My understanding was that gem5 uses libelf to read the segments of the program, which correctly identifies the program header table, entry point, and data, text, and bss segments (among other things). Are you saying that the test scripts cause it to do something different?
On Wed, Sep 6, 2017 at 5:35 AM, Gabe Black <[email protected]> wrote: > The loader is using the readBlob function of the SE translating port proxy > which converts a virtual address into a physical one before sending out the > request. It's being fed the address 0, and that, as you might expect, > doesn't map to anything. It gets that address from where the ELF loader > tells it the ELF program header table is. The reason it thinks it's at > address 0 is that it didn't actually find an address for it, since the > program header isn't mapped into the only loadable segment. That segment > starts at file offset 0x1000, but the ELF program header starts at offset > 64 (maybe in hex?). That's a little unusual because in my experience the > linker likes to put the headers in a loadable segment, but that's what's on > zizzer right now. > > So basically, I would totally expect it to fail, and I'm surprised that it > works for you guys at all unless you're using binaries which are different > and have the headers within the loadable segment. I looked specifically at > hello world. > > Gabe > > On Tue, Sep 5, 2017 at 4:43 PM, Jason Lowe-Power <[email protected]> > wrote: > > > Hi Alec, > > > > The binaries seem to be up-to-date. They are what is in the gem5 repo as > of > > Sept. 3. The error is "fatal: readBlob(0x0, ...) failed". > > > > If I run the test without the test script, it works. If I run the test on > > my local machine it works. The only thing that's failing is running the > > test with the test scripts on zizzer. > > > > Anyone else have an idea? > > > > Jason > > > > On Wed, Aug 30, 2017 at 2:55 PM Jason Lowe-Power <[email protected]> > > wrote: > > > > > I'm not sure. I can look into it, but I'm not sure when I'll get the > > > chance. I'll try to do it in the next week or so. If I haven't gotten > to > > it > > > by 9/11, send me another email reminder ;). > > > > > > Jason > > > > > > On Wed, Aug 30, 2017 at 11:24 AM Alec Roelke <[email protected]> > wrote: > > > > > >> Hi Everyone, > > >> > > >> I've noticed that all of the RISC-V regression tests have been failing > > >> every day. They all pass when I run them on my machine with the > latest > > >> gem5. Is the machine running the regressions running the correct > > >> binaries? > > >> > > >> Thanks, > > >> Alec Roelke > > >> _______________________________________________ > > >> gem5-dev mailing list > > >> [email protected] > > >> http://m5sim.org/mailman/listinfo/gem5-dev > > > > > > > > _______________________________________________ > > gem5-dev mailing list > > [email protected] > > http://m5sim.org/mailman/listinfo/gem5-dev > > > _______________________________________________ > gem5-dev mailing list > [email protected] > http://m5sim.org/mailman/listinfo/gem5-dev > _______________________________________________ gem5-dev mailing list [email protected] http://m5sim.org/mailman/listinfo/gem5-dev
