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x86: signal: rename sigframe and rt_sigframe on 32-bit

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Impact: cleanup, prepare to move sigframe.h

On 32-bit, rename struct sigrame to struct sigframe_ia32, struct rt_sigframe
to struct rt_sigframe_ia32 and several structures.

And add helper macros to access the above data in arch/x86/kernel/signal.c.

Signed-off-by: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Hiroshi Shimamoto
2008-12-17 18:49:55 -08:00
committed by Ingo Molnar
parent f5223763a6
commit a5c56eb36f
1 changed files with 17 additions and 11 deletions
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28
arch/x86/kernel/sigframe.h
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@@ -1,8 +1,14 @@
#ifdef CONFIG_X86_32 #ifdef CONFIG_X86_32
struct sigframe { #define sigframe_ia32 sigframe
char __user *pretcode; #define rt_sigframe_ia32 rt_sigframe
#define sigcontext_ia32 sigcontext
#define _fpstate_ia32 _fpstate
#define ucontext_ia32 ucontext
struct sigframe_ia32 {
u32 pretcode;
int sig; int sig;
struct sigcontext sc; struct sigcontext_ia32 sc;
/* /*
* fpstate is unused. fpstate is moved/allocated after * fpstate is unused. fpstate is moved/allocated after
* retcode[] below. This movement allows to have the FP state and the * retcode[] below. This movement allows to have the FP state and the
@@ -11,27 +17,27 @@ struct sigframe {
* the offset of extramask[] in the sigframe and thus prevent any * the offset of extramask[] in the sigframe and thus prevent any
* legacy application accessing/modifying it. * legacy application accessing/modifying it.
*/ */
struct _fpstate fpstate_unused; struct _fpstate_ia32 fpstate_unused;
unsigned long extramask[_NSIG_WORDS-1]; unsigned long extramask[_NSIG_WORDS-1];
char retcode[8]; char retcode[8];
/* fp state follows here */ /* fp state follows here */
}; };
struct rt_sigframe { struct rt_sigframe_ia32 {
char __user *pretcode; u32 pretcode;
int sig; int sig;
struct siginfo __user *pinfo; u32 pinfo;
void __user *puc; u32 puc;
struct siginfo info; struct siginfo info;
struct ucontext uc; struct ucontext_ia32 uc;
char retcode[8]; char retcode[8];
/* fp state follows here */ /* fp state follows here */
}; };
#else #else /* !CONFIG_X86_32 */
struct rt_sigframe { struct rt_sigframe {
char __user *pretcode; char __user *pretcode;
struct ucontext uc; struct ucontext uc;
struct siginfo info; struct siginfo info;
/* fp state follows here */ /* fp state follows here */
}; };
#endif #endif /* CONFIG_X86_32 */