    cache->base += BIAS;
+
   return cache;
 }
 
@@ -859,6 +862,8 @@ sparc_unwind_dummy_id (struct gdbarch *gdbarch, struct frame_info *next_frame)
   CORE_ADDR sp;
 
   sp = frame_unwind_register_unsigned (next_frame, SPARC_SP_REGNUM);
+  if (sp & 1)
+    sp += BIAS;
   return frame_id_build (sp, frame_pc_unwind (next_frame));
 }
 \f
@@ -1267,6 +1272,16 @@ sparc_supply_rwindow (struct regcache *regcache, CORE_ADDR sp, int regnum)
          if (regnum == i || regnum == -1)
            {
              target_read_memory (sp + ((i - SPARC_L0_REGNUM) * 8), buf, 8);
+
+             /* Handle StackGhost.  */
+             if (i == SPARC_I7_REGNUM)
+               {
+                 ULONGEST wcookie = sparc_fetch_wcookie ();
+                 ULONGEST i7 = extract_unsigned_integer (buf + offset, 8);
+
+                 store_unsigned_integer (buf + offset, 8, i7 ^ wcookie);
+               }
+
              regcache_raw_supply (regcache, i, buf);
            }
        }
@@ -1325,6 +1340,16 @@ sparc_collect_rwindow (const struct regcache *regcache,
          if (regnum == -1 || regnum == SPARC_SP_REGNUM || regnum == i)
            {
              regcache_raw_collect (regcache, i, buf);
+
+             /* Handle StackGhost.  */
+             if (i == SPARC_I7_REGNUM)
+               {
+                 ULONGEST wcookie = sparc_fetch_wcookie ();
+                 ULONGEST i7 = extract_unsigned_integer (buf + offset, 8);
+
+                 store_unsigned_integer (buf, 8, i7 ^ wcookie);
+               }
+
              target_write_memory (sp + ((i - SPARC_L0_REGNUM) * 8), buf, 8);
            }
        }