diff options
Diffstat (limited to 'arch/um/include/sysdep-i386/sigcontext.h')
-rw-r--r-- | arch/um/include/sysdep-i386/sigcontext.h | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/arch/um/include/sysdep-i386/sigcontext.h b/arch/um/include/sysdep-i386/sigcontext.h new file mode 100644 index 0000000..dfee589 --- /dev/null +++ b/arch/um/include/sysdep-i386/sigcontext.h @@ -0,0 +1,49 @@ +/* + * Copyright (C) 2000, 2001, 2002 Jeff Dike (jdike@karaya.com) + * Licensed under the GPL + */ + +#ifndef __SYS_SIGCONTEXT_I386_H +#define __SYS_SIGCONTEXT_I386_H + +#include <sysdep/sc.h> + +#define IP_RESTART_SYSCALL(ip) ((ip) -= 2) + +#define SC_RESTART_SYSCALL(sc) IP_RESTART_SYSCALL(SC_IP(sc)) +#define SC_SET_SYSCALL_RETURN(sc, result) SC_EAX(sc) = (result) + +#define SC_FAULT_ADDR(sc) SC_CR2(sc) +#define SC_FAULT_TYPE(sc) SC_ERR(sc) + +#define FAULT_WRITE(err) (err & 2) +#define TO_SC_ERR(is_write) ((is_write) ? 2 : 0) + +#define SC_FAULT_WRITE(sc) (FAULT_WRITE(SC_ERR(sc))) + +#define SC_TRAP_TYPE(sc) SC_TRAPNO(sc) + +/* ptrace expects that, at the start of a system call, %eax contains + * -ENOSYS, so this makes it so. + */ +#define SC_START_SYSCALL(sc) do SC_EAX(sc) = -ENOSYS; while(0) + +/* This is Page Fault */ +#define SEGV_IS_FIXABLE(trap) (trap == 14) + +#define SC_SEGV_IS_FIXABLE(sc) (SEGV_IS_FIXABLE(SC_TRAPNO(sc))) + +extern unsigned long *sc_sigmask(void *sc_ptr); +extern int sc_get_fpregs(unsigned long buf, void *sc_ptr); + +#endif +/* + * Overrides for Emacs so that we follow Linus's tabbing style. + * Emacs will notice this stuff at the end of the file and automatically + * adjust the settings for this buffer only. This must remain at the end + * of the file. + * --------------------------------------------------------------------------- + * Local variables: + * c-file-style: "linux" + * End: + */ |