507 lines
20 KiB
Text
507 lines
20 KiB
Text
# Copyright 1992-2016 Free Software Foundation, Inc.
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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# This file was written by Fred Fish. (fnf@cygnus.com)
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# and modified by Bob Manson. (manson@cygnus.com)
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standard_testfile
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set compile_flags {debug}
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if [support_complex_tests] {
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lappend compile_flags "additional_flags=-DTEST_COMPLEX"
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}
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# Some targets can't do function calls, so don't even bother with this
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# test.
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if [target_info exists gdb,cannot_call_functions] {
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setup_xfail "*-*-*" 2416
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fail "This target can not call functions"
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continue
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}
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# FIXME: Before calling this proc, we should probably verify that
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# we can call inferior functions and get a valid integral value
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# returned.
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# Note that it is OK to check for 0 or 1 as the returned values, because C
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# specifies that the numeric value of a relational or logical expression
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# (computed in the inferior) is 1 for true and 0 for false.
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proc do_function_calls {} {
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global gdb_prompt
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# We need to up this because this can be really slow on some boards.
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set timeout 60
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# If any of these calls segv we don't want to affect subsequent tests.
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# E.g., we want to ensure register values are restored.
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gdb_test_no_output "set unwindonsignal on"
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gdb_test "p t_char_values(0,0)" " = 0"
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gdb_test "p t_char_values('a','b')" " = 1"
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gdb_test "p t_char_values(char_val1,char_val2)" " = 1"
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gdb_test "p t_char_values('a',char_val2)" " = 1"
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gdb_test "p t_char_values(char_val1,'b')" " = 1"
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gdb_test "p t_short_values(0,0)" " = 0"
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gdb_test "p t_short_values(10,-23)" " = 1"
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gdb_test "p t_short_values(short_val1,short_val2)" " = 1"
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gdb_test "p t_short_values(10,short_val2)" " = 1"
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gdb_test "p t_short_values(short_val1,-23)" " = 1"
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gdb_test "p t_int_values(0,0)" " = 0"
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gdb_test "p t_int_values(87,-26)" " = 1"
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gdb_test "p t_int_values(int_val1,int_val2)" " = 1"
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gdb_test "p t_int_values(87,int_val2)" " = 1"
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gdb_test "p t_int_values(int_val1,-26)" " = 1"
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gdb_test "p t_long_values(0,0)" " = 0"
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gdb_test "p t_long_values(789,-321)" " = 1"
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gdb_test "p t_long_values(long_val1,long_val2)" " = 1"
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gdb_test "p t_long_values(789,long_val2)" " = 1"
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gdb_test "p t_long_values(long_val1,-321)" " = 1"
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if ![target_info exists gdb,skip_float_tests] {
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gdb_test "p t_float_values(0.0,0.0)" " = 0"
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# These next four tests fail on the mn10300.
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# The first value is passed in regs, the other in memory.
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# Gcc emits different stabs for the two parameters; the first is
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# claimed to be a float, the second a double.
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# dbxout.c in gcc claims this is the desired behavior.
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# These tests also fail for RealView, because GDB can not tell that
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# the function is unprototyped.
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setup_xfail "mn10300-*-*"
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if { [test_compiler_info "armcc-*"] } { setup_xfail "*-*-*" }
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gdb_test "p t_float_values(3.14159,-2.3765)" " = 1"
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setup_xfail "mn10300-*-*"
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if { [test_compiler_info "armcc-*"] } { setup_xfail "*-*-*" }
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gdb_test "p t_float_values(float_val1,float_val2)" " = 1"
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setup_xfail "mn10300-*-*"
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if { [test_compiler_info "armcc-*"] } { setup_xfail "*-*-*" }
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gdb_test "p t_float_values(3.14159,float_val2)" " = 1"
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setup_xfail "mn10300-*-*"
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if { [test_compiler_info "armcc-*"] } { setup_xfail "*-*-*" }
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gdb_test "p t_float_values(float_val1,-2.3765)" " = 1"
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# Test passing of arguments which might not be widened.
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gdb_test "p t_float_values2(0.0,0.0)" " = 0"
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gdb_test "p t_float_values2(3.14159,float_val2)" " = 1"
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gdb_test "p t_float_many_args (float_val1, float_val2, float_val3, float_val4, float_val5, float_val6, float_val7, float_val8, float_val9, float_val10, float_val11, float_val12, float_val13, float_val14, float_val15)" " = 1" "Call function with many float arguments."
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gdb_test "p t_small_values(1,2,3,4,5,6,7,8,9,10)" " = 55"
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gdb_test "p t_double_values(0.0,0.0)" " = 0"
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gdb_test "p t_double_values(45.654,-67.66)" " = 1"
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gdb_test "p t_double_values(double_val1,double_val2)" " = 1"
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gdb_test "p t_double_values(45.654,double_val2)" " = 1"
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gdb_test "p t_double_values(double_val1,-67.66)" " = 1"
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gdb_test "p t_double_many_args (double_val1, double_val2, double_val3, double_val4, double_val5, double_val6, double_val7, double_val8, double_val9, double_val10, double_val11, double_val12, double_val13, double_val14, double_val15)" " = 1" "Call function with many double arguments."
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gdb_test "p t_double_int(99.0, 1)" " = 0"
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gdb_test "p t_double_int(99.0, 99)" " = 1"
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gdb_test "p t_int_double(99, 1.0)" " = 0"
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gdb_test "p t_int_double(99, 99.0)" " = 1"
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}
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if [support_complex_tests] {
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gdb_test "p t_float_complex_values(fc1, fc2)" " = 1"
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gdb_test "p t_float_complex_values(fc3, fc4)" " = 0"
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gdb_test "p t_float_complex_many_args(fc1, fc2, fc3, fc4, fc1, fc2, fc3, fc4, fc1, fc2, fc3, fc4, fc1, fc2, fc3, fc4)" " = 1"
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gdb_test "p t_float_complex_many_args(fc1, fc1, fc1, fc1, fc1, fc1, fc1, fc1, fc1, fc1, fc1, fc1, fc1, fc1, fc1, fc1)" " = 0"
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gdb_test "p t_double_complex_values(dc1, dc2)" " = 1"
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gdb_test "p t_double_complex_values(dc3, dc4)" " = 0"
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gdb_test "p t_double_complex_many_args(dc1, dc2, dc3, dc4, dc1, dc2, dc3, dc4, dc1, dc2, dc3, dc4, dc1, dc2, dc3, dc4)" " = 1"
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gdb_test "p t_double_complex_many_args(dc1, dc1, dc1, dc1, dc1, dc1, dc1, dc1, dc1, dc1, dc1, dc1, dc1, dc1, dc1, dc1)" " = 0"
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gdb_test "p t_long_double_complex_values(ldc1, ldc2)" " = 1"
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gdb_test "p t_long_double_complex_values(ldc3, ldc4)" " = 0"
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gdb_test "p t_long_double_complex_many_args(ldc1, ldc2, ldc3, ldc4, ldc1, ldc2, ldc3, ldc4, ldc1, ldc2, ldc3, ldc4, ldc1, ldc2, ldc3, ldc4)" " = 1"
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gdb_test "p t_long_double_complex_many_args(ldc1, ldc1, ldc1, ldc1, ldc1, ldc1, ldc1,ldc1, ldc1, ldc1, ldc1, ldc1, ldc1, ldc1, ldc1, ldc1)" " = 0"
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}
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gdb_test "p t_string_values(string_val2,string_val1)" " = 0"
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gdb_test "p t_string_values(string_val1,string_val2)" " = 1"
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gdb_test "p t_string_values(\"string 1\",\"string 2\")" " = 1"
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gdb_test "p t_string_values(\"string 1\",string_val2)" " = 1"
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gdb_test "p t_string_values(string_val1,\"string 2\")" " = 1"
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gdb_test "p t_char_array_values(char_array_val2,char_array_val1)" " = 0"
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gdb_test "p t_char_array_values(char_array_val1,char_array_val2)" " = 1"
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gdb_test "p t_char_array_values(\"carray 1\",\"carray 2\")" " = 1"
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gdb_test "p t_char_array_values(\"carray 1\",char_array_val2)" " = 1"
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gdb_test "p t_char_array_values(char_array_val1,\"carray 2\")" " = 1"
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gdb_test "p doubleit(4)" " = 8"
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gdb_test "p add(4,5)" " = 9"
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gdb_test "p t_func_values(func_val2,func_val1)" " = 0"
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gdb_test "p t_func_values(func_val1,func_val2)" " = 1"
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gdb_test "p function_struct.func(5)" " = 10"
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gdb_test "p function_struct_ptr->func(10)" " = 20"
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# GDB currently screws up the passing of function parameters for
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# ABIs that use function descriptors. Instead of passing the
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# address of te function descriptor, GDB passes the address of the
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# function body. This results in the called function treating the
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# first few instructions of the function proper as a descriptor
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# and attempting a jump through that (a totally random address).
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setup_kfail gdb/1457 "rs6000*-*-aix*"
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setup_kfail gdb/1457 "powerpc*-*-aix*"
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gdb_test "p t_func_values(add,func_val2)" " = 1"
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setup_kfail gdb/1457 "rs6000*-*-aix*"
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setup_kfail gdb/1457 "powerpc*-*-aix*"
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gdb_test "p t_func_values(func_val1,doubleit)" " = 1"
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setup_kfail gdb/1457 "rs6000*-*-aix*"
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setup_kfail gdb/1457 "powerpc*-*-aix*"
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gdb_test "p t_call_add(add,3,4)" " = 7"
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gdb_test "p t_call_add(func_val1,3,4)" " = 7"
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gdb_test "p t_enum_value1(enumval1)" " = 1"
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gdb_test "p t_enum_value1(enum_val1)" " = 1"
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gdb_test "p t_enum_value1(enum_val2)" " = 0"
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gdb_test "p t_enum_value2(enumval2)" " = 1"
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gdb_test "p t_enum_value2(enum_val2)" " = 1"
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gdb_test "p t_enum_value2(enum_val1)" " = 0"
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gdb_test "p sum_args(1,{2})" " = 2"
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gdb_test "p sum_args(2,{2,3})" " = 5"
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gdb_test "p sum_args(3,{2,3,4})" " = 9"
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gdb_test "p sum_args(4,{2,3,4,5})" " = 14"
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gdb_test "p sum10 (1, 2, 3, 4, 5, 6, 7, 8, 9, 10)" " = 55"
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gdb_test "p cmp10 (0, 1, 2, 3, 4, 5, 6, 7, 8, 9)" " = 1"
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gdb_test "p t_structs_c(struct_val1)" "= 120 'x'" \
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"call inferior func with struct - returns char"
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gdb_test "p t_structs_s(struct_val1)" "= 87" \
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"call inferior func with struct - returns short"
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gdb_test "p t_structs_i(struct_val1)" "= 76" \
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"call inferior func with struct - returns int"
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gdb_test "p t_structs_l(struct_val1)" "= 51" \
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"call inferior func with struct - returns long"
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if ![target_info exists gdb,skip_float_tests] {
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gdb_test "p t_structs_f(struct_val1)" "= 2.12.*" \
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"call inferior func with struct - returns float"
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gdb_test "p t_structs_d(struct_val1)" "= 9.87.*" \
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"call inferior func with struct - returns double"
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}
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if [support_complex_tests] {
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gdb_test "p t_structs_fc(struct_val1)" ".*= 3 \\+ 3 \\* I" \
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"call inferior func with struct - returns float _Complex"
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gdb_test "p t_structs_dc(struct_val1)" ".*= 4 \\+ 4 \\* I" \
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"call inferior func with struct - returns double _Complex"
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gdb_test "p t_structs_ldc(struct_val1)" "= 5 \\+ 5 \\* I" \
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"call inferior func with struct - returns long double _Complex"
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}
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gdb_test "p t_structs_a(struct_val1)" "= (.unsigned char .. )?<.*buf.*> \"foo\"" \
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"call inferior func with struct - returns char *"
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# Restore default value.
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gdb_test_no_output "set unwindonsignal off"
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}
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# Procedure to get current content of all registers.
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proc fetch_all_registers {test} {
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global gdb_prompt
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set all_registers_lines {}
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set bad -1
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# Former trailing `\[\r\n\]+' may eat just \r leaving \n in the buffer
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# corrupting the next matches.
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if {[gdb_test_multiple "info all-registers" $test {
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-re "info all-registers\r\n" {
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exp_continue
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}
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-ex "The program has no registers now" {
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set bad 1
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exp_continue
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}
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-re "^bspstore\[ \t\]+\[^\r\n\]+\r\n" {
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if [istarget "ia64-*-*"] {
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# Filter out bspstore which is specially tied to bsp,
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# giving spurious differences.
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} else {
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lappend all_registers_lines $expect_out(0,string)
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}
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exp_continue
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}
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-re "^pstate\[ \t\]+\[^\r\n\]+\r\n" {
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if [istarget "sparc64-*-linux-gnu"] {
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# Filter out the pstate register, since in sparc64
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# targets the Linux kernel disables pstate.PEF when
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# returning from traps, giving spurious differences.
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} else {
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lappend all_registers_lines $expect_out(0,string)
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}
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exp_continue
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}
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-re "^last_break\[ \t\]+\[^\r\n\]+\r\n" {
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if [istarget "s390*-*-*"] {
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# Filter out last_break which is read-only,
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# giving spurious differences.
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} else {
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lappend all_registers_lines $expect_out(0,string)
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}
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exp_continue
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}
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-re "^\[^ \t\]+\[ \t\]+\[^\r\n\]+\r\n" {
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lappend all_registers_lines $expect_out(0,string)
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exp_continue
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}
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-re "$gdb_prompt $" {
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incr bad
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}
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-re "^\[^\r\n\]+\r\n" {
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if {!$bad} {
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warning "Unrecognized output: $expect_out(0,string)"
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set bad 1
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}
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exp_continue
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}
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}] != 0} {
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return {}
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}
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if {$bad} {
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fail $test
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return {}
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}
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pass $test
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return $all_registers_lines
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}
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proc rerun_and_prepare {} {
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if { ![runto_main] } {
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gdb_suppress_tests
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}
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gdb_test_no_output "set language c"
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get_debug_format
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# Make sure that malloc gets called and that the floating point unit
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# is initialized via a call to t_double_values.
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gdb_test "next" "t_double_values\\(double_val1, double_val2\\);.*" \
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"next to t_double_values"
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gdb_test "next" "t_structs_c\\(struct_val1\\);.*" \
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"next to t_structs_c"
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}
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proc perform_all_tests {} {
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gdb_test_no_output "set print sevenbit-strings"
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gdb_test_no_output "set print address off"
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gdb_test_no_output "set width 0"
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rerun_and_prepare
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# Save all register contents.
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set old_reg_content [fetch_all_registers "retrieve original register contents"]
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# Perform function calls.
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do_function_calls
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# Check if all registers still have the same value.
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set new_reg_content [fetch_all_registers \
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"register contents after gdb function calls"]
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if {$old_reg_content == $new_reg_content} then {
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pass "gdb function calls preserve register contents"
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} else {
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set old_reg_content $new_reg_content
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fail "gdb function calls preserve register contents"
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}
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rerun_and_prepare
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# Save all register contents.
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set old_reg_content [fetch_all_registers "retrieve original register contents"]
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# Set breakpoint at a function we will call from gdb.
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gdb_breakpoint add
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# Call function (causing a breakpoint hit in the call dummy) and do a continue,
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# make sure we are back at main and still have the same register contents.
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gdb_test "print add(4,5)" \
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"The program being debugged stopped while.*" \
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"stop at breakpoint in call dummy function"
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gdb_test "continue" "Continuing.*" "continue from call dummy breakpoint"
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if ![gdb_test "bt 2" \
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"#0 main.*" \
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"bt after continuing from call dummy breakpoint"] then {
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set new_reg_content [fetch_all_registers \
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"register contents after stop in call dummy"]
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if {$old_reg_content == $new_reg_content} then {
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pass "continue after stop in call dummy preserves register contents"
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} else {
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fail "continue after stop in call dummy preserves register contents"
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}
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}
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rerun_and_prepare
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# Set breakpoint at a function we will call from gdb.
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gdb_breakpoint add
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# Save all register contents.
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set old_reg_content [fetch_all_registers "retrieve original register contents"]
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# Call function (causing a breakpoint hit in the call dummy) and do a finish,
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# make sure we are back at main and still have the same register contents.
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gdb_test "print add(4,5)" "The program being debugged stopped while.*" \
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"call function causing a breakpoint then do a finish"
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gdb_test "finish" \
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"Value returned is .* = 9" \
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"finish from call dummy breakpoint returns correct value"
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if ![gdb_test "bt 2" \
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"#0 main.*" \
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"bt after finishing from call dummy breakpoint"] then {
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set new_reg_content [fetch_all_registers \
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"register contents after finish in call dummy"]
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if {$old_reg_content == $new_reg_content} then {
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pass "finish after stop in call dummy preserves register contents"
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} else {
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fail "finish after stop in call dummy preserves register contents"
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}
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}
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rerun_and_prepare
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# Set breakpoint at a function we will call from gdb.
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gdb_breakpoint add
|
|
# Save all register contents.
|
|
set old_reg_content [fetch_all_registers "retrieve original register contents"]
|
|
|
|
# Call function (causing a breakpoint hit in the call dummy) and do a return
|
|
# with a value, make sure we are back at main with the same register contents.
|
|
gdb_test "print add(4,5)" "The program being debugged stopped while.*" \
|
|
"call function causing a breakpoint and then do a return"
|
|
if ![gdb_test "return 7" \
|
|
"#0 main.*" \
|
|
"back at main after return from call dummy breakpoint" \
|
|
"Make add return now. .y or n.*" \
|
|
"y"] then {
|
|
set new_reg_content [fetch_all_registers \
|
|
"register contents after return in call dummy"]
|
|
if {$old_reg_content == $new_reg_content} then {
|
|
pass "return after stop in call dummy preserves register contents"
|
|
} else {
|
|
fail "return after stop in call dummy preserves register contents"
|
|
}
|
|
}
|
|
|
|
rerun_and_prepare
|
|
# Set breakpoint at a function we will call from gdb.
|
|
gdb_breakpoint add
|
|
set old_reg_content [fetch_all_registers "retrieve original register contents"]
|
|
|
|
# Call function (causing a breakpoint hit in the call dummy), and
|
|
# call another function from the call dummy frame (thereby setting up
|
|
# several nested call dummy frames). Test that backtrace and finish
|
|
# work when several call dummies are nested.
|
|
gdb_breakpoint sum10
|
|
gdb_breakpoint t_small_values
|
|
gdb_test "print add(2,3)" "The program being debugged stopped while.*" \
|
|
"stop at nested call level 1"
|
|
gdb_test "backtrace" \
|
|
"\#0 add \\(a=2, b=3\\).*\#1 <function called from gdb>.*\#2 main.*" \
|
|
"backtrace at nested call level 1"
|
|
gdb_test "print add(4,5)" "The program being debugged stopped while.*" \
|
|
"stop at nested call level 2"
|
|
gdb_test "backtrace" \
|
|
"\#0 add \\(a=4, b=5\\).*\#1 <function called from gdb>.*\#2 add \\(a=2, b=3\\).*\#3 <function called from gdb>.*\#4 main.*" \
|
|
"backtrace at nested call level 2"
|
|
gdb_test "print sum10(2,4,6,8,10,12,14,16,18,20)" \
|
|
"The program being debugged stopped while.*" \
|
|
"stop at nested call level 3"
|
|
gdb_test "backtrace" \
|
|
"\#0 sum10 \\(i0=2, i1=4, i2=6, i3=8, i4=10, i5=12, i6=14, i7=16, i8=18, i9=20\\).*\#1 <function called from gdb>.*\#2 add \\(a=4, b=5\\).*\#3 <function called from gdb>.*\#4 add \\(a=2, b=3\\).*\#5 <function called from gdb>.*\#6 main.*" \
|
|
"backtrace at nested call level 3"
|
|
gdb_test "print t_small_values(1,3,5,7,9,11,13,15,17,19)" \
|
|
"The program being debugged stopped while.*" \
|
|
"stop at nested call level 4"
|
|
gdb_test "backtrace" \
|
|
"\#0 t_small_values \\(arg1=1 '.001', arg2=3, arg3=5, arg4=7 '.a', arg5=9, arg6=11 '.v', arg7=13, arg8=15, arg9=17, arg10=19\\).*\#2 sum10 \\(i0=2, i1=4, i2=6, i3=8, i4=10, i5=12, i6=14, i7=16, i8=18, i9=20\\).*\#3 <function called from gdb>.*\#4 add \\(a=4, b=5\\).*\#5 <function called from gdb>.*\#6 add \\(a=2, b=3\\).*\#7 <function called from gdb>.*\#8 main.*" \
|
|
"backtrace at nested call level 4"
|
|
gdb_test "finish" "Value returned is .* = 100" \
|
|
"Finish from nested call level 4"
|
|
gdb_test "backtrace" \
|
|
"\#0 sum10 \\(i0=2, i1=4, i2=6, i3=8, i4=10, i5=12, i6=14, i7=16, i8=18, i9=20\\).*\#1 <function called from gdb>.*\#2 add \\(a=4, b=5\\).*\#3 <function called from gdb>.*\#4 add \\(a=2, b=3\\).*\#5 <function called from gdb>.*\#6 main.*" \
|
|
"backtrace after finish from nested call level 4"
|
|
gdb_test "finish" "Value returned is .* = 110" \
|
|
"Finish from nested call level 3"
|
|
gdb_test "backtrace" \
|
|
"\#0 add \\(a=4, b=5\\).*\#1 <function called from gdb>.*\#2 add \\(a=2, b=3\\).*\#3 <function called from gdb>.*\#4 main.*" \
|
|
"backtrace after finish from nested call level 3"
|
|
gdb_test "finish" "Value returned is .* = 9" \
|
|
"Finish from nested call level 2"
|
|
gdb_test "backtrace" \
|
|
"\#0 add \\(a=2, b=3\\).*\#1 <function called from gdb>.*\#2 main.*" \
|
|
"backtrace after finish from nested call level 2"
|
|
gdb_test "finish" "Value returned is .* = 5" \
|
|
"Finish from nested call level 1"
|
|
gdb_test "backtrace" "\#0 main .*" \
|
|
"backtrace after finish from nested call level 1"
|
|
|
|
set new_reg_content [fetch_all_registers \
|
|
"register contents after nested call dummies"]
|
|
if {$old_reg_content == $new_reg_content} then {
|
|
pass "nested call dummies preserve register contents"
|
|
} else {
|
|
fail "nested call dummies preserve register contents"
|
|
}
|
|
|
|
# GDB should not crash by internal error on $sp underflow during the inferior
|
|
# call. It is OK it will stop on some: Cannot access memory at address 0x$hex.
|
|
|
|
if {![target_info exists gdb,nosignals] && ![istarget "*-*-uclinux*"]} {
|
|
gdb_test {set $old_sp = $sp}
|
|
|
|
gdb_test {set $sp = 0}
|
|
gdb_test "call doubleit (1)" ".*" "sp == 0: call doubleit (1)"
|
|
|
|
gdb_test {set $sp = -1}
|
|
gdb_test "call doubleit (1)" ".*" "sp == -1: call doubleit (1)"
|
|
|
|
gdb_test {set $sp = $old_sp}
|
|
}
|
|
|
|
# Test function descriptor resolution - the separate debug info .opd section
|
|
# handling vs. local labels `.L'... as `Lcallfunc' starts with `L'.
|
|
|
|
gdb_test "print callfunc (Lcallfunc, 5)" " = 12"
|
|
|
|
# Regression test for function pointer cast.
|
|
gdb_test "print *((int *(*) (void)) voidfunc)()" " = 23"
|
|
}
|
|
|
|
# Perform all tests with and without function prototypes.
|
|
|
|
if { ![prepare_for_testing ${testfile}.exp $testfile $srcfile "$compile_flags additional_flags=-DPROTOTYPES"] } {
|
|
perform_all_tests
|
|
}
|
|
|
|
if { ![prepare_for_testing ${testfile}.exp $testfile $srcfile "$compile_flags additional_flags=-DNO_PROTOTYPES"] } {
|
|
with_test_prefix "noproto" perform_all_tests
|
|
}
|