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authorIngo Molnar <mingo@elte.hu>2008-10-13 10:52:30 +0200
committerIngo Molnar <mingo@elte.hu>2008-10-13 10:52:30 +0200
commitc493756e2a8a78bcaae30668317890dcfe86e7c3 (patch)
tree8fb40782e79472ed882ff2098d4dd295557278ee /arch/x86/kernel/sigframe.h
parent0d15504f16f68725e4635aa85411015d1c573b0a (diff)
parent4480f15b3306f43bbb0310d461142b4e897ca45b (diff)
downloadblackbird-op-linux-c493756e2a8a78bcaae30668317890dcfe86e7c3.tar.gz
blackbird-op-linux-c493756e2a8a78bcaae30668317890dcfe86e7c3.zip
Merge branch 'linus' into oprofile
Conflicts: arch/x86/kernel/apic_32.c include/linux/pci_ids.h
Diffstat (limited to 'arch/x86/kernel/sigframe.h')
-rw-r--r--arch/x86/kernel/sigframe.h19
1 files changed, 17 insertions, 2 deletions
diff --git a/arch/x86/kernel/sigframe.h b/arch/x86/kernel/sigframe.h
index 72bbb519d2dc..cc673aa55ce4 100644
--- a/arch/x86/kernel/sigframe.h
+++ b/arch/x86/kernel/sigframe.h
@@ -3,9 +3,18 @@ struct sigframe {
char __user *pretcode;
int sig;
struct sigcontext sc;
- struct _fpstate fpstate;
+ /*
+ * fpstate is unused. fpstate is moved/allocated after
+ * retcode[] below. This movement allows to have the FP state and the
+ * future state extensions (xsave) stay together.
+ * And at the same time retaining the unused fpstate, prevents changing
+ * the offset of extramask[] in the sigframe and thus prevent any
+ * legacy application accessing/modifying it.
+ */
+ struct _fpstate fpstate_unused;
unsigned long extramask[_NSIG_WORDS-1];
char retcode[8];
+ /* fp state follows here */
};
struct rt_sigframe {
@@ -15,13 +24,19 @@ struct rt_sigframe {
void __user *puc;
struct siginfo info;
struct ucontext uc;
- struct _fpstate fpstate;
char retcode[8];
+ /* fp state follows here */
};
#else
struct rt_sigframe {
char __user *pretcode;
struct ucontext uc;
struct siginfo info;
+ /* fp state follows here */
};
+
+int ia32_setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
+ sigset_t *set, struct pt_regs *regs);
+int ia32_setup_frame(int sig, struct k_sigaction *ka,
+ sigset_t *set, struct pt_regs *regs);
#endif
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