2 * Copyright (C) 2000, 2001, 2002 Jeff Dike (jdike@karaya.com)
3 * Licensed under the GPL
13 #include <sys/utsname.h>
14 #include <sys/param.h>
16 #include "asm/types.h"
25 #include "user_util.h"
26 #include "kern_util.h"
30 #include "ptrace_user.h"
31 #include "uml-config.h"
35 void stack_protections(unsigned long address)
37 int prot = PROT_READ | PROT_WRITE | PROT_EXEC;
39 if(mprotect((void *) address, page_size(), prot) < 0)
40 panic("protecting stack failed, errno = %d", errno);
43 void task_protections(unsigned long address)
45 unsigned long guard = address + page_size();
46 unsigned long stack = guard + page_size();
50 if(mprotect((void *) stack, page_size(), prot) < 0)
51 panic("protecting guard page failed, errno = %d", errno);
53 pages = (1 << UML_CONFIG_KERNEL_STACK_ORDER) - 2;
54 prot = PROT_READ | PROT_WRITE | PROT_EXEC;
55 if(mprotect((void *) stack, pages * page_size(), prot) < 0)
56 panic("protecting stack failed, errno = %d", errno);
64 CATCH_EINTR(err = tcgetattr(fd, &tt));
70 CATCH_EINTR(err = tcsetattr(fd, TCSADRAIN, &tt));
74 /* XXX tcsetattr could have applied only some changes
75 * (and cfmakeraw() is a set of changes) */
79 void setup_machinename(char *machine_out)
84 #if defined(UML_CONFIG_UML_X86) && !defined(UML_CONFIG_64BIT)
85 if (!strcmp(host.machine, "x86_64")) {
86 strcpy(machine_out, "i686");
90 strcpy(machine_out, host.machine);
93 char host_info[(_UTSNAME_LENGTH + 1) * 4 + _UTSNAME_NODENAME_LENGTH + 1];
95 void setup_hostinfo(void)
100 sprintf(host_info, "%s %s %s %s %s", host.sysname, host.nodename,
101 host.release, host.version, host.machine);
104 int setjmp_wrapper(void (*proc)(void *, void *), ...)
110 n = sigsetjmp(buf, 1);
112 va_start(args, proc);
113 (*proc)(&buf, &args);