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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.
24 lines
864 B
Ada
24 lines
864 B
Ada
-- 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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with System;
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procedure Callee is
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Data : Integer;
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for Data'Address use System'To_Address (16#4000_0000#);
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begin
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Data := 0; -- BREAK
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end Callee;
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