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jeremybenn |
# Copyright 2007, 2008 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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# Please email any bugs, comments, and/or additions to this file to:
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# bug-gdb@gnu.org
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# This file is part of the gdb testsuite.
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# Unwinding of DW_CFA_GNU_negative_offset_extended test program.
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if $tracelevel {
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strace $tracelevel
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}
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# Test i386 unwinder.
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set prms_id 0
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set bug_id 0
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if ![istarget "i?86-*-*"] then {
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verbose "Skipping i386 unwinder tests."
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return
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}
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set testfile "i386-gnu-cfi"
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set srcfilec ${testfile}.c
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set srcfileasm ${testfile}-asm.S
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set binfile ${objdir}/${subdir}/${testfile}
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# some targets have leading underscores on assembly symbols.
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# TODO: detect this automatically
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set additional_flags ""
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if [istarget "i?86-*-cygwin*"] then {
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set additional_flags "additional_flags=-DSYMBOL_PREFIX=\"_\""
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}
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if { [gdb_compile "${srcdir}/${subdir}/${srcfilec} ${srcdir}/${subdir}/${srcfileasm}" "${binfile}" executable [list debug $additional_flags]] != "" } {
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untested i386-gnu-cfi.exp
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return -1
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}
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# Get things started.
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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 ${binfile}
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# We should stop in abort(3).
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gdb_run_cmd
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gdb_test_multiple {} "continue to abort()" {
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-re ".*Program received signal SIGABRT,.*$gdb_prompt $" {
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pass "continue to abort()"
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}
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}
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# Backtrace would crash before.
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gdb_test "bt" \
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"main \\(\\) at .*${testfile}.c.*" \
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"backtrace"
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# Check we see the inserted `DW_CFA_GNU_negative_offset_extended' CFI.
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# We see there the original CFI-stored filename `gate.c'.
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gdb_test "up 3" \
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"gate \\(\[^()\]*\\) at .*gate.c.*" \
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"shift up to the modified frame"
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gdb_test_multiple "info frame" "Existence of the CFI inserted register" {
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-re "Stack level 3, frame at (0x\[0-9a-f\]+):.*Saved registers:.* ecx at (0x\[0-9a-f\]+),.*" {
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pass "Existence of the CFI inserted register"
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if { [string compare $expect_out(1,string) $expect_out(2,string)] } then {
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fail "Value of the CFI inserted register"
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} else {
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pass "Value of the CFI inserted register"
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}
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}
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}
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