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|
#! /bin/sh
# filter the output of gdb.
PATTERNFILE=$(mktemp filter_gdb.tmp.XXXXXXXXXX)
cat > $PATTERNFILE <<EOF
# delete the initial lines between the launch of vgdb and the
# output of the echo command telling it is launched.
# This removes a whole lot of uninteresting lines varying
# with OS/glibc/gdb dep
/Remote debugging using/,/vgdb launched process attached/d
# general way to delete uninteresting and varying lines.
/filter_gdb BEGIN drop/,/filter_gdb END drop/d
# initial tty control character sent by gdb 7.0
s/^\[?1034hReading symbols/Reading symbols/
# remove message about missing debuginfos
/^Missing separate debuginfo/d
# suppress lines telling file _exit.c does not exist
/\/_exit.c: No such file or directory/d
# Remove some Suse package manager messages
/^Try: zypper install -C/d
# Remove vgdb message
/relaying data between gdb and process/d
# Anonymise pid numbers
s/pid [0-9][0-9]*/pid ..../g
# filter 'remote target killed' messages (produced by gdb >= 8.2)
/(Remote target) killed/d
# Anonymise Thread numbers
s/Thread [0-9][0-9]*/Thread ..../g
# delete thread switches
/\[Switching to Thread ....\]/d
# ??? Probably we had a 'Switching ' message in front of
# a frame line ?
s/\(\[Switching to thread [1234] (Thread ....)\]\)#0/\1\n#0/
# Anonymise info threads output (e.g. which thread is running and syscall)
s/^\([ \* ] [0-9] Thread .... (tid [0-9] VgTs_WaitSys) 0x........ in\).*$/\1 syscall .../
# Newer gdb say Thread .... hit Breakpoint, we expect just Breakpoint.
s/^Thread .... hit Breakpoint /Breakpoint /
# We expect "Program received" instead of "Thread .... received"
s/^Thread .... received /Program received /
s/#[0-9]\( 0x........ in sleeper_or_burner\)/#.\1/
# Some gdb versions don't show the source line:number after switching
# threads in #0 0x........ in do_burn ().
s/\(#0 0x........ in do_burn ()\) at sleepers.c:41/\1/
# delete Reading symbols file lines
# Note: The 'done.' in "Reading symbols from <exe>...done."
# is optional (bugzilla 406357).
/^Reading symbols from .*\.\.\.\(done\.\)\?/d
# delete Loaded symbols file lines
/^Loaded symbols for .*$/d
# delete language switch messages.
/^Current language.*/d
/^The current source language is.*/d
# 'exited with code' and 'exited normally' are printed slightly
# differently between gdb versions, normalize to "Program exited...".
s/^.*\( exited with code [0-9]\+\).$/Program\1\./g
s/^.*\( exited normally\).$/Program\1\./g
# remove gdb prompts.
s/(gdb) //g
# remove gdb continuation prompts.
s/^>[> ]*//
# remove gdb done prompts.
/^done\.$/d
# anonymise a 'general' system calls stack trace part
s/in _dl_sysinfo_int80 () from \/lib\/ld-linux.so.*/in syscall .../
# anonymise kill syscall.
s/in kill ().*$/in syscall .../
# anonymise syscall on ppc64 (bugzilla #284305)
s/in .*kill ().*$/in syscall .../
s/in _dl_sysinfo_int80 ()/in syscall .../
/^ from \/lib\/ld-linux.so.*$/d
s/\(0x........\) in ?? () from \/lib.*$/\1 in syscall .../
s/\(0x........\) in ?? ()$/\1 in syscall .../
# 4 expressions to cover glibc 2.27 way to do a select, such as
# * 1 Thread 5548 (tid 1 VgTs_WaitSys) 0x0000000004f6203f in __GI___select (
# nfds=0, readfds=0x0, writefds=0x0, exceptfds=0x0, timeout=0x30a0e0 <t>)
# at ../sysdeps/unix/sysv/linux/select.c:41
# If select.c sources are present, we can also get a line containing:
# return SYSCALL_CANCEL....
s/in __select .*/in syscall .../
/exceptfds/d
/sysv\/linux\/select\.c/d
/return SYSCALL_CANCEL /d
# a more specialised system call select stack trace part
# (on 32 bits, we have an int_80, on 64 bits, directly select)
s/in \(.__\)\{0,1\}select () from \/.*$/in syscall .../
/^ from \/lib\/libc.so.*$/d
/^ from \/lib64\/libc.so.*$/d
/^ from \/lib64\/.*\/libc.so.*$/d
# and yet another (gdb 7.0 way) to get a system call
s/in select ()$/in syscall .../
# and yet another (gdb 7.0 arm way) to get a system call
s/in \.__select ()$/in syscall .../
# + yet another way to get a select system call
s/in select () at \.\.\/sysdeps\/unix\/syscall-template\.S.*$/in syscall .../
# filter out names which starts with a "."
# such names are used for "function descriptors" on ppc64
# bugzilla 406561
s/in \.__select () at \.\.\/sysdeps\/unix\/syscall-template\.S.*$/in syscall .../
# cleanup some lines for a system call (on ubuntu 10 64 bits)
# (pay attention : there are tab characters there in)
/^[ ]*at \.\.\/sysdeps\/unix\/syscall-template\.S/d
/^[ ]*in \.\.\/sysdeps\/unix\/syscall-template\.S/d
/^[1-9][0-9]*[ ]*\.\.\/sysdeps\/unix\/syscall-template\.S/d
/^[1-9][0-9]*[ ]in *\.\.\/sysdeps\/unix\/syscall-template\.S/d
/^[1-9][0-9]*[ ]T_PSEUDO (SYSCALL_SYMBOL, SYSCALL_NAME, SYSCALL_NARGS)/d
# and yet another (Solaris way) to get a poll system call
# (on 32 bits, we have /lib/libc.so.*, on 64 bits, /lib/64/libc.so.*)
s/in __pollsys () from \/.*$/in syscall .../
/^ from \/lib\/64\/libc.so.*$/d
# which registers can't be modified
s/\(Could not write register \)".*"/\1 "xxx"/
s/\(ERROR changing register \).*$/\1 xxx regno y/
# special transform for arm/ppc watchpoints which have an additional address
# at the beginning
s/0x........ in \(main (argc=1, argv=0x........) at watchpoints.c:[24][3689]\)/\1/
s/0x........ in \(main () at clean_after_fork.c:34\)/\1/
# SIGFPE backtrace is varying so much that we just remove all lines
# after the signal trapping using an expr in this sed, followed by another sed.
s/\(^.*signal SIGFPE.*$\)/\1\nafter trap SIGFPE/
# gdb might also try to show the "entry value" p=p@entry=0x...
s/p=p@entry=0x/p=0x/
# for hgtls the breakpoint p=... address might show var location.
s/\(^Breakpoint 1, tls_ptr (p=0x........\) <tests[0-9+]*>\() at tls.c:55\)/\1\2/
/Id Target Id *Frame/d
s/^\([ \*] [1234] \) *Thread /\1Thread /
# Ordering of ' Thread .... (tid .' might differ between gdb version,
# so remove all such lines except the "current" one (starts with '*').
s/^ [0-9] Thread .... (tid [0-9] .*$//
# transform info thread of 7.3 into the layout of 7.2 and before.
s/VgTs_WaitSys) 0x/VgTs_WaitSys) 0x/
# delete lines telling that some memory can't be accessed: this is
# a.o. produced by gdb 7.2 on arm (same with standard gdbserver)
/Cannot access memory at address 0x......../d
# Filter 'New thread' lines
# gdb 7.9 reports new threads at different moment than the previous versions.
# Filter these new threads lines so as to not be dependent on this
# gdb aspect.
/\[New Thread/d
# 406355
# adjust filtering for the new gdb output
# mcsigpass and mcsignopass tests fails due to the slightly different
# gdb output. Filter the tests output to make it the same for different
# gdb version. Change mcsigpass and mcsignopass .exp to fit filtered
# .out.
s/^0x........ in \(\w\+ (\)/\1/
# delete empty lines (the last line (only made of prompts) sometimes
# finishes with a new line, sometimes not ???).
/^$/d
EOF
dir=`dirname $0`
$dir/filter_stderr |
# Anonymise addresses
$dir/../tests/filter_addresses |
# memcheck stuff
$dir/filter_memcheck_monitor "$@" |
# memcheck filter might leave some "..." lines, we are not interested
sed -e '/^\ \ \ \ \.\.\.$/d' |
# Anonymise or remove, using the big list of PATTERN prepared above
sed -f $PATTERNFILE |
# remove all the lines telling where the SIGFPE was trapped.
sed -e '/after trap SIGFPE/,/after continue SIGFPE/d' |
# join together two lines that gdb 7.1 splits in two (???)
# (in a separate sed, as the below influences the behaviour of the other expressions)
sed -e :a -e '$!N;s/\n at sleepers.c:39/ at sleepers.c:39/;ta' -e 'P;D'
rm $PATTERNFILE
|
