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-rw-r--r--mkspecs/common/clang.conf6
-rw-r--r--mkspecs/common/gcc-base.conf3
-rw-r--r--mkspecs/features/ltcg.prf54
-rw-r--r--mkspecs/features/win32/ltcg.prf5
-rw-r--r--mkspecs/linux-icc/qmake.conf3
-rw-r--r--mkspecs/macx-icc/qmake.conf3
-rw-r--r--mkspecs/win32-icc/qmake.conf3
7 files changed, 71 insertions, 6 deletions
diff --git a/mkspecs/common/clang.conf b/mkspecs/common/clang.conf
index d58b44b295..6235296ef3 100644
--- a/mkspecs/common/clang.conf
+++ b/mkspecs/common/clang.conf
@@ -16,8 +16,12 @@ QMAKE_PCH_OUTPUT_EXT = .pch
QMAKE_CFLAGS_ISYSTEM = -isystem
QMAKE_CFLAGS_PRECOMPILE = -x c-header -c ${QMAKE_PCH_INPUT} -o ${QMAKE_PCH_OUTPUT}
QMAKE_CFLAGS_USE_PRECOMPILE = -Xclang -include-pch -Xclang ${QMAKE_PCH_OUTPUT}
+QMAKE_CFLAGS_LTCG = -flto
+
QMAKE_CXXFLAGS_PRECOMPILE = -x c++-header -c ${QMAKE_PCH_INPUT} -o ${QMAKE_PCH_OUTPUT}
QMAKE_CXXFLAGS_USE_PRECOMPILE = $$QMAKE_CFLAGS_USE_PRECOMPILE
+QMAKE_CXXFLAGS_LTCG = $$QMAKE_CFLAGS_LTCG
+QMAKE_CXXFLAGS_CXX11 = -std=c++11
-QMAKE_CXXFLAGS_CXX11 = -std=c++11
QMAKE_LFLAGS_CXX11 =
+QMAKE_LFLAGS_LTCG = $$QMAKE_CFLAGS_LTCG
diff --git a/mkspecs/common/gcc-base.conf b/mkspecs/common/gcc-base.conf
index fcff502af6..06d87d7b36 100644
--- a/mkspecs/common/gcc-base.conf
+++ b/mkspecs/common/gcc-base.conf
@@ -48,6 +48,7 @@ QMAKE_CFLAGS_YACC += -Wno-unused -Wno-parentheses
QMAKE_CFLAGS_HIDESYMS += -fvisibility=hidden
QMAKE_CFLAGS_EXCEPTIONS_OFF += -fno-exceptions
QMAKE_CFLAGS_SPLIT_SECTIONS += -ffunction-sections
+QMAKE_CFLAGS_LTCG = -flto
QMAKE_CXXFLAGS += $$QMAKE_CFLAGS
QMAKE_CXXFLAGS_DEPS += $$QMAKE_CFLAGS_DEPS
@@ -62,12 +63,14 @@ QMAKE_CXXFLAGS_YACC += $$QMAKE_CFLAGS_YACC
QMAKE_CXXFLAGS_HIDESYMS += $$QMAKE_CFLAGS_HIDESYMS -fvisibility-inlines-hidden
QMAKE_CXXFLAGS_EXCEPTIONS_OFF += $$QMAKE_CFLAGS_EXCEPTIONS_OFF
QMAKE_CXXFLAGS_SPLIT_SECTIONS += $$QMAKE_CFLAGS_SPLIT_SECTIONS
+QMAKE_CXXFLAGS_LTCG = $$QMAKE_CFLAGS_LTCG
QMAKE_LFLAGS +=
QMAKE_LFLAGS_DEBUG +=
QMAKE_LFLAGS_APP +=
QMAKE_LFLAGS_RELEASE +=
QMAKE_LFLAGS_EXCEPTIONS_OFF +=
+QMAKE_LFLAGS_LTCG = $$QMAKE_CFLAGS_LTCG -fuse-linker-plugin
QMAKE_CFLAGS_SSE2 += -msse2
QMAKE_CFLAGS_SSE3 += -msse3
diff --git a/mkspecs/features/ltcg.prf b/mkspecs/features/ltcg.prf
new file mode 100644
index 0000000000..b418135014
--- /dev/null
+++ b/mkspecs/features/ltcg.prf
@@ -0,0 +1,54 @@
+CONFIG(release, debug|release) {
+ # We need fat object files when creating static libraries on some platforms
+ # so the linker will know to load a particular object from the library
+ # in the first place. With GCC, we have -ffat-lto-objects. MSVC
+ # seems to work just fine. For other compilers, we disable LTCG
+ # for static libraries.
+ msvc {
+ # Nothing to do
+ } else: gcc {
+ !clang:!intel_icc {
+ static|fat-lto {
+ QMAKE_CFLAGS_LTCG += -ffat-lto-objects
+ QMAKE_CXXFLAGS_LTCG += -ffat-lto-objects
+ } else {
+ QMAKE_CFLAGS_LTCG += -fno-fat-lto-objects
+ QMAKE_CXXFLAGS_LTCG += -fno-fat-lto-objects
+ }
+ linux {
+ # Get the number of online processors, like _SC_NPROCESSORS_ONLN
+ isEmpty(QMAKE_NPROCESSORS_ONLN) {
+ QMAKE_NPROCESSORS_ONLN = $$system("grep -c '^processor' /proc/cpuinfo 2>/dev/null || echo 1")
+ cache(QMAKE_NPROCESSORS_ONLN, set stash)
+ }
+
+ # Override LTO number of jobs
+ QMAKE_LFLAGS_LTCG -= -flto
+ QMAKE_LFLAGS_LTCG += -flto=$$QMAKE_NPROCESSORS_ONLN
+ }
+ } else: static {
+ QMAKE_CFLAGS_LTCG =
+ QMAKE_CXXFLAGS_LTCG =
+ QMAKE_LFLAGS_LTCG =
+ }
+
+ # When doing link-time code generation, we need to pass the compiler
+ # flags during linking stage too. This file is processed after
+ # default_post.prf, so the QMAKE_CXXFLAGS already contains
+ # QMAKE_CXXFLAGS_DEBUG or _RELEASE.
+ use_c_linker {
+ # use_c_linker.prf is in effect, use the C flags
+ QMAKE_LFLAGS_LTCG += $$QMAKE_CFLAGS $$QMAKE_CFLAGS_LTCG
+ QMAKE_LFLAGS_APP += $$QMAKE_CFLAGS_APP
+ QMAKE_LFLAGS_SHLIB += $$QMAKE_CFLAGS_SHLIB
+ } else {
+ QMAKE_LFLAGS_LTCG = $$QMAKE_CXXFLAGS $$QMAKE_LFLAGS_LTCG
+ QMAKE_LFLAGS_APP += $$QMAKE_CXXFLAGS_APP
+ QMAKE_LFLAGS_SHLIB += $$QMAKE_CXXFLAGS_SHLIB
+ }
+ }
+
+ QMAKE_CFLAGS *= $$QMAKE_CFLAGS_LTCG
+ QMAKE_CXXFLAGS *= $$QMAKE_CXXFLAGS_LTCG
+ QMAKE_LFLAGS *= $$QMAKE_LFLAGS_LTCG
+}
diff --git a/mkspecs/features/win32/ltcg.prf b/mkspecs/features/win32/ltcg.prf
deleted file mode 100644
index f6f1299f47..0000000000
--- a/mkspecs/features/win32/ltcg.prf
+++ /dev/null
@@ -1,5 +0,0 @@
-CONFIG(release, debug|release) {
- QMAKE_CFLAGS *= $$QMAKE_CFLAGS_LTCG
- QMAKE_CXXFLAGS *= $$QMAKE_CXXFLAGS_LTCG
- QMAKE_LFLAGS *= $$QMAKE_LFLAGS_LTCG
-}
diff --git a/mkspecs/linux-icc/qmake.conf b/mkspecs/linux-icc/qmake.conf
index c0caca09fa..8119c8aa09 100644
--- a/mkspecs/linux-icc/qmake.conf
+++ b/mkspecs/linux-icc/qmake.conf
@@ -24,6 +24,7 @@ QMAKE_CFLAGS_YACC =
QMAKE_CFLAGS_ISYSTEM = -isystem
QMAKE_CFLAGS_THREAD = -D_REENTRANT
QMAKE_CFLAGS_SPLIT_SECTIONS = -ffunction-sections
+QMAKE_CFLAGS_LTCG = -ipo
QMAKE_CFLAGS_SSE2 += -xSSE2
QMAKE_CFLAGS_SSE3 += -xSSE3
@@ -49,6 +50,7 @@ QMAKE_CXXFLAGS_SPLIT_SECTIONS = $$QMAKE_CFLAGS_SPLIT_SECTIONS
# Disabling exceptions disabled - workaround for QTBUG-36577
#QMAKE_CXXFLAGS_EXCEPTIONS_OFF = -fno-exceptions
QMAKE_CXXFLAGS_CXX11 = -std=c++0x
+QMAKE_CXXFLAGS_LTCG = $$QMAKE_CFLAGS_LTCG
QMAKE_INCDIR =
QMAKE_LIBDIR =
@@ -70,6 +72,7 @@ QMAKE_LFLAGS_NOUNDEF = -Wl,-z,defs
QMAKE_LFLAGS_RPATH = -Wl,-rpath,
QMAKE_LFLAGS_RPATHLINK = -Wl,-rpath-link,
QMAKE_LFLAGS_CXX11 =
+QMAKE_LFLAGS_LTCG = $$QMAKE_CFLAGS_LTCG
QMAKE_LIBS =
QMAKE_LIBS_DYNLOAD = -ldl
diff --git a/mkspecs/macx-icc/qmake.conf b/mkspecs/macx-icc/qmake.conf
index 370a738c6a..88b04976f2 100644
--- a/mkspecs/macx-icc/qmake.conf
+++ b/mkspecs/macx-icc/qmake.conf
@@ -23,6 +23,7 @@ QMAKE_CFLAGS_STATIC_LIB = $$QMAKE_CFLAGS_SHLIB
QMAKE_CFLAGS_YACC = -Wno-unused -Wno-parentheses
QMAKE_CFLAGS_THREAD =
QMAKE_CFLAGS_SPLIT_SECTIONS = -ffunction-sections
+QMAKE_CFLAGS_LTCG = -ipo
QMAKE_CFLAGS_SSE2 += -msse2
QMAKE_CFLAGS_SSE3 += -msse3
@@ -54,6 +55,7 @@ QMAKE_CXXFLAGS_THREAD = $$QMAKE_CFLAGS_THREAD
# Disabled, due to invalid C++11 code on Apple headers
#QMAKE_CXXFLAGS_CXX11 = -std=c++11
QMAKE_CXXFLAGS_SPLIT_SECTIONS = $$QMAKE_CFLAGS_SPLIT_SECTIONS
+QMAKE_CXXFLAGS_LTCG = $$QMAKE_CFLAGS_LTCG
QMAKE_LINK = icpc
QMAKE_LINK_SHLIB = icpc
@@ -66,6 +68,7 @@ QMAKE_LFLAGS_PLUGIN = $$QMAKE_LFLAGS_SHLIB
QMAKE_LFLAGS_SONAME = -install_name$${LITERAL_WHITESPACE}
QMAKE_LFLAGS_THREAD =
QMAKE_LFLAGS_RPATH =
+QMAKE_LFLAGS_LTCG = $$QMAKE_CFLAGS_LTCG
QMAKE_LFLAGS_VERSION = -current_version$${LITERAL_WHITESPACE}
QMAKE_LFLAGS_COMPAT_VERSION = -compatibility_version$${LITERAL_WHITESPACE}
diff --git a/mkspecs/win32-icc/qmake.conf b/mkspecs/win32-icc/qmake.conf
index a60d846e2f..d326cdeee3 100644
--- a/mkspecs/win32-icc/qmake.conf
+++ b/mkspecs/win32-icc/qmake.conf
@@ -23,6 +23,7 @@ QMAKE_CFLAGS_WARN_OFF = -W0 /Qwd673
QMAKE_CFLAGS_RELEASE = -O2 -MD
QMAKE_CFLAGS_DEBUG = -Zi -MDd -Od
QMAKE_CFLAGS_YACC =
+QMAKE_CFLAGS_LTCG = -Qipo
QMAKE_CFLAGS_SSE2 = -QxSSE2
QMAKE_CFLAGS_SSE3 = -QxSSE3
QMAKE_CFLAGS_SSSE3 = -QxSSSE3
@@ -45,6 +46,7 @@ QMAKE_CXXFLAGS_RTTI_OFF =
QMAKE_CXXFLAGS_EXCEPTIONS_ON = -EHsc
QMAKE_CXXFLAGS_EXCEPTIONS_OFF =
QMAKE_CXXFLAGS_CXX11 = -Qstd=c++11
+QMAKE_CXXFLAGS_LTCG = $$QMAKE_CFLAGS_LTCG
QMAKE_INCDIR =
@@ -62,6 +64,7 @@ QMAKE_LFLAGS_DEBUG = /DEBUG
QMAKE_LFLAGS_CONSOLE = /SUBSYSTEM:console
QMAKE_LFLAGS_WINDOWS = /SUBSYSTEM:windows
QMAKE_LFLAGS_DLL = /DLL
+QMAKE_LFLAGS_LTCG = $$QMAKE_CFLAGS_LTCG
QMAKE_EXTENSION_STATICLIB = lib
QMAKE_LIBS =
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-09 14:27:19 +0000