build: switch to using lld for macOS builds

Adjust the security check for:
ld64.lld: warning: Option `-allow_stack_execute' is not yet implemented.
ld64.lld: error: -fixup_chains is incompatible with -no_pie
and to account for the embedding of LLVMs version number.

Author: fanquake

contrib/devtools/symbol-check.py

@@ -240,7 +240,7 @@ def check_MACHO_sdk(binary) -> bool:
     return False
 
 def check_MACHO_ld64(binary) -> bool:
-    if binary.build_version.tools[0].version == [711, 0, 0]:
+    if binary.build_version.tools[0].version == [17, 0, 6]:
         return True
     return False
 

contrib/devtools/test-security-check.py

@@ -120,21 +120,15 @@ def test_MACHO(self):
         arch = get_arch(cc, source, executable)
 
         if arch == lief.ARCHITECTURES.X86:
-            self.assertEqual(call_security_check(cc, source, executable, ['-Wl,-no_pie','-Wl,-flat_namespace','-Wl,-allow_stack_execute','-fno-stack-protector', '-Wl,-no_fixup_chains']),
-                (1, executable+': failed NOUNDEFS Canary FIXUP_CHAINS PIE NX CONTROL_FLOW'))
-            self.assertEqual(call_security_check(cc, source, executable, ['-Wl,-no_pie','-Wl,-flat_namespace','-Wl,-allow_stack_execute','-fno-stack-protector', '-Wl,-fixup_chains']),
-                (1, executable+': failed NOUNDEFS Canary PIE NX CONTROL_FLOW'))
-            self.assertEqual(call_security_check(cc, source, executable, ['-Wl,-no_pie','-Wl,-flat_namespace','-Wl,-allow_stack_execute','-fstack-protector-all', '-Wl,-fixup_chains']),
-                (1, executable+': failed NOUNDEFS PIE NX CONTROL_FLOW'))
-            self.assertEqual(call_security_check(cc, source, executable, ['-Wl,-no_pie','-Wl,-flat_namespace','-fstack-protector-all', '-Wl,-fixup_chains']),
-                (1, executable+': failed NOUNDEFS PIE CONTROL_FLOW'))
-            self.assertEqual(call_security_check(cc, source, executable, ['-Wl,-no_pie','-fstack-protector-all', '-Wl,-fixup_chains']),
-                (1, executable+': failed PIE CONTROL_FLOW'))
-            self.assertEqual(call_security_check(cc, source, executable, ['-Wl,-no_pie','-fstack-protector-all', '-Wl,-fixup_chains']),
-                (1, executable+': failed PIE CONTROL_FLOW'))
-            self.assertEqual(call_security_check(cc, source, executable, ['-Wl,-no_pie','-fstack-protector-all', '-fcf-protection=full', '-Wl,-fixup_chains']),
-                (1, executable+': failed PIE'))
-            self.assertEqual(call_security_check(cc, source, executable, ['-Wl,-pie','-fstack-protector-all', '-fcf-protection=full', '-Wl,-fixup_chains']),
+            self.assertEqual(call_security_check(cc, source, executable, ['-Wl,-no_pie','-Wl,-flat_namespace','-fno-stack-protector', '-Wl,-no_fixup_chains']),
+                (1, executable+': failed NOUNDEFS Canary FIXUP_CHAINS PIE CONTROL_FLOW'))
+            self.assertEqual(call_security_check(cc, source, executable, ['-Wl,-flat_namespace','-fno-stack-protector', '-Wl,-fixup_chains']),
+                (1, executable+': failed NOUNDEFS Canary CONTROL_FLOW'))
+            self.assertEqual(call_security_check(cc, source, executable, ['-Wl,-flat_namespace','-fstack-protector-all', '-Wl,-fixup_chains']),
+                (1, executable+': failed NOUNDEFS CONTROL_FLOW'))
+            self.assertEqual(call_security_check(cc, source, executable, ['-fstack-protector-all', '-Wl,-fixup_chains']),
+                (1, executable+': failed CONTROL_FLOW'))
+            self.assertEqual(call_security_check(cc, source, executable, ['-fstack-protector-all', '-fcf-protection=full', '-Wl,-fixup_chains']),
                 (0, ''))
         else:
             # arm64 darwin doesn't support non-PIE binaries, control flow or executable stacks

depends/hosts/darwin.mk

@@ -115,7 +115,7 @@ darwin_LDFLAGS=-Wl,-platform_version,macos,$(OSX_MIN_VERSION),$(OSX_SDK_VERSION)
 ifneq ($(build_os),darwin)
 darwin_CFLAGS += -mlinker-version=$(LD64_VERSION)
 darwin_CXXFLAGS += -mlinker-version=$(LD64_VERSION)
-darwin_LDFLAGS += -Wl,-no_adhoc_codesign
+darwin_LDFLAGS += -Wl,-no_adhoc_codesign -fuse-ld=lld
 endif
 
 darwin_release_CFLAGS=-O2

depends/patches/qt/mac-qmake.conf

@@ -13,6 +13,7 @@ QMAKE_MAC_SDK.macosx.Path = $${MAC_SDK_PATH}
 QMAKE_MAC_SDK.macosx.platform_name = macosx
 QMAKE_MAC_SDK.macosx.SDKVersion = $${MAC_SDK_VERSION}
 QMAKE_MAC_SDK.macosx.PlatformPath = /phony
+QMAKE_CXXFLAGS += -fuse-ld=lld
 !host_build: QMAKE_CFLAGS += -target $${MAC_TARGET}
 !host_build: QMAKE_OBJECTIVE_CFLAGS += $$QMAKE_CFLAGS
 !host_build: QMAKE_CXXFLAGS += -target $${MAC_TARGET}