mirror of git://sigrok.org/pulseview
42 lines
1.2 KiB
CMake
42 lines
1.2 KiB
CMake
##
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## This file is part of the PulseView project.
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##
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## Copyright (C) 2014 Marcus Comstedt <marcus@mc.pp.se>
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##
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## This program is free software: you can redistribute it and/or modify
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## it under the terms of the GNU General Public License as published by
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## the Free Software Foundation, either version 2 of the License, or
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## (at your option) any later version.
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##
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## This program is distributed in the hope that it will be useful,
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## but WITHOUT ANY WARRANTY; without even the implied warranty of
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## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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## GNU General Public License for more details.
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##
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## You should have received a copy of the GNU General Public License
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## along with this program. If not, see <http://www.gnu.org/licenses/>.
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##
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include(CheckCSourceRuns)
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function(memaccess_check_unaligned_le _var)
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if(NOT CMAKE_CROSSCOMPILING)
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CHECK_C_SOURCE_RUNS("
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#include <stdint.h>
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int main() {
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int i;
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union { uint64_t u64; uint8_t u8[16]; } d;
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uint64_t v;
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for (i=0; i<16; i++)
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d.u8[i] = i;
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v = *(uint64_t *)(d.u8+1);
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if (v != 0x0807060504030201ULL)
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return 1;
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return 0;
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}" ${_var})
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endif()
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if(CMAKE_CROSSCOMPILING)
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message(STATUS "Cross compiling - using portable code for memory access")
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endif()
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endfunction()
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