222 lines
6.6 KiB
Plaintext
222 lines
6.6 KiB
Plaintext
# Copyright 1997, 1998, 1999, 2000 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. */
|
|
|
|
# Please email any bugs, comments, and/or additions to this file to:
|
|
# bug-gdb@prep.ai.mit.edu
|
|
|
|
# use this to debug:
|
|
#
|
|
#log_user 1
|
|
|
|
# step-test.exp -- Expect script to test stepping in gdb
|
|
|
|
if $tracelevel then {
|
|
strace $tracelevel
|
|
}
|
|
|
|
set testfile step-test
|
|
set srcfile ${srcdir}/${subdir}/${testfile}.c
|
|
set binfile ${objdir}/${subdir}/${testfile}
|
|
|
|
remote_exec build "rm -f ${binfile}"
|
|
if { [gdb_compile "${srcfile}" "${binfile}" executable {debug}] != "" } {
|
|
gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
|
|
}
|
|
|
|
gdb_exit
|
|
gdb_start
|
|
gdb_reinitialize_dir $srcdir/$subdir
|
|
gdb_load ${binfile}
|
|
|
|
if ![runto_main] then {
|
|
fail "Can't run to main"
|
|
return 0
|
|
}
|
|
|
|
# Set a breakpoint at line 45, if stepi then finish fails, we would
|
|
# run to the end of the program, which would mess up the rest of the tests.
|
|
|
|
# Vanilla step/next
|
|
#
|
|
gdb_test "next" ".*${decimal}.*x = 1;.*" "next 1"
|
|
gdb_test "step" ".*${decimal}.*y = 2;.*" "step 1"
|
|
|
|
# With count
|
|
#
|
|
gdb_test "next 2" ".*${decimal}.*w = w.*2;.*" "next 2"
|
|
gdb_test "step 3" ".*${decimal}.*z = z.*5;.*" "step 3"
|
|
gdb_test "next" ".*${decimal}.*callee.*OVER.*" "next 3"
|
|
|
|
# Step over call
|
|
#
|
|
gdb_test "next" ".*${decimal}.*callee.*INTO.*" "next over"
|
|
|
|
# Step into call
|
|
#
|
|
gdb_test "step" ".*${decimal}.*myglob.*" "step into"
|
|
|
|
# Step out of call
|
|
#
|
|
# I wonder if this is really portable. Are there any caller-saves
|
|
# platforms, on which `finish' will return you to some kind of pop
|
|
# instruction, which is attributed to the line containing the function
|
|
# call?
|
|
|
|
# On PA64, we end up at a different instruction than PA32.
|
|
# On IA-64, we also end up on callee instead of on the next line due
|
|
# to the restoration of the global pointer (which is a caller-save).
|
|
if { [istarget "hppa2.0w-hp-hpux*"] || [istarget "ia64-*-*"]} {
|
|
send_gdb "finish\n"
|
|
gdb_expect {
|
|
-re ".*${decimal}.*a.*5.*= a.*3.*$gdb_prompt $" { pass "step out 1" }
|
|
-re ".*${decimal}.*callee.*INTO.*$gdb_prompt $" { pass "step out 2" }
|
|
timeout { fail "step out" }
|
|
}
|
|
} else {
|
|
gdb_test "finish" ".*${decimal}.*a.*5.*= a.*3.*" "step out"
|
|
}
|
|
|
|
### Testing nexti and stepi.
|
|
###
|
|
### test_i NAME COMMAND HERE THERE
|
|
###
|
|
### Send COMMAND to gdb over and over, while the output matches the
|
|
### regexp HERE, followed by the gdb prompt. Pass if the output
|
|
### eventually matches the regexp THERE, followed by the gdb prompt;
|
|
### fail if we have to iterate more than a hundred times, we time out
|
|
### talking to gdb, or we get output which is neither HERE nor THERE. :)
|
|
###
|
|
### Use NAME as the name of the test.
|
|
###
|
|
### The exact regexps used are "$HERE.*$gdb_prompt $"
|
|
### and "$THERE.*$gdb_prompt $"
|
|
###
|
|
proc test_i {name command here there} {
|
|
global gdb_prompt
|
|
|
|
set i 0
|
|
while 1 {
|
|
send_gdb "${command}\n"
|
|
gdb_expect {
|
|
-re "$here.*$gdb_prompt $" {
|
|
# Okay, we're still on the same line. Just step again.
|
|
}
|
|
-re "$there.*$gdb_prompt $" {
|
|
# We've reached the next line. Rah.
|
|
pass "$name"
|
|
return
|
|
}
|
|
-re "$gdb_prompt $" {
|
|
# We got something else. Fail.
|
|
fail "$name"
|
|
return
|
|
}
|
|
timeout {
|
|
fail "$name (timeout)"
|
|
return
|
|
}
|
|
}
|
|
|
|
# Have we gone for too many steps without seeing any progress?
|
|
if {[incr i] >= 100} {
|
|
fail "$name (no progress after 100 steps)"
|
|
return
|
|
}
|
|
}
|
|
}
|
|
|
|
test_i "stepi to next line" "stepi" \
|
|
".*${decimal}.*a.*5.* = a.*3" \
|
|
".*${decimal}.*callee.*STEPI"
|
|
test_i "stepi into function" "stepi" \
|
|
".*${decimal}.*callee.*STEPI" \
|
|
".*callee \\(\\) at .*step-test\\.c"
|
|
|
|
# Continue to step until we reach the function's body. This makes it
|
|
# more likely that we've actually completed the prologue, so "finish"
|
|
# will work.
|
|
test_i "stepi into function's first source line" "stepi" \
|
|
".*${decimal}.*int callee" \
|
|
".*${decimal}.*myglob.*; return 0;"
|
|
|
|
# Have to be careful here, if the finish does not work,
|
|
# then we may run to the end of the program, which
|
|
# will cause erroneous failures in the rest of the tests
|
|
send_gdb "finish\n"
|
|
gdb_expect {
|
|
-re ".*(Program received|Program exited).*$gdb_prompt $" {
|
|
# Oops... We ran to the end of the program... Better reset
|
|
if {![runto_main]} then {
|
|
fail "Can't run to main"
|
|
return 0
|
|
}
|
|
if {![runto step-test.c:45]} {
|
|
fail "Can't run to line 45"
|
|
return 0
|
|
}
|
|
fail "stepi: finish call"
|
|
}
|
|
-re ".*${decimal}.*callee.*NEXTI.*$gdb_prompt $" {
|
|
pass "stepi: finish call"
|
|
}
|
|
-re ".*${decimal}.*callee.*STEPI.*$gdb_prompt $" {
|
|
# On PA64, we end up at a different instruction than PA32.
|
|
# On IA-64, we end up on callee instead of on the following line due
|
|
# to the restoration of the global pointer.
|
|
if { [istarget "hppa2.0w-hp-hpux*"] || [istarget "ia64-*-*"] } {
|
|
pass "stepi: finish call 2"
|
|
} else {
|
|
fail "stepi: finish call 2"
|
|
return
|
|
}
|
|
}
|
|
-re "$gdb_prompt $" {
|
|
# We got something else. Fail.
|
|
fail "stepi: finish call"
|
|
return
|
|
}
|
|
timeout {
|
|
fail "stepi: finish call (timeout)"
|
|
return
|
|
}
|
|
}
|
|
|
|
test_i "nexti over function" "nexti" \
|
|
".*${decimal}.*callee.*NEXTI" \
|
|
".*${decimal}.*y = w \\+ z;"
|
|
|
|
# On some platforms, if we try to step into a function call that
|
|
# passes a large structure by value, then we actually end up stepping
|
|
# into memcpy, bcopy, or some such --- GCC emits the call to pass the
|
|
# argument. Opinion is bitterly divided about whether this is the
|
|
# right behavior for GDB or not, but we'll catch it here, so folks
|
|
# won't forget about it.
|
|
|
|
gdb_test \
|
|
"break [gdb_get_line_number "step-test.exp: large struct by value"]" \
|
|
".*Breakpoint.* at .*" \
|
|
"set breakpoint at call to large_struct_by_value"
|
|
gdb_test "continue" \
|
|
".*Breakpoint ${decimal},.*large_struct_by_value.*" \
|
|
"run to pass large struct"
|
|
gdb_test "step" \
|
|
".*step-test.exp: arrive here 1.*" \
|
|
"large struct by value"
|
|
|
|
gdb_continue_to_end "step-test.exp"
|
|
|
|
return 0
|