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patches/gcc/4.4.2/370-bootstrap-target_lib_path.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) 
     1 ChangeLog:

     2 2010-01-06  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

     3 

     4 	PR bootstrap/41818

     5 	* Makefile.tpl (BASE_TARGET_EXPORTS): Only add TARGET_LIB_PATH

     6 	to $(RPATH_ENVVAR) if bootstrapping.

     7 	* Makefile.in: Regenerate.

     8 

     9 diff --git a/Makefile.in b/Makefile.in

    10 index e5fa1d3..dbfc1f0 100644

    11 --- a/Makefile.in

    12 +++ b/Makefile.in

    13 @@ -281,7 +281,10 @@ BASE_TARGET_EXPORTS = \

    14  	STRIP="$(STRIP_FOR_TARGET)"; export STRIP; \

    15  	WINDRES="$(WINDRES_FOR_TARGET)"; export WINDRES; \

    16  	WINDMC="$(WINDMC_FOR_TARGET)"; export WINDMC; \

    17 -	$(RPATH_ENVVAR)=`echo "$(HOST_LIB_PATH)$(TARGET_LIB_PATH)$$$(RPATH_ENVVAR)" | sed 's,::*,:,g;s,^:*,,;s,:*$$,,'`; export $(RPATH_ENVVAR);

    18 +@if gcc-bootstrap

    19 +	$(RPATH_ENVVAR)=`echo "$(TARGET_LIB_PATH)$$$(RPATH_ENVVAR)" | sed 's,::*,:,g;s,^:*,,;s,:*$$,,'`; export $(RPATH_ENVVAR); \

    20 +@endif gcc-bootstrap

    21 +	$(RPATH_ENVVAR)=`echo "$(HOST_LIB_PATH)$$$(RPATH_ENVVAR)" | sed 's,::*,:,g;s,^:*,,;s,:*$$,,'`; export $(RPATH_ENVVAR);

    22  

    23  RAW_CXX_TARGET_EXPORTS = \

    24  	$(BASE_TARGET_EXPORTS) \

    25 diff --git a/Makefile.tpl b/Makefile.tpl

    26 index 15102e5..452d47c 100644

    27 --- a/Makefile.tpl

    28 +++ b/Makefile.tpl

    29 @@ -284,7 +284,10 @@ BASE_TARGET_EXPORTS = \

    30  	STRIP="$(STRIP_FOR_TARGET)"; export STRIP; \

    31  	WINDRES="$(WINDRES_FOR_TARGET)"; export WINDRES; \

    32  	WINDMC="$(WINDMC_FOR_TARGET)"; export WINDMC; \

    33 -	$(RPATH_ENVVAR)=`echo "$(HOST_LIB_PATH)$(TARGET_LIB_PATH)$$$(RPATH_ENVVAR)" | sed 's,::*,:,g;s,^:*,,;s,:*$$,,'`; export $(RPATH_ENVVAR);

    34 +@if gcc-bootstrap

    35 +	$(RPATH_ENVVAR)=`echo "$(TARGET_LIB_PATH)$$$(RPATH_ENVVAR)" | sed 's,::*,:,g;s,^:*,,;s,:*$$,,'`; export $(RPATH_ENVVAR); \

    36 +@endif gcc-bootstrap

    37 +	$(RPATH_ENVVAR)=`echo "$(HOST_LIB_PATH)$$$(RPATH_ENVVAR)" | sed 's,::*,:,g;s,^:*,,;s,:*$$,,'`; export $(RPATH_ENVVAR);

    38  

    39  RAW_CXX_TARGET_EXPORTS = \

    40  	$(BASE_TARGET_EXPORTS) \
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