aports/main/clang15/30-Enable-stack-protector-by-default-for-Alpine-Linux.patch
psykose 314d661ecd main/clang15: move from community
needed back in main for libclc
2023-07-11 16:36:20 +02:00

82 lines
3.8 KiB
Diff

--- a/lib/Driver/ToolChains/Linux.h
+++ b/lib/Driver/ToolChains/Linux.h
@@ -11,6 +11,7 @@
#include "Gnu.h"
#include "clang/Driver/ToolChain.h"
+#include "clang/Basic/LangOptions.h"
namespace clang {
namespace driver {
@@ -60,6 +61,15 @@
llvm::DenormalMode getDefaultDenormalModeForType(
const llvm::opt::ArgList &DriverArgs, const JobAction &JA,
const llvm::fltSemantics *FPType = nullptr) const override;
+
+ LangOptions::StackProtectorMode
+ GetDefaultStackProtectorLevel(bool KernelOrKext) const override {
+ StringRef VendorName = Linux::getTriple().getVendorName();
+ if (VendorName.compare("alpine") == 0)
+ return LangOptions::SSPStrong;
+
+ return LangOptions::SSPOff;
+ }
protected:
Tool *buildAssembler() const override;
--- a/test/Driver/fsanitize.c
+++ b/test/Driver/fsanitize.c
@@ -666,12 +666,12 @@
// RUN: %clang -fno-sanitize=safe-stack -### %s 2>&1 | FileCheck %s -check-prefix=NOSP
// NOSP-NOT: "-fsanitize=safe-stack"
-// RUN: %clang -target x86_64-linux-gnu -fsanitize=safe-stack -### %s 2>&1 | FileCheck %s -check-prefix=NO-SP
+// RUN: %clang -target x86_64-linux-gnu -fsanitize=safe-stack -### %s 2>&1 | FileCheck %s -check-prefix=SP
// RUN: %clang -target x86_64-linux-gnu -fsanitize=address,safe-stack -### %s 2>&1 | FileCheck %s -check-prefix=SP-ASAN
// RUN: %clang -target x86_64-linux-gnu -fstack-protector -fsanitize=safe-stack -### %s 2>&1 | FileCheck %s -check-prefix=SP
// RUN: %clang -target x86_64-linux-gnu -fsanitize=safe-stack -fstack-protector-all -### %s 2>&1 | FileCheck %s -check-prefix=SP
-// RUN: %clang -target arm-linux-androideabi -fsanitize=safe-stack -### %s 2>&1 | FileCheck %s -check-prefix=NO-SP
-// RUN: %clang -target aarch64-linux-android -fsanitize=safe-stack -### %s 2>&1 | FileCheck %s -check-prefix=NO-SP
+// RUN: %clang -target arm-linux-androideabi -fsanitize=safe-stack -### %s 2>&1 | FileCheck %s -check-prefix=SP
+// RUN: %clang -target aarch64-linux-android -fsanitize=safe-stack -### %s 2>&1 | FileCheck %s -check-prefix=SP
// RUN: %clang -target i386-contiki-unknown -fsanitize=safe-stack -### %s 2>&1 | FileCheck %s -check-prefix=NO-SP
// NO-SP-NOT: stack-protector
// NO-SP: "-fsanitize=safe-stack"
--- a/test/Driver/stack-protector.c
+++ b/test/Driver/stack-protector.c
@@ -33,6 +33,22 @@
// SSP-PS4-BUF: "-stack-protector" "2"
// SSP-PS4-BUF: "-stack-protector-buffer-size" "16"
+// Test default stack protector values for Alpine
+
+// RUN: %clang -target x86_64-alpine-linux-musl -### %s 2>&1 | FileCheck %s -check-prefix=ALPINE
+// ALPINE: "-stack-protector" "2"
+
+// RUN: %clang -target x86_64-alpine-linux-musl -fstack-protector -### %s 2>&1 | FileCheck %s -check-prefix=ALPINE_SPS
+// ALPINE_SPS: "-stack-protector" "2"
+
+// RUN: %clang -target x86_64-alpine-linux-musl -fstack-protector-all -### %s 2>&1 | FileCheck %s -check-prefix=ALPINE_ALL
+// ALPINE_ALL: "-stack-protector" "3"
+// ALPINE_ALL-NOT: "-stack-protector-buffer-size"
+
+// RUN: %clang -target x86_64-alpine-linux-musl -fno-stack-protector -### %s 2>&1 | FileCheck %s -check-prefix=ALPINE_NOSSP
+// ALPINE_NOSSP-NOT: "-stack-protector"
+// ALPINE_NOSSP-NOT: "-stack-protector-buffer-size"
+
// Test default stack protector values for Darwin platforms
// RUN: %clang -target armv7k-apple-watchos2.0 -### %s 2>&1 | FileCheck %s -check-prefix=SSP_WATCHOS
--- a/lib/Driver/ToolChains/Gnu.cpp
+++ b/lib/Driver/ToolChains/Gnu.cpp
@@ -563,6 +563,10 @@
// The profile runtime also needs access to system libraries.
getToolChain().addProfileRTLibs(Args, CmdArgs);
+ if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles, options::OPT_nodefaultlibs)) {
+ CmdArgs.push_back("-lssp_nonshared");
+ }
+
if (D.CCCIsCXX() &&
!Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs,
options::OPT_r)) {