macro_name MSVC

minimum_supported_version 19.30

binary_name cl
linker_name link

output_to_object "/Fo"
output_to_exe "/OUT:"

add_include_dir_option "/I"
add_system_include_dir_option "/external:W0 /external:I"
add_lib_dir_option "/LIBPATH:"
add_compile_definition_option "/D"
add_lib_option "%s.lib"

compile_flags "/nologo /c"

optimization_flags "/O2 /Oi /Zc:throwingNew"
size_optimization_flags "/O1 /Os"

# for debug info in the object file (required if using sccache):
debug_info_flags "/Z7"

# for using a PDB file:
#debug_info_flags "/Zi /FS"

preproc_flags "/nologo /EP /Zc:preprocessor"

lang_flags "/Zc:preprocessor /Zc:inline /std:c++20 /EHs /GR"

# 4251: STL types used in DLL interface
# 4275: ???
# 5072: ASan without debug info
warning_flags "/W4 /wd4251 /wd4275 /wd5072"

werror_flags "/WX"

visibility_build_flags "/DBOTAN_DLL=__declspec(dllexport)"
visibility_attribute "__declspec(dllimport)"

# Include dependency tracking for Ninja
# See: https://ninja-build.org/manual.html#ref_headers
ninja_header_deps_style 'msvc'
header_deps_flag '/showIncludes'

ar_command lib
ar_options "/nologo"
ar_output_to "/OUT:"

<sanitizers>
default -> address

iterator -> "/D_ITERATOR_DEBUG_LEVEL=1"
address   -> "/fsanitize=address"
</sanitizers>

<isa_flags>
sse2   -> ""
ssse3  -> ""
sse41 -> ""
x86_64:avx2   -> "/arch:AVX"
x86_64:avx512 -> "/arch:AVX512"
x86_64:avx512_clmul -> "/arch:AVX512"
aesni  -> ""
clmul  -> ""
rdrand -> ""
rdseed -> ""
sha    -> ""
bmi2   -> ""
gfni   -> ""
</isa_flags>

<lib_flags>
debug -> "/Fd%{build_dir}/%{libname}.pdb"
</lib_flags>

<so_link_commands>
default       -> "{linker} /DLL"
default-debug -> "{linker} /DLL /DEBUG"
</so_link_commands>

<binary_link_commands>
default       -> "{linker}"
default-debug -> "{linker} /DEBUG"
</binary_link_commands>

<mach_abi_linking>
all              -> "/bigobj"

# These can be overridden with --msvc-runtime option
rt               -> "/MD"
rt-debug         -> "/MDd"
</mach_abi_linking>

# Currently, MSVC is not known to perform the sorts of optimizations
# which break constant time code. Using inline asm as a value barrier
# is not an option in MSVC, leaving only use of volatile. Using
# volatile is likely to introduce a significant performance
# regression, and does not seem worth it at this time.

<ct_value_barrier>
default -> none
</ct_value_barrier>
