gcc: Upgrade 7.2 -> 7.3

The static PIE patch was updated by Juro Bystricky <juro.bystricky@intel.com>
to work with gcc 7.3.

This update from the stable gcc 7 branch includes the retpoline
functionality which is useful to assist with recent security issues.

Two backported patches were dropped as they're included in 7.3.

(From OE-Core rev: a4c1ede6876ad6b84ab2b3bece14bf0afdc9d6b7)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 213 insertions, 0 deletions

diff --git a/meta/recipes-devtools/gcc/gcc-7.3/0036-handle-sysroot-support-for-nativesdk-gcc.patch b/meta/recipes-devtools/gcc/gcc-7.3/0036-handle-sysroot-support-for-nativesdk-gcc.patch
new file mode 100644
index 0000000000..aa0b108275
--- /dev/null
+++ b/meta/recipes-devtools/gcc/gcc-7.3/0036-handle-sysroot-support-for-nativesdk-gcc.patch
@@ -0,0 +1,213 @@
+From ca14820ae834a62ef2b80b283e8f900714636272 Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Mon, 7 Dec 2015 23:39:54 +0000
+Subject: [PATCH 36/47] handle sysroot support for nativesdk-gcc
+
+Being able to build a nativesdk gcc is useful, particularly in cases
+where the host compiler may be of an incompatible version (or a 32
+bit compiler is needed).
+
+Sadly, building nativesdk-gcc is not straight forward. We install
+nativesdk-gcc into a relocatable location and this means that its
+library locations can change. "Normal" sysroot support doesn't help
+in this case since the values of paths like "libdir" change, not just
+base root directory of the system.
+
+In order to handle this we do two things:
+
+a) Add %r into spec file markup which can be used for injected paths
+   such as SYSTEMLIBS_DIR (see gcc_multilib_setup()).
+b) Add other paths which need relocation into a .gccrelocprefix section
+   which the relocation code will notice and adjust automatically.
+
+Upstream-Status: Inappropriate
+RP 2015/7/28
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+ gcc/cppdefault.c | 50 +++++++++++++++++++++++++++++++++++++-------------
+ gcc/cppdefault.h |  3 ++-
+ gcc/gcc.c        | 20 ++++++++++++++------
+ 3 files changed, 53 insertions(+), 20 deletions(-)
+
+diff --git a/gcc/cppdefault.c b/gcc/cppdefault.c
+index c8da0884872..43dc597a0c3 100644
+--- a/gcc/cppdefault.c
++++ b/gcc/cppdefault.c
+@@ -35,6 +35,30 @@
+ # undef CROSS_INCLUDE_DIR
+ #endif
+ 
++static char GPLUSPLUS_INCLUDE_DIRVAR[4096] __attribute__ ((section (".gccrelocprefix"))) = GPLUSPLUS_INCLUDE_DIR;
++static char GCC_INCLUDE_DIRVAR[4096] __attribute__ ((section (".gccrelocprefix"))) = GCC_INCLUDE_DIR;
++static char GPLUSPLUS_TOOL_INCLUDE_DIRVAR[4096] __attribute__ ((section (".gccrelocprefix"))) = GPLUSPLUS_TOOL_INCLUDE_DIR;
++static char GPLUSPLUS_BACKWARD_INCLUDE_DIRVAR[4096] __attribute__ ((section (".gccrelocprefix"))) = GPLUSPLUS_BACKWARD_INCLUDE_DIR;
++static char STANDARD_STARTFILE_PREFIX_2VAR[4096] __attribute__ ((section (".gccrelocprefix"))) = STANDARD_STARTFILE_PREFIX_2 GCC_INCLUDE_SUBDIR_TARGET;
++#ifdef LOCAL_INCLUDE_DIR
++static char LOCAL_INCLUDE_DIRVAR[4096] __attribute__ ((section (".gccrelocprefix"))) = LOCAL_INCLUDE_DIR;
++#endif
++#ifdef PREFIX_INCLUDE_DIR
++static char PREFIX_INCLUDE_DIRVAR[4096] __attribute__ ((section (".gccrelocprefix"))) = PREFIX_INCLUDE_DIR;
++#endif
++#ifdef FIXED_INCLUDE_DIR
++static char FIXED_INCLUDE_DIRVAR[4096] __attribute__ ((section (".gccrelocprefix"))) = FIXED_INCLUDE_DIR;
++#endif
++#ifdef CROSS_INCLUDE_DIR
++static char CROSS_INCLUDE_DIRVAR[4096] __attribute__ ((section (".gccrelocprefix"))) = CROSS_INCLUDE_DIR;
++#endif
++#ifdef TOOL_INCLUDE_DIR
++static char TOOL_INCLUDE_DIRVAR[4096] __attribute__ ((section (".gccrelocprefix"))) = TOOL_INCLUDE_DIR;
++#endif
++#ifdef NATIVE_SYSTEM_HEADER_DIR
++static char NATIVE_SYSTEM_HEADER_DIRVAR[4096] __attribute__ ((section (".gccrelocprefix"))) = NATIVE_SYSTEM_HEADER_DIR;
++#endif
++
+ const struct default_include cpp_include_defaults[]
+ #ifdef INCLUDE_DEFAULTS
+ = INCLUDE_DEFAULTS;
+@@ -42,38 +66,38 @@ const struct default_include cpp_include_defaults[]
+ = {
+ #ifdef GPLUSPLUS_INCLUDE_DIR
+     /* Pick up GNU C++ generic include files.  */
+-    { GPLUSPLUS_INCLUDE_DIR, "G++", 1, 1,
++    { GPLUSPLUS_INCLUDE_DIRVAR, "G++", 1, 1,
+       GPLUSPLUS_INCLUDE_DIR_ADD_SYSROOT, 0 },
+ #endif
+ #ifdef GPLUSPLUS_TOOL_INCLUDE_DIR
+     /* Pick up GNU C++ target-dependent include files.  */
+-    { GPLUSPLUS_TOOL_INCLUDE_DIR, "G++", 1, 1,
++    { GPLUSPLUS_TOOL_INCLUDE_DIRVAR, "G++", 1, 1,
+       GPLUSPLUS_INCLUDE_DIR_ADD_SYSROOT, 1 },
+ #endif
+ #ifdef GPLUSPLUS_BACKWARD_INCLUDE_DIR
+     /* Pick up GNU C++ backward and deprecated include files.  */
+-    { GPLUSPLUS_BACKWARD_INCLUDE_DIR, "G++", 1, 1,
++    { GPLUSPLUS_BACKWARD_INCLUDE_DIRVAR, "G++", 1, 1,
+       GPLUSPLUS_INCLUDE_DIR_ADD_SYSROOT, 0 },
+ #endif
+ #ifdef GCC_INCLUDE_DIR
+     /* This is the dir for gcc's private headers.  */
+-    { GCC_INCLUDE_DIR, "GCC", 0, 0, 0, 0 },
++    { GCC_INCLUDE_DIRVAR, "GCC", 0, 0, 0, 0 },
+ #endif
+ #ifdef GCC_INCLUDE_SUBDIR_TARGET
+     /* This is the dir for gcc's private headers under the specified sysroot.  */
+-    { STANDARD_STARTFILE_PREFIX_2 GCC_INCLUDE_SUBDIR_TARGET, "GCC", 0, 0, 1, 0 },
++    { STANDARD_STARTFILE_PREFIX_2VAR, "GCC", 0, 0, 1, 0 },
+ #endif
+ #ifdef LOCAL_INCLUDE_DIR
+     /* /usr/local/include comes before the fixincluded header files.  */
+-    { LOCAL_INCLUDE_DIR, 0, 0, 1, 1, 2 },
+-    { LOCAL_INCLUDE_DIR, 0, 0, 1, 1, 0 },
++    { LOCAL_INCLUDE_DIRVAR, 0, 0, 1, 1, 2 },
++    { LOCAL_INCLUDE_DIRVAR, 0, 0, 1, 1, 0 },
+ #endif
+ #ifdef PREFIX_INCLUDE_DIR
+-    { PREFIX_INCLUDE_DIR, 0, 0, 1, 0, 0 },
++    { PREFIX_INCLUDE_DIRVAR, 0, 0, 1, 0, 0 },
+ #endif
+ #ifdef FIXED_INCLUDE_DIR
+     /* This is the dir for fixincludes.  */
+-    { FIXED_INCLUDE_DIR, "GCC", 0, 0, 0,
++    { FIXED_INCLUDE_DIRVAR, "GCC", 0, 0, 0,
+       /* A multilib suffix needs adding if different multilibs use
+         different headers.  */
+ #ifdef SYSROOT_HEADERS_SUFFIX_SPEC
+@@ -85,16 +109,16 @@ const struct default_include cpp_include_defaults[]
+ #endif
+ #ifdef CROSS_INCLUDE_DIR
+     /* One place the target system's headers might be.  */
+-    { CROSS_INCLUDE_DIR, "GCC", 0, 0, 0, 0 },
++    { CROSS_INCLUDE_DIRVAR, "GCC", 0, 0, 0, 0 },
+ #endif
+ #ifdef TOOL_INCLUDE_DIR
+     /* Another place the target system's headers might be.  */
+-    { TOOL_INCLUDE_DIR, "BINUTILS", 0, 1, 0, 0 },
++    { TOOL_INCLUDE_DIRVAR, "BINUTILS", 0, 1, 0, 0 },
+ #endif
+ #ifdef NATIVE_SYSTEM_HEADER_DIR
+     /* /usr/include comes dead last.  */
+-    { NATIVE_SYSTEM_HEADER_DIR, NATIVE_SYSTEM_HEADER_COMPONENT, 0, 0, 1, 2 },
+-    { NATIVE_SYSTEM_HEADER_DIR, NATIVE_SYSTEM_HEADER_COMPONENT, 0, 0, 1, 0 },
++    { NATIVE_SYSTEM_HEADER_DIRVAR, NATIVE_SYSTEM_HEADER_COMPONENT, 0, 0, 1, 2 },
++    { NATIVE_SYSTEM_HEADER_DIRVAR, NATIVE_SYSTEM_HEADER_COMPONENT, 0, 0, 1, 0 },
+ #endif
+     { 0, 0, 0, 0, 0, 0 }
+   };
+diff --git a/gcc/cppdefault.h b/gcc/cppdefault.h
+index 17bbb0eaef7..a937ec1d187 100644
+--- a/gcc/cppdefault.h
++++ b/gcc/cppdefault.h
+@@ -33,7 +33,8 @@
+ 
+ struct default_include
+ {
+-  const char *const fname;     /* The name of the directory.  */
++  const char *fname;     /* The name of the directory.  */
++
+   const char *const component; /* The component containing the directory
+                                   (see update_path in prefix.c) */
+   const char cplusplus;                /* Only look here if we're compiling C++.  */
+diff --git a/gcc/gcc.c b/gcc/gcc.c
+index b27245dbf77..e015c77f15f 100644
+--- a/gcc/gcc.c
++++ b/gcc/gcc.c
+@@ -247,6 +247,8 @@ FILE *report_times_to_file = NULL;
+ #endif
+ static const char *target_system_root = DEFAULT_TARGET_SYSTEM_ROOT;
+ 
++static char target_relocatable_prefix[4096] __attribute__ ((section (".gccrelocprefix"))) = SYSTEMLIBS_DIR;
++
+ /* Nonzero means pass the updated target_system_root to the compiler.  */
+ 
+ static int target_system_root_changed;
+@@ -518,6 +520,7 @@ or with constant text in a single argument.
+  %G     process LIBGCC_SPEC as a spec.
+  %R     Output the concatenation of target_system_root and
+         target_sysroot_suffix.
++ %r     Output the base path target_relocatable_prefix
+  %S     process STARTFILE_SPEC as a spec.  A capital S is actually used here.
+  %E     process ENDFILE_SPEC as a spec.  A capital E is actually used here.
+  %C     process CPP_SPEC as a spec.
+@@ -1495,10 +1498,10 @@ static const char *gcc_libexec_prefix;
+    gcc_exec_prefix is set because, in that case, we know where the
+    compiler has been installed, and use paths relative to that
+    location instead.  */
+-static const char *const standard_exec_prefix = STANDARD_EXEC_PREFIX;
+-static const char *const standard_libexec_prefix = STANDARD_LIBEXEC_PREFIX;
+-static const char *const standard_bindir_prefix = STANDARD_BINDIR_PREFIX;
+-static const char *const standard_startfile_prefix = STANDARD_STARTFILE_PREFIX;
++static char standard_exec_prefix[4096] __attribute__ ((section (".gccrelocprefix"))) = STANDARD_EXEC_PREFIX;
++static char standard_libexec_prefix[4096] __attribute__ ((section (".gccrelocprefix"))) = STANDARD_LIBEXEC_PREFIX;
++static char standard_bindir_prefix[4096] __attribute__ ((section (".gccrelocprefix"))) = STANDARD_BINDIR_PREFIX;
++static char *const standard_startfile_prefix = STANDARD_STARTFILE_PREFIX;
+ 
+ /* For native compilers, these are well-known paths containing
+    components that may be provided by the system.  For cross
+@@ -1506,9 +1509,9 @@ static const char *const standard_startfile_prefix = STANDARD_STARTFILE_PREFIX;
+ static const char *md_exec_prefix = MD_EXEC_PREFIX;
+ static const char *md_startfile_prefix = MD_STARTFILE_PREFIX;
+ static const char *md_startfile_prefix_1 = MD_STARTFILE_PREFIX_1;
+-static const char *const standard_startfile_prefix_1
++static char standard_startfile_prefix_1[4096] __attribute__ ((section (".gccrelocprefix")))
+   = STANDARD_STARTFILE_PREFIX_1;
+-static const char *const standard_startfile_prefix_2
++static char standard_startfile_prefix_2[4096] __attribute__ ((section (".gccrelocprefix")))
+   = STANDARD_STARTFILE_PREFIX_2;
+ 
+ /* A relative path to be used in finding the location of tools
+@@ -5826,6 +5829,11 @@ do_spec_1 (const char *spec, int inswitch, const char *soft_matched_part)
+              }
+            break;
+ 
++          case 'r':
++              obstack_grow (&obstack, target_relocatable_prefix,
++                     strlen (target_relocatable_prefix));
++            break;
++
+          case 'S':
+            value = do_spec_1 (startfile_spec, 0, NULL);
+            if (value != 0)
+-- 
+2.12.2
+