2006-09-21 Sandro Tolaini <tolaini@libero.it>

[pf3gnuchains/gcc-fork.git] / boehm-gc / include / private / gcconfig.h

diff --git a/boehm-gc/include/private/gcconfig.h b/boehm-gc/include/private/gcconfig.h
index c028e5d..26db82e 100644 (file)
--- a/boehm-gc/include/private/gcconfig.h
+++ b/boehm-gc/include/private/gcconfig.h
@@ -55,7 +55,7 @@
 # endif
 
 /* And one for FreeBSD: */
-# if defined(__FreeBSD__) && !defined(FREEBSD)
+# if ( defined(__FreeBSD__) || defined(__FreeBSD_kernel__) ) && !defined(FREEBSD)
 #    define FREEBSD
 # endif
 
@@ -304,7 +304,7 @@
 #    define mach_type_known
 #   elif defined(__i386__)
 #    define I386
-     --> Not really supported, but at least we recognize it.
+#    define mach_type_known
 #   endif
 # endif
 # if defined(NeXT) && defined(mc68000)
@@ -1241,8 +1241,15 @@
 #      ifndef GC_FREEBSD_THREADS
 #          define MPROTECT_VDB
 #      endif
-#      define SIG_SUSPEND SIGUSR1
-#      define SIG_THR_RESTART SIGUSR2
+#      ifdef __GLIBC__
+#          define SIG_SUSPEND          (32+6)
+#          define SIG_THR_RESTART      (32+5)
+           extern int _end[];
+#          define DATAEND (_end)
+#      else
+#          define SIG_SUSPEND SIGUSR1
+#          define SIG_THR_RESTART SIGUSR2
+#      endif
 #      define FREEBSD_STACKBOTTOM
 #      ifdef __ELF__
 #          define DYNAMIC_LOADING
@@ -1301,6 +1308,29 @@
 /* #     define MPROTECT_VDB  Not quite working yet? */
 #     define DYNAMIC_LOADING
 #   endif
+#   ifdef DARWIN
+#     define OS_TYPE "DARWIN"
+#     define DARWIN_DONT_PARSE_STACK
+#     define DYNAMIC_LOADING
+      /* XXX: see get_end(3), get_etext() and get_end() should not be used.
+        These aren't used when dyld support is enabled (it is by default) */
+#     define DATASTART ((ptr_t) get_etext())
+#     define DATAEND   ((ptr_t) get_end())
+#     define STACKBOTTOM ((ptr_t) 0xc0000000)
+#     define USE_MMAP
+#     define USE_MMAP_ANON
+#     define USE_ASM_PUSH_REGS
+      /* This is potentially buggy. It needs more testing. See the comments in
+        os_dep.c.  It relies on threads to track writes. */
+#     ifdef GC_DARWIN_THREADS
+/* #       define MPROTECT_VDB -- disabled for now.  May work for some apps. */
+#     endif
+#     include <unistd.h>
+#     define GETPAGESIZE() getpagesize()
+      /* There seems to be some issues with trylock hanging on darwin. This
+         should be looked into some more */
+#      define NO_PTHREAD_TRYLOCK
+#   endif /* DARWIN */
 # endif
 
 # ifdef NS32K
@@ -1952,6 +1982,28 @@
 #          define PREFETCH_FOR_WRITE(x) __builtin_prefetch((x), 1)
 #      endif
 #   endif
+#   ifdef FREEBSD
+#      define OS_TYPE "FREEBSD"
+#      ifndef GC_FREEBSD_THREADS
+#          define MPROTECT_VDB
+#      endif
+#      ifdef __GLIBC__
+#          define SIG_SUSPEND          (32+6)
+#          define SIG_THR_RESTART      (32+5)
+           extern int _end[];
+#          define DATAEND (_end)
+#      else
+#          define SIG_SUSPEND SIGUSR1
+#          define SIG_THR_RESTART SIGUSR2
+#      endif
+#      define FREEBSD_STACKBOTTOM
+#      ifdef __ELF__
+#          define DYNAMIC_LOADING
+#      endif
+       extern char etext[];
+       extern char * GC_FreeBSDGetDataStart();
+#      define DATASTART GC_FreeBSDGetDataStart(0x1000, &etext)
+#   endif
 #   ifdef NETBSD
 #      define OS_TYPE "NETBSD"
 #      ifdef __ELF__
@@ -2023,7 +2075,7 @@
 #   define SUNOS5SIGS
 # endif
 
-# if defined(FREEBSD) && (__FreeBSD__ >= 4)
+# if defined(FREEBSD) && ((__FreeBSD__ >= 4) || (__FreeBSD_kernel__ >= 4))
 #   define SUNOS5SIGS
 # endif
 
@@ -2086,7 +2138,7 @@
 #   define CACHE_LINE_SIZE 32  /* Wild guess   */
 # endif
 
-# ifdef LINUX
+# if defined(LINUX) || defined(__GLIBC__)
 #   define REGISTER_LIBRARIES_EARLY
     /* We sometimes use dl_iterate_phdr, which may acquire an internal */
     /* lock.  This isn't safe after the world has stopped.  So we must */
@@ -2167,7 +2219,7 @@
 #if defined(SPARC)
 # define CAN_SAVE_CALL_ARGS
 #endif
-#if (defined(I386) || defined(X86_64)) && defined(LINUX)
+#if (defined(I386) || defined(X86_64)) && (defined(LINUX) || defined(__GLIBC__))
            /* SAVE_CALL_CHAIN is supported if the code is compiled to save     */
            /* frame pointers by default, i.e. no -fomit-frame-pointer flag.    */
 # define CAN_SAVE_CALL_ARGS