diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/trans/target.cpp | 172 |
1 files changed, 165 insertions, 7 deletions
diff --git a/src/trans/target.cpp b/src/trans/target.cpp index 1f04666e..54c3e7df 100644 --- a/src/trans/target.cpp +++ b/src/trans/target.cpp @@ -12,18 +12,19 @@ #include <map> #include <hir/hir.hpp> #include <hir_typeck/helpers.hpp> +#include <toml.h> // tools/common -TargetArch ARCH_X86_64 = { +const TargetArch ARCH_X86_64 = { "x86_64", 64, false, { /*atomic(u8)=*/true, false, true, true, true } }; -TargetArch ARCH_X86 = { +const TargetArch ARCH_X86 = { "x86", 32, false, { /*atomic(u8)=*/true, false, true, false, true } }; -TargetArch ARCH_ARM32 = { +const TargetArch ARCH_ARM32 = { "arm", 32, false, { /*atomic(u8)=*/true, false, true, false, true } @@ -37,25 +38,182 @@ namespace { TargetSpec load_spec_from_file(const ::std::string& filename) { - throw ""; + TargetSpec rv; + + TomlFile toml_file(filename); + for(auto key_val : toml_file) + { + // Assertion: The way toml works, there has to be at least two entries in every path. + assert(key_val.path.size() > 1); + DEBUG(key_val.path << " = " << key_val.value); + + auto check_path_length = [&](const TomlKeyValue& kv, unsigned len) { + if( kv.path.size() != len ) { + // TODO: Error. + } + }; + + try + { + if( key_val.path[0] == "target" ) + { + if( key_val.path[1] == "family" ) + { + check_path_length(key_val, 2); + rv.m_family = key_val.value.as_string(); + } + else if( key_val.path[1] == "os-name" ) + { + check_path_length(key_val, 2); + rv.m_os_name = key_val.value.as_string(); + } + else if( key_val.path[1] == "env-name" ) + { + check_path_length(key_val, 2); + rv.m_env_name = key_val.value.as_string(); + } + else if( key_val.path[1] == "env-name" ) + { + check_path_length(key_val, 2); + rv.m_env_name = key_val.value.as_string(); + } + else if( key_val.path[1] == "arch" ) + { + check_path_length(key_val, 2); + if( key_val.value.as_string() == ARCH_ARM32.m_name ) + { + rv.m_arch = ARCH_ARM32; + } + else if( key_val.value.as_string() == ARCH_X86.m_name ) + { + rv.m_arch = ARCH_X86; + } + else if( key_val.value.as_string() == ARCH_X86_64.m_name ) + { + rv.m_arch = ARCH_X86_64; + } + else + { + // TODO: Error. + } + } + else + { + // TODO: Error/warning + } + } + else if( key_val.path[0] == "backend" ) + { + if( key_val.path[1] == "c" ) + { + if( key_val.path.size() <= 2 ) { + // TODO: Error. + continue ; + } + + if( key_val.path[2] == "variant" ) + { + check_path_length(key_val, 3); + if( key_val.value.as_string() == "msvc" ) + { + rv.m_codegen_mode = CodegenMode::Msvc; + } + else if( key_val.value.as_string() == "gnu" ) + { + rv.m_codegen_mode = CodegenMode::Gnu11; + } + else + { + // TODO: Error. + } + } + else if( key_val.path[2] == "target" ) + { + check_path_length(key_val, 3); + rv.m_c_compiler = key_val.value.as_string(); + } + else + { + // TODO: Warning/error + } + } + // Does MMIR need configuration? + else + { + // TODO: Error/warning + } + } + else if( key_val.path[0] == "arch" ) + { + if( key_val.path[1] == "name" ) + { + rv.m_arch.m_name = key_val.value.as_string(); + } + else if( key_val.path[1] == "pointer-bits" ) + { + rv.m_arch.m_pointer_bits = key_val.value.as_int(); + } + else if( key_val.path[1] == "is-big-endian" ) + { + rv.m_arch.m_big_endian = key_val.value.as_bool(); + } + else if( key_val.path[1] == "has-atomic-u8" ) + { + rv.m_arch.m_atomics.u8 = key_val.value.as_bool(); + } + else if( key_val.path[1] == "has-atomic-u16" ) + { + rv.m_arch.m_atomics.u16 = key_val.value.as_bool(); + } + else if( key_val.path[1] == "has-atomic-u32" ) + { + rv.m_arch.m_atomics.u32 = key_val.value.as_bool(); + } + else if( key_val.path[1] == "has-atomic-u64" ) + { + rv.m_arch.m_atomics.u64 = key_val.value.as_bool(); + } + else if( key_val.path[1] == "has-atomic-ptr" ) + { + rv.m_arch.m_atomics.ptr = key_val.value.as_bool(); + } + else + { + // TODO: warning/error + } + } + else + { + } + } + catch(const TomlValue::TypeError& e) + { + // TODO: error + } + } + + // TODO: Ensure that everything is set + + return rv; } TargetSpec init_from_spec_name(const ::std::string& target_name) { - if( ::std::ifstream(target_name).is_open() ) + // TODO: If there's a '/' or a '\' in the filename, open it as a path, otherwise it has to be a triple. + if( target_name.find('/') != ::std::string::npos || target_name.find('\\') != ::std::string::npos ) { return load_spec_from_file(target_name); } else if(target_name == "i586-linux-gnu") { return TargetSpec { - "unix", "linux", "gnu", CodegenMode::Gnu11, "i586-pc-linux-gnu", + "unix", "linux", "gnu", CodegenMode::Gnu11, "i586-linux-gnu", ARCH_X86 }; } else if(target_name == "x86_64-linux-gnu") { return TargetSpec { - "unix", "linux", "gnu", CodegenMode::Gnu11, "x86_64-pc-linux-gnu", + "unix", "linux", "gnu", CodegenMode::Gnu11, "x86_64-linux-gnu", ARCH_X86_64 }; } |