[lld-macho] Only enable __DATA_CONST for newer platforms

Matches ld64.

Reviewed By: #lld-macho, alexander-shaposhnikov

Differential Revision: https://reviews.llvm.org/D105080

Author: int3

lld/MachO/Driver.cpp

@@ -841,6 +841,20 @@ static std::vector<SectionAlign> parseSectAlign(const opt::InputArgList &args) {
 }
 
 static bool dataConstDefault(const InputArgList &args) {
+  static const std::map<PlatformKind, VersionTuple> minVersion = {
+      {PlatformKind::macOS, VersionTuple(10, 15)},
+      {PlatformKind::iOS, VersionTuple(13, 0)},
+      {PlatformKind::iOSSimulator, VersionTuple(13, 0)},
+      {PlatformKind::tvOS, VersionTuple(13, 0)},
+      {PlatformKind::tvOSSimulator, VersionTuple(13, 0)},
+      {PlatformKind::watchOS, VersionTuple(6, 0)},
+      {PlatformKind::watchOSSimulator, VersionTuple(6, 0)},
+      {PlatformKind::bridgeOS, VersionTuple(4, 0)}};
+  auto it = minVersion.find(config->platformInfo.target.Platform);
+  if (it != minVersion.end())
+    if (config->platformInfo.minimum < it->second)
+      return false;
+
   switch (config->outputType) {
   case MH_EXECUTE:
     return !args.hasArg(OPT_no_pie);

lld/test/MachO/builtin-rename.s

@@ -10,13 +10,16 @@
 # RUN: %lld                -o %t/ydata %t/main.o %t/renames.o -lSystem
 # RUN: %lld -no_data_const -o %t/ndata %t/main.o %t/renames.o -lSystem
 # RUN: %lld -no_pie        -o %t/nopie %t/main.o %t/renames.o -lSystem
+# RUN: %lld -platform_version macos 10.14 11.0 -o %t/old %t/main.o %t/renames.o -lSystem
 
 # RUN: llvm-objdump --syms %t/ydata | \
 # RUN:     FileCheck %s --check-prefixes=CHECK,YDATA
 # RUN: llvm-objdump --syms %t/ndata | \
 # RUN:     FileCheck %s --check-prefixes=CHECK,NDATA
 # RUN: llvm-objdump --syms %t/nopie | \
 # RUN:     FileCheck %s --check-prefixes=CHECK,NDATA
+# RUN: llvm-objdump --syms %t/old | \
+# RUN:     FileCheck %s --check-prefixes=CHECK,NDATA
 
 # CHECK-LABEL: {{^}}SYMBOL TABLE: