patches/glibc/ports-2.6.1/100-ARM-NPTL.patch
author |
"Yann E. MORIN" <yann.morin.1998@anciens.enib.fr> |
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Tue Dec 13 23:32:39 2011 +0100 (2011-12-13) |
branch | 1.13 |
changeset 2847 |
c0bf2319af08 |
parent 365 |
ba634892cc18
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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>
(transplanted from 4193d6e6a17430a177fa88c287879c2c35e319f3)
yann@365
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diff -durN glibc-2.6.1.orig/glibc-ports-2.6.1/sysdeps/unix/sysv/linux/arm/nptl/sysdep-cancel.h glibc-2.6.1/glibc-ports-2.6.1/sysdeps/unix/sysv/linux/arm/nptl/sysdep-cancel.h
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yann@367
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--- glibc-2.6.1.orig/glibc-ports-2.6.1/sysdeps/unix/sysv/linux/arm/nptl/sysdep-cancel.h 2005-11-16 20:22:59.000000000 +0100
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yann@367
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+++ glibc-2.6.1/glibc-ports-2.6.1/sysdeps/unix/sysv/linux/arm/nptl/sysdep-cancel.h 2007-09-06 13:53:16.000000000 +0200
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yann@365
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@@ -126,3 +126,9 @@
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yann@365
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# define NO_CANCELLATION 1
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yann@365
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#endif
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yann@365
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+
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yann@365
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+#ifndef __ASSEMBLER__
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+# define RTLD_SINGLE_THREAD_P \
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+ __builtin_expect (THREAD_GETMEM (THREAD_SELF, \
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yann@365
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+ header.multiple_threads) == 0, 1)
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yann@365
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+#endif
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