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1
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+--- a/meson.build
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2
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++++ b/meson.build
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3
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+@@ -39,6 +39,9 @@ prog_py = import('python').find_installa
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4
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+ files_symbols_check = files('bin/symbols-check.py')
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5
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+ prog_nm = find_program('nm')
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6
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+
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7
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++message('Host CPU family: @0@'.format(host_machine.cpu_family()))
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8
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++message('Host CPU: @0@'.format(host_machine.cpu()))
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9
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++
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10
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+ with_asm = get_option('asm')
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11
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+ use_asm = false
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12
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+ if not with_asm.disabled()
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13
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+@@ -52,7 +55,28 @@ if not with_asm.disabled()
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14
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+ 'netbsd'].contains(host_machine.system()))
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15
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+ add_project_arguments('-DUSE_X86_64_ASM', language : 'c')
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16
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+ elif host_machine.cpu_family() == 'arm'
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17
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+- add_project_arguments('-DUSE_ARMV7_ASM', language : 'c')
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18
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++ # Try to figure out if we're targeting an ARMv7 or something older like
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19
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++ # armel. Note that host_machine.cpu() won't help here -- it might still
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20
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++ # return "armv7l" or "armv8l". Instead, try checking for compiler macros.
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21
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++ if ['gcc', 'clang'].contains(cc.get_id())
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22
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++ is_armv7 = cc.compiles('''
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23
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++#if !(defined(__ARM_ARCH_7__) \
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24
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++ || defined(__ARM_ARCH_7A__) \
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25
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++ || defined(__ARM_ARCH_7R__) \
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26
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++ || defined(__ARM_ARCH_7M__) \
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27
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++ || defined(__ARM_ARCH_7S__) \
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28
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++ || (defined(__ARM_ARCH) && __ARM_ARCH >= 7))
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29
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++#error "Not ARM7"
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30
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++#endif
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31
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++ ''', name : 'ARMv7 macros')
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32
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++ else
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33
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++ is_armv7 = true
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34
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++ endif
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35
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++ if is_armv7
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36
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++ add_project_arguments('-DUSE_ARMV7_ASM', language : 'c')
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37
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++ else
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38
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++ use_asm = false
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39
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++ endif
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40
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+ elif host_machine.cpu_family() == 'aarch64'
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41
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+ add_project_arguments('-DUSE_AARCH64_ASM', language : 'c')
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42
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+ elif host_machine.cpu_family() == 'ppc' and host_machine.endian() == 'little'
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