arch/all-unix/kernel/kernel_intern.h

   1 #include <sys/time.h>
   2 #include <sys/types.h>
   3 #include <signal.h>
   4
   5 /* Android is not a true Linux ;-) */
   6 #ifdef HOST_OS_android
   7 #undef HOST_OS_linux
   8 #endif
   9
  10 #ifdef HOST_OS_linux
  11 #define LIBC_NAME "libc.so.6"
  12 #endif
  13
  14 #ifdef HOST_OS_darwin
  15 #define LIBC_NAME "libSystem.dylib"
  16 #endif
  17
  18 #ifndef LIBC_NAME
  19 #define LIBC_NAME "libc.so"
  20 #endif
  21
  22 /*
  23  * On Darwin sigset manipulation functions are redefined as macros, so they are slightly renamed here.
  24  * However they still present in libc as normal functions.
  25  */
  26 struct KernelInterface
  27 {
  28     int     (*raise)(int sig);
  29     int     (*sigprocmask)(int how, const sigset_t *set, sigset_t *oldset);
  30     int     (*sigsuspend)(const sigset_t *mask);
  31     int     (*sigaction)(int signum, const struct sigaction *act, struct sigaction *oldact);
  32     int     (*mprotect)(const void *addr, size_t len, int prot);
  33     ssize_t (*read)(int fd, void *buf, size_t count);
  34     int     (*fcntl)(int fd, int cmd, ...);
  35     void *  (*mmap)(void *addr, size_t length, int prot, int flags, int fd, off_t offset);
  36     int     (*munmap)(void *addr, size_t length);
  37     int    *(*__error)(void);
  38 #ifdef HOST_OS_android
  39     int     (*sigwait)(const sigset_t *restrict set, int *restrict sig);
  40 #else
  41     int     (*SigEmptySet)(sigset_t *set);
  42     int     (*SigFillSet)(sigset_t *set);
  43     int     (*SigAddSet)(sigset_t *set, int signum);
  44     int     (*SigDelSet)(sigset_t *set, int signum);
  45 #endif
  46 };
  47
  48 /*
  49  * Android's Bionic doesn't have these functions.
  50  * They are simply inlined in headers.
  51  */
  52 #ifdef HOST_OS_android
  53 #define SIGEMPTYSET sigemptyset
  54 #define SIGFILLSET  sigfillset
  55 #define SIGADDSET   sigaddset
  56 #define SIGDELSET   sigdelset
  57 #else
  58 #define SIGEMPTYSET(x)   pd->iface->SigEmptySet(x); AROS_HOST_BARRIER
  59 #define SIGFILLSET(x)    pd->iface->SigFillSet(x); AROS_HOST_BARRIER
  60 #define SIGADDSET(x,s)   pd->iface->SigAddSet(x,s); AROS_HOST_BARRIER
  61 #define SIGDELSET(x,s)   pd->iface->SigDelSet(x,s); AROS_HOST_BARRIER
  62 #endif
  63
  64 struct PlatformData
  65 {
  66     sigset_t                sig_int_mask;   /* Mask of signals that Disable() block */
  67     int                    *errnoPtr;
  68     struct KernelInterface *iface;
  69 };
  70
  71 struct SignalTranslation
  72 {
  73     short sig;
  74     short AmigaTrap;
  75     short CPUTrap;
  76 };
  77
  78 extern struct SignalTranslation const sigs[];
  79
  80 void cpu_DispatchContext(struct Task *task, regs_t *regs, struct PlatformData *pdata);