While compiling 2.4.15 for sparc (32-bit) platform I encounted:
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ld -m elf32_sparc -T arch/sparc/vmlinux.lds arch/sparc/kernel/head.o arch/sparc/kernel/init_task.o init/main.o init/version.o \
--start-group \
arch/sparc/kernel/kernel.o arch/sparc/mm/mm.o kernel/kernel.o mm/mm.o fs/fs.o ipc/ipc.o arch/sparc/math-emu/math-emu.o arch/sparc/boot/btfix.o \
drivers/char/char.o drivers/block/block.o drivers/misc/misc.o drivers/net/net.o drivers/media/media.o drivers/scsi/scsidrv.o drivers/cdrom/driver.o drivers/sbus/sbus_all.o drivers/video/video.o \
net/network.o \
/home/root/kernel-2.4.15/linux/lib/lib.a /home/root/kernel-2.4.15/linux/lib/lib.a /home/root/kernel-2.4.15/linux/arch/sparc/prom/promlib.a /home/root/kernel-2.4.15/linux/arch/sparc/lib/lib.a \
--end-group \
-o vmlinux
kernel/kernel.o: In function `show_task':
kernel/kernel.o(.text+0x16a4): undefined reference to `show_trace_task'
make: *** [vmlinux] Error 1
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I scanned all source files for "show_trace_task" and found:
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arch/alpha/kernel/traps.c:132:void show_trace_task(struct task_struct * tsk)
arch/arm/kernel/traps.c:154:void show_trace_task(struct task_struct *tsk)
arch/i386/kernel/traps.c:156:void show_trace_task(struct task_struct *tsk)
arch/sparc64/kernel/traps.c:1406:void show_trace_task(struct task_struct *tsk)
kernel/sched.c:1160: extern void show_trace_task(struct task_struct *tsk);
kernel/sched.c:1161: show_trace_task(p);
=============================================================================
It looks like this didn't get implement across all platforms.
Can the call to show_trace_task() in kernel/sched.c be safely commented
out for now?
--
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| Phil Howard - KA9WGN | Dallas | http://linuxhomepage.com/ |
| [email protected] | Texas, USA | http://phil.ipal.org/ |
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--
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| Phil Howard - KA9WGN | Dallas | http://linuxhomepage.com/ |
| [email protected] | Texas, USA | http://phil.ipal.org/ |
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> Can the call to show_trace_task() in kernel/sched.c be safely commented
> out for now?
Yes I tried to get Linus to add just one more #ifdef around
show_trace_task and I guess it was one too many :)
Its only a debugging aid, for the moment just create an empty
show_trace_task()
Anton