Bug 1296211
| Summary: | SLOF cannot be built on 64bit little endian host | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 7 | Reporter: | Laurent Vivier <lvivier> |
| Component: | gcc | Assignee: | Jakub Jelinek <jakub> |
| Status: | CLOSED ERRATA | QA Contact: | Michael Petlan <mpetlan> |
| Severity: | medium | Docs Contact: | |
| Priority: | unspecified | ||
| Version: | 7.2 | CC: | mcermak, mpetlan, mpolacek, ohudlick |
| Target Milestone: | rc | ||
| Target Release: | --- | ||
| Hardware: | ppc64le | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | gcc-4.8.5-6.el7 | Doc Type: | No Doc Update |
| Doc Text: |
undefined
|
Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | 2016-11-04 06:27:27 UTC | Type: | Bug |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
This stuff got removed in http://gcc.gnu.org/r227397 and has been backported to 5 branch in r228089. test fails with gcc-4.8.5-4.el7.ppc64le test passes for gcc-4.8.5-9.el7.ppc64le VERIFIED Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://rhn.redhat.com/errata/RHBA-2016-2433.html |
Description of problem: SLOF is always built as a big endian target. To be built on a little endian host, SLOF makefile adds "-m64 -mbig" to gcc flags. But the build fails on the link edition: ====== Building slof ====== make -C slof BOARD=qemu PLATFORM= FLAG="-DRTAS_NVRAM -DBROKEN_SC1 -DDHCPARCH=0x0C " TARG=ppc64 RELEASE=-DRELEASE=\"\\\"git-749c50b84b83a9b9\\\"\" make[2]: Entering directory `/home/lvivier/SLOF/board-qemu/slof' gcc -m64 -mbig -mabi=elfv1 -T/home/lvivier/SLOF/slof/OF.lds /home/lvivier/SLOF/slof/ofw.o version.o paflof.o helpers.o allocator.o \ /home/lvivier/SLOF/slof/entry.o romfs.o OF.o nvramlog.o /home/lvivier/SLOF/board-qemu/llfw/board_io.o \ /home/lvivier/SLOF/board-qemu/llfw/io_generic_lib.o -static -nostdlib -Wl,-q,-n /home/lvivier/SLOF/lib/libbootmsg.a /home/lvivier/SLOF/lib/libelf.a /home/lvivier/SLOF/lib/libhvcall.a /home/lvivier/SLOF/lib/libvirtio.a /home/lvivier/SLOF/lib/libusb.a /home/lvivier/SLOF/lib/libnvram.a /home/lvivier/SLOF/lib/libveth.a /home/lvivier/SLOF/lib/libe1k.a /home/lvivier/SLOF/lib/libc.a -o paflof /home/lvivier/SLOF/slof/ofw.o:(.slof.loader+0x5c): undefined reference to `.patch_broken_sc1' $ file /home/lvivier/SLOF/slof/ofw.o /home/lvivier/SLOF/slof/ofw.o: ELF 64-bit MSB relocatable, 64-bit PowerPC or cisco 7500, version 1 (SYSV), not stripped patch_broken_sc1 is in libhvcall: $ nm lib/libhvcall/brokensc1.o|grep patch 0000000000000000 D patch_broken_sc1 $ file lib/libhvcall/brokensc1.o lib/libhvcall/brokensc1.o: ELF 64-bit MSB relocatable, 64-bit PowerPC or cisco 7500, version 1 (SYSV), not stripped Version-Release number of selected component (if applicable): gcc-4.8.5-4.el7.ppc64le binutils-2.23.52.0.1-55.el7.ppc64le How reproducible: 100% Steps to Reproduce: 1. git clone git://git.qemu-project.org/SLOF.git 2. cd SLOF 3. make V=2 qemu Actual results: Error: undefined reference to `.patch_broken_sc1' Expected results: Build slof without error. Additional info: It seems that "gcc" adds "--oformat elf32-powerpc" in case of "-mbig" even if the target is 64bit: *link_target: %{mlittle|mlittle-endian:;mbig|mbig-endian: --oformat elf32-powerpc;mcall-i960-old:;:} If we remove the "-mbig" from the command line, all works fine as ld will use for output format the same as the input format (elf64-powerpc). This can be related to BZ1279172, and this patch should fix this one too: https://bugzilla.redhat.com/attachment.cgi?id=1091247