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https://sourceware.org/git/binutils-gdb.git
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14fa8fb307
Adds a new method 'find' to the gdb.RegisterDescriptorIterator class, this allows gdb.RegisterDescriptor objects to be looked up directly by register name rather than having to iterate over all registers. This will be of use for a later commit. I've documented the new function in the manual, but I don't think a NEWS entry is required here, as, since the last release, the whole register descriptor mechanism is new, and is already mentioned in the NEWS file. gdb/ChangeLog: * python/py-registers.c: Add 'user-regs.h' include. (register_descriptor_iter_find): New function. (register_descriptor_iterator_object_methods): New static global methods array. (register_descriptor_iterator_object_type): Add pointer to methods array. gdb/testsuite/ChangeLog: * gdb.python/py-arch-reg-names.exp: Add additional tests. gdb/doc/ChangeLog: * python.texi (Registers In Python): Document new find function.
122 lines
3.7 KiB
Plaintext
122 lines
3.7 KiB
Plaintext
# Copyright 2020 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 the gdb.Architecture.registers functionality.
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load_lib gdb-python.exp
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standard_testfile py-arch.c
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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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# Skip all tests if Python scripting is not enabled.
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if { [skip_python_tests] } { continue }
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if ![runto_main] {
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return -1
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}
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# First, use 'info registers' to get a list of register names.
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set regs {}
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gdb_test_multiple "info registers general" "info registers general" {
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-re "^info registers general\r\n" {
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exp_continue
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}
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-re "^(\[^ \t\]+)\[ \t\]+\[^\r\n\]+\r\n" {
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set reg $expect_out(1,string)
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lappend regs $reg
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exp_continue
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}
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-re "^$gdb_prompt " {
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}
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}
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gdb_assert {[llength $regs] > 0} \
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"Found at least one register"
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# Now get the same register names using Python API.
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gdb_py_test_silent_cmd \
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"python frame = gdb.selected_frame()" "get frame" 0
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gdb_py_test_silent_cmd \
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"python arch = frame.architecture()" "get arch" 0
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gdb_py_test_silent_cmd \
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"python regs = list (arch.registers (\"general\"))" \
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"get general registers" 0
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gdb_py_test_silent_cmd \
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"python regs = map (lambda r : r.name, regs)" \
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"get names of general registers" 0
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set py_regs {}
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gdb_test_multiple "python print (\"\\n\".join (regs))" \
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"general register from python" {
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-re "^python print \[^\r\n\]+\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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set reg $expect_out(1,string)
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lappend py_regs $reg
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exp_continue
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}
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-re "^$gdb_prompt " {
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}
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}
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gdb_assert {[llength $py_regs] > 0} \
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"Found at least one register from python"
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gdb_assert {[llength $py_regs] == [llength $regs]} \
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"Same numnber of registers found"
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set found_non_match 0
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for { set i 0 } { $i < [llength $regs] } { incr i } {
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if {[lindex $regs $i] != [lindex $py_regs $i]} {
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set found_non_match 1
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}
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}
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gdb_assert { $found_non_match == 0 } "all registers match"
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# Check that we get the same register descriptors from two different
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# iterators.
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gdb_py_test_silent_cmd \
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"python iter1 = arch.registers ()" \
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"get first all register iterator" 0
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gdb_py_test_silent_cmd \
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"python iter2 = arch.registers ()" \
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"get second all register iterator" 0
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gdb_py_test_silent_cmd \
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[multi_line_input \
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"python" \
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"for r1, r2 in zip(iter1, iter2):" \
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" if (r1.name != r2.name):"\
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" raise gdb.GdbError (\"miss-matched names\")" \
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" if (r1 != r2):" \
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" raise gdb.GdbError (\"miss-matched objects\")" \
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"\004" ] \
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"check names and objects match" 1
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# Ensure that the '.find' method on the iterator returns the same
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# Python object as we got from the iterator's list of descriptors.
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gdb_py_test_silent_cmd \
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[multi_line \
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"python" \
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"def check_regs (arch, regs):" \
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" for r in (regs):" \
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" if (arch.registers ().find (r.name) != r):" \
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" raise gdb.GdbError (\"object miss-match\")" \
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"end" ] \
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"build check_obj function" 0
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gdb_py_test_silent_cmd \
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"python check_regs (arch, arch.registers (\"general\"))" \
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"ensure find gets expected descriptors" 1
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