* [linux-stable-rc:linux-3.16.y 2872/3488] head64.c:undefined reference to `__gcov_exit'
@ 2018-02-16 18:21 kbuild test robot
2018-02-16 20:28 ` Arnd Bergmann
0 siblings, 1 reply; 4+ messages in thread
From: kbuild test robot @ 2018-02-16 18:21 UTC (permalink / raw)
To: Andrey Ryabinin
Cc: kbuild-all, Ben Hutchings, Andrey Konovalov, Andrew Morton,
Linux Memory Management List, Greg Kroah-Hartman, Arnd Bergmann
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Hi Andrey,
It's probably a bug fix that unveils the link errors.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-3.16.y
head: 0b9f4cdd4d75131d8886b919bbf6e0c98906d36e
commit: 3cb0dc19883f0c69225311d4f76aa8128d3681a4 [2872/3488] module: fix types of device tables aliases
config: x86_64-allmodconfig (attached as .config)
compiler: gcc-7 (Debian 7.3.0-1) 7.3.0
reproduce:
git checkout 3cb0dc19883f0c69225311d4f76aa8128d3681a4
# save the attached .config to linux build tree
make ARCH=x86_64
All errors (new ones prefixed by >>):
arch/x86/kernel/head64.o: In function `_GLOBAL__sub_D_00100_1_early_pmd_flags':
>> head64.c:(.text.exit+0x5): undefined reference to `__gcov_exit'
arch/x86/kernel/head.o: In function `_GLOBAL__sub_D_00100_1_reserve_ebda_region':
head.c:(.text.exit+0x5): undefined reference to `__gcov_exit'
init/built-in.o: In function `_GLOBAL__sub_D_00100_1___ksymtab_system_state':
main.c:(.text.exit+0x5): undefined reference to `__gcov_exit'
init/built-in.o: In function `_GLOBAL__sub_D_00100_1_root_mountflags':
do_mounts.c:(.text.exit+0x10): undefined reference to `__gcov_exit'
init/built-in.o: In function `_GLOBAL__sub_D_00100_1_initrd_load':
do_mounts_initrd.c:(.text.exit+0x1b): undefined reference to `__gcov_exit'
init/built-in.o:initramfs.c:(.text.exit+0x26): more undefined references to `__gcov_exit' follow
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation
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^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [linux-stable-rc:linux-3.16.y 2872/3488] head64.c:undefined reference to `__gcov_exit'
2018-02-16 18:21 [linux-stable-rc:linux-3.16.y 2872/3488] head64.c:undefined reference to `__gcov_exit' kbuild test robot
@ 2018-02-16 20:28 ` Arnd Bergmann
2018-11-11 1:38 ` Ben Hutchings
0 siblings, 1 reply; 4+ messages in thread
From: Arnd Bergmann @ 2018-02-16 20:28 UTC (permalink / raw)
To: kbuild test robot
Cc: Andrey Ryabinin, kbuild-all, Ben Hutchings, Andrey Konovalov,
Andrew Morton, Linux Memory Management List, Greg Kroah-Hartman,
stable
On Fri, Feb 16, 2018 at 7:21 PM, kbuild test robot
<fengguang.wu@intel.com> wrote:
> Hi Andrey,
>
> It's probably a bug fix that unveils the link errors.
>
> tree: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-3.16.y
> head: 0b9f4cdd4d75131d8886b919bbf6e0c98906d36e
> commit: 3cb0dc19883f0c69225311d4f76aa8128d3681a4 [2872/3488] module: fix types of device tables aliases
> config: x86_64-allmodconfig (attached as .config)
> compiler: gcc-7 (Debian 7.3.0-1) 7.3.0
> reproduce:
> git checkout 3cb0dc19883f0c69225311d4f76aa8128d3681a4
> # save the attached .config to linux build tree
> make ARCH=x86_64
>
> All errors (new ones prefixed by >>):
>
> arch/x86/kernel/head64.o: In function `_GLOBAL__sub_D_00100_1_early_pmd_flags':
>>> head64.c:(.text.exit+0x5): undefined reference to `__gcov_exit'
> arch/x86/kernel/head.o: In function `_GLOBAL__sub_D_00100_1_reserve_ebda_region':
> head.c:(.text.exit+0x5): undefined reference to `__gcov_exit'
> init/built-in.o: In function `_GLOBAL__sub_D_00100_1___ksymtab_system_state':
> main.c:(.text.exit+0x5): undefined reference to `__gcov_exit'
> init/built-in.o: In function `_GLOBAL__sub_D_00100_1_root_mountflags':
> do_mounts.c:(.text.exit+0x10): undefined reference to `__gcov_exit'
> init/built-in.o: In function `_GLOBAL__sub_D_00100_1_initrd_load':
> do_mounts_initrd.c:(.text.exit+0x1b): undefined reference to `__gcov_exit'
> init/built-in.o:initramfs.c:(.text.exit+0x26): more undefined references to `__gcov_exit' follow
I think this is a result of using a too new compiler with the old 3.16
kernel. In order
to build with gcc-7.3, you need to backport
05384213436a ("gcov: support GCC 7.1")
It's already part of stable-3.18 and later, but not 3.2 and 3.16.
Arnd
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^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [linux-stable-rc:linux-3.16.y 2872/3488] head64.c:undefined reference to `__gcov_exit'
2018-02-16 20:28 ` Arnd Bergmann
@ 2018-11-11 1:38 ` Ben Hutchings
0 siblings, 0 replies; 4+ messages in thread
From: Ben Hutchings @ 2018-11-11 1:38 UTC (permalink / raw)
To: Arnd Bergmann, kbuild test robot
Cc: Andrey Ryabinin, kbuild-all, Ben Hutchings, Andrey Konovalov,
Andrew Morton, Linux Memory Management List, Greg Kroah-Hartman,
stable
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On Fri, 2018-02-16 at 21:28 +0100, Arnd Bergmann wrote:
> On Fri, Feb 16, 2018 at 7:21 PM, kbuild test robot
> <fengguang.wu@intel.com> wrote:
[...]
> > All errors (new ones prefixed by >>):
> >
> > arch/x86/kernel/head64.o: In function `_GLOBAL__sub_D_00100_1_early_pmd_flags':
> > > > head64.c:(.text.exit+0x5): undefined reference to `__gcov_exit'
> > arch/x86/kernel/head.o: In function `_GLOBAL__sub_D_00100_1_reserve_ebda_region':
> > head.c:(.text.exit+0x5): undefined reference to `__gcov_exit'
> > init/built-in.o: In function `_GLOBAL__sub_D_00100_1___ksymtab_system_state':
> > main.c:(.text.exit+0x5): undefined reference to `__gcov_exit'
> > init/built-in.o: In function `_GLOBAL__sub_D_00100_1_root_mountflags':
> > do_mounts.c:(.text.exit+0x10): undefined reference to `__gcov_exit'
> > init/built-in.o: In function `_GLOBAL__sub_D_00100_1_initrd_load':
> > do_mounts_initrd.c:(.text.exit+0x1b): undefined reference to `__gcov_exit'
> > init/built-in.o:initramfs.c:(.text.exit+0x26): more undefined references to `__gcov_exit' follow
>
> I think this is a result of using a too new compiler with the old 3.16
> kernel. In order
> to build with gcc-7.3, you need to backport
>
> 05384213436a ("gcov: support GCC 7.1")
>
> It's already part of stable-3.18 and later, but not 3.2 and 3.16.
Thanks. I've queued up the following for 3.16:
3e44c471a2da gcov: add support for GCC 5.1
d02038f97253 gcov: add support for gcc version >= 6
05384213436a gcov: support GCC 7.1
Ben.
--
Ben Hutchings
Reality is just a crutch for people who can't handle science fiction.
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^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [linux-stable-rc:linux-3.16.y 2872/3488] head64.c:undefined reference to `__gcov_exit'
@ 2018-11-11 1:38 ` Ben Hutchings
0 siblings, 0 replies; 4+ messages in thread
From: Ben Hutchings @ 2018-11-11 1:38 UTC (permalink / raw)
To: Arnd Bergmann, kbuild test robot
Cc: Andrey Ryabinin, kbuild-all, Ben Hutchings, Andrey Konovalov,
Andrew Morton, Linux Memory Management List, Greg Kroah-Hartman,
stable
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On Fri, 2018-02-16 at 21:28 +0100, Arnd Bergmann wrote:
> On Fri, Feb 16, 2018 at 7:21 PM, kbuild test robot
> <fengguang.wu@intel.com> wrote:
[...]
> > All errors (new ones prefixed by >>):
> >
> > arch/x86/kernel/head64.o: In function `_GLOBAL__sub_D_00100_1_early_pmd_flags':
> > > > head64.c:(.text.exit+0x5): undefined reference to `__gcov_exit'
> > arch/x86/kernel/head.o: In function `_GLOBAL__sub_D_00100_1_reserve_ebda_region':
> > head.c:(.text.exit+0x5): undefined reference to `__gcov_exit'
> > init/built-in.o: In function `_GLOBAL__sub_D_00100_1___ksymtab_system_state':
> > main.c:(.text.exit+0x5): undefined reference to `__gcov_exit'
> > init/built-in.o: In function `_GLOBAL__sub_D_00100_1_root_mountflags':
> > do_mounts.c:(.text.exit+0x10): undefined reference to `__gcov_exit'
> > init/built-in.o: In function `_GLOBAL__sub_D_00100_1_initrd_load':
> > do_mounts_initrd.c:(.text.exit+0x1b): undefined reference to `__gcov_exit'
> > init/built-in.o:initramfs.c:(.text.exit+0x26): more undefined references to `__gcov_exit' follow
>
> I think this is a result of using a too new compiler with the old 3.16
> kernel. In order
> to build with gcc-7.3, you need to backport
>
> 05384213436a ("gcov: support GCC 7.1")
>
> It's already part of stable-3.18 and later, but not 3.2 and 3.16.
Thanks. I've queued up the following for 3.16:
3e44c471a2da gcov: add support for GCC 5.1
d02038f97253 gcov: add support for gcc version >= 6
05384213436a gcov: support GCC 7.1
Ben.
--
Ben Hutchings
Reality is just a crutch for people who can't handle science fiction.
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2018-02-16 18:21 [linux-stable-rc:linux-3.16.y 2872/3488] head64.c:undefined reference to `__gcov_exit' kbuild test robot
2018-02-16 20:28 ` Arnd Bergmann
2018-11-11 1:38 ` Ben Hutchings
2018-11-11 1:38 ` Ben Hutchings
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