diff options
| author | Stephen Rothwell <sfr@canb.auug.org.au> | 2021-11-08 18:32:43 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2021-11-09 10:02:49 -0800 |
| commit | e52340de11d8bca3ba35e5a72fea4f2a5b6abbbb (patch) | |
| tree | 0d89b9a5d69dadeaab969ebfc0f888236d898a60 /include/linux/instruction_pointer.h | |
| parent | b4b87651104dd32ab258d097d47b97e243a95222 (diff) | |
kernel.h: split out instruction pointer accessors
bottom_half.h needs _THIS_IP_ to be standalone, so split that and
_RET_IP_ out from kernel.h into the new instruction_pointer.h. kernel.h
directly needs them, so include it there and replace the include of
kernel.h with this new file in bottom_half.h.
Link: https://lkml.kernel.org/r/20211028161248.45232-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/instruction_pointer.h')
| -rw-r--r-- | include/linux/instruction_pointer.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/instruction_pointer.h b/include/linux/instruction_pointer.h new file mode 100644 index 000000000000..cda1f706eaeb --- /dev/null +++ b/include/linux/instruction_pointer.h @@ -0,0 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _LINUX_INSTRUCTION_POINTER_H +#define _LINUX_INSTRUCTION_POINTER_H + +#define _RET_IP_ (unsigned long)__builtin_return_address(0) +#define _THIS_IP_ ({ __label__ __here; __here: (unsigned long)&&__here; }) + +#endif /* _LINUX_INSTRUCTION_POINTER_H */ |