Updated copyright notices for most files.

[deliverable/binutils-gdb.git] / gdb / procfs.c

diff --git a/gdb/procfs.c b/gdb/procfs.c
index b3a3fc27174db1e8f9cef98c0293af87b8a70bad..3b6e5997ac67e47a01fd71e9d20ad33b958e3ced 100644 (file)
--- a/gdb/procfs.c
+++ b/gdb/procfs.c
@@ -1,27 +1,25 @@
 /* Machine independent support for SVR4 /proc (process file system) for GDB.
 
-   Copyright (C) 1999, 2000, 2001, 2002, 2003, 2006, 2007
+   Copyright (C) 1999, 2000, 2001, 2002, 2003, 2006, 2007, 2008
    Free Software Foundation, Inc.
 
    Written by Michael Snyder at Cygnus Solutions.
    Based on work by Fred Fish, Stu Grossman, Geoff Noer, and others.
 
-This file is part of GDB.
+   This file is part of GDB.
 
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
-(at your option) any later version.
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
 
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
 
-You should have received a copy of the GNU General Public License
-along with this program; if not, write to the Free Software Foundation,
-Inc., 51 Franklin Street, Fifth Floor,
-Boston, MA 02110-1301, USA.  */
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #include "defs.h"
 #include "inferior.h"
@@ -2487,6 +2485,8 @@ proc_set_current_signal (procinfo *pi, int signo)
     char sinfo[sizeof (gdb_siginfo_t)];
   } arg;
   gdb_siginfo_t *mysinfo;
+  ptid_t wait_ptid;
+  struct target_waitstatus wait_status;
 
   /*
    * We should never have to apply this operation to any procinfo
@@ -2510,10 +2510,31 @@ proc_set_current_signal (procinfo *pi, int signo)
 
   /* The pointer is just a type alias.  */
   mysinfo = (gdb_siginfo_t *) &arg.sinfo;
-  mysinfo->si_signo = signo;
-  mysinfo->si_code  = 0;
-  mysinfo->si_pid   = getpid ();       /* ?why? */
-  mysinfo->si_uid   = getuid ();       /* ?why? */
+  get_last_target_status (&wait_ptid, &wait_status);
+  if (ptid_equal (wait_ptid, inferior_ptid)
+      && wait_status.kind == TARGET_WAITKIND_STOPPED
+      && wait_status.value.sig == target_signal_from_host (signo)
+      && proc_get_status (pi)
+#ifdef NEW_PROC_API
+      && pi->prstatus.pr_lwp.pr_info.si_signo == signo
+#else
+      && pi->prstatus.pr_info.si_signo == signo
+#endif
+      )
+    /* Use the siginfo associated with the signal being
+       redelivered.  */
+#ifdef NEW_PROC_API
+    memcpy (mysinfo, &pi->prstatus.pr_lwp.pr_info, sizeof (gdb_siginfo_t));
+#else
+    memcpy (mysinfo, &pi->prstatus.pr_info, sizeof (gdb_siginfo_t));
+#endif
+  else
+    {
+      mysinfo->si_signo = signo;
+      mysinfo->si_code  = 0;
+      mysinfo->si_pid   = getpid ();       /* ?why? */
+      mysinfo->si_uid   = getuid ();       /* ?why? */
+    }
 
 #ifdef NEW_PROC_API
   arg.cmd = PCSSIG;
@@ -3689,6 +3710,7 @@ procfs_fetch_registers (struct regcache *regcache, int regnum)
   procinfo *pi;
   int pid = PIDGET (inferior_ptid);
   int tid = TIDGET (inferior_ptid);
+  struct gdbarch *gdbarch = get_regcache_arch (regcache);
 
   /* First look up procinfo for the main process.  */
   pi = find_procinfo_or_die (pid, 0);
@@ -3709,13 +3731,13 @@ procfs_fetch_registers (struct regcache *regcache, int regnum)
 
   supply_gregset (regcache, (const gdb_gregset_t *) gregs);
 
-  if (FP0_REGNUM >= 0)         /* Do we have an FPU?  */
+  if (gdbarch_fp0_regnum (gdbarch) >= 0) /* Do we have an FPU?  */
     {
       gdb_fpregset_t *fpregs;
 
-      if ((regnum >= 0 && regnum < FP0_REGNUM)
-         || regnum == PC_REGNUM
-         || regnum == SP_REGNUM)
+      if ((regnum >= 0 && regnum < gdbarch_fp0_regnum (gdbarch))
+         || regnum == gdbarch_pc_regnum (gdbarch)
+         || regnum == gdbarch_sp_regnum (gdbarch))
        return;                 /* Not a floating point register.  */
 
       fpregs = proc_get_fpregs (pi);
@@ -3754,6 +3776,7 @@ procfs_store_registers (struct regcache *regcache, int regnum)
   procinfo *pi;
   int pid = PIDGET (inferior_ptid);
   int tid = TIDGET (inferior_ptid);
+  struct gdbarch *gdbarch = get_regcache_arch (regcache);
 
   /* First find procinfo for main process.  */
   pi = find_procinfo_or_die (pid, 0);
@@ -3776,13 +3799,13 @@ procfs_store_registers (struct regcache *regcache, int regnum)
   if (!proc_set_gregs (pi))
     proc_error (pi, "store_registers, set_gregs", __LINE__);
 
-  if (FP0_REGNUM >= 0)         /* Do we have an FPU?  */
+  if (gdbarch_fp0_regnum (gdbarch) >= 0) /* Do we have an FPU?  */
     {
       gdb_fpregset_t *fpregs;
 
-      if ((regnum >= 0 && regnum < FP0_REGNUM)
-         || regnum == PC_REGNUM
-         || regnum == SP_REGNUM)
+      if ((regnum >= 0 && regnum < gdbarch_fp0_regnum (gdbarch))
+         || regnum == gdbarch_pc_regnum (gdbarch)
+         || regnum == gdbarch_sp_regnum (gdbarch))
        return;                 /* Not a floating point register.  */
 
       fpregs = proc_get_fpregs (pi);
@@ -4413,7 +4436,7 @@ invalidate_cache (procinfo *parent, procinfo *pi, void *ptr)
       if (!proc_set_gregs (pi))        /* flush gregs cache */
        proc_warn (pi, "target_resume, set_gregs",
                   __LINE__);
-  if (FP0_REGNUM >= 0)
+  if (gdbarch_fp0_regnum (current_gdbarch) >= 0)
     if (pi->fpregs_dirty)
       if (parent == NULL ||
          proc_get_current_thread (parent) != pi->tid)