patches/glibc/ports-2.6.1/130-powerpc-softfloat.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Tue Dec 13 23:32:39 2011 +0100 (2011-12-13)
branch1.13
changeset 2847 c0bf2319af08
permissions -rw-r--r--
scripts: fix dumping execution backtrace

Dumping the backtrace has been broken since changeset #652e56d6d35a:
scripts: execute each steps in a subshell

We can spawn sub-sub-shells in some cases.

The way the fault handler works is to dump the backtrace, but to avoid
printing it once for every sub-shell (which could get quite confusing),
it simply exits when it detects that it is being run in a sub-shell,
leaving to the top-level shell the work to dump the backtrace.

Because each step is executed in its own sub-shell, the variable arrays
that contain the step name, the source file and line number, are lost
when exiting the per-step sub-shell.

Hence, the backtrace is currently limited to printing only the top-level
main procedure of the shell.

Fix this thus:
- when dumping the bckatraces for the steps & the functions, remember
it was dumped, and only dump it if it was not already dumped
- at the top-level shell, print the hints

Also, rename the top-level step label.

Reported-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
(transplanted from 4193d6e6a17430a177fa88c287879c2c35e319f3)
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From: http://sourceware.org/ml/crossgcc/2008-10/msg00044.html
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From: http://sources.redhat.com/ml/libc-ports/2007-06/msg00005.html
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2007-06-07  Steven Munroe  <sjmunroe@us.ibm.com>
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    * sysdeps/powerpc/nofpu/Makefile: Remove fe_nomask from libm-support.
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diff -urN glibc-2.6.orig/glibc-ports-2.6.1/sysdeps/powerpc/nofpu/Makefile glibc-2.6/glibc-ports-2.6.1/sysdeps/powerpc/nofpu/Makefile
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--- glibc-2.6.orig/glibc-ports-2.6.1/sysdeps/powerpc/nofpu/Makefile	2006-11-22 09:13:11.000000000 -0600
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+++ glibc-2.6/glibc-ports-2.6.1/sysdeps/powerpc/nofpu/Makefile	2007-06-07 09:53:05.708240976 -0500
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@@ -6,7 +6,7 @@
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 endif
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 ifeq ($(subdir),math)
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-libm-support += fenv_const fe_nomask
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+libm-support += fenv_const
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 CPPFLAGS += -I../soft-fp/
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 # The follow CFLAGS are a work around for GCC Bugzilla Bug 29253
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 # "expand_abs wrong default code for floating point"
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