On Daniel Jacobowitz's suggestion, I tried the Code Sourcery GNU toolchain for Coldfire version 4.2 lite edition located at:
http://www.codesourcery.com/gnu_toolchains/coldfire After fixing several bugs (due to incompatibilities with the newer toolchain), I was able to startup uClinux with shared libraries. Jate Sujjavanich Syn-tech Systems -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of David McCullough Sent: Monday, July 30, 2007 8:55 PM To: uClinux development list Subject: Re: [uClinux-dev] Shared library issues on m68knommu and gcc 4.1.1 Jivin [EMAIL PROTECTED] lays it down ... > > I am getting the "lib 0 younger than lib 1" in the relocation code > > for the reloc table for uClibc (shared lib 1). The code works until > > it reaches a value of "0x00000001" which is interpreted as address 1 > > in library 0. Library 0 is younger than 1, as it should be. > > I understand now. > > > > Some of my theories are as follows. Maybe the linker is inserting a > > 0x00000001 into the reloc table when it shouldn't be. Or maybe it > > should be, and 0x00000001 is a new flag in the newer toolchain. > > It certainly has the feel of a tool chain flag. I have a vague > recollection of such being used in the constructor/destructor chains. > > What if you modify the kernel relocator to stop on these values? (are > there legitimate relocations *after* them?) > > Or skip them? > > Does the program then work? > > I don't see how 0x00000001 can be a legitimate relocation address. > Code is word aligned and that definitely points into code space. I > don't remember relocations less than 32 bit being needed on the ColdFire. Could be the constructore or destructor count, there is usually only one in a normal app. Check that you elf2flt.ld has the correct CTORS/DTORS constructs and that there is not padding getting inserted between symbols etc. > > Let me know if this rings any bells. > > It doesn't :-( > > There were some weird zero values near the start of the GOT that I never figured out but I thought I'd dealt with the relocations properly. Cheers, Davidm -- David McCullough, [EMAIL PROTECTED], Ph:+61 734352815 Secure Computing - SnapGear http://www.uCdot.org http://www.cyberguard.com _______________________________________________ uClinux-dev mailing list uClinux-dev@uclinux.org http://mailman.uclinux.org/mailman/listinfo/uclinux-dev This message was resent by uclinux-dev@uclinux.org To unsubscribe see: http://mailman.uclinux.org/mailman/options/uclinux-dev ************************************************************************ ************ This footnote confirms that this email message has been scanned by PineApp Mail-SeCure for the presence of malicious code, vandals & computer viruses. ************************************************************************ ************ _______________________________________________ uClinux-dev mailing list uClinux-dev@uclinux.org http://mailman.uclinux.org/mailman/listinfo/uclinux-dev This message was resent by uclinux-dev@uclinux.org To unsubscribe see: http://mailman.uclinux.org/mailman/options/uclinux-dev
