Set dynamic tag VMA and size from dynamic section when possible

[external/binutils.git] / gdb / linux-tdep.c

diff --git a/gdb/linux-tdep.c b/gdb/linux-tdep.c
index 000efc8..b8d063f 100644 (file)
--- a/gdb/linux-tdep.c
+++ b/gdb/linux-tdep.c
@@ -1,6 +1,6 @@
 /* Target-dependent code for GNU/Linux, architecture independent.
 
-   Copyright (C) 2009-2015 Free Software Foundation, Inc.
+   Copyright (C) 2009-2016 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -243,14 +243,14 @@ get_linux_inferior_data (void)
   return info;
 }
 
-/* This function is suitable for architectures that don't
-   extend/override the standard siginfo structure.  */
+/* See linux-tdep.h.  */
 
-static struct type *
-linux_get_siginfo_type (struct gdbarch *gdbarch)
+struct type *
+linux_get_siginfo_type_with_fields (struct gdbarch *gdbarch,
+                                   linux_siginfo_extra_fields extra_fields)
 {
   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;
@@ -266,6 +266,8 @@ 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 */
@@ -341,6 +343,18 @@ 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);
+
+  /* Additional bound fields for _sigfault in case they were requested.  */
+  if ((extra_fields & LINUX_SIGINFO_FIELD_ADDR_BND) != 0)
+    {
+      struct type *sigfault_bnd_fields;
+
+      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 */
@@ -364,6 +378,15 @@ linux_get_siginfo_type (struct gdbarch *gdbarch)
   return siginfo_type;
 }
 
+/* This function is suitable for architectures that don't
+   extend/override the standard siginfo structure.  */
+
+static struct type *
+linux_get_siginfo_type (struct gdbarch *gdbarch)
+{
+  return linux_get_siginfo_type_with_fields (gdbarch, 0);
+}
+
 /* Return true if the target is running on uClinux instead of normal
    Linux kernel.  */
 
@@ -1734,7 +1757,6 @@ linux_fill_prpsinfo (struct elf_internal_linux_prpsinfo *p)
   int n_fields = 0;
   /* Cleanups.  */
   struct cleanup *c;
-  int i;
 
   gdb_assert (p != NULL);
 
@@ -1766,7 +1788,7 @@ linux_fill_prpsinfo (struct elf_internal_linux_prpsinfo *p)
 
   psargs = xstrdup (fname);
   if (infargs != NULL)
-    psargs = reconcat (psargs, psargs, " ", infargs, NULL);
+    psargs = reconcat (psargs, psargs, " ", infargs, (char *) NULL);
 
   make_cleanup (xfree, psargs);
 
@@ -2403,7 +2425,8 @@ linux_displaced_step_location (struct gdbarch *gdbarch)
      location.  The auxiliary vector gets us the PowerPC-side entry
      point address instead.  */
   if (target_auxv_search (&current_target, AT_ENTRY, &addr) <= 0)
-    error (_("Cannot find AT_ENTRY auxiliary vector entry."));
+    throw_error (NOT_SUPPORTED_ERROR,
+                _("Cannot find AT_ENTRY auxiliary vector entry."));
 
   /* Make certain that the address points at real code, and not a
      function descriptor.  */