diff options
Diffstat (limited to 'src/link.zig')
| -rw-r--r-- | src/link.zig | 298 |
1 files changed, 122 insertions, 176 deletions
diff --git a/src/link.zig b/src/link.zig index 14b180ed2a..3e5caf9fc1 100644 --- a/src/link.zig +++ b/src/link.zig @@ -61,6 +61,7 @@ pub const File = struct { intermediary_basename: ?[]const u8 = null, disable_lld_caching: bool, gc_sections: bool, + print_gc_sections: bool, build_id: std.zig.BuildId, rpath_list: []const []const u8, /// List of symbols forced as undefined in the symbol table @@ -114,8 +115,8 @@ pub const File = struct { disable_lld_caching: bool, hash_style: Elf.HashStyle, sort_section: ?Elf.SortSection, - major_subsystem_version: ?u32, - minor_subsystem_version: ?u32, + major_subsystem_version: ?u16, + minor_subsystem_version: ?u16, gc_sections: ?bool, allow_shlib_undefined: ?bool, subsystem: ?std.Target.SubSystem, @@ -181,9 +182,15 @@ pub const File = struct { emit: Compilation.Emit, options: OpenOptions, ) !*File { - switch (Tag.fromObjectFormat(comp.root_mod.resolved_target.result.ofmt)) { - inline else => |tag| { - const ptr = try tag.Type().open(arena, comp, emit, options); + const tag = Tag.fromObjectFormat(comp.root_mod.resolved_target.result.ofmt); + switch (tag) { + .c => { + const ptr = try C.open(arena, comp, emit, options); + return &ptr.base; + }, + inline else => |t| { + if (build_options.only_c) unreachable; + const ptr = try t.Type().open(arena, comp, emit, options); return &ptr.base; }, } @@ -195,9 +202,15 @@ pub const File = struct { emit: Compilation.Emit, options: OpenOptions, ) !*File { - switch (Tag.fromObjectFormat(comp.root_mod.resolved_target.result.ofmt)) { - inline else => |tag| { - const ptr = try tag.Type().createEmpty(arena, comp, emit, options); + const tag = Tag.fromObjectFormat(comp.root_mod.resolved_target.result.ofmt); + switch (tag) { + .c => { + const ptr = try C.createEmpty(arena, comp, emit, options); + return &ptr.base; + }, + inline else => |t| { + if (build_options.only_c) unreachable; + const ptr = try t.Type().createEmpty(arena, comp, emit, options); return &ptr.base; }, } @@ -360,16 +373,12 @@ pub const File = struct { pub fn lowerUnnamedConst(base: *File, tv: TypedValue, decl_index: InternPool.DeclIndex) UpdateDeclError!u32 { if (build_options.only_c) @compileError("unreachable"); switch (base.tag) { - // zig fmt: off - .coff => return @fieldParentPtr(Coff, "base", base).lowerUnnamedConst(tv, decl_index), - .elf => return @fieldParentPtr(Elf, "base", base).lowerUnnamedConst(tv, decl_index), - .macho => return @fieldParentPtr(MachO, "base", base).lowerUnnamedConst(tv, decl_index), - .plan9 => return @fieldParentPtr(Plan9, "base", base).lowerUnnamedConst(tv, decl_index), .spirv => unreachable, - .c => unreachable, - .wasm => return @fieldParentPtr(Wasm, "base", base).lowerUnnamedConst(tv, decl_index), + .c => unreachable, .nvptx => unreachable, - // zig fmt: on + inline else => |t| { + return @fieldParentPtr(t.Type(), "base", base).lowerUnnamedConst(tv, decl_index); + }, } } @@ -382,16 +391,13 @@ pub const File = struct { if (build_options.only_c) @compileError("unreachable"); log.debug("getGlobalSymbol '{s}' (expected in '{?s}')", .{ name, lib_name }); switch (base.tag) { - // zig fmt: off - .coff => return @fieldParentPtr(Coff, "base", base).getGlobalSymbol(name, lib_name), - .elf => return @fieldParentPtr(Elf, "base", base).getGlobalSymbol(name, lib_name), - .macho => return @fieldParentPtr(MachO, "base", base).getGlobalSymbol(name, lib_name), .plan9 => unreachable, .spirv => unreachable, - .c => unreachable, - .wasm => return @fieldParentPtr(Wasm, "base", base).getGlobalSymbol(name, lib_name), + .c => unreachable, .nvptx => unreachable, - // zig fmt: on + inline else => |t| { + return @fieldParentPtr(t.Type(), "base", base).getGlobalSymbol(name, lib_name); + }, } } @@ -399,59 +405,48 @@ pub const File = struct { pub fn updateDecl(base: *File, module: *Module, decl_index: InternPool.DeclIndex) UpdateDeclError!void { const decl = module.declPtr(decl_index); assert(decl.has_tv); - if (build_options.only_c) { - assert(base.tag == .c); - return @fieldParentPtr(C, "base", base).updateDecl(module, decl_index); - } switch (base.tag) { - // zig fmt: off - .coff => return @fieldParentPtr(Coff, "base", base).updateDecl(module, decl_index), - .elf => return @fieldParentPtr(Elf, "base", base).updateDecl(module, decl_index), - .macho => return @fieldParentPtr(MachO, "base", base).updateDecl(module, decl_index), - .c => return @fieldParentPtr(C, "base", base).updateDecl(module, decl_index), - .wasm => return @fieldParentPtr(Wasm, "base", base).updateDecl(module, decl_index), - .spirv => return @fieldParentPtr(SpirV, "base", base).updateDecl(module, decl_index), - .plan9 => return @fieldParentPtr(Plan9, "base", base).updateDecl(module, decl_index), - .nvptx => return @fieldParentPtr(NvPtx, "base", base).updateDecl(module, decl_index), - // zig fmt: on + .c => { + return @fieldParentPtr(C, "base", base).updateDecl(module, decl_index); + }, + inline else => |tag| { + if (build_options.only_c) unreachable; + return @fieldParentPtr(tag.Type(), "base", base).updateDecl(module, decl_index); + }, } } /// May be called before or after updateExports for any given Decl. - pub fn updateFunc(base: *File, module: *Module, func_index: InternPool.Index, air: Air, liveness: Liveness) UpdateDeclError!void { - if (build_options.only_c) { - assert(base.tag == .c); - return @fieldParentPtr(C, "base", base).updateFunc(module, func_index, air, liveness); - } + pub fn updateFunc( + base: *File, + module: *Module, + func_index: InternPool.Index, + air: Air, + liveness: Liveness, + ) UpdateDeclError!void { switch (base.tag) { - // zig fmt: off - .coff => return @fieldParentPtr(Coff, "base", base).updateFunc(module, func_index, air, liveness), - .elf => return @fieldParentPtr(Elf, "base", base).updateFunc(module, func_index, air, liveness), - .macho => return @fieldParentPtr(MachO, "base", base).updateFunc(module, func_index, air, liveness), - .c => return @fieldParentPtr(C, "base", base).updateFunc(module, func_index, air, liveness), - .wasm => return @fieldParentPtr(Wasm, "base", base).updateFunc(module, func_index, air, liveness), - .spirv => return @fieldParentPtr(SpirV, "base", base).updateFunc(module, func_index, air, liveness), - .plan9 => return @fieldParentPtr(Plan9, "base", base).updateFunc(module, func_index, air, liveness), - .nvptx => return @fieldParentPtr(NvPtx, "base", base).updateFunc(module, func_index, air, liveness), - // zig fmt: on + .c => { + return @fieldParentPtr(C, "base", base).updateFunc(module, func_index, air, liveness); + }, + inline else => |tag| { + if (build_options.only_c) unreachable; + return @fieldParentPtr(tag.Type(), "base", base).updateFunc(module, func_index, air, liveness); + }, } } pub fn updateDeclLineNumber(base: *File, module: *Module, decl_index: InternPool.DeclIndex) UpdateDeclError!void { const decl = module.declPtr(decl_index); assert(decl.has_tv); - if (build_options.only_c) { - assert(base.tag == .c); - return @fieldParentPtr(C, "base", base).updateDeclLineNumber(module, decl_index); - } switch (base.tag) { - .coff => return @fieldParentPtr(Coff, "base", base).updateDeclLineNumber(module, decl_index), - .elf => return @fieldParentPtr(Elf, "base", base).updateDeclLineNumber(module, decl_index), - .macho => return @fieldParentPtr(MachO, "base", base).updateDeclLineNumber(module, decl_index), - .c => return @fieldParentPtr(C, "base", base).updateDeclLineNumber(module, decl_index), - .wasm => return @fieldParentPtr(Wasm, "base", base).updateDeclLineNumber(module, decl_index), - .plan9 => return @fieldParentPtr(Plan9, "base", base).updateDeclLineNumber(module, decl_index), .spirv, .nvptx => {}, + .c => { + return @fieldParentPtr(C, "base", base).updateDeclLineNumber(module, decl_index); + }, + inline else => |tag| { + if (build_options.only_c) unreachable; + return @fieldParentPtr(tag.Type(), "base", base).updateDeclLineNumber(module, decl_index); + }, } } @@ -477,44 +472,11 @@ pub const File = struct { base.misc_errors.deinit(gpa); } switch (base.tag) { - .coff => { - if (build_options.only_c) unreachable; - const parent = @fieldParentPtr(Coff, "base", base); - parent.deinit(); - }, - .elf => { - if (build_options.only_c) unreachable; - const parent = @fieldParentPtr(Elf, "base", base); - parent.deinit(); - }, - .macho => { - if (build_options.only_c) unreachable; - const parent = @fieldParentPtr(MachO, "base", base); - parent.deinit(); - }, - .c => { - const parent = @fieldParentPtr(C, "base", base); - parent.deinit(); - }, - .wasm => { - if (build_options.only_c) unreachable; - const parent = @fieldParentPtr(Wasm, "base", base); - parent.deinit(); - }, - .spirv => { - if (build_options.only_c) unreachable; - const parent = @fieldParentPtr(SpirV, "base", base); - parent.deinit(); - }, - .plan9 => { - if (build_options.only_c) unreachable; - const parent = @fieldParentPtr(Plan9, "base", base); - parent.deinit(); - }, - .nvptx => { + .c => @fieldParentPtr(C, "base", base).deinit(), + + inline else => |tag| { if (build_options.only_c) unreachable; - const parent = @fieldParentPtr(NvPtx, "base", base); - parent.deinit(); + @fieldParentPtr(tag.Type(), "base", base).deinit(); }, } } @@ -619,51 +581,36 @@ pub const File = struct { return base.linkAsArchive(comp, prog_node); } switch (base.tag) { - .coff => return @fieldParentPtr(Coff, "base", base).flush(comp, prog_node), - .elf => return @fieldParentPtr(Elf, "base", base).flush(comp, prog_node), - .macho => return @fieldParentPtr(MachO, "base", base).flush(comp, prog_node), - .c => return @fieldParentPtr(C, "base", base).flush(comp, prog_node), - .wasm => return @fieldParentPtr(Wasm, "base", base).flush(comp, prog_node), - .spirv => return @fieldParentPtr(SpirV, "base", base).flush(comp, prog_node), - .plan9 => return @fieldParentPtr(Plan9, "base", base).flush(comp, prog_node), - .nvptx => return @fieldParentPtr(NvPtx, "base", base).flush(comp, prog_node), + inline else => |tag| { + return @fieldParentPtr(tag.Type(), "base", base).flush(comp, prog_node); + }, } } /// Commit pending changes and write headers. Works based on `effectiveOutputMode` /// rather than final output mode. pub fn flushModule(base: *File, comp: *Compilation, prog_node: *std.Progress.Node) FlushError!void { - if (build_options.only_c) { - assert(base.tag == .c); - return @fieldParentPtr(C, "base", base).flushModule(comp, prog_node); - } switch (base.tag) { - .coff => return @fieldParentPtr(Coff, "base", base).flushModule(comp, prog_node), - .elf => return @fieldParentPtr(Elf, "base", base).flushModule(comp, prog_node), - .macho => return @fieldParentPtr(MachO, "base", base).flushModule(comp, prog_node), - .c => return @fieldParentPtr(C, "base", base).flushModule(comp, prog_node), - .wasm => return @fieldParentPtr(Wasm, "base", base).flushModule(comp, prog_node), - .spirv => return @fieldParentPtr(SpirV, "base", base).flushModule(comp, prog_node), - .plan9 => return @fieldParentPtr(Plan9, "base", base).flushModule(comp, prog_node), - .nvptx => return @fieldParentPtr(NvPtx, "base", base).flushModule(comp, prog_node), + .c => { + return @fieldParentPtr(C, "base", base).flushModule(comp, prog_node); + }, + inline else => |tag| { + if (build_options.only_c) unreachable; + return @fieldParentPtr(tag.Type(), "base", base).flushModule(comp, prog_node); + }, } } /// Called when a Decl is deleted from the Module. pub fn freeDecl(base: *File, decl_index: InternPool.DeclIndex) void { - if (build_options.only_c) { - assert(base.tag == .c); - return @fieldParentPtr(C, "base", base).freeDecl(decl_index); - } switch (base.tag) { - .coff => @fieldParentPtr(Coff, "base", base).freeDecl(decl_index), - .elf => @fieldParentPtr(Elf, "base", base).freeDecl(decl_index), - .macho => @fieldParentPtr(MachO, "base", base).freeDecl(decl_index), - .c => @fieldParentPtr(C, "base", base).freeDecl(decl_index), - .wasm => @fieldParentPtr(Wasm, "base", base).freeDecl(decl_index), - .spirv => @fieldParentPtr(SpirV, "base", base).freeDecl(decl_index), - .plan9 => @fieldParentPtr(Plan9, "base", base).freeDecl(decl_index), - .nvptx => @fieldParentPtr(NvPtx, "base", base).freeDecl(decl_index), + .c => { + @fieldParentPtr(C, "base", base).freeDecl(decl_index); + }, + inline else => |tag| { + if (build_options.only_c) unreachable; + @fieldParentPtr(tag.Type(), "base", base).freeDecl(decl_index); + }, } } @@ -682,19 +629,14 @@ pub const File = struct { exported: Module.Exported, exports: []const *Module.Export, ) UpdateExportsError!void { - if (build_options.only_c) { - assert(base.tag == .c); - return @fieldParentPtr(C, "base", base).updateExports(module, exported, exports); - } switch (base.tag) { - .coff => return @fieldParentPtr(Coff, "base", base).updateExports(module, exported, exports), - .elf => return @fieldParentPtr(Elf, "base", base).updateExports(module, exported, exports), - .macho => return @fieldParentPtr(MachO, "base", base).updateExports(module, exported, exports), - .c => return @fieldParentPtr(C, "base", base).updateExports(module, exported, exports), - .wasm => return @fieldParentPtr(Wasm, "base", base).updateExports(module, exported, exports), - .spirv => return @fieldParentPtr(SpirV, "base", base).updateExports(module, exported, exports), - .plan9 => return @fieldParentPtr(Plan9, "base", base).updateExports(module, exported, exports), - .nvptx => return @fieldParentPtr(NvPtx, "base", base).updateExports(module, exported, exports), + .c => { + return @fieldParentPtr(C, "base", base).updateExports(module, exported, exports); + }, + inline else => |tag| { + if (build_options.only_c) unreachable; + return @fieldParentPtr(tag.Type(), "base", base).updateExports(module, exported, exports); + }, } } @@ -711,60 +653,64 @@ pub const File = struct { /// May be called before or after updateFunc/updateDecl therefore it is up to the linker to allocate /// the block/atom. pub fn getDeclVAddr(base: *File, decl_index: InternPool.DeclIndex, reloc_info: RelocInfo) !u64 { - if (build_options.only_c) unreachable; + if (build_options.only_c) @compileError("unreachable"); switch (base.tag) { - .coff => return @fieldParentPtr(Coff, "base", base).getDeclVAddr(decl_index, reloc_info), - .elf => return @fieldParentPtr(Elf, "base", base).getDeclVAddr(decl_index, reloc_info), - .macho => return @fieldParentPtr(MachO, "base", base).getDeclVAddr(decl_index, reloc_info), - .plan9 => return @fieldParentPtr(Plan9, "base", base).getDeclVAddr(decl_index, reloc_info), .c => unreachable, - .wasm => return @fieldParentPtr(Wasm, "base", base).getDeclVAddr(decl_index, reloc_info), .spirv => unreachable, .nvptx => unreachable, + inline else => |tag| { + return @fieldParentPtr(tag.Type(), "base", base).getDeclVAddr(decl_index, reloc_info); + }, } } pub const LowerResult = @import("codegen.zig").Result; - pub fn lowerAnonDecl(base: *File, decl_val: InternPool.Index, decl_align: InternPool.Alignment, src_loc: Module.SrcLoc) !LowerResult { - if (build_options.only_c) unreachable; + pub fn lowerAnonDecl( + base: *File, + decl_val: InternPool.Index, + decl_align: InternPool.Alignment, + src_loc: Module.SrcLoc, + ) !LowerResult { + if (build_options.only_c) @compileError("unreachable"); switch (base.tag) { - .coff => return @fieldParentPtr(Coff, "base", base).lowerAnonDecl(decl_val, decl_align, src_loc), - .elf => return @fieldParentPtr(Elf, "base", base).lowerAnonDecl(decl_val, decl_align, src_loc), - .macho => return @fieldParentPtr(MachO, "base", base).lowerAnonDecl(decl_val, decl_align, src_loc), - .plan9 => return @fieldParentPtr(Plan9, "base", base).lowerAnonDecl(decl_val, src_loc), .c => unreachable, - .wasm => return @fieldParentPtr(Wasm, "base", base).lowerAnonDecl(decl_val, decl_align, src_loc), .spirv => unreachable, .nvptx => unreachable, + inline else => |tag| { + return @fieldParentPtr(tag.Type(), "base", base).lowerAnonDecl(decl_val, decl_align, src_loc); + }, } } pub fn getAnonDeclVAddr(base: *File, decl_val: InternPool.Index, reloc_info: RelocInfo) !u64 { - if (build_options.only_c) unreachable; + if (build_options.only_c) @compileError("unreachable"); switch (base.tag) { - .coff => return @fieldParentPtr(Coff, "base", base).getAnonDeclVAddr(decl_val, reloc_info), - .elf => return @fieldParentPtr(Elf, "base", base).getAnonDeclVAddr(decl_val, reloc_info), - .macho => return @fieldParentPtr(MachO, "base", base).getAnonDeclVAddr(decl_val, reloc_info), - .plan9 => return @fieldParentPtr(Plan9, "base", base).getAnonDeclVAddr(decl_val, reloc_info), .c => unreachable, - .wasm => return @fieldParentPtr(Wasm, "base", base).getAnonDeclVAddr(decl_val, reloc_info), .spirv => unreachable, .nvptx => unreachable, + inline else => |tag| { + return @fieldParentPtr(tag.Type(), "base", base).getAnonDeclVAddr(decl_val, reloc_info); + }, } } - pub fn deleteDeclExport(base: *File, decl_index: InternPool.DeclIndex, name: InternPool.NullTerminatedString) !void { - if (build_options.only_c) unreachable; + pub fn deleteDeclExport( + base: *File, + decl_index: InternPool.DeclIndex, + name: InternPool.NullTerminatedString, + ) !void { + if (build_options.only_c) @compileError("unreachable"); switch (base.tag) { - .coff => return @fieldParentPtr(Coff, "base", base).deleteDeclExport(decl_index, name), - .elf => return @fieldParentPtr(Elf, "base", base).deleteDeclExport(decl_index, name), - .macho => return @fieldParentPtr(MachO, "base", base).deleteDeclExport(decl_index, name), - .plan9 => {}, - .c => {}, - .wasm => return @fieldParentPtr(Wasm, "base", base).deleteDeclExport(decl_index), - .spirv => {}, - .nvptx => {}, + .plan9, + .c, + .spirv, + .nvptx, + => {}, + + inline else => |tag| { + return @fieldParentPtr(tag.Type(), "base", base).deleteDeclExport(decl_index, name); + }, } } @@ -1049,7 +995,7 @@ pub const File = struct { base: File, arena: Allocator, opt_loc: ?Compilation.EmitLoc, - ) Allocator.Error!?[*:0]u8 { + ) Allocator.Error!?[*:0]const u8 { const loc = opt_loc orelse return null; const slice = if (loc.directory) |directory| try directory.joinZ(arena, &.{loc.basename}) @@ -1071,7 +1017,7 @@ pub const File = struct { sub_prog_node.context.refresh(); defer sub_prog_node.end(); - try llvm_object.emit(comp, .{ + try llvm_object.emit(.{ .pre_ir_path = comp.verbose_llvm_ir, .pre_bc_path = comp.verbose_llvm_bc, .bin_path = try base.resolveEmitLoc(arena, .{ @@ -1079,8 +1025,8 @@ pub const File = struct { .basename = base.intermediary_basename.?, }), .asm_path = try base.resolveEmitLoc(arena, comp.emit_asm), - .post_llvm_ir_path = try base.resolveEmitLoc(arena, comp.emit_llvm_ir), - .post_llvm_bc_path = try base.resolveEmitLoc(arena, comp.emit_llvm_bc), + .post_ir_path = try base.resolveEmitLoc(arena, comp.emit_llvm_ir), + .post_bc_path = try base.resolveEmitLoc(arena, comp.emit_llvm_bc), .is_debug = comp.root_mod.optimize_mode == .Debug, .is_small = comp.root_mod.optimize_mode == .ReleaseSmall, |