system/gcc: bump to 8.3.0

These patches have been forward-ported to 8:
    002_all_default-relro.patch
    005_all_default-as-needed.patch
    011_all_default-warn-format-security.patch
    012_all_default-warn-trampolines.patch

We are no longer using fortify-headers, so these patches are no longer needed:
    003_all_default-fortify-source.patch
    050_all_libiberty-asprintf.patch
    053_all_libitm-no-fortify-source.patch

These patches no longer appear necessary:
    067_all_gcc-poison-system-directories.patch
    090_all_pr55930-dependency-tracking.patch
    201-cilkrts.patch
    203-libgcc_s.patch
    207-static-pie.patch

These patches have already been applied upstream:
    204-linux_libc_has_function.patch
    332-gccgo-remove-ustat.patch
    ada-aarch64-multiarch.patch
    ada-fixes.patch
    boehm-gc-musl.patch
    fix-rs6000-pie.patch
    gcc-4.8-build-args.patch
    lra-pentium.patch

These patches are no longer necessary because GCJ has been removed:
    310-build-gcj-s390x.patch
    fix-gcj-iconv-musl.patch
    fix-gcj-musl.patch
    fix-gcj-stdgnu14-link.patch

The rest of the changes are updates from nsz's patchset.

1 files changed, 42 insertions, 0 deletions

diff --git a/system/gcc/0002-posix_memalign.patch b/system/gcc/0002-posix_memalign.patch
new file mode 100644
index 000000000..874f49b9b
--- /dev/null
+++ b/system/gcc/0002-posix_memalign.patch
@@ -0,0 +1,42 @@
+From 65eb86f3e110998d30489df009d44b4bc1043adc Mon Sep 17 00:00:00 2001
+From: Szabolcs Nagy <nsz@port70.net>
+Date: Fri, 26 Jan 2018 20:32:50 +0000
+Subject: [PATCH 02/12] posix_memalign
+
+---
+ gcc/config/i386/pmm_malloc.h | 9 +++++----
+ 1 file changed, 5 insertions(+), 4 deletions(-)
+
+diff --git a/gcc/config/i386/pmm_malloc.h b/gcc/config/i386/pmm_malloc.h
+index ffbb7f82cf5..b0b890d2403 100644
+--- a/gcc/config/i386/pmm_malloc.h
++++ b/gcc/config/i386/pmm_malloc.h
+@@ -27,12 +27,13 @@
+ #include <stdlib.h>
+ 
+ /* We can't depend on <stdlib.h> since the prototype of posix_memalign
+-   may not be visible.  */
++   may not be visible and we can't pollute the namespace either.  */
+ #ifndef __cplusplus
+-extern int posix_memalign (void **, size_t, size_t);
++extern int _mm_posix_memalign (void **, size_t, size_t)
+ #else
+-extern "C" int posix_memalign (void **, size_t, size_t) throw ();
++extern "C" int _mm_posix_memalign (void **, size_t, size_t) throw ()
+ #endif
++__asm__("posix_memalign");
+ 
+ static __inline void *
+ _mm_malloc (size_t __size, size_t __alignment)
+@@ -42,7 +43,7 @@ _mm_malloc (size_t __size, size_t __alignment)
+     return malloc (__size);
+   if (__alignment == 2 || (sizeof (void *) == 8 && __alignment == 4))
+     __alignment = sizeof (void *);
+-  if (posix_memalign (&__ptr, __alignment, __size) == 0)
++  if (_mm_posix_memalign (&__ptr, __alignment, __size) == 0)
+     return __ptr;
+   else
+     return NULL;
+-- 
+2.17.1
+