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73 lines
2.3 KiB
Diff
73 lines
2.3 KiB
Diff
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http://lists.freedesktop.org/archives/mesa-dev/2013-October/046311.html
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* As discussed on the mailing list,
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forced no-rtti breaks C++ public
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API's such as the Haiku C++ libGL.so
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* -fno-rtti *can* be still set however
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instead of blindly forcing -fno-rtti,
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we can rely on the llvm-config
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--cppflags output.
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If the system llvm is built without
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rtti (default), the no-rtti flag will be
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present in llvm-config --cppflags
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(which we pick up on)
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If llvm is built with rtti
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(REQUIRES_RTTI=1), then -fno-rtti is
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removed from llvm-config --cppflags.
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* We could selectively add / remove rtti
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from various components, however mixing
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rtti and non-rtti code is tricky and
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could introduce bugs.
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* This needs impact tested.
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---
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configure.ac | 1 -
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scons/llvm.py | 3 ---
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src/gallium/auxiliary/Makefile.am | 6 ------
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3 files changed, 10 deletions(-)
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diff --git a/configure.ac b/configure.ac
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index 0d082d2..3335575 100644
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--- a/configure.ac
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+++ b/configure.ac
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@@ -1943,7 +1943,6 @@ AM_CONDITIONAL(HAVE_LOADER_GALLIUM, test x$enable_gallium_loader = xyes)
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AM_CONDITIONAL(HAVE_DRM_LOADER_GALLIUM, test x$enable_gallium_drm_loader = xyes)
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AM_CONDITIONAL(HAVE_GALLIUM_COMPUTE, test x$enable_opencl = xyes)
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AM_CONDITIONAL(HAVE_MESA_LLVM, test x$MESA_LLVM = x1)
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-AM_CONDITIONAL(LLVM_NEEDS_FNORTTI, test $LLVM_VERSION_INT -ge 302)
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AC_SUBST([ELF_LIB])
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diff --git a/scons/llvm.py b/scons/llvm.py
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index 7cd609c..c1c3736 100644
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--- a/scons/llvm.py
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+++ b/scons/llvm.py
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@@ -195,9 +195,6 @@ def generate(env):
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if llvm_version >= distutils.version.LooseVersion('3.1'):
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components.append('mcjit')
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- if llvm_version >= distutils.version.LooseVersion('3.2'):
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- env.Append(CXXFLAGS = ('-fno-rtti',))
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-
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env.ParseConfig('llvm-config --libs ' + ' '.join(components))
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env.ParseConfig('llvm-config --ldflags')
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except OSError:
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diff --git a/src/gallium/auxiliary/Makefile.am b/src/gallium/auxiliary/Makefile.am
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index 670e124..2d2d8d4 100644
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--- a/src/gallium/auxiliary/Makefile.am
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+++ b/src/gallium/auxiliary/Makefile.am
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@@ -25,12 +25,6 @@ AM_CXXFLAGS += \
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$(GALLIUM_CFLAGS) \
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$(LLVM_CXXFLAGS)
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-if LLVM_NEEDS_FNORTTI
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-
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-AM_CXXFLAGS += -fno-rtti
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-
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-endif
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-
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libgallium_la_SOURCES += \
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$(GALLIVM_SOURCES) \
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$(GALLIVM_CPP_SOURCES)
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--
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1.8.4
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