diff options
| -rw-r--r-- | base/runtime/core_builtin.odin | 7 | ||||
| -rw-r--r-- | base/runtime/entry_windows.odin | 14 | ||||
| -rw-r--r-- | core/testing/signal_handler_libc.odin | 16 | ||||
| -rw-r--r-- | src/linker.cpp | 6 | ||||
| -rw-r--r-- | src/llvm_backend.cpp | 10 | ||||
| -rw-r--r-- | src/main.cpp | 5 |
6 files changed, 50 insertions, 8 deletions
diff --git a/base/runtime/core_builtin.odin b/base/runtime/core_builtin.odin index 3a51d71fb..33b600c3e 100644 --- a/base/runtime/core_builtin.odin +++ b/base/runtime/core_builtin.odin @@ -54,7 +54,12 @@ container_of :: #force_inline proc "contextless" (ptr: $P/^$Field_Type, $T: type when !NO_DEFAULT_TEMP_ALLOCATOR { - @thread_local global_default_temp_allocator_data: Default_Temp_Allocator + when ODIN_ARCH == .i386 && ODIN_OS == .Windows { + // Thread-local storage is problematic on Windows i386 + global_default_temp_allocator_data: Default_Temp_Allocator + } else { + @thread_local global_default_temp_allocator_data: Default_Temp_Allocator + } } @(builtin, disabled=NO_DEFAULT_TEMP_ALLOCATOR) diff --git a/base/runtime/entry_windows.odin b/base/runtime/entry_windows.odin index 8eb4cc7d1..dc8e9b82c 100644 --- a/base/runtime/entry_windows.odin +++ b/base/runtime/entry_windows.odin @@ -28,7 +28,19 @@ when ODIN_BUILD_MODE == .Dynamic { return true } } else when !ODIN_TEST && !ODIN_NO_ENTRY_POINT { - when ODIN_ARCH == .i386 || ODIN_NO_CRT { + when ODIN_ARCH == .i386 && !ODIN_NO_CRT { + // Windows i386 with CRT: libcmt provides mainCRTStartup which calls _main + // Note: "c" calling convention adds underscore prefix automatically on i386 + @(link_name="main", linkage="strong", require) + main :: proc "c" (argc: i32, argv: [^]cstring) -> i32 { + args__ = argv[:argc] + context = default_context() + #force_no_inline _startup_runtime() + intrinsics.__entry_point() + #force_no_inline _cleanup_runtime() + return 0 + } + } else when ODIN_NO_CRT { @(link_name="mainCRTStartup", linkage="strong", require) mainCRTStartup :: proc "system" () -> i32 { context = default_context() diff --git a/core/testing/signal_handler_libc.odin b/core/testing/signal_handler_libc.odin index 4fc9552ae..961f5c7ce 100644 --- a/core/testing/signal_handler_libc.odin +++ b/core/testing/signal_handler_libc.odin @@ -24,10 +24,18 @@ import "core:terminal/ansi" @(private="file") stop_test_passed: libc.sig_atomic_t @(private="file") stop_test_alert: libc.sig_atomic_t -@(private="file", thread_local) -local_test_index: libc.sig_atomic_t -@(private="file", thread_local) -local_test_index_set: bool +when ODIN_ARCH == .i386 && ODIN_OS == .Windows { + // Thread-local storage is problematic on Windows i386 + @(private="file") + local_test_index: libc.sig_atomic_t + @(private="file") + local_test_index_set: bool +} else { + @(private="file", thread_local) + local_test_index: libc.sig_atomic_t + @(private="file", thread_local) + local_test_index_set: bool +} // Windows does not appear to have a SIGTRAP, so this is defined here, instead // of in the libc package, just so there's no confusion about it being diff --git a/src/linker.cpp b/src/linker.cpp index 41333a3c9..333cb792e 100644 --- a/src/linker.cpp +++ b/src/linker.cpp @@ -281,7 +281,11 @@ try_cross_linking:; link_settings = gb_string_append_fmt(link_settings, " /NOENTRY"); } } else { - link_settings = gb_string_append_fmt(link_settings, " /ENTRY:mainCRTStartup"); + // For i386 with CRT, libcmt provides the entry point + // For other cases or no_crt, we need to specify the entry point + if (!(build_context.metrics.arch == TargetArch_i386 && !build_context.no_crt)) { + link_settings = gb_string_append_fmt(link_settings, " /ENTRY:mainCRTStartup"); + } } if (build_context.build_paths[BuildPath_Symbols].name != "") { diff --git a/src/llvm_backend.cpp b/src/llvm_backend.cpp index ff17e9c10..f2d09f400 100644 --- a/src/llvm_backend.cpp +++ b/src/llvm_backend.cpp @@ -2686,8 +2686,15 @@ gb_internal lbProcedure *lb_create_main_procedure(lbModule *m, lbProcedure *star params->Tuple.variables[1] = alloc_entity_param(nullptr, make_token_ident("fdwReason"), t_u32, false, true); params->Tuple.variables[2] = alloc_entity_param(nullptr, make_token_ident("lpReserved"), t_rawptr, false, true); call_cleanup = false; - } else if (build_context.metrics.os == TargetOs_windows && (build_context.metrics.arch == TargetArch_i386 || build_context.no_crt)) { + } else if (build_context.metrics.os == TargetOs_windows && build_context.no_crt) { name = str_lit("mainCRTStartup"); + } else if (build_context.metrics.os == TargetOs_windows && build_context.metrics.arch == TargetArch_i386 && !build_context.no_crt) { + // Windows i386 with CRT: libcmt expects _main (main with underscore prefix) + name = str_lit("main"); + has_args = true; + slice_init(¶ms->Tuple.variables, permanent_allocator(), 2); + params->Tuple.variables[0] = alloc_entity_param(nullptr, make_token_ident("argc"), t_i32, false, true); + params->Tuple.variables[1] = alloc_entity_param(nullptr, make_token_ident("argv"), t_ptr_cstring, false, true); } else if (is_arch_wasm()) { name = str_lit("_start"); call_cleanup = false; @@ -3162,6 +3169,7 @@ gb_internal bool lb_generate_code(lbGenerator *gen) { String link_name = e->Procedure.link_name; if (e->pkg->kind == Package_Runtime) { if (link_name == "main" || + link_name == "_main" || link_name == "DllMain" || link_name == "WinMain" || link_name == "wWinMain" || diff --git a/src/main.cpp b/src/main.cpp index db4dee080..c4646bc9f 100644 --- a/src/main.cpp +++ b/src/main.cpp @@ -3617,6 +3617,11 @@ int main(int arg_count, char const **arg_ptr) { // print_usage_line(0, "%.*s 32-bit is not yet supported for this platform", LIT(args[0])); // return 1; // } + + // Warn about Windows i386 thread-local storage limitations + if (build_context.metrics.arch == TargetArch_i386 && build_context.metrics.os == TargetOs_windows) { + gb_printf_err("Warning: Thread-local storage is disabled on Windows i386.\n"); + } // Check chosen microarchitecture. If not found or ?, print list. bool print_microarch_list = true; |