eb9b9a6f5a
-O6 is very much not-a-thing. Really, this should've been dropped
entirely in 49b3cd306e ("tools: Set the maximum optimization level
according to the compiler being used") instead of just passing it for
not-Clang.
Just collapse it down to -O3, instead of "-O6 unless Clang, in which case
-O3".
GCC interprets > -O3 as -O3. It doesn't even interpret > -O3 as -Ofast,
which is a good thing, given -Ofast has specific (non-)requirements for
code built using it. So, this does nothing except look a bit daft.
Remove the silliness and also save a few lines in the Makefiles accordingly.
Reviewed-by: Ian Rogers <irogers@google.com>
Reviewed-by: Jesper Juhl <jesperjuhl76@gmail.com>
Signed-off-by: Sam James <sam@gentoo.org>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Bill Wendling <morbo@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Justin Stitt <justinstitt@google.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: llvm@lists.linux.dev
Link: https://lore.kernel.org/r/4f01524fa4ea91c7146a41e26ceaf9dae4c127e4.1725821201.git.sam@gentoo.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
3.1 KiB
SPDX-License-Identifier: GPL-2.0
include ../../scripts/Makefile.include include ../../scripts/utilities.mak # QUIET_CLEAN
ifeq ($(srctree),) srctree := $(patsubst %/,%,$(dir $(CURDIR))) srctree := $(patsubst %/,%,$(dir $(srctree))) srctree := $(patsubst %/,%,$(dir $(srctree))) #$(info Determined 'srctree' to be $(srctree)) endif
CC ?= $(CROSS_COMPILE)gcc AR ?= $(CROSS_COMPILE)ar LD ?= $(CROSS_COMPILE)ld
MAKEFLAGS += --no-print-directory
INSTALL = install
Use DESTDIR for installing into a different root directory.
This is useful for building a package. The program will be
installed in this directory as if it was the root directory.
Then the build tool can move it later.
DESTDIR ?= DESTDIR_SQ = '$(subst ',''',$(DESTDIR))'
LIBFILE = $(OUTPUT)libapi.a
CFLAGS := $(EXTRA_WARNINGS) $(EXTRA_CFLAGS) CFLAGS += -ggdb3 -Wall -Wextra -std=gnu99 -U_FORTIFY_SOURCE -fPIC
ifeq ($(DEBUG),0) CFLAGS += -O3 endif
ifeq ($(DEBUG),0) CFLAGS += -D_FORTIFY_SOURCE endif
Treat warnings as errors unless directed not to
ifneq ($(WERROR),0) CFLAGS += -Werror endif
CFLAGS += -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 CFLAGS += -I$(srctree)/tools/lib/api CFLAGS += -I$(srctree)/tools/include
RM = rm -f
API_IN := $(OUTPUT)libapi-in.o
ifeq ($(LP64), 1) libdir_relative = lib64 else libdir_relative = lib endif
prefix ?= libdir = $(prefix)/$(libdir_relative)
Shell quotes
libdir_SQ = $(subst ',''',$(libdir))
all:
export srctree OUTPUT CC LD CFLAGS V include $(srctree)/tools/build/Makefile.include include $(srctree)/tools/scripts/Makefile.include
all: fixdep $(LIBFILE)
$(API_IN): FORCE @$(MAKE) $(build)=libapi
$(LIBFILE): $(API_IN) $(QUIET_AR)$(RM) $@ && $(AR) rcs $@ $(API_IN)
define do_install_mkdir
if [ ! -d '$(DESTDIR_SQ)$1' ]; then
$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$1';
fi
endef
define do_install
if [ ! -d '$2' ]; then
$(INSTALL) -d -m 755 '$2';
fi;
$(INSTALL) $1 $(if $3,-m $3,) '$2'
endef
install_lib: $(LIBFILE)
$(call QUIET_INSTALL, $(LIBFILE))
$(call do_install_mkdir,$(libdir_SQ));
cp -fpR $(LIBFILE) $(DESTDIR)$(libdir_SQ)
HDRS := cpu.h debug.h io.h FD_HDRS := fd/array.h FS_HDRS := fs/fs.h fs/tracing_path.h INSTALL_HDRS_PFX := $(DESTDIR)$(prefix)/include/api INSTALL_HDRS := $(addprefix $(INSTALL_HDRS_PFX)/, $(HDRS)) INSTALL_FD_HDRS := $(addprefix $(INSTALL_HDRS_PFX)/, $(FD_HDRS)) INSTALL_FS_HDRS := $(addprefix $(INSTALL_HDRS_PFX)/, $(FS_HDRS))
$(INSTALL_HDRS): $(INSTALL_HDRS_PFX)/%.h: %.h
$(call QUIET_INSTALL, $@)
$(call do_install,$<,$(INSTALL_HDRS_PFX)/,644)
$(INSTALL_FD_HDRS): $(INSTALL_HDRS_PFX)/fd/%.h: fd/%.h
$(call QUIET_INSTALL, $@)
$(call do_install,$<,$(INSTALL_HDRS_PFX)/fd/,644)
$(INSTALL_FS_HDRS): $(INSTALL_HDRS_PFX)/fs/%.h: fs/%.h
$(call QUIET_INSTALL, $@)
$(call do_install,$<,$(INSTALL_HDRS_PFX)/fs/,644)
install_headers: $(INSTALL_HDRS) $(INSTALL_FD_HDRS) $(INSTALL_FS_HDRS) $(call QUIET_INSTALL, libapi_headers)
install: install_lib install_headers
clean:
$(call QUIET_CLEAN, libapi) $(RM) $(LIBFILE);
find $(or $(OUTPUT),.) -name *.o -or -name *.o.cmd -or -name *.o.d | xargs $(RM)
FORCE:
.PHONY: clean FORCE