Re: [PATCH 01/11] x86: include correct %gs in a.out core dump

From: Jeremy Fitzhardinge
Date: Mon Feb 09 2009 - 12:13:02 EST


Tejun Heo wrote:
Impact: dump the correct %gs into a.out core dump

aout_dump_thread() read %gs but didn't include it in core dump. Fix
it.

Signed-off-by: Tejun Heo <tj@xxxxxxxxxx>
---
arch/x86/include/asm/a.out-core.h | 4 +---
1 files changed, 1 insertions(+), 3 deletions(-)

diff --git a/arch/x86/include/asm/a.out-core.h b/arch/x86/include/asm/a.out-core.h
index 3782220..3c601f8 100644
--- a/arch/x86/include/asm/a.out-core.h
+++ b/arch/x86/include/asm/a.out-core.h
@@ -23,8 +23,6 @@
*/
static inline void aout_dump_thread(struct pt_regs *regs, struct user *dump)
{
- u16 gs;
-
/* changed the size calculations - should hopefully work better. lbt */
dump->magic = CMAGIC;
dump->start_code = 0;
@@ -57,7 +55,7 @@ static inline void aout_dump_thread(struct pt_regs *regs, struct user *dump)
dump->regs.ds = (u16)regs->ds;
dump->regs.es = (u16)regs->es;
dump->regs.fs = (u16)regs->fs;
- savesegment(gs, gs);
+ savesegment(gs, dump->regs.gs);
Yes, that looks like a bit of mindless auto-conversion.

Acked-by: Jeremy Fitzhardinge <jeremy@xxxxxxxx>

J
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