74 lines
1.7 KiB
Zig
Vendored
74 lines
1.7 KiB
Zig
Vendored
const std = @import("std");
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const Allocator = std.mem.Allocator;
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const Elf = @import("Object/Elf.zig");
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const Object = @This();
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format: std.Target.ObjectFormat,
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target: std.Target,
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pub fn create(gpa: Allocator, target: std.Target) !*Object {
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switch (target.ofmt) {
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.elf => return Elf.create(gpa, target),
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else => unreachable,
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}
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}
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pub fn deinit(obj: *Object) void {
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switch (obj.format) {
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.elf => @fieldParentPtr(Elf, "obj", obj).deinit(),
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else => unreachable,
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}
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}
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pub const Section = union(enum) {
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undefined,
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data,
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read_only_data,
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func,
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strings,
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custom: []const u8,
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};
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pub fn getSection(obj: *Object, section: Section) !*std.ArrayList(u8) {
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switch (obj.format) {
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.elf => return @fieldParentPtr(Elf, "obj", obj).getSection(section),
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else => unreachable,
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}
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}
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pub const SymbolType = enum {
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func,
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variable,
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external,
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};
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pub fn declareSymbol(
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obj: *Object,
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section: Section,
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name: ?[]const u8,
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linkage: std.builtin.GlobalLinkage,
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@"type": SymbolType,
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offset: u64,
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size: u64,
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) ![]const u8 {
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switch (obj.format) {
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.elf => return @fieldParentPtr(Elf, "obj", obj).declareSymbol(section, name, linkage, @"type", offset, size),
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else => unreachable,
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}
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}
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pub fn addRelocation(obj: *Object, name: []const u8, section: Section, address: u64, addend: i64) !void {
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switch (obj.format) {
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.elf => return @fieldParentPtr(Elf, "obj", obj).addRelocation(name, section, address, addend),
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else => unreachable,
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}
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}
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pub fn finish(obj: *Object, file: std.fs.File) !void {
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switch (obj.format) {
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.elf => return @fieldParentPtr(Elf, "obj", obj).finish(file),
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else => unreachable,
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}
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}
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