From 66acbb7fed88ed9132dfc8107865e0ac27ed3ac8 Mon Sep 17 00:00:00 2001 From: gingerBill Date: Thu, 30 May 2024 21:48:23 +0100 Subject: Add `@(link_suffix=)` --- src/entity.cpp | 2 ++ 1 file changed, 2 insertions(+) (limited to 'src/entity.cpp') diff --git a/src/entity.cpp b/src/entity.cpp index 1461b96d7..e4fc66dac 100644 --- a/src/entity.cpp +++ b/src/entity.cpp @@ -223,6 +223,7 @@ struct Entity { Ast * foreign_library_ident; String link_name; String link_prefix; + String link_suffix; String link_section; CommentGroup *docs; CommentGroup *comment; @@ -243,6 +244,7 @@ struct Entity { Ast * foreign_library_ident; String link_name; String link_prefix; + String link_suffix; DeferredProcedure deferred_procedure; struct GenProcsData *gen_procs; -- cgit v1.2.3 From 9ef43fc782159893b7af139f9d9be3aec3108ecd Mon Sep 17 00:00:00 2001 From: gingerBill Date: Thu, 6 Jun 2024 15:16:34 +0100 Subject: Add `@(rodata)` --- src/check_decl.cpp | 6 ++++++ src/check_stmt.cpp | 6 ++++++ src/checker.cpp | 6 ++++++ src/checker.hpp | 1 + src/entity.cpp | 1 + src/llvm_backend.cpp | 20 ++++++++++++++++++-- 6 files changed, 38 insertions(+), 2 deletions(-) (limited to 'src/entity.cpp') diff --git a/src/check_decl.cpp b/src/check_decl.cpp index f2afce59c..43947836b 100644 --- a/src/check_decl.cpp +++ b/src/check_decl.cpp @@ -1264,6 +1264,9 @@ gb_internal void check_global_variable_decl(CheckerContext *ctx, Entity *&e, Ast if (ac.is_static) { error(e->token, "@(static) is not supported for global variables, nor required"); } + if (ac.rodata) { + e->Variable.is_rodata = true; + } ac.link_name = handle_link_name(ctx, e->token, ac.link_name, ac.link_prefix, ac.link_suffix); if (is_arch_wasm() && e->Variable.thread_local_model.len != 0) { @@ -1350,6 +1353,9 @@ gb_internal void check_global_variable_decl(CheckerContext *ctx, Entity *&e, Ast Operand o = {}; check_expr_with_type_hint(ctx, &o, init_expr, e->type); check_init_variable(ctx, e, &o, str_lit("variable declaration")); + if (e->Variable.is_rodata && o.mode != Addressing_Constant) { + error(o.expr, "Variables declared with @(rodata) must have constant initialization"); + } check_rtti_type_disallowed(e->token, e->type, "A variable declaration is using a type, %s, which has been disallowed"); } diff --git a/src/check_stmt.cpp b/src/check_stmt.cpp index 2c37bced0..fc443a7b5 100644 --- a/src/check_stmt.cpp +++ b/src/check_stmt.cpp @@ -501,6 +501,9 @@ gb_internal Type *check_assignment_variable(CheckerContext *ctx, Operand *lhs, O return nullptr; case Addressing_Variable: + if (e && e->kind == Entity_Variable && e->Variable.is_rodata) { + error(lhs->expr, "Assignment to variable '%.*s' marked as @(rodata) is not allowed", LIT(e->token.string)); + } break; case Addressing_MapIndex: { @@ -2055,6 +2058,9 @@ gb_internal void check_value_decl_stmt(CheckerContext *ctx, Ast *node, u32 mod_f } } } + if (ac.rodata) { + error(e->token, "Only global variables can have @(rodata) applied"); + } if (ac.thread_local_model != "") { String name = e->token.string; if (name == "_") { diff --git a/src/checker.cpp b/src/checker.cpp index 97e685d33..8a58bb425 100644 --- a/src/checker.cpp +++ b/src/checker.cpp @@ -3628,6 +3628,12 @@ gb_internal DECL_ATTRIBUTE_PROC(var_decl_attribute) { } ac->is_static = true; return true; + } else if (name == "rodata") { + if (value != nullptr) { + error(elem, "'rodata' does not have any parameters"); + } + ac->rodata = true; + return true; } else if (name == "thread_local") { ExactValue ev = check_decl_attribute_value(c, value); if (ac->init_expr_list_count > 0) { diff --git a/src/checker.hpp b/src/checker.hpp index e793540e3..2ac4c8e7a 100644 --- a/src/checker.hpp +++ b/src/checker.hpp @@ -133,6 +133,7 @@ struct AttributeContext { bool entry_point_only : 1; bool instrumentation_enter : 1; bool instrumentation_exit : 1; + bool rodata : 1; u32 optimization_mode; // ProcedureOptimizationMode i64 foreign_import_priority_index; String extra_linker_flags; diff --git a/src/entity.cpp b/src/entity.cpp index e4fc66dac..7f484e308 100644 --- a/src/entity.cpp +++ b/src/entity.cpp @@ -230,6 +230,7 @@ struct Entity { bool is_foreign; bool is_export; bool is_global; + bool is_rodata; } Variable; struct { Type * type_parameter_specialization; diff --git a/src/llvm_backend.cpp b/src/llvm_backend.cpp index 03c17a8bb..5dc6d94d5 100644 --- a/src/llvm_backend.cpp +++ b/src/llvm_backend.cpp @@ -1160,6 +1160,10 @@ gb_internal lbProcedure *lb_create_startup_runtime(lbModule *main_module, lbProc if (is_type_untyped_nil(init.type)) { LLVMSetInitializer(var.var.value, LLVMConstNull(global_type)); var.is_initialized = true; + + if (e->Variable.is_rodata) { + LLVMSetGlobalConstant(var.var.value, true); + } continue; } GB_PANIC("Invalid init value, got %s", expr_to_string(init_expr)); @@ -1174,6 +1178,10 @@ gb_internal lbProcedure *lb_create_startup_runtime(lbModule *main_module, lbProc } LLVMSetInitializer(var.var.value, init.value); var.is_initialized = true; + + if (e->Variable.is_rodata) { + LLVMSetGlobalConstant(var.var.value, true); + } continue; } } else { @@ -1206,8 +1214,9 @@ gb_internal lbProcedure *lb_create_startup_runtime(lbModule *main_module, lbProc var.is_initialized = true; } + + } - CheckerInfo *info = main_module->gen->info; for (Entity *e : info->init_procedures) { @@ -3210,14 +3219,21 @@ gb_internal bool lb_generate_code(lbGenerator *gen) { lbValue init = lb_const_value(m, tav.type, v); LLVMSetInitializer(g.value, init.value); var.is_initialized = true; + if (e->kind == Entity_Variable && e->Variable.is_rodata) { + LLVMSetGlobalConstant(g.value, true); + } } } } if (!var.is_initialized && is_type_untyped_nil(tav.type)) { var.is_initialized = true; + if (e->kind == Entity_Variable && e->Variable.is_rodata) { + LLVMSetGlobalConstant(g.value, true); + } } + } else if (e->kind == Entity_Variable && e->Variable.is_rodata) { + LLVMSetGlobalConstant(g.value, true); } - array_add(&global_variables, var); lb_add_entity(m, e, g); -- cgit v1.2.3