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Enable cross compilation to aarch64

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Change-Id: Iafc8ac60926f5286990ce63a4ff4f8b6a7c46bef
This commit is contained in:
George Wort
2021-05-17 15:17:38 +01:00
committed by Konstantinos Margaritis
parent 32bd8b131c
commit 2c350e7803
7 changed files with 86 additions and 15 deletions
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28
cmake/platform.cmake
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@@ -1,15 +1,21 @@
# determine the target arch
# really only interested in the preprocessor here
CHECK_C_SOURCE_COMPILES("#if !(defined(__x86_64__) || defined(_M_X64))\n#error not 64bit\n#endif\nint main(void) { return 0; }" ARCH_X86_64)
CHECK_C_SOURCE_COMPILES("#if !(defined(__i386__) || defined(_M_IX86))\n#error not 32bit\n#endif\nint main(void) { return 0; }" ARCH_IA32)
CHECK_C_SOURCE_COMPILES("#if !defined(__ARM_ARCH_ISA_A64)\n#error not 64bit\n#endif\nint main(void) { return 0; }" ARCH_AARCH64)
CHECK_C_SOURCE_COMPILES("#if !defined(__ARM_ARCH_ISA_ARM)\n#error not 32bit\n#endif\nint main(void) { return 0; }" ARCH_ARM32)
if (ARCH_X86_64 OR ARCH_AARCH64)
if (CROSS_COMPILE_AARCH64)
set(ARCH_AARCH64 TRUE)
set(ARCH_64_BIT TRUE)
message(STATUS "Cross compiling for aarch64")
else()
set(ARCH_32_BIT TRUE)
endif()
# really only interested in the preprocessor here
CHECK_C_SOURCE_COMPILES("#if !(defined(__x86_64__) || defined(_M_X64))\n#error not 64bit\n#endif\nint main(void) { return 0; }" ARCH_X86_64)
CHECK_C_SOURCE_COMPILES("#if !(defined(__i386__) || defined(_M_IX86))\n#error not 32bit\n#endif\nint main(void) { return 0; }" ARCH_IA32)
CHECK_C_SOURCE_COMPILES("#if !defined(__ARM_ARCH_ISA_A64)\n#error not 64bit\n#endif\nint main(void) { return 0; }" ARCH_AARCH64)
CHECK_C_SOURCE_COMPILES("#if !defined(__ARM_ARCH_ISA_ARM)\n#error not 32bit\n#endif\nint main(void) { return 0; }" ARCH_ARM32)
if (ARCH_X86_64 OR ARCH_AARCH64)
set(ARCH_64_BIT TRUE)
else()
set(ARCH_32_BIT TRUE)
endif()
endif()