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qt5base-lts/mkspecs/common/gcc-base.conf

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Initial import from the monolithic Qt. This is the beginning of revision history for this module. If you want to look at revision history older than this, please refer to the Qt Git wiki for how to use Git history grafting. At the time of writing, this wiki is located here: http://qt.gitorious.org/qt/pages/GitIntroductionWithQt If you have already performed the grafting and you don't see any history beyond this commit, try running "git log" with the "--follow" argument. Branched from the monolithic repo, Qt master branch, at commit 896db169ea224deb96c59ce8af800d019de63f12
2011-04-27 10:05:43 +00:00
#
# This file is used as a basis for the following compilers:
#
# - The GNU C++ compiler (g++)
# - LLVM
# - Clang
#
# Platform-specific options shared by these compilers are put into:
#
Rename gcc-base-macx.conf to gcc-base-mac.conf and use it for iOS as well The only difference between the two is that iOS append @executable_path/ to QMAKE_LFLAGS_SONAME, but since shared libraries are not supported on iOS anyways, this is not really something we have to care about. Change-Id: I4797a4dfb94d9b3af03af22618351b98b48f8255 Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com> Reviewed-by: Richard Moe Gustavsen <richard.gustavsen@digia.com>
2013-03-02 14:46:37 +00:00
# - gcc-base-mac.conf
Initial import from the monolithic Qt. This is the beginning of revision history for this module. If you want to look at revision history older than this, please refer to the Qt Git wiki for how to use Git history grafting. At the time of writing, this wiki is located here: http://qt.gitorious.org/qt/pages/GitIntroductionWithQt If you have already performed the grafting and you don't see any history beyond this commit, try running "git log" with the "--follow" argument. Branched from the monolithic repo, Qt master branch, at commit 896db169ea224deb96c59ce8af800d019de63f12
2011-04-27 10:05:43 +00:00
# - gcc-base-unix.conf
#
# These base files are then combined with configurations for each compiler:
#
# - g++-base.conf
# - g++-macx.conf
# - g++-unix.conf
# - llvm.conf
# - clang.conf
#
# The combination happens in the top level mkspec, by including a platform-
Rename gcc-base-macx.conf to gcc-base-mac.conf and use it for iOS as well The only difference between the two is that iOS append @executable_path/ to QMAKE_LFLAGS_SONAME, but since shared libraries are not supported on iOS anyways, this is not really something we have to care about. Change-Id: I4797a4dfb94d9b3af03af22618351b98b48f8255 Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com> Reviewed-by: Richard Moe Gustavsen <richard.gustavsen@digia.com>
2013-03-02 14:46:37 +00:00
# specific version of the base-file, for example gcc-base-mac.conf, and then
Initial import from the monolithic Qt. This is the beginning of revision history for this module. If you want to look at revision history older than this, please refer to the Qt Git wiki for how to use Git history grafting. At the time of writing, this wiki is located here: http://qt.gitorious.org/qt/pages/GitIntroductionWithQt If you have already performed the grafting and you don't see any history beyond this commit, try running "git log" with the "--follow" argument. Branched from the monolithic repo, Qt master branch, at commit 896db169ea224deb96c59ce8af800d019de63f12
2011-04-27 10:05:43 +00:00
# a (possibly platform-specific) version of the actual compiler configuration,
# for example g++-macx.conf.
#
Whitespace cleanup: remove trailing whitespace Remove all trailing whitespace from the following list of files: *.cpp *.h *.conf *.qdoc *.pro *.pri *.mm *.rc *.pl *.qps *.xpm *.txt *README excluding 3rdparty, test-data and auto generated code. Note A): the only non 3rdparty c++-files that still have trailing whitespace after this change are: * src/corelib/codecs/cp949codetbl_p.h * src/corelib/codecs/qjpunicode.cpp * src/corelib/codecs/qbig5codec.cpp * src/corelib/xml/qxmlstream_p.h * src/tools/qdoc/qmlparser/qqmljsgrammar.cpp * src/tools/uic/ui4.cpp * tests/auto/other/qtokenautomaton/tokenizers/* * tests/benchmarks/corelib/tools/qstring/data.cpp * util/lexgen/tokenizer.cpp Note B): in about 30 files some overlapping 'leading tab' and 'TAB character in non-leading whitespace' issues have been fixed to make the sanity bot happy. Plus some general ws-fixes here and there as asked for during review. Change-Id: Ia713113c34d82442d6ce4d93d8b1cf545075d11d Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
2013-03-14 23:42:15 +00:00
# If you are making changes to any of these files, please consider the
Initial import from the monolithic Qt. This is the beginning of revision history for this module. If you want to look at revision history older than this, please refer to the Qt Git wiki for how to use Git history grafting. At the time of writing, this wiki is located here: http://qt.gitorious.org/qt/pages/GitIntroductionWithQt If you have already performed the grafting and you don't see any history beyond this commit, try running "git log" with the "--follow" argument. Branched from the monolithic repo, Qt master branch, at commit 896db169ea224deb96c59ce8af800d019de63f12
2011-04-27 10:05:43 +00:00
# possible effect it may have due to these include-rules, and whether it
# might make more sense to share the rule or make it more specific.
#
# To verify that your change has the desired effect on the final configuration
# you can use the manual test in tests/manual/mkspecs.
#
Add optimize_full qmake config option This patch adds a new config option to qmake to enable full optimization where it makes sense. This currently is supported on all gcc like compilers by exchanging -O2 for -O3. In qtbase it is used to enable full optimizations on qtcore and qtgui and in a later patch can be used to replace similar existing logic in QtWebKit's WTF and JavaScriptCore modules. This fixes a performance regression from gcc 4.7 to 4.8 in the software renderer. An aliasing error in qregion.cpp which was exposed by more aggresive optimization has been solved as well. Change-Id: Ic2c6c41b79cb3846212b40e7bcc11ff492beb27f Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
2014-02-14 12:57:35 +00:00
QMAKE_CFLAGS_OPTIMIZE = -O2
QMAKE_CFLAGS_OPTIMIZE_FULL = -O3
Optimize debug builds when -Og is available Enables optimizing with -Og if GCC has the option available, this should produce faster debug binaries without compromising debugability. Is a privateConfig to limit it to the default Qt build. Includes two fixes for false positives of maybe_uninitialized triggered by -Og on gcc 4.9. Change-Id: I466d7a4070295714189024369312e6cbd36cfacf Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@qt.io>
2016-11-17 14:01:59 +00:00
QMAKE_CFLAGS_OPTIMIZE_DEBUG = -Og
Add configure flag to optimize Qt for size Adds default off configure flag to use compiler optimizations for size instead of the default speed/size trade-off. Change-Id: I36702064ef2cc743d2d03a386adf5cefd5371b6e Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@qt.io>
2017-04-07 13:49:10 +00:00
QMAKE_CFLAGS_OPTIMIZE_SIZE = -Os
Add optimize_full qmake config option This patch adds a new config option to qmake to enable full optimization where it makes sense. This currently is supported on all gcc like compilers by exchanging -O2 for -O3. In qtbase it is used to enable full optimizations on qtcore and qtgui and in a later patch can be used to replace similar existing logic in QtWebKit's WTF and JavaScriptCore modules. This fixes a performance regression from gcc 4.7 to 4.8 in the software renderer. An aliasing error in qregion.cpp which was exposed by more aggresive optimization has been solved as well. Change-Id: Ic2c6c41b79cb3846212b40e7bcc11ff492beb27f Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
2014-02-14 12:57:35 +00:00
qmake: Do not default to -pipe on Windows It is considered slightly faster than the default mode[1], but on Windows it causes trouble when aborting the build, it leaves behind zero-sized object files which cause link error. See discussion in the bug-make mailing list[2]. [1] https://stackoverflow.com/a/1512947/764870 [2] http://lists.gnu.org/archive/html/bug-make/2017-06/msg00066.html Change-Id: I7aa0b328a8c743fdfe9b0aece02b329066515076 Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@qt.io>
2017-06-16 12:10:16 +00:00
!equals(QMAKE_HOST.os, Windows): QMAKE_CFLAGS += -pipe
Fix '=' alignment and replace tabs in *.conf (whitespace only change) Replace all tabs with proper space characters and consistently align the '=' characters. The default alignment for the '=' of 25 characters has been left as is to get a minimal diff. Lines with the '=' further to the right and those belonging to 'proper code (TM)' have not been touched. The work was mostly done using the following python script (might come in handy again...): import sys, re indent_eq = 25 + 0*4 # 25 characters was the most widely used indentation for the '=' character p = re.compile(r'(\w+)[ \t]*([\-\+]?)(=$|= )[ \t]*(.*$)') for fn in sys.argv[1:]: with open(fn, 'r+') as f: lines = [] nl_count = 0 continuity_indent = None for l in f: m = p.match(l) nl = l if m: n_spaces = max(m.start(3), indent_eq - 1) - len(m.group(2)) - len(m.group(1)) if m.group(2) and m.start(2) >= indent_eq-1 and m.start(2) % 4 == 0: n_spaces -= 1 # left-shift '+=' by one if the '+' is aligned to a multiple of 4 n_spaces = max(1, n_spaces) # we want at least one space before '='/'+=' nl = m.group(1) + ' '*n_spaces + ''.join(m.group(2,3,4)) + '\n' continuity_indent = nl.find('= ') + 2 if l[-2] == '\\' else None # remember indent on '\\$' elif continuity_indent: nl = ' '*continuity_indent + l.lstrip() if l[-2] != '\\': # check when to stop the continuation continuity_indent = None elif l.startswith('#'): nl = l.expandtabs(2) if l != nl: nl_count += 1 lines.append(nl) if nl_count > 0: print fn, nl_count, len(lines) f.seek(0) f.writelines(lines) f.truncate() Change-Id: I1d2870d0a2fe2e30d398c140fe523e69dd20c81b Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
2013-03-19 01:57:31 +00:00
QMAKE_CFLAGS_DEPS += -M
QMAKE_CFLAGS_WARN_ON += -Wall -W
QMAKE_CFLAGS_WARN_OFF += -w
Add optimize_full qmake config option This patch adds a new config option to qmake to enable full optimization where it makes sense. This currently is supported on all gcc like compilers by exchanging -O2 for -O3. In qtbase it is used to enable full optimizations on qtcore and qtgui and in a later patch can be used to replace similar existing logic in QtWebKit's WTF and JavaScriptCore modules. This fixes a performance regression from gcc 4.7 to 4.8 in the software renderer. An aliasing error in qregion.cpp which was exposed by more aggresive optimization has been solved as well. Change-Id: Ic2c6c41b79cb3846212b40e7bcc11ff492beb27f Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
2014-02-14 12:57:35 +00:00
QMAKE_CFLAGS_RELEASE += $$QMAKE_CFLAGS_OPTIMIZE
Move QMAKE_CXXFLAGS_RELEASE_WITH_DEBUGINFO definition to gcc-base.conf The flags are the same across all GCC flavors so put the definition in the common gcc-base.conf instead of duplicating it in g++-base.conf and clang.conf Change-Id: I1ba2c3c314d3a02b559c384aecef74240f69f659 Reviewed-by: Allan Sandfeld Jensen <allan.jensen@theqtcompany.com> Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com>
2015-04-29 17:05:48 +00:00
QMAKE_CFLAGS_RELEASE_WITH_DEBUGINFO += $$QMAKE_CFLAGS_OPTIMIZE -g
Fix '=' alignment and replace tabs in *.conf (whitespace only change) Replace all tabs with proper space characters and consistently align the '=' characters. The default alignment for the '=' of 25 characters has been left as is to get a minimal diff. Lines with the '=' further to the right and those belonging to 'proper code (TM)' have not been touched. The work was mostly done using the following python script (might come in handy again...): import sys, re indent_eq = 25 + 0*4 # 25 characters was the most widely used indentation for the '=' character p = re.compile(r'(\w+)[ \t]*([\-\+]?)(=$|= )[ \t]*(.*$)') for fn in sys.argv[1:]: with open(fn, 'r+') as f: lines = [] nl_count = 0 continuity_indent = None for l in f: m = p.match(l) nl = l if m: n_spaces = max(m.start(3), indent_eq - 1) - len(m.group(2)) - len(m.group(1)) if m.group(2) and m.start(2) >= indent_eq-1 and m.start(2) % 4 == 0: n_spaces -= 1 # left-shift '+=' by one if the '+' is aligned to a multiple of 4 n_spaces = max(1, n_spaces) # we want at least one space before '='/'+=' nl = m.group(1) + ' '*n_spaces + ''.join(m.group(2,3,4)) + '\n' continuity_indent = nl.find('= ') + 2 if l[-2] == '\\' else None # remember indent on '\\$' elif continuity_indent: nl = ' '*continuity_indent + l.lstrip() if l[-2] != '\\': # check when to stop the continuation continuity_indent = None elif l.startswith('#'): nl = l.expandtabs(2) if l != nl: nl_count += 1 lines.append(nl) if nl_count > 0: print fn, nl_count, len(lines) f.seek(0) f.writelines(lines) f.truncate() Change-Id: I1d2870d0a2fe2e30d398c140fe523e69dd20c81b Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
2013-03-19 01:57:31 +00:00
QMAKE_CFLAGS_DEBUG += -g
MinGW: reuse gcc-base.conf and g++-base.conf it allows using optimize_full, ltcg and sanitizers Change-Id: I3ccf8257145c7d8800c2ebe98c5ac5adcec0dc9d Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@qt.io> Reviewed-by: Thiago Macieira <thiago.macieira@intel.com> Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
2016-11-25 14:07:48 +00:00
QMAKE_CFLAGS_SHLIB += $$QMAKE_CFLAGS_PIC
QMAKE_CFLAGS_STATIC_LIB += $$QMAKE_CFLAGS_PIC
QMAKE_CFLAGS_APP += $$QMAKE_CFLAGS_PIC
Add support for using -isystem in qmake This commit will make qmake use -isystem automatically for any compilers that declare support for it for any paths that are listed in QMAKE_DEFAULT_INCDIRS. Change-Id: I36fefc6d5bba61671f65669f0ea42704b3c3cf31 Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
2013-12-09 18:56:31 +00:00
QMAKE_CFLAGS_ISYSTEM = -isystem
Fix '=' alignment and replace tabs in *.conf (whitespace only change) Replace all tabs with proper space characters and consistently align the '=' characters. The default alignment for the '=' of 25 characters has been left as is to get a minimal diff. Lines with the '=' further to the right and those belonging to 'proper code (TM)' have not been touched. The work was mostly done using the following python script (might come in handy again...): import sys, re indent_eq = 25 + 0*4 # 25 characters was the most widely used indentation for the '=' character p = re.compile(r'(\w+)[ \t]*([\-\+]?)(=$|= )[ \t]*(.*$)') for fn in sys.argv[1:]: with open(fn, 'r+') as f: lines = [] nl_count = 0 continuity_indent = None for l in f: m = p.match(l) nl = l if m: n_spaces = max(m.start(3), indent_eq - 1) - len(m.group(2)) - len(m.group(1)) if m.group(2) and m.start(2) >= indent_eq-1 and m.start(2) % 4 == 0: n_spaces -= 1 # left-shift '+=' by one if the '+' is aligned to a multiple of 4 n_spaces = max(1, n_spaces) # we want at least one space before '='/'+=' nl = m.group(1) + ' '*n_spaces + ''.join(m.group(2,3,4)) + '\n' continuity_indent = nl.find('= ') + 2 if l[-2] == '\\' else None # remember indent on '\\$' elif continuity_indent: nl = ' '*continuity_indent + l.lstrip() if l[-2] != '\\': # check when to stop the continuation continuity_indent = None elif l.startswith('#'): nl = l.expandtabs(2) if l != nl: nl_count += 1 lines.append(nl) if nl_count > 0: print fn, nl_count, len(lines) f.seek(0) f.writelines(lines) f.truncate() Change-Id: I1d2870d0a2fe2e30d398c140fe523e69dd20c81b Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
2013-03-19 01:57:31 +00:00
QMAKE_CFLAGS_YACC += -Wno-unused -Wno-parentheses
QMAKE_CFLAGS_HIDESYMS += -fvisibility=hidden
turn off exceptions by default where they aren't required This significantly reduces the size of the generated code in places where we don't need exceptions. The -(no-)exceptions configure flag has been removed in the process, as there is now a fine grained way to control this on a per module level, and Qt is being compiled without exceptions in most places. Change-Id: I99a15c5d03339db1fbffd4987935d0d671cdbc32 Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2012-05-09 16:52:44 +00:00
QMAKE_CFLAGS_EXCEPTIONS_OFF += -fno-exceptions
Make the use of -fdata-sections and --gc-sections more generic in Qt Add qmake feature and configure option, which optimze the size of static exectuable. Use for static build. Enabled via configure --gc-binaries, or CONFIG += gc-binaries in 3rd party projects. Change-Id: I3c25b02caaef6a4afc6019afc9c67122dd11696d Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@qt.io>
2018-04-10 13:03:11 +00:00
QMAKE_CFLAGS_SPLIT_SECTIONS += -ffunction-sections -fdata-sections
Clean up ltcg.prf with variables, including a new static mode By using the special "ar" and "ranlib" tools, the symbol table is made visible, so we don't need fat LTO binaries. Since we need to store the new tool names, we may as well clean up ltcg.prf with variable names for the fat mode too. Change-Id: I7e53af0c74a3d069313f38500b72538af1d61128 Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com>
2014-11-15 03:27:46 +00:00
QMAKE_CFLAGS_LTCG = -flto -fno-fat-lto-objects
QMAKE_CFLAGS_LTCG_FATOBJECTS = -ffat-lto-objects
Fix leaking ISA extensions in LTCG builds Due to common subexpression elimination instruction set extensions may leak from the objects where they were enabled when doing link-time optimizations. To avoid that this patch disables LTCG/LTO on files built with extra instruction set extensions. Change-Id: Ie34ad900be7fb04a0dc4d3562187ee170c183333 Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com> Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2015-02-27 11:44:47 +00:00
QMAKE_CFLAGS_DISABLE_LTCG = -fno-lto
Initial import from the monolithic Qt. This is the beginning of revision history for this module. If you want to look at revision history older than this, please refer to the Qt Git wiki for how to use Git history grafting. At the time of writing, this wiki is located here: http://qt.gitorious.org/qt/pages/GitIntroductionWithQt If you have already performed the grafting and you don't see any history beyond this commit, try running "git log" with the "--follow" argument. Branched from the monolithic repo, Qt master branch, at commit 896db169ea224deb96c59ce8af800d019de63f12
2011-04-27 10:05:43 +00:00
QMAKE_CXXFLAGS += $$QMAKE_CFLAGS
QMAKE_CXXFLAGS_DEPS += $$QMAKE_CFLAGS_DEPS
QMAKE_CXXFLAGS_WARN_ON += $$QMAKE_CFLAGS_WARN_ON
QMAKE_CXXFLAGS_WARN_OFF += $$QMAKE_CFLAGS_WARN_OFF
QMAKE_CXXFLAGS_RELEASE += $$QMAKE_CFLAGS_RELEASE
Move QMAKE_CXXFLAGS_RELEASE_WITH_DEBUGINFO definition to gcc-base.conf The flags are the same across all GCC flavors so put the definition in the common gcc-base.conf instead of duplicating it in g++-base.conf and clang.conf Change-Id: I1ba2c3c314d3a02b559c384aecef74240f69f659 Reviewed-by: Allan Sandfeld Jensen <allan.jensen@theqtcompany.com> Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com>
2015-04-29 17:05:48 +00:00
QMAKE_CXXFLAGS_RELEASE_WITH_DEBUGINFO += $$QMAKE_CFLAGS_RELEASE_WITH_DEBUGINFO
Initial import from the monolithic Qt. This is the beginning of revision history for this module. If you want to look at revision history older than this, please refer to the Qt Git wiki for how to use Git history grafting. At the time of writing, this wiki is located here: http://qt.gitorious.org/qt/pages/GitIntroductionWithQt If you have already performed the grafting and you don't see any history beyond this commit, try running "git log" with the "--follow" argument. Branched from the monolithic repo, Qt master branch, at commit 896db169ea224deb96c59ce8af800d019de63f12
2011-04-27 10:05:43 +00:00
QMAKE_CXXFLAGS_DEBUG += $$QMAKE_CFLAGS_DEBUG
QMAKE_CXXFLAGS_SHLIB += $$QMAKE_CFLAGS_SHLIB
QMAKE_CXXFLAGS_STATIC_LIB += $$QMAKE_CFLAGS_STATIC_LIB
Force -fPIE on ELF if Qt is built with reduced relocations Put in qconfig.h whether qt is compiled with reduced relocations. When using -Bsymbolic-functions (enabled by default on Qt) but not -fPIE, the comparison of the function pointers fail because the addresses are different in Qt, and in the executable. Hence we now enable -fPIE by default on qmake, and force a compilation error when it is not enabled and built with reduced relocations. Done-with: Sune Vuorela <sune@vuorela.dk> Change-Id: Ib3fdba06fab6e8a93b75b4c6cf16cc973ab335db Reviewed-by: Bradley T. Hughes <bradley.hughes@nokia.com> Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2012-01-29 12:54:19 +00:00
QMAKE_CXXFLAGS_APP += $$QMAKE_CFLAGS_APP
Initial import from the monolithic Qt. This is the beginning of revision history for this module. If you want to look at revision history older than this, please refer to the Qt Git wiki for how to use Git history grafting. At the time of writing, this wiki is located here: http://qt.gitorious.org/qt/pages/GitIntroductionWithQt If you have already performed the grafting and you don't see any history beyond this commit, try running "git log" with the "--follow" argument. Branched from the monolithic repo, Qt master branch, at commit 896db169ea224deb96c59ce8af800d019de63f12
2011-04-27 10:05:43 +00:00
QMAKE_CXXFLAGS_YACC += $$QMAKE_CFLAGS_YACC
QMAKE_CXXFLAGS_HIDESYMS += $$QMAKE_CFLAGS_HIDESYMS -fvisibility-inlines-hidden
turn off exceptions by default where they aren't required This significantly reduces the size of the generated code in places where we don't need exceptions. The -(no-)exceptions configure flag has been removed in the process, as there is now a fine grained way to control this on a per module level, and Qt is being compiled without exceptions in most places. Change-Id: I99a15c5d03339db1fbffd4987935d0d671cdbc32 Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2012-05-09 16:52:44 +00:00
QMAKE_CXXFLAGS_EXCEPTIONS_OFF += $$QMAKE_CFLAGS_EXCEPTIONS_OFF
Make the use of -ffunction-sections more generic in Qt Move it from bootstrap.pro into qt_module.prf so it will apply to any other bootstrapped libraries, like libQmlDevTools. Variable called "SPLIT_SECTIONS" because -fdata-sections could be added in the future, if it proves to be a benefit. Change-Id: I3fbb004f111620a84e58e9112e9bce3afd95631e Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
2014-05-12 00:41:40 +00:00
QMAKE_CXXFLAGS_SPLIT_SECTIONS += $$QMAKE_CFLAGS_SPLIT_SECTIONS
Add link-time optimization support for Clang, GCC and ICC GCC currently requires fat object files for static libraries, since the linker would otherwise not load the .o file from the archive at all and the linking would fail with a lot of undefined references. Clang on Linux also needs this, but it has no equivalent flag, so enabling LTCG for Clang on static libraries will result in linker error. This commit does not add support for enabling it in configure. It can be enabled on a per-project basis by doing CONFIG += ltcg or by passing -config ltcg to qmake's command-line. Change-Id: I52cf99f1ed9f1701e23a3b457ba3502fd28126ce Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
2014-06-26 21:56:06 +00:00
QMAKE_CXXFLAGS_LTCG = $$QMAKE_CFLAGS_LTCG
Clean up ltcg.prf with variables, including a new static mode By using the special "ar" and "ranlib" tools, the symbol table is made visible, so we don't need fat LTO binaries. Since we need to store the new tool names, we may as well clean up ltcg.prf with variable names for the fat mode too. Change-Id: I7e53af0c74a3d069313f38500b72538af1d61128 Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com>
2014-11-15 03:27:46 +00:00
QMAKE_CXXFLAGS_LTCG_FATOBJECTS = $$QMAKE_CFLAGS_LTCG_FATOBJECTS
Fix leaking ISA extensions in LTCG builds Due to common subexpression elimination instruction set extensions may leak from the objects where they were enabled when doing link-time optimizations. To avoid that this patch disables LTCG/LTO on files built with extra instruction set extensions. Change-Id: Ie34ad900be7fb04a0dc4d3562187ee170c183333 Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com> Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2015-02-27 11:44:47 +00:00
QMAKE_CXXFLAGS_DISABLE_LTCG = $$QMAKE_CFLAGS_DISABLE_LTCG
Initial import from the monolithic Qt. This is the beginning of revision history for this module. If you want to look at revision history older than this, please refer to the Qt Git wiki for how to use Git history grafting. At the time of writing, this wiki is located here: http://qt.gitorious.org/qt/pages/GitIntroductionWithQt If you have already performed the grafting and you don't see any history beyond this commit, try running "git log" with the "--follow" argument. Branched from the monolithic repo, Qt master branch, at commit 896db169ea224deb96c59ce8af800d019de63f12
2011-04-27 10:05:43 +00:00
Fix '=' alignment and replace tabs in *.conf (whitespace only change) Replace all tabs with proper space characters and consistently align the '=' characters. The default alignment for the '=' of 25 characters has been left as is to get a minimal diff. Lines with the '=' further to the right and those belonging to 'proper code (TM)' have not been touched. The work was mostly done using the following python script (might come in handy again...): import sys, re indent_eq = 25 + 0*4 # 25 characters was the most widely used indentation for the '=' character p = re.compile(r'(\w+)[ \t]*([\-\+]?)(=$|= )[ \t]*(.*$)') for fn in sys.argv[1:]: with open(fn, 'r+') as f: lines = [] nl_count = 0 continuity_indent = None for l in f: m = p.match(l) nl = l if m: n_spaces = max(m.start(3), indent_eq - 1) - len(m.group(2)) - len(m.group(1)) if m.group(2) and m.start(2) >= indent_eq-1 and m.start(2) % 4 == 0: n_spaces -= 1 # left-shift '+=' by one if the '+' is aligned to a multiple of 4 n_spaces = max(1, n_spaces) # we want at least one space before '='/'+=' nl = m.group(1) + ' '*n_spaces + ''.join(m.group(2,3,4)) + '\n' continuity_indent = nl.find('= ') + 2 if l[-2] == '\\' else None # remember indent on '\\$' elif continuity_indent: nl = ' '*continuity_indent + l.lstrip() if l[-2] != '\\': # check when to stop the continuation continuity_indent = None elif l.startswith('#'): nl = l.expandtabs(2) if l != nl: nl_count += 1 lines.append(nl) if nl_count > 0: print fn, nl_count, len(lines) f.seek(0) f.writelines(lines) f.truncate() Change-Id: I1d2870d0a2fe2e30d398c140fe523e69dd20c81b Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
2013-03-19 01:57:31 +00:00
QMAKE_LFLAGS +=
QMAKE_LFLAGS_DEBUG +=
QMAKE_LFLAGS_APP +=
QMAKE_LFLAGS_RELEASE +=
Move QMAKE_CXXFLAGS_RELEASE_WITH_DEBUGINFO definition to gcc-base.conf The flags are the same across all GCC flavors so put the definition in the common gcc-base.conf instead of duplicating it in g++-base.conf and clang.conf Change-Id: I1ba2c3c314d3a02b559c384aecef74240f69f659 Reviewed-by: Allan Sandfeld Jensen <allan.jensen@theqtcompany.com> Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com>
2015-04-29 17:05:48 +00:00
QMAKE_LFLAGS_RELEASE_WITH_DEBUGINFO +=
turn off exceptions by default where they aren't required This significantly reduces the size of the generated code in places where we don't need exceptions. The -(no-)exceptions configure flag has been removed in the process, as there is now a fine grained way to control this on a per module level, and Qt is being compiled without exceptions in most places. Change-Id: I99a15c5d03339db1fbffd4987935d0d671cdbc32 Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2012-05-09 16:52:44 +00:00
QMAKE_LFLAGS_EXCEPTIONS_OFF +=
Add link-time optimization support for Clang, GCC and ICC GCC currently requires fat object files for static libraries, since the linker would otherwise not load the .o file from the archive at all and the linking would fail with a lot of undefined references. Clang on Linux also needs this, but it has no equivalent flag, so enabling LTCG for Clang on static libraries will result in linker error. This commit does not add support for enabling it in configure. It can be enabled on a per-project basis by doing CONFIG += ltcg or by passing -config ltcg to qmake's command-line. Change-Id: I52cf99f1ed9f1701e23a3b457ba3502fd28126ce Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
2014-06-26 21:56:06 +00:00
QMAKE_LFLAGS_LTCG = $$QMAKE_CFLAGS_LTCG -fuse-linker-plugin
Move the SSE2/AVX/Neon/etc. flags into the compiler mkspecs This allows us to have different flags for the compilers for supporting the same feature. For example, the official flag in GCC to support AVX2 is -mavx2, but ICC does not support it (yet), requiring -march=core-avx2 or -xCORE-AVX2. That flag, instead, enables support for all the features that the "Core-AVX2" processor (codename Haswell) will support. And clearly, the MSVC flags are different. Change-Id: I33b6d8617520925e807747180a8dbaafd79b7a9a Reviewed-by: Sean Harmer <sean.harmer@kdab.com> Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@nokia.com>
2012-05-31 12:58:53 +00:00
Detect C standard and try using the most recent one (take 2) Fixes the default C version used with gcc < 5 Change-Id: I948dece961caed8e6b181e1c6e6b9dc43c46583e Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@qt.io>
2018-02-14 12:40:57 +00:00
QMAKE_CFLAGS_C99 = -std=c99
QMAKE_CFLAGS_C11 = -std=c11
Fix '=' alignment and replace tabs in *.conf (whitespace only change) Replace all tabs with proper space characters and consistently align the '=' characters. The default alignment for the '=' of 25 characters has been left as is to get a minimal diff. Lines with the '=' further to the right and those belonging to 'proper code (TM)' have not been touched. The work was mostly done using the following python script (might come in handy again...): import sys, re indent_eq = 25 + 0*4 # 25 characters was the most widely used indentation for the '=' character p = re.compile(r'(\w+)[ \t]*([\-\+]?)(=$|= )[ \t]*(.*$)') for fn in sys.argv[1:]: with open(fn, 'r+') as f: lines = [] nl_count = 0 continuity_indent = None for l in f: m = p.match(l) nl = l if m: n_spaces = max(m.start(3), indent_eq - 1) - len(m.group(2)) - len(m.group(1)) if m.group(2) and m.start(2) >= indent_eq-1 and m.start(2) % 4 == 0: n_spaces -= 1 # left-shift '+=' by one if the '+' is aligned to a multiple of 4 n_spaces = max(1, n_spaces) # we want at least one space before '='/'+=' nl = m.group(1) + ' '*n_spaces + ''.join(m.group(2,3,4)) + '\n' continuity_indent = nl.find('= ') + 2 if l[-2] == '\\' else None # remember indent on '\\$' elif continuity_indent: nl = ' '*continuity_indent + l.lstrip() if l[-2] != '\\': # check when to stop the continuation continuity_indent = None elif l.startswith('#'): nl = l.expandtabs(2) if l != nl: nl_count += 1 lines.append(nl) if nl_count > 0: print fn, nl_count, len(lines) f.seek(0) f.writelines(lines) f.truncate() Change-Id: I1d2870d0a2fe2e30d398c140fe523e69dd20c81b Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
2013-03-19 01:57:31 +00:00
QMAKE_CFLAGS_SSE2 += -msse2
QMAKE_CFLAGS_SSE3 += -msse3
QMAKE_CFLAGS_SSSE3 += -mssse3
QMAKE_CFLAGS_SSE4_1 += -msse4.1
QMAKE_CFLAGS_SSE4_2 += -msse4.2
Use native support for fp16 where available Use F16C or ARM FP16 if available at compile time. Configure check added because older clang compilers have F16C defines and flags but not all the intrinsics. Change-Id: I71f358b8fd003e70ab8fcf35097414591e485112 Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2017-02-10 13:51:12 +00:00
QMAKE_CFLAGS_F16C += -mf16c
Add proper detection of x86 RDRAND instruction The instruction is "RDRAND", but the feature name, according to GCC, is RDRND, so I had to change some macros in qsimd_p.h. Change-Id: Icd0e0d4b27cb4e5eb892fffd14b5166779137e63 Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@qt.io> Reviewed-by: Lars Knoll <lars.knoll@qt.io>
2017-04-13 22:44:45 +00:00
QMAKE_CFLAGS_RDRND += -mrdrnd
Fix '=' alignment and replace tabs in *.conf (whitespace only change) Replace all tabs with proper space characters and consistently align the '=' characters. The default alignment for the '=' of 25 characters has been left as is to get a minimal diff. Lines with the '=' further to the right and those belonging to 'proper code (TM)' have not been touched. The work was mostly done using the following python script (might come in handy again...): import sys, re indent_eq = 25 + 0*4 # 25 characters was the most widely used indentation for the '=' character p = re.compile(r'(\w+)[ \t]*([\-\+]?)(=$|= )[ \t]*(.*$)') for fn in sys.argv[1:]: with open(fn, 'r+') as f: lines = [] nl_count = 0 continuity_indent = None for l in f: m = p.match(l) nl = l if m: n_spaces = max(m.start(3), indent_eq - 1) - len(m.group(2)) - len(m.group(1)) if m.group(2) and m.start(2) >= indent_eq-1 and m.start(2) % 4 == 0: n_spaces -= 1 # left-shift '+=' by one if the '+' is aligned to a multiple of 4 n_spaces = max(1, n_spaces) # we want at least one space before '='/'+=' nl = m.group(1) + ' '*n_spaces + ''.join(m.group(2,3,4)) + '\n' continuity_indent = nl.find('= ') + 2 if l[-2] == '\\' else None # remember indent on '\\$' elif continuity_indent: nl = ' '*continuity_indent + l.lstrip() if l[-2] != '\\': # check when to stop the continuation continuity_indent = None elif l.startswith('#'): nl = l.expandtabs(2) if l != nl: nl_count += 1 lines.append(nl) if nl_count > 0: print fn, nl_count, len(lines) f.seek(0) f.writelines(lines) f.truncate() Change-Id: I1d2870d0a2fe2e30d398c140fe523e69dd20c81b Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
2013-03-19 01:57:31 +00:00
QMAKE_CFLAGS_AVX += -mavx
QMAKE_CFLAGS_AVX2 += -mavx2
configure: Add support for detecting AVX512 instructions Tested on Linux with Clang 3.7, GCC 4.9, 5.1 and 6.0, ICC 16 beta; on OS X with Clang-XCode 6.4, ICC 16 beta; on Windows with MSVC 2013 and ICC 15. MinGW is not tested. GCC 4.9: AVX512F AVX512ER AVX512CD AVX512PF GCC 5 & 6: AVX512F AVX512ER AVX512CD AVX512PF AVX512DQ AVX512BW AVX512VL AVX512IFMA AVX512VBMI Clang 3.7: AVX512F AVX512ER AVX512CD Clang-XCode: <none> ICC 15 & 16: AVX512F AVX512ER AVX512CD AVX512PF AVX512DQ AVX512BW AVX512VL MSVC 2013: <none> Change-Id: Ib306f8f647014b399b87ffff13f1da1b161c31d7 Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com> Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2015-07-17 21:46:05 +00:00
QMAKE_CFLAGS_AVX512F += -mavx512f
QMAKE_CFLAGS_AVX512ER += -mavx512er
QMAKE_CFLAGS_AVX512CD += -mavx512cd
QMAKE_CFLAGS_AVX512PF += -mavx512pf
QMAKE_CFLAGS_AVX512DQ += -mavx512dq
QMAKE_CFLAGS_AVX512BW += -mavx512bw
QMAKE_CFLAGS_AVX512VL += -mavx512vl
QMAKE_CFLAGS_AVX512IFMA += -mavx512ifma
QMAKE_CFLAGS_AVX512VBMI += -mavx512vbmi
x86: Add detection of the AES and SHA New Instructions The AES instructions were first introduced with the Westmere shrink (22nm) of the Nehalem architecture. The SHA instructions are still pending on Intel architecture, but is available on AMD family 17h (gcc argument -march=znver1). Both features operate on SSE registers, so that's why the MSVC command- line argument is the SSE2 one and the configure-time tests depend on features.sse2. The qmake feature names end in "ni" because "aes" and "sha" are too simple and could clash with other uses. The QT_COMPILER_SUPPORTS_ macro doesn't have the "NI" suffix because it has to match the GCC/Clang predefined macro. Change-Id: I445bb15619f6401494e8fffd149dbd1f862ff51c Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>
2017-01-27 21:09:55 +00:00
QMAKE_CFLAGS_AESNI += -maes
QMAKE_CFLAGS_SHANI += -msha
Fix '=' alignment and replace tabs in *.conf (whitespace only change) Replace all tabs with proper space characters and consistently align the '=' characters. The default alignment for the '=' of 25 characters has been left as is to get a minimal diff. Lines with the '=' further to the right and those belonging to 'proper code (TM)' have not been touched. The work was mostly done using the following python script (might come in handy again...): import sys, re indent_eq = 25 + 0*4 # 25 characters was the most widely used indentation for the '=' character p = re.compile(r'(\w+)[ \t]*([\-\+]?)(=$|= )[ \t]*(.*$)') for fn in sys.argv[1:]: with open(fn, 'r+') as f: lines = [] nl_count = 0 continuity_indent = None for l in f: m = p.match(l) nl = l if m: n_spaces = max(m.start(3), indent_eq - 1) - len(m.group(2)) - len(m.group(1)) if m.group(2) and m.start(2) >= indent_eq-1 and m.start(2) % 4 == 0: n_spaces -= 1 # left-shift '+=' by one if the '+' is aligned to a multiple of 4 n_spaces = max(1, n_spaces) # we want at least one space before '='/'+=' nl = m.group(1) + ' '*n_spaces + ''.join(m.group(2,3,4)) + '\n' continuity_indent = nl.find('= ') + 2 if l[-2] == '\\' else None # remember indent on '\\$' elif continuity_indent: nl = ' '*continuity_indent + l.lstrip() if l[-2] != '\\': # check when to stop the continuation continuity_indent = None elif l.startswith('#'): nl = l.expandtabs(2) if l != nl: nl_count += 1 lines.append(nl) if nl_count > 0: print fn, nl_count, len(lines) f.seek(0) f.writelines(lines) f.truncate() Change-Id: I1d2870d0a2fe2e30d398c140fe523e69dd20c81b Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
2013-03-19 01:57:31 +00:00
QMAKE_CFLAGS_NEON += -mfpu=neon
Fix MIPS DSP configuration The patch fixes a number of bugs in code, and removes dead logic clarifying that MIPS DSP, like ARM NEON, has no runtime detecton. Change-Id: If2f4eea68da5b2eaa80b8e9c8258206d8c1b7173 Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@qt.io> Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2017-01-19 10:14:47 +00:00
QMAKE_CFLAGS_MIPS_DSP += -mdsp
QMAKE_CFLAGS_MIPS_DSPR2 += -mdspr2
Add support for gcc/clang's sanitize features GCC and Clang support compiler intrinsic error detections tools: address, memory, thread, undefined Let users conveniently enable it in qmake, for instance with CONFIG += sanitizer sanitize_address Also add a -sanitize [...] option to configure to use it by default for both the Qt libraries, and user applications. [ChangeLog][configure] Added support for GCC/Clang -fsanitize= options Change-Id: Ie5418abcdf41842566df510d7707e41739e66f87 Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
2014-09-30 07:50:22 +00:00
SIMD: Add a haswell sub-architecture selection to our support As the comment says, Haswell is a nice divider and is a good optimization target. I'm using -march=core-avx2 instead of -march=haswell because the latter form was only added to GCC 4.9 but we still support 4.7 and that has support for AVX2. This commit changes the AVX2-optimized code in QtGui to Haswell- optimized instead. That means, for example, that qdrawhelper_avx2.cpp can now use the FMA instructions. Change-Id: If025d476890745368955fffd153129c1716ba006 Reviewed-by: Lars Knoll <lars.knoll@qt.io> Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>
2018-05-23 03:54:19 +00:00
# -march=haswell is supported as of GCC 4.9 and Clang 3.6
QMAKE_CFLAGS_ARCH_HASWELL = -march=core-avx2
Clean up ltcg.prf with variables, including a new static mode By using the special "ar" and "ranlib" tools, the symbol table is made visible, so we don't need fat LTO binaries. Since we need to store the new tool names, we may as well clean up ltcg.prf with variable names for the fat mode too. Change-Id: I7e53af0c74a3d069313f38500b72538af1d61128 Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com>
2014-11-15 03:27:46 +00:00
# Wrapper tools that understand .o/.a files with GIMPLE instead of machine code
QMAKE_AR_LTCG = gcc-ar cqs
QMAKE_NM_LTCG = gcc-nm -P
QMAKE_RANLIB_LTCG = true # No need to run since gcc-ar has "s"
Add support for gcc/clang's sanitize features GCC and Clang support compiler intrinsic error detections tools: address, memory, thread, undefined Let users conveniently enable it in qmake, for instance with CONFIG += sanitizer sanitize_address Also add a -sanitize [...] option to configure to use it by default for both the Qt libraries, and user applications. [ChangeLog][configure] Added support for GCC/Clang -fsanitize= options Change-Id: Ie5418abcdf41842566df510d7707e41739e66f87 Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
2014-09-30 07:50:22 +00:00
include(sanitize.conf)
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