Blackfin arch: fix trace output for FLAT binaries
Signed-off-by: Mike Frysinger <michael.frysinger@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/arch/blackfin/kernel/traps.c b/arch/blackfin/kernel/traps.c
index 9556b73..9932ede 100644
--- a/arch/blackfin/kernel/traps.c
+++ b/arch/blackfin/kernel/traps.c
@@ -59,9 +59,10 @@
struct vm_list_struct *vml;
struct task_struct *p;
struct mm_struct *mm;
+ unsigned long offset;
#ifdef CONFIG_KALLSYMS
- unsigned long offset = 0, symsize;
+ unsigned long symsize;
const char *symname;
char *modname;
char *delim = ":";
@@ -106,12 +107,19 @@
sizeof(_tmpbuf));
}
+ /* FLAT does not have its text aligned to the start of
+ * the map while FDPIC ELF does ...
+ */
+ if (current->mm &&
+ (address > current->mm->start_code) &&
+ (address < current->mm->end_code))
+ offset = address - current->mm->start_code;
+ else
+ offset = (address - vma->vm_start) + (vma->vm_pgoff << PAGE_SHIFT);
+
write_unlock_irq(&tasklist_lock);
return printk("<0x%p> [ %s + 0x%lx ]",
- (void*)address, name,
- (unsigned long)
- ((address - vma->vm_start) +
- (vma->vm_pgoff << PAGE_SHIFT)));
+ (void*)address, name, offset);
}
vml = vml->next;