gcc: 17f0f5acdcfb9181203ca9b6d8f8cbc64e5ce843 (2016-11-30)

2 files changed, 142 insertions, 323 deletions

diff --git a/open_issues/gcc.mdwn b/open_issues/gcc.mdwn
index 7850d024..3627179b 100644
--- a/open_issues/gcc.mdwn
+++ b/open_issues/gcc.mdwn
@@ -35,8 +35,7 @@ git diff --patience --stat=$COLUMNS,$COLUMNS --patch --src-prefix=./ --dst-prefi
 -->
 
 Last reviewed up to the Git mirror's commit
-a050099a416f013bda35832b878d9a57b0cbb231 (gcc-6-branch branch point;
-2016-04-15).
+17f0f5acdcfb9181203ca9b6d8f8cbc64e5ce843 (2016-11-30).
 
 <http://gcc.gnu.org/install/configure.html> has documentation for the
 `configure` switches.
@@ -65,215 +64,6 @@ a050099a416f013bda35832b878d9a57b0cbb231 (gcc-6-branch branch point;
       * `lib-prefix.m4` (present twice in GCC sources) contains one remaining
         `linux`-only case.
 
-      * `libjava`
-
-        TODO:
-
-            classpath/include/jni_md-x86-linux-gnu.h
-
-        See below (`log_build`).
-
-            Makefile.am:## _GNU_SOURCE defined for some Linux builds.  It doesn't hurt to
-            Makefile.am:## always define it.  Some systems, including Linux, need
-            Makefile.am:# certain linuxthread functions get linked:
-            Makefile.am:## This is specific to Linux/{Free,Net,Open}BSD/Hurd and perhaps few others.
-            Makefile.am:  $(mkinstalldirs) $(DESTDIR)$(SDK_INCLUDE_DIR)/linux; \
-            Makefile.am:      $(DESTDIR)$(SDK_INCLUDE_DIR)/linux); \
-            Makefile.am:      $(DESTDIR)$(SDK_INCLUDE_DIR)/linux/$$headername.h; \
-            classpath/NEWS:  the epoll notification mechanism on Linux 2.6.
-            classpath/config.rpath:    linux* | k*bsd*-gnu)
-            classpath/config.rpath:    gnu* | linux* | k*bsd*-gnu)
-            classpath/config.rpath:  linux*oldld* | linux*aout* | linux*coff*)
-            classpath/config.rpath:  linux* | k*bsd*-gnu)
-            classpath/configure.ac:    *linux*)
-            classpath/configure.ac:    target_os=linux-gnu 
-            classpath/configure.ac:    AC_MSG_WARN(no, using x86-linux-gnu)
-            classpath/doc/cp-vmintegration.texinfo:has been primarily tested against Linux and lacks garbage collections, a
-            classpath/doc/cp-vmintegration.texinfo:Linux and Windows 2000.  As of June, 2004, it does not appear that ORP
-            classpath/doc/cp-vmintegration.texinfo:This is a free Java Virtual Machine that is being developed on GNU/Linux
-            classpath/doc/cp-vmintegration.texinfo:Runs on the x86 and PowerPC architectures, on the AIX, Linux, and Mac
-            classpath/gnu/classpath/SystemProperties.java:        && "Linux".equals(defaultProperties.get("os.name")))
-            classpath/gnu/java/nio/EpollSelectorImpl.java: * notification mechanism on GNU/Linux.
-            classpath/java/io/File.java:   * <strong>Implementation note</strong>: Unlike the RI, on Linux and UNIX
-            classpath/java/net/MimeTypeMapper.java:        // On Linux this usually means /etc/mime.types.
-            classpath/ltcf-cxx.sh:  linux*)
-            classpath/ltcf-cxx.sh:    linux*)
-            classpath/ltconfig:# Transform linux* to *-*-linux-gnu*, to support old configure scripts.
-            classpath/ltconfig:linux-gnu*) ;;
-            classpath/ltconfig:linux*) host=`echo $host | sed 's/^\(.*-.*-linux\)\(.*\)$/\1-gnu\2/'`
-            classpath/ltconfig:  version_type=linux
-            classpath/ltconfig:  version_type=linux
-            classpath/ltconfig:  version_type=linux
-            classpath/ltconfig:  version_type=linux
-            classpath/ltconfig:  version_type=linux
-            classpath/ltconfig:    version_type=linux
-            classpath/ltconfig:# No shared lib support for Linux oldld, aout, or coff.
-            classpath/ltconfig:linux-gnuoldld* | linux-gnuaout* | linux-gnucoff*)
-            classpath/ltconfig:# This must be Linux ELF.
-            classpath/ltconfig:linux-gnu*)
-            classpath/ltconfig:  version_type=linux
-            classpath/ltconfig:  # powerpc, because MkLinux only supported shared libraries with the
-            classpath/ltconfig:  # most powerpc-linux boxes support dynamic linking these days and
-            classpath/ltconfig:  # assume the GNU/Linux dynamic linker is in use.
-            classpath/ltconfig:  dynamic_linker='GNU/Linux ld.so'
-            classpath/ltconfig:  version_type=linux
-            classpath/ltconfig:  version_type=linux
-            classpath/ltconfig:  version_type=linux
-            classpath/ltconfig:  version_type=linux
-            classpath/ltconfig:  dynamic_linker='GNU/Linux ld.so'
-            classpath/ltconfig:  version_type=linux
-            classpath/ltconfig:  version_type=linux
-            classpath/ltconfig:    version_type=linux
-            classpath/ltmain.sh:#         compiler flags:		$LTCFLAGS
-            classpath/ltmain.sh:	  *-*-linux*)
-            classpath/ltmain.sh:	  darwin|linux|osf|windows|none)
-            classpath/ltmain.sh:	  # Like Linux, but with the current version available in
-            classpath/ltmain.sh:	linux)
-            classpath/m4/lib-link.m4:              dnl   2. if it's /usr/local/include and we are using GCC on Linux,
-            classpath/m4/lib-link.m4:                      linux* | gnu* | k*bsd*-gnu) haveit=yes;;
-            classpath/m4/lib-link.m4:                    dnl   2. if it's /usr/local/lib and we are using GCC on Linux,
-            classpath/m4/lib-link.m4:                            linux* | gnu* | k*bsd*-gnu) haveit=yes;;
-            classpath/m4/lib-prefix.m4:    dnl   3. if it's /usr/local/include and we are using GCC on Linux,
-            classpath/m4/lib-prefix.m4:              linux* | gnu* | k*bsd*-gnu) haveit=yes;;
-            classpath/m4/lib-prefix.m4:            CPPFLAGS="${CPPFLAGS}${CPPFLAGS:+ }-I$additional_includedir"
-            classpath/m4/lib-prefix.m4:    dnl   3. if it's /usr/local/lib and we are using GCC on Linux,
-            classpath/m4/lib-prefix.m4:              linux*) haveit=yes;;
-            classpath/m4/lib-prefix.m4:            LDFLAGS="${LDFLAGS}${LDFLAGS:+ }-L$additional_libdir"
-            classpath/m4/lib-prefix.m4:  dnl On glibc systems, the current practice is that on a system supporting
-            classpath/native/jni/java-net/javanet.c:      /* Not writable on Linux */
-            classpath/native/jni/java-nio/gnu_java_nio_VMChannel.c: * vector based read call (currently readv on Linux).
-            classpath/native/jni/java-nio/gnu_java_nio_VMChannel.c: * vector based read call (currently readv on Linux).
-            classpath/vm/reference/java/lang/VMProcess.java:  // Linux use a process-per-thread model, which means the same thread
-
-            configure.ac:     *-*-linux*)
-            configure.ac: AC_DEFINE(LINUX_THREADS, 1, [Define if using POSIX threads on Linux.])
-            include/config.h.in:/* Define if using POSIX threads on Linux. */
-            include/config.h.in:#undef LINUX_THREADS
-            include/posix-threads.h:# ifdef LOCK_DEBUG /* Assumes Linuxthreads */
-            include/posix-threads.h:#ifndef LINUX_THREADS
-            include/posix-threads.h:// pthread_mutex_destroy does nothing on Linux and it is a win to avoid
-            include/posix-threads.h:#endif /* LINUX_THREADS */
-            include/posix-threads.h:      // For linux_threads this is really a pointer to its thread data
-            include/posix-threads.h:// E.g. on X86 Linux, pthread_self() is too slow for our purpose.
-            include/posix-threads.h:// This code should probably go away when Linux/X86 starts using a
-            posix-threads.cc:#if defined(LINUX_THREADS) || defined(FREEBSD_THREADS)
-            posix-threads.cc:  // LinuxThreads (prior to glibc 2.1) usurps both SIGUSR1 and SIGUSR2.
-            posix-threads.cc:#else /* LINUX_THREADS */
-            posix-threads.cc:#endif /* LINUX_THREADS */
-            posix-threads.cc:      // In older glibc's (prior to 2.1.3), the cond_wait functions may 
-            posix-threads.cc:  // glibc 2.1.3 doesn't set the value of `thread' until after start_routine
-
-            configure.ac:      # We can save a little space at runtime if the mutex has m_count
-            configure.ac:      # or __m_count.  This is a nice hack for Linux.
-            configure.ac:      AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <pthread.h>]], [[
-            configure.ac:          extern pthread_mutex_t *mutex; int q = mutex->m_count;
-
-        Makes sense to implement in our [[/libpthread]] ([[!taglink
-        open_issue_libpthread]])?
-
-            configure.ac: i?86-*-linux*)
-            configure.ac:    SIGNAL_HANDLER=include/i386-signal.h
-            configure.ac:    SIGNAL_HANDLER_AUX=include/x86_64-signal.h
-            include/i386-signal.h:// on an i386 based Linux system.
-            include/i386-signal.h:   directly rather than via glibc.  The sigaction structure that the
-            include/i386-signal.h: * called _directly_ by the kernel, because linuxthreads wraps signal
-            include/i386-signal.h: * handler to a linuxthreads wrapper, we will lose the PC adjustment
-            include/i386-signal.h: * Also, there may not be any unwind info in the linuxthreads
-
-            configure.ac:      *-linux*)
-            configure.ac:        host_os=linux;;
-
-            configure.host:  i[34567]86*-linux* | \
-            configure.host:  	can_unwind_signal=yes
-            configure.host:	libgcj_ld_symbolic='-Wl,-Bsymbolic'
-            configure.host:	if test x$slow_pthread_self = xyes \
-            configure.host:       [...]
-            configure.host:  i[34567]86*-kfreebsd*-gnu | x86_64*-kfreebsd*-gnu)
-            configure.host:        libgcj_ld_symbolic='-Wl,-Bsymbolic'
-            configure.host:        slow_pthread_self=
-
-            java/lang/natObject.cc:// What follows currenly assumes a Linux-like platform.
-            java/lang/natObject.cc:// Some of it specifically assumes X86 or IA64 Linux, though that
-            java/lang/natObject.cc:#   define INVALID_THREAD_ID 0  // Works for Linux?
-            java/lang/natObject.cc:  const unsigned MIN_SLEEP_USECS = 2001; // Shorter times spin under Linux.
-            java/lang/natVMClassLoader.cc:      // a module named (eg, on Linux) `lib-gnu-pkg-quux.so', followed
-
-            libltdl/acinclude.m4:x86_64-*linux*|ppc*-*linux*|powerpc*-*linux*|s390*-*linux*|sparc*-*linux*)
-            libltdl/acinclude.m4:        x86_64-*linux*)
-            libltdl/acinclude.m4:        ppc64-*linux*|powerpc64-*linux*)
-            libltdl/acinclude.m4:          LD="${LD-ld} -m elf32ppclinux"
-            libltdl/acinclude.m4:        s390x-*linux*)
-            libltdl/acinclude.m4:        sparc64-*linux*)
-            libltdl/acinclude.m4:        x86_64-*linux*)
-            libltdl/acinclude.m4:        ppc*-*linux*|powerpc*-*linux*)
-            libltdl/acinclude.m4:        s390*-*linux*)
-            libltdl/acinclude.m4:        sparc*-*linux*)
-            libltdl/acinclude.m4:    # Under GNU Hurd, this test is not required because there is
-            libltdl/acinclude.m4:  version_type=linux
-            libltdl/acinclude.m4:  version_type=linux
-            libltdl/acinclude.m4:  version_type=linux
-            libltdl/acinclude.m4:  version_type=linux
-            libltdl/acinclude.m4:  version_type=linux
-            libltdl/acinclude.m4:  version_type=linux
-            libltdl/acinclude.m4:		version_type=linux
-            libltdl/acinclude.m4:# No shared lib support for Linux oldld, aout, or coff.
-            libltdl/acinclude.m4:linux*oldld* | linux*aout* | linux*coff*)
-            libltdl/acinclude.m4:# This must be Linux ELF.
-            libltdl/acinclude.m4:linux*)
-            libltdl/acinclude.m4:  version_type=linux
-            libltdl/acinclude.m4:  # powerpc, because MkLinux only supported shared libraries with the
-            libltdl/acinclude.m4:  # most powerpc-linux boxes support dynamic linking these days and
-            libltdl/acinclude.m4:  # assume the GNU/Linux dynamic linker is in use.
-            libltdl/acinclude.m4:  dynamic_linker='GNU/Linux ld.so'
-            libltdl/acinclude.m4:  version_type=linux
-            libltdl/acinclude.m4:  version_type=linux
-            libltdl/acinclude.m4:  version_type=linux
-            libltdl/acinclude.m4:  version_type=linux
-            libltdl/acinclude.m4:  version_type=linux
-            libltdl/acinclude.m4:    version_type=linux
-            libltdl/acinclude.m4:  version_type=linux
-            libltdl/acinclude.m4:# This must be Linux ELF.
-            libltdl/acinclude.m4:linux*)
-            libltdl/acinclude.m4:  linux*)
-            libltdl/acinclude.m4:linux*)
-            libltdl/acinclude.m4:      linux*)
-            libltdl/acinclude.m4:	    # Linux and Compaq Tru64 Unix objects are PIC.
-            libltdl/acinclude.m4:	    # Linux and Compaq Tru64 Unix objects are PIC.
-            libltdl/acinclude.m4:    linux*)
-            libltdl/acinclude.m4:    linux*)
-            libltdl/acinclude.m4:  gnu* | linux* | kfreebsd*-gnu | knetbsd*-gnu)
-            libltdl/acinclude.m4:    # GNU and its variants, using gnu ld.so (Glibc)
-            libltdl/ltmain.sh:	  darwin|linux|osf|windows)
-            libltdl/ltmain.sh:	  # Like Linux, but with the current version available in
-            libltdl/ltmain.sh:	linux)
-            shlibpath.m4:  version_type=linux
-            shlibpath.m4:  version_type=linux
-            shlibpath.m4:  version_type=linux
-            shlibpath.m4:  version_type=linux
-            shlibpath.m4:  version_type=linux
-            shlibpath.m4:		version_type=linux
-            shlibpath.m4:# No shared lib support for Linux oldld, aout, or coff.
-            shlibpath.m4:linux*oldld* | linux*aout* | linux*coff*)
-            shlibpath.m4:# This must be Linux ELF.
-            shlibpath.m4:linux*|k*bsd*-gnu)
-            shlibpath.m4:  version_type=linux
-            shlibpath.m4:  # powerpc, because MkLinux only supported shared libraries with the
-            shlibpath.m4:  # most powerpc-linux boxes support dynamic linking these days and
-            shlibpath.m4:  # assume the GNU/Linux dynamic linker is in use.
-            shlibpath.m4:  dynamic_linker='GNU/Linux ld.so'
-            shlibpath.m4:  version_type=linux
-            shlibpath.m4:  version_type=linux
-            shlibpath.m4:  version_type=linux
-            shlibpath.m4:  version_type=linux
-            shlibpath.m4:    version_type=linux
-            shlibpath.m4:  version_type=linux
-
-            testsuite/lib/libjava.exp:    if { [regexp "linux" $target_triplet] } {
-
-        Adds `-specs=libgcj-test.spec`, which is created by `configure`.  *This
-        spec file is read by gcj when linking.  It is only used by the testing
-        harnesses (in libjava and gdb).*  TODO.  [[!taglink open_issue_gdb]].
-
       * `libgcc`
 
           * `config/t-linux`
@@ -439,6 +229,8 @@ a050099a416f013bda35832b878d9a57b0cbb231 (gcc-6-branch branch point;
             +++ ./gcc/testsuite/gcc.target/i386/noplt-2.c
             +++ ./gcc/testsuite/gcc.target/i386/noplt-3.c
             +++ ./gcc/testsuite/gcc.target/i386/noplt-4.c
+            {+/* { dg-do compile { target *-*-linux* } } */+}
+
             +++ ./gcc/testsuite/gcc.target/i386/pr66275.c
             +++ ./gcc/testsuite/gcc.target/i386/pr68018.c
             {+/* { dg-do compile { target { *-*-linux* && { ! ia32 } } } } */+}
@@ -470,6 +262,72 @@ a050099a416f013bda35832b878d9a57b0cbb231 (gcc-6-branch branch point;
             {+  return+}
             {+}+}
 
+            --- /dev/null
+            +++ ./gcc/testsuite/gcc.target/i386/pr70750-1.c
+            +++ ./gcc/testsuite/gcc.target/i386/pr70750-2.c
+             diff --git ./gcc/testsuite/gcc.target/i386/pr70750-2.c ./gcc/testsuite/gcc.target/i386/pr70750-2.c
+            @@ -0,0 +1,11 @@
+            {+/* { dg-do compile { target *-*-linux* } } */+}
+
+            --- /dev/null
+            +++ ./gcc/testsuite/gcc.target/i386/interrupt-11.c
+            +++ ./gcc/testsuite/gcc.target/i386/interrupt-12.c
+            +++ ./gcc/testsuite/gcc.target/i386/interrupt-13.c
+            +++ ./gcc/testsuite/gcc.target/i386/interrupt-14.c
+            +++ ./gcc/testsuite/gcc.target/i386/interrupt-15.c
+            +++ ./gcc/testsuite/gcc.target/i386/interrupt-16.c
+            +++ ./gcc/testsuite/gcc.target/i386/interrupt-17.c
+            +++ ./gcc/testsuite/gcc.target/i386/interrupt-24.c
+            +++ ./gcc/testsuite/gcc.target/i386/interrupt-8.c
+            {+/* { dg-do compile { target *-*-linux* } } */+}
+
+            --- /dev/null
+            +++ ./gcc/testsuite/gcc.target/i386/pr67400-1.c
+            +++ ./gcc/testsuite/gcc.target/i386/pr67400-2.c
+            +++ ./gcc/testsuite/gcc.target/i386/pr67400-3.c
+            +++ ./gcc/testsuite/gcc.target/i386/pr67400-4.c
+            +++ ./gcc/testsuite/gcc.target/i386/pr67400-5.c
+            +++ ./gcc/testsuite/gcc.target/i386/pr67400-6.c
+            +++ ./gcc/testsuite/gcc.target/i386/pr67400-7.c
+            {+/* { dg-do compile { target *-*-linux* } } */+}
+
+            --- /dev/null
+            +++ ./gcc/testsuite/gcc.target/i386/pr66232-14.c
+            +++ ./gcc/testsuite/gcc.target/i386/pr66232-15.c
+            +++ ./gcc/testsuite/gcc.target/i386/pr66232-16.c
+            +++ ./gcc/testsuite/gcc.target/i386/pr66232-17.c
+            {+/* { dg-do compile { target *-*-linux* } } */+}
+
+            --- /dev/null
+            +++ ./gcc/testsuite/gcc.target/i386/noplt-gd-1.c
+            {+/* { dg-do compile { target { *-*-linux* && tls_get_addr_via_got } } } */+}
+
+            --- /dev/null
+            +++ ./gcc/testsuite/gcc.target/i386/noplt-gd-2.c
+            {+/* { dg-do run { target { *-*-linux* } } } */+}
+
+            --- /dev/null
+            +++ ./gcc/testsuite/gcc.target/i386/noplt-gd-3.c
+            {+/* { dg-do compile { target { *-*-linux* && { ia32 && tls_get_addr_via_got } } } } */+}
+
+            --- /dev/null
+            +++ ./gcc/testsuite/gcc.target/i386/noplt-ld-1.c
+            {+/* { dg-do compile { target { *-*-linux* && tls_get_addr_via_got } } } */+}
+
+            --- /dev/null
+            +++ ./gcc/testsuite/gcc.target/i386/noplt-ld-2.c
+            {+/* { dg-do run { target { *-*-linux* } } } */+}
+
+            --- /dev/null
+            +++ ./gcc/testsuite/gcc.target/i386/noplt-ld-3.c
+            {+/* { dg-do compile { target { *-*-linux* && { ia32 && tls_get_addr_via_got } } } } */+}
+
+            --- /dev/null
+            +++ ./gcc/testsuite/gnat.dg/trampoline3.adb
+            +++ ./gcc/testsuite/gnat.dg/trampoline4.adb
+            {+-- { dg-do compile { target *-*-linux* } }+}
+
+
   * `hurd/usr`
 
     `NATIVE_SYSTEM_HEADER_DIR`, `638454a19c1c08f01c10517bc72a114250fc4f33`,
@@ -733,7 +591,7 @@ a050099a416f013bda35832b878d9a57b0cbb231 (gcc-6-branch branch point;
           to find out why some stuff wasn't compiling even after kfreebsd
           porting patches adding preprocessors checks for __GLIBC__
 
-    GNU/kFreeBSD and GNU/kNetBSD: commit
+    GNU/kFreeBSD: commit
     6396cc37141180db4d2c8f73cab4f5977d8a1e19 (2004-06-24, r83577),
     GNU/kOpenSolaris: commit 3bef40126fb1633018fce47828df0fa9f65f110c
     (2009-01-29, r143768).  See also GDB commits
@@ -1015,6 +873,9 @@ a050099a416f013bda35832b878d9a57b0cbb231 (gcc-6-branch branch point;
 
     [[!debbug 734973]].  gcc-4.9/debian/patches/libcilkrts-targets.diff
 
+    r235870 "Merge libcilkrts from upstream" is supposed to contain the Hurd
+    port (not yet reviewed/tested).
+
   * [low] `libmpx`
 
     Only enabled for GNU/Linux, but actually seems to be portable.
@@ -1061,6 +922,65 @@ a050099a416f013bda35832b878d9a57b0cbb231 (gcc-6-branch branch point;
     ee1bfdb0d611ed2e1057071f39589e6ebcd87983 `Remove __seg_tls before first
     release`.
 
+  * x86 `-mgeneral-regs-only` option, commit
+    f409438030cfed3c6373f0dfa58a4bdf9a65b4ac, [[!GCC_PR 70738]].
+
+    Before being temporarily reverted in commit
+    294528f77a8097ace2986019770cad097a3bbc55, it had originally been added in
+    commit a55668c45867980a07a06690a45edd43b4c82efa `Add -mgeneral-regs-only
+    option`:
+
+        X86 Linux kernel is compiled only with integer instructions.  Currently,
+        
+        -mno-sse -mno-mmx -mno-sse2 -mno-3dnow -mno-avx -mno-80387
+        -mno-fp-ret-in-387  -mskip-rax-setup
+        
+        is used to compile kernel.  If we add another non-integer feature, it
+        has to be turned off.  We can add a -mgeneral-regs-only option, similar
+        to AArch64, to disable all non-integer features so that kernel doesn't
+        need a long list and the same option will work for future compilers.
+        It can also be used to compile interrupt handler.
+
+    Will this be useful for GNU Mach, too?
+
+  * `TARGET_PRINTF_POINTER_FORMAT`
+
+        commit b9833bfd04471afa17cd52aedd911e4671bdd82a
+        Author: msebor <msebor@138bc75d-0d04-0410-961f-82ee72b054a4>
+        Date:   Wed Sep 21 01:39:27 2016 +0000
+        
+            PR middle-end/49905 - Better sanity checking on sprintf src & dest to
+            [...]
+            git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@240298 138bc75d-0d04-0410-961f-82ee72b054a4
+
+    Why is `TARGET_PRINTF_POINTER_FORMAT` `#define`d in `gcc/config/linux.c`?
+    `#define` of `TARGET_PRINTF_POINTER_FORMAT` should move from
+    `gcc/config/linux.h` into `gnu-user.h`, and likewise for definition of
+    `gnu_libc_printf_pointer_format` in `gcc/config/linux.c`?  Then adjust
+    `gcc/testsuite/gcc.dg/tree-ssa/builtin-sprintf-warn-1.c`.
+
+        commit 9ce11577b63e817104a9590b60c5aac49ca4f6e2
+        Author: msebor <msebor@138bc75d-0d04-0410-961f-82ee72b054a4>
+        Date:   Wed Oct 5 15:21:40 2016 +0000
+        
+            PR bootstrap/77819 - undefined reference to gnu_libc_printf_pointer_format with uClibc
+            
+            gcc/ChangeLog:
+            
+                PR bootstrap/77819
+                * config/linux.h (TARGET_PRINTF_POINTER_FORMAT): Define macro.
+                * config/linux.c (gnu_libc_printf_pointer_format): Remove.
+                * targhooks.c [DEFAULT_LIBC == LIBC_UCLIBC) && SINGLE_LIBC]
+                (default_printf_pointer_format): Define function.
+                * targhooks.c (linux_printf_pointer_format): Define new function.
+                * targhooks.h (linux_printf_pointer_format): Declare.
+                (gnu_libc_printf_pointer_format): Remove declaration.
+            
+            git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@240793 138bc75d-0d04-0410-961f-82ee72b054a4
+
+    Some of that stuff has been reverted in commit
+    72d5639d126d3b84a480430b4a4ce7dabd8ebd63.
+
   * `--enable-default-pie`
 
     On 2016-12-05 noticed that per `gcc -v` output, `gcc version 6.2.1 20161124
@@ -1071,8 +991,8 @@ a050099a416f013bda35832b878d9a57b0cbb231 (gcc-6-branch branch point;
 # Build
 
 Here's a log of a GCC build run; this is from Git commit
-a050099a416f013bda35832b878d9a57b0cbb231 (gcc-6-branch branch point;
-2016-04-15), plus *libstdc++ RLIMIT changes* ([[!message-id
+17f0f5acdcfb9181203ca9b6d8f8cbc64e5ce843 (2016-11-30),
+plus *libstdc++ RLIMIT changes* ([[!message-id
 "8760n66mky.fsf@euler.schwinge.homeip.net"]]), run on kepler.SCHWINGE
 and laplace.SCHWINGE.
 
@@ -1094,8 +1014,8 @@ until these is auto-detected/fixed/ported for GNU Hurd.
 `/include` for GNU Hurd.  Explicit `--enable-multiarch` because *auto check [is
 disabled if] configured with --native-system-header-dir*.
 
-This takes up around 4.8 GiB, and runs for [[4 h 46 min|performance#measure]]
-on kepler.SCHWINGE and [[3 h 52 min|performance#measure]] on laplace.SCHWINGE.
+This takes up around 3.9 GiB, and runs for [[3 h 57 min|performance#measure]]
+on kepler.SCHWINGE and [[4 h 37 min|performance#measure]] on laplace.SCHWINGE.
 
 <!--
 
@@ -1166,18 +1086,6 @@ on kepler.SCHWINGE and [[3 h 52 min|performance#measure]] on laplace.SCHWINGE.
         +checking for /proc/self/exe... no
         +checking for /proc/self/maps... no
 
-  * GCJ: `java-signal.h`, `java-signal-aux.h`
-
-        -config.status: linking ../../../hurd/libjava/include/i386-signal.h to include/java-signal.h
-        -config.status: linking ../../../hurd/libjava/include/i386-signal.h to include/java-signal-aux.h
-        +config.status: linking ../../../hurd/libjava/include/default-signal.h to include/java-signal.h
-        +config.status: linking ../../../hurd/libjava/include/default-signal.h to include/java-signal-aux.h
-
-  * GCJ: `jni_md.h`
-
-        -checking jni_md.h support... yes
-        +checking jni_md.h support... configure: WARNING: no
-
   * *default library search path*
 
         -checking for the default library search path... /lib /usr/lib /lib/i386-linux-gnu /usr/lib/i386-linux-gnu /lib/i486-linux-gnu /usr/lib/i486-linux-gnu /usr/local/lib
@@ -1185,40 +1093,6 @@ on kepler.SCHWINGE and [[3 h 52 min|performance#measure]] on laplace.SCHWINGE.
 
     [[binutils]] issue?  Should be aligned by Samuel's binutils patch.
 
-  * `./classpath/[...]/*.properties`
-
-    Just different order of files, or another problem?
-
-  * `libjava/gnu/gcj/util/natGCInfo.cc`
-
-         libtool: compile:  [...]/hurd/master.build/./gcc/xgcc [...] -c ../../../master/libjava/gnu/gcj/util/natGCInfo.cc [...]
-        +../../../master/libjava/gnu/gcj/util/natGCInfo.cc:440:1: warning: unused parameter 'name' [-Wunused-parameter]
-        +../../../master/libjava/gnu/gcj/util/natGCInfo.cc:446:1: warning: unused parameter 'name' [-Wunused-parameter]
-        +../../../master/libjava/gnu/gcj/util/natGCInfo.cc:452:1: warning: unused parameter 'name' [-Wunused-parameter]
-
-  * `libgcj.la`
-
-    Just different order of object files, or another problem?
-
-    Is there a pattern that GNU/Hurd hands out the files alphabetically sorted
-    where it wouldn't need to ([[!taglink open_issue_hurd]])?
-
-  * `libjvm.la`, `.libs/libjvm.so`, `libgij.la`, `.libs/libgij.so.12.0.0`
-
-    `-Wl,-Bsymbolic` vs. `-Wl,-Bsymbolic-functions`
-
-  * `jar`
-
-         make[2]: Entering directory `[...]/hurd/master.build/[ARCH]/libjava'
-        -: make ; exec make "AR_FLAGS=rc" [...] "RANLIB=ranlib" "DESTDIR=" "JAR=[...]/hurd/master.build/[ARCH]/libjava/scripts/jar" DO=all multi-do
-        +: make ; exec make "AR_FLAGS=rc" [...] "RANLIB=ranlib" "DESTDIR=" "JAR=jar" DO=all multi-do
-
-    Probably because kepler.SCHWINGE has an OpenJDK `/usr/bin/jar`, and
-    laplace.SCHWINGE a GCJ one.
-    2013-12-01: Yes: uninstalled OpenJDK on kepler.SCHWINGE, and it changed to
-    `JAR=jar`.
-    There are other instances of this in the following.
-
   * `value-unwind.h`
 
         -DEFINES='' HEADERS='../../../master/libgcc/config/i386/value-unwind.h' \
@@ -1258,8 +1132,8 @@ on kepler.SCHWINGE and [[3 h 52 min|performance#measure]] on laplace.SCHWINGE.
     $ make install 2>&1 | tee log_install
     [...]
 
-This takes up around 1.4 GiB, and runs for [[2 min|performance#measure]] on
-kepler.SCHWINGE and [[5 min|performance#measure]] on laplace.SCHWINGE.
+This takes up around 0.9 GiB, and runs for [[1 min|performance#measure]] on
+kepler.SCHWINGE and [[3 min|performance#measure]] on laplace.SCHWINGE.
 
 
 ## Analysis
@@ -1270,12 +1144,6 @@ kepler.SCHWINGE and [[5 min|performance#measure]] on laplace.SCHWINGE.
 
     [[libtool]].
 
-  * `libjvm.la`, `.libs/libjvm.so`, `libgij.la`, `.libs/libgij.so.12.0.0`
-
-    `-Wl,-Bsymbolic` vs. `-Wl,-Bsymbolic-functions` (as above)
-
-  * `jar`: as above.
-
 
 # Testsuite
 
@@ -1284,7 +1152,7 @@ kepler.SCHWINGE and [[5 min|performance#measure]] on laplace.SCHWINGE.
     $ make -k check 2>&1 | tee log_test
     [...]
 
-This runs for [[5 h 49 min|performance#measure]] on kepler.SCHWINGE and [[10 h
+This runs for [[5 h 43 min|performance#measure]] on kepler.SCHWINGE and [[12 h
 36 min|performance#measure]] on laplace.SCHWINGE.
 
 
@@ -1401,54 +1269,6 @@ This runs for [[5 h 49 min|performance#measure]] on kepler.SCHWINGE and [[10 h
 
     All have basically the same backtrace.  TODO.
 
-  * `[ARCH]/libjava`
-
-    A few of the `Thread_Sleep_2 output` tests FAIL (intermittently):
-
-        FAIL: Thread_Sleep_2 [...] output - source compiled test
-
-    That is because of:
-
-        spawn [open ...]
-        failed, iteration 1, time 9950000ns
-        failed, iteration 3, time 9950000ns
-        failed, iteration 5, time 9950000ns
-        failed, iteration 7, time 9950000ns
-        failed, iteration 9, time 9950000ns
-        failed, iteration 11, time 9950000ns
-        [...]
-
-    Source code is probably libjava.lang/Thread_Sleep_2.java:
-
-              for (int i = 0; i < 100; i++)
-                { 
-                  long start = System.nanoTime();
-                  Thread.sleep(10);
-                  long end = System.nanoTime();
-                  if ((end - start) < 10000000)
-                    { 
-                      System.out.print ("failed, iteration ");
-                      System.out.print (i);
-                      System.out.print (", time ");
-                      System.out.print (end - start);
-                      System.out.println ("ns");
-
-    TODO.
-
-        spawn [open ...]
-        1
-        FAIL: Throw_2 execution - source compiled test
-        UNTESTED: Throw_2 output - source compiled test
-
-        FAIL: Throw_2 -findirect-dispatch execution - source compiled test
-        UNTESTED: Throw_2 -findirect-dispatch output - source compiled test
-        FAIL: Throw_2 -O3 execution - source compiled test
-        UNTESTED: Throw_2 -O3 output - source compiled test
-        FAIL: Throw_2 -O3 -findirect-dispatch execution - source compiled test
-        UNTESTED: Throw_2 -O3 -findirect-dispatch output - source compiled test
-
-    TODO.
-
   * `[ARCH]/libstdc++-v3`
 
         FAIL: libstdc++-abi/abi_check
@@ -2757,9 +2577,6 @@ This runs for [[5 h 49 min|performance#measure]] on kepler.SCHWINGE and [[10 h
 
     [[!message-id "8737sjzp89.fsf@kepler.schwinge.homeip.net"]].
 
-  * libjava testing is broken on kepler.SCHWINGE because of [[!GCC_PR 70719
-    desc="the libjava testsuite does not work with dejagnu 1.6"]].
-
 
 ## Enhancements
 
diff --git a/open_issues/gnat.mdwn b/open_issues/gnat.mdwn
index 95e9d1a4..1ab0866f 100644
--- a/open_issues/gnat.mdwn
+++ b/open_issues/gnat.mdwn
@@ -120,7 +120,9 @@ bigger Ada code bases, or any Ada testsuites.
 
 [[!message-id "1456875776.5852.194.camel@gmail.com"]].
 GCC trunk r234252.
-Still incomplete.
+`gcc/ada/s-osinte-gnu.adb`: r235467 (on trunk)/r235468 (on gcc-6-branch).
+`getpagesize` patch: r235896 (on trunk)/r235897 (on gcc-6-branch).
+Still incomplete?  (Changes to generic files?)
 
 
 ## `getcontext`/`makecontext`/`setcontext`/`swapcontext` usage analysis