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e3e837844a
Currently, if you run make check-perf on a system with Python 3.8,
tests seen to PASS, but they actually test a lot less than intended,
due to:
PerfTest::assemble, run ...
python BackTrace(64).run()
Traceback (most recent call last):
File "<string>", line 1, in <module>
File "/home/pedro/rocm/gdb/src/gdb/testsuite/gdb.perf/lib/perftest/perftest.py", line 65, in run
self.execute_test()
File "<string>", line 49, in execute_test
File "/home/pedro/rocm/gdb/src/gdb/testsuite/gdb.perf/lib/perftest/measure.py", line 45, in measure
m.start(id)
File "/home/pedro/rocm/gdb/src/gdb/testsuite/gdb.perf/lib/perftest/measure.py", line 102, in start
self.start_time = time.clock()
AttributeError: module 'time' has no attribute 'clock'
Error while executing Python code.
(gdb) PASS: gdb.perf/backtrace.exp: python BackTrace(64).run()
And then, after fixing the above Python compatibility issues (which
will be a separate patch), I get 86 instances of overflowing expect's
buffer, like:
ERROR: internal buffer is full.
UNRESOLVED: gdb.perf/single-step.exp: python SingleStep(1000).run()
This patch fixes both problems by adding & using a gdb_test_python_run
routine that:
- checks for Python errors
- consumes output line by line
gdb/testsuite/ChangeLog:
yyyy-mm-dd Pedro Alves <pedro@palves.net>
* gdb.perf/backtrace.exp: Use gdb_test_python_run.
* gdb.perf/disassemble.exp: Use gdb_test_python_run.
* gdb.perf/single-step.exp: Use gdb_test_python_run.
* gdb.perf/skip-command.exp: Use gdb_test_python_run.
* gdb.perf/skip-prologue.exp: Use gdb_test_python_run.
* gdb.perf/solib.exp: Use gdb_test_python_run.
* gdb.perf/template-breakpoints.exp: Use gdb_test_python_run.
* lib/perftest.exp (gdb_test_python_run): New.
Change-Id: I007af36f164b3f4cda41033616eaaa4e268dfd2f
90 lines
2.4 KiB
Plaintext
90 lines
2.4 KiB
Plaintext
# Copyright (C) 2013-2021 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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# This test case is to test the performance of GDB when it is handling
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# the shared libraries of inferior are loaded and unloaded.
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# There are two parameters in this test:
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# - SOLIB_COUNT is the number of shared libraries program will load
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# and unload
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# - SOLIB_DLCLOSE_REVERSED_ORDER controls the order of dlclose shared
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# libraries. If it is set, program dlclose shared libraries in a
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# reversed order of loading.
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load_lib perftest.exp
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if [skip_perf_tests] {
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return 0
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}
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standard_testfile .c
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set executable $testfile
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set expfile $testfile.exp
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# make check-perf RUNTESTFLAGS='solib.exp SOLIB_COUNT=1024'
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if ![info exists SOLIB_COUNT] {
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set SOLIB_COUNT 128
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}
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PerfTest::assemble {
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global SOLIB_COUNT
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global srcdir subdir srcfile binfile
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for {set i 0} {$i < $SOLIB_COUNT} {incr i} {
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# Produce source files.
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set libname "solib-lib$i"
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set src [standard_output_file $libname.c]
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set exe [standard_output_file $libname]
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gdb_produce_source $src "int shr$i (void) {return 0;}"
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# Compile.
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if { [gdb_compile_shlib $src $exe {debug}] != "" } {
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return -1
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}
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# Delete object files to save some space.
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file delete [standard_output_file "solib-lib$i.c.o"]
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}
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set compile_flags {debug shlib_load}
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global SOLIB_DLCLOSE_REVERSED_ORDER
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if [info exists SOLIB_DLCLOSE_REVERSED_ORDER] {
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lappend compile_flags "additional_flags=-DSOLIB_DLCLOSE_REVERSED_ORDER"
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}
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if { [gdb_compile "$srcdir/$subdir/$srcfile" ${binfile} executable $compile_flags] != "" } {
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return -1
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}
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return 0
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} {
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global binfile
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clean_restart $binfile
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if ![runto_main] {
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fail "can't run to main"
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return -1
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}
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return 0
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} {
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global SOLIB_COUNT
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gdb_test_python_run "SolibLoadUnload\($SOLIB_COUNT\)"
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return 0
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}
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