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cmake: Add check_arm32_assembly function

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Hennadii Stepanov 2023-05-12 10:38:50 +01:00
parent e5cf4bf3ff
commit ed4ba238e2
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GPG Key ID: 410108112E7EA81F
3 changed files with 22 additions and 1 deletions
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8
CMakeLists.txt
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@ -107,7 +107,13 @@ set_property(CACHE SECP256K1_ASM PROPERTY STRINGS "AUTO" "OFF" "x86_64" "arm32")
check_string_option_value(SECP256K1_ASM)
if(SECP256K1_ASM STREQUAL "arm32")
enable_language(ASM)
add_compile_definitions(USE_EXTERNAL_ASM=1)
include(CheckArm32Assembly)
check_arm32_assembly()
if(HAVE_ARM32_ASM)
add_compile_definitions(USE_EXTERNAL_ASM=1)
else()
message(FATAL_ERROR "ARM32 assembly optimization requested but not available.")
endif()
elseif(SECP256K1_ASM)
include(Check64bitAssembly)
check_64bit_assembly()

6
cmake/CheckArm32Assembly.cmake Normal file
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@ -0,0 +1,6 @@
function(check_arm32_assembly)
try_compile(HAVE_ARM32_ASM
${CMAKE_BINARY_DIR}/check_arm32_assembly
SOURCES ${CMAKE_SOURCE_DIR}/cmake/source_arm32.s
)
endfunction()

9
cmake/source_arm32.s Normal file
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@ -0,0 +1,9 @@
.syntax unified
.eabi_attribute 24, 1
.eabi_attribute 25, 1
.text
.global main
main:
ldr r0, =0x002A
mov r7, #1
swi 0