community/rethinkdb: enable build on ppc64le

Enable build on ppc64le backporting patches that enable rethinkdb
support on ppc64le and making necessary changes to build it.
This patch is a temporary solution until rethinkdb 2.4 release.

2 files changed, 339 insertions, 2 deletions

diff --git a/community/rethinkdb/APKBUILD b/community/rethinkdb/APKBUILD
index 51a55ba121..c02b6a9b05 100644
--- a/community/rethinkdb/APKBUILD
+++ b/community/rethinkdb/APKBUILD
@@ -2,10 +2,10 @@
 # Maintainer: Daniel Treadwell <daniel@djt.id.au>
 pkgname=rethinkdb
 pkgver=2.3.6
-pkgrel=0
+pkgrel=1
 pkgdesc="Distributed powerful and scalable NoSQL database"
 url="http://www.rethinkdb.com"
-arch="x86_64"
+arch="x86_64 ppc64le"
 license="ASL 2.0"
 depends=""
 makedepends="bash python2 linux-headers bsd-compat-headers m4 paxmark
@@ -18,6 +18,7 @@ subpackages="$pkgname-doc"
 source="http://download.rethinkdb.com/dist/$pkgname-$pkgver.tgz
 	libressl.patch
 	paxmark.patch
+	enable-build-ppc64le.patch
 	rethinkdb.initd
 	rethinkdb.confd
 	"
@@ -68,5 +69,6 @@ doc() {
 sha512sums="653177750f7439fa1d61a121e488d578be1eab90f87c7d17ad52b9793d8543f22bbe98f8d501c2ab2d7048c65118096430fe7bde945d87c7a3228905af801af2  rethinkdb-2.3.6.tgz
 9ff727feedc7a9f58e7bf8554dc26e32ebca259b2d5d75ff0d064f5aea7a54c9c94fab16b83a3bc4039d4ae6d6d805d7b129ab9d5f762186d0388adeeff6e67c  libressl.patch
 c5a7905c116a2bf7af5ce5f8e6536c61e06ee9ac7cbead0358396e0989141890908eab694f4a88f0dcaf9f4ddcefe751dc7a949cbb4c870d87f61e720ef3b45a  paxmark.patch
+63e9b4c145617a91d00c78c980937c4f4dc010c7bc4a8db8d7ecaad47dbecd0333fcaadbfe0251dee50f44494e802db5322d8cc0096cf614f44fd4069e82f8ac  enable-build-ppc64le.patch
 c27e21073048bd5e8e2ec91303b43ce873748573e2b44ba28ee57ca1b3080afb67e56880b6a6da7a0abf4f2967dce45aa27fe8d6dd44b70d874d776e876ef132  rethinkdb.initd
 3a07f9c78ef96b2ca37fca508ee14a644d3c08612f662ba5260182fbfcceba064d20253f1261f56dc0a2c28d1a4d5e2320872c3c4e7595cb7ab4e202eb28ad42  rethinkdb.confd"
diff --git a/community/rethinkdb/enable-build-ppc64le.patch b/community/rethinkdb/enable-build-ppc64le.patch
new file mode 100644
index 0000000000..7b51c562dc
--- /dev/null
+++ b/community/rethinkdb/enable-build-ppc64le.patch
@@ -0,0 +1,335 @@
+Temporary patch to enable rethinkdb build on ppc64le 
+until rethinkdb 2.4 release.
+
+* Changes:
+
+Files: configure, blocker_pool.cc, context_switching.cc, build.mk, args.hpp, cluster.cc
+Changes were backported from rethinkdb to add support for ppc64le
+
+Files: v8.sh
+Backported changes to enable v8 build on ppc64le (as version 3.30.33.16 did not have support)
+
+Files: js_job.cc
+Changes related with upgrade of v8 on ppc64le and API break
+
+----------
+--- ./configure
++++ ./configure
+@@ -84,6 +84,8 @@
+         arm*)
+             var_append LDFLAGS -ldl
+             final_warning="ARM support is still experimental" ;;
++	ppc64le|powerpc64le|powerpc64el)
++	    final_warning="PowerPC support is still experimental" ;;
+         *)
+             error "unsupported architecture: $MACHINE"
+     esac
+--- ./src/arch/io/blocker_pool.cc
++++ ./src/arch/io/blocker_pool.cc
+@@ -93,12 +93,19 @@
+ 
+         // The coroutine stack size should be enough for blocker pool stacks.  Right
+         // now that's 128 KB.
++        #if defined (__powerpc64__)
++            static_assert(COROUTINE_STACK_SIZE == 262144,
++                      "Expecting COROUTINE_STACK_SIZE to be 262144.  If you changed "
++                      "it, please double-check whether the value is appropriate for "
++                      "blocker pool threads.");
++	#else
+         static_assert(COROUTINE_STACK_SIZE == 131072,
+                       "Expecting COROUTINE_STACK_SIZE to be 131072.  If you changed "
+                       "it, please double-check whether the value is appropriate for "
+                       "blocker pool threads.");
+         // Disregard failure -- we'll just use the default stack size if this somehow
+         // fails.
++	#endif
+         UNUSED int ignored_res = pthread_attr_setstacksize(&attr, COROUTINE_STACK_SIZE);
+ 
+         res = pthread_create(&threads[i], &attr,
+--- ./src/arch/runtime/context_switching.cc
++++ ./src/arch/runtime/context_switching.cc
+@@ -101,6 +101,8 @@
+ #elif defined(__arm__)
+     /* We must preserve r4, r5, r6, r7, r8, r9, r10, and r11. Because we have to store the LR (r14) in swapcontext as well, we also store r12 in swapcontext to keep the stack double-word-aligned. However, we already accounted for both of those by decrementing sp twice above (once for r14 and once for r12, say). */
+     sp -= 8;
++#elif defined (__powerpc64__)
++    sp -= 20; // r14-r31, toc, cr.
+ #else
+ #error "Unsupported architecture."
+ #endif
+@@ -262,7 +264,7 @@
+ }
+ 
+ asm(
+-#if defined(__i386__) || defined(__x86_64__) || defined(__arm__)
++#if defined(__i386__) || defined(__x86_64__) || defined(__arm__) || defined (__powerpc64__)
+ // We keep the i386, x86_64, and ARM stuff interleaved in order to enforce commonality.
+ #if defined(__x86_64__)
+ #if defined(__LP64__) || defined(__LLP64__)
+@@ -281,6 +283,8 @@
+     /* `current_pointer_out` is in `%rdi`. `dest_pointer` is in `%rsi`. */
+ #elif defined(__arm__)
+     /* `current_pointer_out` is in `r0`. `dest_pointer` is in `r1` */
++#elif defined(__powerpc64__)
++    /* `current_pointer_out` is in `r3`. `dest_pointer` is in `r4` */
+ #endif
+ 
+     /* Save preserved registers (the return address is already on the stack). */
+@@ -302,6 +306,31 @@
+     "push {r12}\n"
+     "push {r14}\n"
+     "push {r4-r11}\n"
++#elif defined(__powerpc64__)
++    "addi 1, 1, -(21*8)\n"
++    "std 2, (8*0)(1)\n"
++    "std 14, (8*1)(1)\n"
++    "std 15, (8*2)(1)\n"
++    "std 16, (8*3)(1)\n"
++    "std 17, (8*4)(1)\n"
++    "std 18, (8*5)(1)\n"
++    "std 19, (8*6)(1)\n"
++    "std 20, (8*7)(1)\n"
++    "std 21, (8*8)(1)\n"
++    "std 22, (8*9)(1)\n"
++    "std 23, (8*10)(1)\n"
++    "std 24, (8*11)(1)\n"
++    "std 25, (8*12)(1)\n"
++    "std 26, (8*13)(1)\n"
++    "std 27, (8*14)(1)\n"
++    "std 28, (8*15)(1)\n"
++    "std 29, (8*16)(1)\n"
++    "std 30, (8*17)(1)\n"
++    "std 31, (8*18)(1)\n"
++    "mfcr 0\n"
++    "std 0, (8*19)(1)\n"
++    "mflr 0\n"
++    "std 0, (8*20)(1)\n"
+ #endif
+ 
+     /* Save old stack pointer. */
+@@ -316,6 +345,8 @@
+ #elif defined(__arm__)
+     /* On ARM, the first argument is in `r0`. `r13` is the stack pointer. */
+     "str r13, [r0]\n"
++#elif defined(__powerpc64__)
++    "std  1, 0(3)\n"
+ #endif
+ 
+     /* Load the new stack pointer and the preserved registers. */
+@@ -330,6 +361,8 @@
+ #elif defined(__arm__)
+     /* On ARM, the second argument is in `r1` */
+     "mov r13, r1\n"
++#elif defined(__powerpc64__)
++    "mr 1, 4\n"
+ #endif
+ 
+ #if defined(__i386__)
+@@ -348,6 +381,31 @@
+     "pop {r4-r11}\n"
+     "pop {r14}\n"
+     "pop {r12}\n"
++#elif defined(__powerpc64__)
++    "ld 2, (8*0)(1)\n"
++    "ld 14, (8*1)(1)\n"
++    "ld 15, (8*2)(1)\n"
++    "ld 16, (8*3)(1)\n"
++    "ld 17, (8*4)(1)\n"
++    "ld 18, (8*5)(1)\n"
++    "ld 19, (8*6)(1)\n"
++    "ld 20, (8*7)(1)\n"
++    "ld 21, (8*8)(1)\n"
++    "ld 22, (8*9)(1)\n"
++    "ld 23, (8*10)(1)\n"
++    "ld 24, (8*11)(1)\n"
++    "ld 25, (8*12)(1)\n"
++    "ld 26, (8*13)(1)\n"
++    "ld 27, (8*14)(1)\n"
++    "ld 28, (8*15)(1)\n"
++    "ld 29, (8*16)(1)\n"
++    "ld 30, (8*17)(1)\n"
++    "ld 31, (8*18)(1)\n"
++    "ld 0, (8*19)(1)\n"
++    "mtcr 0\n"
++    "ld 0, (8*20)(1)\n"
++    "mtlr 0\n"
++    "addi 1, 1, (8*21)\n"
+ #endif
+ 
+ #if defined(__i386__) || defined(__x86_64__)
+@@ -360,6 +418,8 @@
+     /* Above, we popped `LR` (`r14`) off the stack, so the bx instruction will
+     jump to the correct return address. */
+     "bx r14\n"
++#elif defined(__powerpc64__)
++    "blr\n"
+ #endif
+ 
+ #else
+--- ./src/build.mk
++++ ./src/build.mk
+@@ -54,6 +54,10 @@
+
+   ifeq ($(OS),Linux)
+     RT_LDFLAGS += -Wl,--no-as-needed
++    ifeq ($(GCC_ARCH),ppc64le)
++      RT_CXXFLAGS += "-DV8_NEEDS_BUFFER_ALLOCATOR"
++      RT_LDFLAGS += -no-pie
++    endif
+   endif
+
+   ifeq ($(STATICFORCE),1)
+@@ -167,7 +171,11 @@
+ else # ifeq ($(DEBUG),1)
+   # use -fno-strict-aliasing to not break things
+   # march=native used to break the serializer
+-  RT_CXXFLAGS += -O3 -DNDEBUG -fno-strict-aliasing # -march=native
++  ifeq ($(GCC_ARCH),ppc64le)
++    RT_CXXFLAGS += -O1 -DNDEBUG -fno-strict-aliasing
++  else
++    RT_CXXFLAGS += -O3 -DNDEBUG -fno-strict-aliasing # -march=native
++  endif
+   ifeq ($(NO_OMIT_FRAME_POINTER),1)
+     RT_CXXFLAGS += -fno-omit-frame-pointer
+   endif
+--- ./src/config/args.hpp
++++ ./src/config/args.hpp
+@@ -151,7 +151,11 @@
+ // block infos.
+ #define LBA_RECONSTRUCTION_BATCH_SIZE             1024
+ 
++#if defined (__powerpc64__)
++#define COROUTINE_STACK_SIZE                      262144
++#else
+ #define COROUTINE_STACK_SIZE                      131072
++#endif
+ 
+ 
+ /**
+--- ./src/rpc/connectivity/cluster.cc
++++ ./src/rpc/connectivity/cluster.cc
+@@ -103,7 +103,7 @@
+     return false;
+ }
+ 
+-#if defined (__x86_64__) || defined (_WIN64)
++#if defined (__x86_64__) || defined (_WIN64) || defined (__powerpc64__)
+ const std::string connectivity_cluster_t::cluster_arch_bitsize("64bit");
+ #elif defined (__i386__) || defined(__arm__)
+ const std::string connectivity_cluster_t::cluster_arch_bitsize("32bit");
+--- ./mk/support/pkg/v8.sh
++++ ./mk/support/pkg/v8.sh
+@@ -1,13 +1,44 @@
+-
+-version=3.30.33.16-patched2
+ # See http://omahaproxy.appspot.com/ for the current stable/beta/dev versions of v8
+ 
+-src_url=http://commondatastorage.googleapis.com/chromium-browser-official/v8-${version/-patched2/}.tar.bz2
++ARCH=`uname -m`
+ 
++if [[ "$ARCH" == "ppc64le" ]]; then
++    # 4.7 has no source distribution, making it harder to build on Linux
++    version=4.7.80.23
++
++    pkg_fetch () {
++        pkg_make_tmp_fetch_dir
++
++        # These steps are inspired by the official docs:
++        # https://github.com/v8/v8/wiki/Using%20Git
++        # with a few additional steps to get an exact version instead of HEAD
++        git clone --depth 1 https://chromium.googlesource.com/chromium/tools/depot_tools.git "$tmp_dir/depot_tools"
++        PATH="$tmp_dir/depot_tools:$PATH"
++        in_dir "$tmp_dir" gclient config --unmanaged https://chromium.googlesource.com/v8/v8.git
++        in_dir "$tmp_dir" git clone https://chromium.googlesource.com/v8/v8.git
++        v8_commit=`in_dir "$tmp_dir/v8" git rev-parse refs/tags/$version`
++        in_dir "$tmp_dir" gclient sync --revision v8@$v8_commit || true
++        find "$tmp_dir" -depth -name .git -exec rm -rf {} \;
++        rm -rf "$src_dir"
++        mv "$tmp_dir/v8" "$src_dir"
++
++	sed -i "s/ucontext->uc_mcontext.regs->nip/ucontext->uc_mcontext.gp_regs[32]/g" "$src_dir/src/profiler/sampler.cc"
++	sed -i "s/ucontext->uc_mcontext.regs->gpr\[PT_R1\]/ucontext->uc_mcontext.gp_regs[1]/g" "$src_dir/src/profiler/sampler.cc"
++        sed -i "s/ucontext->uc_mcontext.regs->gpr\[PT_R31\]/ucontext->uc_mcontext.gp_regs[31]/g" "$src_dir/src/profiler/sampler.cc"
++
++        pkg_remove_tmp_fetch_dir
++    }
++else
++    version=3.30.33.16-patched2
++    src_url=http://commondatastorage.googleapis.com/chromium-browser-official/v8-${version/-patched2/}.tar.bz2
++fi
++
+ pkg_install-include () {
+     pkg_copy_src_to_build
+-    in_dir "$build_dir" patch -fp1 < "$pkg_dir"/patch/v8_2-HandleScope-protected.patch
+-    
++    if [[ "$ARCH" != "ppc64le" ]]; then
++        in_dir "$build_dir" patch -fp1 < "$pkg_dir"/patch/v8_2-HandleScope-protected.patch
++    fi
++
+     rm -rf "$install_dir/include"
+     mkdir -p "$install_dir/include"
+     cp -RL "$build_dir/include/." "$install_dir/include"
+@@ -29,7 +60,10 @@
+ 
+ pkg_install () {
+     pkg_copy_src_to_build
+-    in_dir "$build_dir" patch -fp1 < "$pkg_dir"/patch/v8_2-HandleScope-protected.patch
++
++    if [[ "$ARCH" != "ppc64le" ]]; then
++        in_dir "$build_dir" patch -fp1 < "$pkg_dir"/patch/v8_2-HandleScope-protected.patch
++    fi
+     sed -i.bak '/unittests/d;/cctest/d' "$build_dir/build/all.gyp" # don't build the tests
+     mkdir -p "$install_dir/lib"
+     if [[ "$OS" = Darwin ]]; then
+@@ -44,6 +78,7 @@
+         i?86)   arch=ia32 ;;
+         x86_64) arch=x64 ;;
+         arm*)   arch=arm; arch_gypflags=$raspberry_pi_gypflags ;;
++        ppc64le*|powerpc*) arch=ppc64 ;;
+         *)      arch=native ;;
+     esac
+     mode=release
+@@ -58,10 +93,21 @@
+ pkg_link-flags () {
+     # These are the necessary libraries recommended by the docs:
+     # https://developers.google.com/v8/get_started#hello
+-    for lib in libv8_{base,libbase,snapshot,libplatform}; do
+-        echo "$install_dir/lib/$lib.a"
+-    done
+-    for lib in libicu{i18n,uc,data}; do
+-        echo "$install_dir/lib/$lib.a"
+-    done
++    if [[ "$ARCH" == "ppc64le" ]]; then
++        for lib in libv8_{base,libbase,nosnapshot,libplatform}; do
++            echo "$install_dir/lib/$lib.a"
++        done
++        for lib in libicu{i18n,uc,data}; do
++            echo "$install_dir/lib/$lib.a"
++        done
++        echo "-licui18n -licuuc -ldl -lexecinfo"
++
++    else
++        for lib in libv8_{base,libbase,snapshot,libplatform}; do
++            echo "$install_dir/lib/$lib.a"
++        done
++        for lib in libicu{i18n,uc,data}; do
++            echo "$install_dir/lib/$lib.a"
++        done
++    fi
+ }
+--- ./src/extproc/js_job.cc
++++ ./src/extproc/js_job.cc
+files_v8/js_job.cc
+@@ -56,7 +56,12 @@
+     platform.init(v8::platform::CreateDefaultPlatform());
+     v8::V8::InitializePlatform(platform.get());
+     v8::V8::Initialize();
++#ifdef __powerpc64__
++    v8::Isolate::CreateParams params;
++    isolate_ = v8::Isolate::New(params);
++#else
+     isolate_ = v8::Isolate::New();
++#endif
+     isolate_->Enter();
+ }
+