From f5f7251972748d76f9f6e0cacdcae97a303a02dc Mon Sep 17 00:00:00 2001 From: Sunil Nimmagadda Date: Sat, 24 Oct 2026 16:28:16 +0530 Subject: Segments: normalize and validate. While here mark mandatory and optional fields. --- elf/segment.lua | 36 +++++++++++++++++++++++++++++------- 1 file changed, 29 insertions(+), 7 deletions(-) (limited to 'elf') diff --git a/elf/segment.lua b/elf/segment.lua index 662f42e..19cb6d0 100644 --- a/elf/segment.lua +++ b/elf/segment.lua @@ -3,17 +3,39 @@ local fmt = require("elf.fmt") ---@class Segment ---@field type SegmentType ----@field flags integer ----@field offset integer ----@field vaddr integer ----@field paddr integer ----@field filesz integer ----@field memsz integer ----@field align integer +---@field flags? integer +---@field offset? integer +---@field vaddr? integer +---@field paddr? integer +---@field filesz? integer +---@field memsz? integer +---@field align? integer +---@field first_section? string +---@field last_section? string ---@class Segments local M = {} + +function M.normalize(phdrs) + for _, phdr in ipairs(phdrs) do + phdr.flags = phdr.flags or 0 + phdr.offset = phdr.offset or 0 + phdr.vaddr = phdr.vaddr or 0 + phdr.paddr = phdr.paddr or 0 + phdr.filesz = phdr.filesz or 0 + phdr.memsz = phdr.memsz or 0 + phdr.align = phdr.align or 1 + end +end + +function M.validate(phdrs) + for _, phdr in ipairs(phdrs) do + if not phdr.type then error("type is required in segment", 3) end + -- TODO additional validations + end +end + ---@param phdr Segment ---@param endian Endian ---@return string -- cgit v1.3