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-rw-r--r--include/asm-x86/sigcontext32.h71
1 files changed, 71 insertions, 0 deletions
diff --git a/include/asm-x86/sigcontext32.h b/include/asm-x86/sigcontext32.h
new file mode 100644
index 000000000000..3d657038ab7c
--- /dev/null
+++ b/include/asm-x86/sigcontext32.h
@@ -0,0 +1,71 @@
+#ifndef _SIGCONTEXT32_H
+#define _SIGCONTEXT32_H 1
+
+/* signal context for 32bit programs. */
+
+#define X86_FXSR_MAGIC 0x0000
+
+struct _fpreg {
+ unsigned short significand[4];
+ unsigned short exponent;
+};
+
+struct _fpxreg {
+ unsigned short significand[4];
+ unsigned short exponent;
+ unsigned short padding[3];
+};
+
+struct _xmmreg {
+ __u32 element[4];
+};
+
+/* FSAVE frame with extensions */
+struct _fpstate_ia32 {
+ /* Regular FPU environment */
+ __u32 cw;
+ __u32 sw;
+ __u32 tag; /* not compatible to 64bit twd */
+ __u32 ipoff;
+ __u32 cssel;
+ __u32 dataoff;
+ __u32 datasel;
+ struct _fpreg _st[8];
+ unsigned short status;
+ unsigned short magic; /* 0xffff = regular FPU data only */
+
+ /* FXSR FPU environment */
+ __u32 _fxsr_env[6];
+ __u32 mxcsr;
+ __u32 reserved;
+ struct _fpxreg _fxsr_st[8];
+ struct _xmmreg _xmm[8]; /* It's actually 16 */
+ __u32 padding[56];
+};
+
+struct sigcontext_ia32 {
+ unsigned short gs, __gsh;
+ unsigned short fs, __fsh;
+ unsigned short es, __esh;
+ unsigned short ds, __dsh;
+ unsigned int edi;
+ unsigned int esi;
+ unsigned int ebp;
+ unsigned int esp;
+ unsigned int ebx;
+ unsigned int edx;
+ unsigned int ecx;
+ unsigned int eax;
+ unsigned int trapno;
+ unsigned int err;
+ unsigned int eip;
+ unsigned short cs, __csh;
+ unsigned int eflags;
+ unsigned int esp_at_signal;
+ unsigned short ss, __ssh;
+ unsigned int fpstate; /* really (struct _fpstate_ia32 *) */
+ unsigned int oldmask;
+ unsigned int cr2;
+};
+
+#endif
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