osdep.h

   1 #ifndef QEMU_OSDEP_H
   2 #define QEMU_OSDEP_H
   3
   4 #include <stdarg.h>
   5
   6 int qemu_vsnprintf(char *buf, int buflen, const char *fmt, va_list args);
   7 void qemu_vprintf(const char *fmt, va_list ap);
   8 void qemu_printf(const char *fmt, ...);
   9
  10 void *qemu_malloc(size_t size);
  11 void *qemu_mallocz(size_t size);
  12 void qemu_free(void *ptr);
  13 char *qemu_strdup(const char *str);
  14
  15 void *get_mmap_addr(unsigned long size);
  16
  17 /* specific kludges for OS compatibility (should be moved elsewhere) */
  18 #if defined(__i386__) && !defined(CONFIG_SOFTMMU) && !defined(CONFIG_USER_ONLY)
  19
  20 /* disabled pthread version of longjmp which prevent us from using an
  21    alternative signal stack */
  22 extern void __longjmp(jmp_buf env, int val);
  23 #define longjmp __longjmp
  24
  25 #include <signal.h>
  26
  27 /* NOTE: it works only because the glibc sigset_t is >= kernel sigset_t */
  28 struct qemu_sigaction {
  29     union {
  30         void (*_sa_handler)(int);
  31         void (*_sa_sigaction)(int, struct siginfo *, void *);
  32     } _u;
  33     unsigned long sa_flags;
  34     void (*sa_restorer)(void);
  35     sigset_t sa_mask;           /* mask last for extensibility */
  36 };
  37
  38 int qemu_sigaction(int signum, const struct qemu_sigaction *act,
  39                    struct qemu_sigaction *oldact);
  40
  41 #undef sigaction
  42 #undef sa_handler
  43 #undef sa_sigaction
  44 #define sigaction qemu_sigaction
  45 #define sa_handler      _u._sa_handler
  46 #define sa_sigaction    _u._sa_sigaction
  47
  48 #endif
  49
  50 #endif