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* Infinite loop in eglibc-2.18 cross build for private port
@ 2014-04-25 12:58 Konstantin Vladimirov
  2014-04-26 17:25 ` Carlos O'Donell
  0 siblings, 1 reply; 2+ messages in thread
From: Konstantin Vladimirov @ 2014-04-25 12:58 UTC (permalink / raw)
  To: libc-ports, libc-help


I am working on private port for eglibc-2.18, cross-build (host system
is x86, target system is private)

I detected strange behavior in build system -- if build was
interrupted (say by Ctrl+C) and then again started (and only in this
case, regular rebuild works ok), then it loops infinitely on generated
headers, like tlsdesc.h (it may loop on any, depending on time when
Ctrl-C is pressed, say on tcb-offsets.h).

Scheme is (skipping long paths, gcc arguments and sed magic lines):

1) make[2]: Entering directory `eglibc-2.18/libc/csu'
2) /usr/bin/install -c -m 644 ../include/limits.h ...
3) gawk -f ../scripts/gen-as-const.awk tlsdesc.sym \
    | gcc -S -o tlsdesc.hT3 ... -x c -  -MD -MP  -MF tlsdesc.h.dT -MT
tlsdesc.h.d tlsdesc.h
4) sed -n 's/...' tlsdesc.hT3 > tlsdesc.hT
5) rm -f tlsdesc.hT3
6) sed -e 's@ ... ' -e 's@  ...' tlsdesc.h.dT > tlsdesc.h.dT2
7) rm -f tlsdesc.h.dT
8) mv -f tlsdesc.h.dT2 tlsdesc.h.d
9) mv -f tlsdesc.hT tlsdesc.h
10) make[2]: Leaving directory `eglibc-2.18/libc/csu'

after that build system enters csu folder again and those 10 steps
repeats again and again.

On step 10, tlsdesc.h looks meaningful and filled with correct information.

I really stuck in attempts to find this bug. I suppose something wrong
in my port, but I can not even imagine what can I do to reveal such

If anyone faced similar problems and has an experience like this, any
help, or even advice "where to look" will be appreciated.

With best regards, Konstantin

^ permalink raw reply	[flat|nested] 2+ messages in thread

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2014-04-25 12:58 Infinite loop in eglibc-2.18 cross build for private port Konstantin Vladimirov
2014-04-26 17:25 ` Carlos O'Donell

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