Changeset 288970 in webkit for trunk/Source/JavaScriptCore/offlineasm/arm64.rb

Timestamp:

Feb 2, 2022, 10:50:38 AM (3 years ago)

Author:

[email protected]

Message:

Update computation of FAST_TLS base.
​https://bugs.webkit.org/show_bug.cgi?id=235934

Reviewed by Yusuke Suzuki.

Source/JavaScriptCore:

• assembler/MacroAssemblerARM64.h:

(JSC::MacroAssemblerARM64::loadFromTLS32):
(JSC::MacroAssemblerARM64::loadFromTLS64):
(JSC::MacroAssemblerARM64::storeToTLS32):
(JSC::MacroAssemblerARM64::storeToTLS64):

• assembler/SecureARM64EHashPinsInlines.h:

(JSC::SecureARM64EHashPins::keyForCurrentThread):

• offlineasm/arm64.rb:

Source/WTF:

• wtf/PlatformHave.h:

File:

• trunk/Source/JavaScriptCore/offlineasm/arm64.rb (modified) (2 diffs)

trunk/Source/JavaScriptCore/offlineasm/arm64.rb

@@ -1314 +1314 @@
             end
             $asm.puts "mrs #{tmp}, tpidrro_el0"
+            $asm.puts "#if !HAVE(SIMPLIFIED_FAST_TLS_BASE)"
             $asm.puts "bic #{tmp}, #{tmp}, #7"
+            $asm.puts "#endif"
+
             $asm.puts "ldr #{operands[1].arm64Operand(:ptr)}, [#{tmp}, #{offset}]"
         when "tls_storep"
@@ -1324 +1327 @@
             end
             $asm.puts "mrs #{tmp}, tpidrro_el0"
+            $asm.puts "#if !HAVE(SIMPLIFIED_FAST_TLS_BASE)"
             $asm.puts "bic #{tmp}, #{tmp}, #7"
+            $asm.puts "#endif"
             $asm.puts "str #{operands[0].arm64Operand(:ptr)}, [#{tmp}, #{offset}]"
         when "loadlinkacqb"