From 316ef3d9be995c3e625266386afeeb037a255180 Mon Sep 17 00:00:00 2001 From: Gabe Black Date: Mon, 20 Nov 2017 18:21:19 -0800 Subject: scons: Move some compiler flag setting code to the SConstruct. These settings are invariant, so there's no reason to apply them over and over again for the child environments used for various build products. Change-Id: Icb4053105e4f1c43008f2422ba30c7206b7ff365 Reviewed-on: https://gem5-review.googlesource.com/5981 Reviewed-by: Andreas Sandberg Reviewed-by: Nikos Nikoleris Maintainer: Andreas Sandberg --- SConstruct | 35 +++++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) (limited to 'SConstruct') diff --git a/SConstruct b/SConstruct index 095b58be4..36db2162c 100755 --- a/SConstruct +++ b/SConstruct @@ -473,6 +473,25 @@ if main['GCC']: if compareVersions(gcc_version, "5.0") > 0: main.Append(CCFLAGS=['-Wno-error=suggest-override']) + # The address sanitizer is available for gcc >= 4.8 + if GetOption('with_asan'): + if GetOption('with_ubsan') and \ + compareVersions(env['GCC_VERSION'], '4.9') >= 0: + env.Append(CCFLAGS=['-fsanitize=address,undefined', + '-fno-omit-frame-pointer'], + LINKFLAGS='-fsanitize=address,undefined') + else: + env.Append(CCFLAGS=['-fsanitize=address', + '-fno-omit-frame-pointer'], + LINKFLAGS='-fsanitize=address') + # Only gcc >= 4.9 supports UBSan, so check both the version + # and the command-line option before adding the compiler and + # linker flags. + elif GetOption('with_ubsan') and \ + compareVersions(env['GCC_VERSION'], '4.9') >= 0: + env.Append(CCFLAGS='-fsanitize=undefined') + env.Append(LINKFLAGS='-fsanitize=undefined') + elif main['CLANG']: # Check for a supported version of clang, >= 3.1 is needed to # support similar features as gcc 4.8. See @@ -513,6 +532,22 @@ elif main['CLANG']: if sys.platform.startswith('freebsd'): main.Append(LIBS=['thr']) + # We require clang >= 3.1, so there is no need to check any + # versions here. + if GetOption('with_ubsan'): + if GetOption('with_asan'): + env.Append(CCFLAGS=['-fsanitize=address,undefined', + '-fno-omit-frame-pointer'], + LINKFLAGS='-fsanitize=address,undefined') + else: + env.Append(CCFLAGS='-fsanitize=undefined', + LINKFLAGS='-fsanitize=undefined') + + elif GetOption('with_asan'): + env.Append(CCFLAGS=['-fsanitize=address', + '-fno-omit-frame-pointer'], + LINKFLAGS='-fsanitize=address') + else: print termcap.Yellow + termcap.Bold + 'Error' + termcap.Normal, print "Don't know what compiler options to use for your compiler." -- cgit v1.2.3