build: Improve -momit-leaf-frame-pointer usage
-momit-leaf-frame-pointer is only supported on certain archs. Detect this automatically based on which flags the compiler understands.
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5
Makefile
5
Makefile
@ -84,12 +84,11 @@ endif
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# compile with -O2 if debug level is not 2
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# compile with -O2 if debug level is not 2
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ifneq ($(DEBUG_LEVEL), 2)
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ifneq ($(DEBUG_LEVEL), 2)
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OPT += -O2 -fno-omit-frame-pointer
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OPT += -O2 -fno-omit-frame-pointer
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ifeq (,$(findstring ppc64,$(MACHINE))) # ppc64[le] doesn't support -momit-leaf-frame-pointer
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# Skip for archs that don't support -momit-leaf-frame-pointer
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ifneq ($(MACHINE),armv7l)
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ifeq (,$(shell $(CXX) -fsyntax-only -momit-leaf-frame-pointer -xc /dev/null 2>&1))
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OPT += -momit-leaf-frame-pointer
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OPT += -momit-leaf-frame-pointer
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endif
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endif
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endif
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endif
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endif
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# if we're compiling for release, compile without debug code (-DNDEBUG) and
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# if we're compiling for release, compile without debug code (-DNDEBUG) and
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# don't treat warnings as errors
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# don't treat warnings as errors
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