diff --git a/clang/lib/Driver/ToolChains/Linux.cpp b/clang/lib/Driver/ToolChains/Linux.cpp index 9663a7390ada..e17a6bd4bdd2 100644 --- a/clang/lib/Driver/ToolChains/Linux.cpp +++ b/clang/lib/Driver/ToolChains/Linux.cpp @@ -236,6 +236,15 @@ Linux::Linux(const Driver &D, const llvm::Triple &Triple, const ArgList &Args) ExtraOpts.push_back("relro"); } + if (Triple.isAndroid() && Triple.isAndroidVersionLT(29)) { + // https://github.com/android/ndk/issues/1196 + // The unwinder used by the crash handler on versions of Android prior to + // API 29 did not correctly handle binaries built with rosegment, which is + // enabled by default for LLD. Android only supports LLD, so it's not an + // issue that this flag is not accepted by other linkers. + ExtraOpts.push_back("--no-rosegment"); + } + // Android ARM/AArch64 use max-page-size=4096 to reduce VMA usage. Note, lld // from 11 onwards default max-page-size to 65536 for both ARM and AArch64. if ((Triple.isARM() || Triple.isAArch64()) && Triple.isAndroid()) { diff --git a/clang/test/Driver/linux-ld.c b/clang/test/Driver/linux-ld.c index 24d3c78643f8..0b788ffcb852 100644 --- a/clang/test/Driver/linux-ld.c +++ b/clang/test/Driver/linux-ld.c @@ -1089,6 +1089,20 @@ // CHECK-ANDROID-HASH-STYLE-M: "{{.*}}ld{{(.exe)?}}" // CHECK-ANDROID-HASH-STYLE-M: "--hash-style=gnu" +// Check that we pass --no-rosegment for pre-29 Android versions and do not for +// 29+. +// RUN: %clang %s -### -o %t.o 2>&1 \ +// RUN: --target=armv7-linux-android28 \ +// RUN: | FileCheck --check-prefix=CHECK-ANDROID-ROSEGMENT-28 %s +// CHECK-ANDROID-ROSEGMENT-28: "{{.*}}ld{{(.exe)?}}" +// CHECK-ANDROID-ROSEGMENT-28: "--no-rosegment" +// +// RUN: %clang %s -### -o %t.o 2>&1 \ +// RUN: --target=armv7-linux-android29 \ +// RUN: | FileCheck --check-prefix=CHECK-ANDROID-ROSEGMENT-29 %s +// CHECK-ANDROID-ROSEGMENT-29: "{{.*}}ld{{(.exe)?}}" +// CHECK-ANDROID-ROSEGMENT-29-NOT: "--no-rosegment" + // RUN: %clang %s -### -o %t.o 2>&1 \ // RUN: --target=armv7-linux-android21 \ // RUN: | FileCheck --check-prefix=CHECK-ANDROID-NOEXECSTACK %s