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jeremybenn |
# Copyright (C) 2008, 2009, 2010 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 .
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# This file is part of the gdb testsuite.
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if $tracelevel {
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strace $tracelevel
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}
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# Test stepping over permanent breakpoints on i386.
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if ![istarget "i?86-*-*"] then {
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verbose "Skipping skip over permanent breakpoint on i386 tests."
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return
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}
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set testfile "i386-prologue"
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set srcfile ${testfile}.c
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set binfile ${objdir}/${subdir}/${testfile}
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# some targets have leading underscores on assembly symbols.
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# TODO: detect this automatically
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set additional_flags ""
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if [istarget "i?86-*-cygwin*"] then {
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set additional_flags "additional_flags=-DSYMBOL_PREFIX=\"_\""
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}
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# Don't use "debug", so that we don't have line information for the assembly
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# fragments.
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if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable [list $additional_flags]] != "" } {
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untested i386-prologue.exp
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return -1
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}
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gdb_exit
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gdb_start
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gdb_reinitialize_dir $srcdir/$subdir
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gdb_load ${binfile}
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#
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# Run to `main' where we begin our tests.
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#
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if ![runto_main] then {
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return -1
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}
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set function standard
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set retcode [gdb_test_multiple "disassemble $function" "Disassemble function '$function'" {
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-re ".*($hex) <\\+0>.*($hex) <\\+4>.*($hex) <\\+5>.*($hex) <\\+6>.*$gdb_prompt $" {
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set function_start $expect_out(1,string);
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set address $expect_out(2,string);
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set address1 $expect_out(3,string);
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set address2 $expect_out(4,string);
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}
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}]
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if {$retcode != 0} {
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fail "Disassemble failed, skipping entire test."
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return -1
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}
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gdb_breakpoint "*$function_start"
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gdb_breakpoint "*$address"
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gdb_test "continue" "Breakpoint .*, $function_start in $function.*" \
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"Stop at the '$function' start breakpoint (fetching esp)."
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# We want to fetch esp at the start of '$function' function to make sure
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# skip_permanent_breakpoint implementation really skips only the perm.
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# breakpoint. If, for whatever reason, 'leave' instruction doesn't get
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# executed, esp will not have this value.
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set start_esp 0
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gdb_test_multiple "print \$esp" "Fetch esp value." {
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-re "\\\$1.*($hex).*$gdb_prompt $" {
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set start_esp $expect_out(1,string);
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}
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}
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gdb_test "continue" "Breakpoint .*, $address in $function.*" \
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"Stop at permanent breakpoint."
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gdb_test "stepi" "$address1|$address2 in $function.*" \
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"Single stepping past permanent breakpoint."
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gdb_test "print \$esp" ".*$start_esp.*" \
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"ESP value does not match - step_permanent_breakpoint wrong."
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