Makefile: don't create a ".build/.build/" for cocci, fix output

Fix a couple of issues in the recently merged 0f3c55d4c2b (Merge branch 'ab/coccicheck-incremental' into next, 2022-11-08): In copying over the "contrib/coccinelle/" rules to ".build/contrib/coccinelle/" we inadvertently ended up with a ".build/.build/contrib/coccinelle/" as well. We'd generate the per-file patches in the former, and keep the rule and overall result in the latter. E.g. running: make contrib/coccinelle/free.cocci.patch COCCI_SOURCES="attr.c grep.c" Would, per "tree -a .build" yield the following result: .build ├── .build │   └── contrib │   └── coccinelle │   └── free.cocci.patch │   ├── attr.c │   ├── attr.c.log │   ├── grep.c │   └── grep.c.log └── contrib └── coccinelle ├── FOUND_H_SOURCES ├── free.cocci └── free.cocci.patch Now we'll instead generate all of our files in ".build/contrib/coccinelle/". Fixing this required renaming the directory where we keep our per-file patches, as we'd otherwise conflict with the result. Now the per-file patch directory is named e.g. "free.cocci.d". And the end result will now be: .build └── contrib └── coccinelle ├── FOUND_H_SOURCES ├── free.cocci ├── free.cocci.d │   ├── attr.c.patch │   ├── attr.c.patch.log │   ├── grep.c.patch │   └── grep.c.patch.log └── free.cocci.patch The per-file patches now have a ".patch" file suffix, which fixes another issue reported against 0f3c55d4c2b: The summary output was confusing. Before for the "make" command above we'd emit: [...] MKDIR -p .build/contrib/coccinelle CP contrib/coccinelle/free.cocci .build/contrib/coccinelle/free.cocci GEN .build/contrib/coccinelle/FOUND_H_SOURCES MKDIR -p .build/.build/contrib/coccinelle/free.cocci.patch SPATCH .build/.build/contrib/coccinelle/free.cocci.patch/grep.c SPATCH .build/.build/contrib/coccinelle/free.cocci.patch/attr.c SPATCH CAT $^ >.build/contrib/coccinelle/free.cocci.patch CP .build/contrib/coccinelle/free.cocci.patch contrib/coccinelle/free.cocci.patch But now we'll instead emit (identical output at the start omitted): [...] MKDIR -p .build/contrib/coccinelle/free.cocci.d SPATCH grep.c >.build/contrib/coccinelle/free.cocci.d/grep.c.patch SPATCH attr.c >.build/contrib/coccinelle/free.cocci.d/attr.c.patch SPATCH CAT .build/contrib/coccinelle/free.cocci.d/**.patch >.build/contrib/coccinelle/free.cocci.patch CP .build/contrib/coccinelle/free.cocci.patch contrib/coccinelle/free.cocci.patch I.e. we have an "SPATCH" line that makes it clear that we're running against the "{attr,grep}.c" file. The "SPATCH CAT" is then altered to correspond to it, showing that we're concatenating the "free.cocci.d/**.patch" files into one generated "free.cocci.patch" at the end. Reported-by: SZEDER Gábor <szeder.dev@gmail.com> Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Taylor Blau <me@ttaylorr.com>

Ævar Arnfjörð Bjarmason committed Nov 10, 2022 at 17:14 UTC 0d12792f5f8033027980ae80ae10700ad0841c1e
2 files changed +8 -8
Makefile
+6 -6
@@ -3231,14 +3231,14 @@ endif
3231 define cocci-rule
3232
3233 ## Rule for .build/$(1).patch/$(2); Params:
3234 -# $(1) = e.g. "free.cocci"
3234 +# $(1) = e.g. ".build/contrib/coccinelle/free.cocci"
3235 # $(2) = e.g. "grep.c"
3236 # $(3) = e.g. "grep.o"
3237 -COCCI_$(1:.build/contrib/coccinelle/%.cocci=%) += .build/$(1).patch/$(2)
3238 -.build/$(1).patch/$(2): GIT-SPATCH-DEFINES
3239 -.build/$(1).patch/$(2): $(if $(and $(SPATCH_USE_O_DEPENDENCIES),$(wildcard $(3))),$(3),.build/contrib/coccinelle/FOUND_H_SOURCES)
3240 -.build/$(1).patch/$(2): $(1)
3241 -.build/$(1).patch/$(2): .build/$(1).patch/% : %
3237 +COCCI_$(1:.build/contrib/coccinelle/%.cocci=%) += $(1).d/$(2).patch
3238 +$(1).d/$(2).patch: GIT-SPATCH-DEFINES
3239 +$(1).d/$(2).patch: $(if $(and $(SPATCH_USE_O_DEPENDENCIES),$(wildcard $(3))),$(3),.build/contrib/coccinelle/FOUND_H_SOURCES)
3240 +$(1).d/$(2).patch: $(1)
3241 +$(1).d/$(2).patch: $(1).d/%.patch : %
3242 $$(call mkdir_p_parent_template)
3243 $$(QUIET_SPATCH)if ! $$(SPATCH) $$(SPATCH_FLAGS) \
3244 $$(SPATCH_INCLUDE_FLAGS) \
shared.mak
+2 -2
@@ -72,9 +72,9 @@ ifndef V
72 QUIET_RC = @echo ' ' RC $@;
73
74 ## Used in "Makefile": SPATCH
75 - QUIET_SPATCH = @echo ' ' SPATCH $@;
75 + QUIET_SPATCH = @echo ' ' SPATCH $< \>$@;
76 QUIET_SPATCH_TEST = @echo ' ' SPATCH TEST $(@:.build/%=%);
77 - QUIET_SPATCH_CAT = @echo ' ' SPATCH CAT $$^ \>$@;
77 + QUIET_SPATCH_CAT = @echo ' ' SPATCH CAT $(@:%.patch=%.d/)\*\*.patch \>$@;
78
79 ## Used in "Documentation/Makefile"
80 QUIET_ASCIIDOC = @echo ' ' ASCIIDOC $@;