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author | Ingo Molnar <mingo@elte.hu> | 2008-10-13 10:52:30 +0200 |
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committer | Ingo Molnar <mingo@elte.hu> | 2008-10-13 10:52:30 +0200 |
commit | c493756e2a8a78bcaae30668317890dcfe86e7c3 (patch) | |
tree | 8fb40782e79472ed882ff2098d4dd295557278ee /arch/x86/kernel/sigframe.h | |
parent | 0d15504f16f68725e4635aa85411015d1c573b0a (diff) | |
parent | 4480f15b3306f43bbb0310d461142b4e897ca45b (diff) | |
download | blackbird-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.h | 19 |
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 |