# Copyright 2007 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 2 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, write to the Free Software # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. # The shared cache in Leopard means that we have to deal with the # library slides differently between libraries in & out of the shared cache. # This file just tests that we can read the errno variable correctly. # Since libSystem is pretty surely going to be in the shared cache, # this is a good sniff test that we are getting the data sections of # libraries in the shared cache correctly. if $tracelevel then { strace $tracelevel } # # test running programs # set prms_id 0 set bug_id 0 set testfile "check-errno" set srcfile ${testfile}.c set binfile ${objdir}/${subdir}/${testfile} global srcdir objdir subdir gdb_prompt srcfile testfile binfile hex if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug} ] != "" } { gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail." } # Start with a fresh gdb gdb_exit gdb_start gdb_reinitialize_dir $srcdir/$subdir gdb_file_cmd "${binfile}" send_gdb "set width 0\n" gdb_expect -re "$gdb_prompt $" send_gdb "set locate-dsym 0\n" gdb_expect -re "$gdb_prompt $" gdb_test "break [gdb_get_line_number "Good place to break first"]" "Breakpoint 1 at $hex: file.*, line.*\\." \ "Set breakpoint on line 'Good place to break first'" gdb_test "break [gdb_get_line_number "Good place to break second"]" "Breakpoint 2 at $hex: file.*, line.*\\." \ "Set breakpoint on line 'Good place to break second'" gdb_test "run" "Starting program: $binfile *\r\n\Reading symbols for shared libraries \(\[.+\]\)+ done.*Breakpoint 1, main.*" \ "run to first breakpoint in main()" send_gdb "print \(int\) errno\n" gdb_expect { -re {\$[0-9]+ = ([-]?[0-9]+)} { set errno_first $expect_out(1,string) if {$errno_first == 0} { pass "errno should be 0 after we set it to 0" } else { fail "errno should be 0 after we set it to 0 - probably not getting shared cache correctly" } } -re "$gdb_prompt $" { fail "could not print errno after we set it" } timeout {fail "(timeout) printing errno after we set it"} } gdb_test "continue" {Continuing\.(\r\n)+Breakpoint 2, main.*} "continue to second breakpoint in main." gdb_test {print result} {\$[0-9]+ = -1} "result of stat should be -1" send_gdb "print \(unsigned int\) errno\n" gdb_expect { -re {\$[0-9]+ = ([-]?[0-9]+)} { set errno_second $expect_out(1,string) if {$errno_first != $errno_second && $errno_second != 0} { pass "errno should have changed after the stat call" } else { fail "errno should have changed after the stat call" } } -re "$gdb_prompt $" { fail "could not print errno after the stat call" } timeout {fail "(timeout) printing errno after the stat call"} } gdb_exit