Merge tag 'docs-6.0' of git://git.lwn.net/linux

[sfrench/cifs-2.6.git] / tools / include / linux / objtool.h

diff --git a/tools/include/linux/objtool.h b/tools/include/linux/objtool.h
index 15b940ec1eac9d72c0f35c34e52d368fe00a5219..62c54ffbeeaacc74aa9e52697ab11d7deec92d82 100644 (file)
--- a/tools/include/linux/objtool.h
+++ b/tools/include/linux/objtool.h
@@ -32,11 +32,16 @@ struct unwind_hint {
  *
  * UNWIND_HINT_FUNC: Generate the unwind metadata of a callable function.
  * Useful for code which doesn't have an ELF function annotation.
+ *
+ * UNWIND_HINT_ENTRY: machine entry without stack, SYSCALL/SYSENTER etc.
  */
 #define UNWIND_HINT_TYPE_CALL          0
 #define UNWIND_HINT_TYPE_REGS          1
 #define UNWIND_HINT_TYPE_REGS_PARTIAL  2
 #define UNWIND_HINT_TYPE_FUNC          3
+#define UNWIND_HINT_TYPE_ENTRY         4
+#define UNWIND_HINT_TYPE_SAVE          5
+#define UNWIND_HINT_TYPE_RESTORE       6
 
 #ifdef CONFIG_OBJTOOL
 
@@ -62,7 +67,7 @@ struct unwind_hint {
  * It should only be used in special cases where you're 100% sure it won't
  * affect the reliability of frame pointers and kernel stack traces.
  *
- * For more information, see tools/objtool/Documentation/stack-validation.txt.
+ * For more information, see tools/objtool/Documentation/objtool.txt.
  */
 #define STACK_FRAME_NON_STANDARD(func) \
        static void __used __section(".discard.func_stack_frame_non_standard") \
@@ -124,7 +129,7 @@ struct unwind_hint {
  * the debuginfo as necessary.  It will also warn if it sees any
  * inconsistencies.
  */
-.macro UNWIND_HINT sp_reg:req sp_offset=0 type:req end=0
+.macro UNWIND_HINT type:req sp_reg=0 sp_offset=0 end=0
 .Lunwind_hint_ip_\@:
        .pushsection .discard.unwind_hints
                /* struct unwind_hint */
@@ -177,7 +182,7 @@ struct unwind_hint {
 #define ASM_REACHABLE
 #else
 #define ANNOTATE_INTRA_FUNCTION_CALL
-.macro UNWIND_HINT sp_reg:req sp_offset=0 type:req end=0
+.macro UNWIND_HINT type:req sp_reg=0 sp_offset=0 end=0
 .endm
 .macro STACK_FRAME_NON_STANDARD func:req
 .endm