From: Joel Brobecker <brobecker@gnat.com>
Date: Wed, 4 Jan 2012 13:15:20 +0000 (+0000)
Subject: linespec: keep function descriptors during minimal symbol search
X-Git-Tag: sid-snapshot-20120201~272
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=1a2da5eef019728312010d41acce8551de21c175;p=platform%2Fupstream%2Fbinutils.git

linespec: keep function descriptors during minimal symbol search

When discarding data (minimal) symbols, we need to be careful to
not throw away the function descriptors.  This makes a difference
on platforms where these descriptors are used and live in a data
section.

gdb/ChangeLog:

        * linespec.c (add_minsym): Preserve function descriptors.
---

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 374a445..f610db2 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,7 @@
+2012-01-04  Joel Brobecker  <brobecker@adacore.com>
+
+	* linespec.c (add_minsym): Preserve function descriptors.
+
 2012-01-04  Ulrich Weigand  <uweigand@de.ibm.com>
 
 	* breakpoint.c (all_locations_are_pending): Consider locations
diff --git a/gdb/linespec.c b/gdb/linespec.c
index 3505af9..6276a3a 100644
--- a/gdb/linespec.c
+++ b/gdb/linespec.c
@@ -2799,7 +2799,17 @@ add_minsym (struct minimal_symbol *minsym, void *d)
 	case mst_abs:
 	case mst_file_data:
 	case mst_file_bss:
-	return;
+	  {
+	    /* Make sure this minsym is not a function descriptor
+	       before we decide to discard it.  */
+	    struct gdbarch *gdbarch = info->objfile->gdbarch;
+	    CORE_ADDR addr = gdbarch_convert_from_func_ptr_addr
+			       (gdbarch, SYMBOL_VALUE_ADDRESS (minsym),
+				&current_target);
+
+	    if (addr == SYMBOL_VALUE_ADDRESS (minsym))
+	      return;
+	  }
       }
 
   mo.minsym = minsym;