gdb: add target_ops::supports_displaced_step

[deliverable/binutils-gdb.git] / gdb / sol2-tdep.c

diff --git a/gdb/sol2-tdep.c b/gdb/sol2-tdep.c
index 788a55e06a5875d918933b5f52c569bd1f10b246..03b510c9adedbbbad25a6ba95d3190cefaff04ba 100644 (file)
--- a/gdb/sol2-tdep.c
+++ b/gdb/sol2-tdep.c
@@ -1,12 +1,12 @@
 /* Target-dependent code for Solaris.
 
-   Copyright (C) 2006 Free Software Foundation, Inc.
+   Copyright (C) 2006-2020 Free Software Foundation, Inc.
 
    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
+   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,
@@ -15,24 +15,53 @@
    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.  */
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #include "defs.h"
 #include "frame.h"
 #include "symtab.h"
+#include "inferior.h"
+#include "objfiles.h"
 
 #include "sol2-tdep.h"
 
 CORE_ADDR
 sol2_skip_solib_resolver (struct gdbarch *gdbarch, CORE_ADDR pc)
 {
-  struct minimal_symbol *msym;
+  struct bound_minimal_symbol msym;
 
   msym = lookup_minimal_symbol("elf_bndr", NULL, NULL);
-  if (msym && SYMBOL_VALUE_ADDRESS (msym) == pc)
-    return frame_pc_unwind (get_current_frame ());
+  if (msym.minsym && BMSYMBOL_VALUE_ADDRESS (msym) == pc)
+    return frame_unwind_caller_pc (get_current_frame ());
 
   return 0;
 }
+
+/* This is how we want PTIDs from Solaris core files to be
+   printed.  */
+
+std::string
+sol2_core_pid_to_str (struct gdbarch *gdbarch, ptid_t ptid)
+{
+  struct inferior *inf;
+  int pid;
+
+  /* Check whether we're printing an LWP (gdb thread) or a
+     process.  */
+  pid = ptid.lwp ();
+  if (pid != 0)
+    {
+      /* A thread.  */
+      return string_printf ("LWP %ld", ptid.lwp ());
+    }
+
+  /* GDB didn't use to put a NT_PSTATUS note in Solaris cores.  If
+     that's missing, then we're dealing with a fake PID corelow.c made
+     up.  */
+  inf = find_inferior_ptid (current_inferior ()->process_target (), ptid);
+  if (inf == NULL || inf->fake_pid_p)
+    return "<core>";
+
+  /* Not fake; print as usual.  */
+  return normal_pid_to_str (ptid);
+}