1d506c26d9
This commit is the result of the following actions:
- Running gdb/copyright.py to update all of the copyright headers to
include 2024,
- Manually updating a few files the copyright.py script told me to
update, these files had copyright headers embedded within the
file,
- Regenerating gdbsupport/Makefile.in to refresh it's copyright
date,
- Using grep to find other files that still mentioned 2023. If
these files were updated last year from 2022 to 2023 then I've
updated them this year to 2024.
I'm sure I've probably missed some dates. Feel free to fix them up as
you spot them.
91 lines
3.6 KiB
Text
91 lines
3.6 KiB
Text
# Copyright 2020-2024 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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# Test getting the range of flexible array members in Python.
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standard_testfile
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require allow_python_tests
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if { [prepare_for_testing "failed to prepare" \
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${testfile} ${srcfile}] } {
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return
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}
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if { ![runto break_here] } {
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untested "could not run to break_here"
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return
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}
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# The various cases are:
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#
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# - ns: flexible array member with no size
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# - zs: flexible array member with size 0 (GNU C extension that predates the
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# standardization of the feature, but widely supported)
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# - zso: zero-size only, a corner case where the array is the sole member of
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# the structure
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gdb_test "python ns = gdb.parse_and_eval('ns').dereference()"
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gdb_test "python zs = gdb.parse_and_eval('zs').dereference()"
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gdb_test "python zso = gdb.parse_and_eval('zso').dereference()"
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# Print the whole structure.
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gdb_test "python print(ns)" "{n = 3, items = $hex}"
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gdb_test "python print(zs)" "{n = 3, items = $hex}"
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gdb_test "python print(zso)" "{items = $hex}"
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# Print all items.
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gdb_test "python print(ns\['items'\])" "$hex"
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gdb_test "python print(ns\['items'\]\[0\])" "101"
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gdb_test "python print(ns\['items'\]\[1\])" "102"
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gdb_test "python print(ns\['items'\]\[2\])" "103"
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gdb_test "python print(zs\['items'\])" "$hex"
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gdb_test "python print(zs\['items'\]\[0\])" "201"
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gdb_test "python print(zs\['items'\]\[1\])" "202"
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gdb_test "python print(zs\['items'\]\[2\])" "203"
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gdb_test "python print(zso\['items'\])" "$hex"
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gdb_test "python print(zso\['items'\]\[0\])" "301"
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gdb_test "python print(zso\['items'\]\[1\])" "302"
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gdb_test "python print(zso\['items'\]\[2\])" "303"
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# Check taking the address of array elements (how PR 28675 was originally
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# reported).
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gdb_test "python print(ns\['items'\] == ns\['items'\]\[0\].address)" "True"
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gdb_test "python print(ns\['items'\]\[0\].address + 1 == ns\['items'\]\[1\].address)" "True"
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gdb_test "python print(zs\['items'\] == zs\['items'\]\[0\].address)" "True"
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gdb_test "python print(zs\['items'\]\[0\].address + 1 == zs\['items'\]\[1\].address)" "True"
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gdb_test "python print(zso\['items'\] == zso\['items'\]\[0\].address)" "True"
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gdb_test "python print(zso\['items'\]\[0\].address + 1 == zso\['items'\]\[1\].address)" "True"
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# Verify the range attribute. It looks a bit inconsistent that the high bound
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# is sometimes 0, sometimes -1. It depends on the way the flexible array
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# member is specified and on the compiler version (the debug info is
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# different). But that's what GDB produces today, so that's what we test.
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gdb_test "python print(ns\['items'\].type.range())" "\\(0, 0\\)"
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gdb_test "python print(zs\['items'\].type.range())" "\\(0, (0|-1)\\)"
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gdb_test "python print(zso\['items'\].type.range())" "\\(0, (0|-1)\\)"
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# Test the same thing, but going explicitly through the array index's range
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# type.
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gdb_test "python print(ns\['items'\].type.fields()\[0\].type.range())" "\\(0, 0\\)"
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gdb_test "python print(zs\['items'\].type.fields()\[0\].type.range())" "\\(0, (0|-1)\\)"
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gdb_test "python print(zso\['items'\].type.fields()\[0\].type.range())" "\\(0, (0|-1)\\)"
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