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authorJosh Poimboeuf <jpoimboe@redhat.com>2017-06-28 10:11:07 -0500
committerIngo Molnar <mingo@kernel.org>2017-06-30 10:19:19 +0200
commitbaa41469a7b992c1e3db2a39854219cc7442e48f (patch)
tree1a8e43a0d5e27db457c1cc6f8a4510b258b46bee /tools/objtool/warn.h
parentc207aee48037abca71c669cbec407b9891965c34 (diff)
objtool: Implement stack validation 2.0
This is a major rewrite of objtool. Instead of only tracking frame pointer changes, it now tracks all stack-related operations, including all register saves/restores. In addition to making stack validation more robust, this also paves the way for undwarf generation. Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Andy Lutomirski <luto@kernel.org> Cc: Jiri Slaby <jslaby@suse.cz> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: live-patching@vger.kernel.org Link: http://lkml.kernel.org/r/678bd94c0566c6129bcc376cddb259c4c5633004.1498659915.git.jpoimboe@redhat.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'tools/objtool/warn.h')
-rw-r--r--tools/objtool/warn.h10
1 files changed, 10 insertions, 0 deletions
diff --git a/tools/objtool/warn.h b/tools/objtool/warn.h
index ac7e07523e84..afd9f7a05f6d 100644
--- a/tools/objtool/warn.h
+++ b/tools/objtool/warn.h
@@ -18,6 +18,13 @@
#ifndef _WARN_H
#define _WARN_H
+#include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include "elf.h"
+
extern const char *objname;
static inline char *offstr(struct section *sec, unsigned long offset)
@@ -57,4 +64,7 @@ static inline char *offstr(struct section *sec, unsigned long offset)
free(_str); \
})
+#define WARN_ELF(format, ...) \
+ WARN(format ": %s", ##__VA_ARGS__, elf_errmsg(-1))
+
#endif /* _WARN_H */