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Reorganized debug flags
git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/tools/make/trunk@28717 72102866-910b-0410-8b05-ffd578937521
This commit is contained in:
Nicola Pero
parent
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7 changed files with 2635 additions and 3232 deletions
18
ChangeLog
18
ChangeLog
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@ -1,3 +1,19 @@
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2009-09-20 Nicola Pero <nicola.pero@meta-innovation.com>
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* configure.ac (--enable-debug-by-default): New option which
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allows you to change if gnustep-make should build with debug=yes
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or debug=no by default. Store the configuration choice in
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GNUSTEP_DEFAULT_DEBUG. Make debug=no the default, so that normally
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-g -O2 is the default set of compilation flags used.
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* configure: Regenerated.
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* common.make: If the 'debug' variable is empty, set it to
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GNUSTEP_DEFAULT_DEBUG. If debug=yes, filter the -O% flags.
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(ADDITIONAL_FLAGS): If debug=yes, only add -g if it is not already
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present in OPTFLAG.
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* config.make.in (GNUSTEP_DEFAULT_DEBUG): New variable.
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* Documentation/releasenotes.texi: Updated release notes.
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* RELEASENOTES: Regenerated.
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2009-09-19 Nicola Pero <nicola.pero@meta-innovation.com>
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* Instance/Documentation/texi.make ($(GNUSTEP_INSTANCE)_toc.html):
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@ -9,7 +25,7 @@
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2009-09-19 Nicola Pero <nicola.pero@meta-innovation.com>
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* Documentation/releasenotes.texi: Updated release notes.
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* RELEASENOTES: Regenerated.
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* RELEASENOTES: Regenerated.
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2009-09-19 Nicola Pero <nicola.pero@meta-innovation.com>
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@ -22,13 +22,16 @@ directory containing the html files was not being removed when doing a
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'make clean'. Starting with version 2.2.1, 'make clean' removes the
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directory too.
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@item debug=yes no longer strips -O2
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gnustep-make no longer strips the -Ox optimization flag when compiling
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C/Objective-C/C++/Objective-C++ code with debug=yes; as a consequence,
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on most platforms debug=yes (which is the default) now builds using -g
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-O2 instead of just -g. If you do not want the -O2 flag, you can
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override the OPTFLAG variable on the make command line (or in your
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GNUmakefile) as in 'make OPTFLAG='.
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@item debug=no made the default
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gnustep-make now builds using debug=no by default. As a consequence,
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on most platforms C/Objective-C/C++ code is now built by default using
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-g -O2 instead of just -g. If you do not want the -O2 flag, you can
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simply build using 'make debug=yes'. You can also use the new
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./configure --enable-debug-by-default option to make 'debug=yes' the
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default flag that is always used when compiling if nothing else is
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specified. If you do not want the debugging symbols, remember that
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you can use the 'make strip=yes' option to have them stripped out from
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all object files when they are installed.
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@end table
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18
RELEASENOTES
18
RELEASENOTES
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@ -23,13 +23,17 @@ using a newer version of the make system.
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doing a 'make clean'. Starting with version 2.2.1, 'make clean'
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removes the directory too.
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`debug=yes no longer strips -O2'
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gnustep-make no longer strips the -Ox optimization flag when
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compiling C/Objective-C/C++/Objective-C++ code with debug=yes; as
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a consequence, on most platforms debug=yes (which is the default)
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now builds using -g -O2 instead of just -g. If you do not want
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the -O2 flag, you can override the OPTFLAG variable on the make
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command line (or in your GNUmakefile) as in 'make OPTFLAG='.
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`debug=no made the default'
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gnustep-make now builds using debug=no by default. As a
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consequence, on most platforms C/Objective-C/C++ code is now built
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by default using -g -O2 instead of just -g. If you do not want
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the -O2 flag, you can simply build using 'make debug=yes'. You
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can also use the new ./configure -enable-debug-by-default option
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to make 'debug=yes' the default flag that is always used when
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compiling if nothing else is specified. If you do not want the
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debugging symbols, remember that you can use the 'make strip=yes'
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option to have them stripped out from all object files when they
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are installed.
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1.2 Version 2.2.0
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47
common.make
47
common.make
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@ -645,21 +645,48 @@ ifeq ($(profile), yes)
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endif
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endif
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# The default set of compilation flags are set in config.make in the
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# OPTFLAGS variable. They should default to -g -O2. These should be
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# an "average" set of flags, midway between debugging and performance;
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# they are used, unchanged, when we build with debug=no (the default
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# unless --enable-debug-by-default was used when configuring
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# gnustep-make). Using the set of GCC flags -g -O2 as default is
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# recommended by the GNU Coding Standards and is common practice. If
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# you specify debug=yes, you want to do a debug build, so we remove
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# the optimization flag that makes it harder to debug. If you specify
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# strip=yes, you do not want debugging symbols, so we strip all
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# executables before installing them. This gives you three main
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# options to use in a default setup:
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#
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# make (some optimization, and some debugging symbols are used)
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# make debug=yes (removes optimization flags)
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# make strip=yes (removes debugging symbols)
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#
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# By default we build using debug=no (unless --enable-debug-by-default
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# was specified when configuring gnustep-make) - so that the default
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# compilation flags should be -g -O2. This is according to the GNU
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# Coding Standards.
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ifeq ($(debug),)
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debug = $(GNUSTEP_DEFAULT_DEBUG)
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endif
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ifeq ($(debug), yes)
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# Optimisation must be removed to permit debugging
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# Optimization flags are filtered out as they make debugging harder.
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OPTFLAG := $(filter-out -O%, $(OPTFLAG))
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endif
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# If OPTFLAG does not already include -g, add it here.
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ifneq ($(filter -g, $(OPTFLAG)), -g)
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ADDITIONAL_FLAGS += -g
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endif
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# Add standard debug compiler flags.
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ADDITIONAL_FLAGS += -Wall -DDEBUG -fno-omit-frame-pointer
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# Enable debug by default. This is according to the GNU Coding
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# Standards.
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ifneq ($(debug), no)
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debug = yes
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endif
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ifeq ($(debug), yes)
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ADDITIONAL_FLAGS += -g -Wall -DDEBUG -fno-omit-frame-pointer
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# The following is for Java.
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INTERNAL_JAVACFLAGS += -g -deprecation
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else
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# The default OPTFLAG set in config.make are used to compile.
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# The following is for Java.
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INTERNAL_JAVACFLAGS += -O
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endif
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@ -44,6 +44,12 @@ CPP = @CPP@
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CXX = @CXX@
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CCFLAGS = @CXXFLAGS@
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# If the 'debug' variable is not specified on the command-line or in
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# the environment, we set it to the GNUSTEP_DEFAULT_DEBUG value. This
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# is normally 'no,', but can be changed to 'yes' when gnustep-make is
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# configured.
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GNUSTEP_DEFAULT_DEBUG = @GNUSTEP_DEFAULT_DEBUG@
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ifeq ($(OBJC_RUNTIME_LIB), gnugc)
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ifeq ($(OBJC_LIB_FLAG),)
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OBJC_LIB_FLAG = -lobjc_gc
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34
configure.ac
34
configure.ac
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@ -1483,6 +1483,40 @@ AC_SUBST(INCLUDES)
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AC_SUBST(LIB_DIR)
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AC_SUBST(OBJCFLAGS)
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#--------------------------------------------------------------------
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# Check if we need to enable debug=yes builds by default
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#--------------------------------------------------------------------
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AC_MSG_CHECKING(if we should enable 'make debug=yes' by default)
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AC_ARG_ENABLE(debug-by-default, [
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--enable-debug-by-default
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Enable building with 'make debug=yes' by default. When you use
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gnustep-make to build software, you have a choice of using
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debug=yes or debug=no. The debug=no will use the default compiler
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flags determined when gnustep-make was configured (usually -g -O2),
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while debug=yes will remove the optimization flags and add a
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number of debugging compiler flags. If you do not specify the
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--enable-debug-by-default option, gnustep-make will default to
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building with debug=no when nothing is specified. If you
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specify the --enable-debug-by-default option, gnustep-make will
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default to building with debug=yes instead, which can be handy if you
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always want to compile software with debug=yes and want to avoid
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having to type debug=yes each time you compile (an alternative
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is to define the variable debug=yes in your shell). If you are
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unsure, you should stick with the default and ignore this option.
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],
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ac_cv_debug_by_default=$enableval,
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ac_cv_debug_by_default="undefined")
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if test "$ac_cv_debug_by_default" = "yes"; then
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GNUSTEP_DEFAULT_DEBUG=yes;
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AC_MSG_RESULT(yes);
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else
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GNUSTEP_DEFAULT_DEBUG=no;
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AC_MSG_RESULT(no);
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fi
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AC_SUBST(GNUSTEP_DEFAULT_DEBUG)
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#--------------------------------------------------------------------
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# Check for $(info ...) function in GNU make
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#--------------------------------------------------------------------
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