forked from Imagelibrary/binutils-gdb
213516ef31
This commit is the result of running the gdb/copyright.py script, which automated the update of the copyright year range for all source files managed by the GDB project to be updated to include year 2023.
84 lines
2.7 KiB
Plaintext
84 lines
2.7 KiB
Plaintext
# Copyright 2018-2023 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/>.
|
|
|
|
standard_testfile
|
|
|
|
if { ![istarget "x86*"] } {
|
|
return
|
|
}
|
|
|
|
set cflags "-mindirect-branch=thunk -mfunction-return=thunk"
|
|
|
|
if { [gcc_major_version] >= 8 } {
|
|
append cflags " -fcf-protection=none"
|
|
}
|
|
if { [prepare_for_testing "failed to prepare" $testfile $srcfile \
|
|
[list debug "additional_flags=$cflags"]] } {
|
|
return -1
|
|
}
|
|
|
|
if { ![runto_main] } {
|
|
return -1
|
|
}
|
|
|
|
# Do repeated instruction steps in order to reach TARGET from CURRENT
|
|
#
|
|
# CURRENT is a string matching the current location
|
|
# TARGET is a string matching the target location
|
|
# TEST is the test name
|
|
#
|
|
# The function issues repeated "stepi" commands as long as the location
|
|
# matches CURRENT up to a maximum of 100 steps.
|
|
#
|
|
# TEST passes if the resulting location matches TARGET and fails
|
|
# otherwise.
|
|
#
|
|
proc stepi_until { current target test } {
|
|
global gdb_prompt
|
|
|
|
set count 0
|
|
gdb_test_multiple "stepi" "$test" {
|
|
-re "$current.*$gdb_prompt $" {
|
|
incr count
|
|
if { $count < 100 } {
|
|
send_gdb "stepi\n"
|
|
exp_continue
|
|
} else {
|
|
fail "$test"
|
|
}
|
|
}
|
|
-re "$target.*$gdb_prompt $" {
|
|
pass "$test"
|
|
}
|
|
}
|
|
}
|
|
|
|
# Normal stepping steps through all thunks.
|
|
gdb_test "step" "thrice\.2.*" "step into thrice"
|
|
gdb_test "next" "thrice\.3.*" "step through thunks and over inc"
|
|
gdb_test "step" "inc\.2.*" "step through call thunk into inc"
|
|
gdb_test "step" "inc\.3.*" "step inside inc"
|
|
gdb_test "step" "thrice\.4.*" "step through return thunk back into thrice"
|
|
|
|
set alphanum_re "\[a-zA-Z0-9\]"
|
|
set pic_thunk_re "__$alphanum_re*\\.get_pc_thunk\\.$alphanum_re* \\(\\)"
|
|
|
|
# We can use instruction stepping to step into thunks.
|
|
stepi_until "thrice" "indirect_thunk" "stepi into call thunk"
|
|
stepi_until "indirect_thunk" "inc." "stepi out of call thunk into inc"
|
|
stepi_until "(inc|$pic_thunk_re)" "return_thunk" "stepi into return thunk"
|
|
stepi_until "return_thunk" "thrice" \
|
|
"stepi out of return thunk back into thrice"
|