1# Copyright 1998-2020 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# This file was written by Elena Zannoni (ezannoni@cygnus.com) 17 18# this file tests command line calls with functions returning structures 19# corresponding source file: call_return_struct.c 20 21 22 23 24standard_testfile .c 25 26if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug nowarnings}] != "" } { 27 untested "failed to compile" 28 return -1 29} 30 31 32 33# Create and source the file that provides information about the compiler 34# used to compile the test case. 35 36if [get_compiler_info] { 37 return -1 38} 39 40# Some targets can't do function calls, so don't even bother with this 41# test. 42if [target_info exists gdb,cannot_call_functions] { 43 unsupported "this target can not call functions" 44 continue 45} 46 47set skip_float_test [gdb_skip_float_test] 48 49# Start with a fresh gdb. 50 51clean_restart ${binfile} 52gdb_test_no_output "set print sevenbit-strings" 53gdb_test_no_output "set print address off" 54gdb_test_no_output "set width 0" 55 56 57if ![runto_main] then { 58 perror "couldn't run to breakpoint" 59 continue 60} 61 62 63set stop_line [gdb_get_line_number "-break1-"] 64gdb_test "break loop_count" \ 65 "Breakpoint.* file .*call-rt-st.c, line $stop_line\\." \ 66 "breakpoint loop_count" 67 68gdb_test "continue" \ 69 "Continuing\\..*Breakpoint.*loop_count \\(\\) at.*call-rt-st.c:$stop_line\[ \t\r\n\]+$stop_line\[\t \]+for \\(index=0; index.4; index..\\);.*\[\r\n \]+" \ 70 "continue to loop_count" 71 72gdb_test_multiple "finish" "finish out from loop count" { 73 -re "Run till exit from .0 loop_count \\(\\) at.*call-rt-st.c:$stop_line\[ \t\r\n\]+main \\(\\) at.*call-rt-st.c:${decimal}\[ \t\r\n\]+${decimal}\[\t \]+return 0;.*-finish1-.*$gdb_prompt $" { 74 pass "finish out from loop_count (finish1)" 75 } 76 -re "Run till exit from .0 loop_count \\(\\) at.*call-rt-st.c:$stop_line\[ \t\r\n\]+main \\(\\) at.*call-rt-st.c:${decimal}\[ \t\r\n\]+${decimal}\[\t \]+loop_count.*-finish2-.*$gdb_prompt $" { 77 pass "finish out from loop_count (line 775)" 78 } 79} 80 81# Ask GDB to print the value of EXPR, and expect to see the regexp 82# RESULT in the output. If we get back the error message "Function 83# return value unknown", call that an `unsupported' test; on some 84# architectures, it's impossible to find structs returned by value 85# reliably. 86proc print_struct_call { expr inf_result gdb_result } { 87 global gdb_prompt 88 global inferior_spawn_id gdb_spawn_id 89 90 set inferior_matched 0 91 set gdb_matched 0 92 93 set command "print $expr" 94 gdb_test_multiple "${command}" "${command}" { 95 -i $inferior_spawn_id 96 -re "$inf_result" { 97 set inferior_matched 1 98 if {!$gdb_matched} { 99 exp_continue 100 } 101 } 102 103 -i $gdb_spawn_id 104 -re "$gdb_result\r\n$gdb_prompt $" { 105 set gdb_matched 1 106 if {!$inferior_matched} { 107 exp_continue 108 } 109 } 110 -re "Function return value unknown.\[\r\n\]+$gdb_prompt $" { 111 unsupported "$command" 112 return 113 } 114 } 115 116 verbose -log "inferior_matched=$inferior_matched, gdb_matched=$gdb_matched" 117 gdb_assert {$inferior_matched && $gdb_matched} $command 118} 119 120 121if ![gdb_skip_stdio_test "print print_struct_rep(*struct1)"] { 122 print_struct_call "print_struct_rep(*struct1)" \ 123 ".*Contents of struct1:\[ \t\n\r\]+22\[ \t\]+0\[ \t\n\r\]+" \ 124 ".\[0-9\]+ = \\{value = 5, head = 0\\}" 125} 126 127if ![gdb_skip_stdio_test "print print_one_large_struct(...)"] { 128 print_struct_call "print_one_large_struct(*list1)" \ 129 ".*\[ \t\]+4\[ \t\]+1\[ \r\n\]+" \ 130 ".\[0-9\]+ = \\{next_index = \\{1, 2, 3, 4, 5, 6, 7, 8, 9, 10\\}, values = \\{4, 6, 8, 10, 12, 14, 16, 18, 20, 22\\}, head = 0\\}" 131} 132 133if {!$skip_float_test && \ 134 ![gdb_skip_stdio_test "print print_one_double(*d1)"] } { 135 print_struct_call "print_one_double(*d1)" \ 136 ".*Contents of one_double_t:\[ \r\n\]+1\\.111110\[ \r\n\]+" \ 137 ".\[0-9\]+ = \\{double1 = 1\\.111\[0-9\]*\\}" 138} 139 140if {!$skip_float_test && \ 141 ![gdb_skip_stdio_test "print print_two_floats(*f3)"] } { 142 print_struct_call "print_two_floats(*f3)" \ 143 ".*Contents of two_floats_t:\[ \r\n\]+-2\\.345000\[ \t]+1\\.000000\[ \r\n\]+" \ 144 ".\[0-9\]+ = \\{float1 = -2\\.34500003, float2 = 1\\}" 145} 146 147if ![gdb_skip_stdio_test "print print_bit_flags_char(*cflags)"] { 148 print_struct_call "print_bit_flags_char(*cflags)" \ 149 ".*alpha\[ \r\n\]+gamma\[ \r\n\]+epsilon\[ \r\n\]+" \ 150 ".\[0-9\]+ = \\{alpha = 1 '\\\\001', beta = 0 '\\\\000', gamma = 1 '\\\\001', delta = 0 '\\\\000', epsilon = 1 '\\\\001', omega = 0 '\\\\000'\\}" 151} 152 153if ![gdb_skip_stdio_test "print print_bit_flags_short(*sflags)"] { 154 print_struct_call "print_bit_flags_short(*sflags)" \ 155 ".*alpha\[ \r\n\]+gamma\[ \r\n\]+epsilon\[ \r\n\]+" \ 156 ".\[0-9\]+ = \\{alpha = 1, beta = 0, gamma = 1, delta = 0, epsilon = 1, omega = 0\\}" 157} 158 159if ![gdb_skip_stdio_test "print print_bit_flags(*flags)"] { 160 print_struct_call "print_bit_flags(*flags)" \ 161 ".*alpha\[ \r\n\]+gamma\[ \r\n\]+epsilon\[ \r\n\]+" \ 162 ".\[0-9\]+ = \\{alpha = 1, beta = 0, gamma = 1, delta = 0, epsilon = 1, omega = 0\\}" 163} 164 165if ![gdb_skip_stdio_test "print print_bit_flags_combo(*flags_combo)"] { 166 print_struct_call "print_bit_flags_combo(*flags_combo)" \ 167 ".*alpha\[ \r\n\]+gamma\[ \r\n\]+epsilon\[ \r\n\]+ch1: y\[ \t\]+ch2: n\[ \r\n\]+" \ 168 ".\[0-9\]+ = \\{alpha = 1, beta = 0, ch1 = 121 'y', gamma = 1, delta = 0, ch2 = 110 'n', epsilon = 1, omega = 0\\}" 169} 170 171if ![gdb_skip_stdio_test "print print_three_chars(*three_chars)"] { 172 print_struct_call "print_three_chars(*three_char)" \ 173 ".*Contents of three_char_t:\[ \r\n\]+x\[ \t\]+y\[ \t\]+z\[ \r\n\]+" \ 174 ".\[0-9\]+ = \\{ch1 = 120 'x', ch2 = 121 'y', ch3 = 122 'z'\\}" 175} 176 177if ![gdb_skip_stdio_test "print print_five_chars(*five_chars)"] { 178 print_struct_call "print_five_chars(*five_char)" \ 179 ".*Contents of five_char_t:\[ \r\n\]+h\[ \t\]+e\[ \t\]+l\[ \t\]+l\[ \t\]+o\[ \r\n\]+" \ 180 ".\[0-9\]+ = \\{ch1 = 104 'h', ch2 = 101 'e', ch3 = 108 'l', ch4 = 108 'l', ch5 = 111 'o'\\}" 181} 182 183if ![gdb_skip_stdio_test "print print_int_char_combo(*int_char_combo)"] { 184 print_struct_call "print_int_char_combo(*int_char_combo)" \ 185 ".*Contents of int_char_combo_t:\[ \r\n\]+13\[ \t\]+!\[ \r\n\]+" \ 186 ".\[0-9\]+ = \\{int1 = 13, ch1 = 33 '!'\\}" 187} 188 189return 190