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Diffstat (limited to 'arch/x86/ia32')
-rw-r--r--arch/x86/ia32/ptrace32.c16
1 files changed, 16 insertions, 0 deletions
diff --git a/arch/x86/ia32/ptrace32.c b/arch/x86/ia32/ptrace32.c
index c52d0664c67..d5663e29533 100644
--- a/arch/x86/ia32/ptrace32.c
+++ b/arch/x86/ia32/ptrace32.c
@@ -48,19 +48,27 @@ static int putreg32(struct task_struct *child, unsigned regno, u32 val)
if (val && (val & 3) != 3)
return -EIO;
child->thread.fsindex = val & 0xffff;
+ if (child == current)
+ loadsegment(fs, child->thread.fsindex);
break;
case offsetof(struct user32, regs.gs):
if (val && (val & 3) != 3)
return -EIO;
child->thread.gsindex = val & 0xffff;
+ if (child == current)
+ load_gs_index(child->thread.gsindex);
break;
case offsetof(struct user32, regs.ds):
if (val && (val & 3) != 3)
return -EIO;
child->thread.ds = val & 0xffff;
+ if (child == current)
+ loadsegment(ds, child->thread.ds);
break;
case offsetof(struct user32, regs.es):
child->thread.es = val & 0xffff;
+ if (child == current)
+ loadsegment(es, child->thread.ds);
break;
case offsetof(struct user32, regs.ss):
if ((val & 3) != 3)
@@ -129,15 +137,23 @@ static int getreg32(struct task_struct *child, unsigned regno, u32 *val)
switch (regno) {
case offsetof(struct user32, regs.fs):
*val = child->thread.fsindex;
+ if (child == current)
+ asm("movl %%fs,%0" : "=r" (*val));
break;
case offsetof(struct user32, regs.gs):
*val = child->thread.gsindex;
+ if (child == current)
+ asm("movl %%gs,%0" : "=r" (*val));
break;
case offsetof(struct user32, regs.ds):
*val = child->thread.ds;
+ if (child == current)
+ asm("movl %%ds,%0" : "=r" (*val));
break;
case offsetof(struct user32, regs.es):
*val = child->thread.es;
+ if (child == current)
+ asm("movl %%es,%0" : "=r" (*val));
break;
R32(cs, cs);