Don't use "asm volatile" outside of functions.

Clang 11 throws an error if you do.

3rdp/build/GNUmakefile

@@ -48,7 +48,7 @@ $(JS_SRC): | $(3RDPSRCDIR)
 $(JS_IDIR): | $(3RDPODIR)
 	$(QUIET)$(IFNOTEXIST) mkdir $(JS_IDIR)
 
-$(JSLIB_BUILD): $(3RDP_ROOT)$(DIRSEP)dist/libmozjs.tgz $(3RDP_ROOT)$(DIRSEP)build/js_src_jsnativestack_cpp.patch $(3RDP_ROOT)$(DIRSEP)build/js-configure.patch $(3RDP_ROOT)$(DIRSEP)build/js-configure.in.patch $(3RDP_ROOT)$(DIRSEP)build/imacro-asm-fix.patch | $(JS_SRC) $(JS_IDIR)
+$(JSLIB_BUILD): $(3RDP_ROOT)$(DIRSEP)dist/libmozjs.tgz $(3RDP_ROOT)$(DIRSEP)build/js_src_jsnativestack_cpp.patch $(3RDP_ROOT)$(DIRSEP)build/js-configure.patch $(3RDP_ROOT)$(DIRSEP)build/js-configure.in.patch $(3RDP_ROOT)$(DIRSEP)build/imacro-asm-fix.patch $(3RDP_ROOT)$(DIRSEP)build/js-volatile-outside-functions.patch | $(JS_SRC) $(JS_IDIR)
 	@echo Creating $@ ...
 	$(QUIET)-rm -rf $(JS_SRC)/*
 	$(QUIET)tar -xzC $(JS_SRC) -f $(3RDPDISTDIR)$(DIRSEP)libmozjs.tgz
@@ -57,6 +57,7 @@ $(JSLIB_BUILD): $(3RDP_ROOT)$(DIRSEP)dist/libmozjs.tgz $(3RDP_ROOT)$(DIRSEP)buil
 	$(QUIET)patch -b -p0 -d $(JS_SRC) < js-configure.patch
 	$(QUIET)patch -b -p0 -d $(JS_SRC) < js-configure.in.patch
 	$(QUIET)patch -b -p0 -d $(JS_SRC) < imacro-asm-fix.patch
+	$(QUIET)patch -b -p0 -d $(JS_SRC) < js-volatile-outside-functions.patch
 	-$(QUIET)cd $(JS_SRC)$(DIRSEP)js-1.8.5$(DIRSEP)js$(DIRSEP)src && autoconf-2.13
 	$(QUIET)cd $(JS_SRC)$(DIRSEP)js-1.8.5$(DIRSEP)js$(DIRSEP)src && env $(JS_CONFIGURE_ENV) ./configure $(JS_CONFIGURE_ARGS)
 	$(QUIET)$(MAKE) -C $(JS_SRC)$(DIRSEP)js-1.8.5$(DIRSEP)js$(DIRSEP)src

3rdp/build/js-volatile-outside-functions.patch

+diff -ur ../mozjs-pre/js-1.8.5/js/src/methodjit/MethodJIT.cpp ./js-1.8.5/js/src/methodjit/MethodJIT.cpp
+--- ../mozjs-pre/js-1.8.5/js/src/methodjit/MethodJIT.cpp	2021-03-13 19:50:35.282449000 -0500
++++ ./js-1.8.5/js/src/methodjit/MethodJIT.cpp	2021-03-13 19:53:09.753422000 -0500
+@@ -189,7 +189,7 @@
+ JS_STATIC_ASSERT(JSVAL_TAG_MASK == 0xFFFF800000000000LL);
+ JS_STATIC_ASSERT(JSVAL_PAYLOAD_MASK == 0x00007FFFFFFFFFFFLL);
+ 
+-asm volatile (
++asm (
+ ".text\n"
+ ".globl " SYMBOL_STRING(JaegerTrampoline) "\n"
+ SYMBOL_STRING(JaegerTrampoline) ":"       "\n"
+@@ -236,7 +236,7 @@
+     "jmp *0(%rsp)"                      "\n"
+ );
+ 
+-asm volatile (
++asm (
+ ".text\n"
+ ".globl " SYMBOL_STRING(JaegerTrampolineReturn) "\n"
+ SYMBOL_STRING(JaegerTrampolineReturn) ":"       "\n"
+@@ -256,7 +256,7 @@
+     "ret"                                "\n"
+ );
+ 
+-asm volatile (
++asm (
+ ".text\n"
+ ".globl " SYMBOL_STRING(JaegerThrowpoline)  "\n"
+ SYMBOL_STRING(JaegerThrowpoline) ":"        "\n"
+@@ -281,7 +281,7 @@
+ 
+ JS_STATIC_ASSERT(offsetof(VMFrame, regs.fp) == 0x38);
+ 
+-asm volatile (
++asm (
+ ".text\n"
+ ".globl " SYMBOL_STRING(InjectJaegerReturn)   "\n"
+ SYMBOL_STRING(InjectJaegerReturn) ":"         "\n"
+@@ -309,7 +309,7 @@
+ JS_STATIC_ASSERT(offsetof(VMFrame, savedEBX) == 0x2c);
+ JS_STATIC_ASSERT(offsetof(VMFrame, regs.fp) == 0x1C);
+ 
+-asm volatile (
++asm (
+ ".text\n"
+ ".globl " SYMBOL_STRING(JaegerTrampoline) "\n"
+ SYMBOL_STRING(JaegerTrampoline) ":"       "\n"
+@@ -339,7 +339,7 @@
+     "jmp *16(%ebp)"                      "\n"
+ );
+ 
+-asm volatile (
++asm (
+ ".text\n"
+ ".globl " SYMBOL_STRING(JaegerTrampolineReturn) "\n"
+ SYMBOL_STRING(JaegerTrampolineReturn) ":" "\n"
+@@ -357,7 +357,7 @@
+     "ret"                                "\n"
+ );
+ 
+-asm volatile (
++asm (
+ ".text\n"
+ ".globl " SYMBOL_STRING(JaegerThrowpoline)  "\n"
+ SYMBOL_STRING(JaegerThrowpoline) ":"        "\n"
+@@ -388,7 +388,7 @@
+ 
+ JS_STATIC_ASSERT(offsetof(VMFrame, regs.fp) == 0x1C);
+ 
+-asm volatile (
++asm (
+ ".text\n"
+ ".globl " SYMBOL_STRING(InjectJaegerReturn)   "\n"
+ SYMBOL_STRING(InjectJaegerReturn) ":"         "\n"
+@@ -423,7 +423,7 @@
+ #define FUNCTION_HEADER_EXTRA
+ #endif
+ 
+-asm volatile (
++asm (
+ ".text\n"
+ FUNCTION_HEADER_EXTRA
+ ".globl " SYMBOL_STRING(InjectJaegerReturn) "\n"
+@@ -436,7 +436,7 @@
+     "bx  lr"                                "\n"
+ );
+ 
+-asm volatile (
++asm (
+ ".text\n"
+ FUNCTION_HEADER_EXTRA
+ ".globl " SYMBOL_STRING(JaegerTrampoline)   "\n"
+@@ -495,7 +495,7 @@
+ "   bx     r4"                                  "\n"
+ );
+ 
+-asm volatile (
++asm (
+ ".text\n"
+ FUNCTION_HEADER_EXTRA
+ ".globl " SYMBOL_STRING(JaegerTrampolineReturn)   "\n"
+@@ -515,7 +515,7 @@
+ "   pop     {r4-r11,pc}"                    "\n"
+ );
+ 
+-asm volatile (
++asm (
+ ".text\n"
+ FUNCTION_HEADER_EXTRA
+ ".globl " SYMBOL_STRING(JaegerThrowpoline)  "\n"
+@@ -540,7 +540,7 @@
+ "   pop     {r4-r11,pc}"                    "\n"
+ );
+ 
+-asm volatile (
++asm (
+ ".text\n"
+ FUNCTION_HEADER_EXTRA
+ ".globl " SYMBOL_STRING(JaegerStubVeneer)   "\n"