tiny.tldr.formats.elf.layout.section

1pub const section = @import("section.zig");

1const std = @import("std");2const elf = @import("../root.zig");34const OutputSectionKind = elf.output_section.OutputSectionKind;5const output_section_count = elf.output_section.output_section_count;67pub const OutputSection = struct {8    kind: OutputSectionKind,9    file_size: u64 = 0,10    memory_size: u64 = 0,11    alignment: u64 = 1,12    file_offset: u64 = 0,13    address: u64 = 0,14    reserved_size: u64 = 0,15    section_index: u16 = 0,1617    pub fn logicalSize(self: OutputSection) u64 {18        if (self.kind.isAllocated()) return self.memory_size;19        return self.file_size;20    }2122    pub fn fileLoadSize(self: OutputSection) u64 {23        if (self.kind.isNoBits()) return 0;24        return self.reserved_size;25    }26};2728pub const SectionContribution = struct {29    output_index_plus_one: u8 = 0,30    offset: u64 = 0,31    size: u64 = 0,32    reserved_size: u64 = 0,33    alignment: u64 = 0,3435    pub fn init(output_index: usize, offset: u64, size: u64, reserved_size: u64, alignment: u64) SectionContribution {36        std.debug.assert(output_index < output_section_count);37        return .{38            .output_index_plus_one = @intCast(output_index + 1),39            .offset = offset,40            .size = size,41            .reserved_size = reserved_size,42            .alignment = alignment,43        };44    }4546    pub inline fn isPresent(self: SectionContribution) bool {47        return self.output_index_plus_one != 0;48    }4950    pub inline fn outputIndex(self: SectionContribution) usize {51        std.debug.assert(self.isPresent());52        return @as(usize, self.output_index_plus_one) - 1;53    }54};5556pub inline fn contributionAt(contributions: []const SectionContribution, index: usize) ?*const SectionContribution {57    if (index >= contributions.len) return null;58    const contribution = &contributions[index];59    if (!contribution.isPresent()) return null;60    return contribution;61}