Hi,
I want to ask: Have the MIPS cross compiler problems be solved? because I meet the same problem. I want to use MIPS ISA to build my work because MIPS is easy to extend for me, however, when I use the codeBench compiler to compile helloworld, there is one panic error: panic: page table fault when accessing virtual address 0. Did anyone meet this problem? or anyone can give me methods to compile MIPS application well? Thank you. Best Liang At 2015-10-23 00:00:01, gem5-users-requ...@gem5.org wrote: >Send gem5-users mailing list submissions to > gem5-users@gem5.org > >To subscribe or unsubscribe via the World Wide Web, visit > http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users >or, via email, send a message with subject or body 'help' to > gem5-users-requ...@gem5.org > >You can reach the person managing the list at > gem5-users-ow...@gem5.org > >When replying, please edit your Subject line so it is more specific >than "Re: Contents of gem5-users digest..." > > >Today's Topics: > > 1. Re: Problem in building cross compiler for MIPS using > crosstools-ng (shinga...@labware.com) > 2. Re: Problem in building cross compiler for MIPS using > crosstools-ng (Andreas Hansson) > > >---------------------------------------------------------------------- > >Message: 1 >Date: Thu, 22 Oct 2015 08:19:22 -0400 >From: shinga...@labware.com >To: gem5 users mailing list <gem5-users@gem5.org> >Subject: Re: [gem5-users] Problem in building cross compiler for MIPS > using crosstools-ng >Message-ID: > <of8f2c74d2.c7554f25-on85257ee6.00085dab-85257ee6.0043b...@labware.com> > >Content-Type: text/plain; charset="utf-8" > >An HTML attachment was scrubbed... >URL: ><http://m5sim.org/cgi-bin/mailman/private/gem5-users/attachments/20151022/d995bcc2/attachment-0001.html> > >------------------------------ > >Message: 2 >Date: Thu, 22 Oct 2015 12:48:52 +0000 >From: Andreas Hansson <andreas.hans...@arm.com> >To: gem5 users mailing list <gem5-users@gem5.org> >Subject: Re: [gem5-users] Problem in building cross compiler for MIPS > using crosstools-ng >Message-ID: <d24e9934.366eb%andreas.hans...@arm.com> >Content-Type: text/plain; charset="utf-8" > >Hi Boris, > >Don’t get me wrong, if someone is happy to fix it that would obviously be >great news. I’m merely cautioning new users. Getting gem5 off the ground with >actual representative workloads is a challenge in itself, even for the >well-maintained and well-supported ISAs. > >Andreas > >From: gem5-users ><gem5-users-boun...@gem5.org<mailto:gem5-users-boun...@gem5.org>> on behalf of >"shinga...@labware.com<mailto:shinga...@labware.com>" ><shinga...@labware.com<mailto:shinga...@labware.com>> >Reply-To: gem5 users mailing list ><gem5-users@gem5.org<mailto:gem5-users@gem5.org>> >Date: Thursday, 22 October 2015 at 13:19 >To: gem5 users mailing list <gem5-users@gem5.org<mailto:gem5-users@gem5.org>> >Subject: Re: [gem5-users] Problem in building cross compiler for MIPS using >crosstools-ng > >Yes, MIPS SE syscall emulation definitely does not work. > >As a trivial experiment, one of the "known good examples" in crosstools-NG is >"mipsel-unknown-linux-gnu". This is with gcc-5.1.0, linux-4.0.4, glibc-2.21. >If you compile "Hello World" with this toolchain, its glibc will try to >complain about "kernel too old" -- fair enough (because the uname syscall >reports kernel 3.0.0), except it can't even get that far, because >arch/mips/linux/linux.hh is missing the definition of struct tgt_iovec. The >way glibc reports a "FATAL" is via the writev() syscall on stderr, at which >point GEM5 crashes because the two 32-bit fields of tgt_iovec in guest memory >are interpreted as one 64-bit "size" member, giving a garbage value. I guess >this is exactly what Will is seeing. > >Ok, let's implement the struct; now writev() works correctly (we can even see >it print "kernel too old"). Recompile the toolchain with >CT_LIBC_GLIBC_MIN_KERNEL_VERSION=2.6.32.66. Do we get very far? No, now we >crash in a page miss shortly after the set_thread_area syscall. And this goes >on and on; a cursory look at just linux.hh reveals other missing pieces. > >So yeah, making SE fully work on MIPS would be a bumpy ride. However, it is >not completely useless. For example, I use it for experiments with a >prototype compiler backend. This is purely ISA, no real program linked with >complex things like glibc; nor do I need syscalls. This works pretty >smoothly, even guest remote debugging. So YMMV. After all, if there is more >people than just myself interested in fixing it, we might just do it -- that's >why it's called open source. > >Boris > >-----"gem5-users" ><gem5-users-boun...@gem5.org<mailto:gem5-users-boun...@gem5.org>> wrote: ----- >To: gem5 users mailing list <gem5-users@gem5.org<mailto:gem5-users@gem5.org>>, >"gem5-us...@m5sim.org<mailto:gem5-us...@m5sim.org>" ><gem5-us...@m5sim.org<mailto:gem5-us...@m5sim.org>> >From: Andreas Hansson >Sent by: "gem5-users" >Date: 10/20/2015 04:08AM >Subject: Re: [gem5-users] Problem in building cross compiler for MIPS using >crosstools-ng > >Hi Will, > >I think the best piece of advice when it comes to MIPS in gem5 is: avoid it. >You are in for a very bumpy ride otherwise. The best-supported ISAs are ARM, >X86 and ALPHA. > >Andreas > >From: gem5-users ><gem5-users-boun...@gem5.org<mailto:gem5-users-boun...@gem5.org>> on behalf of >Will <alpha0...@yeah.net<mailto:alpha0...@yeah.net>> >Reply-To: gem5 users mailing list ><gem5-users@gem5.org<mailto:gem5-users@gem5.org>> >Date: Tuesday, 20 October 2015 at 06:12 >To: "gem5-us...@m5sim.org<mailto:gem5-us...@m5sim.org>" ><gem5-us...@m5sim.org<mailto:gem5-us...@m5sim.org>> >Subject: [gem5-users] Problem in building cross compiler for MIPS using >crosstools-ng > >Hello, > >I have built some cross compilers for MIPS using crosstools-ng, but gem5 >always terminated with error messages below when execute the binary generated >by the cross compiler. >Does someone has any idea about the configuration for MIPS cross compiler >which could work for gem5? > >I would appreciate if some one can shed some light on this. > >Best regards, >Will > >========================================================================== > >$ build/MIPS/gem5.debug configs/example/se.py -c ~/hello >gem5 Simulator System. http://gem5.org >gem5 is copyrighted software; use the --copyright option for details. > >gem5 compiled Oct 16 2015 14:43:56 >gem5 started Oct 20 2015 12:59:38 >gem5 executing on Stormy >command line: build/MIPS/gem5.debug configs/example/se.py -c /home/fkong/hello >Global frequency set at 1000000000000 ticks per second >warn: DRAM device capacity (8192 Mbytes) does not match the address range >assigned (512 Mbytes) >0: system.remote_gdb.listener: listening for remote gdb #0 on port 7000 >**** REAL SIMULATION **** >info: Entering event queue @ 0. Starting simulation... >info: Increasing stack size by one page. >tcmalloc: large alloc 18206143029444608 bytes == (nil) @ 0x7fd0f3fa7126 >0xbfe6ab 0xe921ac 0xe8df87 0xa818c8 0xb38580 0x1540118 0xb36f41 0xb33ca6 >0xe547d6 0xe756fc 0xe7547d 0xc4ab54 0xc4ad10 0x7fd0f5019f43 0x7fd0f501b6b4 >0x7fd0f501a5c6 0x7fd0f501a666 0x7fd0f501a666 0x7fd0f501b6b4 0x7fd0f501b7d9 >0x7fd0f5019ec2 0x7fd0f501b6b4 0x7fd0f501a5c6 0x7fd0f501b6b4 0x7fd0f501b7d9 >0x7fd0f5034bdf 0x7fd0f5035a54 0xe5a684 0xa6350d 0x7fd0f332d790 >terminate called after throwing an instance of 'std::bad_alloc' > what(): std::bad_alloc >Program aborted at cycle 391500 >Aborted (core dumped) > > > > > > >________________________________ > >-- IMPORTANT NOTICE: The contents of this email and any attachments are >confidential and may also be privileged. If you are not the intended >recipient, please notify the sender immediately and do not disclose the >contents to any other person, use it for any purpose, or store or copy the >information in any medium. Thank you. >_______________________________________________ >gem5-users mailing list >gem5-users@gem5.org<mailto:gem5-users@gem5.org> >http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users > >________________________________ > >-- IMPORTANT NOTICE: The contents of this email and any attachments are >confidential and may also be privileged. If you are not the intended >recipient, please notify the sender immediately and do not disclose the >contents to any other person, use it for any purpose, or store or copy the >information in any medium. 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