1 # Copyright 2012 Free Software Foundation, Inc.
3 # This program is free software; you can redistribute it and/or modify
4 # it under the terms of the GNU General Public License as published by
5 # the Free Software Foundation; either version 3 of the License, or
6 # (at your option) any later version.
8 # This program is distributed in the hope that it will be useful,
9 # but WITHOUT ANY WARRANTY; without even the implied warranty of
10 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 # GNU General Public License for more details.
13 # You should have received a copy of the GNU General Public License
14 # along with this program. If not, see <http://www.gnu.org/licenses/>. */
16 set executable ctxobj-m
18 # The sources used to build two shared libraries (SO). We use the exact
19 # same sources to build both SOs, but differentiate them through the use
20 # of macros defined when calling the compiler.
22 # We need two source files per SO, because we need to test the situation
23 # where we are trying to print the value of a global variable defined
24 # in that SO while the variable's associated symtab has not been created
26 set libsrc [list "${srcdir}/${subdir}/ctxobj-v.c" \
27 "${srcdir}/${subdir}/ctxobj-f.c"]
29 set libobj1 "${objdir}/${subdir}/libctxobj1.so"
30 set libobj2 "${objdir}/${subdir}/libctxobj2.so"
32 set libobj1_opts { debug additional_flags=-fPIC
33 additional_flags=-DVERSION=104
34 additional_flags=-DGET_VERSION=get_version_1 }
35 set libobj2_opts { debug additional_flags=-fPIC
36 additional_flags=-DVERSION=203
37 additional_flags=-DGET_VERSION=get_version_2 }
39 if { [gdb_compile_shlib $libsrc $libobj1 $libobj1_opts ] != "" } {
42 if { [gdb_compile_shlib $libsrc $libobj2 $libobj2_opts ] != "" } {
45 if { [gdb_compile "${srcdir}/${subdir}/${executable}.c" \
46 "${objdir}/${subdir}/${executable}" \
48 [list debug shlib=${libobj1} shlib=${libobj2}]]
53 clean_restart $executable
54 gdb_load_shlibs $libobj1 $libobj2
57 untested "could not run to main"
61 set bp_location [gdb_get_line_number "STOP" "ctxobj-f.c"]
62 gdb_test "break ctxobj-f.c:$bp_location" \
63 "Breakpoint \[0-9\]+ at 0x\[0-9a-fA-F\]+: .*" \
64 "break in get_version functions"
67 "Breakpoint $decimal, get_version_1 \\(\\).*" \
68 "continue to get_version_1"
70 # Try printing "this_version_num". There are two global variables
71 # with that name, and some systems such as GNU/Linux merge them
72 # into one single entity, while some other systems such as Windows
73 # keep them separate. In the first situation, we have to verify
74 # that GDB does not randomly select the wrong instance. And in
75 # the second case, we have to verify that GDB prints the value
76 # of the instance from the current debugging context (the shared
77 # library currently being debugged).
79 # We perform two tests: The first print test verifies that we are
80 # doing things right when the partial symtab hasn't been expanded.
81 # And the second print test will do the same, but after the partial
82 # symtab has been expanded.
84 # To avoid adding target-specific code in this testcase, the program
85 # sets a local variable named 'v' with the value of the global
86 # variable 'this_version_number'. This allows us to compare the value
87 # that GDB thinks 'this_version_num' has, against the actual value
88 # seen by the program itself.
90 gdb_test "print this_version_num == v" \
92 "print libctxobj1's this_version_num from partial symtab"
94 gdb_test "print this_version_num == v" \
96 "print libctxobj1's this_version_num from symtab"
98 # Do the same, but from get_version_2.
100 gdb_test "continue" \
101 "Breakpoint $decimal, get_version_2 \\(\\).*" \
102 "continue to get_version_2"
104 gdb_test "print this_version_num == v" \
106 "print libctxobj2's this_version_num from partial symtab"
108 gdb_test "print this_version_num == v" \
110 "print libctxobj2's this_version_num from symtab"