Default to -fuse-init-array
Very few ELF platforms still use .ctors/.dtors now. Linux (glibc: 1999-07),
DragonFlyBSD, FreeBSD (2012-03) and Solaris have supported .init_array
for many years. Some architectures like AArch64/RISC-V default to
.init_array . GNU ld and gold can even convert .ctors to .init_array .
It makes more sense to flip the CC1 default, and only uses
-fno-use-init-array on platforms that don't support .init_array .
For example, OpenBSD did not support DT_INIT_ARRAY before Aug 2016
(https://github.com/openbsd/src/commit/86fa57a2792c6374b0849dd7b818a11e676e60ba)
I may miss some ELF platforms that still use .ctors, but their
maintainers can easily diagnose such problems.
Reviewed By: rnk
Differential Revision: https://reviews.llvm.org/D71393
diff --git a/clang/test/Driver/fuchsia.cpp b/clang/test/Driver/fuchsia.cpp
index 6c6034a..b9fecfa 100644
--- a/clang/test/Driver/fuchsia.cpp
+++ b/clang/test/Driver/fuchsia.cpp
@@ -17,7 +17,7 @@
// CHECK-X86_64: "-triple" "x86_64-unknown-fuchsia"
// CHECK-AARCH64: "-triple" "aarch64-unknown-fuchsia"
// CHECK-RISCV64: "-triple" "riscv64-unknown-fuchsia"
-// CHECK: "-fuse-init-array"
+// CHECK-NOT: "-fno-use-init-array"
// CHECK: "-resource-dir" "[[RESOURCE_DIR:[^"]+]]"
// CHECK: "-isysroot" "[[SYSROOT:[^"]+]]"
// CHECK: "-internal-isystem" "{{.*[/\\]}}include{{/|\\\\}}c++{{/|\\\\}}v1"