2003-11-14 Jeff Johnston <jjohnstn@redhat.com>

        * config/ia64/nm-linux.h (NATIVE_XFER_UNWIND_TABLE): New macro to
        set up the ia64 linux native target method for getting the kernel
        unwind table.
        * ia64-linux-nat.c (ia64_linux_xfer_unwind_table): New function.
        * inftarg.c (child_xfer_partial): Enable section of code to
        handle TARGET_OBJECT_UNWIND_TABLE.
        * target.h (target_object): Add new TARGET_OBJECT_UNWIND_TABLE macro.

5 files changed, 36 insertions, 4 deletions

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 5f6bdab69d5..ff12fa6f615 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,13 @@
+2003-11-14  Jeff Johnston  <jjohnstn@redhat.com>
+ 
+	* config/ia64/nm-linux.h (NATIVE_XFER_UNWIND_TABLE): New macro to
+	set up the ia64 linux native target method for getting the kernel
+	unwind table.
+	* ia64-linux-nat.c (ia64_linux_xfer_unwind_table): New function.
+	* inftarg.c (child_xfer_partial): Enable section of code to
+	handle TARGET_OBJECT_UNWIND_TABLE.
+ 	* target.h (target_object): Add new TARGET_OBJECT_UNWIND_TABLE macro.
+
 2003-11-14  Ian Lance Taylor  <ian@wasabisystems.com>
 
 	* config/arm/nbsd.mt (TM_FILE): Define.
diff --git a/gdb/config/ia64/nm-linux.h b/gdb/config/ia64/nm-linux.h
index 0418495c111..01c980748e2 100644
--- a/gdb/config/ia64/nm-linux.h
+++ b/gdb/config/ia64/nm-linux.h
@@ -69,4 +69,15 @@ extern int ia64_linux_insert_watchpoint (ptid_t ptid, CORE_ADDR addr,
 extern int ia64_linux_remove_watchpoint (ptid_t ptid, CORE_ADDR addr,
                                          int len);
 
+#include "target.h"
+
+#define NATIVE_XFER_UNWIND_TABLE ia64_linux_xfer_unwind_table
+extern LONGEST ia64_linux_xfer_unwind_table (struct target_ops *ops, 
+					     enum target_object object,
+					     const char *annex, 
+					     void *readbuf,
+					     const void *writebuf,
+					     ULONGEST offset, 
+					     LONGEST len);
+
 #endif /* #ifndef NM_LINUX_H */
diff --git a/gdb/ia64-linux-nat.c b/gdb/ia64-linux-nat.c
index a2ca8fa9bce..00f66fb2e83 100644
--- a/gdb/ia64-linux-nat.c
+++ b/gdb/ia64-linux-nat.c
@@ -34,6 +34,7 @@
 #ifdef HAVE_SYS_REG_H
 #include <sys/reg.h>
 #endif
+#include <sys/syscall.h>
 #include <sys/user.h>
 
 #include <asm/ptrace_offsets.h>
@@ -645,3 +646,13 @@ ia64_linux_stopped_by_watchpoint (ptid_t ptid)
 
   return (CORE_ADDR) siginfo.si_addr;
 }
+
+LONGEST 
+ia64_linux_xfer_unwind_table (struct target_ops *ops,
+			      enum target_object object,
+			      const char *annex,
+			      void *readbuf, const void *writebuf,
+			      ULONGEST offset, LONGEST len)
+{
+  return syscall (__NR_getunwind, readbuf, len);
+}
diff --git a/gdb/inftarg.c b/gdb/inftarg.c
index 6829400b592..a20c39fd07a 100644
--- a/gdb/inftarg.c
+++ b/gdb/inftarg.c
@@ -571,14 +571,12 @@ child_xfer_partial (struct target_ops *ops, enum target_object object,
 				  NULL, ops);
       return -1;
 
-#if 0
     case TARGET_OBJECT_UNWIND_TABLE:
 #ifndef NATIVE_XFER_UNWIND_TABLE
 #define NATIVE_XFER_UNWIND_TABLE(OPS,OBJECT,ANNEX,WRITEBUF,READBUF,OFFSET,LEN) (-1)
 #endif
       return NATIVE_XFER_UNWIND_TABLE (ops, object, annex, readbuf, writebuf,
 				       offset, len);
-#endif
 
 #if 0
     case TARGET_OBJECT_AUXV:
diff --git a/gdb/target.h b/gdb/target.h
index 42b95964964..21956df9dd9 100644
--- a/gdb/target.h
+++ b/gdb/target.h
@@ -223,8 +223,10 @@ enum target_object
   /* AVR target specific transfer.  See "avr-tdep.c" and "remote.c".  */
   TARGET_OBJECT_AVR,
   /* Transfer up-to LEN bytes of memory starting at OFFSET.  */
-  TARGET_OBJECT_MEMORY
-  /* Possible future ojbects: TARGET_OJBECT_FILE, TARGET_OBJECT_PROC,
+  TARGET_OBJECT_MEMORY,
+  /* Kernel Unwind Table.  See "ia64-tdep.c".  */
+  TARGET_OBJECT_UNWIND_TABLE,
+  /* Possible future objects: TARGET_OBJECT_FILE, TARGET_OBJECT_PROC,
      TARGET_OBJECT_AUXV, ...  */
 };