runtime/platform/darwin.c

   1 #include "platform.h"
   2
   3 #include <dlfcn.h>
   4 #include <stdio.h>
   5
   6 #include "diskBack.unix.c"
   7 #include "mmap-protect.c"
   8 #include "nonwin.c"
   9 #include "sysctl.c"
  10 #include "use-mmap.c"
  11
  12 void GC_displayMem (void) {
  13         static char buffer[256];
  14
  15         snprintf (buffer, cardof(buffer), "/usr/bin/vmmap -w -interleaved %d\n", (int)getpid ());
  16         (void)system (buffer);
  17 }
  18
  19 static void catcher (__attribute__ ((unused)) int signo,
  20                      __attribute__ ((unused)) siginfo_t* info,
  21                      void* context) {
  22         ucontext_t* ucp = (ucontext_t*)context;
  23 #if (defined(__powerpc__) || defined(__ppc__))
  24 #if __DARWIN_UNIX03
  25         GC_handleSigProf ((code_pointer) ucp->uc_mcontext->__ss.__srr0);
  26 #else
  27         GC_handleSigProf ((code_pointer) ucp->uc_mcontext->ss.srr0);
  28 #endif
  29 #elif (defined(__i386__))
  30 #if __DARWIN_UNIX03
  31         GC_handleSigProf ((code_pointer) ucp->uc_mcontext->__ss.__eip);
  32 #else
  33         GC_handleSigProf ((code_pointer) ucp->uc_mcontext->ss.eip);
  34 #endif
  35 #elif (defined(__x86_64__))
  36 #if __DARWIN_UNIX03
  37         GC_handleSigProf ((code_pointer) ucp->uc_mcontext->__ss.__rip);
  38 #else
  39         GC_handleSigProf ((code_pointer) ucp->uc_mcontext->ss.rip);
  40 #endif
  41 #else
  42 #error Unsupported darwin CPU architecture
  43 #endif
  44 }
  45
  46 void GC_setSigProfHandler (struct sigaction *sa) {
  47         sa->sa_flags = SA_ONSTACK | SA_RESTART | SA_SIGINFO;
  48         sa->sa_sigaction = (void (*)(int, siginfo_t*, void*))catcher;
  49 }