| # Copyright (C) 1997, 2001 Free Software Foundation, Inc. |
| |
| # This program is free software; you can redistribute it and/or modify |
| # it under the terms of the GNU General Public License as published by |
| # the Free Software Foundation; either version 2 of the License, or |
| # (at your option) any later version. |
| # |
| # This program is distributed in the hope that it will be useful, |
| # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| # GNU General Public License for more details. |
| # |
| # You should have received a copy of the GNU General Public License |
| # along with this program; if not, write to the Free Software |
| # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| |
| # Verify various kinds of gcov output: line counts, branch percentages, |
| # and call return percentages. None of this is language-specific. |
| |
| global GCOV |
| |
| # |
| # clean-gcov -- delete the working files the compiler creates for gcov |
| # |
| # TESTCASE is the name of the test. |
| # |
| proc clean-gcov { testcase } { |
| set basename [file tail $testcase] |
| set base [file rootname $basename] |
| remote_file host delete $base.bb $base.bbg $base.da $basename.gcov |
| } |
| |
| # |
| # verify-lines -- check that line counts are as expected |
| # |
| # TESTCASE is the name of the test. |
| # FILE is the name of the gcov output file. |
| # |
| proc verify-lines { testcase file } { |
| #send_user "verify-lines\n" |
| global subdir |
| set failed 0 |
| set lmessage "" |
| set output [grep $file ".*count\\(\[0-9\]+\\)" line] |
| #send_user "output:$output\n" |
| foreach line $output { |
| verbose "Processing count line: $line" 3 |
| #send_user "line:$line\n" |
| if [regexp "(\[0-9\]+) *(\[0-9\]+).*count\\((\[0-9\]+)\\)" \ |
| "$line" all n is shouldbe] { |
| #send_user "n $n:is $is:shouldbe $shouldbe\n" |
| if { $is == "" } { |
| if { $failed == 0 } { |
| set lmessage "$n:no data available for this line" |
| } |
| incr failed |
| } elseif { $is != $shouldbe } { |
| if { $failed == 0 } { |
| set lmessage "$n:is $is:should be $shouldbe" |
| } |
| incr failed |
| } |
| } else { |
| if { $failed == 0 } { |
| set lmessage "can't parse $line (in wrong place?)" |
| } |
| incr failed |
| } |
| } |
| return [list $failed $lmessage] |
| } |
| |
| # |
| # verify-branches -- check that branch percentages are as expected |
| # |
| # TESTCASE is the name of the test. |
| # FILE is the name of the gcov output file. |
| # |
| # Checks are based on comments in the source file. This means to look for |
| # branch percentages 10 or 90, 20 or 80, and # 70 or 30: |
| # /* branch(10, 20, 70) */ |
| # This means that all specified percentages should have been seen by now: |
| # /* branch(end) */ |
| # All specified percentages must also be seen by the next branch(n) or |
| # by the end of the file. |
| # |
| # Each check depends on the compiler having generated the expected |
| # branch instructions. Don't check for branches that might be |
| # optimized away or replaced with predicated instructions. |
| # |
| proc verify-branches { testcase file } { |
| #send_user "verify-branches\n" |
| global bmessage |
| global subdir |
| set failed 0 |
| set bmessage "" |
| set shouldbe "" |
| set fd [open $file r] |
| set n 0 |
| while { [gets $fd line] >= 0 } { |
| incr n |
| if [regexp "branch" $line] { |
| verbose "Processing branch line $n: $line" 3 |
| if [regexp "branch\\((\[0-9 \]+)\\)" "$line" all new_shouldbe] { |
| # All percentages in the current list should have been seen. |
| if {[llength $shouldbe] != 0} { |
| if { $failed == 0 } { |
| set bmessage \ |
| "$n: expected branch percentages not found: $shouldbe" |
| } |
| #send_user "$n: expected branch percentages not found: $shouldbe\n" |
| incr failed |
| set shouldbe "" |
| } |
| set shouldbe $new_shouldbe |
| #send_user "$n: looking for: $shouldbe\n" |
| # Record the percentages to check for. Replace percentage |
| # n > 50 with 100-n, since block ordering affects the |
| # direction of a branch. |
| for {set i 0} {$i < [llength $shouldbe]} {incr i} { |
| set num [lindex $shouldbe $i] |
| if {$num > 50} { |
| set shouldbe [lreplace $shouldbe $i $i [expr 100 - $num]] |
| } |
| } |
| } elseif [regexp "branch \[0-9\]+ taken = (-\[0-9\]+)%" "$line" \ |
| all taken] { |
| # Percentages should never be negative. |
| if { $failed == 0 } { |
| set bmessage "$n: negative percentage: $taken" |
| } |
| incr failed |
| } elseif [regexp "branch \[0-9\]+ taken = (\[0-9\]+)%" "$line" \ |
| all taken] { |
| #send_user "$n: taken = $taken\n" |
| # Percentages should never be greater than 100. |
| if {$taken > 100} { |
| if { $failed == 0 } { |
| set bmessage "$n: percentage greater than 100: $taken" |
| } |
| incr failed |
| } |
| if {$taken > 50} { |
| set taken [expr 100 - $taken] |
| } |
| # If this percentage is one to check for then remove it |
| # from the list. It's normal to ignore some reports. |
| set i [lsearch $shouldbe $taken] |
| if {$i != -1} { |
| set shouldbe [lreplace $shouldbe $i $i] |
| } |
| } elseif [regexp "branch\\(end\\)" "$line"] { |
| # All percentages in the list should have been seen by now. |
| if {[llength $shouldbe] != 0} { |
| if { $failed == 0 } { |
| set bmessage \ |
| "$n: expected branch percentages not found: $shouldbe" |
| } |
| #send_user "$n: expected branch percentages not found: $shouldbe\n" |
| incr failed |
| } |
| set shouldbe "" |
| } |
| } |
| } |
| # All percentages in the list should have been seen. |
| if {[llength $shouldbe] != 0} { |
| if { $failed == 0 } { |
| set bmessage "$n: expected branch percentages not found: $shouldbe" |
| } |
| #send_user "$n: expected branch percentages not found: $shouldbe\n" |
| incr failed |
| } |
| close $fd |
| return [list $failed $bmessage] |
| } |
| |
| # |
| # verify-calls -- check that call return percentages are as expected |
| # |
| # TESTCASE is the name of the test. |
| # FILE is the name of the gcov output file. |
| # |
| # Checks are based on comments in the source file. This means to look for |
| # call return percentages 50, 20, 33: |
| # /* returns(50, 20, 33) */ |
| # This means that all specified percentages should have been seen by now: |
| # /* returns(end) */ |
| # All specified percentages must also be seen by the next returns(n) or |
| # by the end of the file. |
| # |
| # Each check depends on the compiler having generated the expected |
| # call instructions. Don't check for calls that are inserted by the |
| # compiler or that might be inlined. |
| # |
| proc verify-calls { testcase file } { |
| #send_user "verify-calls\n" |
| global cmessage |
| global subdir |
| set failed 0 |
| set cmessage "" |
| set shouldbe "" |
| set fd [open $file r] |
| set n 0 |
| while { [gets $fd line] >= 0 } { |
| incr n |
| if [regexp "returns" $line] { |
| verbose "Processing returns line $n: $line" 3 |
| if [regexp "returns\\((\[0-9 \]+)\\)" "$line" all new_shouldbe] { |
| # All percentages in the current list should have been seen. |
| if {[llength $shouldbe] != 0} { |
| if { $failed == 0 } { |
| set cmessage \ |
| "$n: expected return percentages not found: $shouldbe" |
| } |
| incr failed |
| set shouldbe "" |
| } |
| # Record the percentages to check for. |
| set shouldbe $new_shouldbe |
| } elseif [regexp "call \[0-9\]+ returns = (-\[0-9\]+)%" "$line" \ |
| all returns] { |
| # Percentages should never be negative. |
| if { $failed == 0 } { |
| set cmessage "$n: negative percentage: $returns" |
| } |
| incr failed |
| } elseif [regexp "call \[0-9\]+ returns = (\[0-9\]+)%" "$line" \ |
| all returns] { |
| # For branches we check that percentages are not greater than |
| # 100 but call return percentages can be, as for setjmp(), so |
| # don't count that as an error. |
| # |
| # If this percentage is one to check for then remove it |
| # from the list. It's normal to ignore some reports. |
| set i [lsearch $shouldbe $returns] |
| if {$i != -1} { |
| set shouldbe [lreplace $shouldbe $i $i] |
| } |
| } elseif [regexp "returns\\(end\\)" "$line"] { |
| # All percentages in the list should have been seen by now. |
| if {[llength $shouldbe] != 0} { |
| if { $failed == 0 } { |
| set cmessage \ |
| "$n: expected return percentages not found: $shouldbe" |
| } |
| incr failed |
| } |
| set shouldbe "" |
| } |
| } |
| } |
| # All percentages in the list should have been seen. |
| if {[llength $shouldbe] != 0} { |
| if { $failed == 0 } { |
| set cmessage "$n: expected return percentages not found: $shouldbe" |
| } |
| incr failed |
| } |
| close $fd |
| return [list $failed $cmessage] |
| } |
| |
| # Called by dg-final to run gcov and analyze the results. |
| # |
| # ARGS is the options to pass to gcov followed by the name of the |
| # test source file. |
| |
| proc run-gcov { args } { |
| global GCOV |
| global srcdir subdir |
| |
| # Extract the test name from the arguments. |
| set testcase [lindex $args end] |
| |
| # Get special options for this test from the .x script, if present. |
| # This can include: |
| # gcov_execute_xfail string to pass to setup_xfail |
| # gcov_verify_xfail string to pass to setup_xfail |
| # gcov_verify_branches if defined, check branch percentages |
| # gcov_verify_calls if defined, check call return percentages |
| if [file exists [file rootname $srcdir/$subdir/$testcase].x] { |
| set done_p 0 |
| catch "set done_p \[source [file rootname $srcdir/$subdir/$testcase].x\]" |
| if { $done_p } { |
| return |
| } |
| } |
| |
| if [info exists gcov_execute_xfail] { |
| eval setup_xfail [split $gcov_execute_xfail] |
| } |
| |
| verbose "Running $GCOV $testcase" 2 |
| set testcase [remote_download host $testcase]; |
| set result [remote_exec host $GCOV $args]; |
| if { [lindex $result 0] != 0 } { |
| fail "$subdir/$testcase gcov failed: [lindex $result 1]" |
| clean-gcov $testcase |
| return |
| } |
| |
| # Get the gcov output file after making sure it exists. |
| set files [glob -nocomplain $testcase.gcov] |
| if { $files == "" } { |
| fail "$subdir/$testcase gcov failed: $testcase.gcov does not exist" |
| clean-gcov $testcase |
| return; |
| } |
| remote_upload host $testcase.gcov $testcase.gcov; |
| |
| if [info exists gcov_verify_xfail] { |
| eval setup_xfail [split $gcov_verify_xfail] |
| } |
| |
| # Check that line execution counts are as expected. |
| set loutput [verify-lines $testcase $testcase.gcov] |
| set lfailed [lindex $loutput 0] |
| set lmessage [lindex $loutput 1] |
| |
| # If requested via the .x file, check that branch and call information |
| # is correct. |
| if [info exists gcov_verify_branches] { |
| set boutput [verify-branches $testcase $testcase.gcov] |
| set bfailed [lindex $boutput 0] |
| set bmessage [lindex $boutput 1] |
| } else { |
| set bfailed 0 |
| set bmessage "" |
| } |
| if [info exists gcov_verify_calls] { |
| set coutput [verify-calls $testcase $testcase.gcov] |
| set cfailed [lindex $coutput 0] |
| set cmessage [lindex $coutput 1] |
| } else { |
| set cfailed 0 |
| set cmessage "" |
| } |
| |
| # Report whether the gcov test passed or failed. If there were |
| # multiple failures then the message is a summary. |
| set tfailed [expr $lfailed + $bfailed + $cfailed] |
| if { $tfailed > 0 } { |
| if { $tfailed == 1 } { |
| set vmessage "$lmessage$bmessage$cmessage" |
| } elseif { $bfailed == 0 && $cfailed == 0 } { |
| set vmessage "$lfailed failures in line counts" |
| } elseif { $lfailed == 0 && $cfailed == 0 } { |
| set vmessage "$bfailed failures in branch percentages" |
| } elseif { $lfailed == 0 && $bfailed == 0 } { |
| set vmessage "$cfailed failures in return percentages" |
| } else { |
| set vmessage "$lfailed failures in line counts, $bfailed in branch percentages, $cfailed in return percentages" |
| } |
| fail "$subdir/$testcase gcov: $vmessage" |
| } else { |
| pass "$subdir/$testcase gcov" |
| clean-gcov $testcase |
| } |
| } |