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[Darwin] Enable -fstack-protector (back) by default with -ffreestanding 

Go back to behavior prior to r289005.

rdar://problem/32987198

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@312595 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Bruno Cardoso Lopes 2017-09-05 23:50:58 +00:00
parent 76d5546427
commit 804ffcea63
2 changed files with 5 additions and 17 deletions
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5
lib/Driver/ToolChains/Clang.cpp
View File

@ -2302,11 +2302,6 @@ static void RenderSSPOptions(const ToolChain &TC, const ArgList &Args,
else if (A->getOption().matches(options::OPT_fstack_protector_all))
StackProtectorLevel = LangOptions::SSPReq;
} else {
// Only use a default stack protector on Darwin in case -ffreestanding is
// not specified.
if (EffectiveTriple.isOSDarwin() && !IsHosted)
StackProtectorLevel = 0;
else
StackProtectorLevel = DefaultStackProtectorLevel;
}

17
test/Driver/stack-protector.c
View File

@ -36,27 +36,20 @@
// Test default stack protector values for Darwin platforms
// RUN: %clang -target armv7k-apple-watchos2.0 -### %s 2>&1 | FileCheck %s -check-prefix=SSP_WATCHOS
// RUN: %clang -ffreestanding -target armv7k-apple-watchos2.0 -### %s 2>&1 | FileCheck %s -check-prefix=SSP_WATCHOS
// SSP_WATCHOS: "-stack-protector" "1"
// RUN: %clang -target arm64-apple-ios8.0.0 -### %s 2>&1 | FileCheck %s -check-prefix=SSP_IOS
// RUN: %clang -ffreestanding -target arm64-apple-ios8.0.0 -### %s 2>&1 | FileCheck %s -check-prefix=SSP_IOS
// SSP_IOS: "-stack-protector" "1"
// RUN: %clang -target x86_64-apple-darwin10 -mmacosx-version-min=10.6 -### %s 2>&1 | FileCheck %s -check-prefix=SSP_MACOSX
// RUN: %clang -ffreestanding -target x86_64-apple-darwin10 -mmacosx-version-min=10.6 -### %s 2>&1 | FileCheck %s -check-prefix=SSP_MACOSX
// SSP_MACOSX: "-stack-protector" "1"
// RUN: %clang -target x86_64-apple-darwin10 -mmacosx-version-min=10.5 -### %s 2>&1 | FileCheck %s -check-prefix=SSP_MACOSX_10_5
// RUN: %clang -ffreestanding -target x86_64-apple-darwin10 -mmacosx-version-min=10.5 -### %s 2>&1 | FileCheck %s -check-prefix=SSP_MACOSX_10_5
// SSP_MACOSX_10_5: "-stack-protector" "1"
// RUN: %clang -target x86_64-apple-darwin10 -mmacosx-version-min=10.5 -mkernel -### %s 2>&1 | FileCheck %s -check-prefix=SSP_MACOSX_KERNEL
// SSP_MACOSX_KERNEL-NOT: "-stack-protector"
// RUN: %clang -target x86_64-apple-darwin10 -mmacosx-version-min=10.6 -### %s 2>&1 | FileCheck %s -check-prefix=SSP_MACOSX_10_6_KERNEL
// RUN: %clang -ffreestanding -target x86_64-apple-darwin10 -mmacosx-version-min=10.6 -### %s 2>&1 | FileCheck %s -check-prefix=SSP_MACOSX_10_6_KERNEL
// SSP_MACOSX_10_6_KERNEL: "-stack-protector" "1"
// Test default stack protector values for Darwin platforms with -ffreestanding
// RUN: %clang -ffreestanding -target armv7k-apple-watchos2.0 -### %s 2>&1 | FileCheck %s -check-prefix=SSP_FREE_WATCHOS
// SSP_FREE_WATCHOS-NOT: "-stack-protector"
// RUN: %clang -ffreestanding -target arm64-apple-ios8.0.0 -### %s 2>&1 | FileCheck %s -check-prefix=SSP_FREE_IOS
// SSP_FREE_IOS-NOT: "-stack-protector"
// RUN: %clang -ffreestanding -target x86_64-apple-darwin10 -mmacosx-version-min=10.6 -### %s 2>&1 | FileCheck %s -check-prefix=SSP_FREE_MACOSX
// SSP_FREE_MACOSX-NOT: "-stack-protector"
// RUN: %clang -ffreestanding -target x86_64-apple-darwin10 -mmacosx-version-min=10.5 -### %s 2>&1 | FileCheck %s -check-prefix=SSP_FREE_MACOSX_10_5
// SSP_FREE_MACOSX_10_5-NOT: "-stack-protector"
// RUN: %clang -ffreestanding -target x86_64-apple-darwin10 -mmacosx-version-min=10.6 -### %s 2>&1 | FileCheck %s -check-prefix=SSP_FREE_MACOSX_10_6_KERNEL
// SSP_FREE_MACOSX_10_6_KERNEL-NOT: "-stack-protector"