lkdtm: Add kernel version to failure hints

[linux-2.6-microblaze.git] / drivers / misc / lkdtm / lkdtm.h

diff --git a/drivers/misc/lkdtm/lkdtm.h b/drivers/misc/lkdtm/lkdtm.h
index 99f90d3..d7d64d9 100644 (file)
--- a/drivers/misc/lkdtm/lkdtm.h
+++ b/drivers/misc/lkdtm/lkdtm.h
@@ -5,6 +5,51 @@
 #define pr_fmt(fmt) "lkdtm: " fmt
 
 #include <linux/kernel.h>
+#include <generated/compile.h>
+#include <generated/utsrelease.h>
+
+#define LKDTM_KERNEL "kernel (" UTS_RELEASE " " UTS_MACHINE ")"
+
+#define pr_expected_config(kconfig)                            \
+{                                                              \
+       if (IS_ENABLED(kconfig))                                \
+               pr_err("Unexpected! This " LKDTM_KERNEL " was built with " #kconfig "=y\n"); \
+       else                                                    \
+               pr_warn("This is probably expected, since this " LKDTM_KERNEL " was built *without* " #kconfig "=y\n"); \
+}
+
+#ifndef MODULE
+int lkdtm_check_bool_cmdline(const char *param);
+#define pr_expected_config_param(kconfig, param)               \
+{                                                              \
+       if (IS_ENABLED(kconfig)) {                              \
+               switch (lkdtm_check_bool_cmdline(param)) {      \
+               case 0:                                         \
+                       pr_warn("This is probably expected, since this " LKDTM_KERNEL " was built with " #kconfig "=y but booted with '" param "=N'\n"); \
+                       break;                                  \
+               case 1:                                         \
+                       pr_err("Unexpected! This " LKDTM_KERNEL " was built with " #kconfig "=y and booted with '" param "=Y'\n"); \
+                       break;                                  \
+               default:                                        \
+                       pr_err("Unexpected! This " LKDTM_KERNEL " was built with " #kconfig "=y (and booted without '" param "' specified)\n"); \
+               }                                               \
+       } else {                                                \
+               switch (lkdtm_check_bool_cmdline(param)) {      \
+               case 0:                                         \
+                       pr_warn("This is probably expected, as this " LKDTM_KERNEL " was built *without* " #kconfig "=y and booted with '" param "=N'\n"); \
+                       break;                                  \
+               case 1:                                         \
+                       pr_err("Unexpected! This " LKDTM_KERNEL " was built *without* " #kconfig "=y but booted with '" param "=Y'\n"); \
+                       break;                                  \
+               default:                                        \
+                       pr_err("This is probably expected, since this " LKDTM_KERNEL " was built *without* " #kconfig "=y (and booted without '" param "' specified)\n"); \
+                       break;                                  \
+               }                                               \
+       }                                                       \
+}
+#else
+#define pr_expected_config_param(kconfig, param) pr_expected_config(kconfig)
+#endif
 
 /* bugs.c */
 void __init lkdtm_bugs_init(int *recur_param);
@@ -33,17 +78,18 @@ void lkdtm_STACK_GUARD_PAGE_TRAILING(void);
 void lkdtm_UNSET_SMEP(void);
 void lkdtm_DOUBLE_FAULT(void);
 void lkdtm_CORRUPT_PAC(void);
-void lkdtm_FORTIFY_OBJECT(void);
-void lkdtm_FORTIFY_SUBOBJECT(void);
 
 /* heap.c */
 void __init lkdtm_heap_init(void);
 void __exit lkdtm_heap_exit(void);
-void lkdtm_OVERWRITE_ALLOCATION(void);
+void lkdtm_VMALLOC_LINEAR_OVERFLOW(void);
+void lkdtm_SLAB_LINEAR_OVERFLOW(void);
 void lkdtm_WRITE_AFTER_FREE(void);
 void lkdtm_READ_AFTER_FREE(void);
 void lkdtm_WRITE_BUDDY_AFTER_FREE(void);
 void lkdtm_READ_BUDDY_AFTER_FREE(void);
+void lkdtm_SLAB_INIT_ON_ALLOC(void);
+void lkdtm_BUDDY_INIT_ON_ALLOC(void);
 void lkdtm_SLAB_FREE_DOUBLE(void);
 void lkdtm_SLAB_FREE_CROSS(void);
 void lkdtm_SLAB_FREE_PAGE(void);
@@ -106,6 +152,8 @@ void lkdtm_STACKLEAK_ERASING(void);
 void lkdtm_CFI_FORWARD_PROTO(void);
 
 /* fortify.c */
+void lkdtm_FORTIFIED_OBJECT(void);
+void lkdtm_FORTIFIED_SUBOBJECT(void);
 void lkdtm_FORTIFIED_STRSCPY(void);
 
 /* powerpc.c */