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solib-weak.exp revision 1.11 
      1 #   Copyright 2006-2024 Free Software Foundation, Inc.
      2 
      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.
      7 #
      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.
     12 #
     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/>.
     15 
     16 # Test setting breakpoints on shared library functions provided by more
     17 # than one shared library, when one of the implementations is a "weak"
     18 # symbol.  GDB should set a breakpoint at the first copy it finds.
     19 
     20 require allow_shlib_tests
     21 
     22 # These targets have shared libraries, but weak symbols are not meaningful.
     23 if {([istarget *-*-mingw*]
     24      || [istarget *-*-cygwin*]
     25      || [istarget *-*-pe*])} {
     26     return 0
     27 }
     28 
     29 # This test uses GCC-specific syntax.
     30 if {![test_compiler_info "gcc-*"]} {
     31     return 0
     32 }
     33 
     34 proc do_test { lib1opts lib2opts lib1first } {
     35     global srcdir subdir
     36 
     37     set testfile "solib-weak"
     38     set srcfile ${testfile}.c
     39 
     40     set libfile1 "weaklib1"
     41     set libfile2 "weaklib2"
     42     set lib1src ${srcdir}/${subdir}/${libfile1}.c
     43     set lib2src ${srcdir}/${subdir}/${libfile2}.c
     44 
     45     # Select a unique name for this test.  Give each library and
     46     # executable a name reflecting its options, so that file caching
     47     # on the target system does not pick up the wrong file.
     48     set testopts ""
     49     if {$lib1opts == ""} {
     50 	append testopts "lib1 nodebug, "
     51     } else {
     52 	append testopts "lib1 debug, "
     53 	append lib1 "-dbg"
     54     }
     55     if {$lib2opts == ""} {
     56 	append testopts "lib2 nodebug, "
     57     } else {
     58 	append testopts "lib2 debug, "
     59 	append lib2 "-dbg"
     60     }
     61     if {$lib1first} {
     62 	append testopts "lib1 first"
     63     } else {
     64 	append testopts "lib2 first"
     65 	append testfile "-lib2"
     66     }
     67 
     68     set binfile [standard_output_file ${testfile}]
     69     set lib1 [standard_output_file ${libfile1}.sl]
     70     set lib2 [standard_output_file ${libfile2}.sl]
     71 
     72     if $lib1first {
     73 	set exec_opts [list debug shlib=${lib1} shlib=${lib2}]
     74 	set expected_file ${libfile1}
     75     } else {
     76 	set exec_opts [list debug shlib=${lib2} shlib=${lib1}]
     77 	set expected_file ${libfile2}
     78     }
     79 
     80     if { [gdb_compile_shlib ${lib1src} ${lib1} ${lib1opts}] != ""
     81 	 || [gdb_compile_shlib ${lib2src} ${lib2} ${lib2opts}] != ""
     82 	 || [gdb_compile "${srcdir}/${subdir}/${srcfile}" ${binfile} executable $exec_opts] != ""} {
     83 	return -1
     84     }
     85 
     86     with_test_prefix $testopts {
     87 	clean_restart $binfile
     88 	gdb_load_shlib $lib1
     89 	gdb_load_shlib $lib2
     90 
     91 	runto_main
     92 
     93 	gdb_breakpoint "bar"
     94 
     95 	gdb_test "continue" "Breakpoint .* \\.?bar .*${expected_file}\\..*" \
     96 	    "run to breakpoint"
     97     }
     98 }
     99 
    100 foreach lib1opts {{} {debug}} {
    101     foreach lib2opts {{} {debug}} {
    102 	foreach lib1first {1 0} {
    103 	    do_test $lib1opts $lib2opts $lib1first
    104 	}
    105     }
    106 }
    107