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kbuild: consolidate command line escaping 

While the recent change to also escape # symbols when storing C-file
compilation command lines was helpful, it should be in effect for all
command lines, as much as the dollar escaping should be in effect for
C-source compilation commands. Additionally, for better readability and
maintenance, consolidating all the escaping (single quotes, dollars,
and now sharps) was also desirable.

Signed-Off-By: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
This commit is contained in:
Jan Beulich 2006-01-30 10:04:27 +01:00 committed by Sam Ravnborg
parent 20a468b513
commit 6176aa9ae4
3 changed files with 12 additions and 25 deletions
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15
scripts/Kbuild.include
View File

@ -88,8 +88,7 @@ cc-ifversion = $(shell if [ $(call cc-version, $(CC)) $(1) $(2) ]; then \
build := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.build obj
# If quiet is set, only print short version of command
cmd = @$(if $($(quiet)cmd_$(1)),\
echo ' $(call escsq,$($(quiet)cmd_$(1)))' &&) $(cmd_$(1))
cmd = @$(echo-cmd) $(cmd_$(1))
# Add $(obj)/ for paths that is not absolute
objectify = $(foreach o,$(1),$(if $(filter /%,$(o)),$(o),$(obj)/$(o)))
@ -112,24 +111,24 @@ endif
echo-cmd = $(if $($(quiet)cmd_$(1)), \
echo ' $(call escsq,$($(quiet)cmd_$(1)))';)
make-cmd = $(subst \#,\\\#,$(subst $$,$$$$,$(call escsq,$(cmd_$(1)))))
# function to only execute the passed command if necessary
# >'< substitution is for echo to work, >$< substitution to preserve $ when reloading .cmd file
# note: when using inline perl scripts [perl -e '...$$t=1;...'] in $(cmd_xxx) double $$ your perl vars
#
if_changed = $(if $(strip $? $(call arg-check, $(cmd_$(1)), $(cmd_$@)) ), \
@set -e; \
$(echo-cmd) \
$(cmd_$(1)); \
echo 'cmd_$@ := $(subst $$,$$$$,$(call escsq,$(cmd_$(1))))' > $(@D)/.$(@F).cmd)
$(echo-cmd) $(cmd_$(1)); \
echo 'cmd_$@ := $(make-cmd)' > $(@D)/.$(@F).cmd)
# execute the command and also postprocess generated .d dependencies
# file
if_changed_dep = $(if $(strip $? $(filter-out FORCE $(wildcard $^),$^)\
$(call arg-check, $(cmd_$(1)), $(cmd_$@)) ), \
@set -e; \
$(echo-cmd) \
$(cmd_$(1)); \
scripts/basic/fixdep $(depfile) $@ '$(subst $$,$$$$,$(call escsq,$(cmd_$(1))))' > $(@D)/.$(@F).tmp; \
$(echo-cmd) $(cmd_$(1)); \
scripts/basic/fixdep $(depfile) $@ '$(make-cmd)' > $(@D)/.$(@F).tmp; \
rm -f $(depfile); \
mv -f $(@D)/.$(@F).tmp $(@D)/.$(@F).cmd)

8
scripts/Makefile.build
View File

@ -178,12 +178,10 @@ cmd_modversions = \
endif
define rule_cc_o_c
$(if $($(quiet)cmd_checksrc),echo ' $($(quiet)cmd_checksrc)';) \
$(cmd_checksrc) \
$(if $($(quiet)cmd_cc_o_c),echo ' $(call escsq,$($(quiet)cmd_cc_o_c))';) \
$(cmd_cc_o_c); \
$(call echo-cmd,checksrc) $(cmd_checksrc) \
$(call echo-cmd,cc_o_c) $(cmd_cc_o_c); \
$(cmd_modversions) \
scripts/basic/fixdep $(depfile) $@ '$(call escsq,$(cmd_cc_o_c))' > $(@D)/.$(@F).tmp; \
scripts/basic/fixdep $(depfile) $@ '$(call make-cmd,cc_o_c)' > $(@D)/.$(@F).tmp; \
rm -f $(depfile); \
mv -f $(@D)/.$(@F).tmp $(@D)/.$(@F).cmd
endef

14
scripts/basic/fixdep.c
View File

@ -132,20 +132,10 @@ void usage(void)
/*
* Print out the commandline prefixed with cmd_<target filename> :=
* If commandline contains '#' escape with '\' so make to not see
* the '#' as a start-of-comment symbol
**/
*/
void print_cmdline(void)
{
char *p = cmdline;
printf("cmd_%s := ", target);
for (; *p; p++) {
if (*p == '#')
printf("\\");
printf("%c", *p);
}
printf("\n\n");
printf("cmd_%s := %s\n\n", target, cmdline);
}
char * str_config = NULL;