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.
108 lines
3.0 KiB
Plaintext
108 lines
3.0 KiB
Plaintext
# Copyright 2022-2024 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 patching executables and core files, with "set write on".
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standard_testfile
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if {[build_executable "failed to prepare" $testfile $srcfile debug]} {
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return -1
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}
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# Check that we can patch an executable.
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with_test_prefix "exec" {
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clean_restart
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gdb_test_no_output "set write on"
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gdb_load $binfile
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gdb_test "p extern_global" " = 1" "read original value"
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gdb_test "p extern_global = 2" " = 2" "modify value"
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gdb_test "p extern_global" " = 2" "value modified"
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clean_restart $binfile
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gdb_test "p extern_global" " = 2" "value modified persisted"
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}
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# Check that we can patch a core file.
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# Generate a core file.
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with_test_prefix "gcore" {
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clean_restart $binfile
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if {![runto_main]} {
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return
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}
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# Extract the value at PC, and add 1, letting it wrap if
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# necessary. This is the value we will poke into memory.
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set poke_value ""
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gdb_test_multiple "p/x (*(unsigned char *) \$pc) + 1" "compute poke value" {
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-re -wrap " = ($hex)" {
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set poke_value $expect_out(1,string)
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pass $gdb_test_name
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}
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}
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if {$poke_value == ""} {
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return
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}
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set corefile [standard_output_file gcore.test]
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set core_supported [gdb_gcore_cmd "$corefile" "save a corefile"]
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if {!$core_supported} {
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return
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}
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}
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# Load it into GDB with "set write on", and change the instruction at
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# PC.
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with_test_prefix "load core, write on" {
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# Don't load a binary, we want to make sure we're patching the
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# core, not the executable.
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clean_restart
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gdb_test_no_output "set write on"
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set core_loaded [gdb_core_cmd "$corefile" "re-load generated corefile"]
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if { $core_loaded == -1 } {
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return
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}
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gdb_test "p/x *(unsigned char *) \$pc = $poke_value" \
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" = $poke_value" \
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"poke value"
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gdb_test "p/x *(unsigned char *) \$pc" \
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" = $poke_value" \
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"value modified"
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}
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# Re-load it into a new GDB session, now with "set write off", and
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# confirm the value change persisted.
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with_test_prefix "re-load modified core" {
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# Don't load a binary, we want to make sure we've patched the
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# core, not the executable.
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clean_restart
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set core_loaded [gdb_core_cmd "$corefile" "re-load generated corefile"]
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gdb_assert { $core_loaded != -1 } "core re-loaded"
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gdb_test "p/x *(unsigned char *) \$pc" \
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" = $poke_value" \
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"value modified persisted"
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}
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