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libffi: build on powerpc64/powerpc64le with the CMake build system #247

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libffi: build on powerpc64/powerpc64le with the CMake build system #247

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290babf
libffi: add powerpc64 to the CMake build
pkubaj Oct 28, 2026
029f164
libffi: set FFI_MMAP_EXEC_WRIT by system name
pkubaj Oct 28, 2026
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13 changes: 12 additions & 1 deletion libffi/.cmake/configure_options.cmake
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Original file line number Diff line number Diff line change
Expand Up @@ -118,11 +118,22 @@ elseif(TARGET_PLATFORM MATCHES ARM.*)

list(APPEND SOURCES_LIST src/arm/ffi.c)
set(TARGETDIR arm)
elseif(TARGET_PLATFORM STREQUAL POWERPC)
# 64-bit ELF (Linux and FreeBSD powerpc64/powerpc64le) only; the sysv
# files from configure.host are for 32-bit powerpc.
list(APPEND SOURCES_LIST
src/powerpc/ffi.c
src/powerpc/ffi_linux64.c
src/powerpc/linux64.S
src/powerpc/linux64_closure.S)
set(TARGETDIR powerpc)
endif()

if(CMAKE_SYSTEM_NAME STREQUAL Darwin AND TARGET_PLATFORM STREQUAL AARCH64)
set(FFI_EXEC_TRAMPOLINE_TABLE 1)
elseif(CMAKE_SYSTEM_NAME STREQUAL Darwin OR TARGET_PLATFORM MATCHES .*FREEBSD.*)
elseif(CMAKE_SYSTEM_NAME MATCHES "^(Darwin|FreeBSD|OpenBSD|SunOS|Android)$")
# Same systems as libffi's configure.ac: memory from malloc is not
# executable there, so closures need the mmap based allocator.
set(FFI_MMAP_EXEC_WRIT 1)
endif()

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2 changes: 2 additions & 0 deletions libffi/.cmake/configure_platform.cmake
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Expand Up @@ -38,6 +38,8 @@ if("${TARGET_PLATFORM}" STREQUAL "")
else()
set(TARGET_PLATFORM ARM)
endif()
elseif(HOST_ARCH MATCHES powerpc64.*|ppc64.*)
set(TARGET_PLATFORM POWERPC)
else()
message(FATAL_ERROR "Unknown host.")
endif()
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