diff options
Diffstat (limited to 'src/trans/target.cpp')
| -rw-r--r-- | src/trans/target.cpp | 55 |
1 files changed, 53 insertions, 2 deletions
diff --git a/src/trans/target.cpp b/src/trans/target.cpp index a85ab12a..d9b3486e 100644 --- a/src/trans/target.cpp +++ b/src/trans/target.cpp @@ -7,10 +7,53 @@ */ #include "target.hpp" #include <algorithm> +#include "../expand/cfg.hpp" // TODO: Replace with target selection #define POINTER_SIZE_BYTES 8 +TargetSpec g_target = { + "unix", + "linux", + "gnu", + CodegenMode::Gnu11, + TargetArch { + "x86_64", + 64, false, + { true, false, true, true, true } + } + }; + +void Target_SetCfg() +{ + if(g_target.m_family == "unix") { + Cfg_SetFlag("unix"); + } + else if( g_target.m_family == "windows") { + Cfg_SetFlag("windows"); + } + Cfg_SetValue("target_family", g_target.m_family); + + if( g_target.m_os_name == "linux" ) + { + Cfg_SetFlag("linux"); + } + Cfg_SetValue("target_env", g_target.m_env_name); + + Cfg_SetValue("target_os", g_target.m_os_name); + Cfg_SetValue("target_pointer_width", FMT(g_target.m_arch.m_pointer_bits)); + Cfg_SetValue("target_endian", g_target.m_arch.m_big_endian ? "big" : "little"); + Cfg_SetValue("target_arch", g_target.m_arch.m_name); + Cfg_SetValueCb("target_has_atomic", [&](const ::std::string& s) { + if(s == "8") return g_target.m_arch.m_atomics.u8; // Has an atomic byte + if(s == "ptr") return g_target.m_arch.m_atomics.ptr; // Has an atomic pointer-sized value + return false; + }); + Cfg_SetValueCb("target_feature", [](const ::std::string& s) { + return false; + }); +} + bool Target_GetSizeAndAlignOf(const Span& sp, const ::HIR::TypeRef& ty, size_t& out_size, size_t& out_align) { TU_MATCHA( (ty.m_data), (te), @@ -55,8 +98,8 @@ bool Target_GetSizeAndAlignOf(const Span& sp, const ::HIR::TypeRef& ty, size_t& return true; case ::HIR::CoreType::Usize: case ::HIR::CoreType::Isize: - out_size = POINTER_SIZE_BYTES; - out_align = POINTER_SIZE_BYTES; + out_size = g_target.m_arch.m_pointer_bits / 8; + out_align = g_target.m_arch.m_pointer_bits / 8; return true; case ::HIR::CoreType::F32: out_size = 4; @@ -104,6 +147,11 @@ bool Target_GetSizeAndAlignOf(const Span& sp, const ::HIR::TypeRef& ty, size_t& size_t size, align; if( !Target_GetSizeAndAlignOf(sp, t, size,align) ) return false; + if( out_size % align != 0 ) + { + out_size += align; + out_size %= align; + } out_size += size; out_align = ::std::max(out_align, align); } @@ -116,6 +164,9 @@ bool Target_GetSizeAndAlignOf(const Span& sp, const ::HIR::TypeRef& ty, size_t& ), (Function, // Pointer size + out_size = g_target.m_arch.m_pointer_bits / 8; + out_align = g_target.m_arch.m_pointer_bits / 8; + return true; ), (Closure, // TODO. |