Mercurialcrosstool-ng / file revision
summary | shortlog | changelog | graph | tags | branches | files | changeset | file | latest | revisions | annotate | diff | raw | help
scripts/scripts.mk
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 1618 7f52e1cca71e
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 # Makefile for the scripts/ sub-directory

     2 

     3 # Here, we can update the config.* scripts.

     4 # If we're in CT_LIB_DIR, then CT_LIB_DIR == CT_TOP_DIR, and we can update those

     5 # scripts for later inclusion mainline. If CT_LIB_DIR != CT_TOP_DIR, then those

     6 # scripts are downloaded only for use in CT_TOP_DIR.

     7 

     8 # ----------------------------------------------------------

     9 # The tools help entry

    10 

    11 help-distrib::

    12 	@echo  '  updatetools        - Update the config tools'

    13 

    14 # ----------------------------------------------------------

    15 # Where to get tools from, and where to store them into

    16 # The tools are: config.guess and config.sub

    17 

    18 CONFIG_SUB_SRC="http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.sub;hb=HEAD"

    19 CONFIG_SUB_DEST=scripts/config.sub

    20 CONFIG_GUESS_SRC="http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.guess;hb=HEAD"

    21 CONFIG_GUESS_DEST=scripts/config.guess

    22 

    23 PHONY += updatetools

    24 updatetools: $(CONFIG_SUB_DEST) $(CONFIG_GUESS_DEST)

    25 

    26 # ----------------------------------------------------------

    27 # How to retrieve the tools

    28 

    29 wget_opt=-o /dev/null

    30 ifeq ($(strip $(V)),2)

    31   wget_opt=

    32 endif

    33 

    34 PHONY += scripts

    35 scripts:

    36 	@$(ECHO) '  MKDIR $@'

    37 	$(SILENT)mkdir -p $@

    38 

    39 $(CONFIG_SUB_DEST): scripts FORCE

    40 	@$(ECHO) '  WGET  $@'

    41 	$(SILENT)wget $(wget_opt) -O $@ $(CONFIG_SUB_SRC)

    42 	$(SILENT)chmod u+rwx,go+rx-w $@

    43 

    44 $(CONFIG_GUESS_DEST): scripts FORCE

    45 	@$(ECHO) '  WGET  $@'

    46 	$(SILENT)wget $(wget_opt) -O $@ $(CONFIG_GUESS_SRC)

    47 	$(SILENT)chmod u+rwx,go+rx-w $@

    48 

    49 # ----------------------------------------------------------

    50 # Clean up the mess

    51 

    52 distclean::

    53 	@$(ECHO) "  CLEAN scripts"

    54 	$(SILENT)[ $(CT_TOP_DIR) = $(CT_LIB_DIR) ] || rm -rf $(CT_TOP_DIR)/scripts
crosstool-ng