How to compile perl with DEBUG_LEAKING_SCALARS? - perl

Question

I am trying to install perl with -DDEBUG_LEAKING_SCALARS
perlbrew install perl-5.24.1 -DDEBUGGING -DDEBUG_LEAKING_SCALARS --as perl-debug-5.24.1
but without success:
$ perl -V | perl -MData::Dumper -e 'local $/; $_ = <>; $h{$1} = $2 while /(-(?:DDEBUGGING|DDEBUG_LEAKING_SCALARS))(?:=(.*?))?(?=\s|$)/g; print Dumper \%h'
$VAR1 = {
'-DDEBUGGING' => undef,
'-DDEBUG_LEAKING_SCALARS' => undef
};
kes#work ~/work/projects/github-forks/perl5 $ perl -V
Summary of my perl5 (revision 5 version 24 subversion 1) configuration:
Platform:
osname=linux, osvers=4.4.0-57-generic, archname=x86_64-linux
uname='linux work 4.4.0-57-generic #78-ubuntu smp fri dec 9 23:50:32 utc 2016 x86_64 x86_64 x86_64 gnulinux '
config_args='-de -Dprefix=/home/kes/perl5/perlbrew/perls/perl-debug-5.24.1 -DDEBUGGING -DDEBUG_LEAKING_SCALARS -Aeval:scriptdir=/home/kes/perl5/perlbrew/perls/perl-debug-5.24.1/bin'
hint=recommended, useposix=true, d_sigaction=define
useithreads=undef, usemultiplicity=undef
use64bitint=define, use64bitall=define, uselongdouble=undef
usemymalloc=n, bincompat5005=undef
Compiler:
cc='cc', ccflags ='-fwrapv -DDEBUGGING -fno-strict-aliasing -pipe -fstack-protector-strong -I/usr/local/include -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64',
optimize='-O2 -g',
cppflags='-fwrapv -DDEBUGGING -fno-strict-aliasing -pipe -fstack-protector-strong -I/usr/local/include'
ccversion='', gccversion='5.4.0 20160609', gccosandvers=''
intsize=4, longsize=8, ptrsize=8, doublesize=8, byteorder=12345678, doublekind=3
d_longlong=define, longlongsize=8, d_longdbl=define, longdblsize=16, longdblkind=3
ivtype='long', ivsize=8, nvtype='double', nvsize=8, Off_t='off_t', lseeksize=8
alignbytes=8, prototype=define
Linker and Libraries:
ld='cc', ldflags =' -fstack-protector-strong -L/usr/local/lib'
libpth=/usr/local/lib /usr/lib/gcc/x86_64-linux-gnu/5/include-fixed /usr/include/x86_64-linux-gnu /usr/lib /lib/x86_64-linux-gnu /lib/../lib /usr/lib/x86_64-linux-gnu /usr/lib/../lib /lib /lib64 /usr/lib64
libs=-lpthread -lnsl -ldl -lm -lcrypt -lutil -lc
perllibs=-lpthread -lnsl -ldl -lm -lcrypt -lutil -lc
libc=libc-2.23.so, so=so, useshrplib=false, libperl=libperl.a
gnulibc_version='2.23'
Dynamic Linking:
dlsrc=dl_dlopen.xs, dlext=so, d_dlsymun=undef, ccdlflags='-Wl,-E'
cccdlflags='-fPIC', lddlflags='-shared -O2 -g -L/usr/local/lib -fstack-protector-strong'
Characteristics of this binary (from libperl):
Compile-time options: DEBUGGING HAS_TIMES PERLIO_LAYERS PERL_COPY_ON_WRITE
PERL_DONT_CREATE_GVSV
PERL_HASH_FUNC_ONE_AT_A_TIME_HARD PERL_MALLOC_WRAP
PERL_PRESERVE_IVUV USE_64_BIT_ALL USE_64_BIT_INT
USE_LARGE_FILES USE_LOCALE USE_LOCALE_COLLATE
USE_LOCALE_CTYPE USE_LOCALE_NUMERIC USE_LOCALE_TIME
USE_PERLIO USE_PERL_ATOF
Locally applied patches:
Devel::PatchPerl 1.38
Built under linux
Compiled at Mar 9 2017 15:21:39
%ENV:
PERL5LIB="/home/kes/.perlbrew/libs/perl-debug-5.24.1#debug/lib/perl5"
PERLBREW="command perlbrew"
PERLBREW_BASHRC_VERSION="0.76"
PERLBREW_HOME="/home/kes/.perlbrew"
PERLBREW_LIB="debug"
PERLBREW_MANPATH="/home/kes/.perlbrew/libs/perl-debug-5.24.1#debug/man:/home/kes/perl5/perlbrew/perls/perl-debug-5.24.1/man"
PERLBREW_PATH="/home/kes/.perlbrew/libs/perl-debug-5.24.1#debug/bin:/home/kes/perl5/perlbrew/bin:/home/kes/perl5/perlbrew/perls/perl-debug-5.24.1/bin"
PERLBREW_PERL="perl-debug-5.24.1"
PERLBREW_ROOT="/home/kes/perl5/perlbrew"
PERLBREW_VERSION="0.76"
PERL_LOCAL_LIB_ROOT="/home/kes/.perlbrew/libs/perl-debug-5.24.1#debug"
PERL_MB_OPT="--install_base /home/kes/.perlbrew/libs/perl-debug-5.24.1#debug"
PERL_MM_OPT="INSTALL_BASE=/home/kes/.perlbrew/libs/perl-debug-5.24.1#debug"
#INC:
/home/kes/.perlbrew/libs/perl-debug-5.24.1#debug/lib/perl5/x86_64-linux
/home/kes/.perlbrew/libs/perl-debug-5.24.1#debug/lib/perl5
/home/kes/perl5/perlbrew/perls/perl-debug-5.24.1/lib/site_perl/5.24.1/x86_64-linux
/home/kes/perl5/perlbrew/perls/perl-debug-5.24.1/lib/site_perl/5.24.1
/home/kes/perl5/perlbrew/perls/perl-debug-5.24.1/lib/5.24.1/x86_64-linux
/home/kes/perl5/perlbrew/perls/perl-debug-5.24.1/lib/5.24.1
.
Also this show that perl is not compiled with required option:
$ perl -MConfig::Perl::V -MDDP -E 'p %{ Config::Perl::V::myconfig() }'
{
build {
options {
DEBUGGING 1,
DEBUG_LEAKING_SCALARS 0,
DEBUG_LEAKING_SCALARS_FORK_DUMP 0,
DECCRTL_SOCKETS 0,
FAKE_THREADS 0,
FCRYPT 0,
HAS_TIMES 1,
HAVE_INTERP_INTERN 0,
MULTIPLICITY 0,
MYMALLOC 0,
NO_HASH_SEED 0,
NO_MATHOMS 0,
NO_TAINT_SUPPORT 0,
PERL_BOOL_AS_CHAR 0,
PERL_COPY_ON_WRITE 1,
PERL_DEBUG_READONLY_COW 0,
PERL_DEBUG_READONLY_OPS 0,
PERL_DISABLE_PMC 0,
PERL_DONT_CREATE_GVSV 1,
PERL_EXTERNAL_GLOB 0,
PERL_GLOBAL_STRUCT 0,
PERL_GLOBAL_STRUCT_PRIVATE 0,
PERL_HASH_FUNC_DJB2 0,
PERL_HASH_FUNC_MURMUR3 0,
PERL_HASH_FUNC_ONE_AT_A_TIME 0,
PERL_HASH_FUNC_ONE_AT_A_TIME_HARD 1,
PERL_HASH_FUNC_ONE_AT_A_TIME_OLD 0,
PERL_HASH_FUNC_SDBM 0,
PERL_HASH_FUNC_SIPHASH 0,
PERL_HASH_FUNC_SUPERFAST 0,
PERL_IMPLICIT_CONTEXT 0,
PERL_IMPLICIT_SYS 0,
PERLIO_LAYERS 1,
PERL_IS_MINIPERL 0,
PERL_MAD 0,
PERL_MALLOC_WRAP 1,
PERL_MEM_LOG 0,
PERL_MEM_LOG_ENV 0,
PERL_MEM_LOG_ENV_FD 0,
PERL_MEM_LOG_NOIMPL 0,
PERL_MEM_LOG_STDERR 0,
PERL_MEM_LOG_TIMESTAMP 0,
PERL_MICRO 0,
PERL_NEED_APPCTX 0,
PERL_NEED_TIMESBASE 0,
PERL_NEW_COPY_ON_WRITE 0,
PERL_OLD_COPY_ON_WRITE 0,
PERL_PERTURB_KEYS_DETERMINISTIC 0,
PERL_PERTURB_KEYS_DISABLED 0,
PERL_PERTURB_KEYS_RANDOM 0,
PERL_POISON 0,
PERL_PRESERVE_IVUV 1,
PERL_RELOCATABLE_INCPUSH 0,
PERL_SAWAMPERSAND 0,
PERL_TRACK_MEMPOOL 0,
PERL_USE_DEVEL 0,
PERL_USE_SAFE_PUTENV 0,
PERL_USES_PL_PIDSTATUS 0,
PL_OP_SLAB_ALLOC 0,
THREADS_HAVE_PIDS 0,
UNLINK_ALL_VERSIONS 0,
USE_ATTRIBUTES_FOR_PERLIO 0,
USE_FAST_STDIO 0,
USE_HASH_SEED_EXPLICIT 0,
USE_IEEE 0,
USE_ITHREADS 0,
USE_LARGE_FILES 1,
USE_LOCALE 1,
USE_LOCALE_COLLATE 1,
USE_LOCALE_CTYPE 1,
USE_LOCALE_NUMERIC 1,
USE_LOCALE_TIME 1,
USE_LONG_DOUBLE 0,
USE_NO_REGISTRY 0,
USE_PERL_ATOF 1,
USE_PERLIO 1,
USE_QUADMATH 0,
USE_REENTRANT_API 0,
USE_SFIO 0,
USE_SITECUSTOMIZE 0,
USE_SOCKS 0,
USE_64_BIT_ALL 1,
USE_64_BIT_INT 1,
VMS_DO_SOCKETS 0,
VMS_SHORTEN_LONG_SYMBOLS 0,
VMS_SYMBOL_CASE_AS_IS 0
},
osname "linux",
patches [
[0] "Devel::PatchPerl 1.38"
],
stamp "Mar 9 2017 15:21:39"
},
config {
alignbytes 8,
api_subversion 0,
api_version 24,
api_versionstring "5.24.0",
archlibexp "/home/kes/perl5/perlbrew/perls/perl-debug-5.24.1/lib/5.24.1/x86_64-linux",
archname "x86_64-linux",
bincompat5005 undef,
byteorder 12345678,
cc "cc",
cccdlflags "-fPIC",
ccdlflags "-Wl,-E",
ccflags "-fwrapv -DDEBUGGING -fno-strict-aliasing -pipe -fstack-protector-strong -I/usr/local/include -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64",
ccversion "",
config_args "-de -Dprefix=/home/kes/perl5/perlbrew/perls/perl-debug-5.24.1 -DDEBUGGING -DDEBUG_LEAKING_SCALARS -Aeval:scriptdir=/home/kes/perl5/perlbrew/perls/perl-debug-5.24.1/bin",
cppflags "-fwrapv -DDEBUGGING -fno-strict-aliasing -pipe -fstack-protector-strong -I/usr/local/include",
d_dlsymun undef,
dlext "so",
d_longdbl "define",
d_longlong "define",
dlsrc "dl_dlopen.xs",
dont_use_nlink undef,
doublesize 8,
d_readlink "define",
d_sfio undef,
d_sigaction "define",
d_symlink "define",
exe_ext "",
gccosandvers "",
gccversion "5.4.0 20160609",
git_branch "",
git_commit_id "",
git_commit_id_title "",
git_describe "",
git_snapshot_date undef,
git_uncommitted_changes "",
gnulibc_version 2.23,
hint "recommended",
inc_version_list " ",
intsize 4,
ivsize 8,
ivtype "long",
ld "cc",
lddlflags "-shared -O2 -g -L/usr/local/lib -fstack-protector-strong",
ldflags " -fstack-protector-strong -L/usr/local/lib",
ldlibpthname "LD_LIBRARY_PATH",
libc "libc-2.23.so",
libperl "libperl.a",
libpth "/usr/local/lib /usr/lib/gcc/x86_64-linux-gnu/5/include-fixed /usr/include/x86_64-linux-gnu /usr/lib /lib/x86_64-linux-gnu /lib/../lib /usr/lib/x86_64-linux-gnu /usr/lib/../lib /lib /lib64 /usr/lib64",
libs "-lpthread -lnsl -ldl -lm -lcrypt -lutil -lc",
longdblsize 16,
longlongsize 8,
longsize 8,
lseeksize 8,
lseektype "off_t",
myuname "linux work 4.4.0-57-generic #78-ubuntu smp fri dec 9 23:50:32 utc 2016 x86_64 x86_64 x86_64 gnulinux ",
nvsize 8,
nvtype "double",
optimize "-O2 -g",
osname "linux",
osvers "4.4.0-57-generic",
package "perl5",
patchlevel 24,
path_sep ":",
perllibs "-lpthread -lnsl -ldl -lm -lcrypt -lutil -lc",
perl_patchlevel "",
privlibexp "/home/kes/perl5/perlbrew/perls/perl-debug-5.24.1/lib/5.24.1",
prototype "define",
ptrsize 8,
revision 5,
scriptdir "/home/kes/perl5/perlbrew/perls/perl-debug-5.24.1/bin",
sitearchexp "/home/kes/perl5/perlbrew/perls/perl-debug-5.24.1/lib/site_perl/5.24.1/x86_64-linux",
sitelibexp "/home/kes/perl5/perlbrew/perls/perl-debug-5.24.1/lib/site_perl/5.24.1",
so "so",
subversion 1,
useithreads undef,
uselargefiles "define",
uselongdouble undef,
usemultiplicity undef,
usemymalloc "n",
useperlio "define",
useposix "true",
useshrplib "false",
usesocks undef,
usevendorprefix undef,
use64bitall "define",
use64bitint "define",
version "5.24.1",
version_patchlevel_string "version 24 subversion 1"
},
derived {
Off_t "off_t",
patch "",
uname "linux work 4.4.0-57-generic #78-ubuntu smp fri dec 9 23:50:32 utc 2016 x86_64 x86_64 x86_64 gnulinux "
},
environment {
PERLBREW "command perlbrew",
PERLBREW_BASHRC_VERSION 0.76,
PERLBREW_HOME "/home/kes/.perlbrew",
PERLBREW_LIB "debug",
PERLBREW_MANPATH "/home/kes/.perlbrew/libs/perl-debug-5.24.1#debug/man:/home/kes/perl5/perlbrew/perls/perl-debug-5.24.1/man",
PERLBREW_PATH "/home/kes/.perlbrew/libs/perl-debug-5.24.1#debug/bin:/home/kes/perl5/perlbrew/bin:/home/kes/perl5/perlbrew/perls/perl-debug-5.24.1/bin",
PERLBREW_PERL "perl-debug-5.24.1",
PERLBREW_ROOT "/home/kes/perl5/perlbrew",
PERLBREW_VERSION 0.76,
PERL_LOCAL_LIB_ROOT "/home/kes/.perlbrew/libs/perl-debug-5.24.1#debug",
PERL_MB_OPT "--install_base /home/kes/.perlbrew/libs/perl-debug-5.24.1#debug",
PERL_MM_OPT "INSTALL_BASE=/home/kes/.perlbrew/libs/perl-debug-5.24.1#debug",
PERL5LIB "/home/kes/.perlbrew/libs/perl-debug-5.24.1#debug/lib/perl5"
},
inc [
[0] "/home/kes/.perlbrew/libs/perl-debug-5.24.1#debug/lib/perl5/x86_64-linux",
[1] "/home/kes/.perlbrew/libs/perl-debug-5.24.1#debug/lib/perl5",
[2] "/home/kes/perl5/perlbrew/perls/perl-debug-5.24.1/lib/site_perl/5.24.1/x86_64-linux",
[3] "/home/kes/perl5/perlbrew/perls/perl-debug-5.24.1/lib/site_perl/5.24.1",
[4] "/home/kes/perl5/perlbrew/perls/perl-debug-5.24.1/lib/5.24.1/x86_64-linux",
[5] "/home/kes/perl5/perlbrew/perls/perl-debug-5.24.1/lib/5.24.1",
[6] "."
]
}
How to compile perl with DEBUG_LEAKING_SCALARS?

Answer 1

The doc has error. To compile perl with this option on you should use next command:
perlbrew install perl-5.24.1 -DDEBUGGING -Accflags=-DDEBUG_LEAKING_SCALARS -j9 --as perl-debug-5.24.1
I have found this info from this commit
UPD
DOC was fixed at commit #b49862865 by David Mitchell. Thanks