[PATCH] Replace struct siginfo with siginfo_t

[Chris Webb <chris at arachsys dot com>]

Glibc 2.16.0 removes the undocumented definition of 'struct siginfo' from
<bits/siginfo.h>. This struct is also available as the POSIX-defined
siginfo_t, so replace all uses of struct siginfo with siginfo_t.

Signed-off-by: Chris Webb <chris@arachsys.com>
---
 gdb/amd64-linux-nat.c         |    4 ++--
 gdb/arm-linux-nat.c           |    2 +-
 gdb/gdbserver/linux-arm-low.c |    2 +-
 gdb/gdbserver/linux-low.c     |   10 +++++-----
 gdb/gdbserver/linux-low.h     |    5 ++---
 gdb/gdbserver/linux-x86-low.c |    4 ++--
 gdb/ia64-linux-nat.c          |    2 +-
 gdb/linux-nat.c               |   16 ++++++++--------
 gdb/linux-nat.h               |    6 +++---
 gdb/ppc-linux-nat.c           |    2 +-
 gdb/procfs.c                  |    2 +-
 11 files changed, 27 insertions(+), 28 deletions(-)

diff --git a/gdb/amd64-linux-nat.c b/gdb/amd64-linux-nat.c
index 0df06fc..9f33da7 100644
--- a/gdb/amd64-linux-nat.c
+++ b/gdb/amd64-linux-nat.c
@@ -671,13 +671,13 @@ siginfo_from_compat_siginfo (siginfo_t *to, compat_siginfo_t *from)
    INF.  */
 
 static int
-amd64_linux_siginfo_fixup (struct siginfo *native, gdb_byte *inf, int direction)
+amd64_linux_siginfo_fixup (siginfo_t *native, gdb_byte *inf, int direction)
 {
   /* Is the inferior 32-bit?  If so, then do fixup the siginfo
      object.  */
   if (gdbarch_addr_bit (get_frame_arch (get_current_frame ())) == 32)
     {
-      gdb_assert (sizeof (struct siginfo) == sizeof (compat_siginfo_t));
+      gdb_assert (sizeof (siginfo_t) == sizeof (compat_siginfo_t));
 
       if (direction == 0)
 	compat_siginfo_from_siginfo ((struct compat_siginfo *) inf, native);
diff --git a/gdb/arm-linux-nat.c b/gdb/arm-linux-nat.c
index 411f7f4..bbd8439 100644
--- a/gdb/arm-linux-nat.c
+++ b/gdb/arm-linux-nat.c
@@ -1137,7 +1137,7 @@ arm_linux_remove_watchpoint (CORE_ADDR addr, int len, int rw,
 static int
 arm_linux_stopped_data_address (struct target_ops *target, CORE_ADDR *addr_p)
 {
-  struct siginfo *siginfo_p = linux_nat_get_siginfo (inferior_ptid);
+  siginfo_t *siginfo_p = linux_nat_get_siginfo (inferior_ptid);
   int slot = siginfo_p->si_errno;
 
   /* This must be a hardware breakpoint.  */
diff --git a/gdb/gdbserver/linux-arm-low.c b/gdb/gdbserver/linux-arm-low.c
index 3096546..abb6e52 100644
--- a/gdb/gdbserver/linux-arm-low.c
+++ b/gdb/gdbserver/linux-arm-low.c
@@ -631,7 +631,7 @@ static int
 arm_stopped_by_watchpoint (void)
 {
   struct lwp_info *lwp = get_thread_lwp (current_inferior);
-  struct siginfo siginfo;
+  siginfo_t siginfo;
 
   /* We must be able to set hardware watchpoints.  */
   if (arm_linux_get_hw_watchpoint_count () == 0)
diff --git a/gdb/gdbserver/linux-low.c b/gdb/gdbserver/linux-low.c
index 1a1b39a..1925fd5 100644
--- a/gdb/gdbserver/linux-low.c
+++ b/gdb/gdbserver/linux-low.c
@@ -4522,7 +4522,7 @@ linux_qxfer_osdata (const char *annex,
    layout of the inferiors' architecture.  */
 
 static void
-siginfo_fixup (struct siginfo *siginfo, void *inf_siginfo, int direction)
+siginfo_fixup (siginfo_t *siginfo, void *inf_siginfo, int direction)
 {
   int done = 0;
 
@@ -4534,9 +4534,9 @@ siginfo_fixup (struct siginfo *siginfo, void *inf_siginfo, int direction)
   if (!done)
     {
       if (direction == 1)
-	memcpy (siginfo, inf_siginfo, sizeof (struct siginfo));
+	memcpy (siginfo, inf_siginfo, sizeof (siginfo_t));
       else
-	memcpy (inf_siginfo, siginfo, sizeof (struct siginfo));
+	memcpy (inf_siginfo, siginfo, sizeof (siginfo_t));
     }
 }
 
@@ -4545,8 +4545,8 @@ linux_xfer_siginfo (const char *annex, unsigned char *readbuf,
 		    unsigned const char *writebuf, CORE_ADDR offset, int len)
 {
   int pid;
-  struct siginfo siginfo;
-  char inf_siginfo[sizeof (struct siginfo)];
+  siginfo_t siginfo;
+  char inf_siginfo[sizeof (siginfo_t)];
 
   if (current_inferior == NULL)
     return -1;
diff --git a/gdb/gdbserver/linux-low.h b/gdb/gdbserver/linux-low.h
index 2befc48..0cf58ae 100644
--- a/gdb/gdbserver/linux-low.h
+++ b/gdb/gdbserver/linux-low.h
@@ -21,6 +21,7 @@
 #include <thread_db.h>
 #endif
 
+#include <signal.h>
 #include "gdb_proc_service.h"
 
 #ifdef HAVE_LINUX_REGSETS
@@ -46,8 +47,6 @@ struct regset_info
 extern struct regset_info target_regsets[];
 #endif
 
-struct siginfo;
-
 struct process_info_private
 {
   /* Arch-specific additions.  */
@@ -103,7 +102,7 @@ struct linux_target_ops
      Returns true if any conversion was done; false otherwise.
      If DIRECTION is 1, then copy from INF to NATIVE.
      If DIRECTION is 0, copy from NATIVE to INF.  */
-  int (*siginfo_fixup) (struct siginfo *native, void *inf, int direction);
+  int (*siginfo_fixup) (siginfo_t *native, void *inf, int direction);
 
   /* Hook to call when a new process is created or attached to.
      If extra per-process architecture-specific data is needed,
diff --git a/gdb/gdbserver/linux-x86-low.c b/gdb/gdbserver/linux-x86-low.c
index 85ffa52..c7f59b3 100644
--- a/gdb/gdbserver/linux-x86-low.c
+++ b/gdb/gdbserver/linux-x86-low.c
@@ -906,13 +906,13 @@ siginfo_from_compat_siginfo (siginfo_t *to, compat_siginfo_t *from)
    INF.  */
 
 static int
-x86_siginfo_fixup (struct siginfo *native, void *inf, int direction)
+x86_siginfo_fixup (siginfo_t *native, void *inf, int direction)
 {
 #ifdef __x86_64__
   /* Is the inferior 32-bit?  If so, then fixup the siginfo object.  */
   if (register_size (0) == 4)
     {
-      if (sizeof (struct siginfo) != sizeof (compat_siginfo_t))
+      if (sizeof (siginfo_t) != sizeof (compat_siginfo_t))
 	fatal ("unexpected difference in siginfo");
 
       if (direction == 0)
diff --git a/gdb/ia64-linux-nat.c b/gdb/ia64-linux-nat.c
index 5aaaed9..69db957 100644
--- a/gdb/ia64-linux-nat.c
+++ b/gdb/ia64-linux-nat.c
@@ -637,7 +637,7 @@ static int
 ia64_linux_stopped_data_address (struct target_ops *ops, CORE_ADDR *addr_p)
 {
   CORE_ADDR psr;
-  struct siginfo *siginfo_p;
+  siginfo_t *siginfo_p;
   struct regcache *regcache = get_current_regcache ();
 
   siginfo_p = linux_nat_get_siginfo (inferior_ptid);
diff --git a/gdb/linux-nat.c b/gdb/linux-nat.c
index 373d1ca..4bbe550 100644
--- a/gdb/linux-nat.c
+++ b/gdb/linux-nat.c
@@ -179,7 +179,7 @@ static void (*linux_nat_new_thread) (ptid_t);
 /* The method to call, if any, when the siginfo object needs to be
    converted between the layout returned by ptrace, and the layout in
    the architecture of the inferior.  */
-static int (*linux_nat_siginfo_fixup) (struct siginfo *,
+static int (*linux_nat_siginfo_fixup) (siginfo_t *,
 				       gdb_byte *,
 				       int);
 
@@ -4138,7 +4138,7 @@ linux_nat_mourn_inferior (struct target_ops *ops)
    layout of the inferiors' architecture.  */
 
 static void
-siginfo_fixup (struct siginfo *siginfo, gdb_byte *inf_siginfo, int direction)
+siginfo_fixup (siginfo_t *siginfo, gdb_byte *inf_siginfo, int direction)
 {
   int done = 0;
 
@@ -4150,9 +4150,9 @@ siginfo_fixup (struct siginfo *siginfo, gdb_byte *inf_siginfo, int direction)
   if (!done)
     {
       if (direction == 1)
-	memcpy (siginfo, inf_siginfo, sizeof (struct siginfo));
+	memcpy (siginfo, inf_siginfo, sizeof (siginfo_t));
       else
-	memcpy (inf_siginfo, siginfo, sizeof (struct siginfo));
+	memcpy (inf_siginfo, siginfo, sizeof (siginfo_t));
     }
 }
 
@@ -4162,8 +4162,8 @@ linux_xfer_siginfo (struct target_ops *ops, enum target_object object,
 		    const gdb_byte *writebuf, ULONGEST offset, LONGEST len)
 {
   int pid;
-  struct siginfo siginfo;
-  gdb_byte inf_siginfo[sizeof (struct siginfo)];
+  siginfo_t siginfo;
+  gdb_byte inf_siginfo[sizeof (siginfo_t)];
 
   gdb_assert (object == TARGET_OBJECT_SIGNAL_INFO);
   gdb_assert (readbuf || writebuf);
@@ -5852,7 +5852,7 @@ linux_nat_set_new_thread (struct target_ops *t, void (*new_thread) (ptid_t))
    inferior.  */
 void
 linux_nat_set_siginfo_fixup (struct target_ops *t,
-			     int (*siginfo_fixup) (struct siginfo *,
+			     int (*siginfo_fixup) (siginfo_t *,
 						   gdb_byte *,
 						   int))
 {
@@ -5861,7 +5861,7 @@ linux_nat_set_siginfo_fixup (struct target_ops *t,
 }
 
 /* Return the saved siginfo associated with PTID.  */
-struct siginfo *
+siginfo_t *
 linux_nat_get_siginfo (ptid_t ptid)
 {
   struct lwp_info *lp = find_lwp_pid (ptid);
diff --git a/gdb/linux-nat.h b/gdb/linux-nat.h
index 2d4503e..0e64e25 100644
--- a/gdb/linux-nat.h
+++ b/gdb/linux-nat.h
@@ -76,7 +76,7 @@ struct lwp_info
 
   /* Non-zero si_signo if this LWP stopped with a trap.  si_addr may
      be the address of a hardware watchpoint.  */
-  struct siginfo siginfo;
+  siginfo_t siginfo;
 
   /* STOPPED_BY_WATCHPOINT is non-zero if this LWP stopped with a data
      watchpoint trap.  */
@@ -171,7 +171,7 @@ void linux_nat_set_new_thread (struct target_ops *, void (*) (ptid_t));
    that ptrace returns, and the layout in the architecture of the
    inferior.  */
 void linux_nat_set_siginfo_fixup (struct target_ops *,
-				  int (*) (struct siginfo *,
+				  int (*) (siginfo_t *,
 					   gdb_byte *,
 					   int));
 
@@ -180,7 +180,7 @@ void linux_nat_set_siginfo_fixup (struct target_ops *,
 void linux_nat_switch_fork (ptid_t new_ptid);
 
 /* Return the saved siginfo associated with PTID.  */
-struct siginfo *linux_nat_get_siginfo (ptid_t ptid);
+siginfo_t *linux_nat_get_siginfo (ptid_t ptid);
 
 /* Compute and return the processor core of a given thread.  */
 int linux_nat_core_of_thread_1 (ptid_t ptid);
diff --git a/gdb/ppc-linux-nat.c b/gdb/ppc-linux-nat.c
index e42fa62..96f755c 100644
--- a/gdb/ppc-linux-nat.c
+++ b/gdb/ppc-linux-nat.c
@@ -2213,7 +2213,7 @@ ppc_linux_thread_exit (struct thread_info *tp, int silent)
 static int
 ppc_linux_stopped_data_address (struct target_ops *target, CORE_ADDR *addr_p)
 {
-  struct siginfo *siginfo_p;
+  siginfo_t *siginfo_p;
 
   siginfo_p = linux_nat_get_siginfo (inferior_ptid);
 
diff --git a/gdb/procfs.c b/gdb/procfs.c
index 14d923d..fff432b 100644
--- a/gdb/procfs.c
+++ b/gdb/procfs.c
@@ -262,7 +262,7 @@ typedef struct sigaction gdb_sigaction_t;
 #ifdef HAVE_PR_SIGINFO64_T
 typedef pr_siginfo64_t gdb_siginfo_t;
 #else
-typedef struct siginfo gdb_siginfo_t;
+typedef siginfo_t gdb_siginfo_t;
 #endif
 
 /* On mips-irix, praddset and prdelset are defined in such a way that
-- 
1.7.10