Changeset 1453 for trunk/src

Timestamp:

Mar 30, 2008, 4:06:49 PM (17 years ago)

Author:

bird

Message:

ported to unix.

File:

• trunk/src/kmk/electric.c (modified) (5 diffs)

trunk/src/kmk/electric.c

@@ -29 +29 @@
 # else
 #  include <sys/mman.h>
+#  include <errno.h>
 # endif
 # include <string.h>
@@ -47 +48 @@
 static void fatal_error (const char *msg)
 {
+#ifdef _MSC_VER
   fprintf (stderr, "electric heap error: %s\n", msg);
   __debugbreak ();
+#else
+  fprintf (stderr, "electric heap error: %s (errno=%d)\n", msg, errno);
+  __asm__ ("int3"); /* not portable... */
+#endif 
   abort ();
   exit (1);
@@ -59 +65 @@
     fatal_error ("VirtualFree failed");
 # else
+  if (munmap(ptr, aligned))
+    fatal_error ("munmap failed");
 # endif
 }
@@ -99 +107 @@
     fatal_error ("failed to protect freed memory");
 # else
+  if (mprotect(hdr, aligned - 0x1000, PROT_NONE))
+    fatal_error ("failed to protect freed memory");
 # endif
 
@@ -124 +134 @@
         fatal_error ("failed to set guard page protection");
 # else
+      hdr = mmap(NULL, aligned, PROT_EXEC | PROT_READ | PROT_WRITE, MAP_ANON | MAP_PRIVATE, -1, 0);
+      if (hdr == MAP_FAILED)
+        hdr = 0;
+      if (hdr
+       && mprotect((char *)hdr + aligned - 0x1000, 0x1000, PROT_NONE))
+        fatal_error ("failed to set guard page protection");
 # endif
       if (hdr)