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patches/binutils/2.16.1a/140-cross-gprof.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
parent 402 197e1b49586e
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) 
     1 --- binutils-2.15/configure.old	2004-07-21 21:36:47.000000000 -0700

     2 +++ binutils-2.15/configure	2004-07-21 21:37:08.000000000 -0700

     3 @@ -999,7 +999,7 @@

     4  

     5  # Some tools are only suitable for building in a "native" situation.

     6  # Remove these if host!=target.  

     7 -native_only="autoconf automake libtool fileutils find gawk gettext gzip hello indent m4 rcs recode sed shellutils tar textutils uudecode wdiff gprof target-groff guile perl time ash bash bzip2 prms gnuserv target-gperf"

     8 +native_only="autoconf automake libtool fileutils find gawk gettext gzip hello indent m4 rcs recode sed shellutils tar textutils uudecode wdiff target-groff guile perl time ash bash bzip2 prms gnuserv target-gperf"

     9  

    10  # Similarly, some are only suitable for cross toolchains.

    11  # Remove these if host=target.

    12 --- binutils-2.15/configure.in.old	2004-07-21 21:37:19.000000000 -0700

    13 +++ binutils-2.15/configure.in	2004-07-21 21:37:34.000000000 -0700

    14 @@ -236,7 +236,7 @@

    15  

    16  # Some tools are only suitable for building in a "native" situation.

    17  # Remove these if host!=target.  

    18 -native_only="autoconf automake libtool fileutils find gawk gettext gzip hello indent m4 rcs recode sed shellutils tar textutils uudecode wdiff gprof target-groff guile perl time ash bash bzip2 prms gnuserv target-gperf"

    19 +native_only="autoconf automake libtool fileutils find gawk gettext gzip hello indent m4 rcs recode sed shellutils tar textutils uudecode wdiff target-groff guile perl time ash bash bzip2 prms gnuserv target-gperf"

    20  

    21  # Similarly, some are only suitable for cross toolchains.

    22  # Remove these if host=target.
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