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Re: PERL_PERTURB_KEYS=2
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From:
hv
Date:
July 28, 2020 22:00
Subject:
Re: PERL_PERTURB_KEYS=2
Message ID:
202007282118.06SLIKP18530@crypt.org
demerphq <demerphq@gmail.com> wrote:
:Can you tell me what PERL_HASH_SEED_DEBUG=1 reports for you?
:
:I have a feeling your perl is built with hadh seed randomization disabled.
% PERL_HASH_SEED_DEBUG=1 /opt/v5.32.0-d/bin/perl -e 1
HASH_FUNCTION = SBOX32_WITH_STADTX HASH_SEED = 0x986401ef56ab149158c74ee4062846bd8b8504d92918d2beaf137d90 PERTURB_KEYS = 1 (RANDOM)
% /opt/v5.32.0-d/bin/perl -V
Summary of my perl5 (revision 5 version 32 subversion 0) configuration:
Commit id: 0cf01644e9e0460386db76c3546d69b15e0806df
Platform:
osname=linux
osvers=5.3.0-51-generic
archname=x86_64-linux
uname='linux zen2 5.3.0-51-generic #44~18.04.2-ubuntu smp thu apr 23 14:27:18 utc 2020 x86_64 x86_64 x86_64 gnulinux '
config_args='-des -Dcc=gcc -Dprefix=/opt/v5.32.0-d -Doptimize=-g -O6 -DDEBUGGING -Dusedevel -Uversiononly'
hint=recommended
useposix=true
d_sigaction=define
useithreads=undef
usemultiplicity=undef
use64bitint=define
use64bitall=define
uselongdouble=undef
usemymalloc=n
default_inc_excludes_dot=define
bincompat5005=undef
Compiler:
cc='gcc'
ccflags ='-fwrapv -DDEBUGGING -fno-strict-aliasing -pipe -fstack-protector-strong -I/usr/local/include -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64'
optimize='-g -O6'
cppflags='-fwrapv -DDEBUGGING -fno-strict-aliasing -pipe -fstack-protector-strong -I/usr/local/include'
ccversion=''
gccversion='7.5.0'
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='gcc'
ldflags =' -fstack-protector-strong -L/usr/local/lib'
libpth=/usr/local/lib /usr/lib/gcc/x86_64-linux-gnu/7/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
libs=-lpthread -lnsl -ldl -lm -lcrypt -lutil -lc
perllibs=-lpthread -lnsl -ldl -lm -lcrypt -lutil -lc
libc=libc-2.27.so
so=so
useshrplib=false
libperl=libperl.a
gnulibc_version='2.27'
Dynamic Linking:
dlsrc=dl_dlopen.xs
dlext=so
d_dlsymun=undef
ccdlflags='-Wl,-E'
cccdlflags='-fPIC'
lddlflags='-shared -g -O6 -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_MALLOC_WRAP
PERL_OP_PARENT
PERL_PRESERVE_IVUV
PERL_USE_DEVEL
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
Built under linux
Compiled at Jun 25 2020 16:54:58
@INC:
/opt/v5.32.0-d/lib/perl5/site_perl/5.32.0/x86_64-linux
/opt/v5.32.0-d/lib/perl5/site_perl/5.32.0
/opt/v5.32.0-d/lib/perl5/5.32.0/x86_64-linux
/opt/v5.32.0-d/lib/perl5/5.32.0
%
Hugo
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