gcc/testsuite/lib/prune.exp

   1 #   Copyright (C) 1997-2023 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 # <http://www.gnu.org/licenses/>.
  16
  17 # Prune messages from gcc that aren't useful.
  18
  19 load_lib multiline.exp
  20
  21 # Add options to TEST_ALWAYS_FLAGS so that diagnostics have the expected output
  22 # format.  Note: You should not normally need to add more options here.  If you
  23 # have made a change to the default diagnostic output format and are wanting to
  24 # undo that in the testsuite here, then please update the handling of
  25 # -fdiagnostics-plain-output in opts-common.c instead.
  26
  27 if ![info exists TEST_ALWAYS_FLAGS] {
  28     set TEST_ALWAYS_FLAGS ""
  29 }
  30 set TEST_ALWAYS_FLAGS "-fdiagnostics-plain-output $TEST_ALWAYS_FLAGS"
  31
  32 proc prune_gcc_output { text } {
  33     global srcdir
  34
  35     #send_user "Before:$text\n"
  36
  37     # Handle any freeform regexps.
  38     set text [handle-dg-regexps $text]
  39
  40     # Remove Windows .exe suffix
  41     regsub -all "(as|cc1|cc1plus|collect2|f951|ld|lto-wrapper)\.exe?:" $text {\1:} text
  42
  43     regsub -all "(^|\n)(\[^\n\]*: \[iI\]|I)n ((static member |lambda )?function|member|method|(copy )?constructor|destructor|instantiation|substitution|program|subroutine|block-data)\[^\n\]*" $text "" text
  44     regsub -all "(^|\n)\[^\n\]*(: )?At (top level|global scope):\[^\n\]*" $text "" text
  45     regsub -all "(^|\n)\[^\n\]*:   (recursively )?required \[^\n\]*" $text "" text
  46     regsub -all "(^|\n)\[^\n\]*:   . skipping \[0-9\]* instantiation contexts \[^\n\]*" $text "" text
  47     regsub -all "(^|\n)\[^\n\]*:   in .constexpr. expansion \[^\n\]*" $text "" text
  48     regsub -all "(^|\n)\[^\n\]*:   in requirements \[^\n\]*" $text "" text
  49     regsub -all "(^|\n)    inlined from \[^\n\]*" $text "" text
  50     regsub -all "(^|\n)\[^\n\]*: error: ld returned \[^\n\]*" $text "" text
  51     regsub -all "(^|\n)\[^\n\]*: re(compiling|linking)\[^\n\]*" $text "" text
  52     regsub -all "(^|\n)Please submit.*instructions\[^\n\]*" $text "" text
  53     regsub -all "(^|\n)\[0-9\]\[0-9\]* errors\." $text "" text
  54
  55     # Diagnostic inclusion stack
  56     regsub -all "(^|\n)(In file)?\[ \]+included from \[^\n\]*" $text "" text
  57     regsub -all "(^|\n)\[ \]+from \[^\n\]*" $text "" text
  58     regsub -all "(^|\n)(In|of) module( \[^\n \]*,)? imported at \[^\n\]*" $text "" text
  59
  60     global prune_notes
  61     if { $prune_notes } {
  62         # Ignore informational notes.
  63         regsub -all "(^|\n)\[^\n\]*: note: \[^\n\]*" $text "" text
  64     }
  65
  66     # Ignore harmless -fpic warnings.
  67     regsub -all "(^|\n)\[^\n\]*: warning: -f(pic|PIC) ignored for target\[^\n\]*" $text "" text
  68     regsub -all "(^|\n)\[^\n\]*: warning: -f(pic|PIC)( and -fpic are| is)? not supported\[^\n\]*" $text "" text
  69
  70     # Ignore errata warning from IA64 assembler.
  71     regsub -all "(^|\n)\[^\n\]*: Additional NOP may be necessary to workaround Itanium processor A/B step errata" $text "" text
  72     regsub -all "(^|\n)\[^\n*\]*: Assembler messages:\[^\n\]*" $text "" text
  73
  74     # Ignore harmless VTA note.
  75     regsub -all "(^|\n)\[^\n\]*: note: variable tracking size limit exceeded with -fvar-tracking-assignments, retrying without\[^\n\]*" $text "" text
  76
  77     # It would be nice to avoid passing anything to gcc that would cause it to
  78     # issue these messages (since ignoring them seems like a hack on our part),
  79     # but that's too difficult in the general case.  For example, sometimes
  80     # you need to use -B to point gcc at crt0.o, but there are some targets
  81     # that don't have crt0.o.
  82     regsub -all "(^|\n)\[^\n\]*file path prefix \[^\n\]* never used" $text "" text
  83     regsub -all "(^|\n)\[^\n\]*linker input file unused since linking not done" $text "" text
  84
  85     # Ideally the tests would indicate that executable stacks were needed
  86     # to the linker.  But the option for that varies and may not even exist
  87     # on some targets.  So we're stuck pruning the warning.
  88     regsub -all "(^|\n)(\[^\n\]*: warning:\[^\n\]*requires executable stack\[^\n\]*\n?)+" $text "\\1" text
  89
  90     # Ignore harmless warnings from Xcode 3.2.x.
  91     regsub -all "(^|\n)\[^\n\]*ld: warning: can't add line info to anonymous symbol\[^\n\]*" $text "" text
  92     regsub -all "(^|\n)\[^\n\]*warning: DWARFDebugInfoEntry::AppendDependants\[^\n\]*AT_\[^\n\]*FORM_ref4\[^\n\]*" $text "" text
  93     regsub -all "(^|\n)\[^\n\]*warning:\[^\n\]*TAG_variable:  AT_location\[^\n\]*didn't have valid function low pc\[^\n\]*" $text "" text
  94
  95     # Ignore harmless warnings from Xcode 4.0.
  96     regsub -all "(^|\n)\[^\n\]*ld: warning: could not create compact unwind for\[^\n\]*" $text "" text
  97
  98     # Ignore dsymutil warning (tool bug is actually linker)
  99     regsub -all "(^|\n)\[^\n\]*could not find object file symbol for symbol\[^\n\]*" $text "" text
 100
 101     # Ignore stabs obsoletion warnings
 102     regsub -all "(^|\n)\[^\n\]*\[Ww\]arning: STABS debugging information is obsolete and not supported anymore\[^\n\]*" $text "" text
 103
 104     # Ignore missing lto jobserver for tests that do more than 1 LTRANS unit
 105     regsub -all "(^|\n)\[^\n\]*lto\[^\n\]*: warning: using serial compilation of \[^\n\]*" $text "" text
 106     regsub -all "(^|\n)\[^\n\]*lto\[^\n\]*: note: see the \[^\n\]*'-flto' option documentation\[^\n\]* for more information" $text "" text
 107
 108     # Many tests that use visibility will still pass on platforms that don't support it.
 109     regsub -all "(^|\n)\[^\n\]*lto1: warning: visibility attribute not supported in this configuration; ignored\[^\n\]*" $text "" text
 110
 111     #send_user "After:$text\n"
 112
 113     return $text
 114 }
 115
 116 # escape metacharacters in literal string, so it can be used in regex
 117
 118 proc escape_regex_chars { line } {
 119     return [string map {"^" "\\^"
 120                         "$" "\\$"
 121                         "(" "\\("
 122                         ")" "\\)"
 123                         "[" "\\["
 124                         "]" "\\]"
 125                         "{" "\\{"
 126                         "}" "\\}"
 127                         "." "\\."
 128                         "\\" "\\\\"
 129                         "?" "\\?"
 130                         "+" "\\+"
 131                         "*" "\\*"
 132                         "|" "\\|"} $line]
 133 }
 134
 135 proc prune_file_path { text } {
 136     global srcdir
 137
 138     set safedir [escape_regex_chars $srcdir]
 139     regsub -all "$safedir\/" $text "" text
 140
 141     # Truncate absolute file path into relative path.
 142     set topdir "[file dirname [file dirname [file dirname $safedir]]]"
 143     regsub -all "$topdir\/" $text "" text
 144
 145     return $text
 146 }
 147
 148 # Prune internal compiler error messages, including the "Please submit..."
 149 # footnote.
 150
 151 proc prune_ices { text } {
 152   regsub -all "(^|\n)\[^\n\]*: internal compiler error:.*\nSee \[^\n\]*" $text "" text
 153   regsub -all "(^|\n|')*Internal compiler error:.*\nSee \[^\n\]*" $text "" text
 154   return $text
 155 }
 156
 157 # Provide a definition of this if missing (delete after next dejagnu release).
 158
 159 if { [info procs prune_warnings] == "" } then {
 160     proc prune_warnings { text } {
 161         return $text
 162     }
 163 }