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enable Hexagon target from cmake

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This patch allows us to use cmake to specify a cross compiler for Hexagon.

In particular, the patch adds a missing case for the target Hexagon in
cmake/config-ix.cmake, and it moves LLVM_DEFAULT_TARGET_TRIPLE and TARGET_TRIPLE
variables from cmake/config-ix.cmake to the toplevel CMakeLists.txt to make them
available at configure time. Here is the command line that I have used to test
my patches:

$ cmake -G Ninja -D BUILD_SHARED_LIBS:BOOL=ON -D LLVM_TARGETS_TO_BUILD:STRING=Hexagon -D TARGET_TRIPLE:STRING=hexagon-unknown-linux-gnu -D LLVM_DEFAULT_TARGET_TRIPLE:STRING=hexagon-unknown-linux-gnu -D LLVM_TARGET_ARCH:STRING=hexagon-unknown-linux-gnu -D LLVM_ENABLE_PIC:BOOL=OFF ..
$ ninja check

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161504 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Sebastian Pop 2012-08-08 17:45:43 +00:00
parent 8a403d326e
commit 6174fd7ed0
2 changed files with 11 additions and 7 deletions
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11
CMakeLists.txt
View File

@ -116,8 +116,15 @@ option(LLVM_ENABLE_FFI "Use libffi to call external functions from the interpret
set(FFI_LIBRARY_DIR "" CACHE PATH "Additional directory, where CMake should search for libffi.so")
set(FFI_INCLUDE_DIR "" CACHE PATH "Additional directory, where CMake should search for ffi.h or ffi/ffi.h")
set(LLVM_TARGET_ARCH "host"
CACHE STRING "Set target to use for LLVM JIT or use \"host\" for automatic detection.")
set(LLVM_TARGET_ARCH "host" CACHE STRING
"Set target to use for LLVM JIT or use \"host\" for automatic detection.")
# By default, we target the host, but this can be overridden at CMake
# invocation time.
set(LLVM_DEFAULT_TARGET_TRIPLE "${LLVM_TARGET_ARCH}" CACHE STRING
"Default target for which LLVM will generate code." )
set(TARGET_TRIPLE "${LLVM_DEFAULT_TARGET_TRIPLE}" CACHE STRING
"Default target for which LLVM will generate code." )
option(LLVM_ENABLE_THREADS "Use threads if available." ON)

7
cmake/config-ix.cmake
View File

@ -291,12 +291,7 @@ check_cxx_compiler_flag("-Wno-variadic-macros" SUPPORTS_NO_VARIADIC_MACROS_FLAG)
include(GetHostTriple)
get_host_triple(LLVM_HOST_TRIPLE)
# By default, we target the host, but this can be overridden at CMake
# invocation time.
set(LLVM_DEFAULT_TARGET_TRIPLE "${LLVM_HOST_TRIPLE}")
set(LLVM_HOSTTRIPLE "${LLVM_HOST_TRIPLE}")
set(TARGET_TRIPLE "${LLVM_DEFAULT_TARGET_TRIPLE}")
# Determine the native architecture.
string(TOLOWER "${LLVM_TARGET_ARCH}" LLVM_NATIVE_ARCH)
@ -324,6 +319,8 @@ elseif (LLVM_NATIVE_ARCH MATCHES "xcore")
set(LLVM_NATIVE_ARCH XCore)
elseif (LLVM_NATIVE_ARCH MATCHES "msp430")
set(LLVM_NATIVE_ARCH MSP430)
elseif (LLVM_NATIVE_ARCH MATCHES "hexagon")
set(LLVM_NATIVE_ARCH Hexagon)
else ()
message(FATAL_ERROR "Unknown architecture ${LLVM_NATIVE_ARCH}")
endif ()