[MIPS] Implementation of sel_ldr for MIPS architecture.

pnacl/build.sh

 #!/bin/bash
 # Copyright (c) 2012 The Native Client Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 #
 #@                 Untrusted Toolchain Manager
 #@-------------------------------------------------------------------
 #@ This script builds the ARM and PNaCl untrusted toolchains.
 #@ It MUST be run from the native_client/ directory.
 ######################################################################
@@ skipping 25 matching lines @@
 readonly NACL_ROOT="$(GetAbsolutePath ..)"
 readonly SCONS_OUT="${NACL_ROOT}/scons-out"
 
 SetScriptPath "${PNACL_ROOT}/build.sh"
 SetLogDirectory "${PNACL_ROOT}/build/log"
 
 # For different levels of make parallelism change this in your env
 readonly PNACL_CONCURRENCY=${PNACL_CONCURRENCY:-8}
 PNACL_PRUNE=${PNACL_PRUNE:-false}
 PNACL_BUILD_ARM=true
+PNACL_BUILD_MIPS=true

[Mark Seaborn, 2012/09/18 03:24:34]

Since PNaCl toolchain-build changes aren't covered by the commit queue (unless,
I think, a given changeset only make changes to the pnacl/ directory), can you
take out the changes to the pnacl/ dir from this change, please, and send them
in a separate change to jvoung + dschuff to review?  (Feel free to CC me on that
separated-out change.)  I'm not the best reviewer for the pnacl/ directory.

[petarj, 2012/09/19 17:27:51]

Removed. I will file a separate CL for this right after.

 
 if ${BUILD_PLATFORM_MAC} || ${BUILD_PLATFORM_WIN}; then
   # We don't yet support building ARM tools for mac or windows.
   PNACL_BUILD_ARM=false
+  PNACL_BUILD_MIPS=true

[Mark Seaborn, 2012/09/18 03:24:34]

Did you mean 'false' here?  If not, this is unnecessary, since this is set to
'true' above.

[petarj, 2012/09/19 17:27:51]

Done.

 fi
 
 readonly SB_JIT=${SB_JIT:-false}
 
 # TODO(pdox): Decide what the target should really permanently be
 readonly CROSS_TARGET_ARM=arm-none-linux-gnueabi
 readonly BINUTILS_TARGET=arm-pc-nacl
 readonly REAL_CROSS_TARGET=le32-unknown-nacl
 readonly NACL64_TARGET=x86_64-nacl
 
@@ skipping 76 matching lines @@
 # Bitcode lib directories (including static bitcode libs and .pso stubs)
 readonly INSTALL_LIB_NEWLIB="${INSTALL_NEWLIB}/lib"
 readonly INSTALL_LIB_GLIBC="${INSTALL_GLIBC}/lib"
 
 # Native nacl lib directories
 # The pattern `${INSTALL_LIB_NATIVE}${arch}' is used in many places.
 readonly INSTALL_LIB_NATIVE="${INSTALL_ROOT}/lib-"
 readonly INSTALL_LIB_ARM="${INSTALL_LIB_NATIVE}arm"
 readonly INSTALL_LIB_X8632="${INSTALL_LIB_NATIVE}x86-32"
 readonly INSTALL_LIB_X8664="${INSTALL_LIB_NATIVE}x86-64"
+readonly INSTALL_LIB_MIPS32="${INSTALL_LIB_NATIVE}mips32"
 
 # PNaCl client-translators (sandboxed) binary locations
 readonly INSTALL_TRANSLATOR="${TOOLCHAIN_ROOT}/pnacl_translator"
 
 
 # The INSTALL_HOST directory has host binaries and libs which
 # are part of the toolchain (e.g. llvm and binutils).
 # There are also tools-x86 and tools-arm which have host binaries which
 # are not part of the toolchain but might be useful in the SDK, e.g.
 # arm sel_ldr and x86-hosted arm/mips validators.
@@ skipping 79 matching lines @@
 # separately, one for each architecture, so that each translator
 # can only target its own architecture.
 #
 # If SBTC_PRODUCTION is false, then we instead use PNaCl to
 # build a `fat` translator which can target all supported
 # architectures. This translator is built as a .pexe
 # which can then be translated to each individual architecture.
 SBTC_PRODUCTION=${SBTC_PRODUCTION:-false}
 
 # Which toolchain to use for each arch.
-SBTC_BUILD_WITH_PNACL="armv7 i686 x86_64"
+SBTC_BUILD_WITH_PNACL="armv7 mips32 i686 x86_64"
 
 # Current milestones in each repo
 
 readonly BINUTILS_REV=95a4e0cd6450
 readonly GOLD_REV=5d1c8d6e094d
 
 # Repositories
 readonly REPO_BINUTILS="nacl-llvm-branches.binutils"
 # NOTE: this is essentially another binutils repo but a much more
 #       recent revision to pull in all the latest gold changes
@@ skipping 1520 matching lines @@
     rm -rf  "${INSTALL_ROOT}/tools-arm"
     mkdir "${INSTALL_ROOT}/tools-arm"
     local sconsdir="${SCONS_OUT}/opt-${SCONS_BUILD_PLATFORM}-arm"
     cp "${sconsdir}/obj/src/trusted/service_runtime/sel_ldr" \
        "${INSTALL_ROOT}/tools-arm"
     spopd
   else
     StepBanner "MISC-TOOLS" "Skipping arm sel_ldr (No trusted arm toolchain)"
   fi
 
+  if ${PNACL_BUILD_MIPS} ; then
+    StepBanner "MISC-TOOLS" "Building sel_ldr (mips32)"
+    # TODO(petarj): revisit some of these options, remove werror when ready
+    spushd "${NACL_ROOT}"
+    RunWithLog mips32_sel_ldr \
+      ./scons MODE=opt-host \
+      platform=mips32 \
+      naclsdk_validate=0 \
+      sysinfo=0 \
+      werror=0 \
+      sel_ldr
+    rm -rf  "${INSTALL_ROOT}/tools-mips32"
+    mkdir "${INSTALL_ROOT}/tools-mips32"
+    local sconsdir="scons-out/opt-${SCONS_BUILD_PLATFORM}-mips32"
+    cp "${sconsdir}/obj/src/trusted/service_runtime/sel_ldr" \
+       "${INSTALL_ROOT}/tools-mips32"
+    spopd
+  else
+    StepBanner "MISC-TOOLS" "Skipping mips sel_ldr (No trusted mips32 toolchain)"
+  fi
+
   if ${BUILD_PLATFORM_LINUX} ; then
     rm -rf  "${INSTALL_ROOT}/tools-x86"
     mkdir "${INSTALL_ROOT}/tools-x86"
     for target in arm mips; do
       build-validator $target
     done
   else
     for target in arm mips; do
       StepBanner "MISC-"${target} "Skipping " ${target} " validator (Not yet supported on Mac)"
     done
@@ skipping 2046 matching lines @@
   #Usage
   echo "ERROR: unknown function '$1'." >&2
   echo "For help, try:"
   echo "    $0 help"
   exit 1
 fi
 
 hg-migrate
 
 "$@"