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-rw-r--r--lib/bug.c19
-rw-r--r--lib/dynamic_printk.c6
2 files changed, 20 insertions, 5 deletions
diff --git a/lib/bug.c b/lib/bug.c
index bfeafd6..300e41a 100644
--- a/lib/bug.c
+++ b/lib/bug.c
@@ -5,6 +5,8 @@
CONFIG_BUG - emit BUG traps. Nothing happens without this.
CONFIG_GENERIC_BUG - enable this code.
+ CONFIG_GENERIC_BUG_RELATIVE_POINTERS - use 32-bit pointers relative to
+ the containing struct bug_entry for bug_addr and file.
CONFIG_DEBUG_BUGVERBOSE - emit full file+line information for each BUG
CONFIG_BUG and CONFIG_DEBUG_BUGVERBOSE are potentially user-settable
@@ -43,6 +45,15 @@
extern const struct bug_entry __start___bug_table[], __stop___bug_table[];
+static inline unsigned long bug_addr(const struct bug_entry *bug)
+{
+#ifndef CONFIG_GENERIC_BUG_RELATIVE_POINTERS
+ return bug->bug_addr;
+#else
+ return (unsigned long)bug + bug->bug_addr_disp;
+#endif
+}
+
#ifdef CONFIG_MODULES
static LIST_HEAD(module_bug_list);
@@ -55,7 +66,7 @@ static const struct bug_entry *module_find_bug(unsigned long bugaddr)
unsigned i;
for (i = 0; i < mod->num_bugs; ++i, ++bug)
- if (bugaddr == bug->bug_addr)
+ if (bugaddr == bug_addr(bug))
return bug;
}
return NULL;
@@ -108,7 +119,7 @@ const struct bug_entry *find_bug(unsigned long bugaddr)
const struct bug_entry *bug;
for (bug = __start___bug_table; bug < __stop___bug_table; ++bug)
- if (bugaddr == bug->bug_addr)
+ if (bugaddr == bug_addr(bug))
return bug;
return module_find_bug(bugaddr);
@@ -133,7 +144,11 @@ enum bug_trap_type report_bug(unsigned long bugaddr, struct pt_regs *regs)
if (bug) {
#ifdef CONFIG_DEBUG_BUGVERBOSE
+#ifndef CONFIG_GENERIC_BUG_RELATIVE_POINTERS
file = bug->file;
+#else
+ file = (const char *)bug + bug->file_disp;
+#endif
line = bug->line;
#endif
warning = (bug->flags & BUGFLAG_WARNING) != 0;
diff --git a/lib/dynamic_printk.c b/lib/dynamic_printk.c
index d83660f..8e30295 100644
--- a/lib/dynamic_printk.c
+++ b/lib/dynamic_printk.c
@@ -135,7 +135,7 @@ int unregister_dynamic_debug_module(char *mod_name)
nr_entries--;
out:
up(&debug_list_mutex);
- return 0;
+ return ret;
}
EXPORT_SYMBOL_GPL(unregister_dynamic_debug_module);
@@ -289,7 +289,7 @@ static ssize_t pr_debug_write(struct file *file, const char __user *buf,
dynamic_enabled = DYNAMIC_ENABLED_SOME;
err = 0;
printk(KERN_DEBUG
- "debugging enabled for module %s",
+ "debugging enabled for module %s\n",
elem->name);
} else if (!value && (elem->enable == 1)) {
elem->enable = 0;
@@ -309,7 +309,7 @@ static ssize_t pr_debug_write(struct file *file, const char __user *buf,
err = 0;
printk(KERN_DEBUG
"debugging disabled for module "
- "%s", elem->name);
+ "%s\n", elem->name);
}
}
}
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