В письме Tuesday 09 December 2008 21:37:10 Vany Serezhkin написал:
> Вообщем всё в аттаче, раскажите, работает ли на линуксе и на amd64 -
> вроде получилось кросплатформенно, правда пока только для интела.
strerror(protcode) надо заменить на strerror(errno), а то диагностика
неправильная получается.
На Linux i686 ошибка:
Unprotect newref failed: Недопустимый аргумент
EINVAL
addr is not a valid pointer, or not a multiple of PAGESIZE.
Все фиксится патчем в аттаче.
Но не работает, однако:
a...@boss:~/tmp/perl$ ./test.pl
/usr/bin/perl: symbol lookup error: ./Refmonitor.so: undefined symbol:
ATOMIC_DEC_AND_TEST
a...@boss:~/tmp/perl$ perl -V
Summary of my perl5 (revision 5 version 10 subversion 0) configuration:
Platform:
osname=linux, osvers=2.6.26-1-686, archname=i486-linux-gnu-thread-multi
uname='linux rebekka 2.6.26-1-686 #1 smp thu oct 9 15:18:09 utc 2008 i686
gnulinux '
config_args='-Dusethreads -Duselargefiles -Dccflags=-DDEBIAN
-Dcccdlflags=-fPIC -Darchname=i486-linux-gnu -Dprefix=/
usr -Dprivlib=/usr/share/perl/5.10 -Darchlib=/usr/lib/perl/5.10
-Dvendorprefix=/usr -Dvendorlib=/usr/share/perl5 -Dvendo
rarch=/usr/lib/perl5 -Dsiteprefix=/usr/local
-Dsitelib=/usr/local/share/perl/5.10.0 -Dsitearch=/usr/local/lib/perl/5.10.
0 -Dman1dir=/usr/share/man/man1 -Dman3dir=/usr/share/man/man3
-Dsiteman1dir=/usr/local/man/man1 -Dsiteman3dir=/usr/local
/man/man3 -Dman1ext=1 -Dman3ext=3perl -Dpager=/usr/bin/sensible-pager -Uafs
-Ud_csh -Ud_ualarm -Uusesfio -Uusenm -DDEBUG
GING=-g -Doptimize=-O2 -Duseshrplib -Dlibperl=libperl.so.5.10.0 -Dd_dosuid -des'
hint=recommended, useposix=true, d_sigaction=define
useithreads=define, usemultiplicity=define
useperlio=define, d_sfio=undef, uselargefiles=define, usesocks=undef
use64bitint=undef, use64bitall=undef, uselongdouble=undef
usemymalloc=n, bincompat5005=undef
Compiler:
cc='cc', ccflags ='-D_REENTRANT -D_GNU_SOURCE -DDEBIAN -fno-strict-aliasing
-pipe -I/usr/local/include -D_LARGEFILE_
SOURCE -D_FILE_OFFSET_BITS=64',
optimize='-O2 -g',
cppflags='-D_REENTRANT -D_GNU_SOURCE -DDEBIAN -fno-strict-aliasing -pipe
-I/usr/local/include'
ccversion='', gccversion='4.3.2', gccosandvers=''
intsize=4, longsize=4, ptrsize=4, doublesize=8, byteorder=1234
d_longlong=define, longlongsize=8, d_longdbl=define, longdblsize=12
ivtype='long', ivsize=4, nvtype='double', nvsize=8, Off_t='off_t',
lseeksize=8
alignbytes=4, prototype=define
Linker and Libraries:
ld='cc', ldflags =' -L/usr/local/lib'
libpth=/usr/local/lib /lib /usr/lib /usr/lib64
libs=-lgdbm -lgdbm_compat -ldb -ldl -lm -lpthread -lc -lcrypt
perllibs=-ldl -lm -lpthread -lc -lcrypt
libc=/lib/libc-2.7.so, so=so, useshrplib=true, libperl=libperl.so.5.10.0
gnulibc_version='2.7'
Dynamic Linking:
dlsrc=dl_dlopen.xs, dlext=so, d_dlsymun=undef, ccdlflags='-Wl,-E'
cccdlflags='-fPIC', lddlflags='-shared -O2 -g -L/usr/local/lib'
Characteristics of this binary (from libperl):
Compile-time options: MULTIPLICITY PERL_DONT_CREATE_GVSV
PERL_IMPLICIT_CONTEXT PERL_MALLOC_WRAP USE_ITHREADS
USE_LARGE_FILES USE_PERLIO USE_REENTRANT_API
Built under linux
Compiled at Nov 1 2008 21:31:06
@INC:
/etc/perl
/usr/local/lib/perl/5.10.0
/usr/local/share/perl/5.10.0
/usr/lib/perl5
/usr/share/perl5
/usr/lib/perl/5.10
/usr/share/perl/5.10
/usr/local/lib/site_perl
.
--
Alexander Lourier, http://aml.rulezz.ru/
11a12,16
> #include <limits.h> /* for PAGESIZE */
> #ifndef PAGESIZE
> #define PAGESIZE 4096
> #endif
>
103,104c108,109
< if(protcode=mprotect(old_Perl_sv_newref, 4096, PROT_READ|PROT_WRITE|PROT_EXEC )) {
< fprintf(stderr, "Unprotect newref failed: %s", strerror(protcode)); exit(1);
---
> if(protcode=mprotect((void*)((((long)old_Perl_sv_newref) / PAGESIZE) * PAGESIZE), 4096, PROT_READ|PROT_WRITE|PROT_EXEC )) {
> fprintf(stderr, "Unprotect newref failed: %s", strerror(errno)); exit(1);
108,109c113,114
< if(protcode=mprotect(old_Perl_sv_free, 4096, PROT_READ|PROT_WRITE|PROT_EXEC )) {
< fprintf(stderr, "Unprotect free failed: %s", strerror(protcode)); exit(1);
---
> if(protcode=mprotect((void*)((((long)old_Perl_sv_free) / PAGESIZE) * PAGESIZE), 4096, PROT_READ|PROT_WRITE|PROT_EXEC )) {
> fprintf(stderr, "Unprotect free failed: %s", strerror(errno)); exit(1);
--
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