[patch] add GNU/kFreeBSD support into boehm-gc
Petr Salinger
Petr.Salinger@seznam.cz
Wed Jun 7 09:21:00 GMT 2006
Hi,
would be possible to merge GNU/kFreeBSD support in boehm-gc into gcc.
It gives reasonable results, see http://gcc.gnu.org/ml/java/2006-05/msg00093.html.
Those changes to boehm-gc have been just accepted by upstream,
http://www.hpl.hp.com/hosted/linux/mail-archives/gc/2006-June/001332.html
2006-06-07 Petr Salinger <Petr.Salinger@seznam.cz>
* configure.ac: add support for GNU/kFreeBSD, accepted by upstream for gc 6.8
* dyn_load.c: Likewise.
* include/gc.h: Likewise.
* private/gcconfig.h: Likewise.
* configure: Regenerate.
* include/gc_config.h.in: Regenerate.
The only needed change outside boehm-gc to get gcj working is
to add support of GNU/kFreeBSD into shlibpath.m4.
The easiest way is (together with regenerate of configure):
--- libjava/shlibpath.m4~ 2006-06-07 10:35:36.000000000 +0200
+++ libjava/shlibpath.m4 2006-06-07 10:35:36.000000000 +0200
@@ -361,7 +361,7 @@
;;
# This must be Linux ELF.
-linux*)
+linux*|k*bsd*-gnu)
version_type=linux
need_lib_prefix=no
need_version=no
Should I do anything else to get it included ?
Petr
-------------- next part --------------
diff -ur gcc-4.2-20060603.orig/boehm-gc/include/gc_config.h.in gcc-4.2-20060603/boehm-gc/include/gc_config.h.in
--- gcc-4.2-20060603.orig/boehm-gc/include/gc_config.h.in 2006-06-03 04:07:36.000000000 +0200
+++ gcc-4.2-20060603/boehm-gc/include/gc_config.h.in 2006-06-07 10:28:24.000000000 +0200
@@ -166,6 +166,9 @@
/* define GC_local_malloc() & GC_local_malloc_atomic() */
#undef THREAD_LOCAL_ALLOC
+/* use tls for boehm */
+#undef USE_COMPILER_TLS
+
/* use MMAP instead of sbrk to get new memory */
#undef USE_MMAP
diff -ur gcc-4.2-20060603.orig/boehm-gc/configure gcc-4.2-20060603/boehm-gc/configure
--- gcc-4.2-20060603.orig/boehm-gc/configure 2006-06-03 19:44:20.000000000 +0200
+++ gcc-4.2-20060603/boehm-gc/configure 2006-06-07 10:28:24.000000000 +0200
@@ -5444,6 +5444,32 @@
{ echo "$as_me:$LINENO: WARNING: \"Only HP-UX 11 POSIX threads are supported.\"" >&5
echo "$as_me: WARNING: \"Only HP-UX 11 POSIX threads are supported.\"" >&2;}
;;
+ *-*-kfreebsd*-gnu)
+ cat >>confdefs.h <<\_ACEOF
+#define GC_FREEBSD_THREADS 1
+_ACEOF
+
+ INCLUDES="$INCLUDES -pthread"
+ THREADDLLIBS=-pthread
+ cat >>confdefs.h <<\_ACEOF
+#define _REENTRANT 1
+_ACEOF
+
+ if test "${enable_parallel_mark}" = yes; then
+ cat >>confdefs.h <<\_ACEOF
+#define PARALLEL_MARK 1
+_ACEOF
+
+ fi
+ cat >>confdefs.h <<\_ACEOF
+#define THREAD_LOCAL_ALLOC 1
+_ACEOF
+
+ cat >>confdefs.h <<\_ACEOF
+#define USE_COMPILER_TLS 1
+_ACEOF
+
+ ;;
*-*-freebsd*)
{ echo "$as_me:$LINENO: WARNING: \"FreeBSD does not yet fully support threads with Boehm GC.\"" >&5
echo "$as_me: WARNING: \"FreeBSD does not yet fully support threads with Boehm GC.\"" >&2;}
diff -ur gcc-4.2-20060603.orig/boehm-gc/configure.ac gcc-4.2-20060603/boehm-gc/configure.ac
--- gcc-4.2-20060603.orig/boehm-gc/configure.ac 2006-06-03 04:07:36.000000000 +0200
+++ gcc-4.2-20060603/boehm-gc/configure.ac 2006-06-07 10:28:24.000000000 +0200
@@ -155,6 +155,17 @@
*-*-hpux10*)
AC_MSG_WARN("Only HP-UX 11 POSIX threads are supported.")
;;
+ *-*-kfreebsd*-gnu)
+ AC_DEFINE(GC_FREEBSD_THREADS)
+ INCLUDES="$INCLUDES -pthread"
+ THREADDLLIBS=-pthread
+ AC_DEFINE(_REENTRANT)
+ if test "${enable_parallel_mark}" = yes; then
+ AC_DEFINE(PARALLEL_MARK)
+ fi
+ AC_DEFINE(THREAD_LOCAL_ALLOC)
+ AC_DEFINE(USE_COMPILER_TLS, 1,[use tls for boehm])
+ ;;
*-*-freebsd*)
AC_MSG_WARN("FreeBSD does not yet fully support threads with Boehm GC.")
AC_DEFINE(GC_FREEBSD_THREADS,1,[support FreeBSD threads])
diff -ur gcc-4.2-20060603.orig/boehm-gc/dyn_load.c gcc-4.2-20060603/boehm-gc/dyn_load.c
--- gcc-4.2-20060603.orig/boehm-gc/dyn_load.c 2006-04-24 15:40:21.000000000 +0200
+++ gcc-4.2-20060603/boehm-gc/dyn_load.c 2006-06-07 10:28:24.000000000 +0200
@@ -26,7 +26,7 @@
* None of this is safe with dlclose and incremental collection.
* But then not much of anything is safe in the presence of dlclose.
*/
-#if defined(__linux__) && !defined(_GNU_SOURCE)
+#if (defined(__linux__) || defined(__GLIBC__)) && !defined(_GNU_SOURCE)
/* Can't test LINUX, since this must be define before other includes */
# define _GNU_SOURCE
#endif
@@ -392,7 +392,7 @@
/* For glibc 2.2.4+. Unfortunately, it doesn't work for older */
/* versions. Thanks to Jakub Jelinek for most of the code. */
-# if defined(LINUX) /* Are others OK here, too? */ \
+# if (defined(LINUX) || defined (__GLIBC__)) /* Are others OK here, too? */ \
&& (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ > 2) \
|| (__GLIBC__ == 2 && __GLIBC_MINOR__ == 2 && defined(DT_CONFIG)))
diff -ur gcc-4.2-20060603.orig/boehm-gc/include/gc.h gcc-4.2-20060603/boehm-gc/include/gc.h
--- gcc-4.2-20060603.orig/boehm-gc/include/gc.h 2006-04-24 15:40:21.000000000 +0200
+++ gcc-4.2-20060603/boehm-gc/include/gc.h 2006-06-07 10:28:24.000000000 +0200
@@ -500,7 +500,7 @@
# define GC_RETURN_ADDR (GC_word)__return_address
#endif
-#ifdef __linux__
+#if defined(__linux__) || defined(__GLIBC__)
# include <features.h>
# if (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 1 || __GLIBC__ > 2) \
&& !defined(__ia64__)
diff -ur gcc-4.2-20060603.orig/boehm-gc/include/private/gcconfig.h gcc-4.2-20060603/boehm-gc/include/private/gcconfig.h
--- gcc-4.2-20060603.orig/boehm-gc/include/private/gcconfig.h 2006-01-25 20:33:37.000000000 +0100
+++ gcc-4.2-20060603/boehm-gc/include/private/gcconfig.h 2006-06-07 10:29:34.000000000 +0200
@@ -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
@@ -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
@@ -1952,6 +1959,28 @@
# 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 +2052,7 @@
# define SUNOS5SIGS
# endif
-# if defined(FREEBSD) && (__FreeBSD__ >= 4)
+# if defined(FREEBSD) && ((__FreeBSD__ >= 4) || (__FreeBSD_kernel__ >= 4))
# define SUNOS5SIGS
# endif
@@ -2086,7 +2115,7 @@
# 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 +2196,7 @@
#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
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