===================================================================
@@ -0,0 +1,89 @@
+2011-11-02 Aldy Hernandez <aldyh@redhat.com>
+
+ * Merge from mainline rev 180744.
+
+2011-09-14 Aldy Hernandez <aldyh@redhat.com>
+
+ * Merge from mainline rev 178608.
+
+2010-04-14 Aldy Hernandez <aldyh@redhat.com>
+
+ * Merge from mainline rev 158257.
+
+2010-03-31 Richard Henderson <rth@redhat.com>
+
+ * Makefile.in: Rebuild.
+
+2010-02-10 Aldy Hernandez <aldyh@redhat.com>
+
+ * Merge from mainline rev 156607.
+
+2009-11-13 Richard Henderson <rth@redhat.com>
+
+ * Makefile.def (lang_env_dependencies): libitm is c++.
+ * Makefile.in: Rebuild.
+
+2009-11-03 Richard Henderson <rth@redhat.com>
+
+ * config/mmap.m4: New file.
+
+2009-10-28 Richard Henderson <rth@redhat.com>
+
+ * Merge from mainline rev 153678.
+
+2009-10-14 Richard Henderson <rth@redhat.com>
+
+ * Merge from mainline rev 152728.
+
+2009-10-13 Richard Henderson <rth@redhat.com>
+
+ * Merge from mainline rev 152433.
+
+2009-09-09 Aldy Hernandez <aldyh@redhat.com>
+
+ * Merge from mainline rev 150253:151506.
+
+2009-07-31 Richard Henderson <rth@redhat.com>
+
+ * Merge from mainline rev 150253.
+
+2009-07-17 Richard Henderson <rth@redhat.com>
+
+ * Merge from mainline rev 149731.
+
+2009-06-26 Richard Henderson <rth@redhat.com>
+
+ * Merge from mainline rev 148984.
+
+2009-06-18 Richard Henderson <rth@redhat.com>
+
+ * Merge from mainline rev 148549.
+
+2008-11-21 Richard Henderson <rth@redhat.com>
+
+ * Makefile.def: Add libitm target module.
+ * configure.ac: Likewise.
+ * Makefile.in, configure: Rebuild.
+
+2008-10-27 Richard Henderson <rth@redhat.com>
+
+ Merge from mainline rev 141397.
+
===================================================================
@@ -139,6 +139,7 @@ target_modules = { module= boehm-gc; };
target_modules = { module= rda; };
target_modules = { module= libada; };
target_modules = { module= libgomp; bootstrap= true; lib_path=.libs; };
+target_modules = { module= libitm; lib_path=.libs; };
// These are (some of) the make targets to be done in each subdirectory.
// Not all; these are the ones which don't have special options.
@@ -470,6 +471,7 @@ dependencies = { module=all-m4; on=all-b
// environment (e.g. on libstdc++). By default target modules depend
// on libgcc and newlib/libgloss.
lang_env_dependencies = { module=libjava; cxx=true; };
+lang_env_dependencies = { module=libitm; cxx=true; };
lang_env_dependencies = { module=newlib; no_c=true; };
lang_env_dependencies = { module=libgloss; no_c=true; };
lang_env_dependencies = { module=libgcc; no_gcc=true; no_c=true; };
===================================================================
@@ -154,6 +154,7 @@ target_libraries="target-libgcc \
target-libgloss \
target-newlib \
target-libgomp \
+ target-libitm \
target-libstdc++-v3 \
target-libmudflap \
target-libssp \
@@ -492,6 +493,24 @@ if test x$enable_libgomp = x ; then
esac
fi
+# Disable libitm on non POSIX hosted systems.
+if test x$enable_libitm = x ; then
+ # Enable libitm by default on hosted POSIX systems.
+ case "${target}" in
+ *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
+ ;;
+ *-*-netbsd* | *-*-freebsd* | *-*-openbsd*)
+ ;;
+ *-*-solaris2* | *-*-sysv4* | *-*-irix6* | *-*-osf* | *-*-hpux11*)
+ ;;
+ *-*-darwin* | *-*-aix*)
+ ;;
+ *)
+ noconfigdirs="$noconfigdirs target-libitm"
+ ;;
+ esac
+fi
+
# Disable libssp for some systems.
case "${target}" in
avr-*-*)
===================================================================
@@ -2681,6 +2681,7 @@ target_libraries="target-libgcc \
target-libgloss \
target-newlib \
target-libgomp \
+ target-libitm \
target-libstdc++-v3 \
target-libmudflap \
target-libssp \
@@ -3056,6 +3057,24 @@ if test x$enable_libgomp = x ; then
esac
fi
+# Disable libitm on non POSIX hosted systems.
+if test x$enable_libitm = x ; then
+ # Enable libitm by default on hosted POSIX systems.
+ case "${target}" in
+ *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
+ ;;
+ *-*-netbsd* | *-*-freebsd* | *-*-openbsd*)
+ ;;
+ *-*-solaris2* | *-*-sysv4* | *-*-irix6* | *-*-osf* | *-*-hpux11*)
+ ;;
+ *-*-darwin* | *-*-aix*)
+ ;;
+ *)
+ noconfigdirs="$noconfigdirs target-libitm"
+ ;;
+ esac
+fi
+
# Disable libssp for some systems.
case "${target}" in
avr-*-*)
===================================================================
@@ -0,0 +1,97 @@
+dnl ----------------------------------------------------------------------
+dnl This whole bit snagged from gcc
+
+dnl
+dnl mmap(2) blacklisting. Some platforms provide the mmap library routine
+dnl but don't support all of the features we need from it.
+dnl
+AC_DEFUN([GCC_AC_FUNC_MMAP_BLACKLIST],
+[
+AC_CHECK_HEADER([sys/mman.h],
+ [gcc_header_sys_mman_h=yes], [gcc_header_sys_mman_h=no])
+AC_CHECK_FUNC([mmap], [gcc_func_mmap=yes], [gcc_func_mmap=no])
+if test "$gcc_header_sys_mman_h" != yes \
+ || test "$gcc_func_mmap" != yes; then
+ gcc_cv_func_mmap_file=no
+ gcc_cv_func_mmap_dev_zero=no
+ gcc_cv_func_mmap_anon=no
+else
+ AC_CACHE_CHECK([whether read-only mmap of a plain file works],
+ gcc_cv_func_mmap_file,
+ [# Add a system to this blacklist if
+ # mmap(0, stat_size, PROT_READ, MAP_PRIVATE, fd, 0) doesn't return a
+ # memory area containing the same data that you'd get if you applied
+ # read() to the same fd. The only system known to have a problem here
+ # is VMS, where text files have record structure.
+ case "$host_os" in
+ vms* | ultrix*)
+ gcc_cv_func_mmap_file=no ;;
+ *)
+ gcc_cv_func_mmap_file=yes;;
+ esac])
+ AC_CACHE_CHECK([whether mmap from /dev/zero works],
+ gcc_cv_func_mmap_dev_zero,
+ [# Add a system to this blacklist if it has mmap() but /dev/zero
+ # does not exist, or if mmapping /dev/zero does not give anonymous
+ # zeroed pages with both the following properties:
+ # 1. If you map N consecutive pages in with one call, and then
+ # unmap any subset of those pages, the pages that were not
+ # explicitly unmapped remain accessible.
+ # 2. If you map two adjacent blocks of memory and then unmap them
+ # both at once, they must both go away.
+ # Systems known to be in this category are Windows (all variants),
+ # VMS, and Darwin.
+ case "$host_os" in
+ vms* | cygwin* | pe | mingw* | darwin* | ultrix* | hpux10* |
hpux11.00)
+ gcc_cv_func_mmap_dev_zero=no ;;
+ *)
+ gcc_cv_func_mmap_dev_zero=yes;;
+ esac])
+
+ # Unlike /dev/zero, the MAP_ANON(YMOUS) defines can be probed for.
+ AC_CACHE_CHECK([for MAP_ANON(YMOUS)], gcc_cv_decl_map_anon,
+ [AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
+[#include <sys/types.h>
+#include <sys/mman.h>
+#include <unistd.h>
+
+#ifndef MAP_ANONYMOUS
+#define MAP_ANONYMOUS MAP_ANON
+#endif
+],
+[int n = MAP_ANONYMOUS;])],
+ gcc_cv_decl_map_anon=yes,
+ gcc_cv_decl_map_anon=no)])
+
+ if test $gcc_cv_decl_map_anon = no; then
+ gcc_cv_func_mmap_anon=no
+ else
+ AC_CACHE_CHECK([whether mmap with MAP_ANON(YMOUS) works],
+ gcc_cv_func_mmap_anon,
+ [# Add a system to this blacklist if it has mmap() and MAP_ANON or
+ # MAP_ANONYMOUS, but using mmap(..., MAP_PRIVATE|MAP_ANONYMOUS, -1, 0)
+ # doesn't give anonymous zeroed pages with the same properties listed
+ # above for use of /dev/zero.
+ # Systems known to be in this category are Windows, VMS, and SCO Unix.
+ case "$host_os" in
+ vms* | cygwin* | pe | mingw* | sco* | udk* )
+ gcc_cv_func_mmap_anon=no ;;
+ *)
+ gcc_cv_func_mmap_anon=yes;;
+ esac])
+ fi
+fi
+
+if test $gcc_cv_func_mmap_file = yes; then
+ AC_DEFINE(HAVE_MMAP_FILE, 1,
+ [Define if read-only mmap of a plain file works.])
+fi
+if test $gcc_cv_func_mmap_dev_zero = yes; then
+ AC_DEFINE(HAVE_MMAP_DEV_ZERO, 1,
+ [Define if mmap of /dev/zero works.])
+fi
+if test $gcc_cv_func_mmap_anon = yes; then
+ AC_DEFINE(HAVE_MMAP_ANON, 1,
+ [Define if mmap with MAP_ANON(YMOUS) works.])
+fi