forked from Imagelibrary/binutils-gdb
213516ef31
This commit is the result of running the gdb/copyright.py script, which automated the update of the copyright year range for all source files managed by the GDB project to be updated to include year 2023.
136 lines
3.7 KiB
Plaintext
136 lines
3.7 KiB
Plaintext
# Copyright 2014-2023 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 that when following an exec, we don't try to insert breakpoints
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# in the new image at the addresses the symbols had before the exec.
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standard_testfile
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# Build two copies of the program, each linked at a different address.
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# The address of "main" in the first binary should end up being an
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# unmapped address in the second binary.
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set objfile ${binfile}.o
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set exec1 ${binfile}1
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set exec2 ${binfile}2
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if { [gdb_compile [file join $srcdir $subdir $srcfile] $objfile \
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object [list debug]] != "" } {
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untested "failed to compile"
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return -1
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}
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if { [gdb_compile $objfile $exec1 executable {debug text_segment=0x1000000}] != ""
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|| [gdb_compile $objfile $exec2 executable {debug text_segment=0x2000000}] != ""} {
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untested "link failed"
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return -1
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}
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# First check whether the address of "main" in exec1 is readable in
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# exec2. If it is, then skip the test as unsupported.
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clean_restart ${exec1}
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if {![runto_main]} {
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return -1
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}
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set addr ""
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set test "main address first"
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gdb_test_multiple "p/x &main" $test {
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-re " = (0x\[0-9a-f\]+)\r\n$gdb_prompt $" {
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set addr $expect_out(1,string)
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pass $test
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}
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}
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clean_restart ${exec2}
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if {![runto_main]} {
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return -1
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}
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set cannot_access 0
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set test "probe memory access"
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gdb_test_multiple "x $addr" $test {
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-re "Cannot access memory at address .*$gdb_prompt $" {
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set cannot_access 1
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pass $test
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}
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-re ".*$gdb_prompt $" {
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pass $test
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}
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}
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if {!$cannot_access} {
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unsupported "main address is readable in second binary"
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return
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}
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# The test proper. ALWAYS_INSERTED indicates whether testing in
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# "breakpoint always-inserted" mode.
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proc test { always_inserted } {
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global exec1
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global gdb_prompt
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clean_restart ${exec1}
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gdb_test_no_output "set breakpoint always-inserted $always_inserted"
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if {![runto_main]} {
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return -1
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}
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# Set a second breakpoint (whose original address also ends up
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# unmmapped after the exec), for PR 19548.
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gdb_test "break some_function" "Breakpoint .*"
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# PR17431: with always-inserted on, we'd see:
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# (gdb) continue
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# Continuing.
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# Warning:
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# Cannot insert breakpoint 1.
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# Cannot access memory at address 0x10000ff
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# PR 19548: with more than one breakpoint, we'd see:
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# (gdb) continue
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# Continuing.
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# process (...) is executing new program: (...)/execl-update-breakpoints2
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# Error in re-setting breakpoint 1: Warning:
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# Cannot insert breakpoint 2.
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# Cannot access memory at address 0x1000764
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set not_nl "\[^\r\n\]*"
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set regex ""
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append regex \
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"^continue\r\n" \
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"Continuing\\.\r\n" \
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"${not_nl} is executing new program: ${not_nl}\r\n" \
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"(Reading ${not_nl} from remote target\\.\\.\\.\r\n)*" \
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"(?:.Thread debugging using .*? enabled.\r\nUsing .*? library .*?\\.\r\n)?" \
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"\r\n" \
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"Breakpoint 1, main.*$gdb_prompt $"
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set message "continue across exec"
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gdb_test_multiple "continue" $message {
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-re $regex {
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pass $message
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}
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}
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}
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foreach always_inserted { "off" "on" } {
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with_test_prefix "always-inserted $always_inserted" {
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test $always_inserted
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}
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}
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