http://sourceware.org/ml/gdb-patches/2009-10/msg00142.html

Subject: [patch] Fix GNU/Linux core open: Can't read pathname for load map:  Input/output error.

[ New patch variant.  ]

commit 7d760051ffb8a23cdc51342d4e6243fbc462f73f

Author: Ulrich Weigand <uweigand@de.ibm.com>

Date:   Wed Sep 25 11:52:50 2013 +0000

Index: gdb-7.6.50.20130731-cvs/gdb/testsuite/gdb.base/solib-symbol.exp

===================================================================

--- gdb-7.6.50.20130731-cvs.orig/gdb/testsuite/gdb.base/solib-symbol.exp	2013-08-02 16:27:28.833259471 +0200

+++ gdb-7.6.50.20130731-cvs/gdb/testsuite/gdb.base/solib-symbol.exp	2013-08-02 16:28:22.549330973 +0200

@@ -29,6 +29,7 @@ set testfile "solib-symbol-main"

 set srcfile ${srcdir}/${subdir}/${testfile}.c

 set binfile [standard_output_file ${testfile}]

 set bin_flags [list debug shlib=${binfile_lib}]

+set executable ${testfile}

 if [get_compiler_info] {

     return -1

@@ -72,8 +73,26 @@ gdb_test "br foo2" \

 	 "Breakpoint.*: foo2. .2 locations..*" \

 	 "foo2 in mdlib"

-gdb_exit

+# Test GDB warns for shared libraris which have not been found.

-return 0

+gdb_test "info sharedlibrary" "/${libname}.*"

+clean_restart ${executable}

+gdb_breakpoint "main"

+gdb_run_cmd

+set test "no warning for missing libraries"

+gdb_test_multiple "" $test {

+    -re "warning: Could not load shared library symbols for \[0-9\]+ libraries,.*\r\n$gdb_prompt $" {

+	fail $test

+    }

+    -re "Breakpoint \[0-9\]+, main .*\r\n$gdb_prompt $" {

+	pass $test

+    }

+}

+clean_restart ${executable}

+gdb_test_no_output "set solib-absolute-prefix /doESnotEXIST"

+gdb_breakpoint "main"

+gdb_run_cmd

+gdb_test "" "warning: Could not load shared library symbols for \[0-9\]+ libraries,.*\r\nBreakpoint \[0-9\]+, main .*" \

+	 "warning for missing libraries"