gdbserver_tests/filter_gdb.in

   1 #! /bin/sh
   2
   3 # filter the output of gdb.
   4
   5 SED=@SED@
   6
   7 PATTERNFILE=$(mktemp filter_gdb.tmp.XXXXXXXXXX)
   8 cat > $PATTERNFILE <<EOF
   9 #       delete the initial lines between the launch of vgdb and the
  10 #         output of the echo command telling it is launched.
  11 #         This removes a whole lot of uninteresting lines varying
  12 #         with OS/glibc/gdb dep
  13 /Remote debugging using/,/vgdb launched process attached/d
  14
  15 #       general way to delete uninteresting and varying lines.
  16 /filter_gdb BEGIN drop/,/filter_gdb END drop/d
  17
  18 #       delete messages produced by valgrind python code loading.
  19 /Loaded.*valgrind-monitor.py$/d
  20 /Type "help valgrind" for more info\.$/d
  21 #       and remove loading error messages when python scripts haven't
  22 #       been installed yet (running against vg-in-place)
  23 /warning: Missing auto-load script.*/d
  24 /of file .*vgpreload.*so.*/d
  25 /Use.*info auto-load python-scripts.*/d
  26
  27 #       delete messages produced when GDB auto-load denies loading python code.
  28 #       Note that the first pattern is also present in filter_vgdb.in
  29 #       as this line is output on stderr.
  30 /warning: File .*valgrind-monitor.py.*declined.*/d
  31 /To enable execution of this file add/,/info "(gdb)Auto-loading safe path"/d
  32
  33 #       initial tty control character sent by gdb 7.0
  34 s/^\e\[?1034hReading symbols/Reading symbols/
  35
  36 #       remove message about missing debuginfos
  37 /^Missing separate debuginfo/d
  38
  39 #       remove messages about not being able to download debuginfos
  40 /^Download failed: /d
  41
  42 #       suppress lines telling file _exit.c does not exist
  43 /\/_exit.c: No such file or directory/d
  44
  45 #       On FreeBSD if the base and/or lib32 dbg components
  46 #       are installed but not system source then these
  47 #       errors get produced by GDB
  48 /\(rtld_start.S\|kill.S\|_exit.S\|_select.S\): No such file or directory/d
  49
  50 #       Remove some Suse package manager messages
  51 /^Try: zypper install -C/d
  52
  53 #       Remove vgdb message
  54 /relaying data between gdb and process/d
  55
  56 #       Anonymise pid numbers
  57 s/pid [0-9][0-9]*/pid ..../g
  58
  59 #       filter 'remote target killed' messages (produced by gdb >= 8.2)
  60 /(Remote target) killed/d
  61
  62 #       Anonymise Thread numbers
  63 s/Thread [0-9][0-9]*/Thread ..../g
  64
  65 #       delete thread switches
  66 /\[Switching to Thread ....\]/d
  67
  68 #       ??? Probably we had a 'Switching ' message in front of
  69 #        a frame line ?
  70 s/\(\[Switching to thread [1234] (Thread ....)\]\)#0/\1\n#0/
  71
  72 #       Anonymise info threads output (e.g. which thread is running and syscall)
  73 s/^\([ \* ] [0-9] Thread .... (tid [0-9] VgTs_WaitSys)  0x........ in\).*$/\1 syscall .../
  74
  75 #       Newer gdb say Thread .... hit Breakpoint, we expect just Breakpoint.
  76 s/^Thread .... hit Breakpoint /Breakpoint /
  77
  78 #       We expect "Program received" instead of "Thread .... received"
  79 s/^Thread .... received /Program received /
  80
  81 s/#[0-9]\(  0x........ in sleeper_or_burner\)/#.\1/
  82
  83 #       Some gdb versions don't show the source line:number after switching
  84 #               threads in #0  0x........ in do_burn ().
  85 s/\(#0  0x........ in do_burn ()\) at sleepers.c:41/\1/
  86
  87
  88 #       delete Reading symbols file lines
  89 #       Note: The 'done.' in "Reading symbols from <exe>...done."
  90 #         is optional (bugzilla 406357).
  91 /^Reading symbols from .*\.\.\.\(done\.\)\?/d
  92
  93 #       delete Loaded symbols file lines
  94 /^Loaded symbols for .*$/d
  95
  96 #       delete language switch messages.
  97 /^Current language.*/d
  98 /^The current source language is.*/d
  99
 100 #       'exited with code' and 'exited normally' are printed slightly
 101 #       differently between gdb versions, normalize to "Program exited...".
 102 s/^.*\( exited with code [0-9]\+\).$/Program\1\./g
 103 s/^.*\( exited normally\).$/Program\1\./g
 104
 105 #       remove gdb prompts.
 106 s/(gdb) //g
 107
 108 #       remove gdb continuation prompts.
 109 s/^>[> ]*//
 110
 111 #       remove gdb done prompts.
 112 /^done\.$/d
 113
 114 #       anonymise a 'general' system calls stack trace part
 115 s/in _dl_sysinfo_int80 () from \/lib\/ld-linux.so.*/in syscall .../
 116
 117 #       anonymise kill syscall.
 118 s/in kill ().*$/in syscall .../
 119
 120 #       anonymise syscall on ppc64 (bugzilla #284305)
 121 s/in .*kill ().*$/in syscall .../
 122
 123
 124 s/in _dl_sysinfo_int80 ()/in syscall .../
 125 /^   from \/lib\/ld-linux.so.*$/d
 126 s/\(0x........\) in ?? () from \/lib.*$/\1 in syscall .../
 127 s/\(0x........\) in ?? ()$/\1 in syscall .../
 128
 129 #       4 expressions to cover glibc 2.27 way to do a select, such as
 130 #          * 1    Thread 5548 (tid 1 VgTs_WaitSys) 0x0000000004f6203f in __GI___select (
 131 #              nfds=0, readfds=0x0, writefds=0x0, exceptfds=0x0, timeout=0x30a0e0 <t>)
 132 #              at ../sysdeps/unix/sysv/linux/select.c:41
 133 #         If select.c sources are present, we can also get a line containing:
 134 #              return SYSCALL_CANCEL....
 135 s/in __select .*/in syscall .../
 136 s/in __select$/in syscall .../
 137 s/in _select ()/in syscall .../
 138 /nfds=/d
 139 /exceptfds=/d
 140 /timeout=/d
 141 /sysv\/linux\/select\.c/d
 142 /sysv\/linux\/generic\/select.c/d
 143 /return SYSCALL_CANCEL /d
 144 /r = SYSCALL_CANCEL /d
 145
 146 #       a more specialised system call select stack trace part
 147 #             (on 32 bits, we have an int_80, on 64 bits, directly select)
 148 s/in \(.__\)\{0,1\}select () from \/.*$/in syscall .../
 149
 150 /^   from \/lib.*\/libc.so.*$/d
 151 /^   from \/lib64.*\/libc.so.*$/d
 152 /^   from \/lib64.*\/.*\/libc.so.*$/d
 153 /^   from \/lib64.*\/.*\/libc-.*.so/d
 154 s/ from \/lib\/libc\.so.*//
 155
 156 #       and yet another (gdb 7.0 way) to get a system call
 157 s/in select ()$/in syscall .../
 158
 159 #       and yet another (gdb 7.0 arm way) to get a system call
 160 s/in \.__select ()$/in syscall .../
 161
 162 #           + yet another way to get a select system call
 163 s/in select () at \.\.\/sysdeps\/unix\/syscall-template\.S.*$/in syscall .../
 164
 165 #          FreeBSD system call
 166 s/_select () at _select.S:.*$/0x........ in syscall .../
 167
 168 #          FreeBSD system call again
 169 /in _select.S/d
 170
 171 #          FreeBSD system call
 172 s/kill () at kill.S:.*$/0x........ in syscall .../
 173
 174 #      filter out names which starts with a "."
 175 #      such names are used for "function descriptors" on ppc64
 176 #      bugzilla 406561
 177 s/in \.__select () at \.\.\/sysdeps\/unix\/syscall-template\.S.*$/in syscall .../
 178
 179 #       cleanup some lines for a system call (on ubuntu 10 64 bits)
 180 #           (pay attention : there are tab characters there in)
 181 /^[     ]*at \.\.\/sysdeps\/unix\/syscall-template\.S/d
 182 /^[     ]*in \.\.\/sysdeps\/unix\/syscall-template\.S/d
 183
 184 /^[1-9][0-9]*[  ]*\.\.\/sysdeps\/unix\/syscall-template\.S/d
 185 /^[1-9][0-9]*[  ]in *\.\.\/sysdeps\/unix\/syscall-template\.S/d
 186 /^[1-9][0-9]*[  ]T_PSEUDO (SYSCALL_SYMBOL, SYSCALL_NAME, SYSCALL_NARGS)/d
 187
 188 #       and yet another (Solaris way) to get a poll system call
 189 #             (on 32 bits, we have /lib/libc.so.*, on 64 bits, /lib/64/libc.so.*)
 190 s/in __pollsys () from \/.*$/in syscall .../
 191 /^   from \/lib\/64\/libc.so.*$/d
 192
 193 #       which registers can't be modified
 194 s/\(Could not write register \)".*"/\1 "xxx"/
 195 s/\(ERROR changing register \).*$/\1 xxx regno y/
 196
 197 #       special transform for arm/ppc watchpoints which have an additional address
 198 #              at the beginning
 199 s/0x........ in \(main (argc=1, argv=0x........) at watchpoints.c:[24][3689]\)/\1/
 200
 201 s/0x........ in \(main () at clean_after_fork.c:34\)/\1/
 202
 203 #       SIGFPE backtrace is varying so much that we just remove all lines
 204 #       after the signal trapping using an expr in this sed, followed by another sed.
 205 s/\(^.*signal SIGFPE.*$\)/\1\nafter trap SIGFPE/
 206
 207 #       gdb might also try to show the "entry value" p=p@entry=0x...
 208 s/p=p@entry=0x/p=0x/
 209
 210 #       for hgtls the breakpoint p=... address might show var location.
 211 s/\(^Breakpoint 1, tls_ptr (p=0x........\) <tests[0-9+]*>\() at tls.c:55\)/\1\2/
 212
 213 /Id   Target Id *Frame/d
 214 s/^\([ \*] [1234] \) *Thread /\1Thread /
 215
 216 #       Ordering of '  Thread .... (tid .' might differ between gdb version,
 217 #       so remove all such lines except the "current" one (starts with '*').
 218 s/^  [0-9] Thread .... (tid [0-9] .*$//
 219
 220 #       transform info thread of 7.3 into the layout of 7.2 and before.
 221 s/VgTs_WaitSys) 0x/VgTs_WaitSys)  0x/
 222
 223 #       delete lines telling that some memory can't be accessed: this is
 224 #         a.o. produced by gdb 7.2 on arm (same with standard gdbserver)
 225 /Cannot access memory at address 0x......../d
 226
 227 #       Filter 'New thread' lines
 228 #       gdb 7.9 reports new threads at different moment than the previous versions.
 229 #       Filter these new threads lines so as to not be dependent on this
 230 #       gdb aspect.
 231 /\[New Thread/d
 232
 233 #       406355
 234 #       adjust filtering for the new gdb output
 235 #       mcsigpass and mcsignopass tests fails due to the slightly different
 236 #       gdb output. Filter the tests output to make it the same for different
 237 #       gdb version. Change mcsigpass and mcsignopass .exp to fit filtered
 238 #       .out.
 239 s/^0x........ in \(\w\+ (\)/\1/
 240
 241 #       delete empty lines (the last line (only made of prompts) sometimes
 242 #           finishes with a new line, sometimes not ???).
 243 /^$/d
 244
 245
 246 EOF
 247
 248 dir=`dirname $0`
 249
 250 $dir/filter_stderr                                                  |
 251
 252 # Anonymise addresses
 253 $dir/../tests/filter_addresses                                      |
 254
 255 # memcheck stuff
 256 $dir/filter_memcheck_monitor "$@"                                   |
 257
 258 # memcheck filter might leave some "..." lines, we are not interested
 259 $SED -e '/^\ \ \ \ \.\.\.$/d'                                        |
 260
 261 # Anonymise or remove, using the big list of PATTERN prepared above
 262 $SED -f $PATTERNFILE |
 263
 264 # remove all the lines telling where the SIGFPE was trapped.
 265 $SED -e '/after trap SIGFPE/,/after continue SIGFPE/d'                                              |
 266
 267 # join together two lines that gdb 7.1 splits in two (???)
 268 # (in a separate sed, as the below influences the behaviour of the other expressions)
 269 $SED    -e :a -e '$!N;s/\n    at sleepers.c:39/ at sleepers.c:39/;ta' -e 'P;D'
 270
 271 rm $PATTERNFILE