forked from Imagelibrary/binutils-gdb
c40cc657bc
When trying to evaluate an expression which adds a pointer and
an integral, the evaluation succeeds if the pointer is on
the left handside of the operator, but not when it is on the right
handside:
(gdb) p something'address + 0
$1 = (system.address) 0x613418 <pck.something>
(gdb) p 0 + something'address
Argument to arithmetic operation not a number or boolean.
Same issue when doing subtractions:
(gdb) p something'address - 0
$2 = (system.address) 0x613418 <pck.something>
(gdb) p 0 - something'address
Argument to arithmetic operation not a number or boolean.
This patch enhances the Ada expression evaluator to handle
these two situations.
gdb/ChangeLog:
* ada-lang.c (ada_evaluate_subexp) <BINOP_ADD>: Add handling
of the case where the second operand is a pointer.
<BINOP_SUB>: Likewise.
gdb/testsuite/ChangeLog:
* gdb.ada/addr_arith: New testcase.
Tested on x86_64-linux.
43 lines
1.4 KiB
Plaintext
43 lines
1.4 KiB
Plaintext
# Copyright 2014 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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standard_ada_testfile foo_na07_019
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if {[gdb_compile_ada "${srcfile}" "${binfile}" executable [list debug ]] != "" } {
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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 "START" ${testdir}/foo_na07_019.adb]
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if ![runto "foo_na07_019.adb:$bp_location" ] then {
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perror "Couldn't run ${testfile}"
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return
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}
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gdb_test "print something'address + 0" \
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"\\(system\\.address\\) $hex <pck\\.something>"
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gdb_test "print 0 + something'address" \
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"\\(system\\.address\\) $hex <pck\\.something>"
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gdb_test "print something'address - 0" \
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"\\(system\\.address\\) $hex <pck\\.something>"
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gdb_test "print 0 - something'address" \
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"\\(system\\.address\\) $hex.*"
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