gdbserver_tests/filter_gdb

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