forked from Imagelibrary/binutils-gdb
334d405c2a
Procedure step_until from test gdb.reverse/step-indirect-call-thunk.exp is moved to lib/gdb.exp and renamed repeat_cmd_until. The existing procedure gdb_step_until in lib/gdb.exp is simpler variant of the new repeat_cmd_until procedure. The existing procedure gdb_step_until is changed to just call the new repeat_cmd_until procedure with the command set to "step" and an optional CURRENT string. The default CURRENT string is set to "\}" to work with the existing uses of procedure gdb_step_until.
77 lines
2.9 KiB
Plaintext
77 lines
2.9 KiB
Plaintext
# Copyright 2018-2023 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 <http://www.gnu.org/licenses/>.
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require supports_reverse
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require {istarget "x86*"}
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standard_testfile
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set cflags {}
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lappend cflags debug
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lappend cflags additional_flags=-mindirect-branch=thunk
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lappend cflags additional_flags=-mfunction-return=thunk
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set fcf_protection_none additional_flags=-fcf-protection=none
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if { [gdb_can_simple_compile fcf-protection-none {int main () { return 0; }} \
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executable $fcf_protection_none] } {
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lappend cflags $fcf_protection_none
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}
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if { [prepare_for_testing "failed to prepare" $testfile $srcfile $cflags] } {
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return -1
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}
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if { ![runto_main] } {
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return -1
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}
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gdb_test_no_output "record"
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gdb_test "next" ".*" "record trace"
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# Normal stepping steps through all thunks.
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gdb_test "reverse-step" "apply\.3.*" "reverse-step into apply"
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gdb_test "reverse-step" "inc\.3.*" "reverse-step into inc"
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gdb_test "reverse-step" "inc\.2.*" "reverse-step inside inc"
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gdb_test "reverse-step" "apply\.2.*" \
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"reverse-step through call thunk into apply, first time"
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gdb_test "reverse-step" "main\.2.*" "reverse-step into main"
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gdb_test "step" "apply\.2.*" "step into apply"
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gdb_test "step" "inc\.2.*" "step through call thunk into inc"
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gdb_test "reverse-step" "apply\.2.*" \
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"reverse-step through call thunk into apply, second time"
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gdb_test "next" "apply\.3.*" "step through thunks and over inc"
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gdb_test "reverse-next" "apply\.2.*" \
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"reverse-step through thunks and over inc"
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# We can use instruction stepping to step into thunks.
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repeat_cmd_until "stepi" "apply\.2" "indirect_thunk" "stepi into call thunk"
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repeat_cmd_until "stepi" "indirect_thunk" "inc" \
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"stepi out of call thunk into inc"
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set alphanum_re "\[a-zA-Z0-9\]"
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set pic_thunk_re "__$alphanum_re*\\.get_pc_thunk\\.$alphanum_re* \\(\\)"
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repeat_cmd_until "stepi" "(inc|$pic_thunk_re)" "return_thunk" "stepi into return thunk"
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repeat_cmd_until "stepi" "return_thunk" "apply" \
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"stepi out of return thunk back into apply"
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repeat_cmd_until "reverse-stepi" "apply" "return_thunk" \
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"reverse-stepi into return thunk"
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repeat_cmd_until "reverse-stepi" "return_thunk" "inc" \
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"reverse-stepi out of return thunk into inc"
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repeat_cmd_until "reverse-stepi" "(inc|$pic_thunk_re)" "indirect_thunk" \
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"reverse-stepi into call thunk"
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repeat_cmd_until "reverse-stepi" "indirect_thunk" "apply" \
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"reverse-stepi out of call thunk into apply"
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