open_issues/gcc: Cilk Plus, and Intel MPX support have been removed in GCC trunk

1 files changed, 5 insertions, 136 deletions

diff --git a/open_issues/gcc.mdwn b/open_issues/gcc.mdwn
index 194a401a..44dc3a9e 100644
--- a/open_issues/gcc.mdwn
+++ b/open_issues/gcc.mdwn
@@ -1,5 +1,5 @@
 [[!meta copyright="Copyright © 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014,
-2015, 2016 Free Software Foundation, Inc."]]
+2015, 2016, 2018 Free Software Foundation, Inc."]]
 
 [[!meta license="""[[!toggle id="license" text="GFDL 1.2+"]][[!toggleable
 id="license" text="Permission is granted to copy, distribute and/or modify this
@@ -750,139 +750,6 @@ Last reviewed up to the Git mirror's commit
 
       * `libvtv/vtv_rts.cc`: `/proc/self/exe` usage, `PATH_MAX`.
 
-  * `libcilkrts`
-
-    Disabled for Hurd.
-
-    libcilkrts/Makefile.am:
-
-        +# If we're building on Linux, use the Linux version script
-        +if LINUX_LINKER_SCRIPT
-        +    libcilkrts_la_LDFLAGS += -Wl,--version-script,$(srcdir)/runtime/linux-symbols.ver
-        +endif
-
-    libcilkrts/configure.ac:
-
-        +# We have linker scripts for appropriate operating systems
-        +linux_linker_script=no
-        +case "${host}" in
-        +    *-*-linux*)
-        +        linux_linker_script=yes
-        +        ;;
-        +esac
-        +AM_CONDITIONAL(LINUX_LINKER_SCRIPT, test "$linux_linker_script" = "yes")
-
-    libcilkrts/runtime/cilk_malloc.c:
-
-        +#if defined _WIN32 || defined _WIN64 || defined __linux__
-        +#include <malloc.h>
-        +#define HAS_MEMALIGN 1
-        +#endif
-
-    libcilkrts/runtime/config/x86/cilk-abi-vla.c:
-
-        +#if defined(__x86_64)
-        +    // For Intel64 linux & MACH ABI, all the parameters were passed in
-        +    // register, so top of the stack frame above the return address
-        +    // is just the size of the return address plus
-        +    // distance_from_sp_to_alloca_area on the chance that the alloca
-        +    // area isn't at the very bottom of the calling functions stack.
-        +#elif defined(__MACH__)
-        +    // For ia32 MACH, parameter size is always a mutliple of 16
-        +    // bytes to keep the stack 16 byte aligned.  So we need to round
-        +    // number of parameters up to multiple of 4.
-        +    param_size = 8 * sizeof(char *);
-        +#else
-        +    // For both windows Intel64 ABI, and the IA32 windows and
-        +    // linux ABIs, space is reserved on the stack for all these
-        +    // parameters.  param_size is 5 * size of a stack slot.
-        +    param_size = 5 * sizeof(char *);
-        +#endif
-
-        +#if defined(__x86_64)
-        +            // For Intel64 linux & MACH ABI, all the parameters were passed in
-        +            // register, so top of the stack frame above the return address
-        +            // is just the size of the return address plus
-        +            // distance_from_sp_to_alloca_area on the chance that the alloca
-        +            // area isn't at the very bottom of the calling functions stack.
-        +#elif defined(__MACH__)
-        +            // For ia32 MACH, parameter size is always a mutliple of 16
-        +            // bytes to keep the stack 16 byte aligned.  So we need to round
-        +            // number of parameters up to multiple of 4.
-        +            param_size = 8 * sizeof(char *);
-        +#else
-        +            // For both windows Intel64 ABI, and the IA32 windows and
-        +            // linux ABIs, space is reserved on the stack for all these
-        +            // parameters.  param_size is 5 * size of a stack slot.
-        +            param_size = 6 * sizeof(char *);
-        +#endif
-
-    libcilkrts/runtime/os-unix.c:
-
-        +#ifdef __linux__
-        +    // define _GNU_SOURCE before *any* #include.
-        +    // Even <stdint.h> will break later #includes if this macro is not
-        +    // already defined when it is #included.
-        +#   define _GNU_SOURCE
-        +#endif
-
-        +#if defined __linux__
-        +#   include <sys/sysinfo.h>
-        +#   include <sys/syscall.h>
-
-    Syscall usage outside __linux__?
-
-    Will run into:
-
-        +#else
-        +#error "Unknown architecture"
-
-    libcilkrts/runtime/sysdep-unix.c:
-
-        +#ifdef __linux__
-        +    // define _GNU_SOURCE before *any* #include.
-        +    // Even <stdint.h> will break later #includes if this macro is not
-        +    // already defined when it is #included.
-        +#   define _GNU_SOURCE
-        +#endif
-
-        +#ifdef __linux__
-        +#   include <sys/resource.h>
-        +#   include <sys/sysinfo.h>
-        +#endif
-
-        +#if defined( __linux__) || defined(__VXWORKS__)
-        +    pthread_t tid = *(pthread_t *)thread_id;
-        +    if (i < 0 || i > g->total_workers)
-        +        return 0;
-        +    return g->sysdep->threads[i] == tid;
-        +#else
-        +    // Needs to be implemented
-        +    return 0;
-        +#endif
-
-    IRC, freenode, #hurd, 2014-01-10:
-
-        <youpi> bwaarf, libcilkrts in gcc-4.9
-        <p2-mate> libcilkrts?
-        <youpi> the runtime for the cilk language I guess
-        <tschwinge> Yes.  That most likely needs disabling for us.
-        <tschwinge> I'll hve a look eventually.
-        <tschwinge> As soon as I get
-          <http://news.gmane.org/find-root.php?message_id=%3C87wqjjo5kx.fsf%40kepler.schwinge.homeip.net%3E>
-          resolved, actually.
-
-    [[!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.
-
-        gcc/config/i386/linux-common.h:MPX_SPEC
-
   * `PIE_SPEC`
 
         diff --git ./gcc/config/gnu-user.h ./gcc/config/gnu-user.h
@@ -1007,8 +874,10 @@ and laplace.SCHWINGE.
 
 Different hosts may default to different shells and compiler versions; thus
 harmonized.
-`--disable-libcilkrts`,
-`--disable-libmpx`,
+`--disable-libcilkrts` (obsolete, Cilk Plus support removed in trunk r255195,
+2017-11-28),
+`--disable-libmpx` (obsolete, Intel MPX support removed in trunk r261304,
+2018-06-08),
 `--disable-libsanitizer`,
 `--disable-libvtv`,
 until these is auto-detected/fixed/ported for GNU Hurd.