forked from Imagelibrary/binutils-gdb
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.
95 lines
3.0 KiB
Plaintext
95 lines
3.0 KiB
Plaintext
# Copyright 2021-2024 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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# Check that GDB does not do excess accesses to the inferior memory
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# when fetching elements from an array in the C language.
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standard_testfile
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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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# Load 'global_foo' into a history variable.
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gdb_test "p global_foo" "\\{f = 1, array = \\{1, 2, 3, 4, 5\\}\\}"
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gdb_test_no_output "set debug target 1"
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# Now print an array element from within 'global_foo', but accessed
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# via the history element. The history element should be non-lazy,
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# and so there should be no reason for GDB to fetch the array element
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# from the inferior memory, we should be able to grab the contents
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# directory from the history value.
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#
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# To check this we 'set debug target 1' (above), and then look for any
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# xfer_partial calls; there shouldn't be any.
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set saw_memory_access false
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set saw_auxv_parse false
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gdb_test_multiple "p \$.array\[1\]" "" {
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-re "^p \\\$\\.array\\\[1\\\]\r\n" {
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exp_continue
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}
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-re "^->\[^\r\n\]+xfer_partial\[^\r\n\]+\r\n" {
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set saw_memory_access true
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exp_continue
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}
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-re "^->\[^\r\n\]+auxv_parse\[^\r\n\]+\r\n" {
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set saw_auxv_parse true
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exp_continue
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}
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-re "^->\[^\r\n\]+\r\n" {
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exp_continue
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}
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-re "^<-\[^\r\n\]+\r\n" {
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exp_continue
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}
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-re "^\[^\$\]\[^\r\n\]+\r\n" {
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exp_continue
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}
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-re "^\\\$${decimal} = 2\r\n$gdb_prompt " {
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if { $saw_memory_access } {
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if { $saw_auxv_parse } {
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# The expression parser may look up global symbols, which
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# may require reading AUXV in order to determine the debug
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# base for SVR4 linker namespaces.
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xfail "$gdb_test_name"
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} else {
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fail "$gdb_test_name"
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}
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} else {
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pass "$gdb_test_name"
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}
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}
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}
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gdb_test "set debug target 0" ".*"
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if { [allow_python_tests] } {
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gdb_test_no_output "python val = gdb.parse_and_eval('global_foo')"
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gdb_test "python print('val = %s' % val)" "val = \\{f = 1, array = \\{1, 2, 3, 4, 5\\}\\}"
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gdb_test "python print('val.is_lazy = %s' % val.is_lazy)" "val\\.is_lazy = False"
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# Grab an element from the array within VAL. The element should
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# immediately be non-lazy as the value contents can be copied
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# directly from VAL.
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gdb_test_no_output "python elem = val\['array'\]\[1\]"
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gdb_test "python print('elem.is_lazy = %s' % elem.is_lazy)" "elem\\.is_lazy = False"
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gdb_test "python print('elem = %s' % elem)" "elem = 2"
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}
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