diff options
| author | Roland McGrath <roland@redhat.com> | 2008-04-10 15:38:45 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-04-10 17:28:26 -0700 |
| commit | 598af051a79d05b751fe793f1fe09fcf74763e02 (patch) | |
| tree | c9adafd96ee316c3d05f2978697d3624547f9e84 /arch/ppc/Kconfig.debug | |
| parent | 54a015104136974262afa4b8ddd943ea70dec8a2 (diff) | |
asmlinkage_protect sys_io_getevents
Use asmlinkage_protect in sys_io_getevents, because GCC for i386 with
CONFIG_FRAME_POINTER=n can decide to clobber an argument word on the
stack, i.e. the user struct pt_regs. Here the problem is not a tail
call, but just the compiler's use of the stack when it inlines and
optimizes the body of the called function. This seems to avoid it.
Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/ppc/Kconfig.debug')
0 files changed, 0 insertions, 0 deletions