* [Buildroot] [Bug 10996] New: bogus musl ARM toolchain
@ 2018-05-08 12:41 bugzilla at busybox.net
2018-05-11 15:53 ` [Buildroot] [Bug 10996] " bugzilla at busybox.net
` (5 more replies)
0 siblings, 6 replies; 7+ messages in thread
From: bugzilla at busybox.net @ 2018-05-08 12:41 UTC (permalink / raw)
To: buildroot
https://bugs.busybox.net/show_bug.cgi?id=10996
Bug ID: 10996
Summary: bogus musl ARM toolchain
Product: buildroot
Version: unspecified
Hardware: All
OS: Linux
Status: NEW
Severity: normal
Priority: P5
Component: Other
Assignee: unassigned at buildroot.uclibc.org
Reporter: thomas.petazzoni at free-electrons.com
CC: buildroot at uclibc.org
Target Milestone: ---
The following defconfig doesn't build:
BR2_arm=y
BR2_cortex_a8=y
BR2_STATIC_LIBS=y
BR2_TOOLCHAIN_BUILDROOT_MUSL=y
BR2_TOOLCHAIN_BUILDROOT_CXX=y
BR2_INIT_NONE=y
BR2_SYSTEM_BIN_SH_NONE=y
BR2_PACKAGE_ZIP=y
# BR2_TARGET_ROOTFS_TAR is not set
It doesn't build because the toolchain is broken, and doesn't manage to link a
simple program like this:
$ cat foo.c
int main(void) { mktime(); return 0; }
./output/host/bin/arm-linux-gcc -o foo foo.c
foo.c: In function ?main?:
foo.c:1:18: warning: implicit declaration of function ?mktime?
[-Wimplicit-function-declaration]
int main(void) { mktime(); return 0; }
^~~~~~
/home/thomas/projets/buildroot/output/host/lib/gcc/arm-buildroot-linux-musleabihf/6.4.0/libgcc.a(_dvmd_lnx.o):
In function `__aeabi_idiv0':
/home/thomas/projets/buildroot/output/build/host-gcc-final-6.4.0/build/arm-buildroot-linux-musleabihf/libgcc/../../../libgcc/config/arm/lib1funcs.S:1354:
undefined reference to `raise'
collect2: error: ld returned 1 exit status
This is causing the following build issues in our autobuilders:
http://autobuild.buildroot.net/?reason=zip%&libc=musl.
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* [Buildroot] [Bug 10996] bogus musl ARM toolchain
2018-05-08 12:41 [Buildroot] [Bug 10996] New: bogus musl ARM toolchain bugzilla at busybox.net
@ 2018-05-11 15:53 ` bugzilla at busybox.net
2018-05-13 20:05 ` bugzilla at busybox.net
` (4 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: bugzilla at busybox.net @ 2018-05-11 15:53 UTC (permalink / raw)
To: buildroot
https://bugs.busybox.net/show_bug.cgi?id=10996
--- Comment #1 from Thomas Petazzoni <thomas.petazzoni@free-electrons.com> ---
After discussing with the musl maintainers, this happens because we don't pass
-static. However, a similar setup works with uClibc.
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* [Buildroot] [Bug 10996] bogus musl ARM toolchain
2018-05-08 12:41 [Buildroot] [Bug 10996] New: bogus musl ARM toolchain bugzilla at busybox.net
2018-05-11 15:53 ` [Buildroot] [Bug 10996] " bugzilla at busybox.net
@ 2018-05-13 20:05 ` bugzilla at busybox.net
2018-05-13 20:16 ` bugzilla at busybox.net
` (3 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: bugzilla at busybox.net @ 2018-05-13 20:05 UTC (permalink / raw)
To: buildroot
https://bugs.busybox.net/show_bug.cgi?id=10996
Yann E. MORIN <yann.morin.1998@free.fr> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |yann.morin.1998 at free.fr
--- Comment #2 from Yann E. MORIN <yann.morin.1998@free.fr> ---
(In reply to Thomas Petazzoni from comment #1)
> this happens because we don't pass -static.
But the autobuild failure that is referenced does use -static (with \ and
newlines added for readability):
home/peko/autobuild/instance-1/output/host/bin/arm-buildroot-linux-musleabihf-gcc
\
-c -D_FILE_OFFSET_BITS=64 -Os \
-static \
-I. -DUNIX -DUIDGID_NOT_16BIT -DLARGE_FILE_SUPPORT -DUNICODE_SUPPORT
-DNO_MKTIME \
-DNO_DIR -DHAVE_DIRENT_H -DHAVE_TERMIOS_H util.c
Regards,
Yann E. MORIN.
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* [Buildroot] [Bug 10996] bogus musl ARM toolchain
2018-05-08 12:41 [Buildroot] [Bug 10996] New: bogus musl ARM toolchain bugzilla at busybox.net
2018-05-11 15:53 ` [Buildroot] [Bug 10996] " bugzilla at busybox.net
2018-05-13 20:05 ` bugzilla at busybox.net
@ 2018-05-13 20:16 ` bugzilla at busybox.net
2018-08-14 20:25 ` bugzilla at busybox.net
` (2 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: bugzilla at busybox.net @ 2018-05-13 20:16 UTC (permalink / raw)
To: buildroot
https://bugs.busybox.net/show_bug.cgi?id=10996
--- Comment #3 from Thomas Petazzoni <thomas.petazzoni@free-electrons.com> ---
(In reply to Yann E. MORIN from comment #2)
Nope, because you're looking at the wrong place. The reason why the build fail
is because the "configuration" step which detects if mktime() is available or
not fails and concludes that mktime() is not available. See the string "
Check for mktime". Due to this, NO_MKTIME is defined, and this code path is
broken in util.c/timezone.c.
So there are really two problems:
(1) That is doesn't detect the availability of mktime() because -static is not
passed during the detection test.
(2) That the NO_MKTIME case is broken.
However, I believe (2) is not really relevant for Buildroot, as all three C
libraries provide mktime(). So all we need to fix is (1).
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* [Buildroot] [Bug 10996] bogus musl ARM toolchain
2018-05-08 12:41 [Buildroot] [Bug 10996] New: bogus musl ARM toolchain bugzilla at busybox.net
` (2 preceding siblings ...)
2018-05-13 20:16 ` bugzilla at busybox.net
@ 2018-08-14 20:25 ` bugzilla at busybox.net
2018-08-14 22:31 ` bugzilla at busybox.net
2018-08-15 11:38 ` bugzilla at busybox.net
5 siblings, 0 replies; 7+ messages in thread
From: bugzilla at busybox.net @ 2018-08-14 20:25 UTC (permalink / raw)
To: buildroot
https://bugs.busybox.net/show_bug.cgi?id=10996
Thomas Petazzoni <thomas.petazzoni@free-electrons.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |WONTFIX
--- Comment #4 from Thomas Petazzoni <thomas.petazzoni@free-electrons.com> ---
Closing this bug: the musl developers said that -static must be passed when
linking statically, even if the C library was built with static linking support
only.
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* [Buildroot] [Bug 10996] bogus musl ARM toolchain
2018-05-08 12:41 [Buildroot] [Bug 10996] New: bogus musl ARM toolchain bugzilla at busybox.net
` (3 preceding siblings ...)
2018-08-14 20:25 ` bugzilla at busybox.net
@ 2018-08-14 22:31 ` bugzilla at busybox.net
2018-08-15 11:38 ` bugzilla at busybox.net
5 siblings, 0 replies; 7+ messages in thread
From: bugzilla at busybox.net @ 2018-08-14 22:31 UTC (permalink / raw)
To: buildroot
https://bugs.busybox.net/show_bug.cgi?id=10996
--- Comment #5 from Arnout Vandecappelle <arnout@mind.be> ---
(In reply to Thomas Petazzoni from comment #4)
There is still a bug though... I guess we should make sure that -static is
always passed under BR2_STATIC_LIBS=y.
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* [Buildroot] [Bug 10996] bogus musl ARM toolchain
2018-05-08 12:41 [Buildroot] [Bug 10996] New: bogus musl ARM toolchain bugzilla at busybox.net
` (4 preceding siblings ...)
2018-08-14 22:31 ` bugzilla at busybox.net
@ 2018-08-15 11:38 ` bugzilla at busybox.net
5 siblings, 0 replies; 7+ messages in thread
From: bugzilla at busybox.net @ 2018-08-15 11:38 UTC (permalink / raw)
To: buildroot
https://bugs.busybox.net/show_bug.cgi?id=10996
--- Comment #6 from Thomas Petazzoni <thomas.petazzoni@free-electrons.com> ---
(In reply to Arnout Vandecappelle from comment #5)
True, but what do you want to do about this, other than fixing each package?
You want to include -static in the toolchain wrapper?
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end of thread, other threads:[~2018-08-15 11:38 UTC | newest]
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2018-05-13 20:05 ` bugzilla at busybox.net
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