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git.proxmox.com Git - mirror_ubuntu-bionic-kernel.git/blob - arch/um/include/sysdep-i386/sigcontext.h
a930ce3d48318d0c008b499a473052c986c89f01
2 * Copyright (C) 2000, 2001, 2002 Jeff Dike (jdike@karaya.com)
3 * Licensed under the GPL
6 #ifndef __SYS_SIGCONTEXT_I386_H
7 #define __SYS_SIGCONTEXT_I386_H
9 #include "uml-config.h"
11 #include "sysdep/sc.h"
13 #define IP_RESTART_SYSCALL(ip) ((ip) -= 2)
15 #define SC_RESTART_SYSCALL(sc) IP_RESTART_SYSCALL(SC_IP(sc))
16 #define SC_SET_SYSCALL_RETURN(sc, result) SC_EAX(sc) = (result)
18 #define GET_FAULTINFO_FROM_SC(fi,sc) \
20 (fi).cr2 = SC_CR2(sc); \
21 (fi).error_code = SC_ERR(sc); \
22 (fi).trap_no = SC_TRAPNO(sc); \
25 /* ptrace expects that, at the start of a system call, %eax contains
26 * -ENOSYS, so this makes it so.
28 #define SC_START_SYSCALL(sc) do SC_EAX(sc) = -ENOSYS; while(0)
30 /* This is Page Fault */
31 #define SEGV_IS_FIXABLE(fi) ((fi)->trap_no == 14)
33 /* SKAS3 has no trap_no on i386, but get_skas_faultinfo() sets it to 0. */
34 #define SEGV_MAYBE_FIXABLE(fi) ((fi)->trap_no == 0 && ptrace_faultinfo)
36 extern unsigned long *sc_sigmask(void *sc_ptr
);
37 extern int sc_get_fpregs(unsigned long buf
, void *sc_ptr
);
41 * Overrides for Emacs so that we follow Linus's tabbing style.
42 * Emacs will notice this stuff at the end of the file and automatically
43 * adjust the settings for this buffer only. This must remain at the end
45 * ---------------------------------------------------------------------------
47 * c-file-style: "linux"