Merge branch 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild

* 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
  Kbuild: Use dtc's -d (dependency) option
  dtc: Implement -d option to write out a dependency file
  kbuild: Fix comment in Makefile.lib
  scripts/genksyms: clean lex/yacc generated files
  kbuild: Correctly deal with make options which contain an "s"
This commit is contained in:
Linus Torvalds 2012-01-16 14:34:54 -08:00
commit c63dbbd526
10 changed files with 40 additions and 13 deletions

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@ -312,7 +312,7 @@ endif
# If the user is running make -s (silent mode), suppress echoing of
# commands
ifneq ($(findstring s,$(MAKEFLAGS)),)
ifneq ($(filter s% -s%,$(MAKEFLAGS)),)
quiet=silent_
endif

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@ -59,9 +59,11 @@ $(obj)/zImage: $(obj)/compressed/vmlinux FORCE
endif
targets += $(dtb-y)
# Rule to build device tree blobs
$(obj)/%.dtb: $(src)/dts/%.dts
$(call cmd,dtc)
$(obj)/%.dtb: $(src)/dts/%.dts FORCE
$(call if_changed_dep,dtc)
$(obj)/dtbs: $(addprefix $(obj)/, $(dtb-y))

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@ -53,6 +53,6 @@ $(obj)/simpleImage.%: vmlinux FORCE
DTC_FLAGS := -p 1024
$(obj)/%.dtb: $(src)/dts/%.dts FORCE
$(call cmd,dtc)
$(call if_changed_dep,dtc)
clean-files += *.dtb simpleImage.*.unstrip linux.bin.ub

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@ -11,5 +11,5 @@ clean-files := *.dtb.S
#DTC_FLAGS ?= -p 1024
$(obj)/%.dtb: $(src)/dts/%.dts
$(call cmd,dtc)
$(obj)/%.dtb: $(src)/dts/%.dts FORCE
$(call if_changed_dep,dtc)

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@ -345,8 +345,8 @@ $(obj)/treeImage.%: vmlinux $(obj)/%.dtb $(wrapperbits)
$(call if_changed,wrap,treeboot-$*,,$(obj)/$*.dtb)
# Rule to build device tree blobs
$(obj)/%.dtb: $(src)/dts/%.dts
$(call cmd,dtc)
$(obj)/%.dtb: $(src)/dts/%.dts FORCE
$(call if_changed_dep,dtc)
# If there isn't a platform selected then just strip the vmlinux.
ifeq (,$(image-y))

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@ -93,9 +93,9 @@ obj-dirs := $(addprefix $(obj)/,$(obj-dirs))
# already
# $(modname_flags) #defines KBUILD_MODNAME as the name of the module it will
# end up in (or would, if it gets compiled in)
# Note: It's possible that one object gets potentially linked into more
# than one module. In that case KBUILD_MODNAME will be set to foo_bar,
# where foo and bar are the name of the modules.
# Note: Files that end up in two or more modules are compiled without the
# KBUILD_MODNAME definition. The reason is that any made-up name would
# differ in different configs.
name-fix = $(subst $(comma),_,$(subst -,_,$1))
basename_flags = -D"KBUILD_BASENAME=KBUILD_STR($(call name-fix,$(basetarget)))"
modname_flags = $(if $(filter 1,$(words $(modname))),\
@ -264,7 +264,7 @@ $(obj)/%.dtb.S: $(obj)/%.dtb
$(call cmd,dt_S_dtb)
quiet_cmd_dtc = DTC $@
cmd_dtc = $(objtree)/scripts/dtc/dtc -O dtb -o $@ -b 0 $(DTC_FLAGS) $<
cmd_dtc = $(objtree)/scripts/dtc/dtc -O dtb -o $@ -b 0 $(DTC_FLAGS) -d $(depfile) $<
# Bzip2
# ---------------------------------------------------------------------------

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@ -71,6 +71,7 @@ static void __attribute__ ((noreturn)) usage(void)
fprintf(stderr, "\t\t\tasm - assembler source\n");
fprintf(stderr, "\t-V <output version>\n");
fprintf(stderr, "\t\tBlob version to produce, defaults to %d (relevant for dtb\n\t\tand asm output only)\n", DEFAULT_FDT_VERSION);
fprintf(stderr, "\t-d <output dependency file>\n");
fprintf(stderr, "\t-R <number>\n");
fprintf(stderr, "\t\tMake space for <number> reserve map entries (relevant for \n\t\tdtb and asm output only)\n");
fprintf(stderr, "\t-S <bytes>\n");
@ -99,6 +100,7 @@ int main(int argc, char *argv[])
const char *inform = "dts";
const char *outform = "dts";
const char *outname = "-";
const char *depname = NULL;
int force = 0, check = 0, sort = 0;
const char *arg;
int opt;
@ -111,7 +113,8 @@ int main(int argc, char *argv[])
minsize = 0;
padsize = 0;
while ((opt = getopt(argc, argv, "hI:O:o:V:R:S:p:fcqb:vH:s")) != EOF) {
while ((opt = getopt(argc, argv, "hI:O:o:V:d:R:S:p:fcqb:vH:s"))
!= EOF) {
switch (opt) {
case 'I':
inform = optarg;
@ -125,6 +128,9 @@ int main(int argc, char *argv[])
case 'V':
outversion = strtol(optarg, NULL, 0);
break;
case 'd':
depname = optarg;
break;
case 'R':
reservenum = strtol(optarg, NULL, 0);
break;
@ -188,6 +194,14 @@ int main(int argc, char *argv[])
fprintf(stderr, "DTC: %s->%s on file \"%s\"\n",
inform, outform, arg);
if (depname) {
depfile = fopen(depname, "w");
if (!depfile)
die("Couldn't open dependency file %s: %s\n", depname,
strerror(errno));
fprintf(depfile, "%s:", outname);
}
if (streq(inform, "dts"))
bi = dt_from_source(arg);
else if (streq(inform, "fs"))
@ -197,6 +211,11 @@ int main(int argc, char *argv[])
else
die("Unknown input format \"%s\"\n", inform);
if (depfile) {
fputc('\n', depfile);
fclose(depfile);
}
if (cmdline_boot_cpuid != -1)
bi->boot_cpuid_phys = cmdline_boot_cpuid;

View file

@ -40,6 +40,7 @@ static char *dirname(const char *path)
return NULL;
}
FILE *depfile; /* = NULL */
struct srcfile_state *current_srcfile; /* = NULL */
/* Detect infinite include recursion. */
@ -67,6 +68,9 @@ FILE *srcfile_relative_open(const char *fname, char **fullnamep)
strerror(errno));
}
if (depfile)
fprintf(depfile, " %s", fullname);
if (fullnamep)
*fullnamep = fullname;
else

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@ -30,6 +30,7 @@ struct srcfile_state {
struct srcfile_state *prev;
};
extern FILE *depfile; /* = NULL */
extern struct srcfile_state *current_srcfile; /* = NULL */
FILE *srcfile_relative_open(const char *fname, char **fullnamep);

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@ -11,3 +11,4 @@ HOSTCFLAGS_lex.lex.o := -I$(src)
# dependencies on generated files need to be listed explicitly
$(obj)/lex.lex.o: $(obj)/keywords.hash.c $(obj)/parse.tab.h
clean-files := keywords.hash.c lex.lex.c parse.tab.c parse.tab.h