objtool: Replace __ASSEMBLY__ with __ASSEMBLER__ in header files

While the GCC and Clang compilers already define __ASSEMBLER__
automatically when compiling assembly code, __ASSEMBLY__ is a
macro that only gets defined by the Makefiles in the kernel.
This can be very confusing when switching between userspace
and kernelspace coding, or when dealing with uapi headers that
rather should use __ASSEMBLER__ instead. So let's standardize now
on the __ASSEMBLER__ macro that is provided by the compilers.

This is a completely mechanical patch (done with a simple "sed -i"
statement).

Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://patch.msgid.link/20260619155733.58852-1-thuth@redhat.com

include/linux/objtool.h

@@ -7,7 +7,7 @@
 
 #ifdef CONFIG_OBJTOOL
 
-#ifndef __ASSEMBLY__
+#ifndef __ASSEMBLER__
 
 #define UNWIND_HINT(type, sp_reg, sp_offset, signal)		\
 	"987: \n\t"						\
@@ -53,7 +53,7 @@
 
 #define __ASM_BREF(label)	label ## b
 
-#else /* __ASSEMBLY__ */
+#else /* __ASSEMBLER__ */
 
 /*
  * In asm, there are two kinds of code: normal C-type callable functions and
@@ -102,11 +102,11 @@
 #endif
 .endm
 
-#endif /* __ASSEMBLY__ */
+#endif /* __ASSEMBLER__ */
 
 #else /* !CONFIG_OBJTOOL */
 
-#ifndef __ASSEMBLY__
+#ifndef __ASSEMBLER__
 
 #define UNWIND_HINT(type, sp_reg, sp_offset, signal) "\n\t"
 #define STACK_FRAME_NON_STANDARD(func)

include/linux/objtool_types.h

@@ -2,7 +2,7 @@
 #ifndef _LINUX_OBJTOOL_TYPES_H
 #define _LINUX_OBJTOOL_TYPES_H
 
-#ifndef __ASSEMBLY__
+#ifndef __ASSEMBLER__
 
 #include <linux/types.h>
 
@@ -18,7 +18,7 @@ struct unwind_hint {
 	u8		signal;
 };
 
-#endif /* __ASSEMBLY__ */
+#endif /* __ASSEMBLER__ */
 
 /*
  * UNWIND_HINT_TYPE_UNDEFINED: A blind spot in ORC coverage which can result in