samples/powerpc-e500v2-linux-gnuspe/reported.by
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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 2290 |
ba82eb173bd4
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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@2139
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reporter_name="Anthony Foiani <anthony.foiani@gmail.com>"
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yann@2139
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reporter_url="http://sourceware.org/ml/crossgcc/2010-09/msg00100.html"
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yann@2290
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reporter_comment="This is a sample config file for Freescale e500v2 processors (e.g., MPC8548,
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yann@2369
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MPC8572). It uses eglibc (for e500/SPE patches) and a recent gcc (4.6.0,
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yann@2173
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for e500v2 DPFP support) and will generate appropriate dual-precision
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yann@2173
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floating point instructions by default.
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yann@935
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yann@2173
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Note: If building a Linux kernel with this toolchain, you will want to make
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yann@2173
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sure -mno-spe AND -mspe=no are passed to gcc to prevent SPE ABI/instructions
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yann@2173
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from getting into the kernel (which is currently unsupported). At this time,
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yann@2173
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the kernel build system properly passes those two options, but older kernels
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yann@2173
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were only passing -mno-spe by default."
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