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host-gcc: add missing set(CMAKE_ASM_FLAGS -m32)

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This fixes the following error on all x86 BOARDs (qemu_x86,
galileo,... see "make usage" for the complete list) when compiling
assembly files with ZEPHYR_TOOLCHAIN_VARIANT=host:

 cc1: error: CPU you selected does not support x86-64 instruction set

This also fixes the following error when compiling minnowboard,
up_squared and up_squared_sbl boards with ZEPHYR_TOOLCHAIN_VARIANT=host:

  cc1: error: -mpreferred-stack-boundary=2 is not between 3 and 12

This fix alone is not enough to compile any of these boards; however it
moves compilation much further to the next, unrelated failure(s),
namely: 'undefined __udivdi3' and other libgcc symbols for all x86
boards; + some other, additional issues for some boards. See next
commit.

Signed-off-by: Marc Herbert <marc.herbert@intel.com>
This commit is contained in:
Marc Herbert 2019-01-23 12:16:26 -08:00 • committed by Anas Nashif
commit 5ac9cfd131
1 changed files with 2 additions and 1 deletions
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3
cmake/compiler/host-gcc/target.cmake
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@ -9,9 +9,10 @@ find_program(CMAKE_RANLILB ranlib )
find_program(CMAKE_READELF readelf)
find_program(CMAKE_GDB gdb )
set(CMAKE_ASM_FLAGS -m32 )
set(CMAKE_C_FLAGS -m32 )
set(CMAKE_CXX_FLAGS -m32 )
set(CMAKE_SHARED_LINKER_FLAGS -m32 )
set(CMAKE_SHARED_LINKER_FLAGS -m32 ) # unused?
if(CONFIG_CPLUSPLUS)
set(cplusplus_compiler g++)