/* * Copyright (C) 2002 Jeff Dike (jdike@karaya.com) * Licensed under the GPL */ #include <stdlib.h> #include <errno.h> #include <signal.h> #include <asm/sigcontext.h> #include "sysdep/ptrace.h" #include "signal_user.h" #include "user_util.h" #include "kern_util.h" #include "task.h" #include "tt.h" void sig_handler_common_tt(int sig, struct sigcontext *sc) { struct uml_pt_regs save_regs, *r; struct signal_info *info; int save_errno = errno, is_user; unprotect_kernel_mem(); r = (struct uml_pt_regs *) TASK_REGS(get_current()); save_regs = *r; is_user = user_context(SC_SP(sc)); r->is_user = is_user; r->mode.tt = sc; if(sig != SIGUSR2) r->syscall = -1; change_sig(SIGUSR1, 1); info = &sig_info[sig]; if(!info->is_irq) unblock_signals(); (*info->handler)(sig, r); if(is_user){ interrupt_end(); block_signals(); change_sig(SIGUSR1, 0); set_user_mode(NULL); } *r = save_regs; errno = save_errno; if(is_user) protect_kernel_mem(); } /* * 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: */