forked from Imagelibrary/binutils-gdb
6d263fe46e
We found a case where --gc-sections can cause gdb to set an invalid breakpoint. In the included test case, gdb will set a breakpoint with two locations, one of which is 0x0. The code in lnp_state_machine::check_line_address is intended to filter out this sort of problem, but in this case, the entire CU is empty, causing unrelocated_lowpc==0x0 -- which circumvents the check. It seems to me that if a CU is empty like this, then it is ok to simply ignore the line table, as there won't be any locations anyway.
42 lines
1.3 KiB
Plaintext
42 lines
1.3 KiB
Plaintext
# Copyright 2022 Free Software Foundation, Inc.
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#
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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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load_lib "ada.exp"
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if { [skip_ada_tests] } { return -1 }
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standard_ada_testfile caller
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set options {
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debug
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optimize=-O2
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additional_flags=-ffunction-sections
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additional_flags=-largs
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additional_flags=-Wl,--gc-sections
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additional_flags=-margs
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additional_flags=-gnatn
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}
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if {[gdb_compile_ada "${srcfile}" "${binfile}" executable $options] != ""} {
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return -1
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}
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clean_restart ${testfile}
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set bp_location [gdb_get_line_number "BREAK" ${testdir}/callee.adb]
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# The bug here was that gdb would set a breakpoint with two locations,
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# one of them at 0x0.
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gdb_test "break callee.adb:$bp_location" \
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"Breakpoint $decimal at $hex: file .*callee.adb, line $bp_location."
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