gdb/testsuite/gdb.cp/except-multi-location.exp

# Copyright 2019-2021 Free Software Foundation, Inc.
# 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 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# 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, see <http://www.gnu.org/licenses/>.

# Regression test for a GDB internal error that would trigger if a
# "catch catch" catchpoint ended up with multiple locations.  This
# testcase exercises that scenario by building the binary with
# -static-libgcc/-static-libstdc++ and a shared library that depends
# on the libstc++.so DSO (which is how GDB was built and revealed the
# bug), and vice versa.

if {[skip_shlib_tests]} {
    return 0
}

# STATIC_BIN indicates whether to build the main binary with
# -static-libgcc/-static-libstdc++.  STATIC_LIB is the same, but for
# the shared library.
proc test_multi_libstdcpp {static_bin static_lib} {
    global srcdir subdir
    global decimal hex

    # Library file.
    set libname "except-multi-location-lib"
    set srcfile_lib ${srcdir}/${subdir}/${libname}.cc
    set binfile_lib [standard_output_file ${libname}-$static_bin-$static_lib.so]
    set lib_flags {debug c++}
    if {$static_lib} {
	lappend lib_flags additional_flags=-static-libgcc additional_flags=-static-libstdc++
    }

    # Binary file.
    set testfile "except-multi-location-main"
    set srcfile ${srcdir}/${subdir}/${testfile}.cc
    set binfile [standard_output_file ${testfile}-$static_bin-$static_lib]
    set bin_flags [list debug c++ shlib=${binfile_lib}]
    if {$static_bin} {
	lappend bin_flags additional_flags=-static-libgcc additional_flags=-static-libstdc++
    }

    if { [gdb_compile_shlib ${srcfile_lib} ${binfile_lib} $lib_flags] != ""
	 || [gdb_compile ${srcfile} ${binfile} executable $bin_flags] != "" } {
	untested "failed to compile"
	return -1
    }

    clean_restart

    gdb_load ${binfile}
    gdb_load_shlib $binfile_lib

    if ![runto_main] {
	return 0
    }

    gdb_test "catch catch" "Catchpoint \[0-9\]+ \\(catch\\)"
    gdb_test "catch throw" "Catchpoint \[0-9\]+ \\(throw\\)"
    gdb_test "catch rethrow" "Catchpoint \[0-9\]+ \\(rethrow\\)"

    set ws "\[ \t\]*"
    gdb_test "info breakpoints" \
	[multi_line \
	     "${decimal}${ws}catchpoint${ws}keep${ws}y${ws}exception catch" \
	     "${decimal}${ws}catchpoint${ws}keep${ws}y${ws}exception throw" \
	     "${decimal}${ws}catchpoint${ws}keep${ws}y${ws}exception rethrow"]
}

# Try different static/not-static combinations.
foreach_with_prefix static_lib {"0" "1"} {
    foreach_with_prefix static_bin {"0" "1"} {
	test_multi_libstdcpp $static_lib $static_bin
    }
}