Re: [PATCH 09/19] perf tools: Fix 32-bit cross build

From: Arnaldo Carvalho de Melo
Date: Mon Oct 21 2013 - 10:12:43 EST


Em Fri, Oct 18, 2013 at 03:29:06PM +0300, Adrian Hunter escreveu:
> Setting EXTRA_CFLAGS=-m32 did not work because CFLAGS
> was not passed around.

<SNIP>

> index c873e03..699cdb7 100644
> --- a/tools/perf/Makefile.perf
> +++ b/tools/perf/Makefile.perf
> @@ -706,7 +706,7 @@ $(LIB_FILE): $(LIB_OBJS)
> TE_SOURCES = $(wildcard $(TRACE_EVENT_DIR)*.[ch])
>
> $(LIBTRACEEVENT): $(TE_SOURCES)
> - $(QUIET_SUBDIR0)$(TRACE_EVENT_DIR) $(QUIET_SUBDIR1) O=$(OUTPUT) libtraceevent.a
> + $(QUIET_SUBDIR0)$(TRACE_EVENT_DIR) $(QUIET_SUBDIR1) O=$(OUTPUT) CFLAGS="-g -Wall $(EXTRA_CFLAGS)" libtraceevent.a

So are we unconditionally set -g and -Wall?

And by making CFLAGS be $(EXTRA_CFLAGS) implies EXTRA_CFLAGS already
contains "$(CFLAGS)?

- Arnaldo

>
> $(LIBTRACEEVENT)-clean:
> $(call QUIET_CLEAN, libtraceevent)
> diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
> index c516d6b..c94a06b 100644
> --- a/tools/perf/config/Makefile
> +++ b/tools/perf/config/Makefile
> @@ -92,7 +92,7 @@ endif
>
> feature_check = $(eval $(feature_check_code))
> define feature_check_code
> - feature-$(1) := $(shell $(MAKE) OUTPUT=$(OUTPUT_FEATURES) LDFLAGS=$(LDFLAGS) -C config/feature-checks test-$1 >/dev/null 2>/dev/null && echo 1 || echo 0)
> + feature-$(1) := $(shell $(MAKE) OUTPUT=$(OUTPUT_FEATURES) CFLAGS="$(CFLAGS)" LDFLAGS=$(LDFLAGS) -C config/feature-checks test-$1 >/dev/null 2>/dev/null && echo 1 || echo 0)
> endef
>
> feature_set = $(eval $(feature_set_code))
> @@ -169,7 +169,7 @@ ifeq ($(feature-all), 1)
> #
> $(foreach feat,$(CORE_FEATURE_TESTS),$(call feature_set,$(feat)))
> else
> - $(shell $(MAKE) OUTPUT=$(OUTPUT_FEATURES) LDFLAGS=$(LDFLAGS) -i -j -C config/feature-checks $(CORE_FEATURE_TESTS) >/dev/null 2>&1)
> + $(shell $(MAKE) OUTPUT=$(OUTPUT_FEATURES) CFLAGS="$(CFLAGS)" LDFLAGS=$(LDFLAGS) -i -j -C config/feature-checks $(CORE_FEATURE_TESTS) >/dev/null 2>&1)
> $(foreach feat,$(CORE_FEATURE_TESTS),$(call feature_check,$(feat)))
> endif
>
> diff --git a/tools/perf/config/feature-checks/Makefile b/tools/perf/config/feature-checks/Makefile
> index 452b67c..353c00c 100644
> --- a/tools/perf/config/feature-checks/Makefile
> +++ b/tools/perf/config/feature-checks/Makefile
> @@ -31,7 +31,7 @@ CC := $(CC) -MD
>
> all: $(FILES)
>
> -BUILD = $(CC) $(LDFLAGS) -o $(OUTPUT)$@ $@.c
> +BUILD = $(CC) $(CFLAGS) $(LDFLAGS) -o $(OUTPUT)$@ $@.c
>
> ###############################
>
> --
> 1.7.11.7
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