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