patches/glibc/2.6.1/140-i386-preferred-stack-boundary.patch
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"Yann E. MORIN" <yann.morin.1998@anciens.enib.fr> |
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Tue Dec 13 23:32:39 2011 +0100 (2011-12-13) |
changeset 2807 |
4193d6e6a174 |
parent 744 |
4bf8448536d5
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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>
yann@402
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(C) 2007 Yann E. MORIN <yann.morin.1998@anciens.enib.fr>
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License: LGPL v2.1
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Shut off a stupid warning: preffered-stack-boundary must be between 4 ad 12,
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and 2 is not.
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diff -dur glibc-2.5.orig/sysdeps/i386/Makefile glibc-2.5/sysdeps/i386/Makefile
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--- glibc-2.5.orig/sysdeps/i386/Makefile 2005-03-06 01:18:16.000000000 +0100
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+++ glibc-2.5/sysdeps/i386/Makefile 2007-05-27 17:49:37.000000000 +0200
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@@ -36,7 +36,7 @@
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ifeq ($(subdir),csu)
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sysdep-CFLAGS += -mpreferred-stack-boundary=4
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else
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-sysdep-CFLAGS += -mpreferred-stack-boundary=2
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+sysdep-CFLAGS += -mpreferred-stack-boundary=4
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# Likewise, any function which calls user callbacks
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uses-callbacks += -mpreferred-stack-boundary=4
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# Likewise, any stack alignment tests
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