RTEMS Release Snapshot: 5.0.0-m2004 (02 Apr 2020)
Joel Sherrill
joel at rtems.org
Thu Apr 9 17:20:37 UTC 2020
How is this dealt with in sp01 and samples/ticker in the main tree?
I suppose we need a patch for the rtems-examples repository.
On Thu, Apr 9, 2020 at 8:34 AM Alan Cudmore <alan.cudmore at gmail.com> wrote:
> Hi Sebastian,
> Thank you for reproducing this. I added the floating point attribute
> to my demo tasks and it works as expected.
> I was just about to try Chris' suggestion of using GDB when I saw this
> message.
>
> I encountered the same problem building the examples with waf.
>
> Regards,
> Alan
>
> On Thu, Apr 9, 2020 at 7:51 AM Sebastian Huber
> <sebastian.huber at embedded-brains.de> wrote:
> >
> > Hello Alan,
> >
> > On 08/04/2020 17:48, Alan Cudmore wrote:
> > > Regarding the LEON3: I am noticing something with the release that I
> > > don't understand yet.
> > >
> > > I am able to build and run a number of ARM BSPs including raspberrypi,
> > > raspberrypi2, beagleboneblack, and xlinx_zynq_a9_qemu
> > > When I build my application for the leon3, most of it appears to work,
> > > but I have a task demo that crashes when I try to print a variable
> > > that is on the task stack. ( task ID, similar to what ticker does )
> > > I went back and ran a number of the testsuite programs on both my
> > > patched QEMU and sparc-rtems5-sis with no problems.
> > > I then cloned the latest rtems-examples git repository and built the
> > > ticker examples using the (obsolete) Makefile. When built this way,
> > > the ticker program crashes as well on both QEMU and SIS.
> > >
> > > I'm trying to narrow down the differences by comparing the flags used
> > > to build the testsuite in the build tree vs. my applications and the
> > > rtems-examples repository.
> > >
> > > Should I try building the examples with waf?
> >
> > I was able to reproduce this issue. It seems to be a problem with the
> > use of the FPU in a non-FP task:
> >
> > Program received signal SIGTERM, Terminated.
> > syscall () at
> >
> /home/EB/sebastian_h/src/rtems/c/src/../../cpukit/score/cpu/sparc/syscall.S:44
> > 44 ta 0 ! syscall 1, halt with
> > %g1,%g2,%g3 info
> > (gdb) bt
> > #0 syscall () at
> >
> /home/EB/sebastian_h/src/rtems/c/src/../../cpukit/score/cpu/sparc/syscall.S:44
> > #1 0x4000f888 in _User_extensions_Fatal_visitor (executing=0x0,
> > arg=0x26, callouts=0x40020ca8 <_User_extensions_List+4>) at
> >
> /home/EB/sebastian_h/src/rtems/c/src/../../cpukit/score/src/userextiterate.c:131
> > #2 0x4001cdc4 in _CPU_Fatal_halt (source=10, source at entry=0, error=0,
> > error at entry=38) at
> >
> /home/EB/sebastian_h/src/rtems/c/src/lib/libbsp/sparc/leon3/../../../../../../bsps/sparc/leon3/start/bsp_fatal_halt.c:33
> > #3 0x4000fb68 in _Terminate
> > (the_source=the_source at entry=INTERNAL_ERROR_CORE, the_error=38,
> > the_error at entry=0) at
> > /home/EB/sebastian_h/src/rtems/c/src/../../cpukit/score/src/interr.c:44
> > #4 0x4000fb7c in _Internal_error (core_error=0,
> > core_error at entry=INTERNAL_ERROR_ILLEGAL_USE_OF_FLOATING_POINT_UNIT) at
> > /home/EB/sebastian_h/src/rtems/c/src/../../cpukit/score/src/interr.c:52
> > #5 0x40001664 in bsp_spurious_handler (trap=260, isf=0x40028518) at
> >
> /home/EB/sebastian_h/src/rtems/c/src/lib/libbsp/sparc/leon3/../../../../../../bsps/sparc/leon3/start/spurious.c:124
> > #6 0x40012390 in pil_fixed () at
> >
> /home/EB/sebastian_h/src/rtems/c/src/../../cpukit/score/cpu/sparc/cpu_asm.S:592
> >
> > It would be good to add support for the RTEMS Tester to the examples.
> >
> > I was not able to build the examples with waf:
> >
> > Waf: Entering directory
> > `/home/EB/sebastian_h/src/rtems-examples/build/sparc-rtems5-leon3'
> > [ 1/14] Compiling hello/hello_world_c/test.c
> > [ 2/14] Compiling hello/posix_hello_world/test.c
> > [ 3/14] Compiling hello/both_hello/test.c
> > [ 4/14] Compiling hello/both_hello/test.c
> > [ 5/14] Compiling hello/both_hello/test.c
> > [ 6/14] Linking
> > build/sparc-rtems5-leon3/hello/posix_hello_world/posix_hello.exe
> > [ 7/14] Linking build/sparc-rtems5-leon3/hello/hello_world_c/hello.exe
> > [ 8/14] Compiling build/sparc-rtems5-leon3/hello/both_hello/test.c.2.o
> > [ 9/14] Compiling build/sparc-rtems5-leon3/hello/both_hello/test.c.1.o
> > [10/14] Linking build/sparc-rtems5-leon3/hello/both_hello/both_hello.exe
> > [11/14] Compiling gdb/overwrite/rtems_init.c
> > [12/14] Compiling gdb/overwrite/overwrite.c
> > [13/14] Compiling filesystem/fat_ramdisk/rootfs/shell-init
> > [14/14] Linking build/sparc-rtems5-leon3/gdb/overwrite/overwrite.exe
> > [15/15] Compiling
> > build/sparc-rtems5-leon3/filesystem/fat_ramdisk/rootfs/shell-init
> > [16/16] Compiling
> > build/sparc-rtems5-leon3/filesystem/fat_ramdisk/fs-root.tar
> > [17/29] Compiling
> > build/sparc-rtems5-leon3/filesystem/fat_ramdisk/fs-root-tar.c
> > [18/29] Compiling filesystem/fat_ramdisk/init.c
> > [19/29] Compiling
> > build/sparc-rtems5-leon3/filesystem/fat_ramdisk/fs-root-tar.c
> > [20/29] Compiling filesystem/fat_ramdisk/init.c
> > [21/29] Compiling classic_api/classic_signal/test.c
> > [22/29] Compiling classic_api/triple_period/tasks.c
> > Waf: Leaving directory
> > `/home/EB/sebastian_h/src/rtems-examples/build/sparc-rtems5-leon3'
> > Build failed
> > Traceback (most recent call last):
> > File
> >
> "/home/EB/sebastian_h/src/rtems-examples/.waf-2.0.19-1f3c580272b15a03d2566843c5fe872a/waflib/Task.py",
> > line 190, in process
> > self.post_run()
> > File "/home/EB/sebastian_h/src/rtems-examples/rtems_waf/gccdeps.py",
> > line 144, in post_run
> > raise ValueError('could not find %r for %r' % (x, self))
> > ValueError: could not find ['filesystem', 'fat_ramdisk',
> > 'fs-root-tar.h'] for
> > {task 140228625202304: c init.c -> init.c.6.o}
> >
> > Traceback (most recent call last):
> > File
> >
> "/home/EB/sebastian_h/src/rtems-examples/.waf-2.0.19-1f3c580272b15a03d2566843c5fe872a/waflib/Task.py",
> > line 190, in process
> > self.post_run()
> > File "/home/EB/sebastian_h/src/rtems-examples/rtems_waf/gccdeps.py",
> > line 144, in post_run
> > raise ValueError('could not find %r for %r' % (x, self))
> > ValueError: could not find ['filesystem', 'fat_ramdisk',
> > 'fs-root-tar.h'] for
> > {task 140228625202904: c init.c -> init.c.5.o}
> >
> > This used to work some days ago. Maybe commit
> > 341747b0a03ffce9082ed84a94905cd9a3ea32fc cased this issue?
> >
> >
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