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[debugserver] Detect arch from LLVM_DEFAULT_TARGET_TRIPLE 

The debugserver build needs to conditionally include files depending on the
target architecture.

Switch on the architecture specified by LLVM_DEFAULT_TARGET_TRIPLE, as
the llvm and swift build systems use this variable to identify the
target (the latter, indirectly, through LLVM_HOST_TRIPLE).

It would be possible to switch on CMAKE_OSX_ARCHITECTURES, but the swift
build does not provide it, preferring instead to pass arch-specific
CFLAGS etc explicitly. Switching on LLVM_HOST_TRIPLE is also an option,
but it breaks down when cross-compiling.

Differential Revision: https://reviews.llvm.org/D69523
This commit is contained in:
Vedant Kumar 2019-10-28 11:35:36 -07:00
parent dfece0a108
commit 82d3ba87d0
1 changed files with 17 additions and 3 deletions
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20
lldb/tools/debugserver/source/MacOSX/CMakeLists.txt
View File

@ -1,14 +1,28 @@
if("${CMAKE_OSX_ARCHITECTURES}" MATCHES ".*arm.*")
# The debugserver build needs to conditionally include files depending on the
# target architecture.
#
# Switch on the architecture specified by LLVM_DEFAULT_TARGET_TRIPLE, as
# the llvm and swift build systems use this variable to identify the
# target (the latter, indirectly, through LLVM_HOST_TRIPLE).
#
# It would be possible to switch on CMAKE_OSX_ARCHITECTURES, but the swift
# build does not provide it, preferring instead to pass arch-specific
# CFLAGS etc explicitly. Switching on LLVM_HOST_TRIPLE is also an option,
# but it breaks down when cross-compiling.
string(REGEX MATCH "^[^-]*" LLDB_DEBUGSERVER_ARCH ${LLVM_DEFAULT_TARGET_TRIPLE})
if("${LLDB_DEBUGSERVER_ARCH}" MATCHES ".*arm.*")
list(APPEND SOURCES arm/DNBArchImpl.cpp arm64/DNBArchImplARM64.cpp)
include_directories(${CURRENT_SOURCE_DIR}/arm ${CURRENT_SOURCE_DIR}/arm64)
endif()
if(NOT CMAKE_OSX_ARCHITECTURES OR "${CMAKE_OSX_ARCHITECTURES}" MATCHES ".*86.*")
if(NOT LLDB_DEBUGSERVER_ARCH OR "${LLDB_DEBUGSERVER_ARCH}" MATCHES ".*86.*")
list(APPEND SOURCES i386/DNBArchImplI386.cpp x86_64/DNBArchImplX86_64.cpp)
include_directories(${CURRENT_SOURCE_DIR}/i386 ${CURRENT_SOURCE_DIR}/x86_64)
endif()
if("${CMAKE_OSX_ARCHITECTURES}" MATCHES ".*ppc.*")
if("${LLDB_DEBUGSERVER_ARCH}" MATCHES ".*ppc.*")
list(APPEND SOURCES ppc/DNBArchImpl.cpp)
include_directories(${CURRENT_SOURCE_DIR}/ppc)
endif()