[PATCH v1] Synchronize siginfo type described in GDB with the kernel and glibc ones.

[Walfred Tedeschi <walfred dot tedeschi at intel dot com>]

New kernel and glibc patches have introduced fields in the
segmentation fault fields.

Kernel patch:
http://git.kernel.org/cgit/linux/kernel/git/tip/tip.git/commit/?id=ee1b58d36aa1b5a79eaba11f5c3633c88231da83

Glibc patch:
http://repo.or.cz/w/glibc.git/commit/d4358b51c26a634eb885955aea06cad26af6f696

2015-07-21  Walfred Tedeschi  <walfred.tedeschi@intel.com>

	* linux-tdep.c (linux_get_siginfo_type): Add the _addr_bnd
	structure to the siginfo.

---
 gdb/linux-tdep.c | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/gdb/linux-tdep.c b/gdb/linux-tdep.c
index 7c24eaa..de773ae 100644
--- a/gdb/linux-tdep.c
+++ b/gdb/linux-tdep.c
@@ -248,10 +248,10 @@ static struct type *
 linux_get_siginfo_type (struct gdbarch *gdbarch)
 {
   struct linux_gdbarch_data *linux_gdbarch_data;
-  struct type *int_type, *uint_type, *long_type, *void_ptr_type;
+  struct type *int_type, *uint_type, *long_type, *void_ptr_type, *short_type;
   struct type *uid_type, *pid_type;
   struct type *sigval_type, *clock_type;
-  struct type *siginfo_type, *sifields_type;
+  struct type *siginfo_type, *sifields_type, *sigfault_bnd_fields;
   struct type *type;
 
   linux_gdbarch_data = get_linux_gdbarch_data (gdbarch);
@@ -264,6 +264,8 @@ linux_get_siginfo_type (struct gdbarch *gdbarch)
 				 1, "unsigned int");
   long_type = arch_integer_type (gdbarch, gdbarch_long_bit (gdbarch),
 				 0, "long");
+  short_type = arch_integer_type (gdbarch, gdbarch_long_bit (gdbarch),
+				 0, "short");
   void_ptr_type = lookup_pointer_type (builtin_type (gdbarch)->builtin_void);
 
   /* sival_t */
@@ -339,6 +341,12 @@ linux_get_siginfo_type (struct gdbarch *gdbarch)
   /* _sigfault */
   type = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT);
   append_composite_type_field (type, "si_addr", void_ptr_type);
+  append_composite_type_field (type, "_addr_lsb", short_type);
+
+  sigfault_bnd_fields = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT);
+  append_composite_type_field (sigfault_bnd_fields, "_lower", void_ptr_type);
+  append_composite_type_field (sigfault_bnd_fields, "_upper", void_ptr_type);
+  append_composite_type_field (type, "_addr_bnd", sigfault_bnd_fields);
   append_composite_type_field (sifields_type, "_sigfault", type);
 
   /* _sigpoll */
-- 
2.1.4