Revert "x86/objtool: Use asm macros to work around GCC inlining bugs"

[linux-block.git] / include / linux / compiler.h

diff --git a/include/linux/compiler.h b/include/linux/compiler.h
index 06396c1cf127f75bb357326883f1dcb69161ccf1..fc5004a4b07d7b5b546e07f7d952fd1094892ead 100644 (file)
--- a/include/linux/compiler.h
+++ b/include/linux/compiler.h
@@ -99,13 +99,22 @@ void ftrace_likely_update(struct ftrace_likely_data *f, int val,
  * unique, to convince GCC not to merge duplicate inline asm statements.
  */
 #define annotate_reachable() ({                                                \
-       asm volatile("ANNOTATE_REACHABLE counter=%c0"                   \
-                    : : "i" (__COUNTER__));                            \
+       asm volatile("%c0:\n\t"                                         \
+                    ".pushsection .discard.reachable\n\t"              \
+                    ".long %c0b - .\n\t"                               \
+                    ".popsection\n\t" : : "i" (__COUNTER__));          \
 })
 #define annotate_unreachable() ({                                      \
-       asm volatile("ANNOTATE_UNREACHABLE counter=%c0"                 \
-                    : : "i" (__COUNTER__));                            \
+       asm volatile("%c0:\n\t"                                         \
+                    ".pushsection .discard.unreachable\n\t"            \
+                    ".long %c0b - .\n\t"                               \
+                    ".popsection\n\t" : : "i" (__COUNTER__));          \
 })
+#define ASM_UNREACHABLE                                                        \
+       "999:\n\t"                                                      \
+       ".pushsection .discard.unreachable\n\t"                         \
+       ".long 999b - .\n\t"                                            \
+       ".popsection\n\t"
 #else
 #define annotate_reachable()
 #define annotate_unreachable()
@@ -293,45 +302,6 @@ static inline void *offset_to_ptr(const int *off)
        return (void *)((unsigned long)off + *off);
 }
 
-#else /* __ASSEMBLY__ */
-
-#ifdef __KERNEL__
-#ifndef LINKER_SCRIPT
-
-#ifdef CONFIG_STACK_VALIDATION
-.macro ANNOTATE_UNREACHABLE counter:req
-\counter:
-       .pushsection .discard.unreachable
-       .long \counter\()b -.
-       .popsection
-.endm
-
-.macro ANNOTATE_REACHABLE counter:req
-\counter:
-       .pushsection .discard.reachable
-       .long \counter\()b -.
-       .popsection
-.endm
-
-.macro ASM_UNREACHABLE
-999:
-       .pushsection .discard.unreachable
-       .long 999b - .
-       .popsection
-.endm
-#else /* CONFIG_STACK_VALIDATION */
-.macro ANNOTATE_UNREACHABLE counter:req
-.endm
-
-.macro ANNOTATE_REACHABLE counter:req
-.endm
-
-.macro ASM_UNREACHABLE
-.endm
-#endif /* CONFIG_STACK_VALIDATION */
-
-#endif /* LINKER_SCRIPT */
-#endif /* __KERNEL__ */
 #endif /* __ASSEMBLY__ */
 
 /* Compile time object size, -1 for unknown */