summaryrefslogtreecommitdiffstats
path: root/arch/x86/include/asm/sigcontext32.h
diff options
context:
space:
mode:
authorAl Viro <viro@zeniv.linux.org.uk>2008-08-17 21:05:42 -0400
committerH. Peter Anvin <hpa@zytor.com>2008-10-22 22:55:20 -0700
commitbb8985586b7a906e116db835c64773b7a7d51663 (patch)
treede93ae58e88cc563d95cc124a73f3930594c6100 /arch/x86/include/asm/sigcontext32.h
parent8ede0bdb63305d3353efd97e9af6210afb05734e (diff)
x86, um: ... and asm-x86 move
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Diffstat (limited to 'arch/x86/include/asm/sigcontext32.h')
-rw-r--r--arch/x86/include/asm/sigcontext32.h75
1 files changed, 75 insertions, 0 deletions
diff --git a/arch/x86/include/asm/sigcontext32.h b/arch/x86/include/asm/sigcontext32.h
new file mode 100644
index 00000000000..8c347032c2f
--- /dev/null
+++ b/arch/x86/include/asm/sigcontext32.h
@@ -0,0 +1,75 @@
+#ifndef ASM_X86__SIGCONTEXT32_H
+#define ASM_X86__SIGCONTEXT32_H
+
+/* 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[44];
+ union {
+ __u32 padding2[12];
+ struct _fpx_sw_bytes sw_reserved;
+ };
+};
+
+struct sigcontext_ia32 {
+ unsigned short gs, __gsh;
+ unsigned short fs, __fsh;
+ unsigned short es, __esh;
+ unsigned short ds, __dsh;
+ unsigned int di;
+ unsigned int si;
+ unsigned int bp;
+ unsigned int sp;
+ unsigned int bx;
+ unsigned int dx;
+ unsigned int cx;
+ unsigned int ax;
+ unsigned int trapno;
+ unsigned int err;
+ unsigned int ip;
+ unsigned short cs, __csh;
+ unsigned int flags;
+ unsigned int sp_at_signal;
+ unsigned short ss, __ssh;
+ unsigned int fpstate; /* really (struct _fpstate_ia32 *) */
+ unsigned int oldmask;
+ unsigned int cr2;
+};
+
+#endif /* ASM_X86__SIGCONTEXT32_H */