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https://sourceware.org/git/binutils-gdb.git
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9704b8b4bc
It is not necessary to call get_compiler_info before calling test_compiler_info, and, after recent commits that removed setting up the gcc_compiled, true, and false globals from get_compiler_info, there is now no longer any need for any test script to call get_compiler_info directly. As a result every call to get_compiler_info outside of lib/gdb.exp is redundant, and this commit removes them all. There should be no change in what is tested after this commit.
116 lines
3.6 KiB
Plaintext
116 lines
3.6 KiB
Plaintext
# Copyright 2014-2022 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 trying to inserting a hw breakpoint in a shared library
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# when the target doesn't support hw breakpoints doesn't silently
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# error out without informing the user.
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if {[skip_shlib_tests]} {
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return -1
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}
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set main_src hbreak-in-shr-unsupported.c
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set lib_src hbreak-in-shr-unsupported-shr.c
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standard_testfile ${main_src} ${lib_src}
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set lib_basename hbreak-in-shr-unsupported-shr.so
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set lib_so [standard_output_file ${lib_basename}]
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set lib_opts "debug"
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set exec_opts [list debug shlib=${lib_so}]
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if { [gdb_compile_shlib ${srcdir}/${subdir}/${lib_src} ${lib_so} $lib_opts] != ""
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|| [gdb_compile ${srcdir}/${subdir}/${main_src} ${binfile} executable $exec_opts] != ""} {
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untested "failed to compile"
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return -1
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}
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clean_restart $binfile
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gdb_load_shlib $lib_so
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if ![runto_main] then {
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return -1
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}
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set is_target_remote [gdb_is_target_remote]
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# Get main breakpoint out of the way.
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delete_breakpoints
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# Easier to test if GDB inserts breakpoints immediately.
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gdb_test_no_output "set breakpoint always-inserted on"
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# Force-disable Z1 packets, in case the target actually supports
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# these.
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if {$is_target_remote} {
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gdb_test_no_output "set remote Z-packet off"
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}
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# Probe for hw breakpoints support. With Z packets disabled, this
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# should always fail with remote targets. For other targets, with no
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# way to force-disable hw breakpoints support, best we can do is skip
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# the remainder of the test if hardware breakpoint insertion in a
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# function in the main executable succeeds.
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set cant_insert_hbreak 0
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set supports_hbreak 0
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set test "probe hbreak support"
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gdb_test_multiple "hbreak -q main" $test {
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-re "No hardware breakpoint support in the target.*$gdb_prompt $" {
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pass $test
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}
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-re "Hardware breakpoints used exceeds limit.*$gdb_prompt $" {
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pass $test
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}
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-re "Cannot insert hardware breakpoint.*$gdb_prompt $" {
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set cant_insert_hbreak 1
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set supports_hbreak 1
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pass $test
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}
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-re "Hardware assisted breakpoint.*at.* file .*$srcfile, line.*$gdb_prompt $" {
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set supports_hbreak 1
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if {$is_target_remote} {
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# Z-packets have been force-disabled, so this shouldn't
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# happen.
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fail $test
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} else {
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pass $test
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}
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}
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}
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if {!$supports_hbreak} {
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unsupported "no hbreak support"
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return
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}
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if {!$cant_insert_hbreak} {
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unsupported "can't disable hw breakpoint support"
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return
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}
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# Get previous hw breakpoint out of the way.
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delete_breakpoints
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# Without target support, this should always complain. GDB used to
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# suppress the error if the breakpoint was set in a shared library.
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# While that makes sense for software breakpoints (the memory might be
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# unmapped), it doesn't for hardware breakpoints, as those by
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# definition are implemented using a mechanism that is not dependent
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# on being able to modify the target's memory.
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gdb_test "hbreak shrfunc" "Cannot insert hardware breakpoint.*" \
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"hbreak shrfunc complains"
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gdb_test "info break" "hw breakpoint.*y.*$hex.*in shrfunc at.*" \
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"breakpoint not pending"
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