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#! /bin/sh
# filter the output of gdb.
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 :
# 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
# then have a general way to delete uninteresting and vayring
# lines.
# suppress lines telling file _exit.c does not exist
# initial tty control character sent by gdb 7.0
# remove missing debuginfos
# vgdb message
# pid numbers
# filter 'remote target killed' messages (produced by gdb >= 8.2)
# Thread numbers
# delete thread switches
# info threads output (e.g. which thread is running and syscall)
# delete Reading symbols file lines
# delete Loaded symbols file lines
# delete language switch messages.
# remove gdb prompts.
# remove gdb continuation prompts.
# remove gdb done prompts.
# a 'general' system calls stack trace part
# a more specialised system call select stack trace part
# (on 32 bits, we have an int_80, on 64 bits, directly select)
# and yet another (gdb 7.0 way) to get a system call
# and yet another (gdb 7.0 arm way) to get a system call
#
# Additions of 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....
#
# and cleanup some lines for a system call (on ubuntu 10 64 bits)
# (pay attention : there are tab characters there in)
# + yet another way to get a select system call
# 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.*)
# which registers can't be modified
# special transform for arm/ppc watchpoints which have an additional address
# at the beginning
# 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.
# transform info thread of 7.3 into the layout of 7.2 and before.
# 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)
# delete empty lines (the last line (only made of prompts) sometimes
# finishes with a new line, sometimes not ???).
# 'exited with code' and 'exited normally' are printed slightly
# differently between gdb versions, normalize to "Program exited...".
# for hgtls the breakpoint p=... address might show var location.
# gdb might also try to show the "entry value" p=p@entry=0x...
# Some gdb versions don't show the source line:number after switching
# threads in #0 0x........ in do_burn ().
# Newer gdb say Thread .... hit Breakpoint, we expect just Breakpoint.
# We expect "Program received" instead of "Thread .... received"
# Ordering of ' Thread .... (tid .' might differ between gdb version,
# so remove all such lines except the "current" one (starts with '*').
sed -e '/Remote debugging using/,/vgdb launched process attached/d' \
-e '/filter_gdb BEGIN drop/,/filter_gdb END drop/d' \
-e 's/^\[?1034hReading symbols/Reading symbols/' \
-e '/^Missing separate debuginfo/d' \
-e '/\/_exit.c: No such file or directory/d' \
-e '/^Try: zypper install -C/d' \
-e '/relaying data between gdb and process/d' \
-e 's/pid [0-9][0-9]*/pid ..../g' \
-e '/(Remote target) killed/d' \
-e 's/Thread [0-9][0-9]*/Thread ..../g' \
-e '/\[Switching to Thread ....\]/d' \
-e 's/\(\[Switching to thread [1234] (Thread ....)\]\)#0/\1\n#0/' \
-e 's/^\([ \* ] [0-9] Thread .... (tid [0-9] VgTs_WaitSys) 0x........ in\).*$/\1 syscall .../' \
-e 's/^Thread .... hit Breakpoint /Breakpoint /' \
-e 's/^Thread .... received /Program received /' \
-e 's/#[0-9]\( 0x........ in sleeper_or_burner\)/#.\1/' \
-e 's/\(#0 0x........ in do_burn ()\) at sleepers.c:41/\1/' \
-e '/^Reading symbols from .*\.\.\.done\./d' \
-e '/^Loaded symbols for .*$/d' \
-e '/^Current language.*/d' \
-e '/^The current source language is.*/d' \
-e 's/^.*\( exited with code [0-9]\+\).$/Program\1\./g' \
-e 's/^.*\( exited normally\).$/Program\1\./g' \
-e 's/(gdb) //g' \
-e 's/^>[> ]*//' \
-e '/^done\.$/d' \
-e 's/in _dl_sysinfo_int80 () from \/lib\/ld-linux.so.*/in syscall .../' \
-e 's/in kill ().*$/in syscall .../' \
-e 's/in .*kill ().*$/in syscall .../' \
-e 's/in _dl_sysinfo_int80 ()/in syscall .../' \
-e '/^ from \/lib\/ld-linux.so.*$/d' \
-e 's/\(0x........\) in ?? () from \/lib.*$/\1 in syscall .../' \
-e 's/\(0x........\) in ?? ()$/\1 in syscall .../' \
-e 's/in __select .*/in syscall .../' \
-e '/exceptfds/d' \
-e '/sysv\/linux\/select\.c/d' \
-e '/return SYSCALL_CANCEL /d' \
-e 's/in \(.__\)\{0,1\}select () from \/.*$/in syscall .../' \
-e '/^ from \/lib\/libc.so.*$/d' \
-e '/^ from \/lib64\/libc.so.*$/d' \
-e '/^ from \/lib64\/.*\/libc.so.*$/d' \
-e 's/in select ()$/in syscall .../' \
-e 's/in \.__select ()$/in syscall .../' \
-e 's/in select () at \.\.\/sysdeps\/unix\/syscall-template\.S.*$/in syscall .../' \
-e '/^[ ]*at \.\.\/sysdeps\/unix\/syscall-template\.S/d' \
-e '/^[ ]*in \.\.\/sysdeps\/unix\/syscall-template\.S/d' \
-e '/^[1-9][0-9]*[ ]*\.\.\/sysdeps\/unix\/syscall-template\.S/d' \
-e '/^[1-9][0-9]*[ ]in *\.\.\/sysdeps\/unix\/syscall-template\.S/d' \
-e '/^[1-9][0-9]*[ ]T_PSEUDO (SYSCALL_SYMBOL, SYSCALL_NAME, SYSCALL_NARGS)/d' \
-e 's/in __pollsys () from \/.*$/in syscall .../' \
-e '/^ from \/lib\/64\/libc.so.*$/d' \
-e 's/\(Could not write register \)".*"/\1 "xxx"/' \
-e 's/\(ERROR changing register \).*$/\1 xxx regno y/' \
-e 's/0x........ in \(main (argc=1, argv=0x........) at watchpoints.c:[24][3689]\)/\1/' \
-e 's/0x........ in \(main () at clean_after_fork.c:34\)/\1/' \
-e 's/\(^.*signal SIGFPE.*$\)/\1\nafter trap SIGFPE/' \
-e 's/p=p@entry=0x/p=0x/' \
-e 's/\(^Breakpoint 1, tls_ptr (p=0x........\) <tests[0-9+]*>\() at tls.c:55\)/\1\2/' \
-e '/Id Target Id *Frame/d' \
-e 's/^\([ \*] [1234] \) *Thread /\1Thread /' \
-e 's/^ [0-9] Thread .... (tid [0-9] .*$//' \
-e 's/VgTs_WaitSys) 0x/VgTs_WaitSys) 0x/' \
-e '/Cannot access memory at address 0x......../d' \
-e '/\[New Thread/d' \
-e '/^$/d' |
# remove all the lines telling where the SIGFPE was trapped.
sed -e '/after trap SIGFPE/,/after continue SIGFPE/d' |
# join together two lines that gdb 7.1 splits in two (???)
# (in a separate sed, as the below influences the behaviour of the other expressions)
sed -e :a -e '$!N;s/\n at sleepers.c:39/ at sleepers.c:39/;ta' -e 'P;D'
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