diff options
| author | Akinobu Mita <akinobu.mita@gmail.com> | 2009-07-19 00:11:06 +0900 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-07-19 18:27:52 +0200 |
| commit | 57594742a2b545f8f114cda34f15650be8ae976d (patch) | |
| tree | 2682b10d68f3fb33aa047fa2a3ff6db2061c0740 /arch/x86/include/asm/stackprotector.h | |
| parent | fde0312d01b60a3fd5dc56e69a9613defbbc7097 (diff) | |
x86: Introduce set_desc_base() and set_desc_limit()
Rename set_base()/set_limit to set_desc_base()/set_desc_limit()
and rewrite them in C. These are naturally introduced by the
idea of get_desc_base()/get_desc_limit().
The conversion actually found the bug in apm_32.c:
bad_bios_desc is written at run-time, but it is defined const
variable.
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
LKML-Reference: <20090718151105.GC11294@localhost.localdomain>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/include/asm/stackprotector.h')
| -rw-r--r-- | arch/x86/include/asm/stackprotector.h | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/arch/x86/include/asm/stackprotector.h b/arch/x86/include/asm/stackprotector.h index c2d742c6e15f..cdc5e0b126a7 100644 --- a/arch/x86/include/asm/stackprotector.h +++ b/arch/x86/include/asm/stackprotector.h @@ -90,9 +90,7 @@ static inline void setup_stack_canary_segment(int cpu) struct desc_struct desc; desc = gdt_table[GDT_ENTRY_STACK_CANARY]; - desc.base0 = canary & 0xffff; - desc.base1 = (canary >> 16) & 0xff; - desc.base2 = (canary >> 24) & 0xff; + set_desc_base(&desc, canary); write_gdt_entry(gdt_table, GDT_ENTRY_STACK_CANARY, &desc, DESCTYPE_S); #endif } |