diff options
Diffstat (limited to 'arch/x86/kernel/step.c')
| -rw-r--r-- | arch/x86/kernel/step.c | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/arch/x86/kernel/step.c b/arch/x86/kernel/step.c index e8b9863ef8c..3149032ff10 100644 --- a/arch/x86/kernel/step.c +++ b/arch/x86/kernel/step.c @@ -4,6 +4,7 @@ #include <linux/sched.h> #include <linux/mm.h> #include <linux/ptrace.h> +#include <asm/desc.h> unsigned long convert_ip_to_linear(struct task_struct *child, struct pt_regs *regs) { @@ -23,7 +24,7 @@ unsigned long convert_ip_to_linear(struct task_struct *child, struct pt_regs *re * and APM bios ones we just ignore here. */ if ((seg & SEGMENT_TI_MASK) == SEGMENT_LDT) { - u32 *desc; + struct desc_struct *desc; unsigned long base; seg &= ~7UL; @@ -33,12 +34,10 @@ unsigned long convert_ip_to_linear(struct task_struct *child, struct pt_regs *re addr = -1L; /* bogus selector, access would fault */ else { desc = child->mm->context.ldt + seg; - base = ((desc[0] >> 16) | - ((desc[1] & 0xff) << 16) | - (desc[1] & 0xff000000)); + base = get_desc_base(desc); /* 16-bit code segment? */ - if (!((desc[1] >> 22) & 1)) + if (!desc->d) addr &= 0xffff; addr += base; } |