gcc/testsuite/lib/prune.exp

   1 #   Copyright (C) 1997-2018 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 if ![info exists TEST_ALWAYS_FLAGS] {
  22     set TEST_ALWAYS_FLAGS ""
  23 }
  24 set TEST_ALWAYS_FLAGS "-fno-diagnostics-show-caret -fdiagnostics-color=never $TEST_ALWAYS_FLAGS"
  25
  26 proc prune_gcc_output { text } {
  27     global srcdir
  28
  29     #send_user "Before:$text\n"
  30
  31     # Handle any freeform regexps.
  32     set text [handle-dg-regexps $text]
  33
  34     regsub -all "(^|\n)(\[^\n\]*: )?In ((static member |lambda )?function|member|method|(copy )?constructor|destructor|instantiation|substitution|program|subroutine|block-data)\[^\n\]*" $text "" text
  35     regsub -all "(^|\n)\[^\n\]*(: )?At (top level|global scope):\[^\n\]*" $text "" text
  36     regsub -all "(^|\n)\[^\n\]*:   (recursively )?required \[^\n\]*" $text "" text
  37     regsub -all "(^|\n)\[^\n\]*:   . skipping \[0-9\]* instantiation contexts \[^\n\]*" $text "" text
  38     regsub -all "(^|\n)\[^\n\]*:   in constexpr expansion \[^\n\]*" $text "" text
  39     regsub -all "(^|\n)    inlined from \[^\n\]*" $text "" text
  40     regsub -all "(^|\n)collect2: error: ld returned \[^\n\]*" $text "" text
  41     regsub -all "(^|\n)collect: re(compiling|linking)\[^\n\]*" $text "" text
  42     regsub -all "(^|\n)Please submit.*instructions\[^\n\]*" $text "" text
  43     regsub -all "(^|\n)\[0-9\]\[0-9\]* errors\." $text "" text
  44     regsub -all "(^|\n)(In file included|\[ \]+from)\[^\n\]*" $text "" text
  45
  46     # Ignore informational notes.
  47     regsub -all "(^|\n)\[^\n\]*: note: \[^\n\]*" $text "" text
  48
  49     # Ignore harmless -fpic warnings.
  50     regsub -all "(^|\n)\[^\n\]*: warning: -f(pic|PIC) ignored for target\[^\n\]*" $text "" text
  51     regsub -all "(^|\n)\[^\n\]*: warning: -f(pic|PIC)( and -fpic are| is)? not supported\[^\n\]*" $text "" text
  52
  53     # Ignore errata warning from IA64 assembler.
  54     regsub -all "(^|\n)\[^\n\]*: Additional NOP may be necessary to workaround Itanium processor A/B step errata" $text "" text
  55     regsub -all "(^|\n)\[^\n*\]*: Assembler messages:\[^\n\]*" $text "" text
  56
  57     # Ignore harmless VTA note.
  58     regsub -all "(^|\n)\[^\n\]*: note: variable tracking size limit exceeded with -fvar-tracking-assignments, retrying without\[^\n\]*" $text "" text
  59
  60     # It would be nice to avoid passing anything to gcc that would cause it to
  61     # issue these messages (since ignoring them seems like a hack on our part),
  62     # but that's too difficult in the general case.  For example, sometimes
  63     # you need to use -B to point gcc at crt0.o, but there are some targets
  64     # that don't have crt0.o.
  65     regsub -all "(^|\n)\[^\n\]*file path prefix \[^\n\]* never used" $text "" text
  66     regsub -all "(^|\n)\[^\n\]*linker input file unused since linking not done" $text "" text
  67
  68     # Ignore harmless warnings from Xcode 3.2.x.
  69     regsub -all "(^|\n)\[^\n\]*ld: warning: can't add line info to anonymous symbol\[^\n\]*" $text "" text
  70     regsub -all "(^|\n)\[^\n\]*warning: DWARFDebugInfoEntry::AppendDependants\[^\n\]*AT_\[^\n\]*FORM_ref4\[^\n\]*" $text "" text
  71     regsub -all "(^|\n)\[^\n\]*warning:\[^\n\]*TAG_variable:  AT_location\[^\n\]*didn't have valid function low pc\[^\n\]*" $text "" text
  72
  73     # Ignore harmless warnings from Xcode 4.0.
  74     regsub -all "(^|\n)\[^\n\]*ld: warning: could not create compact unwind for\[^\n\]*" $text "" text
  75
  76     # Call into multiline.exp to handle any multiline output directives.
  77     set text [handle-multiline-outputs $text]
  78
  79     #send_user "After:$text\n"
  80
  81     return $text
  82 }
  83
  84 # escape metacharacters in literal string, so it can be used in regex
  85
  86 proc escape_regex_chars { line } {
  87     return [string map {"^" "\\^"
  88                         "$" "\\$"
  89                         "(" "\\("
  90                         ")" "\\)"
  91                         "[" "\\["
  92                         "]" "\\]"
  93                         "{" "\\{"
  94                         "}" "\\}"
  95                         "." "\\."
  96                         "\\" "\\\\"
  97                         "?" "\\?"
  98                         "+" "\\+"
  99                         "*" "\\*"
 100                         "|" "\\|"} $line]
 101 }
 102
 103 proc prune_file_path { text } {
 104     global srcdir
 105
 106     set safedir [escape_regex_chars $srcdir]
 107     regsub -all "$safedir\/" $text "" text
 108
 109     # Truncate absolute file path into relative path.
 110     set topdir "[file dirname [file dirname [file dirname $safedir]]]"
 111     regsub -all "$topdir\/" $text "" text
 112
 113     return $text
 114 }
 115
 116 # Provide a definition of this if missing (delete after next dejagnu release).
 117
 118 if { [info procs prune_warnings] == "" } then {
 119     proc prune_warnings { text } {
 120         return $text
 121     }
 122 }