original_kernel/arch/um
Paolo 'Blaisorblade' Giarrusso 4f0272415a [PATCH] uml: fix syscall stubs
Jeff Dike noted that the assembly code for syscall stubs is misassembled with
GCC 3.2.3: the values copied in registers weren't preserved between one asm()
and the following one.

So I fixed the thing by rewriting the __asm__ constraints more like unistd.h
ones.

Note: in syscall6 case I had to add one more instruction (i.e.  moving arg6 in
eax and shuffling things around) - it's needed for the function to be valid in
general (we can't load the value from the stack, relative to ebp, because we
change it), but could be avoided since we actually use a constant as param 6.

The only fix would be to turn stub_syscall6 to a macro and use a "i"
constraint for arg6 (i.e., specify it's a constant value).

Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-11-07 07:53:30 -08:00
..
drivers Create platform_device.h to contain all the platform device details. 2005-10-29 19:07:23 +01:00
include [PATCH] uml: fix syscall stubs 2005-11-07 07:53:30 -08:00
kernel [PATCH] uml: improve stub debugging 2005-11-07 07:53:30 -08:00
os-Linux [PATCH] uml: revert block driver use of host AIO 2005-10-12 08:22:26 -07:00
scripts [PATCH] uml: allow building .s/.i/.lst files from userspace files 2005-10-10 08:36:00 -07:00
sys-i386 [PATCH] uml: Fix sysrq-r support for skas mode 2005-10-04 13:22:01 -07:00
sys-ia64
sys-ppc
sys-x86_64 [PATCH] uml: fix x86_64 with !CONFIG_FRAME_POINTER 2005-10-10 08:37:59 -07:00
Kconfig [PATCH] uml: fix "reuse i386 cpu optimizations" 2005-10-30 17:37:16 -08:00
Kconfig.char
Kconfig.debug
Kconfig.i386
Kconfig.net
Kconfig.scsi
Kconfig.x86_64 [PATCH] uml: fix "reuse i386 cpu optimizations" 2005-10-30 17:37:16 -08:00
Makefile [PATCH] Uml: hide commands when not being verbose 2005-10-10 08:36:00 -07:00
Makefile-i386 [PATCH] uml: remove old UM_FASTCALL, and make the thing work again 2005-10-30 17:37:16 -08:00
Makefile-ia64
Makefile-os-Linux
Makefile-ppc
Makefile-skas
Makefile-tt
Makefile-x86_64
config.release
defconfig