scripts/scripts.mk
author Johannes Stezenbach <js@sig21.net>
Tue Oct 30 00:22:25 2012 +0000 (2012-10-30)
changeset 3097 5c67476c7342
parent 1618 7f52e1cca71e
permissions -rw-r--r--
scripts/functions: fix endless loop in debug-shell with IO redirection

CT_DEBUG_INTERACTIVE is disabled when stdin, stdout or
stderr are redirected, but the check is only done at
the start of the build and doesn't catch when individual
build commands use redirection. When stdin is redirected
it will cause the debug shell to exit immediately, causing
and endless loop. Thus, save the stdin/our/err file handles
and restore them before invoking the debug shell.

Signed-off-by: Johannes Stezenbach <js@sig21.net>
Message-Id: <20121030102225.GA8303@sig21.net>
Patchwork-Id: 195409
     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