derek.holloway
7502bf64a4
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68 lines
1.9 KiB
Plaintext
68 lines
1.9 KiB
Plaintext
# Copyright 2022-2024 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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# This file is part of the gdb testsuite.
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# Test explicitly unwinding the PC DWARF register on aarch64
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require is_aarch64_target
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standard_testfile .S
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if { [prepare_for_testing "failed to prepare" $testfile $srcfile] } {
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return -1
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}
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if ![runto_main] {
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return -1
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}
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proc test_reg_vals {} {
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gdb_test "p \$pc - &main" "= 8" "p \$pc"
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gdb_test "p/x \$x30" "= 0x1234" "p \$x30"
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}
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proc test_unwind_pc { inst } {
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gdb_test "si" "$inst" "single step"
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gdb_test "backtrace" \
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".*#1.*in main ().*" \
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"backtrace"
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gdb_test "up" "in main ().*" "parent frame"
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test_reg_vals
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}
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# Ready to enter the function
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gdb_test "si" "bl test_func" "call site"
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# Step through the 3 instructions in the function to make sure that
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# we have the same unwind info throughout.
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with_test_prefix "1st stepi" {
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test_unwind_pc "mov x0, x30"
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}
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with_test_prefix "2nd stepi" {
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test_unwind_pc "mov x30, 0x1234"
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}
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with_test_prefix "3rd stepi" {
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test_unwind_pc "ret x0"
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}
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# Check again after we returned
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with_test_prefix "final" {
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# Check that we've stepped out (si prints out the new function name)
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gdb_test "si" ".*main *().*" "single step out"
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gdb_test "backtrace" \
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"#0\[\t \]+main ().*" \
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"backtrace"
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test_reg_vals
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}
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