| 1 |
701 |
jeremybenn |
# Copyright (C) 1997, 2001, 2007 Free Software Foundation, Inc.
|
| 2 |
|
|
|
| 3 |
|
|
# This program is free software; you can redistribute it and/or modify
|
| 4 |
|
|
# it under the terms of the GNU General Public License as published by
|
| 5 |
|
|
# the Free Software Foundation; either version 3 of the License, or
|
| 6 |
|
|
# (at your option) any later version.
|
| 7 |
|
|
#
|
| 8 |
|
|
# This program is distributed in the hope that it will be useful,
|
| 9 |
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
| 10 |
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
| 11 |
|
|
# GNU General Public License for more details.
|
| 12 |
|
|
#
|
| 13 |
|
|
# You should have received a copy of the GNU General Public License
|
| 14 |
|
|
# along with GCC; see the file COPYING3. If not see
|
| 15 |
|
|
# .
|
| 16 |
|
|
|
| 17 |
|
|
# Verify various kinds of gcov output: line counts, branch percentages,
|
| 18 |
|
|
# and call return percentages. None of this is language-specific.
|
| 19 |
|
|
|
| 20 |
|
|
global GCOV
|
| 21 |
|
|
|
| 22 |
|
|
#
|
| 23 |
|
|
# clean-gcov -- delete the working files the compiler creates for gcov
|
| 24 |
|
|
#
|
| 25 |
|
|
# TESTCASE is the name of the test.
|
| 26 |
|
|
#
|
| 27 |
|
|
proc clean-gcov { testcase } {
|
| 28 |
|
|
set basename [file tail $testcase]
|
| 29 |
|
|
set base [file rootname $basename]
|
| 30 |
|
|
remote_file host delete $base.gcno $base.gcda \
|
| 31 |
|
|
$basename.gcov $base.h.gcov
|
| 32 |
|
|
}
|
| 33 |
|
|
|
| 34 |
|
|
#
|
| 35 |
|
|
# verify-lines -- check that line counts are as expected
|
| 36 |
|
|
#
|
| 37 |
|
|
# TESTCASE is the name of the test.
|
| 38 |
|
|
# FILE is the name of the gcov output file.
|
| 39 |
|
|
#
|
| 40 |
|
|
proc verify-lines { testcase file } {
|
| 41 |
|
|
#send_user "verify-lines\n"
|
| 42 |
|
|
global subdir
|
| 43 |
|
|
set failed 0
|
| 44 |
|
|
set fd [open $file r]
|
| 45 |
|
|
while { [gets $fd line] >= 0 } {
|
| 46 |
|
|
# We want to match both "-" and "#####" as count as well as numbers,
|
| 47 |
|
|
# since we want to detect lines that shouldn't be marked as covered.
|
| 48 |
|
|
if [regexp "^ *(\[^:]*): *(\[0-9\\-#]+):.*count\\((\[0-9\\-#=]+)\\)(.*)" \
|
| 49 |
|
|
"$line" all is n shouldbe rest] {
|
| 50 |
|
|
if [regexp "^ *{(.*)}" $rest all xfailed] {
|
| 51 |
|
|
switch [dg-process-target $xfailed] {
|
| 52 |
|
|
"N" { continue }
|
| 53 |
|
|
"F" { setup_xfail "*-*-*" }
|
| 54 |
|
|
}
|
| 55 |
|
|
}
|
| 56 |
|
|
if { $is == "" } {
|
| 57 |
|
|
fail "$subdir/$testcase:$n:no data available for this line"
|
| 58 |
|
|
incr failed
|
| 59 |
|
|
} elseif { $is != $shouldbe } {
|
| 60 |
|
|
fail "$subdir/$testcase:$n:is $is:should be $shouldbe"
|
| 61 |
|
|
incr failed
|
| 62 |
|
|
} else {
|
| 63 |
|
|
pass "$subdir/$testcase:$n line count"
|
| 64 |
|
|
}
|
| 65 |
|
|
}
|
| 66 |
|
|
}
|
| 67 |
|
|
close $fd
|
| 68 |
|
|
return $failed
|
| 69 |
|
|
}
|
| 70 |
|
|
|
| 71 |
|
|
#
|
| 72 |
|
|
# verify-branches -- check that branch percentages are as expected
|
| 73 |
|
|
#
|
| 74 |
|
|
# TESTCASE is the name of the test.
|
| 75 |
|
|
# FILE is the name of the gcov output file.
|
| 76 |
|
|
#
|
| 77 |
|
|
# Checks are based on comments in the source file. This means to look for
|
| 78 |
|
|
# branch percentages 10 or 90, 20 or 80, and # 70 or 30:
|
| 79 |
|
|
# /* branch(10, 20, 70) */
|
| 80 |
|
|
# This means that all specified percentages should have been seen by now:
|
| 81 |
|
|
# /* branch(end) */
|
| 82 |
|
|
# All specified percentages must also be seen by the next branch(n) or
|
| 83 |
|
|
# by the end of the file.
|
| 84 |
|
|
#
|
| 85 |
|
|
# Each check depends on the compiler having generated the expected
|
| 86 |
|
|
# branch instructions. Don't check for branches that might be
|
| 87 |
|
|
# optimized away or replaced with predicated instructions.
|
| 88 |
|
|
#
|
| 89 |
|
|
proc verify-branches { testcase file } {
|
| 90 |
|
|
#send_user "verify-branches\n"
|
| 91 |
|
|
set failed 0
|
| 92 |
|
|
set shouldbe ""
|
| 93 |
|
|
set fd [open $file r]
|
| 94 |
|
|
set n 0
|
| 95 |
|
|
while { [gets $fd line] >= 0 } {
|
| 96 |
|
|
regexp "^\[^:\]+: *(\[0-9\]+):" "$line" all n
|
| 97 |
|
|
if [regexp "branch" $line] {
|
| 98 |
|
|
verbose "Processing branch line $n: $line" 3
|
| 99 |
|
|
if [regexp "branch\\((\[0-9 \]+)\\)" "$line" all new_shouldbe] {
|
| 100 |
|
|
# All percentages in the current list should have been seen.
|
| 101 |
|
|
if {[llength $shouldbe] != 0} {
|
| 102 |
|
|
fail "$n: expected branch percentages not found: $shouldbe"
|
| 103 |
|
|
incr failed
|
| 104 |
|
|
set shouldbe ""
|
| 105 |
|
|
}
|
| 106 |
|
|
set shouldbe $new_shouldbe
|
| 107 |
|
|
#send_user "$n: looking for: $shouldbe\n"
|
| 108 |
|
|
# Record the percentages to check for. Replace percentage
|
| 109 |
|
|
# n > 50 with 100-n, since block ordering affects the
|
| 110 |
|
|
# direction of a branch.
|
| 111 |
|
|
for {set i 0} {$i < [llength $shouldbe]} {incr i} {
|
| 112 |
|
|
set num [lindex $shouldbe $i]
|
| 113 |
|
|
if {$num > 50} {
|
| 114 |
|
|
set shouldbe [lreplace $shouldbe $i $i [expr 100 - $num]]
|
| 115 |
|
|
}
|
| 116 |
|
|
}
|
| 117 |
|
|
} elseif [regexp "branch +\[0-9\]+ taken (-\[0-9\]+)%" "$line" \
|
| 118 |
|
|
all taken] {
|
| 119 |
|
|
# Percentages should never be negative.
|
| 120 |
|
|
fail "$n: negative percentage: $taken"
|
| 121 |
|
|
incr failed
|
| 122 |
|
|
} elseif [regexp "branch +\[0-9\]+ taken (\[0-9\]+)%" "$line" \
|
| 123 |
|
|
all taken] {
|
| 124 |
|
|
#send_user "$n: taken = $taken\n"
|
| 125 |
|
|
# Percentages should never be greater than 100.
|
| 126 |
|
|
if {$taken > 100} {
|
| 127 |
|
|
fail "$n: percentage greater than 100: $taken"
|
| 128 |
|
|
incr failed
|
| 129 |
|
|
}
|
| 130 |
|
|
if {$taken > 50} {
|
| 131 |
|
|
set taken [expr 100 - $taken]
|
| 132 |
|
|
}
|
| 133 |
|
|
# If this percentage is one to check for then remove it
|
| 134 |
|
|
# from the list. It's normal to ignore some reports.
|
| 135 |
|
|
set i [lsearch $shouldbe $taken]
|
| 136 |
|
|
if {$i != -1} {
|
| 137 |
|
|
set shouldbe [lreplace $shouldbe $i $i]
|
| 138 |
|
|
}
|
| 139 |
|
|
} elseif [regexp "branch\\(end\\)" "$line"] {
|
| 140 |
|
|
# All percentages in the list should have been seen by now.
|
| 141 |
|
|
if {[llength $shouldbe] != 0} {
|
| 142 |
|
|
fail "$n: expected branch percentages not found: $shouldbe"
|
| 143 |
|
|
incr failed
|
| 144 |
|
|
}
|
| 145 |
|
|
set shouldbe ""
|
| 146 |
|
|
}
|
| 147 |
|
|
}
|
| 148 |
|
|
}
|
| 149 |
|
|
# All percentages in the list should have been seen.
|
| 150 |
|
|
if {[llength $shouldbe] != 0} {
|
| 151 |
|
|
fail "$n: expected branch percentages not found: $shouldbe"
|
| 152 |
|
|
incr failed
|
| 153 |
|
|
}
|
| 154 |
|
|
close $fd
|
| 155 |
|
|
return $failed
|
| 156 |
|
|
}
|
| 157 |
|
|
|
| 158 |
|
|
#
|
| 159 |
|
|
# verify-calls -- check that call return percentages are as expected
|
| 160 |
|
|
#
|
| 161 |
|
|
# TESTCASE is the name of the test.
|
| 162 |
|
|
# FILE is the name of the gcov output file.
|
| 163 |
|
|
#
|
| 164 |
|
|
# Checks are based on comments in the source file. This means to look for
|
| 165 |
|
|
# call return percentages 50, 20, 33:
|
| 166 |
|
|
# /* returns(50, 20, 33) */
|
| 167 |
|
|
# This means that all specified percentages should have been seen by now:
|
| 168 |
|
|
# /* returns(end) */
|
| 169 |
|
|
# All specified percentages must also be seen by the next returns(n) or
|
| 170 |
|
|
# by the end of the file.
|
| 171 |
|
|
#
|
| 172 |
|
|
# Each check depends on the compiler having generated the expected
|
| 173 |
|
|
# call instructions. Don't check for calls that are inserted by the
|
| 174 |
|
|
# compiler or that might be inlined.
|
| 175 |
|
|
#
|
| 176 |
|
|
proc verify-calls { testcase file } {
|
| 177 |
|
|
#send_user "verify-calls\n"
|
| 178 |
|
|
set failed 0
|
| 179 |
|
|
set shouldbe ""
|
| 180 |
|
|
set fd [open $file r]
|
| 181 |
|
|
set n 0
|
| 182 |
|
|
while { [gets $fd line] >= 0 } {
|
| 183 |
|
|
regexp "^\[^:\]+: *(\[0-9\]+):" "$line" all n
|
| 184 |
|
|
if [regexp "return" $line] {
|
| 185 |
|
|
verbose "Processing returns line $n: $line" 3
|
| 186 |
|
|
if [regexp "returns\\((\[0-9 \]+)\\)" "$line" all new_shouldbe] {
|
| 187 |
|
|
# All percentages in the current list should have been seen.
|
| 188 |
|
|
if {[llength $shouldbe] != 0} {
|
| 189 |
|
|
fail "$n: expected return percentages not found: $shouldbe"
|
| 190 |
|
|
incr failed
|
| 191 |
|
|
set shouldbe ""
|
| 192 |
|
|
}
|
| 193 |
|
|
# Record the percentages to check for.
|
| 194 |
|
|
set shouldbe $new_shouldbe
|
| 195 |
|
|
} elseif [regexp "call +\[0-9\]+ returned (-\[0-9\]+)%" "$line" \
|
| 196 |
|
|
all returns] {
|
| 197 |
|
|
# Percentages should never be negative.
|
| 198 |
|
|
fail "$n: negative percentage: $returns"
|
| 199 |
|
|
incr failed
|
| 200 |
|
|
} elseif [regexp "call +\[0-9\]+ returned (\[0-9\]+)%" "$line" \
|
| 201 |
|
|
all returns] {
|
| 202 |
|
|
# For branches we check that percentages are not greater than
|
| 203 |
|
|
# 100 but call return percentages can be, as for setjmp(), so
|
| 204 |
|
|
# don't count that as an error.
|
| 205 |
|
|
#
|
| 206 |
|
|
# If this percentage is one to check for then remove it
|
| 207 |
|
|
# from the list. It's normal to ignore some reports.
|
| 208 |
|
|
set i [lsearch $shouldbe $returns]
|
| 209 |
|
|
if {$i != -1} {
|
| 210 |
|
|
set shouldbe [lreplace $shouldbe $i $i]
|
| 211 |
|
|
}
|
| 212 |
|
|
} elseif [regexp "returns\\(end\\)" "$line"] {
|
| 213 |
|
|
# All percentages in the list should have been seen by now.
|
| 214 |
|
|
if {[llength $shouldbe] != 0} {
|
| 215 |
|
|
fail "$n: expected return percentages not found: $shouldbe"
|
| 216 |
|
|
incr failed
|
| 217 |
|
|
}
|
| 218 |
|
|
set shouldbe ""
|
| 219 |
|
|
}
|
| 220 |
|
|
}
|
| 221 |
|
|
}
|
| 222 |
|
|
# All percentages in the list should have been seen.
|
| 223 |
|
|
if {[llength $shouldbe] != 0} {
|
| 224 |
|
|
fail "$n: expected return percentages not found: $shouldbe"
|
| 225 |
|
|
incr failed
|
| 226 |
|
|
}
|
| 227 |
|
|
close $fd
|
| 228 |
|
|
return $failed
|
| 229 |
|
|
}
|
| 230 |
|
|
|
| 231 |
|
|
# Called by dg-final to run gcov and analyze the results.
|
| 232 |
|
|
#
|
| 233 |
|
|
# ARGS consists of the optional strings "branches" and/or "calls",
|
| 234 |
|
|
# (indicating that these things should be verified) followed by a
|
| 235 |
|
|
# list of arguments to provide to gcov, including the name of the
|
| 236 |
|
|
# source file.
|
| 237 |
|
|
|
| 238 |
|
|
proc run-gcov { args } {
|
| 239 |
|
|
global GCOV
|
| 240 |
|
|
global srcdir subdir
|
| 241 |
|
|
|
| 242 |
|
|
set gcov_args ""
|
| 243 |
|
|
set gcov_verify_calls 0
|
| 244 |
|
|
set gcov_verify_branches 0
|
| 245 |
|
|
set xfailed 0
|
| 246 |
|
|
|
| 247 |
|
|
foreach a $args {
|
| 248 |
|
|
if { $a == "calls" } {
|
| 249 |
|
|
set gcov_verify_calls 1
|
| 250 |
|
|
} elseif { $a == "branches" } {
|
| 251 |
|
|
set gcov_verify_branches 1
|
| 252 |
|
|
} elseif { $gcov_args == "" } {
|
| 253 |
|
|
set gcov_args $a
|
| 254 |
|
|
} else {
|
| 255 |
|
|
switch [dg-process-target $a] {
|
| 256 |
|
|
"N" { return }
|
| 257 |
|
|
"F" { set xfailed 1 }
|
| 258 |
|
|
}
|
| 259 |
|
|
}
|
| 260 |
|
|
}
|
| 261 |
|
|
|
| 262 |
|
|
# Extract the test name from the arguments.
|
| 263 |
|
|
set testcase [lindex $gcov_args end]
|
| 264 |
|
|
|
| 265 |
|
|
verbose "Running $GCOV $testcase" 2
|
| 266 |
|
|
set testcase [remote_download host $testcase]
|
| 267 |
|
|
set result [remote_exec host $GCOV $gcov_args]
|
| 268 |
|
|
if { [lindex $result 0] != 0 } {
|
| 269 |
|
|
if { $xfailed } {
|
| 270 |
|
|
setup_xfail "*-*-*"
|
| 271 |
|
|
}
|
| 272 |
|
|
fail "$subdir/$testcase gcov failed: [lindex $result 1]"
|
| 273 |
|
|
clean-gcov $testcase
|
| 274 |
|
|
return
|
| 275 |
|
|
}
|
| 276 |
|
|
|
| 277 |
|
|
# Get the gcov output file after making sure it exists.
|
| 278 |
|
|
set files [glob -nocomplain $testcase.gcov]
|
| 279 |
|
|
if { $files == "" } {
|
| 280 |
|
|
if { $xfailed } {
|
| 281 |
|
|
setup_xfail "*-*-*"
|
| 282 |
|
|
}
|
| 283 |
|
|
fail "$subdir/$testcase gcov failed: $testcase.gcov does not exist"
|
| 284 |
|
|
clean-gcov $testcase
|
| 285 |
|
|
return
|
| 286 |
|
|
}
|
| 287 |
|
|
remote_upload host $testcase.gcov $testcase.gcov
|
| 288 |
|
|
|
| 289 |
|
|
# Check that line execution counts are as expected.
|
| 290 |
|
|
set lfailed [verify-lines $testcase $testcase.gcov]
|
| 291 |
|
|
|
| 292 |
|
|
# If requested via the .x file, check that branch and call information
|
| 293 |
|
|
# is correct.
|
| 294 |
|
|
if { $gcov_verify_branches } {
|
| 295 |
|
|
set bfailed [verify-branches $testcase $testcase.gcov]
|
| 296 |
|
|
} else {
|
| 297 |
|
|
set bfailed 0
|
| 298 |
|
|
}
|
| 299 |
|
|
if { $gcov_verify_calls } {
|
| 300 |
|
|
set cfailed [verify-calls $testcase $testcase.gcov]
|
| 301 |
|
|
} else {
|
| 302 |
|
|
set cfailed 0
|
| 303 |
|
|
}
|
| 304 |
|
|
|
| 305 |
|
|
# Report whether the gcov test passed or failed. If there were
|
| 306 |
|
|
# multiple failures then the message is a summary.
|
| 307 |
|
|
set tfailed [expr $lfailed + $bfailed + $cfailed]
|
| 308 |
|
|
if { $xfailed } {
|
| 309 |
|
|
setup_xfail "*-*-*"
|
| 310 |
|
|
}
|
| 311 |
|
|
if { $tfailed > 0 } {
|
| 312 |
|
|
fail "$subdir/$testcase gcov: $lfailed failures in line counts, $bfailed in branch percentages, $cfailed in return percentages"
|
| 313 |
|
|
} else {
|
| 314 |
|
|
pass "$subdir/$testcase gcov"
|
| 315 |
|
|
clean-gcov $testcase
|
| 316 |
|
|
}
|
| 317 |
|
|
}
|
