7eebe8a9c5
This patch cleans up the umid code: - The only_if_set argument to get_umid is gone. - get_umid returns an empty string rather than NULL if there is no umid. - umid_is_random is gone since its users went away. - Some printfs were turned into printks because the code runs late enough that printk is working. - Error paths were cleaned up. - Some functions now return an error and let the caller print the error message rather than printing it themselves. This eliminates the practice of passing a pointer to printf or printk in, depending on where in the boot process we are. - Major tidying of not_dead_yet - mostly error path cleanup, plus a comment explaining why it doesn't react to errors the way you might expect. - Calls to os_* interfaces that were moved under os are changed back to their native libc forms. - snprintf, strlcpy, and their bounds-checking friends are used more often, replacing by-hand bounds checking in some places. Signed-off-by: Jeff Dike <jdike@addtoit.com> Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
94 lines
2.7 KiB
C
94 lines
2.7 KiB
C
/*
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* Copyright (C) 2000, 2001, 2002 Jeff Dike (jdike@karaya.com)
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* Licensed under the GPL
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*/
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#ifndef __USER_UTIL_H__
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#define __USER_UTIL_H__
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#include "sysdep/ptrace.h"
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#define CATCH_EINTR(expr) while ((errno = 0, ((expr) < 0)) && (errno == EINTR))
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extern int mode_tt;
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extern int grantpt(int __fd);
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extern int unlockpt(int __fd);
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extern char *ptsname(int __fd);
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struct cpu_task {
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int pid;
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void *task;
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};
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extern struct cpu_task cpu_tasks[];
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struct signal_info {
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void (*handler)(int, union uml_pt_regs *);
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int is_irq;
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};
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extern struct signal_info sig_info[];
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extern unsigned long low_physmem;
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extern unsigned long high_physmem;
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extern unsigned long uml_physmem;
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extern unsigned long uml_reserved;
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extern unsigned long end_vm;
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extern unsigned long start_vm;
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extern unsigned long highmem;
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extern char host_info[];
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extern char saved_command_line[];
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extern unsigned long _stext, _etext, _sdata, _edata, __bss_start, _end;
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extern unsigned long _unprotected_end;
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extern unsigned long brk_start;
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extern int pty_output_sigio;
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extern int pty_close_sigio;
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extern void stop(void);
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extern void stack_protections(unsigned long address);
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extern void task_protections(unsigned long address);
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extern int wait_for_stop(int pid, int sig, int cont_type, void *relay);
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extern void *add_signal_handler(int sig, void (*handler)(int));
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extern int linux_main(int argc, char **argv);
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extern void set_cmdline(char *cmd);
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extern void input_cb(void (*proc)(void *), void *arg, int arg_len);
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extern int get_pty(void);
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extern void *um_kmalloc(int size);
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extern int switcheroo(int fd, int prot, void *from, void *to, int size);
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extern void setup_machinename(char *machine_out);
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extern void setup_hostinfo(void);
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extern void do_exec(int old_pid, int new_pid);
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extern void tracer_panic(char *msg, ...);
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extern void do_longjmp(void *p, int val);
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extern int detach(int pid, int sig);
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extern int attach(int pid);
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extern void kill_child_dead(int pid);
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extern int cont(int pid);
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extern void check_sigio(void);
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extern void write_sigio_workaround(void);
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extern void arch_check_bugs(void);
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extern int cpu_feature(char *what, char *buf, int len);
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extern int arch_handle_signal(int sig, union uml_pt_regs *regs);
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extern int arch_fixup(unsigned long address, void *sc_ptr);
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extern void arch_init_thread(void);
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extern int setjmp_wrapper(void (*proc)(void *, void *), ...);
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extern int raw(int fd);
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#endif
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/*
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* Overrides for Emacs so that we follow Linus's tabbing style.
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* Emacs will notice this stuff at the end of the file and automatically
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* adjust the settings for this buffer only. This must remain at the end
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* of the file.
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* ---------------------------------------------------------------------------
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* Local variables:
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* c-file-style: "linux"
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* End:
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*/
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