libnss: fix build without int128

Patch retrieved from upstream, more info here:
https://bugzilla.mozilla.org/show_bug.cgi?format=default&id=1459739

Fixes:
 - http://autobuild.buildroot.net/results/093113829d7ce19d578a920e76caa10822774139

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/libnss/0003-Bug-1432455-Build-FStar-c-when-not-building-with-int128-support.patch

@@ -0,0 +1,143 @@
+
+# HG changeset patch
+# User Mike Hommey <mh@glandium.org>
+# Date 1527430800 -7200
+# Node ID 3d3e34bb75172462c7b4bbe7bd5e3e47ed65e464
+# Parent  8e600e2af5bf0c29e88f928471e6aba1a734d05b
+Bug 1432455 - Build FStar.c when not building with int128 support. r=fkiefer
+
+Patch retrieved and slightly updated (to add nss path) from:
+https://hg.mozilla.org/projects/nss/rev/3d3e34bb75172462c7b4bbe7bd5e3e47ed65e464
+
+Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
+
+diff --git a/nss/lib/freebl/Makefile b/nss/lib/freebl/Makefile
+--- a/nss/lib/freebl/Makefile
++++ b/nss/lib/freebl/Makefile
+@@ -530,22 +530,26 @@ ifndef NSS_DISABLE_CHACHAPOLY
+     VERIFIED_SRCS += Hacl_Chacha20.c
+     VERIFIED_SRCS += Hacl_Chacha20_Vec128.c
+ endif # NSS_DISABLE_CHACHAPOLY
+ 
+ ifeq (,$(filter-out i386 x386 x86 x86_64 aarch64,$(CPU_ARCH)))
+     # All intel architectures get the 64 bit version
+     # With custom uint128 if necessary (faster than generic 32 bit version).
+     ECL_SRCS += curve25519_64.c
+-    VERIFIED_SRCS += Hacl_Curve25519.c FStar.c
++    VERIFIED_SRCS += Hacl_Curve25519.c
+ else
+     # All non intel architectures get the generic 32 bit implementation (slow!)
+     ECL_SRCS += curve25519_32.c
+ endif
+ 
++ifndef HAVE_INT128_SUPPORT
++    VERIFIED_SRCS += FStar.c
++endif
++
+ #######################################################################
+ # (5) Execute "global" rules. (OPTIONAL)                              #
+ #######################################################################
+ 
+ include $(CORE_DEPTH)/coreconf/rules.mk
+ 
+ #######################################################################
+ # (6) Execute "component" rules. (OPTIONAL)                           #
+diff --git a/nss/lib/freebl/freebl.gyp b/nss/lib/freebl/freebl.gyp
+--- a/nss/lib/freebl/freebl.gyp
++++ b/nss/lib/freebl/freebl.gyp
+@@ -272,28 +272,20 @@
+         },
+       }],
+       [ 'cc_use_gnu_ld==1 and OS=="win" and target_arch=="x64"', {
+         # mingw x64
+         'defines': [
+           'MP_IS_LITTLE_ENDIAN',
+          ],
+       }],
+-      [ 'OS!="win"', {
+-        'conditions': [
+-          [ 'target_arch=="x64" or target_arch=="arm64" or target_arch=="aarch64"', {
+-            'defines': [
+-              # The Makefile does version-tests on GCC, but we're not doing that here.
+-              'HAVE_INT128_SUPPORT',
+-            ],
+-          }, {
+-            'defines': [
+-              'KRML_NOUINT128',
+-            ],
+-          }],
++      [ 'have_int128_support==1', {
++        'defines': [
++          # The Makefile does version-tests on GCC, but we're not doing that here.
++          'HAVE_INT128_SUPPORT',
+         ],
+       }, {
+         'defines': [
+           'KRML_NOUINT128',
+         ],
+       }],
+       [ 'OS=="linux"', {
+         'defines': [
+@@ -345,10 +337,23 @@
+             ],
+           }],
+         ],
+       }],
+     ],
+   },
+   'variables': {
+     'module': 'nss',
++    'conditions': [
++      [ 'OS!="win"', {
++        'conditions': [
++          [ 'target_arch=="x64" or target_arch=="arm64" or target_arch=="aarch64"', {
++            'have_int128_support%': 1,
++          }, {
++            'have_int128_support%': 0,
++          }],
++        ],
++      }, {
++        'have_int128_support%': 0,
++      }],
++    ],
+   }
+ }
+diff --git a/nss/lib/freebl/freebl_base.gypi b/nss/lib/freebl/freebl_base.gypi
+--- a/nss/lib/freebl/freebl_base.gypi
++++ b/nss/lib/freebl/freebl_base.gypi
+@@ -55,17 +55,16 @@
+     'rsa.c',
+     'rsapkcs.c',
+     'seed.c',
+     'sha512.c',
+     'sha_fast.c',
+     'shvfy.c',
+     'sysrand.c',
+     'tlsprfalg.c',
+-    'verified/FStar.c',
+   ],
+   'conditions': [
+     [ 'OS=="linux" or OS=="android"', {
+       'conditions': [
+         [ 'target_arch=="x64"', {
+           'sources': [
+             'arcfour-amd64-gas.s',
+             'intel-aes.s',
+@@ -215,13 +214,16 @@
+             'MP_USE_UINT_DIGIT',
+             'MP_ASSEMBLY_MULTIPLY',
+             'MP_ASSEMBLY_SQUARE',
+             'MP_ASSEMBLY_DIV_2DX1D',
+           ],
+         }],
+       ],
+     }],
++    [ 'have_int128_support==0', {
++        'sources': [ 'verified/FStar.c' ],
++    }],
+   ],
+  'ldflags': [
+    '-Wl,-Bsymbolic'
+  ],
+ }
+