gdb: fixing gdb 7.4.1 build with eglibc-2_16

gdb 7.4.1 fails with the following error
  gdb-7.4.1/gdb/linux-nat.h:79:18: error: field 'siginfo' has incomplete type
because gdb use 'struct siginfo' instead of 'struct siginfo_t'.
Crosstool-NG allready use the patches to prevent this error so use this
patches for buildroot too.

see also http://permalink.gmane.org/gmane.comp.gcc.cross-compiling/15305

Fixes http://autobuild.buildroot.net/results/b894a5cecd9c5e0a1a751ebbff90a14aea1803da/build-end.log

Signed-off-by: Carsten Schoenert <c.schoenert@gmail.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

2 files changed, 356 insertions, 0 deletions

diff --git a/toolchain/gdb/7.4.1/00_all_ptrace_setsiginfo.patch b/toolchain/gdb/7.4.1/00_all_ptrace_setsiginfo.patch
new file mode 100644
index 000000000..81a92db9a
--- /dev/null
+++ b/toolchain/gdb/7.4.1/00_all_ptrace_setsiginfo.patch
@@ -0,0 +1,314 @@
+fix from upstream for building with newer kernel headers
+
+From a7f9ca9cb797d653dc7919538e1dfa0c26010331 Mon Sep 17 00:00:00 2001
+From: tschwinge <tschwinge>
+Date: Wed, 21 Mar 2012 13:43:50 +0000
+Subject: [PATCH] struct siginfo vs. siginfo_t
+
+gdb/
+	* amd64-linux-nat.c (amd64_linux_siginfo_fixup): Use siginfo_t instead
+	of struct siginfo.
+	* arm-linux-nat.c (arm_linux_stopped_data_address): Likewise.
+	* ia64-linux-nat.c (ia64_linux_stopped_data_address): Likewise.
+	* linux-nat.c (linux_nat_siginfo_fixup, siginfo_fixup)
+	(linux_xfer_siginfo, linux_nat_set_siginfo_fixup)
+	(linux_nat_get_siginfo): Likewise.
+	* linux-nat.h (struct lwp_info, linux_nat_set_siginfo_fixup)
+	(linux_nat_get_siginfo): Likewise.
+	* linux-tdep.c (linux_get_siginfo_type): Likewise.
+	* ppc-linux-nat.c (ppc_linux_stopped_data_address): Likewise.
+	* procfs.c (gdb_siginfo_t): Likewise.
+
+gdbserver/
+	* linux-arm-low.c (arm_stopped_by_watchpoint): Use siginfo_t instead of
+	struct siginfo.
+	* linux-low.c (siginfo_fixup, linux_xfer_siginfo): Likewise.
+	* linux-x86-low.c (x86_siginfo_fixup): Likewise.
+	* linux-low.h: Include <signal.h>.
+	(struct siginfo): Remove forward declaration.
+	(struct linux_target_ops) <siginfo_fixup>: Use siginfo_t instead of
+	struct siginfo.
+---
+ gdb/ChangeLog                 |   15 +++++++++++++++
+ gdb/amd64-linux-nat.c         |    4 ++--
+ gdb/arm-linux-nat.c           |    2 +-
+ gdb/gdbserver/ChangeLog       |   11 +++++++++++
+ 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 +-
+ 13 files changed, 53 insertions(+), 28 deletions(-)
+
+diff --git a/gdb/amd64-linux-nat.c b/gdb/amd64-linux-nat.c
+index f954483..5ebba3a 100644
+--- a/gdb/amd64-linux-nat.c
++++ b/gdb/amd64-linux-nat.c
+@@ -731,13 +731,13 @@ 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 c5ce21c..f9f6ba5 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 ff2437d..01208ef 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 d2d4c1d..4734f15 100644
+--- a/gdb/gdbserver/linux-low.c
++++ b/gdb/gdbserver/linux-low.c
+@@ -4779,7 +4779,7 @@ 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;
+ 
+@@ -4791,9 +4791,9 @@ 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));
+     }
+ }
+ 
+@@ -4802,8 +4802,8 @@ 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 677d261..3aeae70 100644
+--- a/gdb/gdbserver/linux-low.h
++++ b/gdb/gdbserver/linux-low.h
+@@ -20,6 +20,7 @@
+ #ifdef HAVE_THREAD_DB_H
+ #include <thread_db.h>
+ #endif
++#include <signal.h>
+ 
+ #include "gdb_proc_service.h"
+ 
+@@ -46,8 +47,6 @@ struct regset_info
+ extern struct regset_info target_regsets[];
+ #endif
+ 
+-struct siginfo;
+-
+ struct process_info_private
+ {
+   /* Arch-specific additions.  */
+@@ -109,7 +108,7 @@ 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 ed1f8a8..b466b5d 100644
+--- a/gdb/gdbserver/linux-x86-low.c
++++ b/gdb/gdbserver/linux-x86-low.c
+@@ -918,13 +918,13 @@ 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 8773195..19b827f 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 f80c0c1..d81d55e 100644
+--- a/gdb/linux-nat.c
++++ b/gdb/linux-nat.c
+@@ -188,7 +188,7 @@ static void (*linux_nat_prepare_to_resume) (struct lwp_info *);
+ /* 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);
+ 
+@@ -4232,7 +4232,7 @@ 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;
+ 
+@@ -4244,9 +4244,9 @@ 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));
+     }
+ }
+ 
+@@ -4256,8 +4256,8 @@ 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);
+@@ -5266,7 +5266,7 @@ linux_nat_set_new_thread (struct target_ops *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))
+ {
+@@ -5285,7 +5285,7 @@ linux_nat_set_prepare_to_resume (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 c9878d9..d87f0cf 100644
+--- a/gdb/linux-nat.h
++++ b/gdb/linux-nat.h
+@@ -78,7 +78,7 @@ 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.  */
+@@ -184,7 +184,7 @@ void linux_nat_set_new_thread (struct target_ops *, void (*) (struct lwp_info *)
+    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));
+ 
+@@ -198,7 +198,7 @@ void linux_nat_set_prepare_to_resume (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 1bd157b..9bd11fd 100644
+--- a/gdb/ppc-linux-nat.c
++++ b/gdb/ppc-linux-nat.c
+@@ -2218,7 +2218,7 @@ 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 903621d..cb4bc7c 100644
+--- a/gdb/procfs.c
++++ b/gdb/procfs.c
+@@ -266,7 +266,7 @@ 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
+-- 
+1.7.9.7
+
diff --git a/toolchain/gdb/7.4.1/05_all_readline-headers.patch b/toolchain/gdb/7.4.1/05_all_readline-headers.patch
new file mode 100644
index 000000000..e65adf6e6
--- /dev/null
+++ b/toolchain/gdb/7.4.1/05_all_readline-headers.patch
@@ -0,0 +1,42 @@
+--- a/readline/complete.c
++++ b/readline/complete.c
+@@ -25,6 +25,11 @@
+ #  include <config.h>
+ #endif
+ 
++#ifdef HAVE_WCHAR_H /* wcwidth() */
++# define _GNU_SOURCE
++# include <wchar.h>
++#endif
++
+ #include <sys/types.h>
+ #include <fcntl.h>
+ #if defined (HAVE_SYS_FILE_H)
+--- a/readline/display.c
++++ b/readline/display.c
+@@ -25,6 +25,11 @@
+ #  include <config.h>
+ #endif
+ 
++#ifdef HAVE_WCHAR_H /* wcwidth() */
++# define _GNU_SOURCE
++# include <wchar.h>
++#endif
++
+ #include <sys/types.h>
+ 
+ #if defined (HAVE_UNISTD_H)
+--- a/readline/mbutil.c
++++ b/readline/mbutil.c
+@@ -25,6 +25,11 @@
+ #  include <config.h>
+ #endif
+ 
++#ifdef HAVE_WCHAR_H /* wcwidth() */
++# define _GNU_SOURCE
++# include <wchar.h>
++#endif
++
+ #include <sys/types.h>
+ #include <fcntl.h>
+ #include "posixjmp.h"