# Load support procs.
load_lib gcc-dg.exp
+load_lib gcov.exp
global GCC_UNDER_TEST
set GCOV gcov
}
-# Proc to delete the working files created by the compiler for gcov.
-
-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 } {
- 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 } {
- global bmessage
- global subdir
- set failed 0
- set bmessage ""
- set shouldbe ""
- set fd [open $file r]
- while { [gets $fd line] >= 0 } {
- if [regexp "branch" $line] {
- verbose "Processing branch line: $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 "expected branch percentages not found: $shouldbe"
- }
- incr failed
- set shouldbe ""
- }
- set shouldbe $new_shouldbe
- # Record the percentages to check for. Replace percentage
- # n > 50 with 100-n, since block ordering affects the
- # direction of a branch.
- for {set i 0} {$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 "negative percentage: $taken"
- }
- incr failed
- } elseif [regexp "branch \[0-9\]+ taken = (\[0-9\]+)%" "$line" all taken] {
- # Percentages should never be greater than 100.
- if {$taken > 100} {
- if { $failed == 0 } {
- set bmessage "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 "expected branch 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 bmessage "expected branch percentages not found: $shouldbe"
- }
- 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 } {
- global cmessage
- global subdir
- set failed 0
- set cmessage ""
- set shouldbe ""
- set fd [open $file r]
- while { [gets $fd line] >= 0 } {
- if [regexp "returns" $line] {
- verbose "Processing returns line: $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 "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 "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 "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 "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] {
- setup_xfail $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] {
- setup_xfail $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 ""
- }
-
- clean-gcov $testcase
-
- # 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"
- }
-}
-
# Initialize harness.
dg-init
projects / platform / upstream / linaro-gcc.git / commitdiff