2 * Copyright (C) 2000, 2001, 2002 Jeff Dike (jdike@karaya.com)
3 * Licensed under the GPL
13 #include <asm/unistd.h>
14 #include <asm/ptrace.h>
16 #include "sysdep/ptrace.h"
17 #include "sigcontext.h"
18 #include "sysdep/sigcontext.h"
20 #include "signal_user.h"
21 #include "time_user.h"
24 #include "choose-mode.h"
25 #include "kern_util.h"
26 #include "user_util.h"
29 void kill_child_dead(int pid)
35 CATCH_EINTR(n = waitpid(pid, NULL, 0));
43 /* Unlocked - don't care if this is a bit off */
47 unsigned long address;
52 } segfault_record[1024];
54 void segv_handler(int sig, union uml_pt_regs *regs)
57 struct faultinfo * fi = UPT_FAULTINFO(regs);
59 if(UPT_IS_USER(regs) && !SEGV_IS_FIXABLE(fi)){
60 bad_segv(*fi, UPT_IP(regs));
63 max = sizeof(segfault_record)/sizeof(segfault_record[0]);
64 index = next_trap_index(max);
67 segfault_record[index].address = FAULT_ADDRESS(*fi);
68 segfault_record[index].pid = os_getpid();
69 segfault_record[index].is_write = FAULT_WRITE(*fi);
70 segfault_record[index].sp = UPT_SP(regs);
71 segfault_record[index].is_user = UPT_IS_USER(regs);
72 segv(*fi, UPT_IP(regs), UPT_IS_USER(regs), regs);
75 void usr2_handler(int sig, union uml_pt_regs *regs)
77 CHOOSE_MODE(syscall_handler_tt(sig, regs), (void) 0);
80 struct signal_info sig_info[] = {
81 [ SIGTRAP ] { .handler = relay_signal,
83 [ SIGFPE ] { .handler = relay_signal,
85 [ SIGILL ] { .handler = relay_signal,
87 [ SIGWINCH ] { .handler = winch,
89 [ SIGBUS ] { .handler = bus_handler,
91 [ SIGSEGV] { .handler = segv_handler,
93 [ SIGIO ] { .handler = sigio_handler,
95 [ SIGVTALRM ] { .handler = timer_handler,
97 [ SIGALRM ] { .handler = timer_handler,
99 [ SIGUSR2 ] { .handler = usr2_handler,
103 void do_longjmp(void *b, int val)
107 siglongjmp(*buf, val);
111 * Overrides for Emacs so that we follow Linus's tabbing style.
112 * Emacs will notice this stuff at the end of the file and automatically
113 * adjust the settings for this buffer only. This must remain at the end
115 * ---------------------------------------------------------------------------
117 * c-file-style: "linux"