asterisk/Makefile.rules
George Joseph 0af6b5de62 build_system: Split COMPILE_DOUBLE from DONT_OPTIMIZE
I can't ever recall actually needing the intermediate files or the checking
that a double compile produces.  What I CAN remember is every DONT_OPTIMIZE
build needing 3 invocations of gcc instead of 1 just to do the checks and
produce those intermediate files.

Having said that, Richard pointed out that the reason for the double compile
was that there were cases in the past where a submitted patch failed to compile
because the submitter never tried it with the optimizations turned on.

To get the best of both worlds, COMPILE_DOUBLE has been split into its own
option.  If DONT_OPTIMIZE is turned on, COMPILE_DOUBLE will also be selected
BUT you can then turn it off if all you need are the debugging symbols.  This
way you have to make an informed decision about disabling COMPILE_DOUBLE.

To allow COMPILE_DOUBLE to be both auto-selected and turned off, a new feature
was added to menuselect.  The <use> element can now contain an "autoselect"
attribute which will turn the used member on but not create a hard dependency.
The cflags.xml implementation for COMPILE_DOUBLE looks like this...

<member name="DONT_OPTIMIZE" displayname="Disable Optimizations ...">
	<use autoselect="yes">COMPILE_DOUBLE</use>
	<support_level>core</support_level>
</member>
<member name="COMPILE_DOUBLE" displayname="Pre-compile with ...>
	<depend>DONT_OPTIMIZE</depend>
	<support_level>core</support_level>
</member>

When DONT_OPTIMIZE is turned on, COMPILE_DOUBLE is turned on because
of the use.
When DONT_OPTIMIZE is turned off, COMPILE_DOUBLE is turned off because
of the depend.
When COMPILE_DOUBLE is turned on, DONT_OPTIMIZE is turned on because
of the depend.
When COMPILE_DOUBLE is turned off, DONT_OPTIMIZE is left as is because
it only uses COMPILE_DOUBLE, it doesn't depend on it.

I also made a few tweaks to the ncurses implementation to move things
left a bit to allow longer descriptions.

Change-Id: Id49ca930ac4b5ec4fc2d8141979ad888da7b1611
2016-03-13 15:11:39 -06:00

201 lines
6.5 KiB
Makefile

#
# Asterisk -- An open source telephony toolkit.
#
# Makefile rules
#
# Copyright (C) 2006-2010, Digium, Inc.
#
# Kevin P. Fleming <kpfleming@digium.com>
#
# This program is free software, distributed under the terms of
# the GNU General Public License
#
# Each command is preceded by a short comment on what to do.
# Prefixing one or the other with @\# or @ or nothing makes the desired
# behaviour. ECHO_PREFIX prefixes the comment, CMD_PREFIX prefixes the command.
-include $(ASTTOPDIR)/makeopts
.PHONY: dist-clean
# If 'make' decides to create intermediate files to satisfy a build requirement
# (like producing a .i from a .c), we want to keep them, so tell make to keep
# all intermediate files
.SECONDARY:
# extra cflags to build dependencies. Recursively expanded.
MAKE_DEPS=-MD -MT $@ -MF .$(subst /,_,$@).d -MP
ifeq ($(findstring ADDRESS_SANITIZER,$(MENUSELECT_CFLAGS)),ADDRESS_SANITIZER)
_ASTLDFLAGS+=-fsanitize=address
_ASTCFLAGS+=-fno-omit-frame-pointer -fsanitize=address
endif
ifeq ($(findstring THREAD_SANITIZER,$(MENUSELECT_CFLAGS)),THREAD_SANITIZER)
_ASTLDFLAGS+=-fsanitize=thread -pie -fPIE
_ASTCFLAGS+=-fno-omit-frame-pointer -pie -fPIE -fsanitize=thread
endif
ifeq ($(findstring LEAK_SANITIZER,$(MENUSELECT_CFLAGS)),LEAK_SANITIZER)
_ASTLDFLAGS+=-fsanitize=leak
_ASTCFLAGS+=-fno-omit-frame-pointer -fsanitize=leak
endif
ifeq ($(findstring UNDEFINED_SANITIZER,$(MENUSELECT_CFLAGS)),UNDEFINED_SANITIZER)
_ASTLDFLAGS+=-fsanitize=undefined
_ASTCFLAGS+=-fno-omit-frame-pointer -fsanitize=undefined
endif
ifeq ($(NOISY_BUILD),)
ECHO_PREFIX=@
CMD_PREFIX=@
else
ECHO_PREFIX=@\#
CMD_PREFIX=
endif
OPTIMIZE?=-O3
ifneq ($(findstring darwin,$(OSARCH)),)
ifeq ($(shell if test `/usr/bin/sw_vers -productVersion | cut -c4` -gt 5; then echo 6; else echo 0; fi),6)
# Snow Leopard/Lion has an issue with this optimization flag on large files (like chan_sip)
OPTIMIZE+=-fno-inline-functions
endif
endif
ifeq ($(findstring DONT_OPTIMIZE,$(MENUSELECT_CFLAGS))$(AST_CODE_COVERAGE),no)
_ASTCFLAGS+=$(OPTIMIZE)
else
_ASTCFLAGS+=-O0
endif
ifeq ($(AST_CODE_COVERAGE),yes)
_ASTCFLAGS_COVERAGE=-ftest-coverage -fprofile-arcs
_ASTLDFLAGS+=-ftest-coverage -fprofile-arcs
else
_ASTCFLAGS_COVERAGE=
endif
ifeq ($(findstring $(CONFIG_CFLAGS),$(_ASTCFLAGS)),)
_ASTCFLAGS+=$(CONFIG_CFLAGS)
endif
# shortcuts for common combinations of flags; these must be recursively expanded so that
# per-target settings will be applied
CC_CFLAGS=$(PTHREAD_CFLAGS) $(_ASTCFLAGS) $(ASTCFLAGS)
CXX_CFLAGS=$(PTHREAD_CFLAGS) $(filter-out -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations $(AST_DECLARATION_AFTER_STATEMENT),$(_ASTCFLAGS) $(ASTCFLAGS))
# Clang -Werror warning suppressions
ifeq ($(C_COMPILER_FAMILY),clang)
CC_CFLAGS+=-Wno-unused-value -Wno-parentheses-equality
endif
ifeq ($(GNU_LD),1)
SO_SUPPRESS_SYMBOLS=-Wl,--version-script,$(subst .so,.exports,$@),--warn-common
ifneq ($(wildcard $(subst .so,.dynamics,$@)),)
SO_SUPPRESS_SYMBOLS+=-Wl,--dynamic-list,$(subst .so,.dynamics,$@)
endif
endif
CC_LDFLAGS_SO=$(PTHREAD_CFLAGS) $(_ASTLDFLAGS) $(SOLINK) $(SO_SUPPRESS_SYMBOLS) $(ASTLDFLAGS)
CXX_LDFLAGS_SO=$(PTHREAD_CFLAGS) $(_ASTLDFLAGS) $(SOLINK) $(SO_SUPPRESS_SYMBOLS) $(ASTLDFLAGS)
CC_LIBS=$(PTHREAD_LIBS) $(LIBS)
CXX_LIBS=$(PTHREAD_LIBS) $(LIBS)
# determine whether to double-compile so that the optimizer can report code path problems
# In this case, we run the preprocessor to produce a .i or .ii file from the source
# code, then compile once with optimizer enabled (and the output to /dev/null),
# and if that doesn't fail then compile again with optimizer disabled
ifeq ($(findstring COMPILE_DOUBLE,$(MENUSELECT_CFLAGS)),COMPILE_DOUBLE)
COMPILE_DOUBLE=yes
endif
ifeq ($(findstring DONT_OPTIMIZE,$(MENUSELECT_CFLAGS))$(AST_DEVMODE),)
_ASTCFLAGS+=$(AST_FORTIFY_SOURCE)
endif
ifeq ($(findstring BUILD_NATIVE,$(MENUSELECT_CFLAGS)),BUILD_NATIVE)
_ASTCFLAGS+=-march=native
endif
%.o: %.s
$(ECHO_PREFIX) echo " [AS] $< -> $@"
ifeq ($(COMPILE_DOUBLE),yes)
$(CMD_PREFIX) $(CC) -o /dev/null -c $< $(CC_CFLAGS) $(OPTIMIZE)
endif
$(CMD_PREFIX) $(CC) -o $@ -c $< $(CC_CFLAGS) $(_ASTCFLAGS_COVERAGE)
%.o: %.i
$(ECHO_PREFIX) echo " [CCi] $< -> $@"
ifneq ($(AST_CLANG_BLOCKS),)
ifeq ($(COMPILE_DOUBLE),yes)
$(CMD_PREFIX) $(CC) -o /dev/null -c $< $(CC_CFLAGS) $(OPTIMIZE) -Wno-unused-command-line-argument
endif
$(CMD_PREFIX) $(CC) -o $@ -c $< $(CC_CFLAGS) $(_ASTCFLAGS_COVERAGE) -Wno-unused-command-line-argument
else
ifeq ($(COMPILE_DOUBLE),yes)
$(CMD_PREFIX) $(CC) -o /dev/null -c $< $(CC_CFLAGS) $(OPTIMIZE)
endif
$(CMD_PREFIX) $(CC) -o $@ -c $< $(CC_CFLAGS) $(_ASTCFLAGS_COVERAGE)
endif
ifneq ($(COMPILE_DOUBLE),yes)
%.o: %.c
$(ECHO_PREFIX) echo " [CC] $< -> $@"
$(CMD_PREFIX) $(CC) -o $@ -c $< $(MAKE_DEPS) $(CC_CFLAGS) $(_ASTCFLAGS_COVERAGE)
endif
%.i: %.c
$(ECHO_PREFIX) echo " [CPP] $< -> $@"
$(CMD_PREFIX) $(CC) -o $@ -E $< $(MAKE_DEPS) $(CC_CFLAGS) $(_ASTCFLAGS_COVERAGE)
%.oo: %.ii
$(ECHO_PREFIX) echo " [CXXi] $< -> $@"
ifeq ($(COMPILE_DOUBLE),yes)
$(CMD_PREFIX) $(CXX) -o /dev/null -c $< $(CXX_CFLAGS) $(OPTIMIZE)
endif
$(CMD_PREFIX) $(CXX) -o $@ -c $< $(CXX_CFLAGS) $(_ASTCFLAGS_COVERAGE)
ifneq ($(COMPILE_DOUBLE),yes)
%.oo: %.cc
$(ECHO_PREFIX) echo " [CXX] $< -> $@"
$(CMD_PREFIX) $(CXX) -o $@ -c $< $(MAKE_DEPS) $(CXX_CFLAGS) $(_ASTCFLAGS_COVERAGE)
endif
%.ii: %.cc
$(ECHO_PREFIX) echo " [CPP] $< -> $@"
$(CMD_PREFIX) $(CXX) -o $@ -E $< $(MAKE_DEPS) $(CXX_CFLAGS) $(_ASTCFLAGS_COVERAGE)
%.so: %.o
ifeq ($(GNU_LD),1)
$(CMD_PREFIX) $(ASTTOPDIR)/build_tools/make_linker_version_script $* "$(LINKER_SYMBOL_PREFIX)" "$(ASTTOPDIR)"
endif
$(ECHO_PREFIX) echo " [LD] $^ -> $@"
$(CMD_PREFIX) $(CC) $(STATIC_BUILD) -o $@ $(CC_LDFLAGS_SO) $^ $(CC_LIBS)
%.so: %.oo
ifeq ($(GNU_LD),1)
$(CMD_PREFIX) $(ASTTOPDIR)/build_tools/make_linker_version_script $* "$(LINKER_SYMBOL_PREFIX)" "$(ASTTOPDIR)"
endif
$(ECHO_PREFIX) echo " [LDXX] $^ -> $@"
$(CMD_PREFIX) $(CXX) $(STATIC_BUILD) -o $@ $(CXX_LDFLAGS_SO) $^ $(CXX_LIBS)
%.eo: %.o
$(ECHO_PREFIX) echo " [EMBED] $< -> $@"
$(CMD_PREFIX) $(ASTTOPDIR)/build_tools/make_linker_eo_script $* > .$@.ld
$(CMD_PREFIX) $(LD) -r -T .$@.ld -o $@ $<
$(CMD_PREFIX) rm -f .$@.ld
%.eo: %.oo
$(ECHO_PREFIX) echo " [EMBED] $< -> $@"
$(CMD_PREFIX) $(ASTTOPDIR)/build_tools/make_linker_eo_script $* > .$@.ld
$(CMD_PREFIX) $(LD) -r -T .$@.ld -o $@ $<
$(CMD_PREFIX) rm -f .$@.ld
%: %.o
$(ECHO_PREFIX) echo " [LD] $^ -> $@"
$(CMD_PREFIX) $(CXX) $(STATIC_BUILD) -o $@ $(PTHREAD_CFLAGS) $(_ASTLDFLAGS) $^ $(CXX_LIBS) $(ASTLDFLAGS)
dist-clean:: clean