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RE: modprobe: Unknown symbol on 2.6.xx
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From: Warren W. <wip...@ho...> - 2006-03-02 10:18:18
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Well, I managed to lose a few errors. Adding -fno-stack-protector was the thing to do. Exporting it in CFLAGS wasn't cutting it, so I manually added it to LIRC_EXTRA_FLAGS in drivers/lirc_dev/Makefile.in and drivers/lirc_serial/Makefile.in. Then I ran configure. After that I noticed that I had serial support in my kernel, so I removed it. The modules lirc_serial and lirc_dev still cannot be loaded though, there are still missing symbols. Luckily these seem to be non hardened source related, so I am getting on track at least. (lirc_register_plugin, lirc_unregister_plugin and Global_offset_table) I am wondering though whether I need the module, if serial support can exist in the kernel. I read something about using setserial in a boot time script, so /dev/ttySx would be set properly. Gonna try it all. :-) Warren > >I am now leaning towards wrong CFLAGS. I have tried adding a few to the >drivers/serial/Makefile variable CFLAGS, but when I look at the gcc or make >statements during the make phase, I am not seeing the additions. >What I want to add is: >-fstack-protector-all and for the sake of it; -pie -fpie. >These are not showing up. > >/**********/ > >make[3]: Entering directory `/usr/src/lirc/lirc-0.8.0/drivers/lirc_serial' >mv Makefile Makefile.automake >cp ../Makefile.kernel Makefile >make -C /lib/modules/2.6.14.6-grsec/build/ >SUBDIRS=/usr/src/lirc/lirc-0.8.0/drivers/lirc_serial modules \ > KBUILD_VERBOSE=1 >make[4]: Entering directory `/usr/src/kernel/linux-2.6.14.6' >mkdir -p /usr/src/lirc/lirc-0.8.0/drivers/lirc_serial/.tmp_versions >make -f scripts/Makefile.build >obj=/usr/src/lirc/lirc-0.8.0/drivers/lirc_serial > gcc -m32 >-Wp,-MD,/usr/src/lirc/lirc-0.8.0/drivers/lirc_serial/.lirc_serial.o.d >-nostdinc -isystem /usr/lib/gcc/i686-pc-linux-gnu/3.4.5/include >-D__KERNEL__ -Iinclude -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs >-fno-strict-aliasing -fno-common -ffreestanding -O2 >-fomit-frame-pointer -pipe -msoft-float -mpreferred-stack-boundary=2 >-fno-unit-at-a-time -march=c3-2 -Iinclude/asm-i386/mach-default >-Wdeclaration-after-statement -DIRCTL_DEV_MAJOR=61 -DEXPORT_SYMTAB >-DHAVE_CONFIG_H -I. -I. -I../.. >-I/usr/src/lirc/lirc-0.8.0/drivers/lirc_serial/../.. >-I/lib/modules/2.6.14.6-grsec/build//include/ -DMODULE >-DKBUILD_BASENAME=lirc_serial -DKBUILD_MODNAME=lirc_serial -c -o >/usr/src/lirc/lirc-0.8.0/drivers/lirc_serial/lirc_serial.o >/usr/src/lirc/lirc-0.8.0/drivers/lirc_serial/lirc_serial.c > Building modules, stage 2. >make -rR -f /usr/src/kernel/linux-2.6.14.6/scripts/Makefile.modpost > scripts/mod/modpost -i /usr/src/kernel/linux-2.6.14.6/Module.symvers >vmlinux /usr/src/lirc/lirc-0.8.0/drivers/lirc_serial/lirc_serial.o > gcc -m32 >-Wp,-MD,/usr/src/lirc/lirc-0.8.0/drivers/lirc_serial/.lirc_serial.mod.o.d >-nostdinc -isystem /usr/lib/gcc/i686-pc-linux-gnu/3.4.5/include >-D__KERNEL__ -Iinclude -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs >-fno-strict-aliasing -fno-common -ffreestanding -O2 >-fomit-frame-pointer -pipe -msoft-float -mpreferred-stack-boundary=2 >-fno-unit-at-a-time -march=c3-2 -Iinclude/asm-i386/mach-default >-Wdeclaration-after-statement -DKBUILD_BASENAME=lirc_serial >-DKBUILD_MODNAME=lirc_serial -DMODULE -c -o >/usr/src/lirc/lirc-0.8.0/drivers/lirc_serial/lirc_serial.mod.o >/usr/src/lirc/lirc-0.8.0/drivers/lirc_serial/lirc_serial.mod.c > ld -m elf_i386 -m elf_i386 -r -o >/usr/src/lirc/lirc-0.8.0/drivers/lirc_serial/lirc_serial.ko >/usr/src/lirc/lirc-0.8.0/drivers/lirc_serial/lirc_serial.o >/usr/src/lirc/lirc-0.8.0/drivers/lirc_serial/lirc_serial.mod.o >make[4]: Leaving directory `/usr/src/kernel/linux-2.6.14.6' >mv Makefile.automake Makefile >make[3]: Leaving directory `/usr/src/lirc/lirc-0.8.0/drivers/lirc_serial' > >/*********/ > >I can also tell because of these build warnings: > >*** Warning: "lirc_unregister_plugin" >[/usr/src/lirc/lirc-0.8.0/drivers/lirc_serial/lirc_serial.ko] undefined! >*** Warning: "lirc_register_plugin" >[/usr/src/lirc/lirc-0.8.0/drivers/lirc_serial/lirc_serial.ko] undefined! >*** Warning: "__guard" >[/usr/src/lirc/lirc-0.8.0/drivers/lirc_serial/lirc_serial.ko] undefined! >*** Warning: "__stack_smash_handler" >[/usr/src/lirc/lirc-0.8.0/drivers/lirc_serial/lirc_serial.ko] undefined! > >I don't know how I can add my CFLAGS to the Makefile's, ...if that is the >proper thing to do right now. I have them exported already, but they're not >being taken in. > >Warren > >>From: tony <to...@tg...> >>To: lir...@li... >>Subject: RE: modprobe: Unknown symbol on 2.6.xx >>Date: Mon, 27 Feb 2006 17:28:45 +0100 >> >>Le lundi 27 février 2006 à 16:20 +0000, Warren Wilder a écrit : >> > Getting back to my own message. The directory in the Makefile is >>pointing >> > towards my kernel source as it should. It doesn't matter though, I keep >> > getting unresolved symbols. The running kernel, kernel source, config >>file >> > and module sources are all from the same version. >> >>I just gave up and installed rpms when I went through all these >>problems. >> >>Now I am back to my remote not talking to lircd... If I find which kid >>took the batteries out of the remote I'll cut off his pocket money for 3 >>months</joke> >> >>Tony >> >> >> >>------------------------------------------------------- >>This SF.Net email is sponsored by xPML, a groundbreaking scripting >>language >>that extends applications into web and mobile media. Attend the live >>webcast >>and join the prime developer group breaking into this new coding >>territory! >>http://sel.as-us.falkag.net/sel?cmd=lnk&kid0944&bid$1720&dat1642 > >_________________________________________________________________ >FREE pop-up blocking with the new MSN Toolbar get it now! >http://toolbar.msn.click-url.com/go/onm00200415ave/direct/01/ > > > >------------------------------------------------------- >This SF.Net email is sponsored by xPML, a groundbreaking scripting language >that extends applications into web and mobile media. Attend the live >webcast >and join the prime developer group breaking into this new coding territory! >http://sel.as-us.falkag.net/sel?cmd=lnk&kid=110944&bid=241720&dat=121642 _________________________________________________________________ Express yourself instantly with MSN Messenger! Download today - it's FREE! http://messenger.msn.click-url.com/go/onm00200471ave/direct/01/ |