Re: [gentoo-embedded] upgrading to gcc-3.3.6

[Peter S. Mazinger]

On Thu, 22 Sep 2005, Natanael Copa wrote:

> I upgraded to gcc-3.3.6 today and when recompiling the drivers (kernel
> modules in the portage tree) I got some warnings and the modules fails
> to load:
>
>  * Updating module dependencies for 2.6.11-hardened-r15 ...
> WARNING: //lib/modules/2.6.11-hardened-r15/fs/fuse.ko needs unknown
> symbol __sta ck_smash_handler
> WARNING: //lib/modules/2.6.11-hardened-r15/fs/fuse.ko needs unknown
> symbol __gua rd
> WARNING: //lib/modules/2.6.11-hardened-r15/net/wireless/ipw2200.ko needs
> unknown  symbol __stack_smash_handler
> WARNING: //lib/modules/2.6.11-hardened-r15/net/wireless/ipw2200.ko needs
> unknown  symbol __guard
> WARNING:
> //lib/modules/2.6.11-hardened-r15/net/ieee80211/ieee80211_crypt_tkip.ko
> needs unknown symbol __stack_smash_handler
> WARNING:
> //lib/modules/2.6.11-hardened-r15/net/ieee80211/ieee80211_crypt_wep.ko
> needs unknown symbol __stack_smash_handler
> WARNING: //lib/modules/2.6.11-hardened-r15/net/ieee80211/ieee80211.ko
> needs unkn own symbol __stack_smash_handler
> WARNING:
> //lib/modules/2.6.11-hardened-r15/net/ieee80211_crypt_wep-r8180.ko need
> s unknown symbol __stack_smash_handler
> WARNING:
> //lib/modules/2.6.11-hardened-r15/net/ieee80211_crypt_wep-r8180.ko need
> s unknown symbol __guard
> WARNING: //lib/modules/2.6.11-hardened-r15/net/ieee80211_crypt-r8180.ko
> needs un known symbol __stack_smash_handler
> WARNING: //lib/modules/2.6.11-hardened-r15/net/ieee80211_crypt-r8180.ko
> needs un known symbol __guard
> WARNING: //lib/modules/2.6.11-hardened-r15/net/ieee80211-r8180.ko needs
> unknown symbol __stack_smash_handler
> WARNING: //lib/modules/2.6.11-hardened-r15/net/ieee80211-r8180.ko needs
> unknown symbol __guard
> WARNING: //lib/modules/2.6.11-hardened-r15/net/r8180.ko needs unknown
> symbol __s tack_smash_handler
> WARNING: //lib/modules/2.6.11-hardened-r15/net/r8180.ko needs unknown
> symbol __g uard
> WARNING: //lib/modules/2.6.11-hardened-r15/net/rt2500.ko needs unknown
> symbol __ stack_smash_handler
> WARNING: //lib/modules/2.6.11-hardened-r15/net/rt2500.ko needs unknown
> symbol __ guard
> WARNING: //lib/modules/2.6.11-hardened-r15/net/ath_pci.ko needs unknown
> symbol _ _stack_smash_handler
> WARNING: //lib/modules/2.6.11-hardened-r15/net/ath_rate_onoe.ko needs
> unknown sy mbol __stack_smash_handler
> WARNING: //lib/modules/2.6.11-hardened-r15/net/ath_rate_amrr.ko needs
> unknown sy mbol __stack_smash_handler
> WARNING: //lib/modules/2.6.11-hardened-r15/net/wlan_xauth.ko needs
> unknown symbo l __stack_smash_handler
> WARNING: //lib/modules/2.6.11-hardened-r15/net/wlan_wep.ko needs unknown
> symbol __stack_smash_handler
> WARNING: //lib/modules/2.6.11-hardened-r15/net/wlan_tkip.ko needs
> unknown symbol  __stack_smash_handler
> WARNING: //lib/modules/2.6.11-hardened-r15/net/wlan.ko needs unknown
> symbol __st ack_smash_handler
> WARNING: //lib/modules/2.6.11-hardened-r15/net/ath_hal.ko needs unknown
> symbol _ _stack_smash_handler
> WARNING: //lib/modules/2.6.11-hardened-r15/usb/video/spca5xx.ko needs
> unknown sy mbol __stack_smash_handler
> WARNING: //lib/modules/2.6.11-hardened-r15/usb/video/spca5xx.ko needs
> unknown sy mbol
> __guard                                                              [ ok ]
>  * Adding module to moduledb.
> >>> Regenerating /etc/ld.so.cache...
> >>> sys-fs/fuse-2.3.0 merged.
>
> So I guess there is something wrong with my gcc upgrade. I guess I need
> to do a  proper toolchain upgrade?

no, your module build process (Makefiles) does not add -D__KERNEL__ to the 
build, so ssp will be enabled on the built modules (not supported by any 
gentoo kernel).
Nothing in the kernel and module build process is allowed to enable 
-fstack-protector (either by CFLAGS or any other method)
Rebuild one of the above modules and paste your compiler line.

Peter
 
> I have already compiled those (in specified order):
> gcc (3.3.5 -> 3.3.6) uclibc binutils
>
> But it still fails to find the SSP symbols.
> What can I do to fix it? Do I have to recompile the world? (like
> described in http://www.gentoo.org/doc/en/new-upgrade-to-gentoo-1.4.xml)
>
> Are there any shortcuts?
>
>
> # gcc-config -l
>  [1] i386-gentoo-linux-uclibc-3.3.5-20050130-hardened
>  [2] i386-gentoo-linux-uclibc-3.3.6 *
>  [3] i386-gentoo-linux-uclibc-3.3.6-hardenednopie
>  [4] i386-gentoo-linux-uclibc-3.3.6-hardenednopiessp
>  [5] i386-gentoo-linux-uclibc-3.3.6-hardenednossp
>  [6] i386-gentoo-linux-uclibc-3.3.6-vanilla
>
>
> --
> Natanael Copa
>
>

-- 
Peter S. Mazinger <ps dot m at gmx dot net>           ID: 0xA5F059F2
Key fingerprint = 92A4 31E1 56BC 3D5A 2D08  BB6E C389 975E A5F0 59F2

-- 
gentoo-embedded@g.o mailing list