aboutsummaryrefslogtreecommitdiff
path: root/include/asm-i386
diff options
context:
space:
mode:
authorJeremy Fitzhardinge <jeremy@goop.org>2006-12-07 02:14:02 +0100
committerAndi Kleen <andi@basil.nowhere.org>2006-12-07 02:14:02 +0100
commit66e10a44d724f1464b5e8b5a3eae1e2cbbc2cca6 (patch)
tree0d2a1a1d5edaf98506ef7cb271cad62f5644268e /include/asm-i386
parentf95d47caae5302a63d92be9a0292abc90e2a14e1 (diff)
[PATCH] i386: Fix places where using %gs changes the usermode ABI
There are a few places where the change in struct pt_regs and the use of %gs affect the userspace ABI. These are primarily debugging interfaces where thread state can be inspected or extracted. Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com> Signed-off-by: Andi Kleen <ak@suse.de> Cc: Chuck Ebbert <76306.1226@compuserve.com> Cc: Zachary Amsden <zach@vmware.com> Cc: Jan Beulich <jbeulich@novell.com> Cc: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org>
Diffstat (limited to 'include/asm-i386')
-rw-r--r--include/asm-i386/elf.h2
-rw-r--r--include/asm-i386/unwind.h1
2 files changed, 2 insertions, 1 deletions
diff --git a/include/asm-i386/elf.h b/include/asm-i386/elf.h
index 3a05436f31c..45d21a0c95b 100644
--- a/include/asm-i386/elf.h
+++ b/include/asm-i386/elf.h
@@ -91,7 +91,7 @@ typedef struct user_fxsr_struct elf_fpxregset_t;
pr_reg[7] = regs->xds; \
pr_reg[8] = regs->xes; \
savesegment(fs,pr_reg[9]); \
- savesegment(gs,pr_reg[10]); \
+ pr_reg[10] = regs->xgs; \
pr_reg[11] = regs->orig_eax; \
pr_reg[12] = regs->eip; \
pr_reg[13] = regs->xcs; \
diff --git a/include/asm-i386/unwind.h b/include/asm-i386/unwind.h
index 5031d693b89..601fc67bd77 100644
--- a/include/asm-i386/unwind.h
+++ b/include/asm-i386/unwind.h
@@ -71,6 +71,7 @@ static inline void arch_unw_init_blocked(struct unwind_frame_info *info)
info->regs.xss = __KERNEL_DS;
info->regs.xds = __USER_DS;
info->regs.xes = __USER_DS;
+ info->regs.xgs = __KERNEL_PDA;
}
extern asmlinkage int arch_unwind_init_running(struct unwind_frame_info *,