Date: Fri, 20 Aug 1999 03:28:06 +0100 (BST) From: Doug Rabson <dfr@nlsystems.com> To: Andrew Gallatin <gallatin@cs.duke.edu> Cc: current@FreeBSD.ORG, alpha@FreeBSD.ORG Subject: Re: cc -O broken in -current for Alpha KLDs Message-ID: <Pine.BSF.4.10.9908200325390.72739-100000@salmon.nlsystems.com> In-Reply-To: <14268.1961.256187.86499@grasshopper.cs.duke.edu>
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On Thu, 19 Aug 1999, Andrew Gallatin wrote: > > I do most of my development on alphas & I just turned some local code > into a loadable kernel module. It works fine when compiled into the > kernel statically, but fails miserably when loaded into an alpha > kernel as a module. This alpha is running -current from monday or > so. > > After a day or so of debugging, I decided to run > it on an x86 -- it ran just fine. I've narrowed the problem down to > one involving optimization and have extracted a simple, reproducable > test case. > > When the test module is loaded without optimization (CFLAGS += -g > -O0), it prints the following (which is correct): It looks like we aren't handling the relocations correctly. When I get a chance, I will try to look at it. If you want to have another look, the code at fault is probably in alpha/alpha/elf_machdep.c and you can get a list of relocations in the module with 'objdump --dynamic-reloc foo.ko'. -- Doug Rabson Mail: dfr@nlsystems.com Nonlinear Systems Ltd. Phone: +44 181 442 9037 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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