[Buildroot] [Bug 10276] New: BR2_PACKAGE_LINUX_TOOLS_GPIO fails for MIPS with "gpio-hammer.o: ABI is incompatible with that of the selected emulation"

[Buildroot] [Bug 10276] New: BR2_PACKAGE_LINUX_TOOLS_GPIO fails for MIPS with "gpio-hammer.o: ABI is incompatible with that of the selected emulation"

[bugzilla at busybox.net]

https://bugs.busybox.net/show_bug.cgi?id=10276

            Bug ID: 10276
           Summary: BR2_PACKAGE_LINUX_TOOLS_GPIO fails for MIPS with
                    "gpio-hammer.o: ABI is incompatible with that of the
                    selected emulation"
           Product: buildroot
           Version: 2017.05.1
          Hardware: All
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P5
         Component: Other
          Assignee: unassigned at buildroot.uclibc.org
          Reporter: ciro.santilli at gmail.com
                CC: buildroot at uclibc.org
  Target Milestone: ---

Ubuntu 16.04 host:

```
git checkout bc4f5598dccc191a1e2c6268fdcef1935e2fa212
make qemu_mips64r6_malta_defconfig
echo '
BR2_PACKAGE_LINUX_TOOLS=y
BR2_PACKAGE_LINUX_TOOLS_GPIO=y
' >> .config
env -u LD_LIBRARY_PATH time make BR2_JLEVEL=14
```

error log:

  DESCEND  gpio
mkdir -p include/linux 2>&1 || true
ln -sf
/data/git/buildroot/output/build/linux-4.11.3/tools/gpio/../../include/uapi/linux/gpio.h
include/linux/gpio.h
  CC       gpio-event-mon.o
  CC       gpio-hammer.o
  CC       lsgpio.o
  CC       gpio-utils.o
  CC       gpio-utils.o
  CC       gpio-utils.o
  LD       gpio-event-mon-in.o
gpio-utils.o: file not recognized: File truncated
/data/git/buildroot/output/build/linux-4.11.3/tools/build/Makefile.build:149:
recipe for target 'gpio-event-mon-in.o' failed
make[4]: *** [gpio-event-mon-in.o] Error 1
Makefile:58: recipe for target 'gpio-event-mon-in.o' failed
make[3]: *** [gpio-event-mon-in.o] Error 2
make[3]: *** Waiting for unfinished jobs....
  LD       gpio-hammer-in.o
/data/git/buildroot/output/host/bin/mips64-buildroot-linux-uclibc-ld:
gpio-hammer.o: ABI is incompatible with that of the selected emulation
/data/git/buildroot/output/host/bin/mips64-buildroot-linux-uclibc-ld: failed to
merge target specific data of file gpio-hammer.o
/data/git/buildroot/output/host/bin/mips64-buildroot-linux-uclibc-ld:
gpio-utils.o: ABI is incompatible with that of the selected emulation
/data/git/buildroot/output/host/bin/mips64-buildroot-linux-uclibc-ld: failed to
merge target specific data of file gpio-utils.o
/data/git/buildroot/output/host/bin/mips64-buildroot-linux-uclibc-ld: Attempt
to do relocatable link with elf64-tradbigmips input and elf32-ntradbigmips
output
/data/git/buildroot/output/host/bin/mips64-buildroot-linux-uclibc-ld:
gpio-hammer.o: file class ELFCLASS64 incompatible with ELFCLASS32
/data/git/buildroot/output/host/bin/mips64-buildroot-linux-uclibc-ld: final
link failed: File in wrong format
/data/git/buildroot/output/build/linux-4.11.3/tools/build/Makefile.build:149:
recipe for target 'gpio-hammer-in.o' failed
make[4]: *** [gpio-hammer-in.o] Error 1
Makefile:49: recipe for target 'gpio-hammer-in.o' failed
make[3]: *** [gpio-hammer-in.o] Error 2
  LD       lsgpio-in.o
/data/git/buildroot/output/host/bin/mips64-buildroot-linux-uclibc-ld: lsgpio.o:
ABI is incompatible with that of the selected emulation
/data/git/buildroot/output/host/bin/mips64-buildroot-linux-uclibc-ld: failed to
merge target specific data of file lsgpio.o
/data/git/buildroot/output/host/bin/mips64-buildroot-linux-uclibc-ld:
gpio-utils.o: ABI is incompatible with that of the selected emulation
/data/git/buildroot/output/host/bin/mips64-buildroot-linux-uclibc-ld: failed to
merge target specific data of file gpio-utils.o
/data/git/buildroot/output/host/bin/mips64-buildroot-linux-uclibc-ld: Attempt
to do relocatable link with elf64-tradbigmips input and elf32-ntradbigmips
output
/data/git/buildroot/output/host/bin/mips64-buildroot-linux-uclibc-ld: lsgpio.o:
file class ELFCLASS64 incompatible with ELFCLASS32
/data/git/buildroot/output/host/bin/mips64-buildroot-linux-uclibc-ld: final
link failed: File in wrong format
/data/git/buildroot/output/build/linux-4.11.3/tools/build/Makefile.build:149:
recipe for target 'lsgpio-in.o' failed
make[4]: *** [lsgpio-in.o] Error 1
Makefile:40: recipe for target 'lsgpio-in.o' failed
make[3]: *** [lsgpio-in.o] Error 2
Makefile:61: recipe for target 'gpio' failed
make[2]: *** [gpio] Error 2
package/pkg-generic.mk:227: recipe for target
'/data/git/buildroot/output/build/linux-tools/.stamp_built' failed
make[1]: *** [/data/git/buildroot/output/build/linux-tools/.stamp_built] Error
2
Makefile:79: recipe for target '_all' failed
make: *** [_all] Error 2

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[Buildroot] [Bug 10276] BR2_PACKAGE_LINUX_TOOLS_GPIO fails for MIPS with "gpio-hammer.o: ABI is incompatible with that of the selected emulation"

[bugzilla at busybox.net]

https://bugs.busybox.net/show_bug.cgi?id=10276

--- Comment #1 from Thomas Petazzoni <thomas.petazzoni@free-electrons.com> ---
Could you try to adapt https://patchwork.ozlabs.org/patch/729154/ to the gpio
linux-tools package, and see if it works for you ?

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[Buildroot] [Bug 10276] BR2_PACKAGE_LINUX_TOOLS_GPIO fails for MIPS with "gpio-hammer.o: ABI is incompatible with that of the selected emulation"

[bugzilla at busybox.net]

https://bugs.busybox.net/show_bug.cgi?id=10276

Yann E. MORIN <yann.morin.1998@free.fr> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Assignee|unassigned at buildroot.uclibc |yann.morin.1998 at free.fr
                   |.org                        |
             Status|NEW                         |ASSIGNED
                 CC|                            |yann.morin.1998 at free.fr

--- Comment #2 from Yann E. MORIN <yann.morin.1998@free.fr> ---
Given the following:

      CC       gpio-utils.o
      LD       gpio-event-mon-in.o
    gpio-utils.o: file not recognized: File truncated
    /data/git/buildroot/output/build/linux-4.11.3/tools/build/Make
    file.build:149: recipe for target 'gpio-event-mon-in.o' failed

it looks like it might be a parallel build issue, where gpio-event-mon-in.o
needs gpio-utils.o, but it is not yet built.

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[Buildroot] [Bug 10276] BR2_PACKAGE_LINUX_TOOLS_GPIO fails for MIPS with "gpio-hammer.o: ABI is incompatible with that of the selected emulation"

[bugzilla at busybox.net]

https://bugs.busybox.net/show_bug.cgi?id=10276

--- Comment #3 from Thomas Petazzoni <thomas.petazzoni@free-electrons.com> ---
Well, I'm pretty sure its the issue fixed for perf by
https://patchwork.ozlabs.org/patch/729154/. When ld is used directly for
linking, it needs to be explicitly told the endianness.

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[Buildroot] [Bug 10276] BR2_PACKAGE_LINUX_TOOLS_GPIO fails for MIPS with "gpio-hammer.o: ABI is incompatible with that of the selected emulation"

[bugzilla at busybox.net]

https://bugs.busybox.net/show_bug.cgi?id=10276

--- Comment #4 from Yann E. MORIN <yann.morin.1998@free.fr> ---
Thomas, I can very easily reproduce the truncated file issue, and it
indeed always happen with parallel builds, but not always.

And I can even reproduce it in a native build, on Linus' linux master:

$ make -j1000
mkdir -p include/linux 2>&1 || true
ln -sf /home/ymorin/dev/linux/linux/tools/gpio/../../include/uapi/linux/gpio.h
include/linux/gpio.h
make -f /home/ymorin/dev/linux/linux/tools/build/Makefile.build dir=.
obj=lsgpio
make -f /home/ymorin/dev/linux/linux/tools/build/Makefile.build dir=.
obj=gpio-hammer
make -f /home/ymorin/dev/linux/linux/tools/build/Makefile.build dir=.
obj=gpio-event-mon
make[1]: Entering directory '/home/ymorin/dev/linux/linux/tools/gpio'
make[1]: Entering directory '/home/ymorin/dev/linux/linux/tools/gpio'
make[1]: Entering directory '/home/ymorin/dev/linux/linux/tools/gpio'
  CC       gpio-event-mon.o
  CC       lsgpio.o
  CC       gpio-hammer.o
  CC       gpio-utils.o
  CC       gpio-utils.o
  CC       gpio-utils.o
gpio-event-mon.c: In function ?monitor_device?:
gpio-event-mon.c:100:19: warning: format ?%lu? expects argument of type ?long
unsigned int?, but argument 3 has type ?__u64 {aka long long unsigned int}?
[-Wformat=]
   fprintf(stdout, "GPIO EVENT %" PRIu64 ": ", event.timestamp);
                   ^~~~~~~~~~~~~~
  LD       gpio-event-mon-in.o
gpio-utils.o: file not recognized: File truncated
/home/ymorin/dev/linux/linux/tools/build/Makefile.build:143: recipe for target
'gpio-event-mon-in.o' failed
make[1]: *** [gpio-event-mon-in.o] Error 1
make[1]: Leaving directory '/home/ymorin/dev/linux/linux/tools/gpio'
Makefile:58: recipe for target 'gpio-event-mon-in.o' failed
make: *** [gpio-event-mon-in.o] Error 2
make: *** Waiting for unfinished jobs....
  LD       lsgpio-in.o
make[1]: Leaving directory '/home/ymorin/dev/linux/linux/tools/gpio'
  LD       gpio-hammer-in.o
make[1]: Leaving directory '/home/ymorin/dev/linux/linux/tools/gpio'


Yet, you are right that there is also (and more importantly) a
problem with using ld instead of gcc.

So, there are two issues in one. ;-)

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[Buildroot] [Bug 10276] BR2_PACKAGE_LINUX_TOOLS_GPIO fails for MIPS with "gpio-hammer.o: ABI is incompatible with that of the selected emulation"

[bugzilla]

https://bugs.busybox.net/show_bug.cgi?id=10276

Yann E. MORIN <yann.morin.1998@free.fr> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |MOVED
             Status|ASSIGNED                    |RESOLVED

--- Comment #5 from Yann E. MORIN <yann.morin.1998@free.fr> ---
THank you for your report.

The issue tracker for the Buildroot project has been moved to
the Gitlab.com issue tracker:
    https://gitlab.com/buildroot.org/buildroot/-/issues

We are taking this opportunity to close old issues in this old
tracker. If you believe your issue is still relevant, please
open one in the new issue tracker.

Thank you!

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